If a subquery is used to drive an index, this change avoids making an extra

copy of the result of that subquery. But, such situations are probably sufficiently unusual that the added complexity of this enhancement is not worth the performance gain. So I'm going to park this check-in on a branch. If we later find a use case to justify it, we can merge it to trunk then. This is the "further change" that was promised by the prior check-in comment. FossilOrigin-Name: 4488cb883e155a7466946d25569ab2816c4a8de9d4c7d540f5053ea5334e7ae5
2021-05-28 14:28:54 +00:00
490 changed files with 10656 additions and 94282 deletions
@@ -165,7 +165,6 @@ LTINSTALL = $(LIBTOOL) --mode=install $(INSTALL)
 ###############################################################################

 USE_AMALGAMATION = @USE_AMALGAMATION@
-AMALGAMATION_LINE_MACROS = @AMALGAMATION_LINE_MACROS@

 # Object files for the SQLite library (non-amalgamation).
 #
@@ -180,7 +179,7 @@ LIBOBJS0 = alter.lo analyze.lo attach.lo auth.lo \
         fts3_unicode.lo fts3_unicode2.lo fts3_write.lo \
 	 fts5.lo \
         func.lo global.lo hash.lo \
-         icu.lo insert.lo json.lo legacy.lo loadext.lo \
+         icu.lo insert.lo json1.lo legacy.lo loadext.lo \
         main.lo malloc.lo mem0.lo mem1.lo mem2.lo mem3.lo mem5.lo \
         memdb.lo memjournal.lo \
         mutex.lo mutex_noop.lo mutex_unix.lo mutex_w32.lo \
@@ -234,7 +233,6 @@ SRC = \
  $(TOP)/src/hash.h \
  $(TOP)/src/hwtime.h \
  $(TOP)/src/insert.c \
-  $(TOP)/src/json.c \
  $(TOP)/src/legacy.c \
  $(TOP)/src/loadext.c \
  $(TOP)/src/main.c \
@@ -367,6 +365,7 @@ SRC += \
  $(TOP)/ext/rbu/sqlite3rbu.h \
  $(TOP)/ext/rbu/sqlite3rbu.c
 SRC += \
+  $(TOP)/ext/misc/json1.c \
  $(TOP)/ext/misc/stmt.c

 # Generated source code files
@@ -460,7 +459,6 @@ TESTSRC += \
  $(TOP)/ext/misc/normalize.c \
  $(TOP)/ext/misc/percentile.c \
  $(TOP)/ext/misc/prefixes.c \
-  $(TOP)/ext/misc/qpvtab.c \
  $(TOP)/ext/misc/regexp.c \
  $(TOP)/ext/misc/remember.c \
  $(TOP)/ext/misc/series.c \
@@ -469,8 +467,7 @@ TESTSRC += \
  $(TOP)/ext/misc/unionvtab.c \
  $(TOP)/ext/misc/wholenumber.c \
  $(TOP)/ext/misc/zipfile.c \
-  $(TOP)/ext/userauth/userauth.c \
-  $(TOP)/ext/rtree/test_rtreedoc.c
+  $(TOP)/ext/userauth/userauth.c

 # Source code to the library files needed by the test fixture
 #
@@ -503,7 +500,6 @@ TESTSRC2 = \
  $(TOP)/src/pcache1.c \
  $(TOP)/src/select.c \
  $(TOP)/src/tokenize.c \
-  $(TOP)/src/treeview.c \
  $(TOP)/src/utf.c \
  $(TOP)/src/util.c \
  $(TOP)/src/vdbeapi.c \
@@ -610,7 +606,7 @@ TESTOPTS = --verbose=file --output=test-out.txt

 # Extra compiler options for various shell tools
 #
-SHELL_OPT = -DSQLITE_ENABLE_FTS4
+SHELL_OPT = -DSQLITE_ENABLE_JSON1 -DSQLITE_ENABLE_FTS4
 #SHELL_OPT += -DSQLITE_ENABLE_FTS5
 SHELL_OPT += -DSQLITE_ENABLE_RTREE
 SHELL_OPT += -DSQLITE_ENABLE_EXPLAIN_COMMENTS
@@ -620,18 +616,18 @@ SHELL_OPT += -DSQLITE_ENABLE_DBPAGE_VTAB
 SHELL_OPT += -DSQLITE_ENABLE_DBSTAT_VTAB
 SHELL_OPT += -DSQLITE_ENABLE_BYTECODE_VTAB
 SHELL_OPT += -DSQLITE_ENABLE_OFFSET_SQL_FUNC
-FUZZERSHELL_OPT = 
-FUZZCHECK_OPT = -DSQLITE_ENABLE_MEMSYS5 -DSQLITE_OSS_FUZZ
+FUZZERSHELL_OPT = -DSQLITE_ENABLE_JSON1
+FUZZCHECK_OPT = -DSQLITE_ENABLE_JSON1 -DSQLITE_ENABLE_MEMSYS5 -DSQLITE_OSS_FUZZ
 FUZZCHECK_OPT += -DSQLITE_MAX_MEMORY=50000000
 FUZZCHECK_OPT += -DSQLITE_PRINTF_PRECISION_LIMIT=1000
 FUZZCHECK_OPT += -DSQLITE_ENABLE_FTS4
 FUZZCHECK_OPT += -DSQLITE_ENABLE_FTS3_PARENTHESIS
-FUZZCHECK_OPT += -DSQLITE_ENABLE_FTS5
+#FUZZCHECK_OPT += -DSQLITE_ENABLE_FTS5
 FUZZCHECK_OPT += -DSQLITE_ENABLE_RTREE
 FUZZCHECK_OPT += -DSQLITE_ENABLE_GEOPOLY
 FUZZCHECK_OPT += -DSQLITE_ENABLE_DBSTAT_VTAB
 FUZZCHECK_OPT += -DSQLITE_ENABLE_BYTECODE_VTAB
-FUZZCHECK_SRC = $(TOP)/test/fuzzcheck.c $(TOP)/test/ossfuzz.c $(TOP)/test/fuzzinvariants.c
+FUZZCHECK_SRC = $(TOP)/test/fuzzcheck.c $(TOP)/test/ossfuzz.c
 DBFUZZ_OPT =

 # This is the default Makefile target.  The objects listed here
@@ -760,7 +756,7 @@ mptest:	mptester$(TEXE)
 	touch .target_source

 sqlite3.c:	.target_source $(TOP)/tool/mksqlite3c.tcl
-	$(TCLSH_CMD) $(TOP)/tool/mksqlite3c.tcl $(AMALGAMATION_LINE_MACROS)
+	$(TCLSH_CMD) $(TOP)/tool/mksqlite3c.tcl
 	cp tsrc/sqlite3ext.h .
 	cp $(TOP)/ext/session/sqlite3session.h .

@@ -875,9 +871,6 @@ hash.lo:	$(TOP)/src/hash.c $(HDR)
 insert.lo:	$(TOP)/src/insert.c $(HDR)
 	$(LTCOMPILE) $(TEMP_STORE) -c $(TOP)/src/insert.c

-json.lo:	$(TOP)/src/json.c $(HDR)
-	$(LTCOMPILE) $(TEMP_STORE) -c $(TOP)/src/json.c
-
 legacy.lo:	$(TOP)/src/legacy.c $(HDR)
 	$(LTCOMPILE) $(TEMP_STORE) -c $(TOP)/src/legacy.c

@@ -1093,7 +1086,6 @@ SHELL_SRC = \
        $(TOP)/ext/misc/decimal.c \
 	$(TOP)/ext/misc/fileio.c \
        $(TOP)/ext/misc/ieee754.c \
-        $(TOP)/ext/misc/regexp.c \
        $(TOP)/ext/misc/series.c \
 	$(TOP)/ext/misc/shathree.c \
 	$(TOP)/ext/misc/sqlar.c \
@@ -1181,6 +1173,9 @@ userauth.lo:	$(TOP)/ext/userauth/userauth.c $(HDR) $(EXTHDR)
 sqlite3session.lo:	$(TOP)/ext/session/sqlite3session.c $(HDR) $(EXTHDR)
 	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)/ext/session/sqlite3session.c

+json1.lo:	$(TOP)/ext/misc/json1.c
+	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)/ext/misc/json1.c
+
 stmt.lo:	$(TOP)/ext/misc/stmt.c
 	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)/ext/misc/stmt.c

@@ -1253,10 +1248,7 @@ coretestprogs:	$(TESTPROGS)
 testprogs:	coretestprogs srcck1$(BEXE) fuzzcheck$(TEXE) sessionfuzz$(TEXE)

 # A very detailed test running most or all test cases
-fulltest:	alltest fuzztest
-
-# Run most or all tcl test cases
-alltest:	$(TESTPROGS)
+fulltest:	$(TESTPROGS) fuzztest
 	./testfixture$(TEXE) $(TOP)/test/all.test $(TESTOPTS)

 # Really really long testing
@@ -1281,12 +1273,6 @@ valgrindfuzz:	fuzzcheck$(TEXT) $(FUZZDATA) sessionfuzz$(TEXE) $(TOP)/test/sessio
 tcltest:	./testfixture$(TEXE)
 	./testfixture$(TEXE) $(TOP)/test/veryquick.test $(TESTOPTS)

-# Runs all the same tests cases as the "tcltest" target but uses
-# the testrunner.tcl script to run them in multiple cores
-# concurrently.
-testrunner:	testfixture$(TEXE)
-	./testfixture$(TEXE) $(TOP)/test/testrunner.tcl
-
 # Minimal testing that runs in less than 3 minutes
 #
 quicktest:	./testfixture$(TEXE)
@@ -1476,7 +1462,6 @@ clean:
 	rm -rf .libs .deps
 	rm -f lemon$(BEXE) lempar.c parse.* sqlite*.tar.gz
 	rm -f mkkeywordhash$(BEXE) keywordhash.h
-	rm -f mksourceid$(BEXE)
 	rm -f *.da *.bb *.bbg gmon.out
 	rm -rf tsrc .target_source
 	rm -f tclsqlite3$(TEXE)
@@ -1501,8 +1486,7 @@ clean:
 	rm -f threadtest5

 distclean:	clean
-	rm -f config.h config.log config.status libtool Makefile sqlite3.pc \
-		$(TESTPROGS)
+	rm -f config.h config.log config.status libtool Makefile sqlite3.pc

 #
 # Windows section
@@ -1521,144 +1505,3 @@ sqlite3.def: $(REAL_LIBOBJ)
 sqlite3.dll: $(REAL_LIBOBJ) sqlite3.def
 	$(TCC) -shared -o $@ sqlite3.def \
 		-Wl,"--strip-all" $(REAL_LIBOBJ)
-
-
-#
-# fiddle/wasm section
-#
-# Maintenance reminder: we can/should move this into the wasm-specific
-# GNU Make makefile, but we currently need it here for access to
-# $(SHELL_OPT). The rest of the wasm-related bits are handled via GNU
-# Make in ext/wasm/...
-#
-wasm_dir = ext/wasm
-wasm_dir_abs = $(TOP)/ext/wasm
-# ^^^ some emcc opts require absolute paths
-fiddle_dir = $(wasm_dir)/fiddle
-fiddle_dir_abs = $(TOP)/$(fiddle_dir)
-fiddle_module_js = $(fiddle_dir)/fiddle-module.js
-#emcc_opt = -O0
-#emcc_opt = -O1
-#emcc_opt = -O2
-#emcc_opt = -O3
-emcc_opt = -Oz
-emcc_flags = $(emcc_opt) \
-        -sALLOW_TABLE_GROWTH \
-        -sABORTING_MALLOC \
-        -sSTRICT_JS \
-        -sENVIRONMENT=web \
-        -sMODULARIZE \
-        -sEXPORTED_RUNTIME_METHODS=@$(wasm_dir_abs)/EXPORTED_RUNTIME_METHODS.fiddle \
-        -sDYNAMIC_EXECUTION=0 \
-        --minify 0 \
-        -I. $(SHELL_OPT) \
-        -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_UTF16 -DSQLITE_OMIT_DEPRECATED
-$(fiddle_module_js): Makefile sqlite3.c shell.c \
-    $(wasm_dir)/EXPORTED_RUNTIME_METHODS.fiddle \
-    $(wasm_dir)/EXPORTED_FUNCTIONS.fiddle
-	emcc -o $@ $(emcc_flags) \
-        -sEXPORT_NAME=initFiddleModule \
-        -sEXPORTED_FUNCTIONS=@$(wasm_dir_abs)/EXPORTED_FUNCTIONS.fiddle \
-        -DSQLITE_SHELL_FIDDLE \
-        sqlite3.c shell.c
-	gzip < $@ > $@.gz
-	gzip < $(fiddle_dir)/fiddle-module.wasm > $(fiddle_dir)/fiddle-module.wasm.gz
-$(fiddle_dir)/fiddle.js.gz: $(fiddle_dir)/fiddle.js
-	gzip < $< > $@
-
-fiddle_generated = $(fiddle_module_js) $(fiddle_module_js).gz \
-                   $(fiddle_dir)/fiddle-module.wasm \
-                   $(fiddle_dir)/fiddle-module.wasm.gz \
-                   $(fiddle_dir)/fiddle.js.gz
-
-clean-fiddle:
-	rm -f $(fiddle_generated)
-clean: clean-fiddle
-fiddle: $(fiddle_module_js) $(fiddle_dir)/fiddle.js.gz
-wasm: fiddle
-########################################################################
-# Explanation of the emcc build flags follows. Full docs for these can
-# be found at:
-#
-#  https://github.com/emscripten-core/emscripten/blob/main/src/settings.js
-#
-# -sENVIRONMENT=web: elides bootstrap code related to non-web JS
-#  environments like node.js. Removing this makes the output a tiny
-#  tick larger but hypothetically makes it more portable to
-#  non-browser JS environments.
-#
-# -sMODULARIZE: changes how the generated code is structured to avoid
-#  declaring a global Module object and instead installing a function
-#  which loads and initializes the module. The function is named...
-#
-# -sEXPORT_NAME=jsFunctionName (see -sMODULARIZE)
-#
-# -sEXPORTED_RUNTIME_METHODS=@/absolute/path/to/file: a file
-#  containing a list of emscripten-supplied APIs, one per line, which
-#  must be exported into the generated JS. Must be an absolute path!
-#
-# -sEXPORTED_FUNCTIONS=@/absolute/path/to/file: a file containing a
-#  list of C functions, one per line, which must be exported via wasm
-#  so they're visible to JS. C symbols names in that file must all
-#  start with an underscore for reasons known only to the emcc
-#  developers. e.g., _sqlite3_open_v2 and _sqlite3_finalize. Must be
-#  an absolute path!
-#
-# -sSTRICT_JS ensures that the emitted JS code includes the 'use
-#  strict' option. Note that -sSTRICT is more broadly-scoped and
-#  results in build errors.
-#
-# -sALLOW_TABLE_GROWTH is required for (at a minimum) the UDF-binding
-#  feature. Without it, JS functions cannot be made to proxy C-side
-#  callbacks.
-#
-# -sABORTING_MALLOC causes the JS-bound _malloc() to abort rather than
-#  return 0 on OOM. If set to 0 then all code which uses _malloc()
-#  must, just like in C, check the result before using it, else
-#  they're likely to corrupt the JS/WASM heap by writing to its
-#  address of 0. It is, as of this writing, enabled in Emscripten by
-#  default but we enable it explicitly in case that default changes.
-#
-# -sDYNAMIC_EXECUTION=0 disables eval() and the Function constructor.
-#  If the build runs without these, it's preferable to use this flag
-#  because certain execution environments disallow those constructs.
-#  This flag is not strictly necessary, however.
-#
-# -sWASM_BIGINT is UNTESTED but "should" allow the int64-using C APIs
-#  to work with JS/wasm, insofar as the JS environment supports the
-#  BigInt type. That support requires an extremely recent browser:
-#  Safari didn't get that support until late 2020.
-#
-# --no-entry: for compiling library code with no main(). If this is
-#  not supplied and the code has a main(), it is called as part of the
-#  module init process. Note that main() is #if'd out of shell.c
-#  (renamed) when building in wasm mode.
-#
-# --pre-js/--post-js=FILE relative or absolute paths to JS files to
-#  prepend/append to the emcc-generated bootstrapping JS. It's
-#  easier/faster to develop with separate JS files (reduces rebuilding
-#  requirements) but certain configurations, namely -sMODULARIZE, may
-#  require using at least a --pre-js file. They can be used
-#  individually and need not be paired.
-#
-# -O0..-O3 and -Oz: optimization levels affect not only C-style
-#  optimization but whether or not the resulting generated JS code
-#  gets minified. -O0 compiles _much_ more quickly than -O3 or -Oz,
-#  and doesn't minimize any JS code, so is recommended for
-#  development. -O3 or -Oz are recommended for deployment, but
-#  primarily because -Oz will shrink the wasm file notably. JS-side
-#  minification makes little difference in terms of overall
-#  distributable size.
-#
-# --minify 0: disables minification of the generated JS code,
-#  regardless of optimization level. Minification of the JS has
-#  minimal overall effect in the larger scheme of things and results
-#  in JS files which can neither be edited nor viewed as text files in
-#  Fossil (which flags them as binary because of their extreme line
-#  lengths). Interestingly, whether or not the comments in the
-#  generated JS file get stripped is unaffected by this setting and
-#  depends entirely on the optimization level. Higher optimization
-#  levels reduce the size of the JS considerably even without
-#  minification.
-#
-########################################################################
@@ -235,9 +235,8 @@ DEBUG = 0
 !ENDIF

 # <<mark>>
-# By default, use --linemacros=1 argument to the mksqlite3c.tcl tool, which
-# is used to build the amalgamation. This can be turned off to ease debug
-# of the amalgamation away from the source tree.
+# Disable use of the --linemacros argument to the mksqlite3c.tcl tool, which
+# is used to build the amalgamation.
 #
 !IFNDEF NO_LINEMACROS
 NO_LINEMACROS = 0
@@ -363,6 +362,7 @@ SQLITE_TCL_DEP =
 OPT_FEATURE_FLAGS = $(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_FTS3=1
 OPT_FEATURE_FLAGS = $(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_RTREE=1
 OPT_FEATURE_FLAGS = $(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_GEOPOLY=1
+OPT_FEATURE_FLAGS = $(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_JSON1=1
 OPT_FEATURE_FLAGS = $(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_STMTVTAB=1
 OPT_FEATURE_FLAGS = $(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_DBPAGE_VTAB=1
 OPT_FEATURE_FLAGS = $(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_DBSTAT_VTAB=1
@@ -579,17 +579,17 @@ RCC = $(RC) -DSQLITE_OS_WIN=1 -I. -I$(TOP) -I$(TOP)\src $(RCOPTS) $(RCCOPTS)
 #
 !IF $(USE_STDCALL)!=0 || $(FOR_WIN10)!=0
 !IF "$(PLATFORM)"=="x86"
-CORE_CCONV_OPTS = -Gz -guard:cf -DSQLITE_CDECL=__cdecl -DSQLITE_APICALL=__stdcall -DSQLITE_CALLBACK=__stdcall -DSQLITE_SYSAPI=__stdcall
-SHELL_CCONV_OPTS = -Gz -guard:cf -DSQLITE_CDECL=__cdecl -DSQLITE_APICALL=__stdcall -DSQLITE_CALLBACK=__stdcall -DSQLITE_SYSAPI=__stdcall
+CORE_CCONV_OPTS = -Gz -DSQLITE_CDECL=__cdecl -DSQLITE_APICALL=__stdcall -DSQLITE_CALLBACK=__stdcall -DSQLITE_SYSAPI=__stdcall
+SHELL_CCONV_OPTS = -Gz -DSQLITE_CDECL=__cdecl -DSQLITE_APICALL=__stdcall -DSQLITE_CALLBACK=__stdcall -DSQLITE_SYSAPI=__stdcall
 # <<mark>>
-TEST_CCONV_OPTS = -Gz -guard:cf -DSQLITE_CDECL=__cdecl -DSQLITE_APICALL=__stdcall -DSQLITE_CALLBACK=__stdcall -DSQLITE_SYSAPI=__stdcall -DINCLUDE_SQLITE_TCL_H=1 -DSQLITE_TCLAPI=__cdecl
+TEST_CCONV_OPTS = -Gz -DSQLITE_CDECL=__cdecl -DSQLITE_APICALL=__stdcall -DSQLITE_CALLBACK=__stdcall -DSQLITE_SYSAPI=__stdcall -DINCLUDE_SQLITE_TCL_H=1 -DSQLITE_TCLAPI=__cdecl
 # <</mark>>
 !ELSE
 !IFNDEF PLATFORM
-CORE_CCONV_OPTS = -Gz -guard:cf -DSQLITE_CDECL=__cdecl -DSQLITE_APICALL=__stdcall -DSQLITE_CALLBACK=__stdcall -DSQLITE_SYSAPI=__stdcall
-SHELL_CCONV_OPTS = -Gz -guard:cf -DSQLITE_CDECL=__cdecl -DSQLITE_APICALL=__stdcall -DSQLITE_CALLBACK=__stdcall -DSQLITE_SYSAPI=__stdcall
+CORE_CCONV_OPTS = -Gz -DSQLITE_CDECL=__cdecl -DSQLITE_APICALL=__stdcall -DSQLITE_CALLBACK=__stdcall -DSQLITE_SYSAPI=__stdcall
+SHELL_CCONV_OPTS = -Gz -DSQLITE_CDECL=__cdecl -DSQLITE_APICALL=__stdcall -DSQLITE_CALLBACK=__stdcall -DSQLITE_SYSAPI=__stdcall
 # <<mark>>
-TEST_CCONV_OPTS = -Gz -guard:cf -DSQLITE_CDECL=__cdecl -DSQLITE_APICALL=__stdcall -DSQLITE_CALLBACK=__stdcall -DSQLITE_SYSAPI=__stdcall -DINCLUDE_SQLITE_TCL_H=1 -DSQLITE_TCLAPI=__cdecl
+TEST_CCONV_OPTS = -Gz -DSQLITE_CDECL=__cdecl -DSQLITE_APICALL=__stdcall -DSQLITE_CALLBACK=__stdcall -DSQLITE_SYSAPI=__stdcall -DINCLUDE_SQLITE_TCL_H=1 -DSQLITE_TCLAPI=__cdecl
 # <</mark>>
 !ELSE
 CORE_CCONV_OPTS =
@@ -788,9 +788,9 @@ MKSQLITE3C_TOOL = $(TOP)\tool\mksqlite3c.tcl

 !IFNDEF MKSQLITE3C_ARGS
 !IF $(DEBUG)>1 && $(NO_LINEMACROS)==0
-MKSQLITE3C_ARGS = --linemacros=1
+MKSQLITE3C_ARGS = --linemacros
 !ELSE
-MKSQLITE3C_ARGS = --linemacros=0
+MKSQLITE3C_ARGS =
 !ENDIF
 !IF $(USE_STDCALL)!=0 || $(FOR_WIN10)!=0
 MKSQLITE3C_ARGS = $(MKSQLITE3C_ARGS) --useapicall
@@ -1247,7 +1247,7 @@ LIBOBJS0 = vdbe.lo parse.lo alter.lo analyze.lo attach.lo auth.lo \
         fts3_tokenize_vtab.lo fts3_unicode.lo fts3_unicode2.lo fts3_write.lo \
         fts5.lo \
         func.lo global.lo hash.lo \
-         icu.lo insert.lo json.lo legacy.lo loadext.lo \
+         icu.lo insert.lo json1.lo legacy.lo loadext.lo \
         main.lo malloc.lo mem0.lo mem1.lo mem2.lo mem3.lo mem5.lo \
         memdb.lo memjournal.lo \
         mutex.lo mutex_noop.lo mutex_unix.lo mutex_w32.lo \
@@ -1314,7 +1314,6 @@ SRC00 = \
  $(TOP)\src\global.c \
  $(TOP)\src\hash.c \
  $(TOP)\src\insert.c \
-  $(TOP)\src\json.c \
  $(TOP)\src\legacy.c \
  $(TOP)\src\loadext.c \
  $(TOP)\src\main.c \
@@ -1445,6 +1444,7 @@ SRC07 = \
  $(TOP)\ext\rtree\rtree.c \
  $(TOP)\ext\session\sqlite3session.c \
  $(TOP)\ext\rbu\sqlite3rbu.c \
+  $(TOP)\ext\misc\json1.c \
  $(TOP)\ext\misc\stmt.c

 # Extension header files, part 1.
@@ -1578,7 +1578,6 @@ TESTEXT = \
  $(TOP)\ext\misc\normalize.c \
  $(TOP)\ext\misc\percentile.c \
  $(TOP)\ext\misc\prefixes.c \
-  $(TOP)\ext\misc\qpvtab.c \
  $(TOP)\ext\misc\regexp.c \
  $(TOP)\ext\misc\remember.c \
  $(TOP)\ext\misc\series.c \
@@ -1586,7 +1585,6 @@ TESTEXT = \
  $(TOP)\ext\misc\totype.c \
  $(TOP)\ext\misc\unionvtab.c \
  $(TOP)\ext\misc\wholenumber.c \
-  $(TOP)\ext\rtree\test_rtreedoc.c \
  fts5.c

 # If use of zlib is enabled, add the "zipfile.c" source file.
@@ -1695,17 +1693,16 @@ SHELL_COMPILE_OPTS = $(SHELL_COMPILE_OPTS) -DSQLITE_ENABLE_OFFSET_SQL_FUNC=1
 # <<mark>>
 # Extra compiler options for various test tools.
 #
-MPTESTER_COMPILE_OPTS = -DSQLITE_ENABLE_FTS5
-FUZZERSHELL_COMPILE_OPTS =
-FUZZCHECK_OPTS = -DSQLITE_ENABLE_MEMSYS5 -DSQLITE_OSS_FUZZ -DSQLITE_MAX_MEMORY=50000000 -DSQLITE_PRINTF_PRECISION_LIMIT=1000
+MPTESTER_COMPILE_OPTS = -DSQLITE_ENABLE_JSON1 -DSQLITE_ENABLE_FTS5
+FUZZERSHELL_COMPILE_OPTS = -DSQLITE_ENABLE_JSON1
+FUZZCHECK_OPTS = -DSQLITE_ENABLE_JSON1 -DSQLITE_ENABLE_MEMSYS5 -DSQLITE_OSS_FUZZ -DSQLITE_MAX_MEMORY=50000000 -DSQLITE_PRINTF_PRECISION_LIMIT=1000
 FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_FTS4
-FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_FTS5
 FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_RTREE
 FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_GEOPOLY
 FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_DBSTAT_VTAB
 FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_ENABLE_BYTECODE_VTAB

-FUZZCHECK_SRC = $(TOP)\test\fuzzcheck.c $(TOP)\test\ossfuzz.c $(TOP)\test\fuzzinvariants.c
+FUZZCHECK_SRC = $(TOP)\test\fuzzcheck.c $(TOP)\test\ossfuzz.c
 OSSSHELL_SRC = $(TOP)\test\ossshell.c $(TOP)\test\ossfuzz.c
 DBFUZZ_COMPILE_OPTS = -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION
 KV_COMPILE_OPTS = -DSQLITE_THREADSAFE=0 -DSQLITE_DIRECT_OVERFLOW_READ
@@ -1990,9 +1987,6 @@ hash.lo:	$(TOP)\src\hash.c $(HDR)
 insert.lo:	$(TOP)\src\insert.c $(HDR)
 	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\insert.c

-json.lo:	$(TOP)\src\json.c $(HDR)
-	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\json.c
-
 legacy.lo:	$(TOP)\src\legacy.c $(HDR)
 	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\legacy.c

@@ -2214,11 +2208,10 @@ SHELL_SRC = \
 	$(TOP)\src\shell.c.in \
 	$(TOP)\ext\misc\appendvfs.c \
 	$(TOP)\ext\misc\completion.c \
-	$(TOP)\ext\misc\decimal.c \
+        $(TOP)\ext\misc\decimal.c \
 	$(TOP)\ext\misc\fileio.c \
-	$(TOP)\ext\misc\ieee754.c \
-	$(TOP)\ext\misc\regexp.c \
-	$(TOP)\ext\misc\series.c \
+        $(TOP)\ext\misc\ieee754.c \
+        $(TOP)\ext\misc\series.c \
 	$(TOP)\ext\misc\shathree.c \
 	$(TOP)\ext\misc\uint.c \
 	$(TOP)\ext\expert\sqlite3expert.c \
@@ -2301,6 +2294,9 @@ fts3_unicode2.lo:	$(TOP)\ext\fts3\fts3_unicode2.c $(HDR) $(EXTHDR)
 fts3_write.lo:	$(TOP)\ext\fts3\fts3_write.c $(HDR) $(EXTHDR)
 	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_write.c

+json1.lo:	$(TOP)\ext\misc\json1.c $(HDR) $(EXTHDR)
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\misc\json1.c
+
 stmt.lo:	$(TOP)\ext\misc\stmt.c $(HDR) $(EXTHDR)
 	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\misc\stmt.c

@@ -2392,6 +2388,7 @@ TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_DEFAULT_PAGE_SIZE=1024
 TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_ENABLE_STMTVTAB=1
 TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_ENABLE_DBPAGE_VTAB=1
 TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_ENABLE_BYTECODE_VTAB=1
+TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_ENABLE_JSON1=1
 TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_CKSUMVFS_STATIC=1
 TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) $(TEST_CCONV_OPTS)

@@ -2437,9 +2434,7 @@ coretestprogs:	$(TESTPROGS)

 testprogs:	coretestprogs srcck1.exe fuzzcheck.exe sessionfuzz.exe

-fulltest:	alltest fuzztest
-
-alltest:	$(TESTPROGS)
+fulltest:	$(TESTPROGS) fuzztest
 	@set PATH=$(LIBTCLPATH);$(PATH)
 	.\testfixture.exe $(TOP)\test\all.test $(TESTOPTS)

@@ -2467,20 +2462,10 @@ quicktest:	testfixture.exe sourcetest
 # This is the common case.  Run many tests that do not take too long,
 # including fuzzcheck, sqlite3_analyzer, and sqldiff tests.
 #
-test:	$(TESTPROGS) sourcetest fuzztest tcltest
-
-# The veryquick.test TCL tests.
-#
-tcltest: testfixture.exe
+test:	$(TESTPROGS) sourcetest fuzztest
 	@set PATH=$(LIBTCLPATH);$(PATH)
 	.\testfixture.exe $(TOP)\test\veryquick.test $(TESTOPTS)

-# Runs all the same tests cases as the "tcltest" target but uses
-# the testrunner.tcl script to run them in multiple cores
-# concurrently.
-testrunner:	testfixture.exe
-	.\testfixture.exe $(TOP)\test\testrunner.tcl
-
 smoketest:	$(TESTPROGS)
 	@set PATH=$(LIBTCLPATH);$(PATH)
 	.\testfixture.exe $(TOP)\test\main.test $(TESTOPTS)
@@ -2599,17 +2584,6 @@ rbu.exe:	$(TOP)\ext\rbu\rbu.c $(TOP)\ext\rbu\sqlite3rbu.c $(SQLITE3C) $(SQLITE3H
 	$(LTLINK) $(NO_WARN) -DSQLITE_ENABLE_RBU \
 		$(TOP)\ext\rbu\rbu.c $(SQLITE3C) /link $(LDFLAGS) $(LTLINKOPTS)

-THREADTEST3_SRC = \
-  $(TOP)\test\threadtest3.c \
-  $(TOP)\test\tt3_checkpoint.c \
-  $(TOP)\test\tt3_index.c \
-  $(TOP)\test\tt3_vacuum.c \
-  $(TOP)\test\tt3_stress.c \
-  $(TOP)\test\tt3_lookaside1.c
-
-threadtest3.exe: $(THREADTEST3_SRC) $(TOP)\src\test_multiplex.c $(SQLITE3C) $(SQLITE3H)
-	$(LTLINK) $(NO_WARN) $(TOP)\test\threadtest3.c $(TOP)\src\test_multiplex.c $(SQLITE3C) /link $(LDFLAGS) $(LTLINKOPTS)
-
 LSMDIR=$(TOP)\ext\lsm1
 !INCLUDE $(LSMDIR)\Makefile.msc

@@ -2647,7 +2621,7 @@ clean:
 	del /Q sqlite-*-output.vsix 2>NUL
 	del /Q fuzzershell.exe fuzzcheck.exe sqldiff.exe dbhash.exe 2>NUL
 	del /Q sqltclsh.* 2>NUL
-	del /Q dbfuzz.exe sessionfuzz.exe threadtest3.exe 2>NUL
+	del /Q dbfuzz.exe sessionfuzz.exe 2>NUL
 	del /Q kvtest.exe ossshell.exe scrub.exe 2>NUL
 	del /Q showshm.exe sqlite3_checker.* sqlite3_expert.exe 2>NUL
 	del /Q fts5.* fts5parse.* 2>NUL
@@ -1,7 +1,7 @@
 <h1 align="center">SQLite Source Repository</h1>

-This repository contains the complete source code for the
-[SQLite database engine](https://sqlite.org/).  Some test scripts
+This repository contains the complete source code for the 
+[SQLite database engine](https://sqlite.org/).  Some test scripts 
 are also included.  However, many other test scripts
 and most of the documentation are managed separately.

@@ -15,7 +15,7 @@ The [Fossil repository](https://sqlite.org/src/timeline) contains the urtext.
 If you are reading this on GitHub or some other Git repository or service,
 then you are looking at a mirror.  The names of check-ins and
 other artifacts in a Git mirror are different from the official
-names for those objects.  The official names for check-ins are
+names for those objects.  The offical names for check-ins are
 found in a footer on the check-in comment for authorized mirrors.
 The official check-in name can also be seen in the `manifest.uuid` file
 in the root of the tree.  Always use the official name, not  the
@@ -30,7 +30,7 @@ verify its integrity, there are hints on how to do that in the
 If you do not want to use Fossil, you can download tarballs or ZIP
 archives or [SQLite archives](https://sqlite.org/cli.html#sqlar) as follows:

-  *  Latest trunk check-in as
+  *  Lastest trunk check-in as
     [Tarball](https://www.sqlite.org/src/tarball/sqlite.tar.gz),
     [ZIP-archive](https://www.sqlite.org/src/zip/sqlite.zip), or
     [SQLite-archive](https://www.sqlite.org/src/sqlar/sqlite.sqlar).
@@ -47,11 +47,11 @@ archives or [SQLite archives](https://sqlite.org/cli.html#sqlar) as follows:
     then click on the "Tarball" or "ZIP Archive" links on the information
     page.

-If you do want to use Fossil to check out the source tree,
+If you do want to use Fossil to check out the source tree, 
 first install Fossil version 2.0 or later.
 (Source tarballs and precompiled binaries available
 [here](https://www.fossil-scm.org/fossil/uv/download.html).  Fossil is
-a stand-alone program.  To install, simply download or build the single
+a stand-alone program.  To install, simply download or build the single 
 executable file and put that file someplace on your $PATH.)
 Then run commands like this:

@@ -61,14 +61,14 @@ Then run commands like this:
        fossil open ~/Fossils/sqlite.fossil

 After setting up a repository using the steps above, you can always
-update to the latest version using:
+update to the lastest version using:

        fossil update trunk   ;# latest trunk check-in
        fossil update release ;# latest official release

 Or type "fossil ui" to get a web-based user interface.

-## Compiling for Unix-like systems
+## Compiling

 First create a directory in which to place
 the build products.  It is recommended, but not required, that the
@@ -94,22 +94,22 @@ script does not work out for you, there is a generic makefile named
 can copy and edit to suit your needs.  Comments on the generic makefile
 show what changes are needed.

-## Using MSVC for Windows systems
+## Using MSVC

 On Windows, all applicable build products can be compiled with MSVC.
 First open the command prompt window associated with the desired compiler
 version (e.g. "Developer Command Prompt for VS2013").  Next, use NMAKE
 with the provided "Makefile.msc" to build one of the supported targets.

-For example, from the parent directory of the source subtree named "sqlite":
+For example:

        mkdir bld
        cd bld
-        nmake /f ..\sqlite\Makefile.msc TOP=..\sqlite
-        nmake /f ..\sqlite\Makefile.msc sqlite3.c TOP=..\sqlite
-        nmake /f ..\sqlite\Makefile.msc sqlite3.dll TOP=..\sqlite
-        nmake /f ..\sqlite\Makefile.msc sqlite3.exe TOP=..\sqlite
-        nmake /f ..\sqlite\Makefile.msc test TOP=..\sqlite
+        nmake /f Makefile.msc TOP=..\sqlite
+        nmake /f Makefile.msc sqlite3.c TOP=..\sqlite
+        nmake /f Makefile.msc sqlite3.dll TOP=..\sqlite
+        nmake /f Makefile.msc sqlite3.exe TOP=..\sqlite
+        nmake /f Makefile.msc test TOP=..\sqlite

 There are several build options that can be set via the NMAKE command
 line.  For example, to build for WinRT, simply add "FOR_WINRT=1" argument
@@ -136,7 +136,7 @@ the "tclsqlite.c" file which implements the
 extension and only later escaped to the wild as an independent library.)

 Test scripts and programs are found in the **test/** subdirectory.
-Additional test code is found in other source repositories.
+Addtional test code is found in other source repositories.
 See [How SQLite Is Tested](http://www.sqlite.org/testing.html) for
 additional information.

@@ -170,7 +170,7 @@ at just the right spots. Note that comment text in the sqlite3.h file is
 used to generate much of the SQLite API documentation.  The Tcl scripts
 used to generate that documentation are in a separate source repository.

-The SQL language parser is **parse.c** which is generated from a grammar in
+The SQL language parser is **parse.c** which is generate from a grammar in
 the src/parse.y file.  The conversion of "parse.y" into "parse.c" is done
 by the [lemon](./doc/lemon.html) LALR(1) parser generator.  The source code
 for lemon is at tool/lemon.c.  Lemon uses the tool/lempar.c file as a
@@ -180,7 +180,7 @@ generates parse.c.

 The **opcodes.h** header file contains macros that define the numbers
 corresponding to opcodes in the "VDBE" virtual machine.  The opcodes.h
-file is generated by scanning the src/vdbe.c source file.  The
+file is generated by the scanning the src/vdbe.c source file.  The
 Tcl script at ./mkopcodeh.tcl does this scan and generates opcodes.h.
 A second Tcl script, ./mkopcodec.tcl, then scans opcodes.h to generate
 the **opcodes.c** source file, which contains a reverse mapping from
@@ -237,7 +237,7 @@ prepared statements, the description of
 [how transactions work](http://www.sqlite.org/atomiccommit.html), and
 the [overview of the query planner](http://www.sqlite.org/optoverview.html).

-Years of effort have gone into optimizing SQLite, both
+Years of effort have gone into optimizating SQLite, both
 for small size and high performance.  And optimizations tend to result in
 complex code.  So there is a lot of complexity in the current SQLite
 implementation.  It will not be the easiest library in the world to hack.
@@ -294,11 +294,11 @@ Key files:
     building the "testfixture.exe" program.  The testfixture.exe program is
     an enhanced Tcl shell.  The testfixture.exe program runs scripts in the
     test/ folder to validate the core SQLite code.  The testfixture program
-     (and some other test programs too) is built and run when you type
+     (and some other test programs too) is build and run when you type
     "make test".

  *  **ext/misc/json1.c** - This file implements the various JSON functions
-     that are built into SQLite.
+     that are build into SQLite.

 There are many other source files.  Each has a succinct header comment that
 describes its purpose and role within the larger system.
@@ -307,13 +307,11 @@ describes its purpose and role within the larger system.
 ## Verifying Code Authenticity

 The `manifest` file at the root directory of the source tree
-contains either a SHA3-256 hash (for newer files) or a SHA1 hash (for
+contains either a SHA3-256 hash (for newer files) or a SHA1 hash (for 
 older files) for every source file in the repository.
-The name of the version of the entire source tree is just the
-SHA3-256 hash of the `manifest` file itself, possibly with the
-last line of that file omitted if the last line begins with
-"`# Remove this line`".
-The `manifest.uuid` file should contain the SHA3-256 hash of the
+The SHA3-256 hash of the `manifest`
+file itself is the official name of the version of the source tree that you
+have. The `manifest.uuid` file should contain the SHA3-256 hash of the
 `manifest` file. If all of the above hash comparisons are correct, then
 you can be confident that your source tree is authentic and unadulterated.

@@ -1 +1 @@
-3.40.0
+3.36.0
@@ -285,6 +285,7 @@ SQLITE3EXEPDB = /pdb:sqlite3sh.pdb
 OPT_FEATURE_FLAGS = $(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_FTS3=1
 OPT_FEATURE_FLAGS = $(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_RTREE=1
 OPT_FEATURE_FLAGS = $(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_GEOPOLY=1
+OPT_FEATURE_FLAGS = $(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_JSON1=1
 OPT_FEATURE_FLAGS = $(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_STMTVTAB=1
 OPT_FEATURE_FLAGS = $(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_DBPAGE_VTAB=1
 OPT_FEATURE_FLAGS = $(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_DBSTAT_VTAB=1
@@ -501,12 +502,12 @@ RCC = $(RC) -DSQLITE_OS_WIN=1 -I. -I$(TOP) $(RCOPTS) $(RCCOPTS)
 #
 !IF $(USE_STDCALL)!=0 || $(FOR_WIN10)!=0
 !IF "$(PLATFORM)"=="x86"
-CORE_CCONV_OPTS = -Gz -guard:cf -DSQLITE_CDECL=__cdecl -DSQLITE_APICALL=__stdcall -DSQLITE_CALLBACK=__stdcall -DSQLITE_SYSAPI=__stdcall
-SHELL_CCONV_OPTS = -Gz -guard:cf -DSQLITE_CDECL=__cdecl -DSQLITE_APICALL=__stdcall -DSQLITE_CALLBACK=__stdcall -DSQLITE_SYSAPI=__stdcall
+CORE_CCONV_OPTS = -Gz -DSQLITE_CDECL=__cdecl -DSQLITE_APICALL=__stdcall -DSQLITE_CALLBACK=__stdcall -DSQLITE_SYSAPI=__stdcall
+SHELL_CCONV_OPTS = -Gz -DSQLITE_CDECL=__cdecl -DSQLITE_APICALL=__stdcall -DSQLITE_CALLBACK=__stdcall -DSQLITE_SYSAPI=__stdcall
 !ELSE
 !IFNDEF PLATFORM
-CORE_CCONV_OPTS = -Gz -guard:cf -DSQLITE_CDECL=__cdecl -DSQLITE_APICALL=__stdcall -DSQLITE_CALLBACK=__stdcall -DSQLITE_SYSAPI=__stdcall
-SHELL_CCONV_OPTS = -Gz -guard:cf -DSQLITE_CDECL=__cdecl -DSQLITE_APICALL=__stdcall -DSQLITE_CALLBACK=__stdcall -DSQLITE_SYSAPI=__stdcall
+CORE_CCONV_OPTS = -Gz -DSQLITE_CDECL=__cdecl -DSQLITE_APICALL=__stdcall -DSQLITE_CALLBACK=__stdcall -DSQLITE_SYSAPI=__stdcall
+SHELL_CCONV_OPTS = -Gz -DSQLITE_CDECL=__cdecl -DSQLITE_APICALL=__stdcall -DSQLITE_CALLBACK=__stdcall -DSQLITE_SYSAPI=__stdcall
 !ELSE
 CORE_CCONV_OPTS =
 SHELL_CCONV_OPTS =
@@ -105,7 +105,7 @@ may be specified in this manner as some require the amalgamation to be built
 with them enabled (see http://www.sqlite.org/compile.html). For example, the
 following will work:

-  "OPTS=-DSQLITE_ENABLE_STAT4=1 -DSQLITE_OMIT_JSON=1"
+  "OPTS=-DSQLITE_ENABLE_STAT4=1 -DSQLITE_ENABLE_JSON1=1"

 However, the following will not compile unless the amalgamation was built
 with it enabled:
@@ -173,6 +173,21 @@ else
 fi
 #-----------------------------------------------------------------------

+#-----------------------------------------------------------------------
+#   --enable-json1
+#
+AC_ARG_ENABLE(json1, [AS_HELP_STRING(
+  [--enable-json1], [include json1 support [default=yes]])], 
+  [],[enable_json1=yes])
+AC_MSG_CHECKING([JSON functions])
+if test x"$enable_json1" = "xyes"; then
+  BUILD_CFLAGS="$BUILD_CFLAGS -DSQLITE_ENABLE_JSON1"
+  AC_MSG_RESULT([enabled])
+else
+  AC_MSG_RESULT([disabled])
+fi
+#-----------------------------------------------------------------------
+
 #-----------------------------------------------------------------------
 #   --enable-rtree
 #
@@ -11,6 +11,8 @@
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+#
+# RCS: @(#) $Id: Makefile.in,v 1.59 2005/07/26 19:17:02 mdejong Exp $

 #========================================================================
 # Add additional lines to handle any additional AC_SUBST cases that
@@ -58,8 +60,6 @@ PKG_HEADERS	= @PKG_HEADERS@
 #========================================================================

 PKG_LIB_FILE	= @PKG_LIB_FILE@
-PKG_LIB_FILE8	= @PKG_LIB_FILE8@
-PKG_LIB_FILE9	= @PKG_LIB_FILE9@
 PKG_STUB_LIB_FILE = @PKG_STUB_LIB_FILE@

 lib_BINARIES	= $(PKG_LIB_FILE)
@@ -73,11 +73,10 @@ exec_prefix	= @exec_prefix@

 bindir		= @bindir@
 libdir		= @libdir@
-includedir	= @includedir@
 datarootdir	= @datarootdir@
-runstatedir	= @runstatedir@
 datadir		= @datadir@
 mandir		= @mandir@
+includedir	= @includedir@

 DESTDIR		=

@@ -86,25 +85,24 @@ pkgdatadir	= $(datadir)/$(PKG_DIR)
 pkglibdir	= $(libdir)/$(PKG_DIR)
 pkgincludedir	= $(includedir)/$(PKG_DIR)

-top_builddir	= @abs_top_builddir@
+top_builddir	= .

-INSTALL_OPTIONS	=
-INSTALL		= @INSTALL@ $(INSTALL_OPTIONS)
-INSTALL_DATA_DIR = @INSTALL_DATA_DIR@
-INSTALL_DATA	= @INSTALL_DATA@
+INSTALL		= @INSTALL@
 INSTALL_PROGRAM	= @INSTALL_PROGRAM@
+INSTALL_DATA	= @INSTALL_DATA@
 INSTALL_SCRIPT	= @INSTALL_SCRIPT@
-INSTALL_LIBRARY	= @INSTALL_LIBRARY@

 PACKAGE_NAME	= @PACKAGE_NAME@
 PACKAGE_VERSION	= @PACKAGE_VERSION@
 CC		= @CC@
-CCLD		= @CCLD@
 CFLAGS_DEFAULT	= @CFLAGS_DEFAULT@
 CFLAGS_WARNING	= @CFLAGS_WARNING@
+CLEANFILES	= @CLEANFILES@
 EXEEXT		= @EXEEXT@
 LDFLAGS_DEFAULT	= @LDFLAGS_DEFAULT@
 MAKE_LIB	= @MAKE_LIB@
+MAKE_SHARED_LIB	= @MAKE_SHARED_LIB@
+MAKE_STATIC_LIB	= @MAKE_STATIC_LIB@
 MAKE_STUB_LIB	= @MAKE_STUB_LIB@
 OBJEXT		= @OBJEXT@
 RANLIB		= @RANLIB@
@@ -119,6 +117,8 @@ TCL_SRC_DIR	= @TCL_SRC_DIR@
 #TK_BIN_DIR	= @TK_BIN_DIR@
 #TK_SRC_DIR	= @TK_SRC_DIR@

+# This is no longer necessary even for packages that use private Tcl headers
+#TCL_TOP_DIR_NATIVE	= @TCL_TOP_DIR_NATIVE@
 # Not used, but retained for reference of what libs Tcl required
 #TCL_LIBS	= @TCL_LIBS@

@@ -132,52 +132,41 @@ TCL_SRC_DIR	= @TCL_SRC_DIR@
 EXTRA_PATH	= $(top_builddir):$(TCL_BIN_DIR)
 #EXTRA_PATH	= $(top_builddir):$(TCL_BIN_DIR):$(TK_BIN_DIR)
 TCLLIBPATH	= $(top_builddir)
-TCLSH_ENV	= TCL_LIBRARY=`@CYGPATH@ $(TCL_SRC_DIR)/library`
-PKG_ENV		= @LD_LIBRARY_PATH_VAR@="$(EXTRA_PATH):$(@LD_LIBRARY_PATH_VAR@)" \
+TCLSH_ENV	= TCL_LIBRARY=`@CYGPATH@ $(TCL_SRC_DIR)/library` \
+		  @LD_LIBRARY_PATH_VAR@="$(EXTRA_PATH):$(@LD_LIBRARY_PATH_VAR@)" \
 		  PATH="$(EXTRA_PATH):$(PATH)" \
 		  TCLLIBPATH="$(TCLLIBPATH)"
+#		  TK_LIBRARY=`@CYGPATH@ $(TK_SRC_DIR)/library`

 TCLSH_PROG	= @TCLSH_PROG@
-TCLSH		= $(TCLSH_ENV) $(PKG_ENV) $(TCLSH_PROG)
+TCLSH	= $(TCLSH_ENV) $(TCLSH_PROG)

-#WISH_ENV	= TK_LIBRARY=`@CYGPATH@ $(TK_SRC_DIR)/library`
 #WISH_PROG	= @WISH_PROG@
-#WISH		= $(TCLSH_ENV) $(WISH_ENV) $(PKG_ENV) $(WISH_PROG)
+#WISH	= $(TCLSH_ENV) $(WISH_PROG)
+

 SHARED_BUILD	= @SHARED_BUILD@

-INCLUDES	= @PKG_INCLUDES@ @TCL_INCLUDES@ -I. -I$(srcdir)/..
+INCLUDES	= @PKG_INCLUDES@ @TCL_INCLUDES@ -I$(srcdir)/..
 #INCLUDES	= @PKG_INCLUDES@ @TCL_INCLUDES@ @TK_INCLUDES@ @TK_XINCLUDES@

 PKG_CFLAGS	= @PKG_CFLAGS@

 # TCL_DEFS is not strictly need here, but if you remove it, then you
-# must make sure that configure.ac checks for the necessary components
+# must make sure that configure.in checks for the necessary components
 # that your library may use.  TCL_DEFS can actually be a problem if
 # you do not compile with a similar machine setup as the Tcl core was
 # compiled with.
 #DEFS		= $(TCL_DEFS) @DEFS@ $(PKG_CFLAGS)
 DEFS		= @DEFS@ $(PKG_CFLAGS)

-# Move pkgIndex.tcl to 'BINARIES' var if it is generated in the Makefile
 CONFIG_CLEAN_FILES = Makefile pkgIndex.tcl
-CLEANFILES	= @CLEANFILES@

 CPPFLAGS	= @CPPFLAGS@
 LIBS		= @PKG_LIBS@ @LIBS@
 AR		= @AR@
 CFLAGS		= @CFLAGS@
-LDFLAGS		= @LDFLAGS@
-LDFLAGS_DEFAULT			= @LDFLAGS_DEFAULT@
-COMPILE		= $(CC) $(DEFS) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) \
-			  $(CFLAGS_DEFAULT) $(CFLAGS_WARNING) $(SHLIB_CFLAGS) $(CFLAGS)
-
-GDB		= gdb
-VALGRIND	= valgrind
-VALGRINDARGS	= --tool=memcheck --num-callers=8 --leak-resolution=high \
-		  --leak-check=yes --show-reachable=yes -v
-
-.SUFFIXES: .c .$(OBJEXT)
+COMPILE		= $(CC) $(DEFS) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)

 #========================================================================
 # Start of user-definable TARGETS section
@@ -185,7 +174,7 @@ VALGRINDARGS	= --tool=memcheck --num-callers=8 --leak-resolution=high \

 #========================================================================
 # TEA TARGETS.  Please note that the "libraries:" target refers to platform
-# independent files, and the "binaries:" target includes executable programs and
+# independent files, and the "binaries:" target inclues executable programs and
 # platform-dependent libraries.  Modify these targets so that they install
 # the various pieces of your package.  The make and install rules
 # for the BINARIES that you specified above have already been done.
@@ -204,6 +193,7 @@ binaries: $(BINARIES)

 libraries:

+
 #========================================================================
 # Your doc target should differentiate from doc builds (by the developer)
 # and doc installs (see install-doc), which just install the docs on the
@@ -226,11 +216,11 @@ install-binaries: binaries install-lib-binaries install-bin-binaries
 #========================================================================

 install-libraries: libraries
-	@$(INSTALL_DATA_DIR) "$(DESTDIR)$(includedir)"
+	@mkdir -p $(DESTDIR)$(includedir)
 	@echo "Installing header files in $(DESTDIR)$(includedir)"
 	@list='$(PKG_HEADERS)'; for i in $$list; do \
 	    echo "Installing $(srcdir)/$$i" ; \
-	    $(INSTALL_DATA) $(srcdir)/$$i "$(DESTDIR)$(includedir)" ; \
+	    $(INSTALL_DATA) $(srcdir)/$$i $(DESTDIR)$(includedir) ; \
 	done;

 #========================================================================
@@ -239,11 +229,12 @@ install-libraries: libraries
 #========================================================================

 install-doc: doc
-	@$(INSTALL_DATA_DIR) "$(DESTDIR)$(mandir)/mann"
+	@mkdir -p $(DESTDIR)$(mandir)/mann
 	@echo "Installing documentation in $(DESTDIR)$(mandir)"
 	@list='$(srcdir)/doc/*.n'; for i in $$list; do \
 	    echo "Installing $$i"; \
-	    $(INSTALL_DATA) $$i "$(DESTDIR)$(mandir)/mann" ; \
+	    rm -f $(DESTDIR)$(mandir)/mann/`basename $$i`; \
+	    $(INSTALL_DATA) $$i $(DESTDIR)$(mandir)/mann ; \
 	done

 test: binaries libraries
@@ -253,21 +244,7 @@ shell: binaries libraries
 	@$(TCLSH) $(SCRIPT)

 gdb:
-	$(TCLSH_ENV) $(PKG_ENV) $(GDB) $(TCLSH_PROG) $(SCRIPT)
-
-gdb-test: binaries libraries
-	$(TCLSH_ENV) $(PKG_ENV) $(GDB) \
-	    --args $(TCLSH_PROG) `@CYGPATH@ $(srcdir)/tests/all.tcl` \
-	    $(TESTFLAGS) -singleproc 1 \
-	    -load "package ifneeded $(PACKAGE_NAME) $(PACKAGE_VERSION) \
-		[list load `@CYGPATH@ $(PKG_LIB_FILE)` [string totitle $(PACKAGE_NAME)]]"
-
-valgrind: binaries libraries
-	$(TCLSH_ENV) $(PKG_ENV) $(VALGRIND) $(VALGRINDARGS) $(TCLSH_PROG) \
-	    `@CYGPATH@ $(srcdir)/tests/all.tcl` $(TESTFLAGS)
-
-valgrindshell: binaries libraries
-	$(TCLSH_ENV) $(PKG_ENV) $(VALGRIND) $(VALGRINDARGS) $(TCLSH_PROG) $(SCRIPT)
+	$(TCLSH_ENV) gdb $(TCLSH_PROG) $(SCRIPT)

 depend:

@@ -306,70 +283,49 @@ $(PKG_STUB_LIB_FILE): $(PKG_STUB_OBJECTS)
 # As necessary, add $(srcdir):$(srcdir)/compat:....
 #========================================================================

-VPATH = $(srcdir):$(srcdir)/generic:$(srcdir)/unix:$(srcdir)/win:$(srcdir)/macosx
+VPATH = $(srcdir):$(srcdir)/generic:$(srcdir)/unix:$(srcdir)/win

 .c.@OBJEXT@:
 	$(COMPILE) -c `@CYGPATH@ $<` -o $@

-tclsample.@OBJEXT@:	sampleUuid.h
-
-$(srcdir)/manifest.uuid:
-	printf "git-" >$(srcdir)/manifest.uuid
-	(cd $(srcdir); git rev-parse HEAD >>$(srcdir)/manifest.uuid || \
-	    (printf "svn-r" >$(srcdir)/manifest.uuid ; \
-	    svn info --show-item last-changed-revision >>$(srcdir)/manifest.uuid) || \
-	    printf "unknown" >$(srcdir)/manifest.uuid)
-
-sampleUuid.h:	$(srcdir)/manifest.uuid
-	echo "#define SAMPLE_VERSION_UUID \\" >$@
-	cat $(srcdir)/manifest.uuid >>$@
-	echo "" >>$@
-
 #========================================================================
 # Distribution creation
 # You may need to tweak this target to make it work correctly.
 #========================================================================

 #COMPRESS	= tar cvf $(PKG_DIR).tar $(PKG_DIR); compress $(PKG_DIR).tar
-COMPRESS	= tar zcvf $(PKG_DIR).tar.gz $(PKG_DIR)
+COMPRESS	= gtar zcvf $(PKG_DIR).tar.gz $(PKG_DIR)
 DIST_ROOT	= /tmp/dist
 DIST_DIR	= $(DIST_ROOT)/$(PKG_DIR)

-DIST_INSTALL_DATA	= CPPROG='cp -p' $(INSTALL) -m 644
-DIST_INSTALL_SCRIPT	= CPPROG='cp -p' $(INSTALL) -m 755
-
 dist-clean:
 	rm -rf $(DIST_DIR) $(DIST_ROOT)/$(PKG_DIR).tar.*

-dist: dist-clean $(srcdir)/manifest.uuid
-	$(INSTALL_DATA_DIR) $(DIST_DIR)
+dist: dist-clean
+	mkdir -p $(DIST_DIR)
+	cp -p $(srcdir)/README* $(srcdir)/license* \
+		$(srcdir)/aclocal.m4 $(srcdir)/configure $(srcdir)/*.in \
+		$(DIST_DIR)/
+	chmod 664 $(DIST_DIR)/Makefile.in $(DIST_DIR)/aclocal.m4
+	chmod 775 $(DIST_DIR)/configure $(DIST_DIR)/configure.in

-	# TEA files
-	$(DIST_INSTALL_DATA) $(srcdir)/Makefile.in \
-	    $(srcdir)/aclocal.m4 $(srcdir)/configure.ac \
-	    $(DIST_DIR)/
-	$(DIST_INSTALL_SCRIPT) $(srcdir)/configure $(DIST_DIR)/
+	for i in $(srcdir)/*.[ch]; do \
+	    if [ -f $$i ]; then \
+		cp -p $$i $(DIST_DIR)/ ; \
+	    fi; \
+	done;

-	$(INSTALL_DATA_DIR) $(DIST_DIR)/tclconfig
-	$(DIST_INSTALL_DATA) $(srcdir)/tclconfig/README.txt \
-	    $(srcdir)/manifest.uuid \
-	    $(srcdir)/tclconfig/tcl.m4 $(srcdir)/tclconfig/install-sh \
-	    $(DIST_DIR)/tclconfig/
+	mkdir $(DIST_DIR)/tclconfig
+	cp $(srcdir)/tclconfig/install-sh $(srcdir)/tclconfig/tcl.m4 \
+		$(DIST_DIR)/tclconfig/
+	chmod 664 $(DIST_DIR)/tclconfig/tcl.m4
+	chmod +x $(DIST_DIR)/tclconfig/install-sh

-	# Extension files
-	$(DIST_INSTALL_DATA) \
-	    $(srcdir)/ChangeLog \
-	    $(srcdir)/README.sha \
-	    $(srcdir)/license.terms \
-	    $(srcdir)/README \
-	    $(srcdir)/pkgIndex.tcl.in \
-	    $(DIST_DIR)/
-
-	list='demos doc generic library macosx tests unix win'; \
+	list='demos doc generic library mac tests unix win'; \
 	for p in $$list; do \
 	    if test -d $(srcdir)/$$p ; then \
-		$(INSTALL_DATA_DIR) $(DIST_DIR)/$$p; \
-		$(DIST_INSTALL_DATA) $(srcdir)/$$p/* $(DIST_DIR)/$$p/; \
+		mkdir $(DIST_DIR)/$$p; \
+		cp -p $(srcdir)/$$p/*.* $(DIST_DIR)/$$p/; \
 	    fi; \
 	done

@@ -381,10 +337,10 @@ dist: dist-clean $(srcdir)/manifest.uuid

 #========================================================================
 # Don't modify the file to clean here.  Instead, set the "CLEANFILES"
-# variable in configure.ac
+# variable in configure.in
 #========================================================================

-clean:
+clean:  
 	-test -z "$(BINARIES)" || rm -f $(BINARIES)
 	-rm -f *.$(OBJEXT) core *.core
 	-test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
@@ -392,7 +348,7 @@ clean:
 distclean: clean
 	-rm -f *.tab.c
 	-rm -f $(CONFIG_CLEAN_FILES)
-	-rm -f config.cache config.log config.status
+	-rm -f config.h config.cache config.log config.status

 #========================================================================
 # Install binary object libraries.  On Windows this includes both .dll and
@@ -406,17 +362,25 @@ distclean: clean
 #========================================================================

 install-lib-binaries: binaries
-	@$(INSTALL_DATA_DIR) "$(DESTDIR)$(pkglibdir)"
+	@mkdir -p $(DESTDIR)$(pkglibdir)
 	@list='$(lib_BINARIES)'; for p in $$list; do \
 	  if test -f $$p; then \
-	    echo " $(INSTALL_LIBRARY) $$p $(DESTDIR)$(pkglibdir)/$$p"; \
-	    $(INSTALL_LIBRARY) $$p "$(DESTDIR)$(pkglibdir)/$$p"; \
+	    echo " $(INSTALL_PROGRAM) $$p $(DESTDIR)$(pkglibdir)/$$p"; \
+	    $(INSTALL_PROGRAM) $$p $(DESTDIR)$(pkglibdir)/$$p; \
+	    stub=`echo $$p|sed -e "s/.*\(stub\).*/\1/"`; \
+	    if test "x$$stub" = "xstub"; then \
+		echo " $(RANLIB_STUB) $(DESTDIR)$(pkglibdir)/$$p"; \
+		$(RANLIB_STUB) $(DESTDIR)$(pkglibdir)/$$p; \
+	    else \
+		echo " $(RANLIB) $(DESTDIR)$(pkglibdir)/$$p"; \
+		$(RANLIB) $(DESTDIR)$(pkglibdir)/$$p; \
+	    fi; \
 	    ext=`echo $$p|sed -e "s/.*\.//"`; \
 	    if test "x$$ext" = "xdll"; then \
 		lib=`basename $$p|sed -e 's/.[^.]*$$//'`.lib; \
 		if test -f $$lib; then \
 		    echo " $(INSTALL_DATA) $$lib $(DESTDIR)$(pkglibdir)/$$lib"; \
-	            $(INSTALL_DATA) $$lib "$(DESTDIR)$(pkglibdir)/$$lib"; \
+	            $(INSTALL_DATA) $$lib $(DESTDIR)$(pkglibdir)/$$lib; \
 		fi; \
 	    fi; \
 	  fi; \
@@ -425,12 +389,12 @@ install-lib-binaries: binaries
 	  if test -f $(srcdir)/$$p; then \
 	    destp=`basename $$p`; \
 	    echo " Install $$destp $(DESTDIR)$(pkglibdir)/$$destp"; \
-	    $(INSTALL_DATA) $(srcdir)/$$p "$(DESTDIR)$(pkglibdir)/$$destp"; \
+	    $(INSTALL_DATA) $(srcdir)/$$p $(DESTDIR)$(pkglibdir)/$$destp; \
 	  fi; \
 	done
 	@if test "x$(SHARED_BUILD)" = "x1"; then \
 	    echo " Install pkgIndex.tcl $(DESTDIR)$(pkglibdir)"; \
-	    $(INSTALL_DATA) pkgIndex.tcl "$(DESTDIR)$(pkglibdir)"; \
+	    $(INSTALL_DATA) pkgIndex.tcl $(DESTDIR)$(pkglibdir); \
 	fi

 #========================================================================
@@ -443,32 +407,33 @@ install-lib-binaries: binaries
 #========================================================================

 install-bin-binaries: binaries
-	@$(INSTALL_DATA_DIR) "$(DESTDIR)$(bindir)"
+	@mkdir -p $(DESTDIR)$(bindir)
 	@list='$(bin_BINARIES)'; for p in $$list; do \
 	  if test -f $$p; then \
 	    echo " $(INSTALL_PROGRAM) $$p $(DESTDIR)$(bindir)/$$p"; \
-	    $(INSTALL_PROGRAM) $$p "$(DESTDIR)$(bindir)/$$p"; \
+	    $(INSTALL_PROGRAM) $$p $(DESTDIR)$(bindir)/$$p; \
 	  fi; \
 	done

+.SUFFIXES: .c .$(OBJEXT)
+
 Makefile: $(srcdir)/Makefile.in  $(top_builddir)/config.status
 	cd $(top_builddir) \
 	  && CONFIG_FILES=$@ CONFIG_HEADERS= $(SHELL) ./config.status

 uninstall-binaries:
 	list='$(lib_BINARIES)'; for p in $$list; do \
-	  rm -f "$(DESTDIR)$(pkglibdir)/$$p"; \
+	  rm -f $(DESTDIR)$(pkglibdir)/$$p; \
 	done
 	list='$(PKG_TCL_SOURCES)'; for p in $$list; do \
 	  p=`basename $$p`; \
-	  rm -f "$(DESTDIR)$(pkglibdir)/$$p"; \
+	  rm -f $(DESTDIR)$(pkglibdir)/$$p; \
 	done
 	list='$(bin_BINARIES)'; for p in $$list; do \
-	  rm -f "$(DESTDIR)$(bindir)/$$p"; \
+	  rm -f $(DESTDIR)$(bindir)/$$p; \
 	done

 .PHONY: all binaries clean depend distclean doc install libraries test
-.PHONY: gdb gdb-test valgrind valgrindshell

 # Tell versions [3.59,3.63) of GNU make to not export all variables.
 # Otherwise a system limit (for SysV at least) may be exceeded.
@@ -2,9 +2,11 @@
 dnl	This file is an input file used by the GNU "autoconf" program to
 dnl	generate the file "configure", which is run during Tcl installation
 dnl	to configure the system for the local environment.
+#
+# RCS: @(#) $Id: configure.in,v 1.43 2005/07/26 19:17:05 mdejong Exp $

 #-----------------------------------------------------------------------
-# Sample configure.ac for Tcl Extensions.  The only places you should
+# Sample configure.in for Tcl Extensions.  The only places you should
 # need to modify this file are marked by the string __CHANGE__
 #-----------------------------------------------------------------------

@@ -15,11 +17,9 @@ dnl	to configure the system for the local environment.
 # This initializes the environment with PACKAGE_NAME and PACKAGE_VERSION
 # set as provided.  These will also be added as -D defs in your Makefile
 # so you can encode the package version directly into the source files.
-# This will also define a special symbol for Windows (BUILD_<PACKAGE_NAME>
-# so that we create the export library with the dll.
 #-----------------------------------------------------------------------

-AC_INIT([sqlite],[3.40.0])
+AC_INIT([sqlite], [3.32.0])

 #--------------------------------------------------------------------
 # Call TEA_INIT as the first TEA_ macro to set up initial vars.
@@ -27,7 +27,7 @@ AC_INIT([sqlite],[3.40.0])
 # as well as PKG_LIB_FILE and PKG_STUB_LIB_FILE.
 #--------------------------------------------------------------------

-TEA_INIT()
+TEA_INIT([3.9])

 AC_CONFIG_AUX_DIR(tclconfig)

@@ -55,8 +55,8 @@ TEA_PREFIX
 #-----------------------------------------------------------------------
 # Standard compiler checks.
 # This sets up CC by using the CC env var, or looks for gcc otherwise.
-# This also calls AC_PROG_CC and a few others to create the basic setup
-# necessary to compile executables.
+# This also calls AC_PROG_CC, AC_PROG_INSTALL and a few others to create
+# the basic setup necessary to compile executables.
 #-----------------------------------------------------------------------

 TEA_SETUP_COMPILER
@@ -73,19 +73,11 @@ TEA_SETUP_COMPILER

 TEA_ADD_SOURCES([tclsqlite3.c])
 TEA_ADD_HEADERS([])
-TEA_ADD_INCLUDES([])
+TEA_ADD_INCLUDES([-I\"`\${CYGPATH} \${srcdir}/generic`\"])
 TEA_ADD_LIBS([])
 TEA_ADD_CFLAGS([-DSQLITE_ENABLE_FTS3=1])
-TEA_ADD_CFLAGS([-DSQLITE_ENABLE_FTS4=1])
-TEA_ADD_CFLAGS([-DSQLITE_ENABLE_FTS5=1])
 TEA_ADD_CFLAGS([-DSQLITE_3_SUFFIX_ONLY=1])
 TEA_ADD_CFLAGS([-DSQLITE_ENABLE_RTREE=1])
-TEA_ADD_CFLAGS([-DSQLITE_ENABLE_GEOPOLY=1])
-TEA_ADD_CFLAGS([-DSQLITE_ENABLE_MATH_FUNCTIONS=1])
-TEA_ADD_CFLAGS([-DSQLITE_ENABLE_DESERIALIZE=1])
-TEA_ADD_CFLAGS([-DSQLITE_ENABLE_DBPAGE_VTAB=1])
-TEA_ADD_CFLAGS([-DSQLITE_ENABLE_BYTECODE_VTAB=1])
-TEA_ADD_CFLAGS([-DSQLITE_ENABLE_DBSTAT_VTAB=1])
 TEA_ADD_STUB_SOURCES([])
 TEA_ADD_TCL_SOURCES([])

@@ -107,31 +99,6 @@ if test x$with_system_sqlite != xno; then
      LIBS="$LIBS -lsqlite3"])])
 fi

-#--------------------------------------------------------------------
-# __CHANGE__
-#
-# You can add more files to clean if your extension creates any extra
-# files by extending CLEANFILES.
-# Add pkgIndex.tcl if it is generated in the Makefile instead of ./configure
-# and change Makefile.in to move it from CONFIG_CLEAN_FILES to BINARIES var.
-#
-# A few miscellaneous platform-specific items:
-# TEA_ADD_* any platform specific compiler/build info here.
-#--------------------------------------------------------------------
-
-#CLEANFILES="$CLEANFILES pkgIndex.tcl"
-if test "${TEA_PLATFORM}" = "windows" ; then
-    # Ensure no empty if clauses
-    :
-    #TEA_ADD_SOURCES([win/winFile.c])
-    #TEA_ADD_INCLUDES([-I\"$(${CYGPATH} ${srcdir}/win)\"])
-else
-    # Ensure no empty else clauses
-    :
-    #TEA_ADD_SOURCES([unix/unixFile.c])
-    #TEA_ADD_LIBS([-lsuperfly])
-fi
-
 #--------------------------------------------------------------------
 # __CHANGE__
 # Choose which headers you need.  Extension authors should try very
@@ -184,6 +151,28 @@ TEA_CONFIG_CFLAGS

 TEA_ENABLE_SYMBOLS

+#--------------------------------------------------------------------
+# Everyone should be linking against the Tcl stub library.  If you
+# can't for some reason, remove this definition.  If you aren't using
+# stubs, you also need to modify the SHLIB_LD_LIBS setting below to
+# link against the non-stubbed Tcl library.  Add Tk too if necessary.
+#--------------------------------------------------------------------
+
+AC_DEFINE(USE_TCL_STUBS, 1, [Use Tcl stubs])
+#AC_DEFINE(USE_TK_STUBS, 1, [Use Tk stubs])
+
+
+#--------------------------------------------------------------------
+# Redefine fdatasync as fsync on systems that lack fdatasync
+#--------------------------------------------------------------------
+#
+#AC_CHECK_FUNC(fdatasync, , AC_DEFINE(fdatasync, fsync))
+# Check for library functions that SQLite can optionally use.
+AC_CHECK_FUNCS([fdatasync usleep fullfsync localtime_r gmtime_r])
+
+AC_FUNC_STRERROR_R
+
+
 #--------------------------------------------------------------------
 # This macro generates a line to use when building a library.  It
 # depends on values set by the TEA_ENABLE_SHARED, TEA_ENABLE_SYMBOLS,
@@ -204,24 +193,9 @@ TEA_PROG_TCLSH
 #TEA_PROG_WISH

 #--------------------------------------------------------------------
-# Setup a *Config.sh.in configuration file.
+# Finally, substitute all of the various values into the Makefile.
+# You may alternatively have a special pkgIndex.tcl.in or other files
+# which require substituting th AC variables in.  Include these here.
 #--------------------------------------------------------------------

-#TEA_EXPORT_CONFIG([sample])
-#AC_SUBST(SAMPLE_VAR)
-
-#--------------------------------------------------------------------
-# Specify files to substitute AC variables in. You may alternatively
-# have a special pkgIndex.tcl.in or other files which require
-# substituting the AC variables in. Include these here.
-#--------------------------------------------------------------------
-
-AC_CONFIG_FILES([Makefile pkgIndex.tcl])
-#AC_CONFIG_FILES([sampleConfig.sh])
-
-#--------------------------------------------------------------------
-# Finally, substitute all of the various values into the files
-# specified with AC_CONFIG_FILES.
-#--------------------------------------------------------------------
-
-AC_OUTPUT
+AC_OUTPUT([Makefile pkgIndex.tcl])
@@ -1,10 +1,7 @@
-# -*- tcl -*-
-# Tcl package index file, version 1.1
 #
-if {[package vsatisfies [package provide Tcl] 9.0-]} {
-    package ifneeded sqlite3 @PACKAGE_VERSION@ \
-	    [list load [file join $dir @PKG_LIB_FILE9@] sqlite3]
-} else {
-    package ifneeded sqlite3 @PACKAGE_VERSION@ \
-	    [list load [file join $dir @PKG_LIB_FILE8@] sqlite3]
-}
+# Tcl package index file
+#
+# Note sqlite*3* init specifically
+#
+package ifneeded sqlite3 @PACKAGE_VERSION@ \
+    [list load [file join $dir @PKG_LIB_FILE@] Sqlite3]
@@ -251,18 +251,7 @@ INCLUDES	= $(SQL_INCLUDES) $(TCL_INCLUDES) -I"$(WINDIR)" \
                  -I"$(GENERICDIR)" -I"$(ROOT)\.."
 BASE_CLFAGS	= $(cflags) $(cdebug) $(crt) $(INCLUDES) \
                  -DSQLITE_3_SUFFIX_ONLY=1 -DSQLITE_ENABLE_RTREE=1 \
-                  -DSQLITE_ENABLE_FTS3=1 -DSQLITE_OMIT_DEPRECATED=1 \
-                  -DSQLITE_ENABLE_FTS4=1 \
-                  -DSQLITE_ENABLE_FTS5=1 \
-                  -DSQLITE_3_SUFFIX_ONLY=1 \
-                  -DSQLITE_ENABLE_RTREE=1 \
-                  -DSQLITE_ENABLE_GEOPOLY=1 \
-                  -DSQLITE_ENABLE_MATH_FUNCTIONS=1 \
-                  -DSQLITE_ENABLE_DESERIALIZE=1 \
-                  -DSQLITE_ENABLE_DBPAGE_VTAB=1 \
-                  -DSQLITE_ENABLE_BYTECODE_VTAB=1 \
-                  -DSQLITE_ENABLE_DBSTAT_VTAB=1 
-
+                  -DSQLITE_ENABLE_FTS3=1 -DSQLITE_OMIT_DEPRECATED=1
 CON_CFLAGS	= $(cflags) $(cdebug) $(crt) -DCONSOLE -DSQLITE_ENABLE_FTS3=1
 TCL_CFLAGS	= -DBUILD_sqlite -DUSE_TCL_STUBS \
                  -DPACKAGE_VERSION="\"$(DOTVERSION)\"" $(BASE_CLFAGS) \
@@ -14,10 +14,13 @@

 #define _CRT_SECURE_NO_DEPRECATE
 #include <windows.h>
-#ifdef _MSC_VER
+#define NO_SHLWAPI_GDI
+#define NO_SHLWAPI_STREAM
+#define NO_SHLWAPI_REG
+#include <shlwapi.h>
 #pragma comment (lib, "user32.lib")
 #pragma comment (lib, "kernel32.lib")
-#endif
+#pragma comment (lib, "shlwapi.lib")
 #include <stdio.h>
 #include <math.h>

@@ -36,15 +39,15 @@
 #endif


+
 /* protos */

 static int CheckForCompilerFeature(const char *option);
-static int CheckForLinkerFeature(char **options, int count);
+static int CheckForLinkerFeature(const char *option);
 static int IsIn(const char *string, const char *substring);
 static int SubstituteFile(const char *substs, const char *filename);
 static int QualifyPath(const char *path);
-static int LocateDependency(const char *keyfile);
-static const char *GetVersionFromFile(const char *filename, const char *match, int numdots);
+static const char *GetVersionFromFile(const char *filename, const char *match);
 static DWORD WINAPI ReadFromPipe(LPVOID args);

 /* globals */
@@ -56,8 +59,8 @@ typedef struct {
    char buffer[STATICBUFFERSIZE];
 } pipeinfo;

-pipeinfo Out = {INVALID_HANDLE_VALUE, ""};
-pipeinfo Err = {INVALID_HANDLE_VALUE, ""};
+pipeinfo Out = {INVALID_HANDLE_VALUE, '\0'};
+pipeinfo Err = {INVALID_HANDLE_VALUE, '\0'};

 /*
 * exitcodes: 0 == no, 1 == yes, 2 == error
@@ -71,7 +74,6 @@ main(
    char msg[300];
    DWORD dwWritten;
    int chars;
-    const char *s;

    /*
     * Make sure children (cl.exe and link.exe) are kept quiet.
@@ -100,16 +102,16 @@ main(
 	    }
 	    return CheckForCompilerFeature(argv[2]);
 	case 'l':
-	    if (argc < 3) {
+	    if (argc != 3) {
 		chars = snprintf(msg, sizeof(msg) - 1,
-	       		"usage: %s -l <linker option> ?<mandatory option> ...?\n"
+	       		"usage: %s -l <linker option>\n"
 			"Tests for whether link.exe supports an option\n"
 			"exitcodes: 0 == no, 1 == yes, 2 == error\n", argv[0]);
 		WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, chars,
 			&dwWritten, NULL);
 		return 2;
 	    }
-	    return CheckForLinkerFeature(&argv[2], argc-2);
+	    return CheckForLinkerFeature(argv[2]);
 	case 'f':
 	    if (argc == 2) {
 		chars = snprintf(msg, sizeof(msg) - 1,
@@ -151,13 +153,8 @@ main(
 		    &dwWritten, NULL);
 		return 0;
 	    }
-	    s = GetVersionFromFile(argv[2], argv[3], *(argv[1]+2) - '0');
-	    if (s && *s) {
-		printf("%s\n", s);
-		return 0;
-	    } else
-		return 1; /* Version not found. Return non-0 exit code */
-
+	    printf("%s\n", GetVersionFromFile(argv[2], argv[3]));
+	    return 0;
 	case 'Q':
 	    if (argc != 3) {
 		chars = snprintf(msg, sizeof(msg) - 1,
@@ -169,18 +166,6 @@ main(
 		return 2;
 	    }
 	    return QualifyPath(argv[2]);
-
-	case 'L':
-	    if (argc != 3) {
-		chars = snprintf(msg, sizeof(msg) - 1,
-		    "usage: %s -L keypath\n"
-		    "Emit the fully qualified path of directory containing keypath\n"
-		    "exitcodes: 0 == success, 1 == not found, 2 == error\n", argv[0]);
-		WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, chars,
-		    &dwWritten, NULL);
-		return 2;
-	    }
-	    return LocateDependency(argv[2]);
 	}
    }
    chars = snprintf(msg, sizeof(msg) - 1,
@@ -275,7 +260,7 @@ CheckForCompilerFeature(
 		"Tried to launch: \"%s\", but got error [%u]: ", cmdline, err);

 	FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS|
-		FORMAT_MESSAGE_MAX_WIDTH_MASK, 0L, err, 0, (LPSTR)&msg[chars],
+		FORMAT_MESSAGE_MAX_WIDTH_MASK, 0L, err, 0, (LPVOID)&msg[chars],
 		(300-chars), 0);
 	WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, lstrlen(msg), &err,NULL);
 	return 2;
@@ -328,8 +313,7 @@ CheckForCompilerFeature(

 static int
 CheckForLinkerFeature(
-    char **options,
-    int count)
+    const char *option)
 {
    STARTUPINFO si;
    PROCESS_INFORMATION pi;
@@ -338,8 +322,7 @@ CheckForLinkerFeature(
    char msg[300];
    BOOL ok;
    HANDLE hProcess, h, pipeThreads[2];
-    int i;
-    char cmdline[255];
+    char cmdline[100];

    hProcess = GetCurrentProcess();

@@ -385,11 +368,7 @@ CheckForLinkerFeature(
     * Append our option for testing.
     */

-    for (i = 0; i < count; i++) {
-	lstrcat(cmdline, " \"");
-	lstrcat(cmdline, options[i]);
-	lstrcat(cmdline, "\"");
-    }
+    lstrcat(cmdline, option);

    ok = CreateProcess(
 	    NULL,	    /* Module name. */
@@ -409,7 +388,7 @@ CheckForLinkerFeature(
 		"Tried to launch: \"%s\", but got error [%u]: ", cmdline, err);

 	FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS|
-		FORMAT_MESSAGE_MAX_WIDTH_MASK, 0L, err, 0, (LPSTR)&msg[chars],
+		FORMAT_MESSAGE_MAX_WIDTH_MASK, 0L, err, 0, (LPVOID)&msg[chars],
 		(300-chars), 0);
 	WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, lstrlen(msg), &err,NULL);
 	return 2;
@@ -454,9 +433,7 @@ CheckForLinkerFeature(
    return !(strstr(Out.buffer, "LNK1117") != NULL ||
 	    strstr(Err.buffer, "LNK1117") != NULL ||
 	    strstr(Out.buffer, "LNK4044") != NULL ||
-	    strstr(Err.buffer, "LNK4044") != NULL ||
-	    strstr(Out.buffer, "LNK4224") != NULL ||
-	    strstr(Err.buffer, "LNK4224") != NULL);
+	    strstr(Err.buffer, "LNK4044") != NULL);
 }

 static DWORD WINAPI
@@ -502,9 +479,9 @@ IsIn(
 static const char *
 GetVersionFromFile(
    const char *filename,
-    const char *match,
-    int numdots)
+    const char *match)
 {
+    size_t cbBuffer = 100;
    static char szBuffer[100];
    char *szResult = NULL;
    FILE *fp = fopen(filename, "rt");
@@ -514,17 +491,16 @@ GetVersionFromFile(
 	 * Read data until we see our match string.
 	 */

-	while (fgets(szBuffer, sizeof(szBuffer), fp) != NULL) {
+	while (fgets(szBuffer, cbBuffer, fp) != NULL) {
 	    LPSTR p, q;

 	    p = strstr(szBuffer, match);
 	    if (p != NULL) {
 		/*
-		 * Skip to first digit after the match.
+		 * Skip to first digit.
 		 */

-		p += strlen(match);
-		while (*p && !isdigit((unsigned char)*p)) {
+		while (*p && !isdigit(*p)) {
 		    ++p;
 		}

@@ -533,13 +509,13 @@ GetVersionFromFile(
 		 */

 		q = p;
-		while (*q && (strchr("0123456789.ab", *q)) && (((!strchr(".ab", *q)
-			    && !strchr("ab", q[-1])) || --numdots))) {
+		while (*q && (isalnum(*q) || *q == '.')) {
 		    ++q;
 		}

-		*q = 0;
-		szResult = p;
+		memcpy(szBuffer, p, q - p);
+		szBuffer[q-p] = 0;
+		szResult = szBuffer;
 		break;
 	    }
 	}
@@ -562,7 +538,7 @@ typedef struct list_item_t {
 static list_item_t *
 list_insert(list_item_t **listPtrPtr, const char *key, const char *value)
 {
-    list_item_t *itemPtr = (list_item_t *)malloc(sizeof(list_item_t));
+    list_item_t *itemPtr = malloc(sizeof(list_item_t));
    if (itemPtr) {
 	itemPtr->key = strdup(key);
 	itemPtr->value = strdup(value);
@@ -611,7 +587,9 @@ SubstituteFile(
    const char *substitutions,
    const char *filename)
 {
+    size_t cbBuffer = 1024;
    static char szBuffer[1024], szCopy[1024];
+    char *szResult = NULL;
    list_item_t *substPtr = NULL;
    FILE *fp, *sp;

@@ -624,7 +602,7 @@ SubstituteFile(

 	sp = fopen(substitutions, "rt");
 	if (sp != NULL) {
-	    while (fgets(szBuffer, sizeof(szBuffer), sp) != NULL) {
+	    while (fgets(szBuffer, cbBuffer, sp) != NULL) {
 		unsigned char *ks, *ke, *vs, *ve;
 		ks = (unsigned char*)szBuffer;
 		while (ks && *ks && isspace(*ks)) ++ks;
@@ -641,7 +619,7 @@ SubstituteFile(
 	}

 	/* debug: dump the list */
-#ifndef NDEBUG
+#ifdef _DEBUG
 	{
 	    int n = 0;
 	    list_item_t *p = NULL;
@@ -650,12 +628,12 @@ SubstituteFile(
 	    }
 	}
 #endif
-
+	
 	/*
 	 * Run the substitutions over each line of the input
 	 */
-
-	while (fgets(szBuffer, sizeof(szBuffer), fp) != NULL) {
+	
+	while (fgets(szBuffer, cbBuffer, fp) != NULL) {
 	    list_item_t *p = NULL;
 	    for (p = substPtr; p != NULL; p = p->nextPtr) {
 		char *m = strstr(szBuffer, p->key);
@@ -672,26 +650,15 @@ SubstituteFile(
 		    memcpy(szBuffer, szCopy, sizeof(szCopy));
 		}
 	    }
-	    printf("%s", szBuffer);
+	    printf(szBuffer);
 	}
-
+	
 	list_free(&substPtr);
    }
    fclose(fp);
    return 0;
 }

-BOOL FileExists(LPCTSTR szPath)
-{
-#ifndef INVALID_FILE_ATTRIBUTES
-    #define INVALID_FILE_ATTRIBUTES ((DWORD)-1)
-#endif
-    DWORD pathAttr = GetFileAttributes(szPath);
-    return (pathAttr != INVALID_FILE_ATTRIBUTES &&
-	    !(pathAttr & FILE_ATTRIBUTE_DIRECTORY));
-}
-
-
 /*
 * QualifyPath --
 *
@@ -705,105 +672,17 @@ QualifyPath(
    const char *szPath)
 {
    char szCwd[MAX_PATH + 1];
-
-    GetFullPathName(szPath, sizeof(szCwd)-1, szCwd, NULL);
+    char szTmp[MAX_PATH + 1];
+    char *p;
+    GetCurrentDirectory(MAX_PATH, szCwd);
+    while ((p = strchr(szPath, '/')) && *p)
+	*p = '\\';
+    PathCombine(szTmp, szCwd, szPath);
+    PathCanonicalize(szCwd, szTmp);
    printf("%s\n", szCwd);
    return 0;
 }

-/*
- * Implements LocateDependency for a single directory. See that command
- * for an explanation.
- * Returns 0 if found after printing the directory.
- * Returns 1 if not found but no errors.
- * Returns 2 on any kind of error
- * Basically, these are used as exit codes for the process.
- */
-static int LocateDependencyHelper(const char *dir, const char *keypath)
-{
-    HANDLE hSearch;
-    char path[MAX_PATH+1];
-    size_t dirlen;
-    int keylen, ret;
-    WIN32_FIND_DATA finfo;
-
-    if (dir == NULL || keypath == NULL)
-	return 2; /* Have no real error reporting mechanism into nmake */
-    dirlen = strlen(dir);
-    if ((dirlen + 3) > sizeof(path))
-	return 2;
-    strncpy(path, dir, dirlen);
-    strncpy(path+dirlen, "\\*", 3);	/* Including terminating \0 */
-    keylen = strlen(keypath);
-
-#if 0 /* This function is not available in Visual C++ 6 */
-    /*
-     * Use numerics 0 -> FindExInfoStandard,
-     * 1 -> FindExSearchLimitToDirectories,
-     * as these are not defined in Visual C++ 6
-     */
-    hSearch = FindFirstFileEx(path, 0, &finfo, 1, NULL, 0);
-#else
-    hSearch = FindFirstFile(path, &finfo);
-#endif
-    if (hSearch == INVALID_HANDLE_VALUE)
-	return 1; /* Not found */
-
-    /* Loop through all subdirs checking if the keypath is under there */
-    ret = 1; /* Assume not found */
-    do {
-	int sublen;
-	/*
-	 * We need to check it is a directory despite the
-	 * FindExSearchLimitToDirectories in the above call. See SDK docs
-	 */
-	if ((finfo.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == 0)
-	    continue;
-	sublen = strlen(finfo.cFileName);
-	if ((dirlen+1+sublen+1+keylen+1) > sizeof(path))
-	    continue;		/* Path does not fit, assume not matched */
-	strncpy(path+dirlen+1, finfo.cFileName, sublen);
-	path[dirlen+1+sublen] = '\\';
-	strncpy(path+dirlen+1+sublen+1, keypath, keylen+1);
-	if (FileExists(path)) {
-	    /* Found a match, print to stdout */
-	    path[dirlen+1+sublen] = '\0';
-	    QualifyPath(path);
-	    ret = 0;
-	    break;
-	}
-    } while (FindNextFile(hSearch, &finfo));
-    FindClose(hSearch);
-    return ret;
-}
-
-/*
- * LocateDependency --
- *
- *	Locates a dependency for a package.
- *        keypath - a relative path within the package directory
- *          that is used to confirm it is the correct directory.
- *	The search path for the package directory is currently only
- *      the parent and grandparent of the current working directory.
- *      If found, the command prints
- *         name_DIRPATH=<full path of located directory>
- *      and returns 0. If not found, does not print anything and returns 1.
- */
-static int LocateDependency(const char *keypath)
-{
-    size_t i;
-    int ret;
-    static const char *paths[] = {"..", "..\\..", "..\\..\\.."};
-
-    for (i = 0; i < (sizeof(paths)/sizeof(paths[0])); ++i) {
-	ret = LocateDependencyHelper(paths[i], keypath);
-	if (ret == 0)
-	    return ret;
-    }
-    return ret;
-}
-
-
 /*
 * Local variables:
 *   mode: c
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for sqlite 3.40.0.
+# Generated by GNU Autoconf 2.69 for sqlite 3.36.0.
 #
 #
 # Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
@@ -726,8 +726,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='sqlite'
 PACKAGE_TARNAME='sqlite'
-PACKAGE_VERSION='3.40.0'
-PACKAGE_STRING='sqlite 3.40.0'
+PACKAGE_VERSION='3.36.0'
+PACKAGE_STRING='sqlite 3.36.0'
 PACKAGE_BUGREPORT=''
 PACKAGE_URL=''

@@ -770,7 +770,6 @@ ac_includes_default="\
 ac_subst_vars='LTLIBOBJS
 LIBOBJS
 BUILD_CFLAGS
-AMALGAMATION_LINE_MACROS
 USE_GCOV
 OPT_FEATURE_FLAGS
 HAVE_ZLIB
@@ -905,13 +904,13 @@ enable_debug
 enable_amalgamation
 enable_load_extension
 enable_math
-enable_json
 enable_all
 enable_memsys5
 enable_memsys3
 enable_fts3
 enable_fts4
 enable_fts5
+enable_json1
 enable_update_limit
 enable_geopoly
 enable_rtree
@@ -1468,7 +1467,7 @@ if test "$ac_init_help" = "long"; then
  # Omit some internal or obsolete options to make the list less imposing.
  # This message is too long to be a string in the A/UX 3.1 sh.
  cat <<_ACEOF
-\`configure' configures sqlite 3.40.0 to adapt to many kinds of systems.
+\`configure' configures sqlite 3.36.0 to adapt to many kinds of systems.

 Usage: $0 [OPTION]... [VAR=VALUE]...

@@ -1533,7 +1532,7 @@ fi

 if test -n "$ac_init_help"; then
  case $ac_init_help in
-     short | recursive ) echo "Configuration of sqlite 3.40.0:";;
+     short | recursive ) echo "Configuration of sqlite 3.36.0:";;
   esac
  cat <<\_ACEOF

@@ -1560,13 +1559,13 @@ Optional Features:
  --disable-load-extension
                          Disable loading of external extensions
  --disable-math          Disable math functions
-  --disable-json          Disable JSON functions
-  --enable-all            Enable FTS4, FTS5, Geopoly, RTree, Sessions
+  --enable-all            Enable FTS4, FTS5, Geopoly, JSON, RTree, Sessions
  --enable-memsys5        Enable MEMSYS5
  --enable-memsys3        Enable MEMSYS3
  --enable-fts3           Enable the FTS3 extension
  --enable-fts4           Enable the FTS4 extension
  --enable-fts5           Enable the FTS5 extension
+  --enable-json1          Enable the JSON1 extension
  --enable-update-limit   Enable the UPDATE/DELETE LIMIT clause
  --enable-geopoly        Enable the GEOPOLY extension
  --enable-rtree          Enable the RTREE extension
@@ -1661,7 +1660,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
  cat <<\_ACEOF
-sqlite configure 3.40.0
+sqlite configure 3.36.0
 generated by GNU Autoconf 2.69

 Copyright (C) 2012 Free Software Foundation, Inc.
@@ -2080,7 +2079,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.

-It was created by sqlite $as_me 3.40.0, which was
+It was created by sqlite $as_me 3.36.0, which was
 generated by GNU Autoconf 2.69.  Invocation command line was

  $ $0 $@
@@ -3938,13 +3937,13 @@ if ${lt_cv_nm_interface+:} false; then :
 else
  lt_cv_nm_interface="BSD nm"
  echo "int some_variable = 0;" > conftest.$ac_ext
-  (eval echo "\"\$as_me:3941: $ac_compile\"" >&5)
+  (eval echo "\"\$as_me:3940: $ac_compile\"" >&5)
  (eval "$ac_compile" 2>conftest.err)
  cat conftest.err >&5
-  (eval echo "\"\$as_me:3944: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
+  (eval echo "\"\$as_me:3943: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
  (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
  cat conftest.err >&5
-  (eval echo "\"\$as_me:3947: output\"" >&5)
+  (eval echo "\"\$as_me:3946: output\"" >&5)
  cat conftest.out >&5
  if $GREP 'External.*some_variable' conftest.out > /dev/null; then
    lt_cv_nm_interface="MS dumpbin"
@@ -5150,7 +5149,7 @@ ia64-*-hpux*)
  ;;
 *-*-irix6*)
  # Find out which ABI we are using.
-  echo '#line 5153 "configure"' > conftest.$ac_ext
+  echo '#line 5152 "configure"' > conftest.$ac_ext
  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
@@ -6675,11 +6674,11 @@ else
   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:6678: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:6677: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>conftest.err)
   ac_status=$?
   cat conftest.err >&5
-   echo "$as_me:6682: \$? = $ac_status" >&5
+   echo "$as_me:6681: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s "$ac_outfile"; then
     # The compiler can only warn and ignore the option if not recognized
     # So say no if there are warnings other than the usual output.
@@ -7014,11 +7013,11 @@ else
   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:7017: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:7016: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>conftest.err)
   ac_status=$?
   cat conftest.err >&5
-   echo "$as_me:7021: \$? = $ac_status" >&5
+   echo "$as_me:7020: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s "$ac_outfile"; then
     # The compiler can only warn and ignore the option if not recognized
     # So say no if there are warnings other than the usual output.
@@ -7119,11 +7118,11 @@ else
   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:7122: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:7121: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>out/conftest.err)
   ac_status=$?
   cat out/conftest.err >&5
-   echo "$as_me:7126: \$? = $ac_status" >&5
+   echo "$as_me:7125: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s out/conftest2.$ac_objext
   then
     # The compiler can only warn and ignore the option if not recognized
@@ -7174,11 +7173,11 @@ else
   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:7177: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:7176: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>out/conftest.err)
   ac_status=$?
   cat out/conftest.err >&5
-   echo "$as_me:7181: \$? = $ac_status" >&5
+   echo "$as_me:7180: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s out/conftest2.$ac_objext
   then
     # The compiler can only warn and ignore the option if not recognized
@@ -9554,7 +9553,7 @@ else
  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
  lt_status=$lt_dlunknown
  cat > conftest.$ac_ext <<_LT_EOF
-#line 9557 "configure"
+#line 9556 "configure"
 #include "confdefs.h"

 #if HAVE_DLFCN_H
@@ -9650,7 +9649,7 @@ else
  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
  lt_status=$lt_dlunknown
  cat > conftest.$ac_ext <<_LT_EOF
-#line 9653 "configure"
+#line 9652 "configure"
 #include "confdefs.h"

 #if HAVE_DLFCN_H
@@ -11497,24 +11496,6 @@ fi

 fi

-##########
-# Do we want to support JSON functions
-#
-# Check whether --enable-json was given.
-if test "${enable_json+set}" = set; then :
-  enableval=$enable_json;
-fi
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to support JSON functions" >&5
-$as_echo_n "checking whether to support JSON functions... " >&6; }
-if test "$enable_json" = "no"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-  OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_OMIT_JSON"
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-fi

 ########
 # The --enable-all argument is short-hand to enable
@@ -11719,6 +11700,24 @@ else
 $as_echo "no" >&6; }
 fi

+#########
+# See whether we should enable JSON1
+# Check whether --enable-json1 was given.
+if test "${enable_json1+set}" = set; then :
+  enableval=$enable_json1;
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to support JSON" >&5
+$as_echo_n "checking whether to support JSON... " >&6; }
+if test "${enable_json1}" = "yes" -o "${enable_all}" = "yes" ; then
+  OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_JSON1"
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
 #########
 # See whether we should enable the LIMIT clause on UPDATE and DELETE
 # statements.
@@ -11861,17 +11860,6 @@ else
 fi


-#########
-# Enable/disabled amalagamation line macros
-########
-AMALGAMATION_LINE_MACROS=--linemacros=0
-if test "${amalgamation_line_macros}" = "yes" ; then
-  AMALGAMATION_LINE_MACROS=--linemacros=1
-fi
-if test "${amalgamation_line_macros}" = "no" ; then
-  AMALGAMATION_LINE_MACROS=--linemacros=0
-fi
-

 #########
 # Output the config header
@@ -12390,7 +12378,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by sqlite $as_me 3.40.0, which was
+This file was extended by sqlite $as_me 3.36.0, which was
 generated by GNU Autoconf 2.69.  Invocation command line was

  CONFIG_FILES    = $CONFIG_FILES
@@ -12456,7 +12444,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-sqlite config.status 3.40.0
+sqlite config.status 3.36.0
 configured by $0, generated by GNU Autoconf 2.69,
  with options \\"\$ac_cs_config\\"

@@ -605,24 +605,12 @@ else
  AC_SEARCH_LIBS(ceil, m)
 fi

-##########
-# Do we want to support JSON functions
-#
-AC_ARG_ENABLE(json, 
-AC_HELP_STRING([--disable-json],[Disable JSON functions]))
-AC_MSG_CHECKING([whether to support JSON functions])
-if test "$enable_json" = "no"; then
-  AC_MSG_RESULT([no])
-  OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_OMIT_JSON"
-else
-  AC_MSG_RESULT([yes])
-fi

 ########
 # The --enable-all argument is short-hand to enable
 # multiple extensions.
 AC_ARG_ENABLE(all, AC_HELP_STRING([--enable-all],
-      [Enable FTS4, FTS5, Geopoly, RTree, Sessions]))
+      [Enable FTS4, FTS5, Geopoly, JSON, RTree, Sessions]))

 ##########
 # Do we want to support memsys3 and/or memsys5
@@ -678,6 +666,17 @@ else
  AC_MSG_RESULT([no])
 fi

+#########
+# See whether we should enable JSON1
+AC_ARG_ENABLE(json1, AC_HELP_STRING([--enable-json1],[Enable the JSON1 extension]))
+AC_MSG_CHECKING([whether to support JSON])
+if test "${enable_json1}" = "yes" -o "${enable_all}" = "yes" ; then
+  OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_JSON1"
+  AC_MSG_RESULT([yes])
+else
+  AC_MSG_RESULT([no])
+fi
+
 #########
 # See whether we should enable the LIMIT clause on UPDATE and DELETE
 # statements.
@@ -792,17 +791,6 @@ else
 fi
 AC_SUBST(USE_GCOV)

-#########
-# Enable/disabled amalagamation line macros
-########
-AMALGAMATION_LINE_MACROS=--linemacros=0
-if test "${amalgamation_line_macros}" = "yes" ; then
-  AMALGAMATION_LINE_MACROS=--linemacros=1
-fi
-if test "${amalgamation_line_macros}" = "no" ; then
-  AMALGAMATION_LINE_MACROS=--linemacros=0
-fi
-AC_SUBST(AMALGAMATION_LINE_MACROS)

 #########
 # Output the config header
@@ -1,144 +0,0 @@
-# JSON Functions Enhancements (2022)
-
-This document summaries enhancements to the SQLite JSON support added in
-early 2022.
-
-## 1.0 Change summary:
-
-  1.  New **->** and **->>** operators that work like MySQL and PostgreSQL (PG).
-  2.  JSON functions are built-in rather than being an extension.  They
-      are included by default, but can be omitted using the
-      -DSQLITE_OMIT_JSON compile-time option.
-
-
-## 2.0 New operators **->** and **->>**
-
-The SQLite language adds two new binary operators **->** and **->>**.
-Both operators are similar to json_extract().  The left operand is
-JSON and the right operand is a JSON path expression (possibly abbreviated
-for compatibility with PG - see below).  So they are similar to a
-two-argument call to json_extract().
-
-The difference between -> and ->> (and json_extract()) is as follows:
-
-  *  The -> operator always returns JSON.
-
-  *  The ->> operator converts the answer into a primitive SQL datatype
-     such as TEXT, INTEGER, REAL, or NULL.  If a JSON object or array
-     is selected, that object or array is rendered as text.  If a JSON
-     value is selected, that value is converted into its corresponding
-     SQL type
-
-  *  The json_extract() interface returns JSON when a JSON object or
-     array is selected, or a primitive SQL datatype when a JSON value
-     is selected.  This is different from MySQL, in which json_extract()
-     always returns JSON, but the difference is retained because it has
-     worked that way for 6 years and changing it now would likely break
-     a lot of legacy code.
-
-In MySQL and PG, the ->> operator always returns TEXT (or NULL) and never
-INTEGER or REAL.  This is due to limitations in the type handling capabilities
-of those systems.  In MySQL and PG, the result type a function or operator
-may only depend on the type of its arguments, never the value of its arguments.
-But the underlying JSON type depends on the value of the JSON path
-expression, not the type of the JSON path expression (which is always TEXT).
-Hence, the result type of ->> in MySQL and PG is unable to vary according
-to the type of the JSON value being extracted.
-
-The type system in SQLite is more general.  Functions in SQLite are able
-to return different datatypes depending on the value of their arguments.
-So the ->> operator in SQLite is able to return TEXT, INTEGER, REAL, or NULL
-depending on the JSON type of the value being extracted.  This means that
-the behavior of the ->> is slightly different in SQLite versus MySQL and PG
-in that it will sometimes return INTEGER and REAL values, depending on its
-inputs.  It is possible to implement the ->> operator in SQLite so that it
-always operates exactly like MySQL and PG and always returns TEXT or NULL,
-but I have been unable to think of any situations where returning the
-actual JSON value this would cause problems, so I'm including the enhanced
-functionality in SQLite.
-
-The table below attempts to summarize the differences between the
-> and ->> operators and the json_extract() function, for SQLite, MySQL,
-and PG.  JSON values are shown using their SQL text representation but
-in a bold font.
-
-
-<table border=1 cellpadding=5 cellspacing=0>
-<tr><th>JSON<th>PATH<th>-&gt; operator<br>(all)<th>-&gt;&gt; operator<br>(MySQL/PG)
-    <th>-&gt;&gt; operator<br>(SQLite)<th>json_extract()<br>(SQLite)
-<tr><td> **'{"a":123}'**     <td>'$.a'<td> **'123'**     <td> '123'          <td> 123           <td> 123
-<tr><td> **'{"a":4.5}'**     <td>'$.a'<td> **'4.5'**     <td> '4.5'          <td> 4.5           <td> 4.5
-<tr><td> **'{"a":"xyz"}'**   <td>'$.a'<td> **'"xyz"'**   <td> 'xyz'          <td> 'xyz'         <td> 'xyz'
-<tr><td> **'{"a":null}'**    <td>'$.a'<td> **'null'**    <td> NULL           <td> NULL          <td> NULL
-<tr><td> **'{"a":[6,7,8]}'** <td>'$.a'<td> **'[6,7,8]'** <td> '[6,7,8]'      <td> '[6,7,8]'     <td> **'[6,7,8]'**
-<tr><td> **'{"a":{"x":9}}'** <td>'$.a'<td> **'{"x":9}'** <td> '{"x":9}'      <td> '{"x":9}'     <td> **'{"x":9}'**
-<tr><td> **'{"b":999}'**     <td>'$.a'<td> NULL          <td> NULL           <td> NULL          <td> NULL
-</table>
-
-Important points about the table above:
-
-  *  The -> operator always returns either JSON or NULL.
-
-  *  The ->> operator never returns JSON.  It always returns TEXT or NULL, or in the
-     case of SQLite, INTEGER or REAL.
-
-  *  The MySQL json_extract() function works exactly the same
-     as the MySQL -> operator.
-
-  *  The SQLite json_extract() operator works like -> for JSON objects and
-     arrays, and like ->> for JSON values.
-
-  *  The -> operator works the same for all systems.
-
-  *  The only difference in ->> between SQLite and other systems is that
-     when the JSON value is numeric, SQLite returns a numeric SQL value,
-     whereas the other systems return a text representation of the numeric
-     value.
-
-### 2.1 Abbreviated JSON path expressions for PG compatibility
-
-The table above always shows the full JSON path expression: '$.a'.  But
-PG does not accept this syntax.  PG only allows a single JSON object label
-name or a single integer array index.  In order to provide compatibility
-with PG, The -> and ->> operators in SQLite are extended to also support
-a JSON object label or an integer array index for the right-hand side
-operand, in addition to a full JSON path expression.
-
-Thus, a -> or ->> operator that works on MySQL will work in
-SQLite.  And a -> or ->> operator that works in PG will work in SQLite.
-But because SQLite supports the union of the disjoint capabilities of
-MySQL and PG, there will always be -> and ->> operators that work in
-SQLite that do not work in one of MySQL and PG.  This is an unavoidable
-consequence of the different syntax for -> and ->> in MySQL and PG.
-
-In the following table, assume that "value1" is a JSON object and
-"value2" is a JSON array.
-
-<table border=1 cellpadding=5 cellspacing=0>
-<tr><th>SQL expression     <th>Works in MySQL?<th>Works in PG?<th>Works in SQLite
-<tr><td>value1-&gt;'$.a'   <td> yes           <td>  no        <td> yes
-<tr><td>value1-&gt;'a'     <td> no            <td>  yes       <td> yes
-<tr><td>value2-&gt;'$[2]'  <td> yes           <td>  no        <td> yes
-<tr><td>value2-&gt;2       <td> no            <td>  yes       <td> yes
-</table>
-
-The abbreviated JSON path expressions only work for the -> and ->> operators
-in SQLite.  The json_extract() function, and all other built-in SQLite
-JSON functions, continue to require complete JSON path expressions for their
-PATH arguments.
-
-## 3.0 JSON moved into the core
-
-The JSON interface is now moved into the SQLite core.
-
-When originally written in 2015, the JSON functions were an extension
-that could be optionally included at compile-time, or loaded at run-time.
-The implementation was in a source file named ext/misc/json1.c in the
-source tree.  JSON functions were only compiled in if the
-DSQLITE_ENABLE_JSON1 compile-time option was used.
-
-After these enhancements, the JSON functions are now built-ins.
-The source file that implements the JSON functions is moved to src/json.c.
-No special compile-time options are needed to load JSON into the build.
-Instead, there is a new -DSQLITE_OMIT_JSON compile-time option to leave
-them out.
@@ -196,7 +196,7 @@ do_setup_rec_test $tn.9.1 {
 } {
  SELECT * FROM "t t" WHERE a=?
 } {
-  CREATE INDEX "t t_idx_00000061" ON "t t"(a);
+  CREATE INDEX 't t_idx_00000061' ON 't t'(a);
  SEARCH t t USING INDEX t t_idx_00000061 (a=?) 
 }

@@ -205,7 +205,7 @@ do_setup_rec_test $tn.9.2 {
 } {
  SELECT * FROM "t t" WHERE b BETWEEN ? AND ?
 } {
-  CREATE INDEX "t t_idx_00000062" ON "t t"(b);
+  CREATE INDEX 't t_idx_00000062' ON 't t'(b);
  SEARCH t t USING INDEX t t_idx_00000062 (b>? AND b<?)
 }

@@ -391,16 +391,6 @@ do_setup_rec_test $tn.18.1 {
  SEARCH SomeObject USING COVERING INDEX SomeObject_idx_00000078 (x=?)
 }

-
-do_setup_rec_test $tn.19.0 {
-  CREATE TABLE t1("index");
-} {
-  SELECT * FROM t1 ORDER BY "index";
-} {
-  CREATE INDEX t1_idx_01a7214e ON t1('index');
-  SCAN t1 USING COVERING INDEX t1_idx_01a7214e
-}
-
 }

 proc do_candidates_test {tn sql res} {
@@ -15,23 +15,6 @@
 #include <string.h>
 #include <stdio.h>

-#if !defined(SQLITE_AMALGAMATION)
-#if defined(SQLITE_COVERAGE_TEST) || defined(SQLITE_MUTATION_TEST)
-# define SQLITE_OMIT_AUXILIARY_SAFETY_CHECKS 1
-#endif
-#if defined(SQLITE_OMIT_AUXILIARY_SAFETY_CHECKS)
-# define ALWAYS(X)      (1)
-# define NEVER(X)       (0)
-#elif !defined(NDEBUG)
-# define ALWAYS(X)      ((X)?1:(assert(0),0))
-# define NEVER(X)       ((X)?(assert(0),1):0)
-#else
-# define ALWAYS(X)      (X)
-# define NEVER(X)       (X)
-#endif
-#endif /* !defined(SQLITE_AMALGAMATION) */
-
-
 #ifndef SQLITE_OMIT_VIRTUALTABLE 

 typedef sqlite3_int64 i64;
@@ -697,31 +680,21 @@ static int idxGetTableInfo(
 ){
  sqlite3_stmt *p1 = 0;
  int nCol = 0;
-  int nTab;
-  int nByte;
+  int nTab = STRLEN(zTab);
+  int nByte = sizeof(IdxTable) + nTab + 1;
  IdxTable *pNew = 0;
  int rc, rc2;
  char *pCsr = 0;
  int nPk = 0;

-  *ppOut = 0;
-  if( zTab==0 ) return SQLITE_ERROR;
-  nTab = STRLEN(zTab);
-  nByte = sizeof(IdxTable) + nTab + 1;
  rc = idxPrintfPrepareStmt(db, &p1, pzErrmsg, "PRAGMA table_xinfo=%Q", zTab);
  while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(p1) ){
    const char *zCol = (const char*)sqlite3_column_text(p1, 1);
-    const char *zColSeq = 0;
-    if( zCol==0 ){
-      rc = SQLITE_ERROR;
-      break;
-    }
    nByte += 1 + STRLEN(zCol);
    rc = sqlite3_table_column_metadata(
-        db, "main", zTab, zCol, 0, &zColSeq, 0, 0, 0
+        db, "main", zTab, zCol, 0, &zCol, 0, 0, 0
    );
-    if( zColSeq==0 ) zColSeq = "binary";
-    nByte += 1 + STRLEN(zColSeq);
+    nByte += 1 + STRLEN(zCol);
    nCol++;
    nPk += (sqlite3_column_int(p1, 5)>0);
  }
@@ -741,23 +714,19 @@ static int idxGetTableInfo(
  nCol = 0;
  while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(p1) ){
    const char *zCol = (const char*)sqlite3_column_text(p1, 1);
-    const char *zColSeq = 0;
-    int nCopy;
-    if( zCol==0 ) continue;
-    nCopy = STRLEN(zCol) + 1;
+    int nCopy = STRLEN(zCol) + 1;
    pNew->aCol[nCol].zName = pCsr;
    pNew->aCol[nCol].iPk = (sqlite3_column_int(p1, 5)==1 && nPk==1);
    memcpy(pCsr, zCol, nCopy);
    pCsr += nCopy;

    rc = sqlite3_table_column_metadata(
-        db, "main", zTab, zCol, 0, &zColSeq, 0, 0, 0
+        db, "main", zTab, zCol, 0, &zCol, 0, 0, 0
    );
    if( rc==SQLITE_OK ){
-      if( zColSeq==0 ) zColSeq = "binary";
-      nCopy = STRLEN(zColSeq) + 1;
+      nCopy = STRLEN(zCol) + 1;
      pNew->aCol[nCol].zColl = pCsr;
-      memcpy(pCsr, zColSeq, nCopy);
+      memcpy(pCsr, zCol, nCopy);
      pCsr += nCopy;
    }

@@ -768,9 +737,9 @@ static int idxGetTableInfo(
  if( rc!=SQLITE_OK ){
    sqlite3_free(pNew);
    pNew = 0;
-  }else if( ALWAYS(pNew!=0) ){
+  }else{
    pNew->zName = pCsr;
-    if( ALWAYS(pNew->zName!=0) ) memcpy(pNew->zName, zTab, nTab+1);
+    memcpy(pNew->zName, zTab, nTab+1);
  }

  *ppOut = pNew;
@@ -820,10 +789,6 @@ static char *idxAppendText(int *pRc, char *zIn, const char *zFmt, ...){
 */
 static int idxIdentifierRequiresQuotes(const char *zId){
  int i;
-  int nId = STRLEN(zId);
-  
-  if( sqlite3_keyword_check(zId, nId) ) return 1;
-
  for(i=0; zId[i]; i++){
    if( !(zId[i]=='_')
     && !(zId[i]>='0' && zId[i]<='9')
@@ -900,7 +865,6 @@ static int idxFindCompatible(
    IdxConstraint *pT = pTail;
    sqlite3_stmt *pInfo = 0;
    const char *zIdx = (const char*)sqlite3_column_text(pIdxList, 1);
-    if( zIdx==0 ) continue;

    /* Zero the IdxConstraint.bFlag values in the pEq list */
    for(pIter=pEq; pIter; pIter=pIter->pLink) pIter->bFlag = 0;
@@ -946,19 +910,6 @@ static int idxFindCompatible(
  return 0;
 }

-/* Callback for sqlite3_exec() with query with leading count(*) column.
- * The first argument is expected to be an int*, referent to be incremented
- * if that leading column is not exactly '0'.
- */
-static int countNonzeros(void* pCount, int nc,
-                         char* azResults[], char* azColumns[]){
-  (void)azColumns;  /* Suppress unused parameter warning */
-  if( nc>0 && (azResults[0][0]!='0' || azResults[0][1]!=0) ){
-    *((int *)pCount) += 1;
-  }
-  return 0;
-}
-
 static int idxCreateFromCons(
  sqlite3expert *p,
  IdxScan *pScan,
@@ -985,40 +936,17 @@ static int idxCreateFromCons(
    if( rc==SQLITE_OK ){
      /* Hash the list of columns to come up with a name for the index */
      const char *zTable = pScan->pTab->zName;
-      int quoteTable = idxIdentifierRequiresQuotes(zTable);
-      char *zName = 0;          /* Index name */
-      int collisions = 0;
-      do{
-        int i;
-        char *zFind;
-        for(i=0; zCols[i]; i++){
-          h += ((h<<3) + zCols[i]);
-        }
-        sqlite3_free(zName);
-        zName = sqlite3_mprintf("%s_idx_%08x", zTable, h);
-        if( zName==0 ) break;
-        /* Is is unique among table, view and index names? */
-        zFmt = "SELECT count(*) FROM sqlite_schema WHERE name=%Q"
-          " AND type in ('index','table','view')";
-        zFind = sqlite3_mprintf(zFmt, zName);
-        i = 0;
-        rc = sqlite3_exec(dbm, zFind, countNonzeros, &i, 0);
-        assert(rc==SQLITE_OK);
-        sqlite3_free(zFind);
-        if( i==0 ){
-          collisions = 0;
-          break;
-        }
-        ++collisions;
-      }while( collisions<50 && zName!=0 );
-      if( collisions ){
-        /* This return means "Gave up trying to find a unique index name." */
-        rc = SQLITE_BUSY_TIMEOUT;
-      }else if( zName==0 ){
+      char *zName;                /* Index name */
+      int i;
+      for(i=0; zCols[i]; i++){
+        h += ((h<<3) + zCols[i]);
+      }
+      zName = sqlite3_mprintf("%s_idx_%08x", zTable, h);
+      if( zName==0 ){ 
        rc = SQLITE_NOMEM;
      }else{
-        if( quoteTable ){
-          zFmt = "CREATE INDEX \"%w\" ON \"%w\"(%s)";
+        if( idxIdentifierRequiresQuotes(zTable) ){
+          zFmt = "CREATE INDEX '%q' ON %Q(%s)";
        }else{
          zFmt = "CREATE INDEX %s ON %s(%s)";
        }
@@ -1027,11 +955,7 @@ static int idxCreateFromCons(
          rc = SQLITE_NOMEM;
        }else{
          rc = sqlite3_exec(dbm, zIdx, 0, 0, p->pzErrmsg);
-          if( rc!=SQLITE_OK ){
-            rc = SQLITE_BUSY_TIMEOUT;
-          }else{
-            idxHashAdd(&rc, &p->hIdx, zName, zIdx);
-          }
+          idxHashAdd(&rc, &p->hIdx, zName, zIdx);
        }
        sqlite3_free(zName);
        sqlite3_free(zIdx);
@@ -1183,7 +1107,7 @@ static void idxWriteFree(IdxWrite *pTab){
 ** runs all the queries to see which indexes they prefer, and populates
 ** IdxStatement.zIdx and IdxStatement.zEQP with the results.
 */
-static int idxFindIndexes(
+int idxFindIndexes(
  sqlite3expert *p,
  char **pzErr                         /* OUT: Error message (sqlite3_malloc) */
 ){
@@ -1312,7 +1236,6 @@ static int idxProcessOneTrigger(
  rc = idxPrintfPrepareStmt(p->db, &pSelect, pzErr, zSql, zTab, zTab);
  while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pSelect) ){
    const char *zCreate = (const char*)sqlite3_column_text(pSelect, 0);
-    if( zCreate==0 ) continue;
    rc = sqlite3_exec(p->dbv, zCreate, 0, 0, pzErr);
  }
  idxFinalize(&rc, pSelect);
@@ -1415,9 +1338,8 @@ static int idxCreateVtabSchema(sqlite3expert *p, char **pzErrmsg){
    const char *zName = (const char*)sqlite3_column_text(pSchema, 1);
    const char *zSql = (const char*)sqlite3_column_text(pSchema, 2);

-    if( zType==0 || zName==0 ) continue;
    if( zType[0]=='v' || zType[1]=='r' ){
-      if( zSql ) rc = sqlite3_exec(p->dbv, zSql, 0, 0, pzErrmsg);
+      rc = sqlite3_exec(p->dbv, zSql, 0, 0, pzErrmsg);
    }else{
      IdxTable *pTab;
      rc = idxGetTableInfo(p->db, zName, &pTab, pzErrmsg);
@@ -1554,7 +1476,6 @@ static void idxRemFunc(
    case SQLITE_BLOB:
    case SQLITE_TEXT: {
      int nByte = sqlite3_value_bytes(argv[1]);
-      const void *pData = 0;
      if( nByte>pSlot->nByte ){
        char *zNew = (char*)sqlite3_realloc(pSlot->z, nByte*2);
        if( zNew==0 ){
@@ -1566,11 +1487,9 @@ static void idxRemFunc(
      }
      pSlot->n = nByte;
      if( pSlot->eType==SQLITE_BLOB ){
-        pData = sqlite3_value_blob(argv[1]);
-        if( pData ) memcpy(pSlot->z, pData, nByte);
+        memcpy(pSlot->z, sqlite3_value_blob(argv[1]), nByte);
      }else{
-        pData = sqlite3_value_text(argv[1]);
-        memcpy(pSlot->z, pData, nByte);
+        memcpy(pSlot->z, sqlite3_value_text(argv[1]), nByte);
      }
      break;
    }
@@ -1781,7 +1700,6 @@ static int idxPopulateStat1(sqlite3expert *p, char **pzErr){
    i64 iRowid = sqlite3_column_int64(pAllIndex, 0);
    const char *zTab = (const char*)sqlite3_column_text(pAllIndex, 1);
    const char *zIdx = (const char*)sqlite3_column_text(pAllIndex, 2);
-    if( zTab==0 || zIdx==0 ) continue;
    if( p->iSample<100 && iPrev!=iRowid ){
      samplectx.target = (double)p->iSample / 100.0;
      samplectx.iTarget = p->iSample;
@@ -1848,14 +1766,14 @@ sqlite3expert *sqlite3_expert_new(sqlite3 *db, char **pzErrmsg){

  /* Copy the entire schema of database [db] into [dbm]. */
  if( rc==SQLITE_OK ){
-    sqlite3_stmt *pSql = 0;
+    sqlite3_stmt *pSql;
    rc = idxPrintfPrepareStmt(pNew->db, &pSql, pzErrmsg, 
        "SELECT sql FROM sqlite_schema WHERE name NOT LIKE 'sqlite_%%'"
        " AND sql NOT LIKE 'CREATE VIRTUAL %%'"
    );
    while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pSql) ){
      const char *zSql = (const char*)sqlite3_column_text(pSql, 0);
-      if( zSql ) rc = sqlite3_exec(pNew->dbm, zSql, 0, 0, pzErrmsg);
+      rc = sqlite3_exec(pNew->dbm, zSql, 0, 0, pzErrmsg);
    }
    idxFinalize(&rc, pSql);
  }
@@ -1961,10 +1879,6 @@ int sqlite3_expert_analyze(sqlite3expert *p, char **pzErr){
  /* Create candidate indexes within the in-memory database file */
  if( rc==SQLITE_OK ){
    rc = idxCreateCandidates(p);
-  }else if ( rc==SQLITE_BUSY_TIMEOUT ){
-    if( pzErr )
-      *pzErr = sqlite3_mprintf("Cannot find a unique index name to propose.");
-    return rc;
  }

  /* Generate the stat1 data */
@@ -308,17 +308,18 @@
  SQLITE_EXTENSION_INIT1
 #endif

-typedef struct Fts3HashWrapper Fts3HashWrapper;
-struct Fts3HashWrapper {
-  Fts3Hash hash;                  /* Hash table */
-  int nRef;                       /* Number of pointers to this object */
-};
-
 static int fts3EvalNext(Fts3Cursor *pCsr);
 static int fts3EvalStart(Fts3Cursor *pCsr);
 static int fts3TermSegReaderCursor(
    Fts3Cursor *, const char *, int, int, Fts3MultiSegReader **);

+#ifndef SQLITE_AMALGAMATION
+# if defined(SQLITE_DEBUG)
+int sqlite3Fts3Always(int b) { assert( b ); return b; }
+int sqlite3Fts3Never(int b)  { assert( !b ); return b; }
+# endif
+#endif
+
 /*
 ** This variable is set to false when running tests for which the on disk
 ** structures should not be corrupt. Otherwise, true. If it is false, extra
@@ -1178,7 +1179,7 @@ static int fts3InitVtab(
  sqlite3_vtab **ppVTab,          /* Write the resulting vtab structure here */
  char **pzErr                    /* Write any error message here */
 ){
-  Fts3Hash *pHash = &((Fts3HashWrapper*)pAux)->hash;
+  Fts3Hash *pHash = (Fts3Hash *)pAux;
  Fts3Table *p = 0;               /* Pointer to allocated vtab */
  int rc = SQLITE_OK;             /* Return code */
  int i;                          /* Iterator variable */
@@ -4013,12 +4014,9 @@ static const sqlite3_module fts3Module = {
 ** allocated for the tokenizer hash table.
 */
 static void hashDestroy(void *p){
-  Fts3HashWrapper *pHash = (Fts3HashWrapper *)p;
-  pHash->nRef--;
-  if( pHash->nRef<=0 ){
-    sqlite3Fts3HashClear(&pHash->hash);
-    sqlite3_free(pHash);
-  }
+  Fts3Hash *pHash = (Fts3Hash *)p;
+  sqlite3Fts3HashClear(pHash);
+  sqlite3_free(pHash);
 }

 /*
@@ -4048,7 +4046,7 @@ void sqlite3Fts3IcuTokenizerModule(sqlite3_tokenizer_module const**ppModule);
 */
 int sqlite3Fts3Init(sqlite3 *db){
  int rc = SQLITE_OK;
-  Fts3HashWrapper *pHash = 0;
+  Fts3Hash *pHash = 0;
  const sqlite3_tokenizer_module *pSimple = 0;
  const sqlite3_tokenizer_module *pPorter = 0;
 #ifndef SQLITE_DISABLE_FTS3_UNICODE
@@ -4076,24 +4074,23 @@ int sqlite3Fts3Init(sqlite3 *db){
  sqlite3Fts3PorterTokenizerModule(&pPorter);

  /* Allocate and initialize the hash-table used to store tokenizers. */
-  pHash = sqlite3_malloc(sizeof(Fts3HashWrapper));
+  pHash = sqlite3_malloc(sizeof(Fts3Hash));
  if( !pHash ){
    rc = SQLITE_NOMEM;
  }else{
-    sqlite3Fts3HashInit(&pHash->hash, FTS3_HASH_STRING, 1);
-    pHash->nRef = 0;
+    sqlite3Fts3HashInit(pHash, FTS3_HASH_STRING, 1);
  }

  /* Load the built-in tokenizers into the hash table */
  if( rc==SQLITE_OK ){
-    if( sqlite3Fts3HashInsert(&pHash->hash, "simple", 7, (void *)pSimple)
-     || sqlite3Fts3HashInsert(&pHash->hash, "porter", 7, (void *)pPorter) 
+    if( sqlite3Fts3HashInsert(pHash, "simple", 7, (void *)pSimple)
+     || sqlite3Fts3HashInsert(pHash, "porter", 7, (void *)pPorter) 

 #ifndef SQLITE_DISABLE_FTS3_UNICODE
-     || sqlite3Fts3HashInsert(&pHash->hash, "unicode61", 10, (void *)pUnicode) 
+     || sqlite3Fts3HashInsert(pHash, "unicode61", 10, (void *)pUnicode) 
 #endif
 #ifdef SQLITE_ENABLE_ICU
-     || (pIcu && sqlite3Fts3HashInsert(&pHash->hash, "icu", 4, (void *)pIcu))
+     || (pIcu && sqlite3Fts3HashInsert(pHash, "icu", 4, (void *)pIcu))
 #endif
    ){
      rc = SQLITE_NOMEM;
@@ -4102,7 +4099,7 @@ int sqlite3Fts3Init(sqlite3 *db){

 #ifdef SQLITE_TEST
  if( rc==SQLITE_OK ){
-    rc = sqlite3Fts3ExprInitTestInterface(db, &pHash->hash);
+    rc = sqlite3Fts3ExprInitTestInterface(db, pHash);
  }
 #endif

@@ -4111,26 +4108,23 @@ int sqlite3Fts3Init(sqlite3 *db){
  ** module with sqlite.
  */
  if( SQLITE_OK==rc 
-   && SQLITE_OK==(rc=sqlite3Fts3InitHashTable(db,&pHash->hash,"fts3_tokenizer"))
+   && SQLITE_OK==(rc = sqlite3Fts3InitHashTable(db, pHash, "fts3_tokenizer"))
   && SQLITE_OK==(rc = sqlite3_overload_function(db, "snippet", -1))
   && SQLITE_OK==(rc = sqlite3_overload_function(db, "offsets", 1))
   && SQLITE_OK==(rc = sqlite3_overload_function(db, "matchinfo", 1))
   && SQLITE_OK==(rc = sqlite3_overload_function(db, "matchinfo", 2))
   && SQLITE_OK==(rc = sqlite3_overload_function(db, "optimize", 1))
  ){
-    pHash->nRef++;
    rc = sqlite3_create_module_v2(
        db, "fts3", &fts3Module, (void *)pHash, hashDestroy
    );
    if( rc==SQLITE_OK ){
-      pHash->nRef++;
      rc = sqlite3_create_module_v2(
-          db, "fts4", &fts3Module, (void *)pHash, hashDestroy
+          db, "fts4", &fts3Module, (void *)pHash, 0
      );
    }
    if( rc==SQLITE_OK ){
-      pHash->nRef++;
-      rc = sqlite3Fts3InitTok(db, (void *)pHash, hashDestroy);
+      rc = sqlite3Fts3InitTok(db, (void *)pHash);
    }
    return rc;
  }
@@ -4139,7 +4133,7 @@ int sqlite3Fts3Init(sqlite3 *db){
  /* An error has occurred. Delete the hash table and return the error code. */
  assert( rc!=SQLITE_OK );
  if( pHash ){
-    sqlite3Fts3HashClear(&pHash->hash);
+    sqlite3Fts3HashClear(pHash);
    sqlite3_free(pHash);
  }
  return rc;
@@ -4308,7 +4302,8 @@ static int fts3EvalDeferredPhrase(Fts3Cursor *pCsr, Fts3Phrase *pPhrase){
  char *aPoslist = 0;             /* Position list for deferred tokens */
  int nPoslist = 0;               /* Number of bytes in aPoslist */
  int iPrev = -1;                 /* Token number of previous deferred token */
-  char *aFree = (pPhrase->doclist.bFreeList ? pPhrase->doclist.pList : 0);
+
+  assert( pPhrase->doclist.bFreeList==0 );

  for(iToken=0; iToken<pPhrase->nToken; iToken++){
    Fts3PhraseToken *pToken = &pPhrase->aToken[iToken];
@@ -4322,7 +4317,6 @@ static int fts3EvalDeferredPhrase(Fts3Cursor *pCsr, Fts3Phrase *pPhrase){

      if( pList==0 ){
        sqlite3_free(aPoslist);
-        sqlite3_free(aFree);
        pPhrase->doclist.pList = 0;
        pPhrase->doclist.nList = 0;
        return SQLITE_OK;
@@ -4343,7 +4337,6 @@ static int fts3EvalDeferredPhrase(Fts3Cursor *pCsr, Fts3Phrase *pPhrase){
        nPoslist = (int)(aOut - aPoslist);
        if( nPoslist==0 ){
          sqlite3_free(aPoslist);
-          sqlite3_free(aFree);
          pPhrase->doclist.pList = 0;
          pPhrase->doclist.nList = 0;
          return SQLITE_OK;
@@ -4376,14 +4369,13 @@ static int fts3EvalDeferredPhrase(Fts3Cursor *pCsr, Fts3Phrase *pPhrase){
        nDistance = iPrev - nMaxUndeferred;
      }

-      aOut = (char *)sqlite3Fts3MallocZero(nPoslist+FTS3_BUFFER_PADDING);
+      aOut = (char *)sqlite3_malloc(nPoslist+8);
      if( !aOut ){
        sqlite3_free(aPoslist);
        return SQLITE_NOMEM;
      }
      
      pPhrase->doclist.pList = aOut;
-      assert( p1 && p2 );
      if( fts3PoslistPhraseMerge(&aOut, nDistance, 0, 1, &p1, &p2) ){
        pPhrase->doclist.bFreeList = 1;
        pPhrase->doclist.nList = (int)(aOut - pPhrase->doclist.pList);
@@ -4396,7 +4388,6 @@ static int fts3EvalDeferredPhrase(Fts3Cursor *pCsr, Fts3Phrase *pPhrase){
    }
  }

-  if( pPhrase->doclist.pList!=aFree ) sqlite3_free(aFree);
  return SQLITE_OK;
 }
 #endif /* SQLITE_DISABLE_FTS4_DEFERRED */
@@ -4489,7 +4480,7 @@ void sqlite3Fts3DoclistPrev(

  assert( nDoclist>0 );
  assert( *pbEof==0 );
-  assert_fts3_nc( p || *piDocid==0 );
+  assert( p || *piDocid==0 );
  assert( !p || (p>aDoclist && p<&aDoclist[nDoclist]) );

  if( p==0 ){
@@ -5353,8 +5344,8 @@ static void fts3EvalNextRow(
        Fts3Expr *pRight = pExpr->pRight;
        sqlite3_int64 iCmp = DOCID_CMP(pLeft->iDocid, pRight->iDocid);

-        assert_fts3_nc( pLeft->bStart || pLeft->iDocid==pRight->iDocid );
-        assert_fts3_nc( pRight->bStart || pLeft->iDocid==pRight->iDocid );
+        assert( pLeft->bStart || pLeft->iDocid==pRight->iDocid );
+        assert( pRight->bStart || pLeft->iDocid==pRight->iDocid );

        if( pRight->bEof || (pLeft->bEof==0 && iCmp<0) ){
          fts3EvalNextRow(pCsr, pLeft, pRc);
@@ -5571,10 +5562,11 @@ static int fts3EvalTestExpr(

      default: {
 #ifndef SQLITE_DISABLE_FTS4_DEFERRED
-        if( pCsr->pDeferred && (pExpr->bDeferred || (
-            pExpr->iDocid==pCsr->iPrevId && pExpr->pPhrase->doclist.pList
-        ))){
+        if( pCsr->pDeferred 
+         && (pExpr->iDocid==pCsr->iPrevId || pExpr->bDeferred)
+        ){
          Fts3Phrase *pPhrase = pExpr->pPhrase;
+          assert( pExpr->bDeferred || pPhrase->doclist.bFreeList==0 );
          if( pExpr->bDeferred ){
            fts3EvalInvalidatePoslist(pPhrase);
          }
@@ -5991,9 +5983,6 @@ int sqlite3Fts3EvalPhrasePoslist(
        if( bEofSave==0 && pNear->iDocid==iDocid ) break;
      }
      assert( rc!=SQLITE_OK || pPhrase->bIncr==0 );
-      if( rc==SQLITE_OK && pNear->bEof!=bEofSave ){
-        rc = FTS_CORRUPT_VTAB;
-      }
    }
    if( bTreeEof ){
      while( rc==SQLITE_OK && !pNear->bEof ){
@@ -151,18 +151,17 @@ extern int sqlite3_fts3_may_be_corrupt;
 ** Macros indicating that conditional expressions are always true or
 ** false.
 */
-#if defined(SQLITE_COVERAGE_TEST) || defined(SQLITE_MUTATION_TEST)
-# define SQLITE_OMIT_AUXILIARY_SAFETY_CHECKS 1
-#endif
-#if defined(SQLITE_OMIT_AUXILIARY_SAFETY_CHECKS)
-# define ALWAYS(X)      (1)
-# define NEVER(X)       (0)
-#elif !defined(NDEBUG)
-# define ALWAYS(X)      ((X)?1:(assert(0),0))
-# define NEVER(X)       ((X)?(assert(0),1):0)
+#ifdef SQLITE_COVERAGE_TEST
+# define ALWAYS(x) (1)
+# define NEVER(X)  (0)
+#elif defined(SQLITE_DEBUG)
+# define ALWAYS(x) sqlite3Fts3Always((x)!=0)
+# define NEVER(x) sqlite3Fts3Never((x)!=0)
+int sqlite3Fts3Always(int b);
+int sqlite3Fts3Never(int b);
 #else
-# define ALWAYS(X)      (X)
-# define NEVER(X)       (X)
+# define ALWAYS(x) (x)
+# define NEVER(x)  (x)
 #endif

 /*
@@ -621,7 +620,6 @@ void sqlite3Fts3ExprFree(Fts3Expr *);
 int sqlite3Fts3ExprInitTestInterface(sqlite3 *db, Fts3Hash*);
 int sqlite3Fts3InitTerm(sqlite3 *db);
 #endif
-void *sqlite3Fts3MallocZero(i64 nByte);

 int sqlite3Fts3OpenTokenizer(sqlite3_tokenizer *, int, const char *, int,
  sqlite3_tokenizer_cursor **
@@ -641,7 +639,7 @@ int sqlite3Fts3MsrOvfl(Fts3Cursor *, Fts3MultiSegReader *, int *);
 int sqlite3Fts3MsrIncrRestart(Fts3MultiSegReader *pCsr);

 /* fts3_tokenize_vtab.c */
-int sqlite3Fts3InitTok(sqlite3*, Fts3Hash *, void(*xDestroy)(void*));
+int sqlite3Fts3InitTok(sqlite3*, Fts3Hash *);

 /* fts3_unicode2.c (functions generated by parsing unicode text files) */
 #ifndef SQLITE_DISABLE_FTS3_UNICODE
@@ -297,7 +297,6 @@ static int fts3auxNextMethod(sqlite3_vtab_cursor *pCursor){
    if( fts3auxGrowStatArray(pCsr, 2) ) return SQLITE_NOMEM;
    memset(pCsr->aStat, 0, sizeof(struct Fts3auxColstats) * pCsr->nStat);
    iCol = 0;
-    rc = SQLITE_OK;

    while( i<nDoclist ){
      sqlite3_int64 v = 0;
@@ -341,10 +340,6 @@ static int fts3auxNextMethod(sqlite3_vtab_cursor *pCursor){
        /* State 3. The integer just read is a column number. */
        default: assert( eState==3 );
          iCol = (int)v;
-          if( iCol<1 ){
-            rc = SQLITE_CORRUPT_VTAB;
-            break;
-          }
          if( fts3auxGrowStatArray(pCsr, iCol+2) ) return SQLITE_NOMEM;
          pCsr->aStat[iCol+1].nDoc++;
          eState = 2;
@@ -353,6 +348,7 @@ static int fts3auxNextMethod(sqlite3_vtab_cursor *pCursor){
    }

    pCsr->iCol = 0;
+    rc = SQLITE_OK;
  }else{
    pCsr->isEof = 1;
  }
@@ -122,7 +122,7 @@ static int fts3isspace(char c){
 ** zero the memory before returning a pointer to it. If unsuccessful, 
 ** return NULL.
 */
-void *sqlite3Fts3MallocZero(sqlite3_int64 nByte){
+static void *fts3MallocZero(sqlite3_int64 nByte){
  void *pRet = sqlite3_malloc64(nByte);
  if( pRet ) memset(pRet, 0, nByte);
  return pRet;
@@ -203,7 +203,7 @@ static int getNextToken(
    rc = pModule->xNext(pCursor, &zToken, &nToken, &iStart, &iEnd, &iPosition);
    if( rc==SQLITE_OK ){
      nByte = sizeof(Fts3Expr) + sizeof(Fts3Phrase) + nToken;
-      pRet = (Fts3Expr *)sqlite3Fts3MallocZero(nByte);
+      pRet = (Fts3Expr *)fts3MallocZero(nByte);
      if( !pRet ){
        rc = SQLITE_NOMEM;
      }else{
@@ -458,7 +458,7 @@ static int getNextNode(
      if( fts3isspace(cNext) 
       || cNext=='"' || cNext=='(' || cNext==')' || cNext==0
      ){
-        pRet = (Fts3Expr *)sqlite3Fts3MallocZero(sizeof(Fts3Expr));
+        pRet = (Fts3Expr *)fts3MallocZero(sizeof(Fts3Expr));
        if( !pRet ){
          return SQLITE_NOMEM;
        }
@@ -637,7 +637,7 @@ static int fts3ExprParse(
            && p->eType==FTSQUERY_PHRASE && pParse->isNot 
        ){
          /* Create an implicit NOT operator. */
-          Fts3Expr *pNot = sqlite3Fts3MallocZero(sizeof(Fts3Expr));
+          Fts3Expr *pNot = fts3MallocZero(sizeof(Fts3Expr));
          if( !pNot ){
            sqlite3Fts3ExprFree(p);
            rc = SQLITE_NOMEM;
@@ -671,7 +671,7 @@ static int fts3ExprParse(
            /* Insert an implicit AND operator. */
            Fts3Expr *pAnd;
            assert( pRet && pPrev );
-            pAnd = sqlite3Fts3MallocZero(sizeof(Fts3Expr));
+            pAnd = fts3MallocZero(sizeof(Fts3Expr));
            if( !pAnd ){
              sqlite3Fts3ExprFree(p);
              rc = SQLITE_NOMEM;
@@ -138,8 +138,9 @@ static MatchinfoBuffer *fts3MIBufferNew(size_t nElem, const char *zMatchinfo){
                           + sizeof(MatchinfoBuffer);
  sqlite3_int64 nStr = strlen(zMatchinfo);

-  pRet = sqlite3Fts3MallocZero(nByte + nStr+1);
+  pRet = sqlite3_malloc64(nByte + nStr+1);
  if( pRet ){
+    memset(pRet, 0, nByte);
    pRet->aMatchinfo[0] = (u8*)(&pRet->aMatchinfo[1]) - (u8*)pRet;
    pRet->aMatchinfo[1+nElem] = pRet->aMatchinfo[0]
                                      + sizeof(u32)*((int)nElem+1);
@@ -543,10 +544,11 @@ static int fts3BestSnippet(
  ** the required space using malloc().
  */
  nByte = sizeof(SnippetPhrase) * nList;
-  sIter.aPhrase = (SnippetPhrase *)sqlite3Fts3MallocZero(nByte);
+  sIter.aPhrase = (SnippetPhrase *)sqlite3_malloc64(nByte);
  if( !sIter.aPhrase ){
    return SQLITE_NOMEM;
  }
+  memset(sIter.aPhrase, 0, nByte);

  /* Initialize the contents of the SnippetIter object. Then iterate through
  ** the set of phrases in the expression to populate the aPhrase[] array.
@@ -1110,12 +1112,10 @@ static int fts3MatchinfoLcsCb(
 ** position list for the next column.
 */
 static int fts3LcsIteratorAdvance(LcsIterator *pIter){
-  char *pRead;
+  char *pRead = pIter->pRead;
  sqlite3_int64 iRead;
  int rc = 0;

-  if( NEVER(pIter==0) ) return 1;
-  pRead = pIter->pRead;
  pRead += sqlite3Fts3GetVarint(pRead, &iRead);
  if( iRead==0 || iRead==1 ){
    pRead = 0;
@@ -1149,8 +1149,9 @@ static int fts3MatchinfoLcs(Fts3Cursor *pCsr, MatchInfo *pInfo){
  /* Allocate and populate the array of LcsIterator objects. The array
  ** contains one element for each matchable phrase in the query.
  **/
-  aIter = sqlite3Fts3MallocZero(sizeof(LcsIterator) * pCsr->nPhrase);
+  aIter = sqlite3_malloc64(sizeof(LcsIterator) * pCsr->nPhrase);
  if( !aIter ) return SQLITE_NOMEM;
+  memset(aIter, 0, sizeof(LcsIterator) * pCsr->nPhrase);
  (void)fts3ExprIterate(pCsr->pExpr, fts3MatchinfoLcsCb, (void*)aIter);

  for(i=0; i<pInfo->nPhrase; i++){
@@ -1611,7 +1612,7 @@ void sqlite3Fts3Offsets(
  if( rc!=SQLITE_OK ) goto offsets_out;

  /* Allocate the array of TermOffset iterators. */
-  sCtx.aTerm = (TermOffset *)sqlite3Fts3MallocZero(sizeof(TermOffset)*nToken);
+  sCtx.aTerm = (TermOffset *)sqlite3_malloc64(sizeof(TermOffset)*nToken);
  if( 0==sCtx.aTerm ){
    rc = SQLITE_NOMEM;
    goto offsets_out;
@@ -1632,13 +1633,13 @@ void sqlite3Fts3Offsets(
    const char *zDoc;
    int nDoc;

-    /* Initialize the contents of sCtx.aTerm[] for column iCol. This 
-    ** operation may fail if the database contains corrupt records.
+    /* Initialize the contents of sCtx.aTerm[] for column iCol. There is 
+    ** no way that this operation can fail, so the return code from
+    ** fts3ExprIterate() can be discarded.
    */
    sCtx.iCol = iCol;
    sCtx.iTerm = 0;
-    rc = fts3ExprIterate(pCsr->pExpr, fts3ExprTermOffsetInit, (void*)&sCtx);
-    if( rc!=SQLITE_OK ) goto offsets_out;
+    (void)fts3ExprIterate(pCsr->pExpr, fts3ExprTermOffsetInit, (void*)&sCtx);

    /* Retreive the text stored in column iCol. If an SQL NULL is stored 
    ** in column iCol, jump immediately to the next iteration of the loop.
@@ -420,7 +420,7 @@ static int fts3tokRowidMethod(
 ** Register the fts3tok module with database connection db. Return SQLITE_OK
 ** if successful or an error code if sqlite3_create_module() fails.
 */
-int sqlite3Fts3InitTok(sqlite3 *db, Fts3Hash *pHash, void(*xDestroy)(void*)){
+int sqlite3Fts3InitTok(sqlite3 *db, Fts3Hash *pHash){
  static const sqlite3_module fts3tok_module = {
     0,                           /* iVersion      */
     fts3tokConnectMethod,        /* xCreate       */
@@ -449,9 +449,7 @@ int sqlite3Fts3InitTok(sqlite3 *db, Fts3Hash *pHash, void(*xDestroy)(void*)){
  };
  int rc;                         /* Return code */

-  rc = sqlite3_create_module_v2(
-      db, "fts3tokenize", &fts3tok_module, (void*)pHash, xDestroy
-  );
+  rc = sqlite3_create_module(db, "fts3tokenize", &fts3tok_module, (void*)pHash);
  return rc;
 }

@@ -1335,18 +1335,8 @@ static int fts3SegReaderNext(
        char *aCopy;
        PendingList *pList = (PendingList *)fts3HashData(pElem);
        int nCopy = pList->nData+1;
-
-        int nTerm = fts3HashKeysize(pElem);
-        if( (nTerm+1)>pReader->nTermAlloc ){
-          sqlite3_free(pReader->zTerm);
-          pReader->zTerm = (char*)sqlite3_malloc((nTerm+1)*2);
-          if( !pReader->zTerm ) return SQLITE_NOMEM;
-          pReader->nTermAlloc = (nTerm+1)*2;
-        }
-        memcpy(pReader->zTerm, fts3HashKey(pElem), nTerm);
-        pReader->zTerm[nTerm] = '\0';
-        pReader->nTerm = nTerm;
-
+        pReader->zTerm = (char *)fts3HashKey(pElem);
+        pReader->nTerm = fts3HashKeysize(pElem);
        aCopy = (char*)sqlite3_malloc(nCopy);
        if( !aCopy ) return SQLITE_NOMEM;
        memcpy(aCopy, pList->aData, nCopy);
@@ -1599,7 +1589,9 @@ int sqlite3Fts3MsrOvfl(
 */
 void sqlite3Fts3SegReaderFree(Fts3SegReader *pReader){
  if( pReader ){
-    sqlite3_free(pReader->zTerm);
+    if( !fts3SegReaderIsPending(pReader) ){
+      sqlite3_free(pReader->zTerm);
+    }
    if( !fts3SegReaderIsRootOnly(pReader) ){
      sqlite3_free(pReader->aNode);
    }
@@ -2011,8 +2003,8 @@ static int fts3PrefixCompress(
  int nNext                       /* Size of buffer zNext in bytes */
 ){
  int n;
-  for(n=0; n<nPrev && n<nNext && zPrev[n]==zNext[n]; n++);
-  assert_fts3_nc( n<nNext );
+  UNUSED_PARAMETER(nNext);
+  for(n=0; n<nPrev && zPrev[n]==zNext[n]; n++);
  return n;
 }

@@ -3011,7 +3003,7 @@ int sqlite3Fts3SegReaderStep(

          nByte = sqlite3Fts3VarintLen(iDelta) + (isRequirePos?nList+1:0);

-          rc = fts3GrowSegReaderBuffer(pCsr, nByte+nDoclist+FTS3_NODE_PADDING);
+          rc = fts3GrowSegReaderBuffer(pCsr, nByte+nDoclist);
          if( rc ) return rc;

          if( isFirst ){
@@ -3791,7 +3783,7 @@ static int nodeReaderNext(NodeReader *p){
      return FTS_CORRUPT_VTAB;
    }
    blobGrowBuffer(&p->term, nPrefix+nSuffix, &rc);
-    if( rc==SQLITE_OK && ALWAYS(p->term.a!=0) ){
+    if( rc==SQLITE_OK ){
      memcpy(&p->term.a[nPrefix], &p->aNode[p->iOff], nSuffix);
      p->term.n = nPrefix+nSuffix;
      p->iOff += nSuffix;
@@ -3899,8 +3891,6 @@ static int fts3IncrmergePush(
          pBlk->n += sqlite3Fts3PutVarint(&pBlk->a[pBlk->n], nPrefix);
        }
        pBlk->n += sqlite3Fts3PutVarint(&pBlk->a[pBlk->n], nSuffix);
-        assert( nPrefix+nSuffix<=nTerm );
-        assert( nPrefix>=0 );
        memcpy(&pBlk->a[pBlk->n], &zTerm[nPrefix], nSuffix);
        pBlk->n += nSuffix;

@@ -4023,7 +4013,6 @@ static int fts3IncrmergeAppend(
  pLeaf = &pWriter->aNodeWriter[0];
  nPrefix = fts3PrefixCompress(pLeaf->key.a, pLeaf->key.n, zTerm, nTerm);
  nSuffix = nTerm - nPrefix;
-  if(nSuffix<=0 ) return FTS_CORRUPT_VTAB;

  nSpace  = sqlite3Fts3VarintLen(nPrefix);
  nSpace += sqlite3Fts3VarintLen(nSuffix) + nSuffix;
@@ -4188,11 +4177,7 @@ static int fts3TermCmp(
  int nCmp = MIN(nLhs, nRhs);
  int res;

-  if( nCmp && ALWAYS(zLhs) && ALWAYS(zRhs) ){
-    res = memcmp(zLhs, zRhs, nCmp);
-  }else{
-    res = 0;
-  }
+  res = (nCmp ? memcmp(zLhs, zRhs, nCmp) : 0);
  if( res==0 ) res = nLhs - nRhs;

  return res;
@@ -4836,7 +4821,7 @@ static int fts3IncrmergeHintLoad(Fts3Table *p, Blob *pHint){
      if( aHint ){
        blobGrowBuffer(pHint, nHint, &rc);
        if( rc==SQLITE_OK ){
-          if( ALWAYS(pHint->a!=0) ) memcpy(pHint->a, aHint, nHint);
+          memcpy(pHint->a, aHint, nHint);
          pHint->n = nHint;
        }
      }
@@ -0,0 +1,115 @@
+#!/usr/bin/tclsh
+#
+# This script builds a single C code file holding all of FTS3 code.
+# The name of the output file is fts3amal.c.  To build this file,
+# first do:
+#
+#      make target_source
+#
+# The make target above moves all of the source code files into
+# a subdirectory named "tsrc".  (This script expects to find the files
+# there and will not work if they are not found.)
+#
+# After the "tsrc" directory has been created and populated, run
+# this script:
+#
+#      tclsh mkfts3amal.tcl
+#
+# The amalgamated FTS3 code will be written into fts3amal.c
+#
+
+# Open the output file and write a header comment at the beginning
+# of the file.
+#
+set out [open fts3amal.c w]
+set today [clock format [clock seconds] -format "%Y-%m-%d %H:%M:%S UTC" -gmt 1]
+puts $out [subst \
+{/******************************************************************************
+** This file is an amalgamation of separate C source files from the SQLite
+** Full Text Search extension 2 (fts3).  By combining all the individual C 
+** code  files into this single large file, the entire code can be compiled 
+** as a one translation unit.  This allows many compilers to do optimizations
+** that would not be possible if the files were compiled separately.  It also
+** makes the code easier to import into other projects.
+**
+** This amalgamation was generated on $today.
+*/}]
+
+# These are the header files used by FTS3.  The first time any of these 
+# files are seen in a #include statement in the C code, include the complete
+# text of the file in-line.  The file only needs to be included once.
+#
+foreach hdr {
+   fts3.h
+   fts3_hash.h
+   fts3_tokenizer.h
+   sqlite3.h
+   sqlite3ext.h
+} {
+  set available_hdr($hdr) 1
+}
+
+# 78 stars used for comment formatting.
+set s78 \
+{*****************************************************************************}
+
+# Insert a comment into the code
+#
+proc section_comment {text} {
+  global out s78
+  set n [string length $text]
+  set nstar [expr {60 - $n}]
+  set stars [string range $s78 0 $nstar]
+  puts $out "/************** $text $stars/"
+}
+
+# Read the source file named $filename and write it into the
+# sqlite3.c output file.  If any #include statements are seen,
+# process them approprately.
+#
+proc copy_file {filename} {
+  global seen_hdr available_hdr out
+  set tail [file tail $filename]
+  section_comment "Begin file $tail"
+  set in [open $filename r]
+  while {![eof $in]} {
+    set line [gets $in]
+    if {[regexp {^#\s*include\s+["<]([^">]+)[">]} $line all hdr]} {
+      if {[info exists available_hdr($hdr)]} {
+        if {$available_hdr($hdr)} {
+          section_comment "Include $hdr in the middle of $tail"
+          copy_file tsrc/$hdr
+          section_comment "Continuing where we left off in $tail"
+        }
+      } elseif {![info exists seen_hdr($hdr)]} {
+        set seen_hdr($hdr) 1
+        puts $out $line
+      }
+    } elseif {[regexp {^#ifdef __cplusplus} $line]} {
+      puts $out "#if 0"
+    } elseif {[regexp {^#line} $line]} {
+      # Skip #line directives.
+    } else {
+      puts $out $line
+    }
+  }
+  close $in
+  section_comment "End of $tail"
+}
+
+
+# Process the source files.  Process files containing commonly
+# used subroutines first in order to help the compiler find
+# inlining opportunities.
+#
+foreach file {
+   fts3.c
+   fts3_hash.c
+   fts3_porter.c
+   fts3_tokenizer.c
+   fts3_tokenizer1.c
+} {
+  copy_file tsrc/$file
+}
+
+close $out
@@ -35,20 +35,8 @@ typedef sqlite3_uint64 u64;
 #endif

 #define testcase(x)
-
-#if defined(SQLITE_COVERAGE_TEST) || defined(SQLITE_MUTATION_TEST)
-# define SQLITE_OMIT_AUXILIARY_SAFETY_CHECKS 1
-#endif
-#if defined(SQLITE_OMIT_AUXILIARY_SAFETY_CHECKS)
-# define ALWAYS(X)      (1)
-# define NEVER(X)       (0)
-#elif !defined(NDEBUG)
-# define ALWAYS(X)      ((X)?1:(assert(0),0))
-# define NEVER(X)       ((X)?(assert(0),1):0)
-#else
-# define ALWAYS(X)      (X)
-# define NEVER(X)       (X)
-#endif
+#define ALWAYS(x) 1
+#define NEVER(x) 0

 #define MIN(x,y) (((x) < (y)) ? (x) : (y))
 #define MAX(x,y) (((x) > (y)) ? (x) : (y))
@@ -108,7 +96,7 @@ extern int sqlite3_fts5_may_be_corrupt;
 ** A version of memcmp() that does not cause asan errors if one of the pointer
 ** parameters is NULL and the number of bytes to compare is zero.
 */
-#define fts5Memcmp(s1, s2, n) ((n)<=0 ? 0 : memcmp((s1), (s2), (n)))
+#define fts5Memcmp(s1, s2, n) ((n)==0 ? 0 : memcmp((s1), (s2), (n)))

 /* Mark a function parameter as unused, to suppress nuisance compiler
 ** warnings. */
@@ -286,7 +274,7 @@ void sqlite3Fts5BufferAppendPrintf(int *, Fts5Buffer*, char *zFmt, ...);
 char *sqlite3Fts5Mprintf(int *pRc, const char *zFmt, ...);

 #define fts5BufferZero(x)             sqlite3Fts5BufferZero(x)
-#define fts5BufferAppendVarint(a,b,c) sqlite3Fts5BufferAppendVarint(a,b,(i64)c)
+#define fts5BufferAppendVarint(a,b,c) sqlite3Fts5BufferAppendVarint(a,b,c)
 #define fts5BufferFree(a)             sqlite3Fts5BufferFree(a)
 #define fts5BufferAppendBlob(a,b,c,d) sqlite3Fts5BufferAppendBlob(a,b,c,d)
 #define fts5BufferSet(a,b,c,d)        sqlite3Fts5BufferSet(a,b,c,d)
@@ -447,9 +435,6 @@ void sqlite3Fts5IndexCloseReader(Fts5Index*);
 */
 const char *sqlite3Fts5IterTerm(Fts5IndexIter*, int*);
 int sqlite3Fts5IterNextScan(Fts5IndexIter*);
-void *sqlite3Fts5StructureRef(Fts5Index*);
-void sqlite3Fts5StructureRelease(void*);
-int sqlite3Fts5StructureTest(Fts5Index*, void*);


 /*
@@ -66,6 +66,7 @@ void sqlite3Fts5BufferAppendBlob(
  u32 nData, 
  const u8 *pData
 ){
+  assert_nc( *pRc || nData>=0 );
  if( nData ){
    if( fts5BufferGrow(pRc, pBuf, nData) ) return;
    memcpy(&pBuf->p[pBuf->n], pData, nData);
@@ -175,7 +176,7 @@ int sqlite3Fts5PoslistNext64(
    return 1;  
  }else{
    i64 iOff = *piOff;
-    u32 iVal;
+    int iVal;
    fts5FastGetVarint32(a, i, iVal);
    if( iVal<=1 ){
      if( iVal==0 ){
@@ -184,19 +185,15 @@ int sqlite3Fts5PoslistNext64(
      }
      fts5FastGetVarint32(a, i, iVal);
      iOff = ((i64)iVal) << 32;
-      assert( iOff>=0 );
      fts5FastGetVarint32(a, i, iVal);
      if( iVal<2 ){
        /* This is a corrupt record. So stop parsing it here. */
        *piOff = -1;
        return 1;
      }
-      *piOff = iOff + ((iVal-2) & 0x7FFFFFFF);
-    }else{
-      *piOff = (iOff & (i64)0x7FFFFFFF<<32)+((iOff + (iVal-2)) & 0x7FFFFFFF);
    }
+    *piOff = iOff + ((iVal-2) & 0x7FFFFFFF);
    *pi = i;
-    assert_nc( *piOff>=iOff );
    return 0;
  }
 }
@@ -235,16 +232,14 @@ void sqlite3Fts5PoslistSafeAppend(
  i64 *piPrev, 
  i64 iPos
 ){
-  if( iPos>=*piPrev ){
-    static const i64 colmask = ((i64)(0x7FFFFFFF)) << 32;
-    if( (iPos & colmask) != (*piPrev & colmask) ){
-      pBuf->p[pBuf->n++] = 1;
-      pBuf->n += sqlite3Fts5PutVarint(&pBuf->p[pBuf->n], (iPos>>32));
-      *piPrev = (iPos & colmask);
-    }
-    pBuf->n += sqlite3Fts5PutVarint(&pBuf->p[pBuf->n], (iPos-*piPrev)+2);
-    *piPrev = iPos;
+  static const i64 colmask = ((i64)(0x7FFFFFFF)) << 32;
+  if( (iPos & colmask) != (*piPrev & colmask) ){
+    pBuf->p[pBuf->n++] = 1;
+    pBuf->n += sqlite3Fts5PutVarint(&pBuf->p[pBuf->n], (iPos>>32));
+    *piPrev = (iPos & colmask);
  }
+  pBuf->n += sqlite3Fts5PutVarint(&pBuf->p[pBuf->n], (iPos-*piPrev)+2);
+  *piPrev = iPos;
 }

 int sqlite3Fts5PoslistWriterAppend(
@@ -562,7 +562,6 @@ int sqlite3Fts5ConfigParse(
    z = fts5ConfigSkipWhitespace(z);
    if( z && *z=='=' ){
      bOption = 1;
-      assert( zOne!=0 );
      z++;
      if( bMustBeCol ) z = 0;
    }
@@ -579,11 +578,7 @@ int sqlite3Fts5ConfigParse(
        rc = SQLITE_ERROR;
      }else{
        if( bOption ){
-          rc = fts5ConfigParseSpecial(pGlobal, pRet, 
-            ALWAYS(zOne)?zOne:"",
-            zTwo?zTwo:"",
-            pzErr
-          );
+          rc = fts5ConfigParseSpecial(pGlobal, pRet, zOne, zTwo?zTwo:"", pzErr);
        }else{
          rc = fts5ConfigParseColumn(pRet, zOne, zTwo, pzErr);
          zOne = 0;
@@ -135,7 +135,6 @@ void sqlite3Fts5ParseError(Fts5Parse *pParse, const char *zFmt, ...){
  va_list ap;
  va_start(ap, zFmt);
  if( pParse->rc==SQLITE_OK ){
-    assert( pParse->zErr==0 );
    pParse->zErr = sqlite3_vmprintf(zFmt, ap);
    pParse->rc = SQLITE_ERROR;
  }
@@ -434,7 +433,6 @@ static i64 fts5ExprSynonymRowid(Fts5ExprTerm *pTerm, int bDesc, int *pbEof){
  int bRetValid = 0;
  Fts5ExprTerm *p;

-  assert( pTerm );
  assert( pTerm->pSynonym );
  assert( bDesc==0 || bDesc==1 );
  for(p=pTerm; p; p=p->pSynonym){
@@ -1627,9 +1625,6 @@ Fts5ExprNearset *sqlite3Fts5ParseNearset(
  }else{
    if( pRet->nPhrase>0 ){
      Fts5ExprPhrase *pLast = pRet->apPhrase[pRet->nPhrase-1];
-      assert( pParse!=0 );
-      assert( pParse->apPhrase!=0 );
-      assert( pParse->nPhrase>=2 );
      assert( pLast==pParse->apPhrase[pParse->nPhrase-2] );
      if( pPhrase->nTerm==0 ){
        fts5ExprPhraseFree(pPhrase);
@@ -1878,7 +1873,7 @@ int sqlite3Fts5ExprClonePhrase(
    sCtx.pPhrase = sqlite3Fts5MallocZero(&rc, sizeof(Fts5ExprPhrase));
  }

-  if( rc==SQLITE_OK && ALWAYS(sCtx.pPhrase) ){
+  if( rc==SQLITE_OK ){
    /* All the allocations succeeded. Put the expression object together. */
    pNew->pIndex = pExpr->pIndex;
    pNew->pConfig = pExpr->pConfig;
@@ -2149,8 +2144,9 @@ void sqlite3Fts5ParseSetColset(
 ){
  Fts5Colset *pFree = pColset;
  if( pParse->pConfig->eDetail==FTS5_DETAIL_NONE ){
-    sqlite3Fts5ParseError(pParse, 
-        "fts5: column queries are not supported (detail=none)"
+    pParse->rc = SQLITE_ERROR;
+    pParse->zErr = sqlite3_mprintf(
+      "fts5: column queries are not supported (detail=none)"
    );
  }else{
    fts5ParseSetColset(pParse, pExpr, pColset, &pFree);
@@ -2324,10 +2320,13 @@ Fts5ExprNode *sqlite3Fts5ParseNode(
                || pPhrase->nTerm>1
                || (pPhrase->nTerm>0 && pPhrase->aTerm[0].bFirst)
              ){
-              sqlite3Fts5ParseError(pParse, 
+              assert( pParse->rc==SQLITE_OK );
+              pParse->rc = SQLITE_ERROR;
+              assert( pParse->zErr==0 );
+              pParse->zErr = sqlite3_mprintf(
                  "fts5: %s queries are not supported (detail!=full)", 
                  pNear->nPhrase==1 ? "phrase": "NEAR"
-              );
+                  );
              sqlite3_free(pRet);
              pRet = 0;
            }
@@ -2859,15 +2858,6 @@ struct Fts5PoslistPopulator {
  int bMiss;
 };

-/*
-** Clear the position lists associated with all phrases in the expression
-** passed as the first argument. Argument bLive is true if the expression
-** might be pointing to a real entry, otherwise it has just been reset.
-**
-** At present this function is only used for detail=col and detail=none
-** fts5 tables. This implies that all phrases must be at most 1 token
-** in size, as phrase matches are not supported without detail=full.
-*/
 Fts5PoslistPopulator *sqlite3Fts5ExprClearPoslists(Fts5Expr *pExpr, int bLive){
  Fts5PoslistPopulator *pRet;
  pRet = sqlite3_malloc64(sizeof(Fts5PoslistPopulator)*pExpr->nPhrase);
@@ -2877,7 +2867,7 @@ Fts5PoslistPopulator *sqlite3Fts5ExprClearPoslists(Fts5Expr *pExpr, int bLive){
    for(i=0; i<pExpr->nPhrase; i++){
      Fts5Buffer *pBuf = &pExpr->apExprPhrase[i]->poslist;
      Fts5ExprNode *pNode = pExpr->apExprPhrase[i]->pNode;
-      assert( pExpr->apExprPhrase[i]->nTerm<=1 );
+      assert( pExpr->apExprPhrase[i]->nTerm==1 );
      if( bLive && 
          (pBuf->n==0 || pNode->iRowid!=pExpr->pRoot->iRowid || pNode->bEof)
      ){
@@ -356,7 +356,7 @@ int sqlite3Fts5HashWrite(
      p->bContent = 1;
    }else{
      /* Append a new column value, if necessary */
-      assert_nc( iCol>=p->iCol );
+      assert( iCol>=p->iCol );
      if( iCol!=p->iCol ){
        if( pHash->eDetail==FTS5_DETAIL_FULL ){
          pPtr[p->nData++] = 0x01;
@@ -296,7 +296,7 @@ struct Fts5Index {
  sqlite3_stmt *pWriter;          /* "INSERT ... %_data VALUES(?,?)" */
  sqlite3_stmt *pDeleter;         /* "DELETE FROM %_data ... id>=? AND id<=?" */
  sqlite3_stmt *pIdxWriter;       /* "INSERT ... %_idx VALUES(?,?,?,?)" */
-  sqlite3_stmt *pIdxDeleter;      /* "DELETE FROM %_idx WHERE segid=?" */
+  sqlite3_stmt *pIdxDeleter;      /* "DELETE FROM %_idx WHERE segid=? */
  sqlite3_stmt *pIdxSelect;
  int nRead;                      /* Total number of blocks read */

@@ -600,11 +600,8 @@ static int fts5BufferCompareBlob(
 **     res = *pLeft - *pRight
 */
 static int fts5BufferCompare(Fts5Buffer *pLeft, Fts5Buffer *pRight){
-  int nCmp, res;
-  nCmp = MIN(pLeft->n, pRight->n);
-  assert( nCmp<=0 || pLeft->p!=0 );
-  assert( nCmp<=0 || pRight->p!=0 );
-  res = fts5Memcmp(pLeft->p, pRight->p, nCmp);
+  int nCmp = MIN(pLeft->n, pRight->n);
+  int res = fts5Memcmp(pLeft->p, pRight->p, nCmp);
  return (res==0 ? (pLeft->n - pRight->n) : res);
 }

@@ -700,7 +697,6 @@ static Fts5Data *fts5DataRead(Fts5Index *p, i64 iRowid){
  return pRet;
 }

-
 /*
 ** Release a reference to data record returned by an earlier call to
 ** fts5DataRead().
@@ -825,58 +821,6 @@ static void fts5StructureRef(Fts5Structure *pStruct){
  pStruct->nRef++;
 }

-void *sqlite3Fts5StructureRef(Fts5Index *p){
-  fts5StructureRef(p->pStruct);
-  return (void*)p->pStruct;
-}
-void sqlite3Fts5StructureRelease(void *p){
-  if( p ){
-    fts5StructureRelease((Fts5Structure*)p);
-  }
-}
-int sqlite3Fts5StructureTest(Fts5Index *p, void *pStruct){
-  if( p->pStruct!=(Fts5Structure*)pStruct ){
-    return SQLITE_ABORT;
-  }
-  return SQLITE_OK;
-}
-
-/*
-** Ensure that structure object (*pp) is writable.
-**
-** This function is a no-op if (*pRc) is not SQLITE_OK when it is called. If
-** an error occurs, (*pRc) is set to an SQLite error code before returning.
-*/
-static void fts5StructureMakeWritable(int *pRc, Fts5Structure **pp){
-  Fts5Structure *p = *pp;
-  if( *pRc==SQLITE_OK && p->nRef>1 ){
-    i64 nByte = sizeof(Fts5Structure)+(p->nLevel-1)*sizeof(Fts5StructureLevel);
-    Fts5Structure *pNew;
-    pNew = (Fts5Structure*)sqlite3Fts5MallocZero(pRc, nByte);
-    if( pNew ){
-      int i;
-      memcpy(pNew, p, nByte);
-      for(i=0; i<p->nLevel; i++) pNew->aLevel[i].aSeg = 0;
-      for(i=0; i<p->nLevel; i++){
-        Fts5StructureLevel *pLvl = &pNew->aLevel[i];
-        nByte = sizeof(Fts5StructureSegment) * pNew->aLevel[i].nSeg;
-        pLvl->aSeg = (Fts5StructureSegment*)sqlite3Fts5MallocZero(pRc, nByte);
-        if( pLvl->aSeg==0 ){
-          for(i=0; i<p->nLevel; i++){
-            sqlite3_free(pNew->aLevel[i].aSeg);
-          }
-          sqlite3_free(pNew);
-          return;
-        }
-        memcpy(pLvl->aSeg, p->aLevel[i].aSeg, nByte);
-      }
-      p->nRef--;
-      pNew->nRef = 1;
-    }
-    *pp = pNew;
-  }
-}
-
 /*
 ** Deserialize and return the structure record currently stored in serialized
 ** form within buffer pData/nData.
@@ -978,11 +922,9 @@ static int fts5StructureDecode(
 }

 /*
-** Add a level to the Fts5Structure.aLevel[] array of structure object
-** (*ppStruct).
+**
 */
 static void fts5StructureAddLevel(int *pRc, Fts5Structure **ppStruct){
-  fts5StructureMakeWritable(pRc, ppStruct);
  if( *pRc==SQLITE_OK ){
    Fts5Structure *pStruct = *ppStruct;
    int nLevel = pStruct->nLevel;
@@ -1776,7 +1718,6 @@ static void fts5SegIterInit(

  if( p->rc==SQLITE_OK ){
    pIter->iLeafOffset = 4;
-    assert( pIter->pLeaf!=0 );
    assert_nc( pIter->pLeaf->nn>4 );
    assert_nc( fts5LeafFirstTermOff(pIter->pLeaf)==4 );
    pIter->iPgidxOff = pIter->pLeaf->szLeaf+1;
@@ -1879,12 +1820,8 @@ static void fts5SegIterReverseNewPage(Fts5Index *p, Fts5SegIter *pIter){
        int iRowidOff;
        iRowidOff = fts5LeafFirstRowidOff(pNew);
        if( iRowidOff ){
-          if( iRowidOff>=pNew->szLeaf ){
-            p->rc = FTS5_CORRUPT;
-          }else{
-            pIter->pLeaf = pNew;
-            pIter->iLeafOffset = iRowidOff;
-          }
+          pIter->pLeaf = pNew;
+          pIter->iLeafOffset = iRowidOff;
        }
      }

@@ -2164,7 +2101,7 @@ static void fts5SegIterReverse(Fts5Index *p, Fts5SegIter *pIter){
  if( pDlidx ){
    int iSegid = pIter->pSeg->iSegid;
    pgnoLast = fts5DlidxIterPgno(pDlidx);
-    pLast = fts5LeafRead(p, FTS5_SEGMENT_ROWID(iSegid, pgnoLast));
+    pLast = fts5DataRead(p, FTS5_SEGMENT_ROWID(iSegid, pgnoLast));
  }else{
    Fts5Data *pLeaf = pIter->pLeaf;         /* Current leaf data */

@@ -2191,7 +2128,7 @@ static void fts5SegIterReverse(Fts5Index *p, Fts5SegIter *pIter){
      ** forward to find the page containing the last rowid.  */
      for(pgno=pIter->iLeafPgno+1; !p->rc && pgno<=pSeg->pgnoLast; pgno++){
        i64 iAbs = FTS5_SEGMENT_ROWID(pSeg->iSegid, pgno);
-        Fts5Data *pNew = fts5LeafRead(p, iAbs);
+        Fts5Data *pNew = fts5DataRead(p, iAbs);
        if( pNew ){
          int iRowid, bTermless;
          iRowid = fts5LeafFirstRowidOff(pNew);
@@ -2222,10 +2159,6 @@ static void fts5SegIterReverse(Fts5Index *p, Fts5SegIter *pIter){
    pIter->pLeaf = pLast;
    pIter->iLeafPgno = pgnoLast;
    iOff = fts5LeafFirstRowidOff(pLast);
-    if( iOff>pLast->szLeaf ){
-      p->rc = FTS5_CORRUPT;
-      return;
-    }
    iOff += fts5GetVarint(&pLast->p[iOff], (u64*)&pIter->iRowid);
    pIter->iLeafOffset = iOff;

@@ -2234,6 +2167,7 @@ static void fts5SegIterReverse(Fts5Index *p, Fts5SegIter *pIter){
    }else{
      pIter->iEndofDoclist = fts5LeafFirstTermOff(pLast);
    }
+
  }

  fts5SegIterReverseInitPage(p, pIter);
@@ -2285,20 +2219,21 @@ static void fts5LeafSeek(
  Fts5SegIter *pIter,             /* Iterator to seek */
  const u8 *pTerm, int nTerm      /* Term to search for */
 ){
-  u32 iOff;
+  int iOff;
  const u8 *a = pIter->pLeaf->p;
-  u32 n = (u32)pIter->pLeaf->nn;
+  int szLeaf = pIter->pLeaf->szLeaf;
+  int n = pIter->pLeaf->nn;

  u32 nMatch = 0;
  u32 nKeep = 0;
  u32 nNew = 0;
  u32 iTermOff;
-  u32 iPgidx;                     /* Current offset in pgidx */
+  int iPgidx;                     /* Current offset in pgidx */
  int bEndOfPage = 0;

  assert( p->rc==SQLITE_OK );

-  iPgidx = (u32)pIter->pLeaf->szLeaf;
+  iPgidx = szLeaf;
  iPgidx += fts5GetVarint32(&a[iPgidx], iTermOff);
  iOff = iTermOff;
  if( iOff>n ){
@@ -2364,15 +2299,15 @@ static void fts5LeafSeek(
      if( pIter->pLeaf==0 ) return;
      a = pIter->pLeaf->p;
      if( fts5LeafIsTermless(pIter->pLeaf)==0 ){
-        iPgidx = (u32)pIter->pLeaf->szLeaf;
+        iPgidx = pIter->pLeaf->szLeaf;
        iPgidx += fts5GetVarint32(&pIter->pLeaf->p[iPgidx], iOff);
-        if( iOff<4 || (i64)iOff>=pIter->pLeaf->szLeaf ){
+        if( iOff<4 || iOff>=pIter->pLeaf->szLeaf ){
          p->rc = FTS5_CORRUPT;
          return;
        }else{
          nKeep = 0;
          iTermOff = iOff;
-          n = (u32)pIter->pLeaf->nn;
+          n = pIter->pLeaf->nn;
          iOff += fts5GetVarint32(&a[iOff], nNew);
          break;
        }
@@ -2740,7 +2675,7 @@ static void fts5SegIterGotoPage(
    fts5SegIterNextPage(p, pIter);
    assert( p->rc!=SQLITE_OK || pIter->iLeafPgno==iLeafPgno );

-    if( p->rc==SQLITE_OK && ALWAYS(pIter->pLeaf!=0) ){
+    if( p->rc==SQLITE_OK ){
      int iOff;
      u8 *a = pIter->pLeaf->p;
      int n = pIter->pLeaf->szLeaf;
@@ -3172,11 +3107,7 @@ static void fts5SegiterPoslist(
  Fts5Colset *pColset,
  Fts5Buffer *pBuf
 ){
-  assert( pBuf!=0 );
-  assert( pSeg!=0 );
  if( 0==fts5BufferGrow(&p->rc, pBuf, pSeg->nPos+FTS5_DATA_ZERO_PADDING) ){
-    assert( pBuf->p!=0 );
-    assert( pBuf->nSpace >= pBuf->n+pSeg->nPos+FTS5_DATA_ZERO_PADDING );
    memset(&pBuf->p[pBuf->n+pSeg->nPos], 0, FTS5_DATA_ZERO_PADDING);
    if( pColset==0 ){
      fts5ChunkIterate(p, pSeg, (void*)pBuf, fts5PoslistCallback);
@@ -3252,7 +3183,7 @@ static void fts5IndexExtractColset(
        }
        fts5BufferSafeAppendBlob(&pIter->poslist, aCopy, p-aCopy);
      }
-      if( p>=pEnd ){
+      if( p==pEnd ){
        pIter->base.pData = pIter->poslist.p;
        pIter->base.nData = pIter->poslist.n;
        return;
@@ -3400,7 +3331,6 @@ static void fts5IterSetOutputs_Full(Fts5Iter *pIter, Fts5SegIter *pSeg){
 }

 static void fts5IterSetOutputCb(int *pRc, Fts5Iter *pIter){
-  assert( pIter!=0 || (*pRc)!=SQLITE_OK );
  if( *pRc==SQLITE_OK ){
    Fts5Config *pConfig = pIter->pIndex->pConfig;
    if( pConfig->eDetail==FTS5_DETAIL_NONE ){
@@ -3472,10 +3402,7 @@ static void fts5MultiIterNew(
    }
  }
  *ppOut = pNew = fts5MultiIterAlloc(p, nSeg);
-  if( pNew==0 ){
-    assert( p->rc!=SQLITE_OK );
-    goto fts5MultiIterNew_post_check;
-  }
+  if( pNew==0 ) return;
  pNew->bRev = (0!=(flags & FTS5INDEX_QUERY_DESC));
  pNew->bSkipEmpty = (0!=(flags & FTS5INDEX_QUERY_SKIPEMPTY));
  pNew->pColset = pColset;
@@ -3539,10 +3466,6 @@ static void fts5MultiIterNew(
    fts5MultiIterFree(pNew);
    *ppOut = 0;
  }
-
-fts5MultiIterNew_post_check:
-  assert( (*ppOut)!=0 || p->rc!=SQLITE_OK );
-  return;
 }

 /*
@@ -3590,8 +3513,7 @@ static void fts5MultiIterNew2(
 ** False otherwise.
 */
 static int fts5MultiIterEof(Fts5Index *p, Fts5Iter *pIter){
-  assert( pIter!=0 || p->rc!=SQLITE_OK );
-  assert( p->rc!=SQLITE_OK
+  assert( p->rc 
      || (pIter->aSeg[ pIter->aFirst[1].iFirst ].pLeaf==0)==pIter->base.bEof 
  );
  return (p->rc || pIter->base.bEof);
@@ -4087,9 +4009,7 @@ static void fts5WriteAppendRowid(
      fts5BufferAppendVarint(&p->rc, &pPage->buf, iRowid);
    }else{
      assert_nc( p->rc || iRowid>pWriter->iPrevRowid );
-      fts5BufferAppendVarint(&p->rc, &pPage->buf, 
-          (u64)iRowid - (u64)pWriter->iPrevRowid
-      );
+      fts5BufferAppendVarint(&p->rc, &pPage->buf, iRowid - pWriter->iPrevRowid);
    }
    pWriter->iPrevRowid = iRowid;
    pWriter->bFirstRowidInDoclist = 0;
@@ -4397,7 +4317,6 @@ static void fts5IndexMergeLevel(
  ** and last leaf page number at the same time.  */
  fts5WriteFinish(p, &writer, &pSeg->pgnoLast);

-  assert( pIter!=0 || p->rc!=SQLITE_OK );
  if( fts5MultiIterEof(p, pIter) ){
    int i;

@@ -4498,7 +4417,7 @@ static void fts5IndexAutomerge(
  Fts5Structure **ppStruct,       /* IN/OUT: Current structure of index */
  int nLeaf                       /* Number of output leaves just written */
 ){
-  if( p->rc==SQLITE_OK && p->pConfig->nAutomerge>0 && ALWAYS((*ppStruct)!=0) ){
+  if( p->rc==SQLITE_OK && p->pConfig->nAutomerge>0 ){
    Fts5Structure *pStruct = *ppStruct;
    u64 nWrite;                   /* Initial value of write-counter */
    int nWork;                    /* Number of work-quanta to perform */
@@ -4853,7 +4772,7 @@ int sqlite3Fts5IndexMerge(Fts5Index *p, int nMerge){

 static void fts5AppendRowid(
  Fts5Index *p,
-  u64 iDelta,
+  i64 iDelta,
  Fts5Iter *pUnused,
  Fts5Buffer *pBuf
 ){
@@ -4863,7 +4782,7 @@ static void fts5AppendRowid(

 static void fts5AppendPoslist(
  Fts5Index *p,
-  u64 iDelta,
+  i64 iDelta,
  Fts5Iter *pMulti,
  Fts5Buffer *pBuf
 ){
@@ -4938,10 +4857,10 @@ static void fts5MergeAppendDocid(
 }
 #endif

-#define fts5MergeAppendDocid(pBuf, iLastRowid, iRowid) {                 \
-  assert( (pBuf)->n!=0 || (iLastRowid)==0 );                             \
-  fts5BufferSafeAppendVarint((pBuf), (u64)(iRowid) - (u64)(iLastRowid)); \
-  (iLastRowid) = (iRowid);                                               \
+#define fts5MergeAppendDocid(pBuf, iLastRowid, iRowid) {       \
+  assert( (pBuf)->n!=0 || (iLastRowid)==0 );                   \
+  fts5BufferSafeAppendVarint((pBuf), (iRowid) - (iLastRowid)); \
+  (iLastRowid) = (iRowid);                                     \
 }

 /*
@@ -5060,7 +4979,7 @@ static void fts5MergePrefixLists(
  Fts5Buffer *aBuf                /* Other lists to merge in */ 
 ){
 #define fts5PrefixMergerNextPosition(p) \
-  sqlite3Fts5PoslistNext64((p)->aPos,(p)->iter.nPoslist,&(p)->iOff,&(p)->iPos)
+  sqlite3Fts5PoslistNext64((p)->aPos,(p)->iter.nPoslist,&(p)->iOff,&(p)->iPos);
 #define FTS5_MERGE_NLIST 16
  PrefixMerger aMerger[FTS5_MERGE_NLIST];
  PrefixMerger *pHead = 0;
@@ -5212,7 +5131,7 @@ static void fts5SetupPrefixIter(
  int nMerge = 1;

  void (*xMerge)(Fts5Index*, Fts5Buffer*, int, Fts5Buffer*);
-  void (*xAppend)(Fts5Index*, u64, Fts5Iter*, Fts5Buffer*);
+  void (*xAppend)(Fts5Index*, i64, Fts5Iter*, Fts5Buffer*);
  if( p->pConfig->eDetail==FTS5_DETAIL_NONE ){
    xMerge = fts5MergeRowidLists;
    xAppend = fts5AppendRowid;
@@ -5251,7 +5170,7 @@ static void fts5SetupPrefixIter(
        Fts5SegIter *pSeg = &p1->aSeg[ p1->aFirst[1].iFirst ];
        p1->xSetOutputs(p1, pSeg);
        if( p1->base.nData ){
-          xAppend(p, (u64)p1->base.iRowid-(u64)iLastRowid, p1, &doclist);
+          xAppend(p, p1->base.iRowid-iLastRowid, p1, &doclist);
          iLastRowid = p1->base.iRowid;
        }
      }
@@ -5299,7 +5218,7 @@ static void fts5SetupPrefixIter(
        iLastRowid = 0;
      }

-      xAppend(p, (u64)p1->base.iRowid-(u64)iLastRowid, p1, &doclist);
+      xAppend(p, p1->base.iRowid-iLastRowid, p1, &doclist);
      iLastRowid = p1->base.iRowid;
    }

@@ -5567,7 +5486,7 @@ int sqlite3Fts5IndexQuery(
  if( sqlite3Fts5BufferSize(&p->rc, &buf, nToken+1)==0 ){
    int iIdx = 0;                 /* Index to search */
    int iPrefixIdx = 0;           /* +1 prefix index */
-    if( nToken>0 ) memcpy(&buf.p[1], pToken, nToken);
+    if( nToken ) memcpy(&buf.p[1], pToken, nToken);

    /* Figure out which index to search and set iIdx accordingly. If this
    ** is a prefix query for which there is no prefix index, set iIdx to
@@ -5608,15 +5527,11 @@ int sqlite3Fts5IndexQuery(
      /* Scan multiple terms in the main index */
      int bDesc = (flags & FTS5INDEX_QUERY_DESC)!=0;
      fts5SetupPrefixIter(p, bDesc, iPrefixIdx, buf.p, nToken+1, pColset,&pRet);
-      if( pRet==0 ){
-        assert( p->rc!=SQLITE_OK );
-      }else{
-        assert( pRet->pColset==0 );
-        fts5IterSetOutputCb(&p->rc, pRet);
-        if( p->rc==SQLITE_OK ){
-          Fts5SegIter *pSeg = &pRet->aSeg[pRet->aFirst[1].iFirst];
-          if( pSeg->pLeaf ) pRet->xSetOutputs(pRet, pSeg);
-        }
+      assert( p->rc!=SQLITE_OK || pRet->pColset==0 );
+      fts5IterSetOutputCb(&p->rc, pRet);
+      if( p->rc==SQLITE_OK ){
+        Fts5SegIter *pSeg = &pRet->aSeg[pRet->aFirst[1].iFirst];
+        if( pSeg->pLeaf ) pRet->xSetOutputs(pRet, pSeg);
      }
    }

@@ -5864,7 +5779,7 @@ static int fts5QueryCksum(
  Fts5IndexIter *pIter = 0;
  int rc = sqlite3Fts5IndexQuery(p, z, n, flags, 0, &pIter);

-  while( rc==SQLITE_OK && ALWAYS(pIter!=0) && 0==sqlite3Fts5IterEof(pIter) ){
+  while( rc==SQLITE_OK && 0==sqlite3Fts5IterEof(pIter) ){
    i64 rowid = pIter->iRowid;

    if( eDetail==FTS5_DETAIL_NONE ){
@@ -6229,7 +6144,6 @@ int sqlite3Fts5IndexIntegrityCheck(Fts5Index *p, u64 cksum, int bUseCksum){
  Fts5Buffer poslist = {0,0,0};   /* Buffer used to hold a poslist */
  Fts5Iter *pIter;                /* Used to iterate through entire index */
  Fts5Structure *pStruct;         /* Index structure */
-  int iLvl, iSeg;

 #ifdef SQLITE_DEBUG
  /* Used by extra internal tests only run if NDEBUG is not defined */
@@ -6240,16 +6154,15 @@ int sqlite3Fts5IndexIntegrityCheck(Fts5Index *p, u64 cksum, int bUseCksum){
  
  /* Load the FTS index structure */
  pStruct = fts5StructureRead(p);
-  if( pStruct==0 ){
-    assert( p->rc!=SQLITE_OK );
-    return fts5IndexReturn(p);
-  }

  /* Check that the internal nodes of each segment match the leaves */
-  for(iLvl=0; iLvl<pStruct->nLevel; iLvl++){
-    for(iSeg=0; iSeg<pStruct->aLevel[iLvl].nSeg; iSeg++){
-      Fts5StructureSegment *pSeg = &pStruct->aLevel[iLvl].aSeg[iSeg];
-      fts5IndexIntegrityCheckSegment(p, pSeg);
+  if( pStruct ){
+    int iLvl, iSeg;
+    for(iLvl=0; iLvl<pStruct->nLevel; iLvl++){
+      for(iSeg=0; iSeg<pStruct->aLevel[iLvl].nSeg; iSeg++){
+        Fts5StructureSegment *pSeg = &pStruct->aLevel[iLvl].aSeg[iSeg];
+        fts5IndexIntegrityCheckSegment(p, pSeg);
+      }
    }
  }

@@ -804,7 +804,7 @@ static int fts5SorterNext(Fts5Cursor *pCsr){
  rc = sqlite3_step(pSorter->pStmt);
  if( rc==SQLITE_DONE ){
    rc = SQLITE_OK;
-    CsrFlagSet(pCsr, FTS5CSR_EOF|FTS5CSR_REQUIRE_CONTENT);
+    CsrFlagSet(pCsr, FTS5CSR_EOF);
  }else if( rc==SQLITE_ROW ){
    const u8 *a;
    const u8 *aBlob;
@@ -1374,8 +1374,7 @@ static int fts5FilterMethod(
        pTab->pStorage, fts5StmtType(pCsr), &pCsr->pStmt, &pTab->p.base.zErrMsg
    );
    if( rc==SQLITE_OK ){
-      if( pRowidEq!=0 ){
-        assert( pCsr->ePlan==FTS5_PLAN_ROWID );
+      if( pCsr->ePlan==FTS5_PLAN_ROWID ){
        sqlite3_bind_value(pCsr->pStmt, 1, pRowidEq);
      }else{
        sqlite3_bind_int64(pCsr->pStmt, 1, pCsr->iFirstRowid);
@@ -417,16 +417,12 @@ static int fts5StorageDeleteFromIndex(
    if( pConfig->abUnindexed[iCol-1]==0 ){
      const char *zText;
      int nText;
-      assert( pSeek==0 || apVal==0 );
-      assert( pSeek!=0 || apVal!=0 );
      if( pSeek ){
        zText = (const char*)sqlite3_column_text(pSeek, iCol);
        nText = sqlite3_column_bytes(pSeek, iCol);
-      }else if( ALWAYS(apVal) ){
+      }else{
        zText = (const char*)sqlite3_value_text(apVal[iCol-1]);
        nText = sqlite3_value_bytes(apVal[iCol-1]);
-      }else{
-        continue;
      }
      ctx.szCol = 0;
      rc = sqlite3Fts5Tokenize(pConfig, FTS5_TOKENIZE_DOCUMENT, 
@@ -1062,9 +1058,8 @@ int sqlite3Fts5StorageDocsize(Fts5Storage *p, i64 iRowid, int *aCol){

  assert( p->pConfig->bColumnsize );
  rc = fts5StorageGetStmt(p, FTS5_STMT_LOOKUP_DOCSIZE, &pLookup, 0);
-  if( pLookup ){
+  if( rc==SQLITE_OK ){
    int bCorrupt = 1;
-    assert( rc==SQLITE_OK );
    sqlite3_bind_int64(pLookup, 1, iRowid);
    if( SQLITE_ROW==sqlite3_step(pLookup) ){
      const u8 *aBlob = sqlite3_column_blob(pLookup, 0);
@@ -1077,8 +1072,6 @@ int sqlite3Fts5StorageDocsize(Fts5Storage *p, i64 iRowid, int *aCol){
    if( bCorrupt && rc==SQLITE_OK ){
      rc = FTS5_CORRUPT;
    }
-  }else{
-    assert( rc!=SQLITE_OK );
  }

  return rc;
@@ -60,7 +60,6 @@ struct Fts5VocabCursor {

  int bEof;                       /* True if this cursor is at EOF */
  Fts5IndexIter *pIter;           /* Term/rowid iterator object */
-  void *pStruct;                  /* From sqlite3Fts5StructureRef() */

  int nLeTerm;                    /* Size of zLeTerm in bytes */
  char *zLeTerm;                  /* (term <= $zLeTerm) paramater, or NULL */
@@ -374,7 +373,7 @@ static int fts5VocabOpenMethod(
  }

  if( rc==SQLITE_OK ){
-    i64 nByte = pFts5->pConfig->nCol * sizeof(i64)*2 + sizeof(Fts5VocabCursor);
+    int nByte = pFts5->pConfig->nCol * sizeof(i64)*2 + sizeof(Fts5VocabCursor);
    pCsr = (Fts5VocabCursor*)sqlite3Fts5MallocZero(&rc, nByte);
  }

@@ -394,8 +393,6 @@ static int fts5VocabOpenMethod(
 static void fts5VocabResetCursor(Fts5VocabCursor *pCsr){
  pCsr->rowid = 0;
  sqlite3Fts5IterClose(pCsr->pIter);
-  sqlite3Fts5StructureRelease(pCsr->pStruct);
-  pCsr->pStruct = 0;
  pCsr->pIter = 0;
  sqlite3_free(pCsr->zLeTerm);
  pCsr->nLeTerm = -1;
@@ -473,11 +470,9 @@ static int fts5VocabInstanceNext(Fts5VocabCursor *pCsr){
 static int fts5VocabNextMethod(sqlite3_vtab_cursor *pCursor){
  Fts5VocabCursor *pCsr = (Fts5VocabCursor*)pCursor;
  Fts5VocabTable *pTab = (Fts5VocabTable*)pCursor->pVtab;
+  int rc = SQLITE_OK;
  int nCol = pCsr->pFts5->pConfig->nCol;
-  int rc;

-  rc = sqlite3Fts5StructureTest(pCsr->pFts5->pIndex, pCsr->pStruct);
-  if( rc!=SQLITE_OK ) return rc;
  pCsr->rowid++;

  if( pTab->eType==FTS5_VOCAB_INSTANCE ){
@@ -651,9 +646,6 @@ static int fts5VocabFilterMethod(
  if( rc==SQLITE_OK ){
    Fts5Index *pIndex = pCsr->pFts5->pIndex;
    rc = sqlite3Fts5IndexQuery(pIndex, zTerm, nTerm, f, 0, &pCsr->pIter);
-    if( rc==SQLITE_OK ){
-      pCsr->pStruct = sqlite3Fts5StructureRef(pIndex);
-    }
  }
  if( rc==SQLITE_OK && eType==FTS5_VOCAB_INSTANCE ){
    rc = fts5VocabInstanceNewTerm(pCsr);
@@ -165,7 +165,7 @@ do_execsql_test 4.0 {
 }

 do_execsql_test 5.0 {
-  CREATE VIRTUAL TABLE p1 USING fts5(a, b, detail=%DETAIL%);
+  CREATE VIRTUAL TABLE p1 USING fts5(a, b);
  INSERT INTO p1 VALUES(
    'x a a a a a a a a a a',
    'a a a a a a a a a a a a a a a a a a a x'
@@ -184,12 +184,6 @@ do_execsql_test 5.3 {
 do_execsql_test 5.4 {
  SELECT snippet(p1, 0, '[', NULL, '...', 6) FROM p1('x');
 } {{[x a a a a a...}}
-do_execsql_test 5.5 {
-  SELECT snippet(p1, 0, '[', NULL, '...', 6) FROM p1('x OR ""');
-} {{[x a a a a a...}}
-do_execsql_test 5.6 {
-  SELECT snippet(p1, 0, '[', NULL, '...', 6) FROM p1('x OR ' || x'DB');
-} {{[x a a a a a...}}

 } ;# foreach_detail_mode 

@@ -11,7 +11,6 @@
 # This file implements regression tests for SQLite library.  The
 # focus of this script is testing the FTS5 module.
 #
-# TESTRUNNER: slow

 source [file join [file dirname [info script]] fts5_common.tcl]
 set testprefix fts5ah
@@ -14791,7 +14791,7 @@ do_test 75.0 {

 do_catchsql_test 75.1 {
  SELECT rowid, quote(matchinfo(t1,'pcxybs')) FROM t1 WHERE t1 MATCH 'e*';
-} {1 {unable to use function matchinfo in the requested context}}
+} {1 {database disk image is malformed}}

 #-------------------------------------------------------------------------
 reset_db
@@ -14922,603 +14922,6 @@ do_catchsql_test 76.1 {
  SELECT * FROM t4;
 } {1 {database disk image is malformed}}

-#-------------------------------------------------------------------------
-reset_db
-do_test 77.0 {
-  sqlite3 db {}
-  db deserialize [decode_hexdb {
-| size 24576 pagesize 4096 filename crash-53216796d7c3d8.db
-| page 1 offset 0
-|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
-|     16: 10 00 01 01 00 40 20 20 00 00 00 06 40 00 00 06   .....@  ....@...
-|     32: 00 00 00 00 00 00 00 00 00 00 00 06 00 00 00 00   ................
-|     96: 00 00 00 00 0d 00 00 00 06 0e 0f 00 0f aa 0f 53   ...............S
-|    112: 0e e8 0e 8b 0e 33 0e 0f 00 00 00 00 00 00 00 00   .....3..........
-|   3584: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 22   ................
-|   3600: 06 06 17 11 11 01 31 74 61 62 6c 65 62 62 62 62   ......1tablebbbb
-|   3616: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 62 62   .CREATE TABLE bb
-|   3632: 28 61 29 56 05 06 17 1f 1f 01 7d 74 61 62 6c 65   (a)V.......table
-|   3648: 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63 6f 6e 66   t1_configt1_conf
-|   3664: 69 67 05 43 52 45 41 54 45 20 54 41 42 4c 45 20   ig.CREATE TABLE 
-|   3680: 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b 20 50 52   't1_config'(k PR
-|   3696: 49 4d 41 52 59 20 4b 45 59 2c 20 76 29 20 57 49   IMARY KEY, v) WI
-|   3712: 54 48 4f 55 54 20 52 4f 57 49 44 5b 04 07 17 21   THOUT ROWID[...!
-|   3728: 21 01 81 01 74 61 62 6c 65 74 31 5f 64 6f 63 73   !...tablet1_docs
-|   3744: 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65 04 43 52   izet1_docsize.CR
-|   3760: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 64   EATE TABLE 't1_d
-|   3776: 6f 63 73 69 7a 65 27 28 69 64 20 49 4e 54 45 47   ocsize'(id INTEG
-|   3792: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
-|   3808: 73 7a 20 42 4c 4f 42 29 69 03 07 17 19 19 01 81   sz BLOB)i.......
-|   3824: 2d 74 61 62 6c 65 74 31 5f 69 64 78 74 31 5f 69   -tablet1_idxt1_i
-|   3840: 64 78 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   dx.CREATE TABLE 
-|   3856: 27 74 31 5f 69 64 78 27 28 73 65 67 69 64 2c 20   't1_idx'(segid, 
-|   3872: 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50 52 49 4d   term, pgno, PRIM
-|   3888: 41 52 59 20 4b 45 59 28 73 65 67 69 64 2c 20 74   ARY KEY(segid, t
-|   3904: 65 72 6d 29 29 20 57 49 54 48 4f 55 54 20 52 4f   erm)) WITHOUT RO
-|   3920: 57 49 44 55 35 07 17 1b 1b 01 81 01 74 61 62 6c   WIDU5.......tabl
-|   3936: 65 74 31 5f 64 61 74 61 74 31 5f 64 61 74 61 02   et1_datat1_data.
-|   3952: 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74 31   CREATE TABLE 't1
-|   3968: 5f 64 61 74 61 27 28 69 64 20 49 4e 54 45 47 45   _data'(id INTEGE
-|   3984: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 62   R PRIMARY KEY, b
-|   4000: 6c 6f 63 6b 20 42 4c 4f 42 29 54 01 07 17 11 11   lock BLOB)T.....
-|   4016: 08 81 15 74 61 62 6c 65 74 31 74 31 43 52 45 41   ...tablet1t1CREA
-|   4032: 54 45 20 56 49 52 54 55 41 4c 20 54 41 42 4c 45   TE VIRTUAL TABLE
-|   4048: 20 74 31 20 55 53 49 4e 47 20 66 74 73 35 28 61    t1 USING fts5(a
-|   4064: 2c 62 2c 70 72 65 66 69 78 3d 22 31 2c 32 2c 33   ,b,prefix=.1,2,3
-|   4080: 2c 34 22 2c 20 63 6f 6e 74 65 6e 74 3d 22 22 29   ,4., content=..)
-| page 2 offset 4096
-|      0: 0d 0b 6a 00 37 09 4c 02 0f e7 09 4c 0f c6 0f a4   ..j.7.L....L....
-|     16: 0f 88 0f 6d 0f 4b 0f 2c 0f 0e 0e ec 0e cd 0e ad   ...m.K.,........
-|     32: 0e 8e 0e 6c 0e 4b 0e 29 0e 08 0d e6 0d c4 0d b5   ...l.K.)........
-|     48: 0d 97 0d 76 0d 54 0d 31 0d 15 0c f3 0c d3 0c b5   ...v.T.1........
-|     64: 0c 95 0c 73 0c 54 0c 32 0c 10 0b ee 0b cc 0b b0   ...s.T.2........
-|     80: 0b 8d 0b 7e 0b 48 0b 2e 0b 0b 0a ef 0a cc 0a ad   ...~.H..........
-|     96: 0a 8c 0a 6d 00 00 00 00 00 00 00 00 00 00 00 00   ...m............
-|   2368: 00 00 00 00 00 00 00 00 00 00 00 00 15 0a 03 00   ................
-|   2384: 30 00 00 00 01 01 03 35 00 03 01 01 12 02 01 12   0......5........
-|   2400: 03 01 11 1c 8c 80 80 80 80 10 03 00 3e 00 00 00   ............>...
-|   2416: 17 01 05 05 34 74 61 62 6c 03 02 03 01 04 77 68   ....4tabl.....wh
-|   2432: 65 72 03 02 06 09 1b 8c 80 80 80 80 0f 03 00 3c   er.............<
-|   2448: 00 00 00 16 05 34 66 74 73 34 03 02 02 01 04 6e   .....4fts4.....n
-|   2464: 75 6d 62 03 06 01 04 09 1b 8c 80 80 80 80 0e 03   umb.............
-|   2480: 00 3c 00 00 00 16 04 33 74 68 65 03 06 01 01 04   .<.....3the.....
-|   2496: 01 03 77 68 65 03 02 04 04 0a 1b 8c 80 80 80 80   ..whe...........
-|   2512: 0d 03 00 3c 00 00 00 16 04 33 6e 75 6d 03 06 01   ...<.....3num...
-|   2528: 01 05 01 03 74 61 62 03 02 03 04 0a 19 8c 80 80   ....tab.........
-|   2544: 80 80 0c 03 00 38 00 00 00 14 03 32 77 68 03 02   .....8.....2wh..
-|   2560: 04 00 04 33 66 74 73 03 02 02 04 07 18 8c 80 80   ...3fts.........
-|   2576: 80 80 0b 03 00 36 00 00 00 13 03 32 74 61 03 02   .....6.....2ta..
-|   2592: 03 02 01 68 03 06 01 01 04 04 07 1b 8c 80 80 80   ...h............
-|   2608: 80 0a 03 00 3c 00 00 00 16 03 32 6e 75 03 06 01   ....<.....2nu...
-|   2624: 01 05 01 02 6f 66 03 06 01 01 06 04 09 19 8c 80   ....of..........
-|   2640: 82 d0 80 09 03 00 38 00 00 00 14 03 32 66 74 03   ......8.....2ft.
-|   2656: 02 02 01 02 69 73 03 06 01 01 03 04 07 18 8c 80   ....is..........
-|   2672: 80 80 80 08 03 00 36 00 00 00 13 02 31 74 03 08   ......6.....1t..
-|   2688: 03 01 01 04 01 01 77 03 02 04 04 09 1a 8c 80 80   ......w.........
-|   2704: 80 80 07 03 00 3a 00 00 00 15 02 31 6e 03 08 01   .....:.....1n...
-|   2720: 01 02 05 01 01 6f 03 06 01 01 06 04 09 18 8c 80   .....o..........
-|   2736: 81 80 80 06 03 00 36 00 00 00 13 04 02 31 66 03   ......6......1f.
-|   2752: 02 02 01 01 69 03 06 01 01 03 05 06 1c 8c 80 80   ....i...........
-|   2768: 80 80 05 03 00 3e 00 00 00 17 04 30 74 68 65 03   .....>.....0the.
-|   2784: 06 01 01 04 01 05 77 68 65 72 65 03 02 04 0a 15   ......where.....
-|   2800: 8c 80 80 80 80 04 03 00 30 00 00 00 11 01 01 06   ........0.......
-|   2816: 06 30 74 61 62 6c 65 03 02 03 07 1c 8c 80 80 80   .0table.........
-|   2832: 80 03 03 00 3e 00 00 00 17 07 30 6e 75 6d 62 65   ....>.....0numbe
-|   2848: 72 03 06 01 01 05 01 02 6f 66 03 06 04 0d 13 8c   r.......of......
-|   2864: 80 80 80 80 02 03 00 2c 00 00 00 0f fc 01 03 02   .......,........
-|   2880: 30 6e 03 06 01 00 f2 07 1b 8c 80 80 80 80 01 03   0n..............
-|   2896: 00 3c 00 00 00 16 08 30 66 74 73 34 61 75 78 03   .<.....0fts4aux.
-|   2912: 02 02 01 02 69 73 03 06 04 0c 00 00 00 18 ea 00   ....is..........
-|   2928: 00 00 01 01 02 24 00 02 01 01 12 02 01 12 08 88   .....$..........
-|   2944: 80 80 80 80 12 03 00 12 10 00 00 05 02 1c 88 80   ................
-|   2960: 80 80 80 11 03 00 3e 00 00 00 17 05 34 72 6f 77   ......>.....4row
-|   2976: 73 02 06 01 01 05 01 04 74 68 65 72 02 02 04 0b   s.......ther....
-|   2992: 15 88 80 80 80 80 10 03 00 2f ff ff f0 11 02 01   ........./......
-|   3008: 01 07 05 34 62 65 74 77 02 02 04 08 1b 88 80 80   ...4betw........
-|   3024: 80 80 0f 03 00 3c 00 00 00 16 04 04 33 72 6f 77   .....<......3row
-|   3040: 02 06 01 01 05 01 03 74 68 65 02 08 05 0a 1b 88   .......the......
-|   3056: 80 80 80 80 0d 03 00 3c 00 00 00 16 01 01 02 04   .......<........
-|   3072: 33 61 72 65 02 02 03 01 03 62 65 74 02 02 07 08   3are.....bet....
-|   3088: 1b 88 80 80 80 80 0d 03 00 3c 00 00 00 16 03 32   .........<.....2
-|   3104: 74 68 02 08 02 01 01 07 00 04 33 61 6e 64 02 06   th........3and..
-|   3120: 04 0a 1b 88 80 80 80 80 0c 03 00 3c 00 00 00 16   ...........<....
-|   3136: 03 32 69 6e 02 06 01 01 06 01 02 72 6f 02 06 01   .2in.......ro...
-|   3152: 01 05 04 09 18 88 80 80 80 80 0b 03 00 36 00 00   .............6..
-|   3168: 00 13 02 03 32 61 72 02 02 03 01 02 62 65 02 02   ....2ar.....be..
-|   3184: 04 05 07 1b 88 80 80 80 80 0a 03 00 3c 00 00 00   ............<...
-|   3200: 16 02 31 74 02 08 02 01 01 07 00 03 32 61 6e 02   ..1t........2an.
-|   3216: 06 01 01 04 09 19 88 80 80 80 80 09 03 00 38 00   ..............8.
-|   3232: 00 00 14 02 31 6e 02 06 01 01 03 01 01 72 02 06   ....1n.......r..
-|   3248: 01 01 05 04 08 17 88 80 80 80 80 08 03 00 34 00   ..............4.
-|   3264: 01 00 12 02 31 62 02 02 04 01 01 69 02 06 01 01   ....1b.....i....
-|   3280: 06 04 06 19 88 80 80 80 80 07 03 00 38 00 00 00   ............8...
-|   3296: 14 04 02 31 32 02 02 05 01 01 61 02 08 03 01 01   ...12.....a.....
-|   3312: 02 05 06 1b 88 80 80 80 80 06 03 00 3c 00 00 00   ............<...
-|   3328: 16 06 30 74 68 65 72 65 e7 02 02 00 02 31 31 02   ..0there.....11.
-|   3344: 06 01 01 04 0a 15 88 80 80 80 80 05 03 00 30 00   ..............0.
-|   3360: 00 00 11 01 01 05 04 30 74 68 65 02 06 01 01 07   .......0the.....
-|   3376: 07 1c 88 80 80 80 80 04 03 00 3e 00 00 00 17 01   ..........>.....
-|   3392: 01 06 02 30 6e 02 06 01 01 03 01 04 72 6f 77 73   ...0n.......rows
-|   3408: 02 06 07 08 1b 88 80 80 80 80 03 03 00 3c 00 00   .............<..
-|   3424: 00 16 08 30 62 65 74 77 65 65 6e 02 02 04 01 02   ...0between.....
-|   3440: 69 6e 02 06 04 0c 1a 88 80 80 80 80 02 03 00 3a   in.............:
-|   3456: 00 00 00 15 04 30 61 6e 64 02 06 01 01 02 02 02   .....0and.......
-|   3472: 72 65 02 02 03 04 0a 17 88 80 80 80 80 01 03 00   re..............
-|   3488: 34 01 00 00 12 02 30 31 02 06 01 01 04 01 01 32   4.....01.......2
-|   3504: 02 02 05 04 08 08 84 80 80 80 80 12 03 00 16 00   ................
-|   3520: 00 00 05 04 1b 84 80 80 80 80 11 03 00 3c 00 00   .............<..
-|   3536: 00 16 05 34 74 61 62 6c 01 06 01 01 05 02 03 65   ...4tabl.......e
-|   3552: 72 6d 01 02 04 0b 1b 84 80 80 80 80 10 03 00 3c   rm.............<
-|   3568: 00 00 00 16 05 34 65 61 63 68 01 02 02 01 04 70   .....4each.....p
-|   3584: 72 65 73 01 02 05 04 09 1a 84 80 80 80 80 0f 03   res.............
-|   3600: 00 3a 00 00 00 15 04 33 74 65 72 01 02 04 02 02   .:.....3ter.....
-|   3616: 68 65 01 06 01 01 03 04 08 1b 84 80 80 80 80 0e   he..............
-|   3632: 03 00 3c 00 00 00 16 04 33 70 72 65 01 02 05 01   ..<.....3pre....
-|   3648: 03 74 61 62 01 06 01 01 05 04 08 1a 84 80 80 80   .tab............
-|   3664: 80 0d 03 00 3a 00 00 00 15 04 33 66 6f 72 01 02   ....:.....3for..
-|   3680: 02 02 02 74 73 01 06 01 01 04 04 08 1b 84 80 80   ...ts...........
-|   3696: 80 80 0c 03 00 3c 00 00 00 16 03 32 74 68 01 06   .....<.....2th..
-|   3712: 01 01 03 00 04 33 65 61 63 01 02 03 04 09 18 84   .....3eac.......
-|   3728: 80 80 80 80 0b 03 00 36 00 00 00 13 03 32 74 61   .......6.....2ta
-|   3744: 01 06 01 01 05 02 01 65 01 02 04 04 09 19 84 80   .......e........
-|   3760: 80 80 80 0a 03 00 38 00 00 00 14 03 32 69 6e 01   ......8.....2in.
-|   3776: 06 01 01 02 01 02 70 72 01 02 05 04 09 18 84 80   ......pr........
-|   3792: 80 80 80 09 03 00 36 00 00 00 13 03 32 66 6f 01   ......6.....2fo.
-|   3808: 02 02 02 01 74 01 06 01 01 04 04 07 1b 84 80 80   ....t...........
-|   3824: 80 80 08 03 00 3c 00 00 00 16 02 31 74 01 0a 04   .....<.....1t...
-|   3840: 01 01 03 04 00 03 32 65 61 01 02 03 04 0a 17 84   ......2ea.......
-|   3856: 80 80 80 80 07 03 00 34 00 00 00 12 02 31 69 01   .......4.....1i.
-|   3872: 06 01 01 02 01 01 70 01 02 05 04 08 18 84 80 80   ......p.........
-|   3888: 80 80 06 03 00 36 00 00 00 13 02 31 65 01 02 03   .....6.....1e...
-|   3904: 01 01 66 01 08 02 01 01 04 04 06 1b 84 80 80 80   ..f.............
-|   3920: 80 05 03 00 3c 00 00 00 16 05 30 74 65 72 6d 01   ....<.....0term.
-|   3936: 02 04 02 02 68 65 01 06 01 01 03 04 09 14 84 80   ....he..........
-|   3952: 80 80 80 04 03 00 2e 00 00 00 10 06 30 74 61 62   ............0tab
-|   3968: 6c 65 01 06 01 01 05 04 15 84 7f 80 80 80 03 03   le..............
-|   3984: 00 30 00 00 00 11 02 08 30 70 72 65 73 65 6e 74   .0......0present
-|   4000: 01 02 05 05 1b 84 80 80 80 80 02 03 00 3c 00 00   .............<..
-|   4016: 00 16 04 30 66 74 73 01 06 01 01 04 01 02 69 6e   ...0fts.......in
-|   4032: 01 06 01 01 04 0a 1a 84 80 80 80 80 01 03 00 3a   ...............:
-|   4048: 00 00 00 15 05 30 65 61 63 68 01 02 03 01 03 66   .....0each.....f
-|   4064: 6f 72 01 02 02 04 09 06 01 03 00 12 03 0b 0f 00   or..............
-|   4080: 00 08 8c 80 80 80 80 11 03 00 16 00 00 00 05 04   ................
-| page 3 offset 8192
-|      0: 0a 00 00 00 32 0e 4f 00 0f fa 0f f1 0f e9 0f e1   ....2.O.........
-|     16: 0f d8 0f d1 0f c9 0f c1 0f b9 0f b1 0f a9 0f a0   ................
-|     32: 0f 98 0f 90 0f 87 0f 80 0f 78 0f 71 0f 68 0f 5f   .........x.q.h._
-|     48: 0f 56 0f 4d 0f 41 0f 38 0f 2f 0f 26 0f 1d 0f 03   .V.M.A.8./.&....
-|     64: 0f 0a 0f 00 9e f7 0e ee 0e e6 0e dd 0e d6 0e cd   ................
-|     80: 0e c3 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
-|   3648: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08   ................
-|   3664: 04 01 10 01 03 34 74 20 07 04 01 0e 01 03 34 1e   .....4t ......4.
-|   3680: 09 04 01 12 01 03 33 74 68 1c 08 04 01 10 01 03   ......3th.......
-|   3696: 33 6e 1a 08 04 01 10 01 03 32 77 18 08 04 01 10   3n.......2w.....
-|   3712: 01 03 32 74 16 08 04 01 10 01 03 32 6e 14 07 04   ..2t.......2n...
-|   3728: 01 0e 01 03 32 12 08 04 01 10 01 03 31 74 10 08   ....2.......1t..
-|   3744: 04 01 10 01 03 31 6e 0e 07 04 01 0e 01 03 31 0c   .....1n.......1.
-|   3760: 09 04 01 12 01 03 30 74 68 0a 08 04 01 10 01 03   ......0th.......
-|   3776: 30 74 08 09 04 01 12 01 03 30 6e 75 06 08 04 01   0t.......0nu....
-|   3792: 10 01 03 30 6e 04 06 04 01 0c 01 03 02 08 04 01   ...0n...........
-|   3808: 10 01 02 34 72 22 07 04 01 0e 01 02 34 20 08 04   ...4r.......4 ..
-|   3824: 01 10 01 02 33 72 1e 09 04 01 12 01 02 33 61 72   ....3r.......3ar
-|   3840: 1c 18 04 01 10 01 02 32 74 1a 08 04 01 10 01 02   .......2t.......
-|   3856: 32 69 18 09 04 01 12 01 02 32 61 72 16 08 04 01   2i.......2ar....
-|   3872: 10 01 02 31 74 14 08 04 01 0f 01 02 31 6e 12 0a   ...1t.......1n..
-|   3888: d4 01 10 01 02 31 62 10 08 04 01 10 01 02 31 32   .....1b.......12
-|   3904: 0e 0b 04 01 16 01 02 30 74 68 65 72 0c 08 04 01   .......0ther....
-|   3920: 10 01 02 30 74 0a 08 04 01 10 01 02 30 6e 08 08   ...0t.......0n..
-|   3936: 04 01 10 01 02 30 62 06 08 04 01 10 01 02 30 61   .....0b.......0a
-|   3952: 04 06 04 01 0c 01 02 02 07 04 09 10 01 34 74 22   .............4t.
-|   3968: 06 04 09 0e 01 34 20 08 04 09 12 01 33 74 65 1e   .....4 .....3te.
-|   3984: 07 04 09 10 01 33 70 1c 07 04 09 10 01 33 66 1a   .....3p......3f.
-|   4000: 08 04 09 12 01 32 74 68 18 07 04 09 10 01 32 74   .....2th......2t
-|   4016: 16 07 04 09 10 01 32 69 14 07 04 09 10 01 32 66   ......2i......2f
-|   4032: 12 07 04 09 10 01 31 74 10 07 04 09 10 01 31 69   ......1t......1i
-|   4048: 0e 06 04 09 0e 01 31 0c 08 04 09 12 01 30 74 65   ......1......0te
-|   4064: 0a 07 04 09 10 01 30 74 08 07 04 09 10 01 30 70   ......0t......0p
-|   4080: 06 08 04 09 1e 61 30 66 74 04 05 04 09 0c 01 02   .....a0ft.......
-| page 4 offset 12288
-|      0: 0d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
-|   4064: 00 00 00 00 00 00 00 00 00 00 00 05 03 03 00 10   ................
-|   4080: 03 05 05 02 03 00 10 04 06 05 01 03 00 10 04 04   ................
-| page 5 offset 16384
-|      0: 0a 00 00 00 02 0f eb 00 0f eb 0f f4 00 00 00 00   ................
-|   4064: 00 00 00 00 00 00 00 00 00 00 00 08 03 15 01 70   ...............p
-|   4080: 67 73 7a 18 0b 03 1b 01 76 65 72 73 69 6f 6e 04   gsz.....version.
-| page 6 offset 20480
-|      0: 0d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
-|   4080: 00 00 03 03 02 01 da 03 02 02 01 02 00 00 00 00   ................
-| end crash-53216796d7c3d8.db
-}]} {}
-
-do_catchsql_test 77.1 {
-  UPDATE t1 SET B =quote(zeroblob(200)) WHERE b MATCH 'threa*thrad*tlrad*the�d';
-} {1 {database disk image is malformed}}
-
-#-------------------------------------------------------------------------
-reset_db
-do_execsql_test 78.0 {
-  CREATE VIRTUAL TABLE t1 USING fts5(a,b,c);
-  DELETE FROM t1_data;
-  INSERT INTO t1_data VALUES(1,X'245a2424');
-  INSERT INTO t1_data VALUES(10,X'000000000101010001010101');
-  INSERT INTO t1_data VALUES(137438953473,X'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');
-}
-
-do_execsql_test 78.1 {
-  CREATE VIRTUAL TABLE t3 USING fts5vocab('t1','col');
-}
-
-do_execsql_test 78.2 {
-  SELECT count(rowid) FROM t3 WHERE term>='nsocse';
-} 2
-
-#-------------------------------------------------------------------------
-reset_db
-do_test 79.0 {
-  sqlite3 db {}
-  db deserialize [decode_hexdb {
-.open --hexdb
-| size 28672 pagesize 4096 filename sql053282.txt.db
-| page 1 offset 0
-|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
-|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
-|     32: 00 00 00 02 00 00 00 01 00 00 00 00 00 00 00 00   ................
-|     96: 00 00 00 00 0d 0f c7 00 06 0d b6 00 0f 8d 0f 36   ...............6
-|    112: 0e cb 0e 6b 0e 0e 0d b6 0d b5 00 00 00 00 00 00   ...k............
-|   3504: 00 00 00 00 00 00 56 07 06 17 1f 1f 01 7d 74 61   ......V.......ta
-|   3520: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
-|   3536: 6f 6e 66 69 67 07 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
-|   3552: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
-|   3568: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
-|   3584: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 06    WITHOUT ROWID[.
-|   3600: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
-|   3616: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
-|   3632: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
-|   3648: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
-|   3664: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
-|   3680: 59 2c 20 73 7a 20 42 4c 4f 42 29 5e 05 07 17 21   Y, sz BLOB)^...!
-|   3696: 21 01 81 07 74 61 62 6c 65 74 31 5f 63 6f 6e 74   !...tablet1_cont
-|   3712: 65 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 05 43 52   entt1_content.CR
-|   3728: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63   EATE TABLE 't1_c
-|   3744: 6f 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47   ontent'(id INTEG
-|   3760: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
-|   3776: 63 30 2c 20 63 31 2c 20 63 32 29 69 04 07 17 19   c0, c1, c2)i....
-|   3792: 19 01 81 2d 74 61 62 6c 65 74 31 5f 69 64 78 74   ...-tablet1_idxt
-|   3808: 31 5f 69 64 78 04 43 52 45 41 54 45 20 54 41 42   1_idx.CREATE TAB
-|   3824: 4c 45 20 27 74 31 5f 69 64 78 27 28 73 65 67 69   LE 't1_idx'(segi
-|   3840: 64 2c 20 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50   d, term, pgno, P
-|   3856: 52 49 4d 41 52 59 20 4b 45 59 28 73 65 67 69 64   RIMARY KEY(segid
-|   3872: 2c 20 74 65 72 6d 29 29 20 57 49 54 48 4f 55 54   , term)) WITHOUT
-|   3888: 20 52 4f 57 49 44 55 03 07 17 1b 1b 01 81 01 74    ROWIDU........t
-|   3904: 61 62 6c 65 74 31 5f 64 61 74 61 74 31 5f 64 61   ablet1_datat1_da
-|   3920: 74 61 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   ta.CREATE TABLE 
-|   3936: 27 74 31 5f 64 61 74 61 27 28 69 64 20 49 4e 54   't1_data'(id INT
-|   3952: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
-|   3968: 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 38 02 06   , block BLOB)8..
-|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
-|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
-|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 35   LE t1 USING fts5
-|   4032: 28 61 2c 62 2c 63 29 00 00 00 00 00 00 00 00 00   (a,b,c).........
-| page 3 offset 8192
-|      0: 0d 00 00 00 03 0c 94 00 0f e6 0f ef 0c 94 00 01   ................
-|   3216: 00 00 00 00 86 4a 84 80 80 80 80 01 04 00 8d 18   .....J..........
-|   3232: 00 00 03 2b 02 30 30 01 02 06 01 02 06 01 02 06   ...+.00.........
-|   3248: 1f 02 03 01 02 03 01 02 03 01 08 32 30 31 36 30   ...........20160
-|   3264: 36 30 39 01 02 07 01 02 07 01 02 07 01 01 34 01   609...........4.
-|   3280: 02 05 01 02 05 01 02 05 01 01 35 01 02 04 01 02   ..........5.....
-|   3296: 04 01 02 04 02 07 30 30 30 30 30 30 30 1c 02 04   ......0000000...
-|   3312: 01 02 04 01 02 04 01 06 62 69 6e 61 72 79 03 06   ........binary..
-|   3328: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
-|   3344: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
-|   3360: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
-|   3376: 03 06 01 02 02 03 06 01 02 02 01 08 63 6f 6d 70   ............comp
-|   3392: 69 6c 65 72 01 02 02 01 02 02 01 02 02 01 06 64   iler...........d
-|   3408: 62 73 74 61 74 07 02 03 01 02 03 01 02 03 02 04   bstat...........
-|   3424: 65 62 75 67 04 02 02 01 02 02 01 02 02 01 06 65   ebug...........e
-|   3440: 6e 61 62 6c 65 07 02 02 01 02 02 01 02 02 01 02   nable...........
-|   3456: 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02   ................
-|   3472: 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01   ................
-|   3488: 02 02 01 02 02 01 02 02 01 02 12 01 02 02 01 02   ................
-|   3504: 02 01 02 02 02 08 78 74 65 6e 73 69 6f 6e 1f 02   ......xtension..
-|   3520: 04 01 02 04 01 02 04 01 04 66 74 73 34 0a 02 03   .........fts4...
-|   3536: 01 02 03 01 02 03 04 01 35 0d 02 03 01 02 03 01   ........5.......
-|   3552: 02 03 01 03 67 63 63 01 02 03 01 02 03 01 02 03   ....gcc.........
-|   3568: 02 06 65 6f 70 6f 6c 79 10 02 03 01 02 03 01 02   ..eopoly........
-|   3584: 03 01 05 6a 73 6f 6e 31 13 02 03 01 02 03 01 02   ...json1........
-|   3600: 03 01 04 6c 6f 61 64 1f 02 03 01 02 03 01 02 03   ...load.........
-|   3616: 01 03 6d 61 78 1c 02 02 01 02 02 01 02 02 02 05   ..max...........
-|   3632: 65 6d 6f 72 79 1c 02 03 01 02 03 01 02 03 04 04   emory...........
-|   3648: 73 79 73 35 16 02 03 01 02 03 01 02 03 01 06 6e   sys5...........n
-|   3664: 6f 63 61 73 65 02 06 01 02 02 03 06 01 02 02 03   ocase...........
-|   3680: 06 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06   ................
-|   3696: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
-|   3712: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
-|   3728: 02 01 04 6f 6d 69 74 1f 02 02 01 02 02 01 02 02   ...omit.........
-|   3744: 01 05 72 74 72 65 65 19 02 03 01 02 03 01 02 03   ..rtree.........
-|   3760: 04 02 69 6d 01 06 01 02 02 03 06 01 02 02 03 06   ..im............
-|   3776: 01 02 02 03 06 01 01 02 03 06 01 02 02 03 06 01   ................
-|   3792: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
-|   3808: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
-|   3824: 01 0a 74 68 72 65 61 64 73 61 66 65 22 02 02 01   ..threadsafe....
-|   3840: 02 02 01 02 02 01 04 76 74 61 62 07 02 04 01 02   .......vtab.....
-|   3856: 04 01 02 04 01 01 78 01 05 f1 01 02 01 06 01 01   ......x.........
-|   3872: 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02   ................
-|   3888: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
-|   3904: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
-|   3920: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
-|   3936: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
-|   3952: 01 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02   ................
-|   3968: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
-|   3984: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
-|   4000: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
-|   4016: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
-|   4032: 02 01 06 01 01 02 01 06 01 01 02 04 15 13 0c 0c   ................
-|   4048: 12 44 13 11 0f 47 13 0f 0c 0e 11 10 0f 0e 10 0f   .D...G..........
-|   4064: 44 0f 10 40 15 0f 07 01 03 00 14 24 5a 24 24 0f   D..@.......$Z$$.
-|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
-| page 4 offset 12288
-|      0: 0a 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
-|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
-| page 5 offset 16384
-|      0: 0d 00 00 00 24 0c 0a 00 0f d8 0f af 0f 86 0f 74   ....$..........t
-|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
-|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 0d ef 0d d5   ...t.[.@.$......
-|     48: 0d bb 0d a0 0d 84 0d 68 0d 4f 0d 00 00 00 00 00   .......h.O......
-|   3072: 00 00 00 00 00 00 00 00 00 00 18 24 05 00 25 0f   ...........$..%.
-|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
-|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
-|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 22   DSAFE=0XNOCASE..
-|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
-|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
-|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT LOAD EXTENSIO
-|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
-|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
-|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
-|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
-|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
-|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   MAX MEMORY=50000
-|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
-|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
-|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
-|   3328: 0f 17 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MAX MEMORY=500
-|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 2c   00000XRTRIM....,
-|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
-|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
-|   3392: 4c 45 20 52 54 52 45 45 58 4e 4f 43 41 53 45 17   LE RTREEXNOCASE.
-|   3408: 19 05 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   ...%..ENABLE RTR
-|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
-|   3440: 4e 41 42 4c 45 20 4d 45 4d 5a 69 53 35 58 42 49   NABLE MEMZiS5XBI
-|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
-|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
-|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
-|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 15 05 00 25   MSYS5XRTRIM....%
-|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 58 42   ..ENABLE JSON1XB
-|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
-|   3552: 4c 45 20 4a 53 4f 4e 31 58 4e 4f 43 41 53 45 17   LE JSON1XNOCASE.
-|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
-|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
-|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 58 42 49   NABLE GEOPOLYXBI
-|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
-|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 43 41 53 45   E GEOPOLYXNOCASE
-|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
-|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
-|   3680: 0f 19 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
-|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
-|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 0d 05   E FTS5XNOCASE...
-|   3728: 00 23 0f 17 45 4e 41 42 4c 45 20 46 54 53 3f d8   .#..ENABLE FTS?.
-|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
-|   3760: 4c 45 20 46 54 53 34 58 42 49 4e 41 52 59 17 0b   LE FTS4XBINARY..
-|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 34   ..#..ENABLE FTS4
-|   3792: 58 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   XNOCASE....#..EN
-|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
-|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
-|   3840: 55 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   UAT VTABXBINARY.
-|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
-|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
-|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
-|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
-|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
-|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
-|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 46   CASE.......DEBUF
-|   3968: e8 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   .RTRIM'...C..COM
-|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
-|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
-|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
-|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
-|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 0f 17 43   9XNOCASE&...C..C
-|   4064: 4f 4d 50 49 4c 45 52 3d 67 62 63 2d 35 2e 34 2e   OMPILER=gbc-5.4.
-|   4080: 30 20 32 30 31 36 30 36 30 39 58 52 54 52 49 4d   0 20160609XRTRIM
-| page 6 offset 20480
-|      0: 0d 00 00 00 24 0e e0 00 0f f8 0f f0 0f e8 0f e0   ....$...........
-|     16: 0f d8 0f d0 0f c8 0f c0 0f b8 0f bb 1f a8 0f a0   ................
-|     32: 0f 98 0f 90 0f 88 0f 80 0f 78 0f 70 0f 68 0f 60   .........x.p.h.`
-|     48: 0f 58 0f 50 0f 48 0f 40 0f 38 0f 30 00 00 00 00   .X.P.H.@.8.0....
-|   3808: 06 24 03 00 12 02 01 01 06 23 03 00 12 02 01 01   .$.......#......
-|   3824: 06 22 03 00 12 02 01 01 06 21 03 00 12 03 01 01   .........!......
-|   3840: 06 20 03 00 12 03 01 01 06 1f 03 00 12 03 01 01   . ..............
-|   3856: 06 1e 03 00 12 03 01 01 06 1d 03 00 12 03 01 01   ................
-|   3872: 06 1c 03 00 12 03 01 01 06 1b 03 00 12 02 01 01   ................
-|   3888: 06 1a 03 00 12 02 01 01 06 19 03 00 12 02 01 01   ................
-|   3904: 06 18 03 00 12 02 01 01 06 17 03 00 12 02 01 01   ................
-|   3920: 06 16 03 00 12 02 01 01 06 15 03 00 12 02 01 01   ................
-|   3936: 06 14 03 00 12 02 01 01 06 13 03 00 12 02 01 01   ................
-|   3952: 06 12 03 00 12 02 01 01 06 11 03 00 12 02 01 01   ................
-|   3968: 06 10 03 00 12 02 01 01 06 0f 03 00 12 02 01 01   ................
-|   3984: 06 0e 03 00 12 02 01 01 06 0d 03 00 12 02 01 01   ................
-|   4000: 06 0c 03 00 12 02 01 01 06 0b 03 00 12 02 01 01   ................
-|   4016: 06 0a 03 00 12 02 01 01 06 09 03 00 12 03 01 01   ................
-|   4032: 06 08 03 00 12 03 01 01 06 07 03 00 12 03 01 01   ................
-|   4048: 06 06 03 00 12 01 01 01 06 05 03 00 12 01 01 01   ................
-|   4064: 06 04 03 00 12 01 01 01 06 03 03 00 12 06 01 01   ................
-|   4080: 06 0a 83 00 12 06 01 01 06 01 03 00 12 06 01 01   ................
-| page 7 offset 24576
-|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
-|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
-| end sql053282.txt.db 
-}]} {}
-
-do_execsql_test 79.1 {
-  CREATE VIRTUAL TABLE t2 USING fts5vocab('t1','row');
-}
-
-do_catchsql_test 79.2 {
-  INSERT INTO t1(t1) SELECT 'merge' FROM t2;
-} {1 {query aborted}}
-
-#-------------------------------------------------------------------------
-reset_db
-do_test 80.0 {
-  sqlite3 db {}
-  db deserialize [decode_hexdb {
-.open --hexdb
-| size 40960 pagesize 4096 filename crash-f928a9c1ec68dd.db
-| page 1 offset 0
-|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
-|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 0a   .....@  ........
-|     32: 00 00 00 00 00 00 00 00 00 00 00 0d 00 00 00 04   ................
-|     96: 00 00 00 00 0d 00 00 00 0d 0b 6e 00 0f a3 0f 4c   ..........n....L
-|    112: 0e e1 0e 81 0e 24 0d cc 0d 72 0d 1b 0c b0 0c 50   .....$...r.....P
-|    128: 0b f8 0b b3 0b 6e 00 00 00 00 00 00 00 00 00 00   .....n..........
-|   2912: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 43 0d   ..............C.
-|   2928: 06 17 11 11 08 75 74 61 62 6c 65 74 34 74 34 43   .....utablet4t4C
-|   2944: 52 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41   REATE VIRTUAL TA
-|   2960: 42 4c 45 20 74 34 20 55 53 49 4e 47 20 66 74 73   BLE t4 USING fts
-|   2976: 35 76 6f 63 61 62 28 27 74 32 27 2c 20 27 72 6f   5vocab('t2', 'ro
-|   2992: 77 27 29 43 0c 06 17 11 11 08 75 74 61 62 6c 65   w')C......utable
-|   3008: 74 33 74 33 43 52 45 41 54 45 20 56 49 52 54 55   t3t3CREATE VIRTU
-|   3024: 41 4c 20 54 41 42 4c 45 20 74 33 20 55 53 49 4e   AL TABLE t3 USIN
-|   3040: 47 20 66 74 73 35 76 6f 63 61 62 28 27 74 31 27   G fts5vocab('t1'
-|   3056: 2c 20 27 72 6f 77 27 29 56 0b 06 17 1f 1f 01 7d   , 'row')V.......
-|   3072: 74 61 62 6c 65 74 32 5f 63 6f 6e 66 69 67 74 32   tablet2_configt2
-|   3088: 5f 63 6f 6e 66 69 67 0a 43 52 45 41 54 45 20 54   _config.CREATE T
-|   3104: 41 42 4c 45 20 27 74 32 5f 63 6f 6e 66 69 67 27   ABLE 't2_config'
-|   3120: 28 6b 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   (k PRIMARY KEY, 
-|   3136: 76 29 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44   v) WITHOUT ROWID
-|   3152: 5e 0a 07 17 21 21 01 81 07 74 61 62 6c 65 74 32   ^...!!...tablet2
-|   3168: 5f 63 6f 6e 74 65 6e 74 74 32 5f 63 6f 6e 74 65   _contentt2_conte
-|   3184: 6e 74 09 43 52 45 41 54 45 20 54 41 42 4c 45 20   nt.CREATE TABLE 
-|   3200: 27 74 32 5f 63 6f 6e 74 65 6e 74 27 28 69 64 20   't2_content'(id 
-|   3216: 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20   INTEGER PRIMARY 
-|   3232: 4b 45 59 2c 20 63 30 2c 20 63 31 2c 20 63 32 29   KEY, c0, c1, c2)
-|   3248: 69 09 07 17 19 19 01 81 2d 74 61 62 6c 65 74 32   i.......-tablet2
-|   3264: 5f 69 64 78 74 32 5f 69 64 78 08 43 52 45 41 54   _idxt2_idx.CREAT
-|   3280: 45 20 54 41 42 4c 45 20 27 74 32 5f 69 64 78 27   E TABLE 't2_idx'
-|   3296: 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70 67   (segid, term, pg
-|   3312: 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59 28   no, PRIMARY KEY(
-|   3328: 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57 49   segid, term)) WI
-|   3344: 54 48 4f 55 54 20 52 4f 57 49 44 55 08 07 17 1b   THOUT ROWIDU....
-|   3360: 1b 01 81 01 74 61 62 6c 65 74 32 5f 64 61 74 61   ....tablet2_data
-|   3376: 74 32 5f 64 61 74 61 07 43 52 45 41 54 45 20 54   t2_data.CREATE T
-|   3392: 41 42 4c 45 20 27 74 32 5f 64 61 74 61 27 28 69   ABLE 't2_data'(i
-|   3408: 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52   d INTEGER PRIMAR
-|   3424: 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f   Y KEY, block BLO
-|   3440: 42 29 58 07 07 17 11 11 08 81 1d 74 61 62 6c 65   B)X........table
-|   3456: 74 32 74 32 43 52 45 41 54 45 20 56 49 52 54 55   t2t2CREATE VIRTU
-|   3472: 41 4c 20 54 41 42 4c 45 20 74 32 20 55 53 49 4e   AL TABLE t2 USIN
-|   3488: 47 20 66 74 73 35 28 27 61 27 2c 5b 62 5d 2c 22   G fts5('a',[b],.
-|   3504: 63 22 2c 64 65 74 61 69 6c 3d 6e 6f 6e 65 2c 63   c.,detail=none,c
-|   3520: 6f 6c 75 6d 6e 73 69 7a 65 3d 30 29 56 06 06 17   olumnsize=0)V...
-|   3536: 1f 1f 01 7d 74 61 62 6c 65 74 31 5f 63 6f 6e 66   ....tablet1_conf
-|   3552: 69 67 74 31 5f 63 6f 6e 66 69 67 06 43 52 45 41   igt1_config.CREA
-|   3568: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f 6e   TE TABLE 't1_con
-|   3584: 66 69 67 27 28 6b 20 50 52 49 4d 41 52 59 20 4b   fig'(k PRIMARY K
-|   3600: 45 59 2c 20 76 29 20 57 49 54 48 4f 55 54 20 52   EY, v) WITHOUT R
-|   3616: 4f 57 49 44 5b 05 07 17 21 21 01 81 01 74 61 62   OWID[...!!...tab
-|   3632: 6c 65 74 31 5f 64 6f 63 73 69 7a 65 74 31 5f 64   let1_docsizet1_d
-|   3648: 6f 63 73 69 7a 65 05 43 52 45 41 54 45 20 54 41   ocsize.CREATE TA
-|   3664: 42 4c 45 20 27 74 31 5f 64 6f 63 73 69 7a 65 27   BLE 't1_docsize'
-|   3680: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
-|   3696: 41 52 59 20 4b 45 59 2c 20 73 7a 20 42 4c 4f 42   ARY KEY, sz BLOB
-|   3712: 29 5e 04 07 17 21 21 01 81 07 74 61 62 6c 65 74   )^...!!...tablet
-|   3728: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
-|   3744: 65 6e 74 04 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
-|   3760: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 69 64    't1_content'(id
-|   3776: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
-|   3792: 20 4b 45 59 2c 20 63 30 2c 20 63 31 2c 20 63 32    KEY, c0, c1, c2
-|   3808: 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65 74   )i.......-tablet
-|   3824: 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45 41   1_idxt1_idx.CREA
-|   3840: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64 78   TE TABLE 't1_idx
-|   3856: 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70   '(segid, term, p
-|   3872: 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59   gno, PRIMARY KEY
-|   3888: 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57   (segid, term)) W
-|   3904: 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07 17   ITHOUT ROWIDU...
-|   3920: 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61 74   .....tablet1_dat
-|   3936: 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45 20   at1_data.CREATE 
-|   3952: 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27 28   TABLE 't1_data'(
-|   3968: 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41   id INTEGER PRIMA
-|   3984: 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c   RY KEY, block BL
-|   4000: 4f 42 29 5b 01 07 17 11 11 08 81 23 74 61 62 6c   OB)[.......#tabl
-|   4016: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
-|   4032: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
-|   4048: 4e 47 20 66 74 73 35 28 61 2c 62 20 75 6e 69 6e   NG fts5(a,b unin
-|   4064: 64 65 78 65 64 2c 63 2c 74 6f 6b 65 6e 69 7a 65   dexed,c,tokenize
-|   4080: 3d 22 70 6f 72 74 65 72 20 61 73 63 69 69 22 29   =.porter ascii.)
-| page 2 offset 4096
-|      0: 0d 0f 68 00 05 0f 13 00 0f e6 0f 13 0f a8 0f 7c   ..h............|
-|     16: 0f 2a 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .*..............
-|   3856: 00 00 00 15 0a 03 00 30 00 00 00 00 01 03 03 00   .......0........
-|   3872: 03 01 01 01 02 01 01 03 01 01 37 8c 80 80 80 80   ..........7.....
-|   3888: 01 03 00 74 00 00 00 2e 02 30 61 03 02 02 01 01   ...t.....0a.....
-|   3904: 62 03 02 03 01 01 63 03 02 04 01 01 67 03 06 01   b.....c.....g...
-|   3920: 02 02 01 01 68 03 06 01 02 03 01 01 69 03 06 01   ....h.......i...
-|   3936: 02 04 04 06 06 06 08 08 0f ef 00 14 2a 00 00 00   ............*...
-|   3952: 00 01 02 02 00 02 01 01 01 02 01 01 25 88 80 80   ............%...
-|   3968: 80 80 01 03 00 50 00 00 00 1f 02 30 67 02 08 02   .....P.....0g...
-|   3984: 01 02 02 01 01 68 02 08 03 01 02 03 01 01 69 02   .....h........i.
-|   4000: 08 04 01 02 04 04 09 09 37 84 80 80 80 80 01 03   ........7.......
-|   4016: 00 74 00 00 00 2e 02 30 61 01 02 02 01 01 62 01   .t.....0a.....b.
-|   4032: 02 03 01 01 63 01 02 04 01 01 67 01 06 01 02 02   ....c.....g.....
-|   4048: 01 01 68 01 06 01 02 03 01 01 69 01 06 01 02 04   ..h.......i.....
-|   4064: 04 06 06 06 08 08 07 01 03 00 14 03 09 00 09 00   ................
-|   4080: 00 00 11 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
-| page 3 offset 8192
-|      0: 0a 00 00 00 03 00 00 00 00 00 00 00 00 00 00 00   ................
-|   4064: 00 00 00 00 00 00 00 00 00 00 00 00 06 04 01 0c   ................
-|   4080: 01 03 02 06 04 01 0c 01 02 02 05 04 09 0c 01 02   ................
-| page 4 offset 12288
-|      0: 0d 00 00 00 03 0f be 00 0f ea 0f d4 0f be 00 00   ................
-|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 14 03   ................
-|   4032: 05 00 17 17 17 61 20 62 20 63 67 20 68 20 69 67   .....a b cg h ig
-|   4048: 20 68 20 69 14 02 05 00 17 17 17 67 20 68 20 69    h i.......g h i
-|   4064: 61 20 62 20 63 67 20 68 20 69 14 01 05 00 17 17   a b cg h i......
-|   4080: 17 61 20 62 20 63 64 20 65 20 66 67 20 68 20 69   .a b cd e fg h i
-| page 5 offset 16384
-|      0: 0d 00 00 00 03 0f e8 00 0f f8 0f f0 0f e8 00 00   ................
-|   4064: 00 00 00 00 00 00 00 00 06 03 03 00 12 03 00 03   ................
-|   4080: 06 02 03 00 12 03 00 03 06 01 03 00 12 03 00 03   ................
-| page 6 offset 20480
-|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 01 00 00 00   ................
-|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
-| page 7 offset 24576
-|      0: 0d 00 00 00 03 0f 9e 00 0f e6 0f ef 00 00 00 00   ................
-|   3984: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 41 84   ..............A.
-|   4000: 80 80 80 80 01 04 00 81 06 00 00 00 34 02 30 61   ............4.0a
-|   4016: 01 01 01 01 01 62 01 01 01 01 01 63 01 01 01 01   .....b.....c....
-|   4032: 01 64 01 01 01 65 01 01 01 66 01 01 01 67 01 01   .d...e...f...g..
-|   4048: 01 01 01 68 01 01 01 01 01 69 01 01 01 04 06 06   ...h.....i......
-|   4064: 06 04 04 04 06 06 07 01 03 00 14 03 09 09 09 0f   ................
-|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
-| page 8 offset 28672
-|      0: 0a 00 00 00 01 0f fa 00 00 00 00 00 00 00 00 00   ................
-|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 12   ................
-| page 9 offset 32768
-|      0: 0d 00 00 00 03 0f be 00 0f ea 0f d4 0f be 00 00   ................
-|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 14 03   ................
-|   4032: 05 00 17 17 17 61 20 62 20 63 67 20 68 20 69 67   .....a b cg h ig
-|   4048: 20 68 20 69 14 02 05 00 17 17 17 67 20 68 20 69    h i.......g h i
-|   4064: 61 20 62 20 63 67 20 68 20 69 14 01 05 00 17 17   a b cg h i......
-|   4080: 17 61 20 62 20 63 64 20 65 20 66 67 20 68 20 69   .a b cd e fg h i
-| page 10 offset 36864
-|      0: 0a 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00   ................
-|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 00 00 00 00   ........vers....
-| end crash-f928a9c1ec68dd.db
-}]} {}
-
-do_catchsql_test 80.1 {
-SELECT snippet(rowid, -1, '.', '..', '[', '(]'),snippet(rowid, -1, '.', '.', '', '(]'), highlight(t1, 29, 1 , '') FROM t1('g+ h') WHERE rank MATCH 'bm25(1.0, 10)' ORDER BY NOT (SELECT 1 FROM t1('g+ æ') WHERE rank MATCH 'bm25(1.0, 10)' ORDER BY rank);
-} {1 {database disk image is malformed}}
-

 sqlite3_fts5_may_be_corrupt 0
 finish_test
@@ -1,798 +0,0 @@
-# 2015 Apr 24
-#
-# The author disclaims copyright to this source code.  In place of
-# a legal notice, here is a blessing:
-#
-#    May you do good and not evil.
-#    May you find forgiveness for yourself and forgive others.
-#    May you share freely, never taking more than you give.
-#
-#***********************************************************************
-#
-# This file tests that FTS5 handles corrupt databases (i.e. internal
-# inconsistencies in the backing tables) correctly. In this case 
-# "correctly" means without crashing.
-#
-
-source [file join [file dirname [info script]] fts5_common.tcl]
-set testprefix fts5corrupt3
-
-# If SQLITE_ENABLE_FTS5 is defined, omit this file.
-ifcapable !fts5 {
-  finish_test
-  return
-}
-sqlite3_fts5_may_be_corrupt 1
-database_may_be_corrupt
-
-#-------------------------------------------------------------------------
-# dbsqlfuzz crash-0f47112aa7520cf08c6a835a88fdff8c2a32a188
-#
-reset_db
-do_test 1.0 {
-  sqlite3 db {}
-  db deserialize [decode_hexdb {
-.open --hexdb
-| size 24576 pagesize 4096 filename crash-0f47112aa7520c.db
-| page 1 offset 0
-|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
-|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 00   .....@  ........
-|     96: 00 00 00 00 0d 00 00 00 06 0e 0f 00 0f aa 0f 53   ...............S
-|    112: 0e e8 0e 8b 0e 33 0e 0f 00 00 00 00 00 00 00 00   .....3..........
-|   3584: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 22   ................
-|   3600: 06 06 17 11 11 01 31 74 61 62 6c 65 62 62 62 62   ......1tablebbbb
-|   3616: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 62 62   .CREATE TABLE bb
-|   3632: 28 61 29 56 05 06 17 1f 1f 01 7d 74 61 62 6c 65   (a)V.......table
-|   3648: 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63 6f 6e 66   t1_configt1_conf
-|   3664: 69 67 05 43 52 45 41 54 45 20 54 41 42 4c 45 20   ig.CREATE TABLE 
-|   3680: 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b 20 50 52   't1_config'(k PR
-|   3696: 49 4d 41 52 59 20 4b 45 59 2c 20 76 29 20 57 49   IMARY KEY, v) WI
-|   3712: 54 48 4f 55 54 20 52 4f 57 49 44 5b 04 07 17 21   THOUT ROWID[...!
-|   3728: 21 01 81 01 74 61 62 6c 65 74 31 5f 64 6f 63 73   !...tablet1_docs
-|   3744: 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65 04 43 52   izet1_docsize.CR
-|   3760: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 64   EATE TABLE 't1_d
-|   3776: 6f 63 73 69 7a 65 27 28 69 64 20 49 4e 54 45 47   ocsize'(id INTEG
-|   3792: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
-|   3808: 73 7a 20 42 4c 4f 42 29 69 03 07 17 19 19 01 81   sz BLOB)i.......
-|   3824: 2d 74 61 62 6c 65 74 31 5f 69 64 78 74 31 5f 69   -tablet1_idxt1_i
-|   3840: 64 78 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   dx.CREATE TABLE 
-|   3856: 27 74 31 5f 69 64 78 27 28 73 65 67 69 64 2c 20   't1_idx'(segid, 
-|   3872: 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50 52 49 4d   term, pgno, PRIM
-|   3888: 41 52 59 20 4b 45 59 28 73 65 67 69 64 2c 20 74   ARY KEY(segid, t
-|   3904: 65 72 6d 29 29 20 57 49 54 48 4f 55 54 20 52 4f   erm)) WITHOUT RO
-|   3920: 57 49 44 55 02 07 17 1b 1b 01 81 01 74 61 62 6c   WIDU........tabl
-|   3936: 65 74 31 5f 64 61 74 61 74 31 5f 64 61 74 61 02   et1_datat1_data.
-|   3952: 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74 31   CREATE TABLE 't1
-|   3968: 5f 64 61 74 61 27 28 69 64 20 49 4e 54 45 47 45   _data'(id INTEGE
-|   3984: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 62   R PRIMARY KEY, b
-|   4000: 6c 6f 63 6b 20 42 4c 4f 42 29 54 01 07 17 11 11   lock BLOB)T.....
-|   4016: 08 81 15 74 61 62 6c 65 74 31 74 31 43 52 45 41   ...tablet1t1CREA
-|   4032: 54 45 20 56 49 52 54 55 41 4c 20 54 41 42 4c 45   TE VIRTUAL TABLE
-|   4048: 20 74 31 20 55 53 49 4e 47 20 66 74 73 35 28 61    t1 USING fts5(a
-|   4064: 2c 62 2c 70 72 65 66 69 78 3d 22 31 2c 32 2c 33   ,b,prefix=.1,2,3
-|   4080: 2c 34 22 2c 20 63 6f 6e 74 65 6e 74 3d 22 22 29   ,4., content=..)
-| page 2 offset 4096
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-|     32: 0e 8e 0e 6c 0e 4b 0e 29 0e 08 0d e6 0d c4 0d b5   ...l.K.)........
-|     48: 0d 97 0d 76 0d 54 0d 31 0d 15 0c f3 0c d3 0c b5   ...v.T.1........
-|     64: 0c 95 0c 73 0c 54 0c 32 0c 10 0b ee 0b cc 0b b0   ...s.T.2........
-|     80: 0b 8d 0b 7e 0b 48 0b 2e 0b 0b 0a ef 00 00 00 00   ...~.H..........
-|   2368: 00 00 00 00 00 00 00 00 00 00 00 00 15 0a 03 00   ................
-|   2384: 30 00 00 00 01 01 03 35 00 03 01 11 12 02 01 12   0......5........
-|   2400: 03 01 11 1c 8c 80 80 80 80 10 03 00 3e 00 00 00   ............>...
-|   2416: 17 01 05 05 34 74 61 62 6c 03 02 03 01 04 77 68   ....4tabl.....wh
-|   2432: 65 72 03 02 06 09 1b 8c 80 80 80 80 0f 03 00 3c   er.............<
-|   2448: 00 00 00 16 05 34 66 74 73 34 03 02 02 01 04 6e   .....4fts4.....n
-|   2464: 75 6d 62 03 06 01 04 09 1b 8c 80 80 80 80 0e 03   umb.............
-|   2480: 00 3c 00 00 00 16 04 33 74 68 65 03 06 01 01 04   .<.....3the.....
-|   2496: 01 03 77 68 65 03 02 04 04 0a 1b 8c 80 80 80 80   ..whe...........
-|   2512: 0d 03 00 3c 00 00 00 16 04 33 6e 75 6d 03 06 01   ...<.....3num...
-|   2528: 01 05 01 03 74 61 62 03 02 03 04 0a 19 8c 80 80   ....tab.........
-|   2544: 80 80 0c 03 00 38 00 00 00 14 03 32 77 68 03 02   .....8.....2wh..
-|   2560: 04 00 04 33 66 74 73 03 02 02 04 07 18 8c 80 80   ...3fts.........
-|   2576: 80 80 0b 03 00 36 00 00 00 13 03 32 74 61 03 02   .....6.....2ta..
-|   2592: 03 02 01 68 03 06 01 01 04 04 07 1b 8c 80 80 80   ...h............
-|   2608: 80 0a 03 00 3c 00 00 00 16 03 32 6e 75 03 06 01   ....<.....2nu...
-|   2624: 01 05 01 02 6f 66 03 06 01 01 06 04 09 19 8c 80   ....of..........
-|   2640: 80 80 80 09 03 00 38 00 00 00 14 03 32 66 74 03   ......8.....2ft.
-|   2656: 02 02 01 02 69 73 03 06 01 01 03 04 07 18 8c 80   ....is..........
-|   2672: 80 80 80 08 03 00 36 00 00 00 13 02 31 74 03 08   ......6.....1t..
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-|   2736: 80 80 80 06 03 00 36 00 00 00 03 04 02 31 66 03   ......6......1f.
-|   2752: 02 02 01 01 69 03 06 01 01 03 04 f6 1c 8c 80 80   ....i...........
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-|   2784: f6 01 01 04 01 05 77 68 65 72 65 03 02 04 0a 15   ......where.....
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-|   2944: 80 80 80 80 12 03 00 16 00 00 00 05 02 1c 88 80   ................
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-|   2976: 73 02 06 01 01 05 01 04 74 68 65 72 02 02 04 0b   s.......ther....
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-|   3088: 1b 88 80 80 80 80 0d 03 00 3c 00 00 00 16 13 32   .........<.....2
-|   3104: 74 68 02 08 02 01 01 07 00 04 33 61 6e 64 02 06   th........3and..
-|   3120: 04 0a 1b 88 80 80 80 80 0c 03 00 3c 00 00 00 16   ...........<....
-|   3136: 03 32 69 6e 02 06 01 01 06 01 02 72 6f 02 06 01   .2in.......ro...
-|   3152: 01 05 04 09 18 88 80 80 80 80 0b 03 00 36 00 00   .............6..
-|   3168: 00 13 02 03 32 61 72 02 02 03 01 02 62 65 02 02   ....2ar.....be..
-|   3184: 04 05 07 1b 88 80 80 80 80 0a 03 00 3c 00 9e 00   ............<...
-|   3200: 16 02 31 74 02 08 02 01 01 07 00 03 32 61 6e 02   ..1t........2an.
-|   3216: 06 01 01 04 09 19 88 80 80 80 80 09 03 00 38 00   ..............8.
-|   3232: 00 00 14 02 31 6e 02 06 01 01 03 01 01 72 02 06   ....1n.......r..
-|   3248: 01 01 05 04 08 17 88 80 80 80 80 08 03 00 34 00   ..............4.
-|   3264: 00 00 12 02 31 62 02 02 04 01 01 69 02 06 01 01   ....1b.....i....
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-|   3296: 14 04 02 31 32 02 02 05 01 01 61 02 08 03 01 01   ...12.....a.....
-|   3312: 02 05 06 1b 88 80 80 80 80 06 03 00 3c 00 00 00   ............<...
-|   3328: 16 06 30 74 68 65 72 65 02 02 02 00 02 31 31 02   ..0there.....11.
-|   3344: 06 01 01 04 0a 15 88 80 80 80 80 05 03 00 30 00   ..............0.
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-|   3408: 02 06 07 08 1b 88 80 80 80 80 03 03 00 3c 00 00   .............<..
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-|   3504: 02 02 05 04 08 08 84 80 80 80 80 12 03 00 16 00   ................
-|   3520: 00 00 05 04 1b 84 80 80 80 80 11 03 00 3c 00 00   .............<..
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-|   3552: 72 6d 01 02 04 0b 1b 84 80 80 80 80 10 03 00 3c   rm.............<
-|   3568: 00 00 00 16 05 34 65 61 63 68 01 02 03 01 04 70   .....4each.....p
-|   3584: 72 65 73 01 02 05 04 08 1a 84 80 80 80 80 0f 03   res.............
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-|   3616: 68 65 01 06 01 01 03 04 08 1b 84 80 80 80 80 0e   he..............
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-|   3648: 03 74 61 62 01 06 01 01 05 04 08 1a 84 80 80 80   .tab............
-|   3664: 80 0d 03 00 3a 00 00 00 15 04 33 66 6f 72 01 02   ....:.....3for..
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-|   3696: 80 80 0c 03 00 3c 00 00 00 17 03 32 74 68 01 06   .....<.....2th..
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-|   3744: 01 06 01 01 05 02 01 65 01 02 04 04 09 19 84 80   .......e........
-|   3760: 80 80 80 0a 03 00 38 00 00 00 14 03 32 69 6e 01   ......8.....2in.
-|   3776: 06 01 01 02 01 02 70 72 01 02 05 04 09 18 84 80   ......pr........
-|   3792: 80 80 80 09 03 00 36 00 00 00 13 03 32 66 6f 01   ......6.....2fo.
-|   3808: 02 02 02 01 74 01 06 01 01 04 04 07 1b 84 80 80   ....t...........
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-|   3840: 01 01 03 04 00 03 32 65 61 01 02 03 04 0a 17 84   ......2ea.......
-|   3856: 80 80 80 80 07 03 00 34 00 00 00 12 02 31 69 01   .......4.....1i.
-|   3872: 06 01 01 02 01 01 70 01 02 05 04 08 18 84 80 80   ......p.........
-|   3888: 80 80 06 03 00 36 00 00 00 13 02 31 65 01 02 03   .....6.....1e...
-|   3904: 01 01 66 01 08 02 01 01 04 04 06 1b 84 80 80 80   ..f.............
-|   3920: 80 05 03 00 3c 00 00 00 16 05 30 74 65 72 6d 01   ....<.....0term.
-|   3936: 02 04 02 02 68 65 01 06 01 01 03 04 09 14 84 80   ....he..........
-|   3952: 80 80 80 04 03 00 2e 00 00 00 10 06 30 64 61 62   ............0dab
-|   3968: 6c 65 01 06 01 01 05 04 15 84 80 80 80 80 03 03   le..............
-|   3984: 00 30 00 00 00 11 02 08 30 70 72 65 73 65 6e 74   .0......0present
-|   4000: 01 02 05 05 1b 84 80 80 80 80 02 03 00 3c 00 00   .............<..
-|   4016: 00 16 04 30 66 74 73 01 06 01 01 04 01 02 69 6e   ...0fts.......in
-|   4032: 01 06 01 01 04 0a 1a 84 80 80 80 80 01 03 00 3a   ...............:
-|   4048: 00 00 00 15 05 30 65 61 63 68 01 02 03 01 13 66   .....0each.....f
-|   4064: 6f 72 01 02 02 04 09 06 01 03 00 12 03 0b 0f 00   or..............
-|   4080: 00 08 8c 80 80 80 80 11 03 00 16 00 00 00 05 04   ................
-| page 3 offset 8192
-|      0: 0a 00 00 00 32 0e 4f 00 0f fa 0f f1 0f e9 0f e1   ....2.O.........
-|     16: 0f d8 0f d1 0f c9 0f c1 0f b9 0f b1 0f a9 0f a0   ................
-|     32: 0f 98 0f 90 0f 87 0f 80 0f 78 0f 71 0f 68 0f 5f   .........x.q.h._
-|     48: 0f 56 0f 4d 0f 41 0f 38 0f 2f 0f 26 0f 1d 0f 13   .V.M.A.8./.&....
-|     64: 0f 0a 0f 01 0e f7 0e ee 0e e6 0e dd 0e d6 0e cd   ................
-|     80: 0e c3 0e ba 0e 00 00 00 00 00 00 00 00 00 00 00   ................
-|   3648: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08   ................
-|   3664: 04 01 10 01 03 34 74 20 07 04 01 0e 01 03 34 1e   .....4t ......4.
-|   3680: 09 04 01 12 01 03 33 74 68 1c 08 04 01 10 01 03   ......3th.......
-|   3696: 33 6e 1a 08 04 01 10 01 03 32 77 18 08 04 01 10   3n.......2w.....
-|   3712: 01 03 32 74 16 08 04 01 10 01 03 32 6e 14 07 04   ..2t.......2n...
-|   3728: 01 0e 01 03 32 12 08 04 01 10 01 03 31 74 10 08   ....2.......1t..
-|   3744: 04 01 10 01 03 31 6e 0e 07 04 01 0e 01 03 31 0c   .....1n.......1.
-|   3760: 09 04 01 12 01 03 30 74 68 0a 08 04 01 10 01 03   ......0th.......
-|   3776: 30 74 08 09 04 01 12 01 03 30 6e 75 06 08 04 01   0t.......0nu....
-|   3792: 10 01 03 30 6e 04 06 04 01 0c 01 03 02 08 04 01   ...0n...........
-|   3808: 10 01 02 34 72 22 07 04 01 0e 01 02 34 20 08 04   ...4r.......4 ..
-|   3824: 01 10 01 02 33 72 1e 09 04 01 12 01 02 33 61 72   ....3r.......3ar
-|   3840: 1c 08 04 01 10 01 02 32 74 1a 08 04 01 10 01 02   .......2t.......
-|   3856: 32 69 18 09 04 01 12 01 02 32 61 72 16 08 04 01   2i.......2ar....
-|   3872: 10 01 02 31 74 14 08 04 01 10 01 02 31 6e 12 08   ...1t.......1n..
-|   3888: 04 01 10 01 02 31 62 10 08 04 01 10 01 02 31 32   .....1b.......12
-|   3904: 0e 0b 04 01 16 01 02 30 74 68 65 72 0c 08 04 01   .......0ther....
-|   3920: 10 01 02 30 74 0a 08 04 01 10 01 02 30 6e 08 08   ...0t.......0n..
-|   3936: 14 01 10 01 02 30 62 06 08 04 01 10 01 02 30 61   .....0b.......0a
-|   3952: 04 06 04 01 0c 01 02 02 07 04 09 10 01 34 74 22   .............4t.
-|   3968: 06 04 09 0e 01 34 20 08 04 09 12 01 33 74 65 1e   .....4 .....3te.
-|   3984: 07 04 09 10 01 33 70 1c 07 04 09 10 01 33 66 1a   .....3p......3f.
-|   4000: 08 04 09 12 01 32 74 68 18 07 04 09 10 01 32 74   .....2th......2t
-|   4016: 16 01 64 09 10 01 32 69 14 07 04 09 10 01 32 66   ..d...2i......2f
-|   4032: 12 07 04 09 10 01 31 74 10 07 04 09 10 01 31 69   ......1t......1i
-|   4048: 0e 06 04 09 0e 01 31 0c 08 04 09 12 01 30 74 65   ......1......0te
-|   4064: 0a 06 04 09 10 01 30 74 08 07 04 09 10 01 30 70   ......0t......0p
-|   4080: 06 08 04 09 12 00 00 00 00 00 00 00 00 00 00 00   ................
-| page 4 offset 12288
-|   4064: 00 00 00 00 00 00 00 00 00 00 00 05 03 03 00 10   ................
-|   4080: 03 05 05 02 03 00 10 04 06 05 01 03 00 10 04 04   ................
-| page 5 offset 16384
-|      0: 0a 00 00 00 02 0f eb 00 0f eb 0f f4 00 00 00 00   ................
-|   4064: 00 00 00 00 00 00 00 00 00 00 00 08 03 15 01 70   ...............p
-|   4080: 67 73 7a 18 0b 03 1b 01 76 65 72 73 69 6f 6e 04   gsz.....version.
-| page 6 offset 20480
-|      0: 0d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
-|   4080: 00 00 03 03 02 01 03 03 02 02 01 00 00 00 00 00   ................
-| end crash-0f47112aa7520c.db
-  }]
-} {}
-
-do_catchsql_test 1.1 {
-  SELECT * FROM t1('R*') WHERE (a,b)<=(current_date,0) ORDER BY rowid DESC;
-} {1 {database disk image is malformed}}
-
-#-------------------------------------------------------------------------
-#
-reset_db
-do_test 2.0 {
-  sqlite3 db {}
-  db deserialize [decode_hexdb {
-
-.open --hexdb
-| size 24576 pagesize 4096 filename sql047467.txt.db
-| page 1 offset 0
-|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
-|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 00   .....@  ........
-|     96: 00 00 00 00 0d 00 00 00 06 0e 0f 00 0f aa 0f 53   ...............S
-|    112: 0e e8 0e 8b 0e 33 0e 0f 01 00 00 00 00 00 00 00   .....3..........
-|   3584: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 22   ................
-|   3600: 06 06 17 11 11 01 31 74 61 62 6c 65 62 62 62 62   ......1tablebbbb
-|   3616: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 62 62   .CREATE TABLE bb
-|   3632: 28 61 29 56 05 06 17 1f 1f 01 7d 74 61 62 6c 65   (a)V.......table
-|   3648: 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63 6f 6e 66   t1_configt1_conf
-|   3664: 69 67 05 43 52 45 41 54 45 20 54 41 42 4c 45 20   ig.CREATE TABLE 
-|   3680: 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b 20 50 52   't1_config'(k PR
-|   3696: 49 4d 41 52 59 20 4b 45 59 2c 20 76 29 20 57 49   IMARY KEY, v) WI
-|   3712: 54 48 4f 55 54 20 52 4f 57 49 44 5b 04 07 17 21   THOUT ROWID[...!
-|   3728: 21 01 81 01 74 61 62 6c 65 74 31 5f 64 6f 63 73   !...tablet1_docs
-|   3744: 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65 04 43 52   izet1_docsize.CR
-|   3760: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 64   EATE TABLE 't1_d
-|   3776: 6f 63 73 69 7a 65 27 28 69 64 20 49 4e 54 45 47   ocsize'(id INTEG
-|   3792: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
-|   3808: 73 7a 20 42 4c 4f 42 29 69 03 07 17 19 19 01 81   sz BLOB)i.......
-|   3824: 2d 74 61 62 6c 65 74 31 5f 69 64 78 74 31 5f 69   -tablet1_idxt1_i
-|   3840: 64 78 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   dx.CREATE TABLE 
-|   3856: 27 74 31 5f 69 64 78 27 28 73 65 67 69 64 2c 20   't1_idx'(segid, 
-|   3872: 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50 52 49 4d   term, pgno, PRIM
-|   3888: 41 52 59 20 4b 45 59 28 73 65 67 69 64 2c 20 74   ARY KEY(segid, t
-|   3904: 65 72 6d 29 29 20 57 49 54 48 4f 55 54 20 52 4f   erm)) WITHOUT RO
-|   3920: 57 49 44 55 02 07 17 1b 1b 01 81 01 74 61 62 6c   WIDU........tabl
-|   3936: 65 74 31 5f 64 61 74 61 74 31 5f 64 61 74 61 02   et1_datat1_data.
-|   3952: 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74 31   CREATE TABLE 't1
-|   3968: 5f 64 61 74 61 27 28 69 64 20 49 4e 54 45 47 45   _data'(id INTEGE
-|   3984: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 62   R PRIMARY KEY, b
-|   4000: 6c 6f 63 6b 20 42 4c 4f 42 29 54 01 07 17 11 11   lock BLOB)T.....
-|   4016: 08 81 15 74 61 62 6c 65 74 31 74 31 43 52 45 41   ...tablet1t1CREA
-|   4032: 54 45 20 56 49 52 54 55 41 4c 20 54 41 42 4c 45   TE VIRTUAL TABLE
-|   4048: 20 74 31 20 55 53 49 4e 47 20 66 74 73 35 28 61    t1 USING fts5(a
-|   4064: 2c 62 2c 70 72 65 66 69 78 3d 22 31 2c 32 2c 33   ,b,prefix=.1,2,3
-|   4080: 2c 34 22 2c 20 63 6f 6e 74 65 6e 74 3d 22 22 29   ,4., content=..)
-| page 2 offset 4096
-|      0: 0d 0b 6a 00 37 09 4c 02 0f e7 09 4c 0f c6 0f a4   ..j.7.L....L....
-|     16: 0f 88 0f 6d 0f 4b 0f 2c 0f 0e 0e ec 0e cd 0e ad   ...m.K.,........
-|     32: 0e 8e 0e 6c 0e 4b 0e 29 0e 08 0d e6 0d c4 0d b5   ...l.K.)........
-|     48: 0d 97 0d 76 0d 54 0d 31 0d 15 0c f3 0c d3 0c b5   ...v.T.1........
-|     64: 0c 95 0c 73 0c 54 0c 32 0c 10 0b ee 0b cc 0b b0   ...s.T.2........
-|     80: 0b 8d 0b 7e 0b 48 0b 2e 0b 0b 0a ef 00 00 00 00   ...~.H..........
-|   2368: 00 00 00 00 00 00 00 00 00 00 00 00 15 0a 03 00   ................
-|   2384: 30 00 00 00 01 01 03 35 00 03 01 11 12 02 01 12   0......5........
-|   2400: 03 01 11 1c 8c 80 80 80 80 10 03 00 3e 00 00 00   ............>...
-|   2416: 17 01 05 05 34 74 61 62 6c 03 02 03 01 04 77 68   ....4tabl.....wh
-|   2432: 65 72 03 02 06 09 1b 8c 80 80 80 80 0f 03 00 3c   er.............<
-|   2448: 00 00 00 16 05 34 66 74 73 34 03 02 02 01 04 6e   .....4fts4.....n
-|   2464: 75 6d 62 03 06 01 04 09 1b 8c 80 80 80 80 0e 03   umb.............
-|   2480: 00 3b ff f0 00 16 04 33 74 68 65 03 06 01 01 04   .;.....3the.....
-|   2496: 01 03 77 68 65 03 02 04 04 0a 1b 8c 80 80 80 80   ..whe...........
-|   2512: 0d 03 00 3c 00 00 00 16 04 33 6e 75 6d 03 06 01   ...<.....3num...
-|   2528: 01 05 01 03 74 61 62 03 02 03 04 0a 19 8c 80 80   ....tab.........
-|   2544: 80 80 0c 03 00 38 00 00 00 14 03 32 77 68 03 02   .....8.....2wh..
-|   2560: 04 00 04 33 66 74 73 03 02 02 04 07 18 8c 80 80   ...3fts.........
-|   2576: 80 80 0b 03 00 36 00 00 00 13 03 32 74 61 03 02   .....6.....2ta..
-|   2592: 03 02 01 68 03 06 01 01 04 04 07 1b 8c 80 80 80   ...h............
-|   2608: 80 0a 03 00 3c 00 00 00 16 03 32 6e 75 03 06 01   ....<.....2nu...
-|   2624: 01 05 01 02 6f 66 03 06 01 01 06 04 09 19 8c 80   ....of..........
-|   2640: 80 80 80 09 03 00 38 00 00 00 14 03 32 66 74 03   ......8.....2ft.
-|   2656: 02 02 01 02 69 73 03 06 01 01 03 04 07 18 8c 80   ....is..........
-|   2672: 80 80 80 08 03 00 36 00 00 00 13 02 31 74 03 08   ......6.....1t..
-|   2688: 03 01 01 04 01 01 77 03 02 04 04 09 1a 8c 80 80   ......w.........
-|   2704: 80 80 07 03 00 3a 00 00 00 15 02 31 6e 03 08 01   .....:.....1n...
-|   2720: 01 02 05 01 00 6f 03 06 01 01 06 14 09 18 8c 80   .....o..........
-|   2736: 80 80 80 06 03 00 36 00 00 00 03 04 02 31 66 03   ......6......1f.
-|   2752: 02 02 01 01 69 03 06 01 01 03 04 f6 1c 8c 80 80   ....i...........
-|   2768: 80 80 05 03 00 3e 00 00 00 17 04 30 74 68 65 03   .....>.....0the.
-|   2784: f6 01 01 04 01 05 77 68 65 72 65 03 02 04 0a 15   ......where.....
-|   2800: 8c 80 80 80 80 04 03 00 30 00 00 00 11 01 01 06   ........0.......
-|   2816: 06 30 74 61 62 6c 65 0f 42 03 07 1c 8c 81 80 80   .0table.B.......
-|   2832: 80 03 03 00 3e 00 00 00 17 07 30 6e 75 6d 62 65   ....>.....0numbe
-|   2848: 72 03 06 01 01 05 01 02 6f 66 03 06 04 0d 13 8c   r.......of......
-|   2864: 80 80 80 80 02 03 00 2c 00 00 00 0f 01 01 03 02   .......,........
-|   2880: 30 6e 03 06 01 01 02 07 1b 8c 80 80 80 80 01 03   0n..............
-|   2896: 00 3c 00 00 00 16 08 30 66 74 73 34 61 75 78 03   .<.....0fts4aux.
-|   2912: 02 02 01 02 69 73 03 06 04 0c 00 00 00 14 2a 00   ....is........*.
-|   2928: 00 00 01 01 02 24 00 02 01 01 12 02 01 12 08 88   .....$..........
-|   2944: 80 80 80 80 12 03 00 16 00 00 00 05 02 1c 88 80   ................
-|   2960: 80 80 80 11 03 00 3e 00 00 00 17 05 34 72 6f 77   ......>.....4row
-|   2976: 73 02 06 01 01 05 01 04 74 68 65 72 02 02 04 0b   s.......ther....
-|   2992: 15 88 80 80 80 80 10 03 00 30 00 00 00 11 02 01   .........0......
-|   3008: 01 07 05 34 62 65 74 77 02 02 04 08 1b 88 80 80   ...4betw........
-|   3024: 80 80 0f 03 00 3c 00 00 00 16 04 04 33 72 6f 77   .....<......3row
-|   3040: 02 06 01 01 05 01 03 74 68 65 02 08 05 0a 1b 88   .......the......
-|   3056: 80 80 80 80 0e 03 00 3c 00 00 00 16 01 01 02 04   .......<........
-|   3072: 33 61 72 65 02 02 03 01 03 62 65 74 02 02 07 08   3are.....bet....
-|   3088: 1b 88 80 80 80 80 0d 03 00 3c 00 00 00 16 13 32   .........<.....2
-|   3104: 74 68 02 08 02 01 01 07 00 04 33 61 6e 64 02 06   th........3and..
-|   3120: 04 0a 1b 88 80 80 80 80 0c 03 00 3c 00 00 00 16   ...........<....
-|   3136: 03 32 69 6e 02 06 01 01 06 01 02 72 6f 02 06 01   .2in.......ro...
-|   3152: 01 05 04 09 18 88 80 80 80 80 0b 03 00 36 00 00   .............6..
-|   3168: 00 13 02 03 32 61 72 02 02 03 01 02 62 65 02 02   ....2ar.....be..
-|   3184: 04 05 07 1b 88 80 80 80 80 0a 03 00 3c 00 94 50   ............<..P
-|   3200: 16 02 31 74 02 08 02 01 01 07 00 03 32 61 6e 02   ..1t........2an.
-|   3216: 06 01 01 04 09 19 88 80 80 80 80 09 03 00 38 00   ..............8.
-|   3232: 00 00 14 02 31 6e 02 06 01 01 03 01 01 72 02 06   ....1n.......r..
-|   3248: 01 01 05 04 08 17 88 80 80 80 80 08 03 00 34 00   ..............4.
-|   3264: 00 00 12 02 31 62 02 02 04 01 01 69 02 06 01 01   ....1b.....i....
-|   3280: 06 04 06 19 88 80 80 80 80 07 03 00 38 00 00 00   ............8...
-|   3296: 14 04 02 31 32 02 02 05 01 01 61 02 08 03 01 01   ...12.....a.....
-|   3312: 02 05 06 1b 88 80 80 80 80 06 03 00 3c 00 00 00   ............<...
-|   3328: 16 06 30 74 68 65 72 65 02 02 02 00 02 31 31 02   ..0there.....11.
-|   3344: 06 01 01 04 0a 15 88 80 80 80 80 05 03 00 30 00   ..............0.
-|   3360: 00 00 11 01 01 05 04 30 74 68 65 02 06 01 01 07   .......0the.....
-|   3376: 07 1c 88 80 80 80 80 04 03 00 3e 00 00 00 17 01   ..........>.....
-|   3392: 01 06 02 30 6e 02 06 01 01 03 01 04 72 6f 77 73   ...0n.......rows
-|   3408: 02 06 07 08 1b 88 80 80 80 80 03 03 00 3c 00 00   .............<..
-|   3424: 00 16 08 30 62 65 74 77 65 65 6e 02 02 04 01 02   ...0between.....
-|   3440: 69 6e 02 06 04 0c 1a 88 80 80 80 80 02 03 00 3a   in.............:
-|   3456: 00 00 00 15 04 30 61 6e 64 02 06 01 01 02 02 02   .....0and.......
-|   3472: 72 65 02 02 03 04 0a 17 88 80 80 80 80 01 03 00   re..............
-|   3488: 34 00 00 00 12 02 30 31 02 06 01 01 04 01 01 32   4.....01.......2
-|   3504: 02 02 05 04 08 08 84 80 80 80 80 12 03 00 16 00   ................
-|   3520: 00 00 05 04 1b 84 80 80 80 80 11 03 00 3c 00 00   .............<..
-|   3536: 00 16 05 34 74 61 62 6c 01 06 01 01 05 02 03 65   ...4tabl.......e
-|   3552: 72 6d 01 02 04 0b 1b 84 80 80 80 80 10 03 00 3c   rm.............<
-|   3568: 00 00 00 16 05 34 65 61 63 68 01 02 03 01 04 70   .....4each.....p
-|   3584: 72 65 73 01 02 05 04 08 1a 84 80 80 80 80 0f 03   res.............
-|   3600: 00 3a 00 00 00 15 04 33 74 65 72 01 02 04 02 02   .:.....3ter.....
-|   3616: 68 65 01 06 01 01 03 04 08 1b 84 80 80 80 80 0e   he..............
-|   3632: 03 00 3c 00 00 00 16 04 33 80 72 65 01 02 05 01   ..<.....3.re....
-|   3648: 03 74 61 62 01 06 01 01 05 04 08 1a 84 80 80 80   .tab............
-|   3664: 80 0d 03 00 3a 00 00 00 15 04 33 66 6f 72 01 02   ....:.....3for..
-|   3680: 02 02 02 74 73 01 06 01 01 04 04 08 1b 84 80 80   ...ts...........
-|   3696: 80 80 0c 03 00 3c 00 00 00 17 03 32 74 68 01 06   .....<.....2th..
-|   3712: 01 01 03 00 04 33 65 61 63 01 02 03 04 09 18 84   .....3eac.......
-|   3728: 80 80 80 80 0b 03 00 36 00 00 00 13 03 32 74 61   .......6.....2ta
-|   3744: 01 06 01 01 05 02 01 65 01 02 04 04 09 19 84 80   .......e........
-|   3760: 80 80 80 0a 03 00 38 00 00 00 14 03 32 69 6e 01   ......8.....2in.
-|   3776: 06 01 01 02 01 02 70 72 01 02 05 04 09 18 84 80   ......pr........
-|   3792: 80 80 80 09 03 00 36 00 00 00 13 03 32 66 6f 01   ......6.....2fo.
-|   3808: 02 02 02 01 74 01 06 01 01 04 04 07 1b 84 80 80   ....t...........
-|   3824: 80 80 08 03 00 3c 00 00 00 16 02 31 74 01 0a 04   .....<.....1t...
-|   3840: 01 01 03 04 00 03 32 65 61 01 02 03 04 0a 17 84   ......2ea.......
-|   3856: 80 80 80 80 07 03 00 34 00 00 00 12 02 31 69 01   .......4.....1i.
-|   3872: 06 01 01 02 01 01 70 01 02 05 04 08 18 84 80 80   ......p.........
-|   3888: 80 80 06 03 00 36 00 00 00 13 02 31 65 01 02 03   .....6.....1e...
-|   3904: 01 01 66 01 08 02 01 01 04 04 06 1b 84 80 80 80   ..f.............
-|   3920: 80 05 03 00 3c 00 00 00 16 05 30 74 65 72 6d 01   ....<.....0term.
-|   3936: 02 04 02 02 68 65 01 06 01 01 03 04 09 14 84 80   ....he..........
-|   3952: 80 80 80 04 03 00 2e 00 00 00 10 06 30 64 61 62   ............0dab
-|   3968: 6c 65 01 06 01 01 05 04 15 84 80 80 80 80 03 03   le..............
-|   3984: 00 30 00 00 00 11 02 08 30 70 72 65 73 65 6e 74   .0......0present
-|   4000: 01 02 05 05 1b 84 80 80 80 80 02 03 00 3c 00 00   .............<..
-|   4016: 00 16 04 30 66 74 73 01 06 01 01 04 01 02 69 6e   ...0fts.......in
-|   4032: 01 06 01 01 04 0a 1a 84 80 80 80 80 01 03 00 3a   ...............:
-|   4048: 00 00 00 15 05 30 65 61 63 68 01 02 03 01 13 66   .....0each.....f
-|   4064: 6f 72 01 02 02 04 09 06 01 03 00 12 03 0b 0f 00   or..............
-|   4080: 00 08 8c 80 80 80 80 11 03 00 16 00 00 00 05 04   ................
-| page 3 offset 8192
-|      0: 0a 00 00 00 32 0e 4f 00 0f fa 0f f1 0f e9 0f e1   ....2.O.........
-|     16: 0f d8 0f d1 0f c9 0f c1 0f b9 0f b1 0f a9 0f a0   ................
-|     32: 0f 98 0f 90 0f 87 0f 80 0f 78 0f 71 0f 68 0f 5f   .........x.q.h._
-|     48: 0f 56 0f 4d 0f 41 0f 38 0f 2f 0f 26 0f 1d 0f 13   .V.M.A.8./.&....
-|     64: 0f 0a 0f 01 0e f7 0e ee 0e e6 0e dd 0e d6 0e cd   ................
-|     80: 0e c3 0e ba 0e 00 00 00 00 00 00 00 00 00 00 00   ................
-|   3648: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08   ................
-|   3664: 04 01 10 01 03 34 74 20 07 04 01 0e 01 03 34 1e   .....4t ......4.
-|   3680: 09 04 01 12 01 03 33 74 68 1c 08 04 01 10 01 03   ......3th.......
-|   3696: 33 6e 1a 08 04 01 10 01 03 32 77 18 08 04 01 10   3n.......2w.....
-|   3712: 01 03 32 74 16 08 04 01 10 01 03 32 6e 14 07 04   ..2t.......2n...
-|   3728: 01 0e 01 03 32 12 08 04 01 10 01 03 31 74 10 08   ....2.......1t..
-|   3744: 04 01 10 01 03 31 6e 0e 07 04 01 0e 01 03 31 0c   .....1n.......1.
-|   3760: 09 04 01 12 01 03 30 74 68 0a 08 04 01 10 01 03   ......0th.......
-|   3776: 30 74 08 09 04 01 12 01 03 30 6e 75 06 08 04 01   0t.......0nu....
-|   3792: 10 01 03 30 6e 04 06 04 01 0c 01 03 02 08 04 01   ...0n...........
-|   3808: 10 01 02 34 72 22 07 04 01 0e 01 02 34 20 08 04   ...4r.......4 ..
-|   3824: 01 10 01 02 33 72 1e 09 04 01 12 01 02 33 61 72   ....3r.......3ar
-|   3840: 1c 08 04 01 10 01 02 32 74 1a 08 04 01 10 01 02   .......2t.......
-|   3856: 32 69 18 09 04 01 12 01 02 32 61 72 16 08 04 01   2i.......2ar....
-|   3872: 10 01 02 31 74 14 08 04 01 10 01 02 31 6e 12 08   ...1t.......1n..
-|   3888: 04 01 10 01 02 31 62 10 08 04 01 10 01 02 31 32   .....1b.......12
-|   3904: 0e 0b 04 01 16 01 02 30 74 68 65 72 0c 08 04 01   .......0ther....
-|   3920: 10 01 02 30 74 0a 08 04 01 10 01 02 30 6e 08 08   ...0t.......0n..
-|   3936: 14 01 10 01 02 30 62 06 08 04 01 10 01 02 30 61   .....0b.......0a
-|   3952: 04 06 04 01 0c 01 02 02 07 04 09 10 01 34 74 22   .............4t.
-|   3968: 06 04 09 0e 01 34 20 08 04 09 12 01 33 74 65 1e   .....4 .....3te.
-|   3984: 07 04 09 10 01 33 70 1c 07 04 09 10 01 33 66 1a   .....3p......3f.
-|   4000: 08 04 09 12 01 32 74 68 18 07 04 09 10 01 32 74   .....2th......2t
-|   4016: 16 01 64 09 10 01 32 69 14 07 04 09 10 01 32 66   ..d...2i......2f
-|   4032: 12 07 04 09 10 01 31 74 10 07 04 09 10 01 31 69   ......1t......1i
-|   4048: 0e 06 04 09 0e 01 31 0c 08 04 09 12 01 30 74 65   ......1......0te
-|   4064: 0a 06 04 09 10 01 30 74 08 07 04 09 10 01 30 70   ......0t......0p
-|   4080: 06 08 04 09 12 00 00 00 00 00 00 00 00 00 00 00   ................
-| page 4 offset 12288
-|   4064: 00 00 00 00 00 00 00 00 00 00 00 05 03 03 00 10   ................
-|   4080: 03 05 05 02 03 00 10 04 06 05 01 03 00 10 04 04   ................
-| page 5 offset 16384
-|      0: 0a 00 00 00 02 0f eb 00 0f eb 0f f4 00 00 00 00   ................
-|   4064: 00 00 00 00 00 00 00 00 00 00 00 08 03 15 01 70   ...............p
-|   4080: 67 73 7a 18 0b 03 1b 01 76 65 72 73 69 6f 6e 04   gsz.....version.
-| page 6 offset 20480
-|      0: 0d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
-|   4080: 00 00 03 03 02 01 03 03 02 02 01 00 00 00 00 00   ................
-| end sql047467.txt.db
-}]} {}
-
-do_catchsql_test 2.1 {
-SELECT * FROM t1('R*R*R*R*') WHERE (a,b)<=(current_date,0) ORDER BY rowid DESC;
-} {1 {database disk image is malformed}}
-
-#-------------------------------------------------------------------------
-reset_db
-do_test 3.0 {
-  sqlite3 db {}
-  db deserialize [decode_hexdb {
-.open --hexdb
-| size 32768 pagesize 4096 filename crash-c69fcaceff1e50.db
-| page 1 offset 0
-|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
-|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 08   .....@  ........
-|     32: 00 00 00 02 00 00 00 01 00 00 00 09 00 00 00 04   ................
-|     96: 00 00 00 00 0d 0f c7 00 07 0d 92 00 0f 8d 0f 36   ...............6
-|    112: 0e cb 0e 6b 0e 0e 0d b6 0d 92 0d 92 00 00 00 00   ...k............
-|   3472: 00 00 22 08 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
-|   3488: 32 74 32 08 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
-|   3504: 20 74 32 28 78 29 56 07 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
-|   3520: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
-|   3536: 6f 6e 66 69 67 07 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
-|   3552: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
-|   3568: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
-|   3584: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 06    WITHOUT ROWID[.
-|   3600: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
-|   3616: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
-|   3632: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
-|   3648: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
-|   3664: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
-|   3680: 59 2c 20 73 7a 20 42 4c 4f 42 29 5e 05 07 17 21   Y, sz BLOB)^...!
-|   3696: 21 01 81 07 74 61 62 6c 65 74 31 5f 63 6f 6e 74   !...tablet1_cont
-|   3712: 65 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 05 43 52   entt1_content.CR
-|   3728: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63   EATE TABLE 't1_c
-|   3744: 6f 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47   ontent'(id INTEG
-|   3760: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
-|   3776: 63 30 2c 20 63 31 2c 20 63 32 29 69 04 07 17 19   c0, c1, c2)i....
-|   3792: 19 01 81 2d 74 61 62 6c 65 74 31 5f 69 64 78 74   ...-tablet1_idxt
-|   3808: 31 5f 69 64 78 04 43 52 45 41 54 45 20 54 41 42   1_idx.CREATE TAB
-|   3824: 4c 45 20 27 74 31 5f 69 64 78 27 28 73 65 67 69   LE 't1_idx'(segi
-|   3840: 64 2c 20 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50   d, term, pgno, P
-|   3856: 52 49 4d 41 52 59 20 4b 45 59 28 73 65 67 69 64   RIMARY KEY(segid
-|   3872: 2c 20 74 65 72 6d 29 29 20 57 49 54 48 4f 55 54   , term)) WITHOUT
-|   3888: 20 52 4f 57 49 44 55 03 07 17 1b 1b 01 81 01 74    ROWIDU........t
-|   3904: 61 62 6c 65 74 31 5f 64 61 74 61 74 31 5f 64 61   ablet1_datat1_da
-|   3920: 74 61 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   ta.CREATE TABLE 
-|   3936: 27 74 31 5f 64 61 74 61 27 28 69 64 20 49 4e 54   't1_data'(id INT
-|   3952: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
-|   3968: 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 38 02 06   , block BLOB)8..
-|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
-|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
-|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 35   LE t1 USING fts5
-|   4032: 28 61 2c 62 2c 63 29 00 00 00 00 00 00 00 00 00   (a,b,c).........
-| page 3 offset 8192
-|      0: 0d 00 00 00 03 0c 94 00 0f e6 0f ef 0c 94 00 00   ................
-|   3216: 00 00 00 00 86 4a 84 80 80 80 80 01 04 00 8d 18   .....J..........
-|   3232: 00 00 01 bb 02 30 30 01 02 06 01 02 06 01 02 06   .....00.........
-|   3248: 1f 02 03 01 02 03 01 02 03 01 08 32 30 31 36 30   ...........20160
-|   3264: 36 30 39 01 02 07 01 02 07 01 02 07 01 01 34 01   609...........4.
-|   3280: 02 05 01 02 05 01 02 05 01 01 35 01 02 04 01 02   ..........5.....
-|   3296: 04 01 02 04 02 07 30 30 30 30 30 30 30 1c 02 04   ......0000000...
-|   3312: 01 02 04 01 02 04 01 06 62 69 6e 61 72 79 03 06   ........binary..
-|   3328: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
-|   3344: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
-|   3360: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
-|   3376: 03 06 01 02 02 03 06 01 02 02 01 08 63 6f 6d 70   ............comp
-|   3392: 69 6c 65 72 01 02 02 01 02 02 01 02 02 01 06 64   iler...........d
-|   3408: 62 73 74 61 74 07 02 03 01 02 03 01 02 03 02 04   bstat...........
-|   3424: 65 62 75 67 04 02 02 01 02 02 01 02 02 01 06 65   ebug...........e
-|   3440: 6b b1 62 6c 65 07 02 02 01 02 02 01 02 02 01 02   k.ble...........
-|   3456: 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02   ................
-|   3472: 01 02 02 01 02 02 05 02 02 01 02 02 01 02 02 01   ................
-|   3488: 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02   ................
-|   3504: 02 01 02 02 02 08 78 74 65 6e 73 69 6f 6e 1f 02   ......xtension..
-|   3520: 04 01 02 04 01 02 04 01 04 66 74 73 34 1a 02 03   .........fts4...
-|   3536: 01 02 03 01 02 03 04 01 35 0d 02 03 01 02 03 01   ........5.......
-|   3552: 02 03 01 03 67 63 63 01 02 03 01 02 03 01 02 03   ....gcc.........
-|   3568: 02 06 65 6f 70 6f 6c 79 10 02 03 01 02 03 01 02   ..eopoly........
-|   3584: 03 01 05 6a 73 6f 6e 31 13 02 03 01 02 03 01 02   ...json1........
-|   3600: 03 01 04 6c 6f 61 64 1f 02 03 01 02 03 01 02 03   ...load.........
-|   3616: 01 03 6d 61 78 1c 02 02 01 02 02 01 02 02 02 05   ..max...........
-|   3632: 65 6d 6f 72 79 1c 02 03 01 02 03 01 02 03 04 04   emory...........
-|   3648: 73 79 73 35 16 02 03 01 02 03 01 02 03 01 06 6e   sys5...........n
-|   3664: 6f 63 61 73 65 02 06 01 02 02 03 06 01 02 02 03   ocase...........
-|   3680: 06 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06   ................
-|   3696: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
-|   3712: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
-|   3728: 02 01 04 6f 6d 69 74 1f 02 02 01 02 02 01 02 01   ...omit.........
-|   3744: ff ff ff ff ff ff ff ff ff ff ff ff ff ff f1 02   ................
-|   3760: 58 81 96 4d 01 06 01 02 02 03 06 01 02 02 03 06   X..M............
-|   3776: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
-|   3792: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
-|   3808: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
-|   3824: 01 0a 74 68 72 65 61 64 73 61 66 65 22 02 02 01   ..threadsafe....
-|   3840: 02 02 01 02 02 01 04 76 74 61 62 07 02 04 01 02   .......vtab.....
-|   3856: 04 01 02 04 01 01 78 01 06 01 01 02 01 06 01 01   ......x.........
-|   3872: 02 01 06 01 c6 02 01 06 01 01 02 01 06 01 01 02   ................
-|   3888: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
-|   3904: 06 01 01 02 00 f6 01 01 02 01 06 01 01 02 01 06   ................
-|   3920: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
-|   3936: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
-|   3952: 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02   ................
-|   3968: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
-|   3984: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
-|   4000: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
-|   4016: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
-|   4032: 02 01 06 01 01 02 01 06 01 01 02 04 15 13 0c 0c   ................
-|   4048: 12 44 13 11 0f 47 13 0f 0c 0e 11 10 0f 0e 10 0f   .D...G..........
-|   4064: 44 0f 10 40 15 0f 07 01 03 00 14 24 5a 24 24 0f   D..@.......$Z$$.
-|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
-| page 4 offset 12288
-|      0: 0a 00 00 00 01 0f fa 00 0f fa 00 00 00 00 00 00   ................
-|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
-| page 7 offset 24576
-|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
-|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
-| end crash-c69fcaceff1e50.db
-}]} {}
-
-do_catchsql_test 3.1 {
-  UPDATE t1 SET b=quote(zeroblob(200)) WHERE a MATCH 'thra*T';
-} {1 {database disk image is malformed}}
-
-#-------------------------------------------------------------------------
-reset_db
-do_test 4.0 {
-  sqlite3 db {}
-  db deserialize [decode_hexdb {
-.open --hexdb
-| size 24576 pagesize 4096 filename crash-ef6738247b1344.db
-| page 1 offset 0
-|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
-|     16: 10 00 01 01 00 40 20 20 00 10 00 06 40 00 00 06   .....@  ....@...
-|     32: 00 00 00 00 00 00 00 00 00 00 00 06 00 00 00 00   ................
-|     96: 00 00 00 00 0d 00 00 00 06 0e 0f 00 0f aa 0f 53   ...............S
-|    112: 0e e8 0e 8b 0e 33 0e 0f 00 00 00 00 00 00 00 00   .....3..........
-|   3584: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 22   ................
-|   3600: 06 06 17 11 11 01 31 74 61 62 6c 65 62 62 62 62   ......1tablebbbb
-|   3616: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 62 62   .CREATE TABLE bb
-|   3632: 28 61 29 56 05 06 17 1f 1f 01 7d 74 61 62 6c 65   (a)V.......table
-|   3648: 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63 6f 6e 66   t1_configt1_conf
-|   3664: 69 67 05 43 52 45 41 54 45 20 54 41 42 4c 45 20   ig.CREATE TABLE 
-|   3680: 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b 20 50 52   't1_config'(k PR
-|   3696: 49 4d 41 52 59 20 4b 45 59 2c 20 76 29 20 57 49   IMARY KEY, v) WI
-|   3712: 54 48 4f 55 54 20 52 4f 57 49 44 5b 04 07 17 21   THOUT ROWID[...!
-|   3728: 21 01 81 01 74 61 62 6c 65 74 31 5f 64 6f 63 73   !...tablet1_docs
-|   3744: 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65 04 43 52   izet1_docsize.CR
-|   3760: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 64   EATE TABLE 't1_d
-|   3776: 6f 63 73 69 7a 65 27 28 69 64 20 49 4e 54 45 47   ocsize'(id INTEG
-|   3792: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
-|   3808: 73 7a 20 42 4c 4f 42 29 69 03 07 17 19 19 01 81   sz BLOB)i.......
-|   3824: 2d 74 61 62 6c 65 74 31 5f 69 64 78 74 31 5f 69   -tablet1_idxt1_i
-|   3840: 64 78 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   dx.CREATE TABLE 
-|   3856: 27 74 31 5f 69 64 78 27 28 73 65 67 69 64 2c 20   't1_idx'(segid, 
-|   3872: 74 65 72 6d 2c 20 6f 67 6e 6f 2c 20 50 52 49 4d   term, ogno, PRIM
-|   3888: 41 52 59 20 4b 45 59 28 73 65 67 69 64 2c 20 74   ARY KEY(segid, t
-|   3904: 65 72 6d 29 29 20 57 49 54 48 4f 55 54 20 52 4f   erm)) WITHOUT RO
-|   3920: 57 49 44 55 35 07 17 1b 1b 01 81 01 74 61 62 6c   WIDU5.......tabl
-|   3936: 65 74 31 5f 64 61 74 61 74 31 5f 64 61 74 61 02   et1_datat1_data.
-|   3952: 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74 31   CREATE TABLE 't1
-|   3968: 5f 64 61 74 61 27 28 69 64 20 49 4e 54 45 47 45   _data'(id INTEGE
-|   3984: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 62   R PRIMARY KEY, b
-|   4000: 6c 6f 63 6b 20 42 4c 4f 42 29 54 01 07 17 11 11   lock BLOB)T.....
-|   4016: 08 81 15 74 61 62 6c 65 74 31 74 31 43 52 45 41   ...tablet1t1CREA
-|   4032: 54 45 20 56 49 52 54 55 41 4c 20 54 41 42 4c 45   TE VIRTUAL TABLE
-|   4048: 20 74 31 20 55 53 49 4e 47 20 66 74 73 35 28 61    t1 USING fts5(a
-|   4064: 2c 62 2c 70 72 65 66 69 78 3d 22 31 2c 32 2c 33   ,b,prefix=.1,2,3
-|   4080: 2c 34 22 2c 20 63 6f 6e 74 65 6e 74 3d 22 22 29   ,4., content=..)
-| page 2 offset 4096
-|      0: 0d 0b 6a 00 37 09 4c 02 0f e7 09 4c 0f c6 0f a4   ..j.7.L....L....
-|     16: 0f 88 0f 6d 0f 4b 0f 2c 0f 0e 0e ec 0e cd 0e ad   ...m.K.,........
-|     32: 0e 8e 0e 6c 0e 4b 0e 29 0e 08 0d e6 0d c4 0d b5   ...l.K.)........
-|     48: 0d 97 0d 76 0d 54 0d 31 0d 15 0c f3 0c d3 0c b5   ...v.T.1........
-|     64: 0c 95 0c 73 0c 54 0c 32 0c 10 0b ee 0b cc 0b b0   ...s.T.2........
-|     80: 0b 8d 0b 7e 0b 48 0b 2e 0b 0b 0a ef 0a cc 0a 00   ...~.H..........
-|   2368: 00 00 00 00 00 00 00 00 00 00 00 00 15 0a 03 00   ................
-|   2384: 30 00 00 00 01 01 03 35 00 03 01 01 12 02 01 12   0......5........
-|   2400: 03 01 11 1c 8c 80 80 80 80 10 02 9c 3e 00 00 00   ............>...
-|   2416: 17 01 05 05 34 74 61 62 6c 03 02 03 01 04 77 68   ....4tabl.....wh
-|   2432: 65 72 03 02 06 09 1b 8c 80 80 80 80 0f 03 00 3c   er.............<
-|   2448: 00 00 00 16 05 34 66 74 73 34 03 02 02 01 04 6e   .....4fts4.....n
-|   2464: 75 6d 62 03 06 01 04 09 1b 8c 80 80 80 80 0e 03   umb.............
-|   2480: 00 3c 00 00 00 16 04 33 74 68 65 03 06 01 01 04   .<.....3the.....
-|   2496: 01 03 77 68 65 03 02 04 04 0a 1b 8c 80 80 80 80   ..whe...........
-|   2512: 0d 03 00 3c 00 00 00 16 04 33 6e 75 6d 03 06 01   ...<.....3num...
-|   2528: 01 05 01 03 74 61 62 03 02 03 04 0a 19 8c 80 80   ....tab.........
-|   2544: 80 80 0c 03 00 38 00 00 00 14 03 32 77 68 03 02   .....8.....2wh..
-|   2560: 04 00 04 33 66 74 73 03 12 02 04 07 18 8c 80 80   ...3fts.........
-|   2576: 80 80 0b 03 00 36 00 00 00 13 03 32 74 61 03 02   .....6.....2ta..
-|   2592: 03 02 01 68 03 06 01 01 04 04 07 1b 8c 80 80 80   ...h............
-|   2608: 80 0a 03 00 3c 00 00 00 16 03 32 6e 75 03 06 01   ....<.....2nu...
-|   2624: 01 05 01 02 6f 66 03 06 01 01 06 04 09 19 8c 80   ....of..........
-|   2640: 82 d0 80 09 03 00 38 00 00 00 14 03 32 66 74 03   ......8.....2ft.
-|   2656: 02 02 01 02 69 73 03 06 01 01 03 04 07 18 8c 80   ....is..........
-|   2672: 80 80 80 08 03 00 36 00 00 00 13 02 31 74 03 08   ......6.....1t..
-|   2688: 03 01 01 04 01 01 77 03 02 04 04 09 1a 8c 80 80   ......w.........
-|   2704: 80 80 07 03 00 3a 00 00 00 15 02 31 6e 03 08 01   .....:.....1n...
-|   2720: 01 02 05 01 01 6f 03 06 01 01 06 04 09 18 8c 80   .....o..........
-|   2736: 81 80 80 06 03 00 36 00 00 00 13 04 12 31 66 03   ......6......1f.
-|   2752: 02 02 01 01 69 03 06 01 01 03 05 06 1c 8c 80 80   ....i...........
-|   2768: 80 80 05 03 00 3e 00 00 00 17 04 30 74 68 65 03   .....>.....0the.
-|   2784: 06 01 01 04 01 05 77 68 65 72 65 03 02 04 0a 15   ......where.....
-|   2800: 8c 80 65 80 80 04 03 00 30 00 00 00 11 01 01 06   ..e.....0.......
-|   2816: 06 30 74 61 62 6c 65 03 02 03 07 1c 8c 80 80 80   .0table.........
-|   2832: 80 03 03 00 3e 00 00 00 17 07 30 6e 75 6d 62 65   ....>.....0numbe
-|   2848: 72 03 06 01 01 05 01 02 6f 66 03 06 04 0d 13 8c   r.......of......
-|   2864: 80 80 80 80 02 03 00 2c 00 00 00 0f fc 01 03 02   .......,........
-|   2880: 30 6e 03 06 01 00 f2 07 1b 8c 80 80 80 80 01 03   0n..............
-|   2896: 00 3c 00 00 00 16 08 30 66 74 73 34 61 75 78 03   .<.....0fts4aux.
-|   2912: 03 02 01 02 69 73 03 06 04 0c 00 00 00 18 ea 00   ....is..........
-|   2928: 00 00 01 01 02 24 00 02 01 01 12 02 01 12 08 88   .....$..........
-|   2944: 80 80 80 80 12 03 00 12 10 00 00 05 02 1c 88 80   ................
-|   2960: 80 80 80 11 03 00 3e 00 00 00 17 05 34 72 6f 77   ......>.....4row
-|   2976: 73 02 06 01 01 05 01 04 74 68 65 72 02 02 04 0b   s.......ther....
-|   2992: 15 88 80 80 80 80 10 03 00 2f ff ff f0 11 02 01   ........./......
-|   3008: 01 07 05 34 62 65 74 77 02 02 04 08 1b 88 80 80   ...4betw........
-|   3024: 80 80 0f cf 00 3c 00 00 00 16 04 04 33 72 6f 77   .....<......3row
-|   3040: 02 06 01 01 05 01 03 74 68 65 02 08 05 0a 1b 88   .......the......
-|   3056: 80 80 80 80 0d 03 00 3c 00 00 00 16 00 01 02 04   .......<........
-|   3072: 33 61 72 65 02 02 03 01 03 62 65 74 02 02 07 08   3are.....bet....
-|   3088: 1b 88 80 80 80 80 0d 03 00 3c 00 00 00 16 03 32   .........<.....2
-|   3104: 74 68 02 08 02 01 01 07 00 04 33 61 6e 64 02 06   th........3and..
-|   3120: 04 0a 1b 88 80 80 80 80 0c 03 00 3c 00 00 00 16   ...........<....
-|   3136: 03 32 69 6e 02 06 01 01 06 01 02 72 6f 02 06 01   .2in.......ro...
-|   3152: 01 05 04 09 18 88 80 80 80 80 0b 03 00 36 00 00   .............6..
-|   3168: 00 13 02 03 32 61 72 02 02 03 01 02 62 65 02 02   ....2ar.....be..
-|   3184: 04 05 07 1b 88 80 80 80 80 0a 03 00 3c 00 00 00   ............<...
-|   3200: 16 12 31 74 02 08 02 01 01 07 00 03 32 61 6e 02   ..1t........2an.
-|   3216: 06 01 01 04 09 19 88 80 80 80 80 09 03 00 38 00   ..............8.
-|   3232: 00 00 14 02 31 6e 02 06 01 01 03 01 01 72 02 06   ....1n.......r..
-|   3248: 01 01 05 04 08 17 78 80 80 80 80 08 03 00 34 10   ......x.......4.
-|   3264: 01 00 12 02 31 62 02 02 04 01 01 69 02 06 01 01   ....1b.....i....
-|   3280: 06 04 06 19 88 80 80 80 80 07 03 00 38 00 00 00   ............8...
-|   3296: 14 04 02 31 32 02 02 05 01 01 61 02 08 03 01 01   ...12.....a.....
-|   3312: 02 05 06 1b 88 80 80 80 80 06 03 00 3c 00 00 00   ............<...
-|   3328: 16 06 30 74 68 65 72 65 e7 02 02 00 02 31 31 02   ..0there.....11.
-|   3344: 06 01 01 04 0a 15 88 80 80 80 80 05 03 00 30 00   ..............0.
-|   3360: 00 00 11 01 01 05 e5 30 74 68 65 02 06 01 01 07   .......0the.....
-|   3376: 07 1c 88 80 80 80 80 04 03 00 3e 00 00 00 17 01   ..........>.....
-|   3392: 01 06 02 30 6e 02 06 01 01 03 01 04 72 6f 77 73   ...0n.......rows
-|   3408: 02 06 07 08 1b 88 80 80 80 80 03 03 00 3c 00 00   .............<..
-|   3424: 00 16 08 30 62 65 74 77 65 65 6e 02 02 04 01 02   ...0between.....
-|   3440: 69 6e 02 06 04 0c 1a 88 80 80 80 80 02 03 00 3a   in.............:
-|   3456: 00 00 00 15 04 30 61 6e 64 02 06 01 01 02 02 02   .....0and.......
-|   3472: 72 65 02 02 03 04 0a 17 88 80 80 80 80 01 03 00   re..............
-|   3488: 34 01 00 00 12 02 30 31 02 06 01 01 04 01 01 32   4.....01.......2
-|   3504: 02 02 05 04 08 08 84 80 80 80 80 12 03 00 16 00   ................
-|   3520: 00 00 05 04 1b 84 80 80 80 80 11 03 00 3c 00 00   .............<..
-|   3536: 00 16 05 34 74 61 62 6c 01 06 01 01 05 02 03 65   ...4tabl.......e
-|   3552: 72 6d 01 02 04 0b 1b 84 80 80 80 80 10 03 00 3c   rm.............<
-|   3568: 00 00 00 16 05 34 65 61 63 68 01 02 02 01 04 70   .....4each.....p
-|   3584: 72 65 73 01 02 05 04 09 1a 84 80 80 80 80 0f 03   res.............
-|   3600: 00 3a 00 00 00 15 04 33 74 65 72 01 02 04 02 02   .:.....3ter.....
-|   3616: 68 65 01 06 01 01 03 04 08 1b 84 80 80 80 80 0e   he..............
-|   3632: 03 00 3c 00 00 00 16 04 33 70 72 65 01 02 05 01   ..<.....3pre....
-|   3648: 03 74 61 62 01 06 01 01 05 04 08 1a 84 80 80 80   .tab............
-|   3664: 80 0d 03 0d 1a 00 00 00 15 04 33 66 6e 72 01 02   ..........3fnr..
-|   3680: 02 02 02 74 73 01 06 01 01 04 04 08 1b 84 80 80   ...ts...........
-|   3696: 80 80 0c 03 00 3c 00 00 00 16 03 32 74 68 01 06   .....<.....2th..
-|   3712: 01 01 03 00 04 33 65 61 63 01 02 03 04 09 18 84   .....3eac.......
-|   3728: 80 80 80 80 0b 03 00 36 00 00 00 13 03 32 74 61   .......6.....2ta
-|   3744: 01 06 01 01 05 02 01 65 01 02 04 04 09 19 84 80   .......e........
-|   3760: 80 80 80 0a 03 00 38 00 00 00 14 03 30 c9 6e 01   ......8.....0.n.
-|   3776: 06 01 01 02 01 02 70 72 01 02 05 04 09 18 84 80   ......pr........
-|   3792: 80 80 80 09 03 00 36 00 00 00 13 03 32 66 6f 01   ......6.....2fo.
-|   3808: 02 0b e2 01 74 01 06 01 01 04 04 07 1b 84 80 80   ....t...........
-|   3824: 86 f0 08 03 00 3c 00 00 00 16 02 31 74 01 0a 04   .....<.....1t...
-|   3840: 01 01 03 04 00 03 32 65 61 01 02 03 04 0a 17 84   ......2ea.......
-|   3856: 80 80 80 80 07 03 00 34 00 00 00 12 02 31 69 01   .......4.....1i.
-|   3872: 06 01 01 02 01 01 70 01 02 05 04 08 18 84 80 80   ......p.........
-|   3888: 80 80 06 03 00 36 00 00 00 13 02 31 65 01 02 03   .....6.....1e...
-|   3904: 01 01 66 01 08 02 01 01 04 04 06 1b 84 80 80 80   ..f.............
-|   3920: 80 05 03 00 3c 00 00 00 16 05 30 74 65 72 6d 01   ....<.....0term.
-|   3936: 02 04 02 02 68 65 01 06 01 01 03 04 09 14 84 80   ....he..........
-|   3952: 80 80 80 04 03 00 2e 00 00 00 10 06 30 74 61 62   ............0tab
-|   3968: 6c 65 01 06 01 01 05 04 15 84 7f 80 80 80 03 03   le..............
-|   3984: 00 30 00 00 00 11 02 08 30 70 72 65 73 65 6e 74   .0......0present
-|   4000: 01 02 05 05 1b 84 80 22 80 80 02 03 00 3c 00 00   .............<..
-|   4016: 00 16 04 30 66 74 73 01 06 01 01 04 01 02 69 6e   ...0fts.......in
-|   4032: 01 06 01 01 04 0a 1a 84 80 80 80 80 01 03 00 3a   ...............:
-|   4048: 00 00 00 15 05 30 65 61 63 68 01 02 03 01 03 66   .....0each.....f
-|   4064: 6f 72 01 02 02 04 09 06 01 03 00 12 03 0b 0f 00   or..............
-|   4080: 00 08 8c 80 80 80 80 11 03 00 16 00 00 00 05 04   ................
-| page 3 offset 8192
-|      0: 0a 00 00 00 32 0e 4f 00 0f fa 0f f1 0f e9 0f e1   ....2.O.........
-|     16: 0f d8 0f d1 0f c9 0f c1 0f b9 0f b1 0f a9 0f a0   ................
-|     32: 0f 98 0f 90 0f 87 0f 80 0f 78 0f 71 0f 68 0f 5f   .........x.q.h._
-|     48: 0f 56 0f 00 00 00 00 00 00 00 00 00 00 00 00 00   .V..............
-|   3392: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08   ................
-|   3408: 04 01 10 01 03 34 74 20 07 04 01 0e 01 03 34 1e   .....4t ......4.
-|   3424: 09 04 01 12 01 03 33 74 68 1c 08 04 01 10 01 03   ......3th.......
-|   3440: 34 6e 1a 08 04 01 10 01 03 32 67 18 08 04 01 10   4n.......2g.....
-|   3456: 01 03 32 74 16 08 04 01 10 01 03 32 6e 14 07 04   ..2t.......2n...
-|   3472: 01 0e 01 03 32 12 08 04 01 10 01 03 31 74 10 08   ....2.......1t..
-|   3488: 04 01 10 01 03 31 6e 0e 07 04 01 0e 01 03 31 0c   .....1n.......1.
-|   3504: 09 04 01 12 01 03 30 74 68 0a 08 04 01 10 01 03   ......0th.......
-|   3520: 30 74 08 09 04 01 12 01 03 30 6e 75 06 08 04 01   0t.......0nu....
-|   3536: 10 01 03 30 6e 04 06 04 01 0c 01 03 02 08 04 01   ...0n...........
-|   3552: 10 01 02 34 72 22 07 04 01 0e 01 02 34 20 08 04   ...4r.......4 ..
-|   3568: 01 10 01 02 33 72 1e 09 04 01 12 01 02 33 61 72   ....3r.......3ar
-|   3584: 1c 18 04 01 10 01 02 32 74 1a 08 04 01 10 01 02   .......2t.......
-|   3600: 32 69 18 09 04 01 12 01 02 32 61 72 16 08 04 01   2i.......2ar....
-|   3616: 10 01 02 31 74 2a 08 04 01 0f 01 02 31 6e 12 0a   ...1t*......1n..
-|   3632: d4 01 10 01 02 31 62 10 08 04 01 10 01 02 31 32   .....1b.......12
-|   3648: 0e 0b 04 01 16 01 02 30 74 68 65 72 0c 08 04 01   .......0ther....
-|   3664: 10 01 02 30 74 0a 08 04 01 10 01 02 30 6e 08 08   ...0t.......0n..
-|   3680: 04 01 10 01 02 30 62 06 08 04 01 10 01 02 30 61   .....0b.......0a
-|   3696: 04 06 03 f1 0c 01 02 02 07 04 09 10 01 34 74 22   .............4t.
-|   3712: 06 04 09 0e 01 34 20 08 04 09 12 01 33 74 65 1e   .....4 .....3te.
-|   3728: 07 04 09 10 01 33 70 1c 07 04 09 10 01 33 66 1a   .....3p......3f.
-|   3744: 08 04 09 12 01 32 74 68 18 07 04 09 10 01 32 74   .....2th......2t
-|   3760: 16 07 04 09 10 01 32 69 14 07 04 09 10 01 32 66   ......2i......2f
-|   3776: 12 07 04 09 10 01 31 74 10 07 04 09 10 01 31 69   ......1t......1i
-|   3792: 0e 06 04 09 0e 01 31 0c 08 04 09 12 01 30 74 65   ......1......0te
-|   3808: 0a 07 04 09 10 01 30 74 08 07 04 09 10 01 30 70   ......0t......0p
-|   3824: 06 08 04 09 1e 61 30 66 74 04 05 00 00 00 00 00   .....a0ft.......
-| page 4 offset 12288
-|   4064: 00 00 00 00 00 00 00 00 00 00 00 05 03 03 00 10   ................
-|   4080: 03 05 05 02 03 00 10 04 06 05 01 03 00 10 04 04   ................
-| page 5 offset 16384
-|      0: 0a 00 00 00 02 0f eb 00 0f eb 0f f4 00 00 00 00   ................
-|   4064: 00 00 00 00 00 00 00 00 00 00 00 08 03 15 01 70   ...............p
-|   4080: 67 73 7a 18 0b 03 1b 01 76 65 72 73 69 6f 6e 04   gsz.....version.
-| end crash-ef6738247b1344.db
-}]} {}
-
-
-do_catchsql_test 4.1 {
-  BEGIN;
-  REPLACE INTO t1(rowid,b,a,rowid) VALUES(200,1,2,3);
-} {1 {database disk image is malformed}}
-
-do_catchsql_test 4.2 {
-  INSERT INTO t1(t1) VALUES('delete-all');
-} {1 {database disk image is malformed}}
-do_catchsql_test 4.3 {
-  REPLACE INTO t1(rowid,b,rowid,a) VALUES(200,1,2,3);
-} {1 {database disk image is malformed}}
-do_catchsql_test 4.4 {
-  REPLACE INTO t1(rowid,b,a,rowid) VALUES(0,1,2,3);
-} {1 {database disk image is malformed}}
-do_catchsql_test 4.5 {
-  REPLACE INTO t1(rowid,a,b,rowid) VALUES(200,1,2,3);
-} {1 {database disk image is malformed}}
-
-sqlite3_fts5_may_be_corrupt 0
-finish_test
-
@@ -1,54 +0,0 @@
-# 2015 Apr 24
-#
-# The author disclaims copyright to this source code.  In place of
-# a legal notice, here is a blessing:
-#
-#    May you do good and not evil.
-#    May you find forgiveness for yourself and forgive others.
-#    May you share freely, never taking more than you give.
-#
-#***********************************************************************
-#
-# This file tests that FTS5 handles corrupt databases (i.e. internal
-# inconsistencies in the backing tables) correctly. In this case 
-# "correctly" means without crashing.
-#
-
-source [file join [file dirname [info script]] fts5_common.tcl]
-set testprefix fts5corrupt6
-
-# If SQLITE_ENABLE_FTS5 is defined, omit this file.
-ifcapable !fts5 {
-  finish_test
-  return
-}
-sqlite3_fts5_may_be_corrupt 1
-database_may_be_corrupt
-
-proc editblock {block} {
-  binary format Sa* 20000 [string range $block 2 end]
-}
-db func editblock editblock
-
-do_execsql_test 1.0 {
-  CREATE VIRTUAL TABLE ft USING fts5(abc, def);
-  WITH a(i) AS (
-    SELECT 1 UNION ALL SELECT i+1 FROM a WHERE i<1000
-  )
-  INSERT INTO ft SELECT 
-      'abc abc abc abc abc abc abc abc abc abc',
-      'def def def def def def def def def def'
-  FROM a;
-  UPDATE ft_data SET block = editblock(block) WHERE id=(
-    SELECT id FROM ft_data ORDER BY id LIMIT 1 OFFSET 5
-  );
-}
-
-do_catchsql_test 1.1 {
-  SELECT rowid FROM ft('def') ORDER BY rowid DESC LIMIT 1 OFFSET 9999;
-} {1 {database disk image is malformed}}
-
-
-sqlite3_fts5_may_be_corrupt 0
-finish_test
-
@@ -212,10 +212,6 @@ do_catchsql_test 4.1 {
  SELECT * FROM t4('a:a')
 } {1 {fts5: column queries are not supported (detail=none)}}

-do_catchsql_test 4.2 {
-  SELECT * FROM t4('a:a &')
-} {1 {fts5: syntax error near "&"}}
-
 #-------------------------------------------------------------------------
 # Test that for the same content detail=none uses less space than 
 # detail=col, and that detail=col uses less space than detail=full
@@ -83,7 +83,7 @@ for {set i 0} {$i < 255} {incr i} {

 do_execsql_test 3.0 {
  CREATE VIRTUAL TABLE e1 USING fts5(text, tokenize = 'porter unicode61');
-  INSERT INTO e1 VALUES ('just a few words with a / inside');
+  INSERT INTO e1 VALUES ("just a few words with a / inside");
 }
 do_execsql_test 3.1 {
  SELECT rowid, bm25(e1) FROM e1 WHERE e1 MATCH '"just"' ORDER BY rank;
@@ -16,16 +16,12 @@ source [file join [file dirname [info script]] fts5_common.tcl]
 source $testdir/malloc_common.tcl
 set testprefix fts5fault4

-# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
 ifcapable !fts5 {
  finish_test
  return
 }

-set ::TMPDBERROR [list 1 \
-  {unable to open a temporary database file for storing temporary tables}
-]
-
 #-------------------------------------------------------------------------
 # An OOM while dropping an fts5 table.
 #
@@ -395,7 +391,7 @@ do_faultsim_test 14.1 -faults oom-t* -prep {
 } -body {
  db eval { ALTER TABLE "tbl one" RENAME TO "tbl two" }
 } -test {
-  faultsim_test_result {0 {}} $::TMPDBERROR
+  faultsim_test_result {0 {}}
 }

 finish_test
@@ -188,11 +188,11 @@ foreach {tn pgsz} {
    INSERT INTO hh(hh, rank) VALUES('pgsz', $pgsz);

    WITH s(i) AS (SELECT 0 UNION ALL SELECT i+1 FROM s WHERE i<999)
-     INSERT INTO hh SELECT printf('%.3d%.3d%.3d %.3d%.3d%.3d',i,i,i,i+1,i+1,i+1)
+     INSERT INTO hh SELECT printf("%.3d%.3d%.3d %.3d%.3d%.3d",i,i,i,i+1,i+1,i+1)
     FROM s;

    WITH s(i) AS (SELECT 0 UNION ALL SELECT i+1 FROM s WHERE i<999)
-     INSERT INTO hh SELECT printf('%.3d%.3d%.3d %.3d%.3d%.3d',i,i,i,i+1,i+1,i+1)
+     INSERT INTO hh SELECT printf("%.3d%.3d%.3d %.3d%.3d%.3d",i,i,i,i+1,i+1,i+1)
     FROM s;

    INSERT INTO hh(hh) VALUES('optimize');
@@ -323,34 +323,5 @@ do_execsql_test 12.3 {
  SELECT * FROM t2 JOIN ft USING (ft)
 } {3 4 b b}

-#-------------------------------------------------------------------------
-# Forum post https://sqlite.org/forum/forumpost/21127c1160
-#
-reset_db
-sqlite3_db_config db DEFENSIVE 1
-
-do_execsql_test 13.0 {
-  CREATE TABLE a (id INTEGER PRIMARY KEY, name TEXT);
-  CREATE VIRTUAL TABLE b USING fts5(name);
-  CREATE TRIGGER a_trigger AFTER INSERT ON a BEGIN 
-    INSERT INTO b (name) VALUES ('foo');
-  END;
-}
-
-do_test 13.1 {
-  set ::STMT [
-    sqlite3_prepare db "INSERT INTO a VALUES (1, 'foo') RETURNING id;" -1 dummy
-  ]
-  sqlite3_step $::STMT
-} {SQLITE_ROW}
-
-do_test 13.2 {
-  sqlite3_finalize $::STMT
-} {SQLITE_OK}
-
-do_test 13.3 {
-  sqlite3_errmsg db
-} {not an error}
-
 finish_test

@@ -1,60 +0,0 @@
-# 2022 August 9
-#
-# The author disclaims copyright to this source code.  In place of
-# a legal notice, here is a blessing:
-#
-#    May you do good and not evil.
-#    May you find forgiveness for yourself and forgive others.
-#    May you share freely, never taking more than you give.
-#
-#***********************************************************************
-#
-# This test is focused on edge cases that cause ubsan errors.
-#
-
-source [file join [file dirname [info script]] fts5_common.tcl]
-set testprefix fts5ubsan
-
-# If SQLITE_ENABLE_FTS5 is defined, omit this file.
-ifcapable !fts5 {
-  finish_test
-  return
-}
-
-do_execsql_test 1.0 {
-  CREATE VIRTUAL TABLE x1 USING fts5(x);
-}
-
-set BIG    9000000000000000000
-set SMALL -9000000000000000000
-
-do_execsql_test 1.1 {
-  BEGIN;
-    INSERT INTO x1 (rowid, x) VALUES($BIG,   'aaa aba acc');
-    INSERT INTO x1 (rowid, x) VALUES($SMALL, 'aaa abc acb');
-  COMMIT;
-}
-
-do_execsql_test 1.2 {
-  SELECT rowid, x FROM x1('ab*');
-} [list $SMALL {aaa abc acb} $BIG {aaa aba acc}]
-
-do_execsql_test 1.3 {
-  SELECT rowid, x FROM x1('ac*');
-} [list $SMALL {aaa abc acb} $BIG {aaa aba acc}]
-
-reset_db
-do_execsql_test 2.0 {
-  CREATE VIRTUAL TABLE x1 USING fts5(x);
-}
-
-do_execsql_test 2.1 {
-  INSERT INTO x1 (rowid, x) VALUES($BIG,   'aaa aba acc');
-  INSERT INTO x1 (rowid, x) VALUES($SMALL, 'aaa abc acb');
-}
-
-do_execsql_test 2.2 {
-  INSERT INTO x1 (x1) VALUES('optimize');
-}
-
-finish_test
@@ -234,53 +234,4 @@ ifcapable fts3 {
  } {1 {no such fts5 table: main.nosuchtable}}
 }

-#-------------------------------------------------------------------------
-# Check that the fts5 table cannot be written while there are vocab 
-# cursors open.
-reset_db
-do_execsql_test 5.0 {
-  CREATE VIRTUAL TABLE t1 USING fts5(a);
-  CREATE VIRTUAL TABLE v1 USING fts5vocab(t1, instance);
-  INSERT INTO t1 VALUES('one'), ('two'), ('three'), ('four');
-}
-
-do_test 5.1 {
-  list [catch {
-    db eval { SELECT * FROM v1 } {
-      db eval {INSERT INTO t1 VALUES('five')}
-    }
-  } msg] $msg
-} {1 {query aborted}}
-
-do_execsql_test 5.2 {
-  SELECT * FROM t1
-} {one two three four five}
-
-#-------------------------------------------------------------------------
-# Check that the fts5 table cannot be written while there are vocab 
-# cursors open.
-reset_db
-do_execsql_test 5.0 {
-  CREATE VIRTUAL TABLE t1 USING fts5(a);
-  CREATE VIRTUAL TABLE v1 USING fts5vocab(t1, instance);
-  WITH s(i) AS (
-    VALUES(1) UNION ALL SELECT i+1 FROM s WHERE i<10000
-  )
-  INSERT INTO t1 SELECT 
-    'State Emergency Service (SES), Rural Fire Service (RFS) and Volunteers'
-  FROM s;
-}
-
-do_catchsql_test 5.1 {
-  INSERT INTO t1 SELECT rowid FROM v1
-} {1 {query aborted}}
-
-do_catchsql_test 5.2 {
-  DELETE FROM t1 WHERE rowid>100;
-  INSERT INTO t1 SELECT randomblob(3000) FROM v1
-} {1 {query aborted}}
-
-
 finish_test
-
-
@@ -60,8 +60,7 @@ proc fts5_source_id {zDir} {

  set L [split [readfile [file join $top manifest]]] 
  set date [lindex $L [expr [lsearch -exact $L D]+1]]
-  set idx [expr {[string last . $date]-1}]
-  set date [string range $date 0 $idx]
+  set date [string range $date 0 [string last . $date]-1]
  set date [string map {T { }} $date]

  return "fts5: $date $uuid"
@@ -153,12 +153,18 @@ SQLite. Documentation follows.
    the ICU extension LIKE operator is 50000, defined in source 
    file "icu.c".

-  3.3 Collation Sequence Security
+  3.3 Collation Sequence Security Issue

    Internally, SQLite assumes that indices stored in database files
    are sorted according to the collation sequence indicated by the
    SQL schema. Changing the definition of a collation sequence after
    an index has been built is therefore equivalent to database
-    corruption. The SQLite library is well tested for robustness in
-    the fact of database corruption.  Database corruption may well
-    lead to incorrect answers, but should not cause memory errors.
+    corruption. The SQLite library is not very well tested under
+    these conditions, and may contain potential buffer overruns
+    or other programming errors that could be exploited by a malicious
+    programmer.
+
+    If the ICU extension is used in an environment where potentially
+    malicious users may execute arbitrary SQL (i.e. gears), they
+    should be prevented from invoking the icu_load_collation() function,
+    possibly using the authorisation callback.
@@ -26,7 +26,7 @@
 **
 ** The virtual table contains read-only hidden columns:
 **
-**     lsm1_key       A BLOB which is the raw LSM key.  If the "keytype"
+**     lsm1_key	      A BLOB which is the raw LSM key.  If the "keytype"
 **                    is BLOB or TEXT then this column is exactly the
 **                    same as the key.  For the UINT keytype, this column
 **                    will be a variable-length integer encoding of the key.
@@ -657,7 +657,6 @@ int sqlite3_appendvfs_init(
  (void)pzErrMsg;
  (void)db;
  pOrig = sqlite3_vfs_find(0);
-  if( pOrig==0 ) return SQLITE_ERROR;
  apnd_vfs.iVersion = pOrig->iVersion;
  apnd_vfs.pAppData = pOrig;
  apnd_vfs.szOsFile = pOrig->szOsFile + sizeof(ApndFile);
@@ -56,24 +56,14 @@
 SQLITE_EXTENSION_INIT1
 #include <assert.h>
 #include <string.h>
- 
+
 /* Allowed values for the mFlags parameter to sqlite3_carray_bind().
 ** Must exactly match the definitions in carray.h.
 */
-#ifndef CARRAY_INT32
-# define CARRAY_INT32     0      /* Data is 32-bit signed integers */
-# define CARRAY_INT64     1      /* Data is 64-bit signed integers */
-# define CARRAY_DOUBLE    2      /* Data is doubles */
-# define CARRAY_TEXT      3      /* Data is char* */
-#endif
-
-#ifndef SQLITE_API
-# ifdef _WIN32
-#  define SQLITE_API __declspec(dllexport)
-# else
-#  define SQLITE_API
-# endif
-#endif
+#define CARRAY_INT32     0      /* Data is 32-bit signed integers */
+#define CARRAY_INT64     1      /* Data is 64-bit signed integers */
+#define CARRAY_DOUBLE    2      /* Data is doubles */
+#define CARRAY_TEXT      3      /* Data is char* */

 #ifndef SQLITE_OMIT_VIRTUALTABLE

@@ -410,7 +400,10 @@ static void carrayBindDel(void *pPtr){
 ** Invoke this interface in order to bind to the single-argument
 ** version of CARRAY().
 */
-SQLITE_API int sqlite3_carray_bind(
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_carray_bind(
  sqlite3_stmt *pStmt,
  int idx,
  void *aData,
@@ -464,7 +457,7 @@ SQLITE_API int sqlite3_carray_bind(
        z += n+1;
      }
    }else{
-      memcpy(pNew->aData, aData, sz);
+      memcpy(pNew->aData, aData, sz*nData);
    }
    pNew->xDel = sqlite3_free;
  }else{
@@ -505,7 +498,10 @@ static void inttoptrFunc(

 #endif /* SQLITE_OMIT_VIRTUALTABLE */

-SQLITE_API int sqlite3_carray_init(
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_carray_init(
  sqlite3 *db, 
  char **pzErrMsg, 
  const sqlite3_api_routines *pApi
@@ -1,32 +1,12 @@
 /*
-** 2020-11-17
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-**
 ** Interface definitions for the CARRAY table-valued function
 ** extension.
 */

-#ifndef _CARRAY_H
-#define _CARRAY_H
-
-#include "sqlite3.h"              /* Required for error code definitions */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
 /* Use this interface to bind an array to the single-argument version
 ** of CARRAY().
 */
-SQLITE_API int sqlite3_carray_bind(
+int sqlite3_carray_bind(
  sqlite3_stmt *pStmt,        /* Statement to be bound */
  int i,                      /* Parameter index */
  void *aData,                /* Pointer to array data */
@@ -41,10 +21,3 @@ SQLITE_API int sqlite3_carray_bind(
 #define CARRAY_INT64     1    /* Data is 64-bit signed integers */
 #define CARRAY_DOUBLE    2    /* Data is doubles */
 #define CARRAY_TEXT      3    /* Data is char* */
-
-#ifdef __cplusplus
-}  /* end of the 'extern "C"' block */
-#endif
-
-#endif /* ifndef _CARRAY_H */
-
@@ -823,7 +823,6 @@ static int cksmRegisterVfs(void){
  sqlite3_vfs *pOrig;
  if( sqlite3_vfs_find("cksmvfs")!=0 ) return SQLITE_OK;
  pOrig = sqlite3_vfs_find(0);
-  if( pOrig==0 ) return SQLITE_ERROR;
  cksm_vfs.iVersion = pOrig->iVersion;
  cksm_vfs.pAppData = pOrig;
  cksm_vfs.szOsFile = pOrig->szOsFile + sizeof(CksmFile);
@@ -871,6 +870,9 @@ int sqlite3_cksumvfs_init(
  SQLITE_EXTENSION_INIT2(pApi);
  (void)pzErrMsg; /* not used */
  rc = cksmRegisterFunc(db, 0, 0);
+  if( rc==SQLITE_OK ){
+    
+  }
  if( rc==SQLITE_OK ){
    rc = cksmRegisterVfs();
  }
@@ -280,7 +280,6 @@ static char *csv_read_one_field(CsvReader *p){
    }
    p->cTerm = (char)c;
  }
-  assert( p->z==0 || p->n<p->nAlloc );
  if( p->z ) p->z[p->n] = 0;
  p->bNotFirst = 1;
  return p->z;
@@ -751,7 +750,7 @@ static int csvtabNext(sqlite3_vtab_cursor *cur){
      i++;
    }
  }while( pCur->rdr.cTerm==',' );
-  if( z==0 && i==0 ){
+  if( z==0 || (pCur->rdr.cTerm==EOF && i<pTab->nCol) ){
    pCur->iRowid = -1;
  }else{
    pCur->iRowid++;
@@ -812,12 +811,6 @@ static int csvtabFilter(
  CsvCursor *pCur = (CsvCursor*)pVtabCursor;
  CsvTable *pTab = (CsvTable*)pVtabCursor->pVtab;
  pCur->iRowid = 0;
-
-  /* Ensure the field buffer is always allocated. Otherwise, if the
-  ** first field is zero bytes in size, this may be mistaken for an OOM
-  ** error in csvtabNext(). */
-  if( csv_append(&pCur->rdr, 0) ) return SQLITE_NOMEM;
-
  if( pCur->rdr.in==0 ){
    assert( pCur->rdr.zIn==pTab->zData );
    assert( pTab->iStart>=0 );
@@ -948,7 +941,7 @@ int sqlite3_csv_init(
  char **pzErrMsg, 
  const sqlite3_api_routines *pApi
 ){
-#ifndef SQLITE_OMIT_VIRTUALTABLE
+#ifndef SQLITE_OMIT_VIRTUALTABLE	
  int rc;
  SQLITE_EXTENSION_INIT2(pApi);
  rc = sqlite3_create_module(db, "csv", &CsvModule, 0);
@@ -72,11 +72,6 @@
 **   $path is a relative path, then $path is interpreted relative to $dir. 
 **   And the paths returned in the "name" column of the table are also 
 **   relative to directory $dir.
-**
-** Notes on building this extension for Windows:
-**   Unless linked statically with the SQLite library, a preprocessor
-**   symbol, FILEIO_WIN32_DLL, must be #define'd to create a stand-alone
-**   DLL form of this extension for WIN32. See its use below for details.
 */
 #include "sqlite3ext.h"
 SQLITE_EXTENSION_INIT1
@@ -230,22 +225,6 @@ static sqlite3_uint64 fileTimeToUnixTime(
  return (fileIntervals.QuadPart - epochIntervals.QuadPart) / 10000000;
 }

-
-#if defined(FILEIO_WIN32_DLL) && (defined(_WIN32) || defined(WIN32))
-#  /* To allow a standalone DLL, use this next replacement function: */
-#  undef sqlite3_win32_utf8_to_unicode
-#  define sqlite3_win32_utf8_to_unicode utf8_to_utf16
-#
-LPWSTR utf8_to_utf16(const char *z){
-  int nAllot = MultiByteToWideChar(CP_UTF8, 0, z, -1, NULL, 0);
-  LPWSTR rv = sqlite3_malloc(nAllot * sizeof(WCHAR));
-  if( rv!=0 && 0 < MultiByteToWideChar(CP_UTF8, 0, z, -1, rv, nAllot) )
-    return rv;
-  sqlite3_free(rv);
-  return 0;
-}
-#endif
-
 /*
 ** This function attempts to normalize the time values found in the stat()
 ** buffer to UTC.  This is necessary on Win32, where the runtime library
@@ -368,11 +347,10 @@ static int writeFile(
  mode_t mode,                    /* MODE parameter passed to writefile() */
  sqlite3_int64 mtime             /* MTIME parameter (or -1 to not set time) */
 ){
-  if( zFile==0 ) return 1;
 #if !defined(_WIN32) && !defined(WIN32)
  if( S_ISLNK(mode) ){
    const char *zTo = (const char*)sqlite3_value_text(pData);
-    if( zTo==0 || symlink(zTo, zFile)<0 ) return 1;
+    if( symlink(zTo, zFile)<0 ) return 1;
  }else
 #endif
  {
@@ -1020,11 +998,3 @@ int sqlite3_fileio_init(
  }
  return rc;
 }
-
-#if defined(FILEIO_WIN32_DLL) && (defined(_WIN32) || defined(WIN32))
-/* To allow a standalone DLL, make test_windirent.c use the same
- * redefined SQLite API calls as the above extension code does.
- * Just pull in this .c to accomplish this. As a beneficial side
- * effect, this extension becomes a single translation unit. */
-#  include "test_windirent.c"
-#endif
@@ -194,11 +194,7 @@ static void ieee754func(
    e += 1075;
    if( e<=0 ){
      /* Subnormal */
-      if( 1-e >= 64 ){
-        m = 0;
-      }else{
-        m >>= 1-e;
-      }
+      m >>= 1-e;
      e = 0;
    }else if( e>0x7ff ){
      e = 0x7ff;
@@ -284,7 +280,7 @@ int sqlite3_ieee_init(
  SQLITE_EXTENSION_INIT2(pApi);
  (void)pzErrMsg;  /* Unused parameter */
  for(i=0; i<sizeof(aFunc)/sizeof(aFunc[0]) && rc==SQLITE_OK; i++){
-    rc = sqlite3_create_function(db, aFunc[i].zFName, aFunc[i].nArg,
+    rc = sqlite3_create_function(db, aFunc[i].zFName, aFunc[i].nArg,	
                               SQLITE_UTF8|SQLITE_INNOCUOUS,
                               (void*)&aFunc[i].iAux,
                               aFunc[i].xFunc, 0, 0);
@@ -10,10 +10,10 @@
 **
 ******************************************************************************
 **
-** This SQLite JSON functions.
+** This SQLite extension implements JSON functions.  The interface is
+** modeled after MySQL JSON functions:
 **
-** This file began as an extension in ext/misc/json1.c in 2015.  That
-** extension proved so useful that it has now been moved into the core.
+**     https://dev.mysql.com/doc/refman/5.7/en/json.html
 **
 ** For the time being, all JSON is stored as pure text.  (We might add
 ** a JSONB type in the future which stores a binary encoding of JSON in
@@ -21,8 +21,48 @@
 ** This implementation parses JSON text at 250 MB/s, so it is hard to see
 ** how JSONB might improve on that.)
 */
-#ifndef SQLITE_OMIT_JSON
-#include "sqliteInt.h"
+#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_JSON1)
+#if !defined(SQLITEINT_H)
+#include "sqlite3ext.h"
+#endif
+SQLITE_EXTENSION_INIT1
+#include <assert.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdarg.h>
+
+/* Mark a function parameter as unused, to suppress nuisance compiler
+** warnings. */
+#ifndef UNUSED_PARAM
+# define UNUSED_PARAM(X)  (void)(X)
+#endif
+
+#ifndef LARGEST_INT64
+# define LARGEST_INT64  (0xffffffff|(((sqlite3_int64)0x7fffffff)<<32))
+# define SMALLEST_INT64 (((sqlite3_int64)-1) - LARGEST_INT64)
+#endif
+
+#ifndef deliberate_fall_through
+# define deliberate_fall_through
+#endif
+
+/*
+** Versions of isspace(), isalnum() and isdigit() to which it is safe
+** to pass signed char values.
+*/
+#ifdef sqlite3Isdigit
+   /* Use the SQLite core versions if this routine is part of the
+   ** SQLite amalgamation */
+#  define safe_isdigit(x)  sqlite3Isdigit(x)
+#  define safe_isalnum(x)  sqlite3Isalnum(x)
+#  define safe_isxdigit(x) sqlite3Isxdigit(x)
+#else
+   /* Use the standard library for separate compilation */
+#include <ctype.h>  /* amalgamator: keep */
+#  define safe_isdigit(x)  isdigit((unsigned char)(x))
+#  define safe_isalnum(x)  isalnum((unsigned char)(x))
+#  define safe_isxdigit(x) isxdigit((unsigned char)(x))
+#endif

 /*
 ** Growing our own isspace() routine this way is twice as fast as
@@ -47,12 +87,15 @@ static const char jsonIsSpace[] = {
  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
 };
-#define fast_isspace(x) (jsonIsSpace[(unsigned char)x])
+#define safe_isspace(x) (jsonIsSpace[(unsigned char)x])

-#if !defined(SQLITE_DEBUG) && !defined(SQLITE_COVERAGE_TEST)
-#  define VVA(X)
-#else
-#  define VVA(X) X
+#ifndef SQLITE_AMALGAMATION
+  /* Unsigned integer types.  These are already defined in the sqliteInt.h,
+  ** but the definitions need to be repeated for separate compilation. */
+  typedef sqlite3_uint64 u64;
+  typedef unsigned int u32;
+  typedef unsigned short int u16;
+  typedef unsigned char u8;
 #endif

 /* Objects */
@@ -111,14 +154,13 @@ static const char * const jsonType[] = {
 struct JsonNode {
  u8 eType;              /* One of the JSON_ type values */
  u8 jnFlags;            /* JNODE flags */
-  u8 eU;                 /* Which union element to use */
  u32 n;                 /* Bytes of content, or number of sub-nodes */
  union {
-    const char *zJContent; /* 1: Content for INT, REAL, and STRING */
-    u32 iAppend;           /* 2: More terms for ARRAY and OBJECT */
-    u32 iKey;              /* 3: Key for ARRAY objects in json_tree() */
-    u32 iReplace;          /* 4: Replacement content for JNODE_REPLACE */
-    JsonNode *pPatch;      /* 5: Node chain of patch for JNODE_PATCH */
+    const char *zJContent; /* Content for INT, REAL, and STRING */
+    u32 iAppend;           /* More terms for ARRAY and OBJECT */
+    u32 iKey;              /* Key for ARRAY objects in json_tree() */
+    u32 iReplace;          /* Replacement content for JNODE_REPLACE */
+    JsonNode *pPatch;      /* Node chain of patch for JNODE_PATCH */
  } u;
 };

@@ -396,14 +438,11 @@ static void jsonRenderNode(
  JsonString *pOut,              /* Write JSON here */
  sqlite3_value **aReplace       /* Replacement values */
 ){
-  assert( pNode!=0 );
  if( pNode->jnFlags & (JNODE_REPLACE|JNODE_PATCH) ){
-    if( (pNode->jnFlags & JNODE_REPLACE)!=0 && ALWAYS(aReplace!=0) ){
-      assert( pNode->eU==4 );
+    if( pNode->jnFlags & JNODE_REPLACE ){
      jsonAppendValue(pOut, aReplace[pNode->u.iReplace]);
      return;
    }
-    assert( pNode->eU==5 );
    pNode = pNode->u.pPatch;
  }
  switch( pNode->eType ){
@@ -422,7 +461,6 @@ static void jsonRenderNode(
    }
    case JSON_STRING: {
      if( pNode->jnFlags & JNODE_RAW ){
-        assert( pNode->eU==1 );
        jsonAppendString(pOut, pNode->u.zJContent, pNode->n);
        break;
      }
@@ -430,7 +468,6 @@ static void jsonRenderNode(
    }
    case JSON_REAL:
    case JSON_INT: {
-      assert( pNode->eU==1 );
      jsonAppendRaw(pOut, pNode->u.zJContent, pNode->n);
      break;
    }
@@ -446,7 +483,6 @@ static void jsonRenderNode(
          j += jsonNodeSize(&pNode[j]);
        }
        if( (pNode->jnFlags & JNODE_APPEND)==0 ) break;
-        assert( pNode->eU==2 );
        pNode = &pNode[pNode->u.iAppend];
        j = 1;
      }
@@ -467,7 +503,6 @@ static void jsonRenderNode(
          j += 1 + jsonNodeSize(&pNode[j+1]);
        }
        if( (pNode->jnFlags & JNODE_APPEND)==0 ) break;
-        assert( pNode->eU==2 );
        pNode = &pNode[pNode->u.iAppend];
        j = 1;
      }
@@ -512,10 +547,10 @@ static u8 jsonHexToInt(int h){
 */
 static u32 jsonHexToInt4(const char *z){
  u32 v;
-  assert( sqlite3Isxdigit(z[0]) );
-  assert( sqlite3Isxdigit(z[1]) );
-  assert( sqlite3Isxdigit(z[2]) );
-  assert( sqlite3Isxdigit(z[3]) );
+  assert( safe_isxdigit(z[0]) );
+  assert( safe_isxdigit(z[1]) );
+  assert( safe_isxdigit(z[2]) );
+  assert( safe_isxdigit(z[3]) );
  v = (jsonHexToInt(z[0])<<12)
    + (jsonHexToInt(z[1])<<8)
    + (jsonHexToInt(z[2])<<4)
@@ -547,9 +582,7 @@ static void jsonReturn(
    }
    case JSON_INT: {
      sqlite3_int64 i = 0;
-      const char *z;
-      assert( pNode->eU==1 );
-      z = pNode->u.zJContent;
+      const char *z = pNode->u.zJContent;
      if( z[0]=='-' ){ z++; }
      while( z[0]>='0' && z[0]<='9' ){
        unsigned v = *(z++) - '0';
@@ -572,17 +605,14 @@ static void jsonReturn(
      sqlite3_result_int64(pCtx, i);
      int_done:
      break;
-      int_as_real: ; /* no break */ deliberate_fall_through
+      int_as_real: i=0; /* no break */ deliberate_fall_through
    }
    case JSON_REAL: {
      double r;
 #ifdef SQLITE_AMALGAMATION
-      const char *z;
-      assert( pNode->eU==1 );
-      z = pNode->u.zJContent;
+      const char *z = pNode->u.zJContent;
      sqlite3AtoF(z, &r, sqlite3Strlen30(z), SQLITE_UTF8);
 #else
-      assert( pNode->eU==1 );
      r = strtod(pNode->u.zJContent, 0);
 #endif
      sqlite3_result_double(pCtx, r);
@@ -593,7 +623,6 @@ static void jsonReturn(
      ** json_insert() and json_replace() and those routines do not
      ** call jsonReturn() */
      if( pNode->jnFlags & JNODE_RAW ){
-        assert( pNode->eU==1 );
        sqlite3_result_text(pCtx, pNode->u.zJContent, pNode->n,
                            SQLITE_TRANSIENT);
      }else 
@@ -601,18 +630,15 @@ static void jsonReturn(
      assert( (pNode->jnFlags & JNODE_RAW)==0 );
      if( (pNode->jnFlags & JNODE_ESCAPE)==0 ){
        /* JSON formatted without any backslash-escapes */
-        assert( pNode->eU==1 );
        sqlite3_result_text(pCtx, pNode->u.zJContent+1, pNode->n-2,
                            SQLITE_TRANSIENT);
      }else{
        /* Translate JSON formatted string into raw text */
        u32 i;
        u32 n = pNode->n;
-        const char *z;
+        const char *z = pNode->u.zJContent;
        char *zOut;
        u32 j;
-        assert( pNode->eU==1 );
-        z = pNode->u.zJContent;
        zOut = sqlite3_malloc( n+1 );
        if( zOut==0 ){
          sqlite3_result_error_nomem(pCtx);
@@ -733,13 +759,12 @@ static int jsonParseAddNode(
  const char *zContent      /* Content */
 ){
  JsonNode *p;
-  if( pParse->aNode==0 || pParse->nNode>=pParse->nAlloc ){
+  if( pParse->nNode>=pParse->nAlloc ){
    return jsonParseAddNodeExpand(pParse, eType, n, zContent);
  }
  p = &pParse->aNode[pParse->nNode];
  p->eType = (u8)eType;
  p->jnFlags = 0;
-  VVA( p->eU = zContent ? 1 : 0 );
  p->n = n;
  p->u.zJContent = zContent;
  return pParse->nNode++;
@@ -750,7 +775,7 @@ static int jsonParseAddNode(
 */
 static int jsonIs4Hex(const char *z){
  int i;
-  for(i=0; i<4; i++) if( !sqlite3Isxdigit(z[i]) ) return 0;
+  for(i=0; i<4; i++) if( !safe_isxdigit(z[i]) ) return 0;
  return 1;
 }

@@ -769,13 +794,13 @@ static int jsonParseValue(JsonParse *pParse, u32 i){
  int x;
  JsonNode *pNode;
  const char *z = pParse->zJson;
-  while( fast_isspace(z[i]) ){ i++; }
+  while( safe_isspace(z[i]) ){ i++; }
  if( (c = z[i])=='{' ){
    /* Parse object */
    iThis = jsonParseAddNode(pParse, JSON_OBJECT, 0, 0);
    if( iThis<0 ) return -1;
    for(j=i+1;;j++){
-      while( fast_isspace(z[j]) ){ j++; }
+      while( safe_isspace(z[j]) ){ j++; }
      if( ++pParse->iDepth > JSON_MAX_DEPTH ) return -1;
      x = jsonParseValue(pParse, j);
      if( x<0 ){
@@ -788,14 +813,14 @@ static int jsonParseValue(JsonParse *pParse, u32 i){
      if( pNode->eType!=JSON_STRING ) return -1;
      pNode->jnFlags |= JNODE_LABEL;
      j = x;
-      while( fast_isspace(z[j]) ){ j++; }
+      while( safe_isspace(z[j]) ){ j++; }
      if( z[j]!=':' ) return -1;
      j++;
      x = jsonParseValue(pParse, j);
      pParse->iDepth--;
      if( x<0 ) return -1;
      j = x;
-      while( fast_isspace(z[j]) ){ j++; }
+      while( safe_isspace(z[j]) ){ j++; }
      c = z[j];
      if( c==',' ) continue;
      if( c!='}' ) return -1;
@@ -807,9 +832,8 @@ static int jsonParseValue(JsonParse *pParse, u32 i){
    /* Parse array */
    iThis = jsonParseAddNode(pParse, JSON_ARRAY, 0, 0);
    if( iThis<0 ) return -1;
-    memset(&pParse->aNode[iThis].u, 0, sizeof(pParse->aNode[iThis].u));
    for(j=i+1;;j++){
-      while( fast_isspace(z[j]) ){ j++; }
+      while( safe_isspace(z[j]) ){ j++; }
      if( ++pParse->iDepth > JSON_MAX_DEPTH ) return -1;
      x = jsonParseValue(pParse, j);
      pParse->iDepth--;
@@ -818,7 +842,7 @@ static int jsonParseValue(JsonParse *pParse, u32 i){
        return -1;
      }
      j = x;
-      while( fast_isspace(z[j]) ){ j++; }
+      while( safe_isspace(z[j]) ){ j++; }
      c = z[j];
      if( c==',' ) continue;
      if( c!=']' ) return -1;
@@ -855,17 +879,17 @@ static int jsonParseValue(JsonParse *pParse, u32 i){
    return j+1;
  }else if( c=='n'
         && strncmp(z+i,"null",4)==0
-         && !sqlite3Isalnum(z[i+4]) ){
+         && !safe_isalnum(z[i+4]) ){
    jsonParseAddNode(pParse, JSON_NULL, 0, 0);
    return i+4;
  }else if( c=='t'
         && strncmp(z+i,"true",4)==0
-         && !sqlite3Isalnum(z[i+4]) ){
+         && !safe_isalnum(z[i+4]) ){
    jsonParseAddNode(pParse, JSON_TRUE, 0, 0);
    return i+4;
  }else if( c=='f'
         && strncmp(z+i,"false",5)==0
-         && !sqlite3Isalnum(z[i+5]) ){
+         && !safe_isalnum(z[i+5]) ){
    jsonParseAddNode(pParse, JSON_FALSE, 0, 0);
    return i+5;
  }else if( c=='-' || (c>='0' && c<='9') ){
@@ -936,7 +960,7 @@ static int jsonParse(
  if( pParse->oom ) i = -1;
  if( i>0 ){
    assert( pParse->iDepth==0 );
-    while( fast_isspace(zJson[i]) ) i++;
+    while( safe_isspace(zJson[i]) ) i++;
    if( zJson[i] ) i = -1;
  }
  if( i<=0 ){
@@ -1072,7 +1096,6 @@ static JsonParse *jsonParseCached(
 ** a match.
 */
 static int jsonLabelCompare(JsonNode *pNode, const char *zKey, u32 nKey){
-  assert( pNode->eU==1 );
  if( pNode->jnFlags & JNODE_RAW ){
    if( pNode->n!=nKey ) return 0;
    return strncmp(pNode->u.zJContent, zKey, nKey)==0;
@@ -1119,15 +1142,14 @@ static JsonNode *jsonLookupStep(
        *pzErr = zPath;
        return 0;
      }
-      testcase( nKey==0 );
    }else{
      zKey = zPath;
      for(i=0; zPath[i] && zPath[i]!='.' && zPath[i]!='['; i++){}
      nKey = i;
-      if( nKey==0 ){
-        *pzErr = zPath;
-        return 0;
-      }
+    }
+    if( nKey==0 ){
+      *pzErr = zPath;
+      return 0;
    }
    j = 1;
    for(;;){
@@ -1139,7 +1161,6 @@ static JsonNode *jsonLookupStep(
        j += jsonNodeSize(&pRoot[j]);
      }
      if( (pRoot->jnFlags & JNODE_APPEND)==0 ) break;
-      assert( pRoot->eU==2 );
      iRoot += pRoot->u.iAppend;
      pRoot = &pParse->aNode[iRoot];
      j = 1;
@@ -1154,10 +1175,8 @@ static JsonNode *jsonLookupStep(
      if( pParse->oom ) return 0;
      if( pNode ){
        pRoot = &pParse->aNode[iRoot];
-        assert( pRoot->eU==0 );
        pRoot->u.iAppend = iStart - iRoot;
        pRoot->jnFlags |= JNODE_APPEND;
-        VVA( pRoot->eU = 2 );
        pParse->aNode[iLabel].jnFlags |= JNODE_RAW;
      }
      return pNode;
@@ -1165,7 +1184,7 @@ static JsonNode *jsonLookupStep(
  }else if( zPath[0]=='[' ){
    i = 0;
    j = 1;
-    while( sqlite3Isdigit(zPath[j]) ){
+    while( safe_isdigit(zPath[j]) ){
      i = i*10 + zPath[j] - '0';
      j++;
    }
@@ -1180,19 +1199,18 @@ static JsonNode *jsonLookupStep(
            j += jsonNodeSize(&pBase[j]);
          }
          if( (pBase->jnFlags & JNODE_APPEND)==0 ) break;
-          assert( pBase->eU==2 );
          iBase += pBase->u.iAppend;
          pBase = &pParse->aNode[iBase];
          j = 1;
        }
        j = 2;
-        if( zPath[2]=='-' && sqlite3Isdigit(zPath[3]) ){
+        if( zPath[2]=='-' && safe_isdigit(zPath[3]) ){
          unsigned int x = 0;
          j = 3;
          do{
            x = x*10 + zPath[j] - '0';
            j++;
-          }while( sqlite3Isdigit(zPath[j]) );
+          }while( safe_isdigit(zPath[j]) );
          if( x>i ) return 0;
          i -= x;
        }
@@ -1214,7 +1232,6 @@ static JsonNode *jsonLookupStep(
        j += jsonNodeSize(&pRoot[j]);
      }
      if( (pRoot->jnFlags & JNODE_APPEND)==0 ) break;
-      assert( pRoot->eU==2 );
      iRoot += pRoot->u.iAppend;
      pRoot = &pParse->aNode[iRoot];
      j = 1;
@@ -1230,10 +1247,8 @@ static JsonNode *jsonLookupStep(
      if( pParse->oom ) return 0;
      if( pNode ){
        pRoot = &pParse->aNode[iRoot];
-        assert( pRoot->eU==0 );
        pRoot->u.iAppend = iStart - iRoot;
        pRoot->jnFlags |= JNODE_APPEND;
-        VVA( pRoot->eU = 2 );
      }
      return pNode;
    }
@@ -1387,13 +1402,9 @@ static void jsonParseFunc(
    }
    jsonPrintf(100, &s,"node %3u: %7s n=%-4d up=%-4d",
               i, zType, x.aNode[i].n, x.aUp[i]);
-    assert( x.aNode[i].eU==0 || x.aNode[i].eU==1 );
    if( x.aNode[i].u.zJContent!=0 ){
-      assert( x.aNode[i].eU==1 );
      jsonAppendRaw(&s, " ", 1);
      jsonAppendRaw(&s, x.aNode[i].u.zJContent, x.aNode[i].n);
-    }else{
-      assert( x.aNode[i].eU==0 );
    }
    jsonAppendRaw(&s, "\n", 1);
  }
@@ -1411,7 +1422,7 @@ static void jsonTest1Func(
  int argc,
  sqlite3_value **argv
 ){
-  UNUSED_PARAMETER(argc);
+  UNUSED_PARAM(argc);
  sqlite3_result_int(ctx, sqlite3_value_subtype(argv[0])==JSON_SUBTYPE);
 }
 #endif /* SQLITE_DEBUG */
@@ -1432,7 +1443,7 @@ static void jsonQuoteFunc(
  sqlite3_value **argv
 ){
  JsonString jx;
-  UNUSED_PARAMETER(argc);
+  UNUSED_PARAM(argc);

  jsonInit(&jx, ctx);
  jsonAppendValue(&jx, argv[0]);
@@ -1503,34 +1514,13 @@ static void jsonArrayLengthFunc(
  sqlite3_result_int64(ctx, n);
 }

-/*
-** Bit values for the flags passed into jsonExtractFunc() or
-** jsonSetFunc() via the user-data value.
-*/
-#define JSON_JSON      0x01        /* Result is always JSON */
-#define JSON_SQL       0x02        /* Result is always SQL */
-#define JSON_ABPATH    0x03        /* Allow abbreviated JSON path specs */
-#define JSON_ISSET     0x04        /* json_set(), not json_insert() */
-
 /*
 ** json_extract(JSON, PATH, ...)
-** "->"(JSON,PATH)
-** "->>"(JSON,PATH)
 **
-** Return the element described by PATH.  Return NULL if that PATH element
-** is not found.
-**
-** If JSON_JSON is set or if more that one PATH argument is supplied then
-** always return a JSON representation of the result.  If JSON_SQL is set,
-** then always return an SQL representation of the result.  If neither flag
-** is present and argc==2, then return JSON for objects and arrays and SQL
-** for all other values.
-**
-** When multiple PATH arguments are supplied, the result is a JSON array
-** containing the result of each PATH.
-**
-** Abbreviated JSON path expressions are allows if JSON_ABPATH, for
-** compatibility with PG.
+** Return the element described by PATH.  Return NULL if there is no
+** PATH element.  If there are multiple PATHs, then return a JSON array
+** with the result from each path.  Throw an error if the JSON or any PATH
+** is malformed.
 */
 static void jsonExtractFunc(
  sqlite3_context *ctx,
@@ -1540,77 +1530,35 @@ static void jsonExtractFunc(
  JsonParse *p;          /* The parse */
  JsonNode *pNode;
  const char *zPath;
-  int flags = SQLITE_PTR_TO_INT(sqlite3_user_data(ctx));
  JsonString jx;
+  int i;

  if( argc<2 ) return;
  p = jsonParseCached(ctx, argv, ctx);
  if( p==0 ) return;
-  if( argc==2 ){
-    /* With a single PATH argument */
-    zPath = (const char*)sqlite3_value_text(argv[1]);
-    if( zPath==0 ) return;
-    if( flags & JSON_ABPATH ){
-      if( zPath[0]!='$' ){
-        /* The -> and ->> operators accept abbreviated PATH arguments.  This
-        ** is mostly for compatibility with PostgreSQL, but also for
-        ** convenience.
-        **
-        **     NUMBER   ==>  $[NUMBER]     // PG compatible
-        **     LABEL    ==>  $.LABEL       // PG compatible
-        **     [NUMBER] ==>  $[NUMBER]     // Not PG.  Purely for convenience
-        */
-        jsonInit(&jx, ctx);
-        if( sqlite3Isdigit(zPath[0]) ){
-          jsonAppendRaw(&jx, "$[", 2);
-          jsonAppendRaw(&jx, zPath, (int)strlen(zPath));
-          jsonAppendRaw(&jx, "]", 2);
-        }else{
-          jsonAppendRaw(&jx, "$.", 1 + (zPath[0]!='['));
-          jsonAppendRaw(&jx, zPath, (int)strlen(zPath));
-          jsonAppendChar(&jx, 0);
-        }
-        pNode = jx.bErr ? 0 : jsonLookup(p, jx.zBuf, 0, ctx);
-        jsonReset(&jx);
-      }else{
-        pNode = jsonLookup(p, zPath, 0, ctx);
-      }
-      if( pNode ){
-        if( flags & JSON_JSON ){
-          jsonReturnJson(pNode, ctx, 0);
-        }else{
-          jsonReturn(pNode, ctx, 0);
-          sqlite3_result_subtype(ctx, 0);
-        }
-      }
-    }else{
-      pNode = jsonLookup(p, zPath, 0, ctx);
-      if( p->nErr==0 && pNode ) jsonReturn(pNode, ctx, 0);
-    }
-  }else{
-    /* Two or more PATH arguments results in a JSON array with each
-    ** element of the array being the value selected by one of the PATHs */
-    int i;
-    jsonInit(&jx, ctx);
-    jsonAppendChar(&jx, '[');
-    for(i=1; i<argc; i++){
-      zPath = (const char*)sqlite3_value_text(argv[i]);
-      pNode = jsonLookup(p, zPath, 0, ctx);
-      if( p->nErr ) break;
+  jsonInit(&jx, ctx);
+  jsonAppendChar(&jx, '[');
+  for(i=1; i<argc; i++){
+    zPath = (const char*)sqlite3_value_text(argv[i]);
+    pNode = jsonLookup(p, zPath, 0, ctx);
+    if( p->nErr ) break;
+    if( argc>2 ){
      jsonAppendSeparator(&jx);
      if( pNode ){
        jsonRenderNode(pNode, &jx, 0);
      }else{
        jsonAppendRaw(&jx, "null", 4);
      }
+    }else if( pNode ){
+      jsonReturn(pNode, ctx, 0);
    }
-    if( i==argc ){
-      jsonAppendChar(&jx, ']');
-      jsonResult(&jx);
-      sqlite3_result_subtype(ctx, JSON_SUBTYPE);
-    }
-    jsonReset(&jx);
  }
+  if( argc>2 && i==argc ){
+    jsonAppendChar(&jx, ']');
+    jsonResult(&jx);
+    sqlite3_result_subtype(ctx, JSON_SUBTYPE);
+  }
+  jsonReset(&jx);
 }

 /* This is the RFC 7396 MergePatch algorithm.
@@ -1626,7 +1574,7 @@ static JsonNode *jsonMergePatch(
  if( pPatch->eType!=JSON_OBJECT ){
    return pPatch;
  }
-  assert( iTarget<pParse->nNode );
+  assert( iTarget>=0 && iTarget<pParse->nNode );
  pTarget = &pParse->aNode[iTarget];
  assert( (pPatch->jnFlags & JNODE_APPEND)==0 );
  if( pTarget->eType!=JSON_OBJECT ){
@@ -1639,7 +1587,6 @@ static JsonNode *jsonMergePatch(
    const char *zKey;
    assert( pPatch[i].eType==JSON_STRING );
    assert( pPatch[i].jnFlags & JNODE_LABEL );
-    assert( pPatch[i].eU==1 );
    nKey = pPatch[i].n;
    zKey = pPatch[i].u.zJContent;
    assert( (pPatch[i].jnFlags & JNODE_RAW)==0 );
@@ -1656,12 +1603,6 @@ static JsonNode *jsonMergePatch(
          if( pNew==0 ) return 0;
          pTarget = &pParse->aNode[iTarget];
          if( pNew!=&pTarget[j+1] ){
-            assert( pTarget[j+1].eU==0
-                 || pTarget[j+1].eU==1
-                 || pTarget[j+1].eU==2 );
-            testcase( pTarget[j+1].eU==1 );
-            testcase( pTarget[j+1].eU==2 );
-            VVA( pTarget[j+1].eU = 5 );
            pTarget[j+1].u.pPatch = pNew;
            pTarget[j+1].jnFlags |= JNODE_PATCH;
          }
@@ -1677,14 +1618,9 @@ static JsonNode *jsonMergePatch(
      if( pParse->oom ) return 0;
      jsonRemoveAllNulls(pPatch);
      pTarget = &pParse->aNode[iTarget];
-      assert( pParse->aNode[iRoot].eU==0 || pParse->aNode[iRoot].eU==2 );
-      testcase( pParse->aNode[iRoot].eU==2 );
      pParse->aNode[iRoot].jnFlags |= JNODE_APPEND;
-      VVA( pParse->aNode[iRoot].eU = 2 );
      pParse->aNode[iRoot].u.iAppend = iStart - iRoot;
      iRoot = iStart;
-      assert( pParse->aNode[iPatch].eU==0 );
-      VVA( pParse->aNode[iPatch].eU = 5 );
      pParse->aNode[iPatch].jnFlags |= JNODE_PATCH;
      pParse->aNode[iPatch].u.pPatch = &pPatch[i+1];
    }
@@ -1706,7 +1642,7 @@ static void jsonPatchFunc(
  JsonParse y;     /* The patch */
  JsonNode *pResult;   /* The result of the merge */

-  UNUSED_PARAMETER(argc);
+  UNUSED_PARAM(argc);
  if( jsonParse(&x, ctx, (const char*)sqlite3_value_text(argv[0])) ) return;
  if( jsonParse(&y, ctx, (const char*)sqlite3_value_text(argv[1])) ){
    jsonParseReset(&x);
@@ -1826,15 +1762,11 @@ static void jsonReplaceFunc(
    pNode = jsonLookup(&x, zPath, 0, ctx);
    if( x.nErr ) goto replace_err;
    if( pNode ){
-      assert( pNode->eU==0 || pNode->eU==1 || pNode->eU==4 );
-      testcase( pNode->eU!=0 && pNode->eU!=1 );
      pNode->jnFlags |= (u8)JNODE_REPLACE;
-      VVA( pNode->eU =  4 );
      pNode->u.iReplace = i + 1;
    }
  }
  if( x.aNode[0].jnFlags & JNODE_REPLACE ){
-    assert( x.aNode[0].eU==4 );
    sqlite3_result_value(ctx, argv[x.aNode[0].u.iReplace]);
  }else{
    jsonReturnJson(x.aNode, ctx, argv);
@@ -1843,7 +1775,6 @@ replace_err:
  jsonParseReset(&x);
 }

-
 /*
 ** json_set(JSON, PATH, VALUE, ...)
 **
@@ -1866,7 +1797,7 @@ static void jsonSetFunc(
  const char *zPath;
  u32 i;
  int bApnd;
-  int bIsSet = sqlite3_user_data(ctx)!=0;
+  int bIsSet = *(int*)sqlite3_user_data(ctx);

  if( argc<1 ) return;
  if( (argc&1)==0 ) {
@@ -1885,15 +1816,11 @@ static void jsonSetFunc(
    }else if( x.nErr ){
      goto jsonSetDone;
    }else if( pNode && (bApnd || bIsSet) ){
-      testcase( pNode->eU!=0 && pNode->eU!=1 );
-      assert( pNode->eU!=3 && pNode->eU!=5 );
-      VVA( pNode->eU = 4 );
      pNode->jnFlags |= (u8)JNODE_REPLACE;
      pNode->u.iReplace = i + 1;
    }
  }
  if( x.aNode[0].jnFlags & JNODE_REPLACE ){
-    assert( x.aNode[0].eU==4 );
    sqlite3_result_value(ctx, argv[x.aNode[0].u.iReplace]);
  }else{
    jsonReturnJson(x.aNode, ctx, argv);
@@ -1906,8 +1833,8 @@ jsonSetDone:
 ** json_type(JSON)
 ** json_type(JSON, PATH)
 **
-** Return the top-level "type" of a JSON string.  json_type() raises an
-** error if either the JSON or PATH inputs are not well-formed.
+** Return the top-level "type" of a JSON string.  Throw an error if
+** either the JSON or PATH inputs are not well-formed.
 */
 static void jsonTypeFunc(
  sqlite3_context *ctx,
@@ -1943,7 +1870,7 @@ static void jsonValidFunc(
  sqlite3_value **argv
 ){
  JsonParse *p;          /* The parse */
-  UNUSED_PARAMETER(argc);
+  UNUSED_PARAM(argc);
  p = jsonParseCached(ctx, argv, 0);
  sqlite3_result_int(ctx, p!=0);
 }
@@ -1963,7 +1890,7 @@ static void jsonArrayStep(
  sqlite3_value **argv
 ){
  JsonString *pStr;
-  UNUSED_PARAMETER(argc);
+  UNUSED_PARAM(argc);
  pStr = (JsonString*)sqlite3_aggregate_context(ctx, sizeof(*pStr));
  if( pStr ){
    if( pStr->zBuf==0 ){
@@ -2023,8 +1950,8 @@ static void jsonGroupInverse(
  char *z;
  char c;
  JsonString *pStr;
-  UNUSED_PARAMETER(argc);
-  UNUSED_PARAMETER(argv);
+  UNUSED_PARAM(argc);
+  UNUSED_PARAM(argv);
  pStr = (JsonString*)sqlite3_aggregate_context(ctx, 0);
 #ifdef NEVER
  /* pStr is always non-NULL since jsonArrayStep() or jsonObjectStep() will
@@ -2068,7 +1995,7 @@ static void jsonObjectStep(
  JsonString *pStr;
  const char *z;
  u32 n;
-  UNUSED_PARAMETER(argc);
+  UNUSED_PARAM(argc);
  pStr = (JsonString*)sqlite3_aggregate_context(ctx, sizeof(*pStr));
  if( pStr ){
    if( pStr->zBuf==0 ){
@@ -2159,10 +2086,10 @@ static int jsonEachConnect(
 #define JEACH_JSON    8
 #define JEACH_ROOT    9

-  UNUSED_PARAMETER(pzErr);
-  UNUSED_PARAMETER(argv);
-  UNUSED_PARAMETER(argc);
-  UNUSED_PARAMETER(pAux);
+  UNUSED_PARAM(pzErr);
+  UNUSED_PARAM(argv);
+  UNUSED_PARAM(argc);
+  UNUSED_PARAM(pAux);
  rc = sqlite3_declare_vtab(db, 
     "CREATE TABLE x(key,value,type,atom,id,parent,fullkey,path,"
                    "json HIDDEN,root HIDDEN)");
@@ -2185,7 +2112,7 @@ static int jsonEachDisconnect(sqlite3_vtab *pVtab){
 static int jsonEachOpenEach(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){
  JsonEachCursor *pCur;

-  UNUSED_PARAMETER(p);
+  UNUSED_PARAM(p);
  pCur = sqlite3_malloc( sizeof(*pCur) );
  if( pCur==0 ) return SQLITE_NOMEM;
  memset(pCur, 0, sizeof(*pCur));
@@ -2244,9 +2171,6 @@ static int jsonEachNext(sqlite3_vtab_cursor *cur){
      JsonNode *pUp = &p->sParse.aNode[iUp];
      p->eType = pUp->eType;
      if( pUp->eType==JSON_ARRAY ){
-        assert( pUp->eU==0 || pUp->eU==3 );
-        testcase( pUp->eU==3 );
-        VVA( pUp->eU = 3 );
        if( iUp==p->i-1 ){
          pUp->u.iKey = 0;
        }else{
@@ -2275,33 +2199,6 @@ static int jsonEachNext(sqlite3_vtab_cursor *cur){
  return SQLITE_OK;
 }

-/* Append an object label to the JSON Path being constructed
-** in pStr.
-*/
-static void jsonAppendObjectPathElement(
-  JsonString *pStr,
-  JsonNode *pNode
-){
-  int jj, nn;
-  const char *z;
-  assert( pNode->eType==JSON_STRING );
-  assert( pNode->jnFlags & JNODE_LABEL );
-  assert( pNode->eU==1 );
-  z = pNode->u.zJContent;
-  nn = pNode->n;
-  assert( nn>=2 );
-  assert( z[0]=='"' );
-  assert( z[nn-1]=='"' );
-  if( nn>2 && sqlite3Isalpha(z[1]) ){
-    for(jj=2; jj<nn-1 && sqlite3Isalnum(z[jj]); jj++){}
-    if( jj==nn-1 ){
-      z++;
-      nn -= 2;
-    }
-  }
-  jsonPrintf(nn+2, pStr, ".%.*s", nn, z);
-}
-
 /* Append the name of the path for element i to pStr
 */
 static void jsonEachComputePath(
@@ -2320,13 +2217,13 @@ static void jsonEachComputePath(
  pNode = &p->sParse.aNode[i];
  pUp = &p->sParse.aNode[iUp];
  if( pUp->eType==JSON_ARRAY ){
-    assert( pUp->eU==3 || (pUp->eU==0 && pUp->u.iKey==0) );
-    testcase( pUp->eU==0 );
    jsonPrintf(30, pStr, "[%d]", pUp->u.iKey);
  }else{
    assert( pUp->eType==JSON_OBJECT );
    if( (pNode->jnFlags & JNODE_LABEL)==0 ) pNode--;
-    jsonAppendObjectPathElement(pStr, pNode);
+    assert( pNode->eType==JSON_STRING );
+    assert( pNode->jnFlags & JNODE_LABEL );
+    jsonPrintf(pNode->n+1, pStr, ".%.*s", pNode->n-2, pNode->u.zJContent+1);
  }
 }

@@ -2347,7 +2244,6 @@ static int jsonEachColumn(
        u32 iKey;
        if( p->bRecursive ){
          if( p->iRowid==0 ) break;
-          assert( p->sParse.aNode[p->sParse.aUp[p->i]].eU==3 );
          iKey = p->sParse.aNode[p->sParse.aUp[p->i]].u.iKey;
        }else{
          iKey = p->iRowid;
@@ -2397,7 +2293,7 @@ static int jsonEachColumn(
        if( p->eType==JSON_ARRAY ){
          jsonPrintf(30, &x, "[%d]", p->iRowid);
        }else if( p->eType==JSON_OBJECT ){
-          jsonAppendObjectPathElement(&x, pThis);
+          jsonPrintf(pThis->n, &x, ".%.*s", pThis->n-2, pThis->u.zJContent+1);
        }
      }
      jsonResult(&x);
@@ -2455,7 +2351,7 @@ static int jsonEachBestIndex(
  /* This implementation assumes that JSON and ROOT are the last two
  ** columns in the table */
  assert( JEACH_ROOT == JEACH_JSON+1 );
-  UNUSED_PARAMETER(tab);
+  UNUSED_PARAM(tab);
  aIdx[0] = aIdx[1] = -1;
  pConstraint = pIdxInfo->aConstraint;
  for(i=0; i<pIdxInfo->nConstraint; i++, pConstraint++){
@@ -2464,7 +2360,6 @@ static int jsonEachBestIndex(
    if( pConstraint->iColumn < JEACH_JSON ) continue;
    iCol = pConstraint->iColumn - JEACH_JSON;
    assert( iCol==0 || iCol==1 );
-    testcase( iCol==0 );
    iMask = 1 << iCol;
    if( pConstraint->usable==0 ){
      unusableMask |= iMask;
@@ -2511,8 +2406,8 @@ static int jsonEachFilter(
  const char *zRoot = 0;
  sqlite3_int64 n;

-  UNUSED_PARAMETER(idxStr);
-  UNUSED_PARAMETER(argc);
+  UNUSED_PARAM(idxStr);
+  UNUSED_PARAM(argc);
  jsonEachCursorReset(p);
  if( idxNum==0 ) return SQLITE_OK;
  z = (const char*)sqlite3_value_text(argv[0]);
@@ -2562,8 +2457,6 @@ static int jsonEachFilter(
    p->iBegin = p->i = (int)(pNode - p->sParse.aNode);
    p->eType = pNode->eType;
    if( p->eType>=JSON_ARRAY ){
-      assert( pNode->eU==0 );
-      VVA( pNode->eU = 3 );
      pNode->u.iKey = 0;
      p->iEnd = p->i + pNode->n + 1;
      if( p->bRecursive ){
@@ -2637,63 +2530,103 @@ static sqlite3_module jsonTreeModule = {
  0                          /* xShadowName */
 };
 #endif /* SQLITE_OMIT_VIRTUALTABLE */
-#endif /* !defined(SQLITE_OMIT_JSON) */

-/*
-** Register JSON functions.
-*/
-void sqlite3RegisterJsonFunctions(void){
-#ifndef SQLITE_OMIT_JSON
-  static FuncDef aJsonFunc[] = {
-    JFUNCTION(json,               1, 0,  jsonRemoveFunc),
-    JFUNCTION(json_array,        -1, 0,  jsonArrayFunc),
-    JFUNCTION(json_array_length,  1, 0,  jsonArrayLengthFunc),
-    JFUNCTION(json_array_length,  2, 0,  jsonArrayLengthFunc),
-    JFUNCTION(json_extract,      -1, 0,  jsonExtractFunc),
-    JFUNCTION(->,                 2, JSON_JSON, jsonExtractFunc),
-    JFUNCTION(->>,                2, JSON_SQL, jsonExtractFunc),
-    JFUNCTION(json_insert,       -1, 0,  jsonSetFunc),
-    JFUNCTION(json_object,       -1, 0,  jsonObjectFunc),
-    JFUNCTION(json_patch,         2, 0,  jsonPatchFunc),
-    JFUNCTION(json_quote,         1, 0,  jsonQuoteFunc),
-    JFUNCTION(json_remove,       -1, 0,  jsonRemoveFunc),
-    JFUNCTION(json_replace,      -1, 0,  jsonReplaceFunc),
-    JFUNCTION(json_set,          -1, JSON_ISSET,  jsonSetFunc),
-    JFUNCTION(json_type,          1, 0,  jsonTypeFunc),
-    JFUNCTION(json_type,          2, 0,  jsonTypeFunc),
-    JFUNCTION(json_valid,         1, 0,  jsonValidFunc),
-#if SQLITE_DEBUG
-    JFUNCTION(json_parse,         1, 0,  jsonParseFunc),
-    JFUNCTION(json_test1,         1, 0,  jsonTest1Func),
-#endif
-    WAGGREGATE(json_group_array,  1, 0, 0, 
-       jsonArrayStep, jsonArrayFinal, jsonArrayValue, jsonGroupInverse,
-       SQLITE_SUBTYPE|SQLITE_UTF8|SQLITE_DETERMINISTIC|SQLITE_INNOCUOUS),
-    WAGGREGATE(json_group_object, 2, 0, 0, 
-       jsonObjectStep, jsonObjectFinal, jsonObjectValue, jsonGroupInverse,
-       SQLITE_SUBTYPE|SQLITE_UTF8|SQLITE_DETERMINISTIC|SQLITE_INNOCUOUS)
-  };
-  sqlite3InsertBuiltinFuncs(aJsonFunc, ArraySize(aJsonFunc));
-#endif
-}
+/****************************************************************************
+** The following routines are the only publically visible identifiers in this
+** file.  Call the following routines in order to register the various SQL
+** functions and the virtual table implemented by this file.
+****************************************************************************/

-#if  !defined(SQLITE_OMIT_VIRTUALTABLE) && !defined(SQLITE_OMIT_JSON)
-/*
-** Register the JSON table-valued functions
-*/
-int sqlite3JsonTableFunctions(sqlite3 *db){
+int sqlite3Json1Init(sqlite3 *db){
  int rc = SQLITE_OK;
+  unsigned int i;
  static const struct {
-    const char *zName;
-    sqlite3_module *pModule;
+     const char *zName;
+     int nArg;
+     int flag;
+     void (*xFunc)(sqlite3_context*,int,sqlite3_value**);
+  } aFunc[] = {
+    { "json",                 1, 0,   jsonRemoveFunc        },
+    { "json_array",          -1, 0,   jsonArrayFunc         },
+    { "json_array_length",    1, 0,   jsonArrayLengthFunc   },
+    { "json_array_length",    2, 0,   jsonArrayLengthFunc   },
+    { "json_extract",        -1, 0,   jsonExtractFunc       },
+    { "json_insert",         -1, 0,   jsonSetFunc           },
+    { "json_object",         -1, 0,   jsonObjectFunc        },
+    { "json_patch",           2, 0,   jsonPatchFunc         },
+    { "json_quote",           1, 0,   jsonQuoteFunc         },
+    { "json_remove",         -1, 0,   jsonRemoveFunc        },
+    { "json_replace",        -1, 0,   jsonReplaceFunc       },
+    { "json_set",            -1, 1,   jsonSetFunc           },
+    { "json_type",            1, 0,   jsonTypeFunc          },
+    { "json_type",            2, 0,   jsonTypeFunc          },
+    { "json_valid",           1, 0,   jsonValidFunc         },
+
+#if SQLITE_DEBUG
+    /* DEBUG and TESTING functions */
+    { "json_parse",           1, 0,   jsonParseFunc         },
+    { "json_test1",           1, 0,   jsonTest1Func         },
+#endif
+  };
+  static const struct {
+     const char *zName;
+     int nArg;
+     void (*xStep)(sqlite3_context*,int,sqlite3_value**);
+     void (*xFinal)(sqlite3_context*);
+     void (*xValue)(sqlite3_context*);
+  } aAgg[] = {
+    { "json_group_array",     1,
+      jsonArrayStep,   jsonArrayFinal,  jsonArrayValue  },
+    { "json_group_object",    2,
+      jsonObjectStep,  jsonObjectFinal, jsonObjectValue },
+  };
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+  static const struct {
+     const char *zName;
+     sqlite3_module *pModule;
  } aMod[] = {
    { "json_each",            &jsonEachModule               },
    { "json_tree",            &jsonTreeModule               },
  };
-  unsigned int i;
+#endif
+  static const int enc = 
+       SQLITE_UTF8 |
+       SQLITE_DETERMINISTIC |
+       SQLITE_INNOCUOUS;
+  for(i=0; i<sizeof(aFunc)/sizeof(aFunc[0]) && rc==SQLITE_OK; i++){
+    rc = sqlite3_create_function(db, aFunc[i].zName, aFunc[i].nArg, enc,
+                                 (void*)&aFunc[i].flag,
+                                 aFunc[i].xFunc, 0, 0);
+  }
+#ifndef SQLITE_OMIT_WINDOWFUNC
+  for(i=0; i<sizeof(aAgg)/sizeof(aAgg[0]) && rc==SQLITE_OK; i++){
+    rc = sqlite3_create_window_function(db, aAgg[i].zName, aAgg[i].nArg,
+                                 SQLITE_SUBTYPE | enc, 0,
+                                 aAgg[i].xStep, aAgg[i].xFinal,
+                                 aAgg[i].xValue, jsonGroupInverse, 0);
+  }
+#endif
+#ifndef SQLITE_OMIT_VIRTUALTABLE
  for(i=0; i<sizeof(aMod)/sizeof(aMod[0]) && rc==SQLITE_OK; i++){
    rc = sqlite3_create_module(db, aMod[i].zName, aMod[i].pModule, 0);
  }
+#endif
  return rc;
 }
-#endif /* !defined(SQLITE_OMIT_VIRTUALTABLE) && !defined(SQLITE_OMIT_JSON) */
+
+
+#ifndef SQLITE_CORE
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_json_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)pzErrMsg;  /* Unused parameter */
+  return sqlite3Json1Init(db);
+}
+#endif
+#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_JSON1) */
@@ -559,7 +559,6 @@ int sqlite3_memvfs_init(
  int rc = SQLITE_OK;
  SQLITE_EXTENSION_INIT2(pApi);
  mem_vfs.pAppData = sqlite3_vfs_find(0);
-  if( mem_vfs.pAppData==0 ) return SQLITE_ERROR;
  mem_vfs.szOsFile = sizeof(MemFile);
  rc = sqlite3_vfs_register(&mem_vfs, 1);
 #ifdef MEMVFS_TEST
@@ -1,461 +0,0 @@
-/*
-** 2022-01-19
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-**
-** This file implements a virtual-table that returns information about
-** how the query planner called the xBestIndex method.  This virtual table
-** is intended for testing and debugging only.
-**
-** The schema of the virtual table is this:
-**
-**    CREATE TABLE qpvtab(
-**      vn     TEXT,           -- Name of an sqlite3_index_info field
-**      ix     INTEGER,        -- Array index or value
-**      cn     TEXT,           -- Column name
-**      op     INTEGER,        -- operator
-**      ux     BOOLEAN,        -- "usable" field
-**      rhs    TEXT,           -- sqlite3_vtab_rhs_value()
-**
-**      a, b, c, d, e,         -- Extra columns to attach constraints to
-**
-**      flags    INTEGER HIDDEN  -- control flags
-**    );
-**
-** The virtual table returns a description of the sqlite3_index_info object
-** that was provided to the (successful) xBestIndex method.  There is one
-** row in the result table for each field in the sqlite3_index_info object.
-**
-** The values of the "a" through "e" columns are one of:
-**
-**    1.   TEXT - the same as the column name
-**    2.   INTEGER - 1 for "a", 2 for "b", and so forth
-**
-** Option 1 is the default behavior.  2 is use if there is a usable
-** constraint on "flags" with an integer right-hand side that where the
-** value of the right-hand side has its 0x001 bit set.
-**
-** All constraints on columns "a" through "e" are marked as "omit".
-**
-** If there is a usable constraint on "flags" that has a RHS value that
-** is an integer and that integer has its 0x02 bit set, then the
-** orderByConsumed flag is set.
-**
-** FLAGS SUMMARY:
-**
-**   0x001               Columns 'a' through 'e' have INT values
-**   0x002               orderByConsumed is set
-**   0x004               OFFSET and LIMIT have omit set
-**
-** COMPILE:
-**
-**   gcc -Wall -g -shared -fPIC -I. qpvtab.c -o qqvtab.so
-**
-** EXAMPLE USAGE:
-**
-**   .load ./qpvtab
-**   SELECT rowid, *, flags FROM qpvtab(102)
-**    WHERE a=19
-**      AND b BETWEEN 4.5 and 'hello'
-**      AND c<>x'aabbcc'
-**    ORDER BY d, e DESC;
-*/
-#if !defined(SQLITEINT_H)
-#include "sqlite3ext.h"
-#endif
-SQLITE_EXTENSION_INIT1
-#include <string.h>
-#include <assert.h>
-#include <stdlib.h>
-
-#if !defined(SQLITE_OMIT_VIRTUALTABLE)
-
-/* qpvtab_vtab is a subclass of sqlite3_vtab which is
-** underlying representation of the virtual table
-*/
-typedef struct qpvtab_vtab qpvtab_vtab;
-struct qpvtab_vtab {
-  sqlite3_vtab base;  /* Base class - must be first */
-};
-
-/* qpvtab_cursor is a subclass of sqlite3_vtab_cursor which will
-** serve as the underlying representation of a cursor that scans
-** over rows of the result
-*/
-typedef struct qpvtab_cursor qpvtab_cursor;
-struct qpvtab_cursor {
-  sqlite3_vtab_cursor base;  /* Base class - must be first */
-  sqlite3_int64 iRowid;      /* The rowid */
-  const char *zData;         /* Data to return */
-  int nData;                 /* Number of bytes of data */
-  int flags;                 /* Flags value */
-};
-
-/*
-** Names of columns
-*/
-static const char *azColname[] = {
-  "vn",
-  "ix",
-  "cn",
-  "op",
-  "ux",
-  "rhs",
-  "a", "b", "c", "d", "e",
-  "flags",
-  ""
-};
-
-/*
-** The qpvtabConnect() method is invoked to create a new
-** qpvtab virtual table.
-*/
-static int qpvtabConnect(
-  sqlite3 *db,
-  void *pAux,
-  int argc, const char *const*argv,
-  sqlite3_vtab **ppVtab,
-  char **pzErr
-){
-  qpvtab_vtab *pNew;
-  int rc;
-
-  rc = sqlite3_declare_vtab(db,
-         "CREATE TABLE x("
-         " vn TEXT,"
-         " ix INT,"
-         " cn TEXT,"
-         " op INT,"
-         " ux BOOLEAN,"
-         " rhs TEXT,"
-         " a, b, c, d, e,"
-         " flags INT HIDDEN)"
-       );
-#define QPVTAB_VN      0
-#define QPVTAB_IX      1
-#define QPVTAB_CN      2
-#define QPVTAB_OP      3
-#define QPVTAB_UX      4
-#define QPVTAB_RHS     5
-#define QPVTAB_A       6
-#define QPVTAB_B       7
-#define QPVTAB_C       8
-#define QPVTAB_D       9
-#define QPVTAB_E      10
-#define QPVTAB_FLAGS  11
-#define QPVTAB_NONE   12
-  if( rc==SQLITE_OK ){
-    pNew = sqlite3_malloc( sizeof(*pNew) );
-    *ppVtab = (sqlite3_vtab*)pNew;
-    if( pNew==0 ) return SQLITE_NOMEM;
-    memset(pNew, 0, sizeof(*pNew));
-  }
-  return rc;
-}
-
-/*
-** This method is the destructor for qpvtab_vtab objects.
-*/
-static int qpvtabDisconnect(sqlite3_vtab *pVtab){
-  qpvtab_vtab *p = (qpvtab_vtab*)pVtab;
-  sqlite3_free(p);
-  return SQLITE_OK;
-}
-
-/*
-** Constructor for a new qpvtab_cursor object.
-*/
-static int qpvtabOpen(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){
-  qpvtab_cursor *pCur;
-  pCur = sqlite3_malloc( sizeof(*pCur) );
-  if( pCur==0 ) return SQLITE_NOMEM;
-  memset(pCur, 0, sizeof(*pCur));
-  *ppCursor = &pCur->base;
-  return SQLITE_OK;
-}
-
-/*
-** Destructor for a qpvtab_cursor.
-*/
-static int qpvtabClose(sqlite3_vtab_cursor *cur){
-  qpvtab_cursor *pCur = (qpvtab_cursor*)cur;
-  sqlite3_free(pCur);
-  return SQLITE_OK;
-}
-
-
-/*
-** Advance a qpvtab_cursor to its next row of output.
-*/
-static int qpvtabNext(sqlite3_vtab_cursor *cur){
-  qpvtab_cursor *pCur = (qpvtab_cursor*)cur;
-  if( pCur->iRowid<pCur->nData ){
-    const char *z = &pCur->zData[pCur->iRowid];
-    const char *zEnd = strchr(z, '\n');
-    if( zEnd ) zEnd++;
-    pCur->iRowid = (int)(zEnd - pCur->zData);
-  }
-  return SQLITE_OK;
-}
-
-/*
-** Return values of columns for the row at which the qpvtab_cursor
-** is currently pointing.
-*/
-static int qpvtabColumn(
-  sqlite3_vtab_cursor *cur,   /* The cursor */
-  sqlite3_context *ctx,       /* First argument to sqlite3_result_...() */
-  int i                       /* Which column to return */
-){
-  qpvtab_cursor *pCur = (qpvtab_cursor*)cur;
-  if( i>=QPVTAB_VN && i<=QPVTAB_RHS && pCur->iRowid<pCur->nData ){
-    const char *z = &pCur->zData[pCur->iRowid];
-    const char *zEnd;
-    int j;
-    j = QPVTAB_VN;
-    while(1){
-      zEnd = strchr(z, j==QPVTAB_RHS ? '\n' : ',');
-      if( j==i || zEnd==0 ) break;
-      z = zEnd+1;
-      j++;
-    }
-    if( zEnd==z ){
-      sqlite3_result_null(ctx);
-    }else if( i==QPVTAB_IX || i==QPVTAB_OP || i==QPVTAB_UX ){
-      sqlite3_result_int(ctx, atoi(z));
-    }else{
-      sqlite3_result_text64(ctx, z, zEnd-z, SQLITE_TRANSIENT, SQLITE_UTF8);
-    }
-  }else if( i>=QPVTAB_A && i<=QPVTAB_E ){
-    if( pCur->flags & 0x001 ){
-      sqlite3_result_int(ctx, i-QPVTAB_A+1);
-    }else{
-      char x = 'a'+i-QPVTAB_A;
-      sqlite3_result_text64(ctx, &x, 1, SQLITE_TRANSIENT, SQLITE_UTF8);
-    }
-  }else if( i==QPVTAB_FLAGS ){
-    sqlite3_result_int(ctx, pCur->flags);
-  }
-  return SQLITE_OK;
-}
-
-/*
-** Return the rowid for the current row.  In this implementation, the
-** rowid is the same as the output value.
-*/
-static int qpvtabRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
-  qpvtab_cursor *pCur = (qpvtab_cursor*)cur;
-  *pRowid = pCur->iRowid;
-  return SQLITE_OK;
-}
-
-/*
-** Return TRUE if the cursor has been moved off of the last
-** row of output.
-*/
-static int qpvtabEof(sqlite3_vtab_cursor *cur){
-  qpvtab_cursor *pCur = (qpvtab_cursor*)cur;
-  return pCur->iRowid>=pCur->nData;
-}
-
-/*
-** This method is called to "rewind" the qpvtab_cursor object back
-** to the first row of output.  This method is always called at least
-** once prior to any call to qpvtabColumn() or qpvtabRowid() or 
-** qpvtabEof().
-*/
-static int qpvtabFilter(
-  sqlite3_vtab_cursor *pVtabCursor, 
-  int idxNum, const char *idxStr,
-  int argc, sqlite3_value **argv
-){
-  qpvtab_cursor *pCur = (qpvtab_cursor *)pVtabCursor;
-  pCur->iRowid = 0;
-  pCur->zData = idxStr;
-  pCur->nData = (int)strlen(idxStr);
-  pCur->flags = idxNum;
-  return SQLITE_OK;
-}
-
-/*
-** Append the text of a value to pStr
-*/
-static void qpvtabStrAppendValue(
-  sqlite3_str *pStr,
-  sqlite3_value *pVal
-){
-  switch( sqlite3_value_type(pVal) ){
-    case SQLITE_NULL:
-      sqlite3_str_appendf(pStr, "NULL");
-      break;
-    case SQLITE_INTEGER:
-      sqlite3_str_appendf(pStr, "%lld", sqlite3_value_int64(pVal));
-      break;
-    case SQLITE_FLOAT:
-      sqlite3_str_appendf(pStr, "%!f", sqlite3_value_double(pVal));
-      break;
-    case SQLITE_TEXT: {
-      int i;
-      const char *a = (const char*)sqlite3_value_text(pVal);
-      int n = sqlite3_value_bytes(pVal);
-      sqlite3_str_append(pStr, "'", 1);
-      for(i=0; i<n; i++){
-        char c = a[i];
-        if( c=='\n' ) c = ' ';
-        sqlite3_str_append(pStr, &c, 1);
-        if( c=='\'' ) sqlite3_str_append(pStr, &c, 1);
-      }
-      sqlite3_str_append(pStr, "'", 1);
-      break;
-    }
-    case SQLITE_BLOB: {
-      int i;
-      const unsigned char *a = sqlite3_value_blob(pVal);
-      int n = sqlite3_value_bytes(pVal);
-      sqlite3_str_append(pStr, "x'", 2);
-      for(i=0; i<n; i++){
-        sqlite3_str_appendf(pStr, "%02x", a[i]);
-      }
-      sqlite3_str_append(pStr, "'", 1);
-      break;
-    }
-  }
-}
-
-/*
-** SQLite will invoke this method one or more times while planning a query
-** that uses the virtual table.  This routine needs to create
-** a query plan for each invocation and compute an estimated cost for that
-** plan.
-*/
-static int qpvtabBestIndex(
-  sqlite3_vtab *tab,
-  sqlite3_index_info *pIdxInfo
-){
-  sqlite3_str *pStr = sqlite3_str_new(0);
-  int i, k = 0;
-  int rc;
-  sqlite3_str_appendf(pStr, "nConstraint,%d,,,,\n", pIdxInfo->nConstraint);
-  for(i=0; i<pIdxInfo->nConstraint; i++){
-    sqlite3_value *pVal;
-    int iCol = pIdxInfo->aConstraint[i].iColumn;
-    int op = pIdxInfo->aConstraint[i].op;
-    if( iCol==QPVTAB_FLAGS &&  pIdxInfo->aConstraint[i].usable ){
-      pVal = 0;
-      rc = sqlite3_vtab_rhs_value(pIdxInfo, i, &pVal);
-      assert( rc==SQLITE_OK || pVal==0 );
-      if( pVal ){
-        pIdxInfo->idxNum = sqlite3_value_int(pVal);
-        if( pIdxInfo->idxNum & 0x002 ) pIdxInfo->orderByConsumed = 1;
-      }
-    }
-    if( op==SQLITE_INDEX_CONSTRAINT_LIMIT
-     || op==SQLITE_INDEX_CONSTRAINT_OFFSET
-    ){
-      iCol = QPVTAB_NONE;
-    }
-    sqlite3_str_appendf(pStr,"aConstraint,%d,%s,%d,%d,",
-       i,
-       azColname[iCol],
-       op,
-       pIdxInfo->aConstraint[i].usable);
-    pVal = 0;
-    rc = sqlite3_vtab_rhs_value(pIdxInfo, i, &pVal);
-    assert( rc==SQLITE_OK || pVal==0 );
-    if( pVal ){
-      qpvtabStrAppendValue(pStr, pVal);
-    }
-    sqlite3_str_append(pStr, "\n", 1);
-  }
-  for(i=0; i<pIdxInfo->nConstraint; i++){
-    int iCol = pIdxInfo->aConstraint[i].iColumn;
-    int op = pIdxInfo->aConstraint[i].op;
-    if( op==SQLITE_INDEX_CONSTRAINT_LIMIT
-     || op==SQLITE_INDEX_CONSTRAINT_OFFSET
-    ){
-      iCol = QPVTAB_NONE;
-    }
-    if( iCol>=QPVTAB_A && pIdxInfo->aConstraint[i].usable ){
-      pIdxInfo->aConstraintUsage[i].argvIndex = ++k;
-      if( iCol<=QPVTAB_FLAGS || (pIdxInfo->idxNum & 0x004)!=0 ){
-        pIdxInfo->aConstraintUsage[i].omit = 1;
-      }
-    }
-  }
-  sqlite3_str_appendf(pStr, "nOrderBy,%d,,,,\n", pIdxInfo->nOrderBy);
-  for(i=0; i<pIdxInfo->nOrderBy; i++){
-    int iCol = pIdxInfo->aOrderBy[i].iColumn;
-    sqlite3_str_appendf(pStr, "aOrderBy,%d,%s,%d,,\n",i,
-      iCol>=0 ? azColname[iCol] : "rowid",
-      pIdxInfo->aOrderBy[i].desc
-    );
-  }
-  sqlite3_str_appendf(pStr, "sqlite3_vtab_distinct,%d,,,,\n", 
-                      sqlite3_vtab_distinct(pIdxInfo));
-  sqlite3_str_appendf(pStr, "idxFlags,%d,,,,\n", pIdxInfo->idxFlags);
-  sqlite3_str_appendf(pStr, "colUsed,%d,,,,\n", (int)pIdxInfo->colUsed);
-  pIdxInfo->estimatedCost = (double)10;
-  pIdxInfo->estimatedRows = 10;
-  sqlite3_str_appendf(pStr, "idxNum,%d,,,,\n", pIdxInfo->idxNum);
-  sqlite3_str_appendf(pStr, "orderByConsumed,%d,,,,\n",
-                      pIdxInfo->orderByConsumed);
-  pIdxInfo->idxStr = sqlite3_str_finish(pStr);
-  pIdxInfo->needToFreeIdxStr = 1;
-  return SQLITE_OK;
-}
-
-/*
-** This following structure defines all the methods for the 
-** virtual table.
-*/
-static sqlite3_module qpvtabModule = {
-  /* iVersion    */ 0,
-  /* xCreate     */ 0,
-  /* xConnect    */ qpvtabConnect,
-  /* xBestIndex  */ qpvtabBestIndex,
-  /* xDisconnect */ qpvtabDisconnect,
-  /* xDestroy    */ 0,
-  /* xOpen       */ qpvtabOpen,
-  /* xClose      */ qpvtabClose,
-  /* xFilter     */ qpvtabFilter,
-  /* xNext       */ qpvtabNext,
-  /* xEof        */ qpvtabEof,
-  /* xColumn     */ qpvtabColumn,
-  /* xRowid      */ qpvtabRowid,
-  /* xUpdate     */ 0,
-  /* xBegin      */ 0,
-  /* xSync       */ 0,
-  /* xCommit     */ 0,
-  /* xRollback   */ 0,
-  /* xFindMethod */ 0,
-  /* xRename     */ 0,
-  /* xSavepoint  */ 0,
-  /* xRelease    */ 0,
-  /* xRollbackTo */ 0,
-  /* xShadowName */ 0
-};
-#endif /* SQLITE_OMIT_VIRTUALTABLE */
-
-
-#ifdef _WIN32
-__declspec(dllexport)
-#endif
-int sqlite3_qpvtab_init(
-  sqlite3 *db, 
-  char **pzErrMsg, 
-  const sqlite3_api_routines *pApi
-){
-  int rc = SQLITE_OK;
-  SQLITE_EXTENSION_INIT2(pApi);
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  rc = sqlite3_create_module(db, "qpvtab", &qpvtabModule, 0);
-#endif
-  return rc;
-}
@@ -72,7 +72,6 @@ SQLITE_EXTENSION_INIT1

 /* The end-of-input character */
 #define RE_EOF            0    /* End of input */
-#define RE_START  0xfffffff    /* Start of input - larger than an UTF-8 */

 /* The NFA is implemented as sequence of opcodes taken from the following
 ** set.  Each opcode has a single integer argument.
@@ -94,33 +93,6 @@ SQLITE_EXTENSION_INIT1
 #define RE_OP_SPACE      15    /* space:  [ \t\n\r\v\f] */
 #define RE_OP_NOTSPACE   16    /* Not a digit */
 #define RE_OP_BOUNDARY   17    /* Boundary between word and non-word */
-#define RE_OP_ATSTART    18    /* Currently at the start of the string */
-
-#if defined(SQLITE_DEBUG)
-/* Opcode names used for symbolic debugging */
-static const char *ReOpName[] = {
-  "EOF",
-  "MATCH",
-  "ANY",
-  "ANYSTAR",
-  "FORK",
-  "GOTO",
-  "ACCEPT",
-  "CC_INC",
-  "CC_EXC",
-  "CC_VALUE",
-  "CC_RANGE",
-  "WORD",
-  "NOTWORD",
-  "DIGIT",
-  "NOTDIGIT",
-  "SPACE",
-  "NOTSPACE",
-  "BOUNDARY",
-  "ATSTART",
-};
-#endif /* SQLITE_DEBUG */
-

 /* Each opcode is a "state" in the NFA */
 typedef unsigned short ReStateNumber;
@@ -155,7 +127,7 @@ struct ReCompiled {
  int *aArg;                  /* Arguments to each operator */
  unsigned (*xNextChar)(ReInput*);  /* Next character function */
  unsigned char zInit[12];    /* Initial text to match */
-  int nInit;                  /* Number of bytes in zInit */
+  int nInit;                  /* Number of characters in zInit */
  unsigned nState;            /* Number of entries in aOp[] and aArg[] */
  unsigned nAlloc;            /* Slots allocated for aOp[] and aArg[] */
 };
@@ -228,7 +200,7 @@ static int re_match(ReCompiled *pRe, const unsigned char *zIn, int nIn){
  ReStateNumber *pToFree;
  unsigned int i = 0;
  unsigned int iSwap = 0;
-  int c = RE_START;
+  int c = RE_EOF+1;
  int cPrev = 0;
  int rc = 0;
  ReInput in;
@@ -247,7 +219,6 @@ static int re_match(ReCompiled *pRe, const unsigned char *zIn, int nIn){
      in.i++;
    }
    if( in.i+pRe->nInit>in.mx ) return 0;
-    c = RE_START-1;
  }

  if( pRe->nState<=(sizeof(aSpace)/(sizeof(aSpace[0])*2)) ){
@@ -276,12 +247,8 @@ static int re_match(ReCompiled *pRe, const unsigned char *zIn, int nIn){
          if( pRe->aArg[x]==c ) re_add_state(pNext, x+1);
          break;
        }
-        case RE_OP_ATSTART: {
-          if( cPrev==RE_START ) re_add_state(pThis, x+1);
-          break;
-        }
        case RE_OP_ANY: {
-          if( c!=0 ) re_add_state(pNext, x+1);
+          re_add_state(pNext, x+1);
          break;
        }
        case RE_OP_WORD: {
@@ -289,7 +256,7 @@ static int re_match(ReCompiled *pRe, const unsigned char *zIn, int nIn){
          break;
        }
        case RE_OP_NOTWORD: {
-          if( !re_word_char(c) && c!=0 ) re_add_state(pNext, x+1);
+          if( !re_word_char(c) ) re_add_state(pNext, x+1);
          break;
        }
        case RE_OP_DIGIT: {
@@ -297,7 +264,7 @@ static int re_match(ReCompiled *pRe, const unsigned char *zIn, int nIn){
          break;
        }
        case RE_OP_NOTDIGIT: {
-          if( !re_digit_char(c) && c!=0 ) re_add_state(pNext, x+1);
+          if( !re_digit_char(c) ) re_add_state(pNext, x+1);
          break;
        }
        case RE_OP_SPACE: {
@@ -305,7 +272,7 @@ static int re_match(ReCompiled *pRe, const unsigned char *zIn, int nIn){
          break;
        }
        case RE_OP_NOTSPACE: {
-          if( !re_space_char(c) && c!=0 ) re_add_state(pNext, x+1);
+          if( !re_space_char(c) ) re_add_state(pNext, x+1);
          break;
        }
        case RE_OP_BOUNDARY: {
@@ -330,11 +297,8 @@ static int re_match(ReCompiled *pRe, const unsigned char *zIn, int nIn){
          rc = 1;
          goto re_match_end;
        }
+        case RE_OP_CC_INC:
        case RE_OP_CC_EXC: {
-          if( c==0 ) break;
-          /* fall-through */ goto re_op_cc_inc;
-        }
-        case RE_OP_CC_INC: re_op_cc_inc: {
          int j = 1;
          int n = pRe->aArg[x];
          int hit = 0;
@@ -355,15 +319,13 @@ static int re_match(ReCompiled *pRe, const unsigned char *zIn, int nIn){
          }
          if( pRe->aOp[x]==RE_OP_CC_EXC ) hit = !hit;
          if( hit ) re_add_state(pNext, x+n);
-          break;
+          break;            
        }
      }
    }
  }
  for(i=0; i<pNext->nState; i++){
-    int x = pNext->aState[i];
-    while( pRe->aOp[x]==RE_OP_GOTO ) x += pRe->aArg[x];
-    if( pRe->aOp[x]==RE_OP_ACCEPT ){ rc = 1; break; }
+    if( pRe->aOp[pNext->aState[i]]==RE_OP_ACCEPT ){ rc = 1; break; }
  }
 re_match_end:
  sqlite3_free(pToFree);
@@ -518,6 +480,7 @@ static const char *re_subcompile_string(ReCompiled *p){
    iStart = p->nState;
    switch( c ){
      case '|':
+      case '$': 
      case ')': {
        p->sIn.i--;
        return 0;
@@ -533,7 +496,7 @@ static const char *re_subcompile_string(ReCompiled *p){
        if( rePeek(p)=='*' ){
          re_append(p, RE_OP_ANYSTAR, 0);
          p->sIn.i++;
-        }else{
+        }else{ 
          re_append(p, RE_OP_ANY, 0);
        }
        break;
@@ -554,14 +517,6 @@ static const char *re_subcompile_string(ReCompiled *p){
        re_insert(p, iPrev, RE_OP_FORK, p->nState - iPrev+1);
        break;
      }
-      case '$': {
-        re_append(p, RE_OP_MATCH, RE_EOF);
-        break;
-      }
-      case '^': {
-        re_append(p, RE_OP_ATSTART, 0);
-        break;
-      }
      case '{': {
        int m = 0, n = 0;
        int sz, j;
@@ -580,7 +535,6 @@ static const char *re_subcompile_string(ReCompiled *p){
        if( m==0 ){
          if( n==0 ) return "both m and n are zero in '{m,n}'";
          re_insert(p, iPrev, RE_OP_FORK, sz+1);
-          iPrev++;
          n--;
        }else{
          for(j=1; j<m; j++) re_copy(p, iPrev, sz);
@@ -699,7 +653,11 @@ static const char *re_compile(ReCompiled **ppRe, const char *zIn, int noCase){
    re_free(pRe);
    return zErr;
  }
-  if( pRe->sIn.i>=pRe->sIn.mx ){
+  if( rePeek(pRe)=='$' && pRe->sIn.i+1>=pRe->sIn.mx ){
+    re_append(pRe, RE_OP_MATCH, RE_EOF);
+    re_append(pRe, RE_OP_ACCEPT, 0);
+    *ppRe = pRe;
+  }else if( pRe->sIn.i>=pRe->sIn.mx ){
    re_append(pRe, RE_OP_ACCEPT, 0);
    *ppRe = pRe;
  }else{
@@ -715,8 +673,8 @@ static const char *re_compile(ReCompiled **ppRe, const char *zIn, int noCase){
  ** regex engine over the string.  Do not worry able trying to match
  ** unicode characters beyond plane 0 - those are very rare and this is
  ** just an optimization. */
-  if( pRe->aOp[0]==RE_OP_ANYSTAR && !noCase ){
-    for(j=0, i=1; j<(int)sizeof(pRe->zInit)-2 && pRe->aOp[i]==RE_OP_MATCH; i++){
+  if( pRe->aOp[0]==RE_OP_ANYSTAR ){
+    for(j=0, i=1; j<sizeof(pRe->zInit)-2 && pRe->aOp[i]==RE_OP_MATCH; i++){
      unsigned x = pRe->aArg[i];
      if( x<=127 ){
        pRe->zInit[j++] = (unsigned char)x;
@@ -724,7 +682,7 @@ static const char *re_compile(ReCompiled **ppRe, const char *zIn, int noCase){
        pRe->zInit[j++] = (unsigned char)(0xc0 | (x>>6));
        pRe->zInit[j++] = 0x80 | (x&0x3f);
      }else if( x<=0xffff ){
-        pRe->zInit[j++] = (unsigned char)(0xe0 | (x>>12));
+        pRe->zInit[j++] = (unsigned char)(0xd0 | (x>>12));
        pRe->zInit[j++] = 0x80 | ((x>>6)&0x3f);
        pRe->zInit[j++] = 0x80 | (x&0x3f);
      }else{
@@ -747,8 +705,8 @@ static const char *re_compile(ReCompiled **ppRe, const char *zIn, int noCase){
 ** is implemented as regexp(B,A).
 */
 static void re_sql_func(
-  sqlite3_context *context,
-  int argc,
+  sqlite3_context *context, 
+  int argc, 
  sqlite3_value **argv
 ){
  ReCompiled *pRe;          /* Compiled regular expression */
@@ -757,12 +715,11 @@ static void re_sql_func(
  const char *zErr;         /* Compile error message */
  int setAux = 0;           /* True to invoke sqlite3_set_auxdata() */

-  (void)argc;  /* Unused */
  pRe = sqlite3_get_auxdata(context, 0);
  if( pRe==0 ){
    zPattern = (const char*)sqlite3_value_text(argv[0]);
    if( zPattern==0 ) return;
-    zErr = re_compile(&pRe, zPattern, sqlite3_user_data(context)!=0);
+    zErr = re_compile(&pRe, zPattern, 0);
    if( zErr ){
      re_free(pRe);
      sqlite3_result_error(context, zErr, -1);
@@ -783,67 +740,6 @@ static void re_sql_func(
  }
 }

-#if defined(SQLITE_DEBUG)
-/*
-** This function is used for testing and debugging only.  It is only available
-** if the SQLITE_DEBUG compile-time option is used.
-**
-** Compile a regular expression and then convert the compiled expression into
-** text and return that text.
-*/
-static void re_bytecode_func(
-  sqlite3_context *context,
-  int argc,
-  sqlite3_value **argv
-){
-  const char *zPattern;
-  const char *zErr;
-  ReCompiled *pRe;
-  sqlite3_str *pStr;
-  int i;
-  int n;
-  char *z;
-
-  zPattern = (const char*)sqlite3_value_text(argv[0]);
-  if( zPattern==0 ) return;
-  zErr = re_compile(&pRe, zPattern, sqlite3_user_data(context)!=0);
-  if( zErr ){
-    re_free(pRe);
-    sqlite3_result_error(context, zErr, -1);
-    return;
-  }
-  if( pRe==0 ){
-    sqlite3_result_error_nomem(context);
-    return;
-  }
-  pStr = sqlite3_str_new(0);
-  if( pStr==0 ) goto re_bytecode_func_err;
-  if( pRe->nInit>0 ){
-    sqlite3_str_appendf(pStr, "INIT     ");
-    for(i=0; i<pRe->nInit; i++){
-      sqlite3_str_appendf(pStr, "%02x", pRe->zInit[i]);
-    }
-    sqlite3_str_appendf(pStr, "\n");
-  }
-  for(i=0; (unsigned)i<pRe->nState; i++){
-    sqlite3_str_appendf(pStr, "%-8s %4d\n",
-         ReOpName[(unsigned char)pRe->aOp[i]], pRe->aArg[i]);
-  }
-  n = sqlite3_str_length(pStr);
-  z = sqlite3_str_finish(pStr);
-  if( n==0 ){
-    sqlite3_free(z);
-  }else{
-    sqlite3_result_text(context, z, n-1, sqlite3_free);
-  }
-
-re_bytecode_func_err:
-  re_free(pRe);
-}
-
-#endif /* SQLITE_DEBUG */
-
-
 /*
 ** Invoke this routine to register the regexp() function with the
 ** SQLite database connection.
@@ -858,23 +754,7 @@ int sqlite3_regexp_init(
 ){
  int rc = SQLITE_OK;
  SQLITE_EXTENSION_INIT2(pApi);
-  (void)pzErrMsg;  /* Unused */
-  rc = sqlite3_create_function(db, "regexp", 2, 
-                            SQLITE_UTF8|SQLITE_INNOCUOUS|SQLITE_DETERMINISTIC,
-                            0, re_sql_func, 0, 0);
-  if( rc==SQLITE_OK ){
-    /* The regexpi(PATTERN,STRING) function is a case-insensitive version
-    ** of regexp(PATTERN,STRING). */
-    rc = sqlite3_create_function(db, "regexpi", 2,
-                            SQLITE_UTF8|SQLITE_INNOCUOUS|SQLITE_DETERMINISTIC,
-                            (void*)db, re_sql_func, 0, 0);
-#if defined(SQLITE_DEBUG)
-    if( rc==SQLITE_OK ){
-      rc = sqlite3_create_function(db, "regexp_bytecode", 1,
-                            SQLITE_UTF8|SQLITE_INNOCUOUS|SQLITE_DETERMINISTIC,
-                            0, re_bytecode_func, 0, 0);
-    }
-#endif /* SQLITE_DEBUG */
-  }
+  rc = sqlite3_create_function(db, "regexp", 2, SQLITE_UTF8|SQLITE_INNOCUOUS,
+                               0, re_sql_func, 0, 0);
  return rc;
 }
@@ -323,12 +323,11 @@ static int seriesFilter(
 **  (8)  output in descending order
 */
 static int seriesBestIndex(
-  sqlite3_vtab *pVTab,
+  sqlite3_vtab *tabUnused,
  sqlite3_index_info *pIdxInfo
 ){
  int i, j;              /* Loop over constraints */
  int idxNum = 0;        /* The query plan bitmask */
-  int bStartSeen = 0;    /* EQ constraint seen on the START column */
  int unusableMask = 0;  /* Mask of unusable constraints */
  int nArg = 0;          /* Number of arguments that seriesFilter() expects */
  int aIdx[3];           /* Constraints on start, stop, and step */
@@ -338,7 +337,7 @@ static int seriesBestIndex(
  ** are the last three columns in the virtual table. */
  assert( SERIES_COLUMN_STOP == SERIES_COLUMN_START+1 );
  assert( SERIES_COLUMN_STEP == SERIES_COLUMN_START+2 );
-
+  (void)tabUnused;
  aIdx[0] = aIdx[1] = aIdx[2] = -1;
  pConstraint = pIdxInfo->aConstraint;
  for(i=0; i<pIdxInfo->nConstraint; i++, pConstraint++){
@@ -348,7 +347,6 @@ static int seriesBestIndex(
    iCol = pConstraint->iColumn - SERIES_COLUMN_START;
    assert( iCol>=0 && iCol<=2 );
    iMask = 1 << iCol;
-    if( iCol==0 ) bStartSeen = 1;
    if( pConstraint->usable==0 ){
      unusableMask |=  iMask;
      continue;
@@ -363,18 +361,6 @@ static int seriesBestIndex(
      pIdxInfo->aConstraintUsage[j].omit = !SQLITE_SERIES_CONSTRAINT_VERIFY;
    }
  }
-  /* The current generate_column() implementation requires at least one
-  ** argument (the START value).  Legacy versions assumed START=0 if the
-  ** first argument was omitted.  Compile with -DZERO_ARGUMENT_GENERATE_SERIES
-  ** to obtain the legacy behavior */
-#ifndef ZERO_ARGUMENT_GENERATE_SERIES
-  if( !bStartSeen ){
-    sqlite3_free(pVTab->zErrMsg);
-    pVTab->zErrMsg = sqlite3_mprintf(
-        "first argument to \"generate_series()\" missing or unusable");
-    return SQLITE_ERROR;
-  }
-#endif
  if( (unusableMask & ~idxNum)!=0 ){
    /* The start, stop, and step columns are inputs.  Therefore if there
    ** are unusable constraints on any of start, stop, or step then
@@ -386,7 +372,7 @@ static int seriesBestIndex(
    ** the preferred case */
    pIdxInfo->estimatedCost = (double)(2 - ((idxNum&4)!=0));
    pIdxInfo->estimatedRows = 1000;
-    if( pIdxInfo->nOrderBy>=1 && pIdxInfo->aOrderBy[0].iColumn==0 ){
+    if( pIdxInfo->nOrderBy==1 ){
      if( pIdxInfo->aOrderBy[0].desc ){
        idxNum |= 8;
      }else{
@@ -448,7 +434,7 @@ int sqlite3_series_init(
  int rc = SQLITE_OK;
  SQLITE_EXTENSION_INIT2(pApi);
 #ifndef SQLITE_OMIT_VIRTUALTABLE
-  if( sqlite3_libversion_number()<3008012 && pzErrMsg!=0 ){
+  if( sqlite3_libversion_number()<3008012 ){
    *pzErrMsg = sqlite3_mprintf(
        "generate_series() requires SQLite 3.8.12 or later");
    return SQLITE_ERROR;
@@ -71,7 +71,7 @@ struct SHA1Context {
 /*
 * Hash a single 512-bit block. This is the core of the algorithm.
 */
-static void SHA1Transform(unsigned int state[5], const unsigned char buffer[64]){
+void SHA1Transform(unsigned int state[5], const unsigned char buffer[64]){
  unsigned int qq[5]; /* a, b, c, d, e; */
  static int one = 1;
  unsigned int block[16];
@@ -19,7 +19,7 @@
 ** The sha3(X) function computes the SHA3 hash of the input X, or NULL if
 ** X is NULL.
 **
-** The sha3_query(Y) function evaluates all queries in the SQL statements of Y
+** The sha3_query(Y) function evalutes all queries in the SQL statements of Y
 ** and returns a hash of their results.
 **
 ** The SIZE argument is optional.  If omitted, the SHA3-256 hash algorithm
@@ -436,7 +436,6 @@ static void SHA3Update(
  unsigned int nData
 ){
  unsigned int i = 0;
-  if( aData==0 ) return;
 #if SHA3_BYTEORDER==1234
  if( (p->nLoaded % 8)==0 && ((aData - (const unsigned char*)0)&7)==0 ){
    for(; i+7<nData; i+=8){
@@ -30,16 +30,6 @@ SQLITE_EXTENSION_INIT1

 #ifndef SQLITE_OMIT_VIRTUALTABLE

-
-#define STMT_NUM_INTEGER_COLUMN 10
-typedef struct StmtRow StmtRow;
-struct StmtRow {
-  sqlite3_int64 iRowid;                /* Rowid value */
-  char *zSql;                          /* column "sql" */
-  int aCol[STMT_NUM_INTEGER_COLUMN+1]; /* all other column values */
-  StmtRow *pNext;                      /* Next row to return */
-};
-
 /* stmt_vtab is a subclass of sqlite3_vtab which will
 ** serve as the underlying representation of a stmt virtual table
 */
@@ -57,7 +47,8 @@ typedef struct stmt_cursor stmt_cursor;
 struct stmt_cursor {
  sqlite3_vtab_cursor base;  /* Base class - must be first */
  sqlite3 *db;               /* Database connection for this cursor */
-  StmtRow *pRow;             /* Current row */
+  sqlite3_stmt *pStmt;       /* Statement cursor is currently pointing at */
+  sqlite3_int64 iRowid;      /* The rowid */
 };

 /*
@@ -101,7 +92,7 @@ static int stmtConnect(
     "CREATE TABLE x(sql,ncol,ro,busy,nscan,nsort,naidx,nstep,"
                    "reprep,run,mem)");
  if( rc==SQLITE_OK ){
-    pNew = sqlite3_malloc64( sizeof(*pNew) );
+    pNew = sqlite3_malloc( sizeof(*pNew) );
    *ppVtab = (sqlite3_vtab*)pNew;
    if( pNew==0 ) return SQLITE_NOMEM;
    memset(pNew, 0, sizeof(*pNew));
@@ -123,7 +114,7 @@ static int stmtDisconnect(sqlite3_vtab *pVtab){
 */
 static int stmtOpen(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){
  stmt_cursor *pCur;
-  pCur = sqlite3_malloc64( sizeof(*pCur) );
+  pCur = sqlite3_malloc( sizeof(*pCur) );
  if( pCur==0 ) return SQLITE_NOMEM;
  memset(pCur, 0, sizeof(*pCur));
  pCur->db = ((stmt_vtab*)p)->db;
@@ -131,21 +122,10 @@ static int stmtOpen(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){
  return SQLITE_OK;
 }

-static void stmtCsrReset(stmt_cursor *pCur){
-  StmtRow *pRow = 0;
-  StmtRow *pNext = 0;
-  for(pRow=pCur->pRow; pRow; pRow=pNext){
-    pNext = pRow->pNext;
-    sqlite3_free(pRow);
-  }
-  pCur->pRow = 0;
-}
-
 /*
 ** Destructor for a stmt_cursor.
 */
 static int stmtClose(sqlite3_vtab_cursor *cur){
-  stmtCsrReset((stmt_cursor*)cur);
  sqlite3_free(cur);
  return SQLITE_OK;
 }
@@ -156,9 +136,8 @@ static int stmtClose(sqlite3_vtab_cursor *cur){
 */
 static int stmtNext(sqlite3_vtab_cursor *cur){
  stmt_cursor *pCur = (stmt_cursor*)cur;
-  StmtRow *pNext = pCur->pRow->pNext;
-  sqlite3_free(pCur->pRow);
-  pCur->pRow = pNext;
+  pCur->iRowid++;
+  pCur->pStmt = sqlite3_next_stmt(pCur->db, pCur->pStmt);
  return SQLITE_OK;
 }

@@ -172,11 +151,39 @@ static int stmtColumn(
  int i                       /* Which column to return */
 ){
  stmt_cursor *pCur = (stmt_cursor*)cur;
-  StmtRow *pRow = pCur->pRow;
-  if( i==STMT_COLUMN_SQL ){
-    sqlite3_result_text(ctx, pRow->zSql, -1, SQLITE_TRANSIENT);
-  }else{
-    sqlite3_result_int(ctx, pRow->aCol[i]);
+  switch( i ){
+    case STMT_COLUMN_SQL: {
+      sqlite3_result_text(ctx, sqlite3_sql(pCur->pStmt), -1, SQLITE_TRANSIENT);
+      break;
+    }
+    case STMT_COLUMN_NCOL: {
+      sqlite3_result_int(ctx, sqlite3_column_count(pCur->pStmt));
+      break;
+    }
+    case STMT_COLUMN_RO: {
+      sqlite3_result_int(ctx, sqlite3_stmt_readonly(pCur->pStmt));
+      break;
+    }
+    case STMT_COLUMN_BUSY: {
+      sqlite3_result_int(ctx, sqlite3_stmt_busy(pCur->pStmt));
+      break;
+    }
+    default: {
+      assert( i==STMT_COLUMN_MEM );
+      i = SQLITE_STMTSTATUS_MEMUSED + 
+            STMT_COLUMN_NSCAN - SQLITE_STMTSTATUS_FULLSCAN_STEP;
+      /* Fall thru */
+    }
+    case STMT_COLUMN_NSCAN:
+    case STMT_COLUMN_NSORT:
+    case STMT_COLUMN_NAIDX:
+    case STMT_COLUMN_NSTEP:
+    case STMT_COLUMN_REPREP:
+    case STMT_COLUMN_RUN: {
+      sqlite3_result_int(ctx, sqlite3_stmt_status(pCur->pStmt,
+                      i-STMT_COLUMN_NSCAN+SQLITE_STMTSTATUS_FULLSCAN_STEP, 0));
+      break;
+    }
  }
  return SQLITE_OK;
 }
@@ -187,7 +194,7 @@ static int stmtColumn(
 */
 static int stmtRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
  stmt_cursor *pCur = (stmt_cursor*)cur;
-  *pRowid = pCur->pRow->iRowid;
+  *pRowid = pCur->iRowid;
  return SQLITE_OK;
 }

@@ -197,7 +204,7 @@ static int stmtRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
 */
 static int stmtEof(sqlite3_vtab_cursor *cur){
  stmt_cursor *pCur = (stmt_cursor*)cur;
-  return pCur->pRow==0;
+  return pCur->pStmt==0;
 }

 /*
@@ -212,53 +219,9 @@ static int stmtFilter(
  int argc, sqlite3_value **argv
 ){
  stmt_cursor *pCur = (stmt_cursor *)pVtabCursor;
-  sqlite3_stmt *p = 0;
-  sqlite3_int64 iRowid = 1;
-  StmtRow **ppRow = 0;
-
-  stmtCsrReset(pCur);
-  ppRow = &pCur->pRow;
-  for(p=sqlite3_next_stmt(pCur->db, 0); p; p=sqlite3_next_stmt(pCur->db, p)){
-    const char *zSql = sqlite3_sql(p);
-    sqlite3_int64 nSql = zSql ? strlen(zSql)+1 : 0;
-    StmtRow *pNew = (StmtRow*)sqlite3_malloc64(sizeof(StmtRow) + nSql);
-
-    if( pNew==0 ) return SQLITE_NOMEM;
-    memset(pNew, 0, sizeof(StmtRow));
-    if( zSql ){
-      pNew->zSql = (char*)&pNew[1];
-      memcpy(pNew->zSql, zSql, nSql);
-    }
-    pNew->aCol[STMT_COLUMN_NCOL] = sqlite3_column_count(p);
-    pNew->aCol[STMT_COLUMN_RO] = sqlite3_stmt_readonly(p);
-    pNew->aCol[STMT_COLUMN_BUSY] = sqlite3_stmt_busy(p);
-    pNew->aCol[STMT_COLUMN_NSCAN] = sqlite3_stmt_status(
-        p, SQLITE_STMTSTATUS_FULLSCAN_STEP, 0
-    );
-    pNew->aCol[STMT_COLUMN_NSORT] = sqlite3_stmt_status(
-        p, SQLITE_STMTSTATUS_SORT, 0
-    );
-    pNew->aCol[STMT_COLUMN_NAIDX] = sqlite3_stmt_status(
-        p, SQLITE_STMTSTATUS_AUTOINDEX, 0
-    );
-    pNew->aCol[STMT_COLUMN_NSTEP] = sqlite3_stmt_status(
-        p, SQLITE_STMTSTATUS_VM_STEP, 0
-    );
-    pNew->aCol[STMT_COLUMN_REPREP] = sqlite3_stmt_status(
-        p, SQLITE_STMTSTATUS_REPREPARE, 0
-    );
-    pNew->aCol[STMT_COLUMN_RUN] = sqlite3_stmt_status(
-        p, SQLITE_STMTSTATUS_RUN, 0
-    );
-    pNew->aCol[STMT_COLUMN_MEM] = sqlite3_stmt_status(
-        p, SQLITE_STMTSTATUS_MEMUSED, 0
-    );
-    pNew->iRowid = iRowid++;
-    *ppRow = pNew;
-    ppRow = &pNew->pNext;
-  }
-
-  return SQLITE_OK;
+  pCur->pStmt = 0;
+  pCur->iRowid = 0;
+  return stmtNext(pVtabCursor);
 }

 /*
@@ -754,7 +754,6 @@ static int vlogCurrentTimeInt64(sqlite3_vfs *pVfs, sqlite3_int64 *p){
 */
 int sqlite3_register_vfslog(const char *zArg){
  vlog_vfs.pVfs = sqlite3_vfs_find(0);
-  if( vlog_vfs.pVfs==0 ) return SQLITE_ERROR;
  vlog_vfs.base.szOsFile = sizeof(VLogFile) + vlog_vfs.pVfs->szOsFile;
  return sqlite3_vfs_register(&vlog_vfs.base, 1);
 }
@@ -806,7 +806,6 @@ int sqlite3_vfsstat_init(
  int rc = SQLITE_OK;
  SQLITE_EXTENSION_INIT2(pApi);
  vstat_vfs.pVfs = sqlite3_vfs_find(0);
-  if( vstat_vfs.pVfs==0 ) return SQLITE_ERROR;
  vstat_vfs.base.szOsFile = sizeof(VStatFile) + vstat_vfs.pVfs->szOsFile;
  rc = sqlite3_vfs_register(&vstat_vfs.base, 1);
  if( rc==SQLITE_OK ){
@@ -57,9 +57,6 @@ typedef UINT16_TYPE u16;           /* 2-byte unsigned integer */
 #define MIN(a,b) ((a)<(b) ? (a) : (b))

 #if defined(SQLITE_COVERAGE_TEST) || defined(SQLITE_MUTATION_TEST)
-# define SQLITE_OMIT_AUXILIARY_SAFETY_CHECKS 1
-#endif
-#if defined(SQLITE_OMIT_AUXILIARY_SAFETY_CHECKS)
 # define ALWAYS(X)      (1)
 # define NEVER(X)       (0)
 #elif !defined(NDEBUG)
@@ -564,7 +561,6 @@ static u16 zipfileGetU16(const u8 *aBuf){
 ** Read and return a 32-bit little-endian unsigned integer from buffer aBuf.
 */
 static u32 zipfileGetU32(const u8 *aBuf){
-  if( aBuf==0 ) return 0;
  return ((u32)(aBuf[3]) << 24)
       + ((u32)(aBuf[2]) << 16)
       + ((u32)(aBuf[1]) <<  8)
@@ -867,7 +863,7 @@ static int zipfileGetEntry(
        aRead = (u8*)&aBlob[pNew->cds.iOffset];
      }

-      if( rc==SQLITE_OK ) rc = zipfileReadLFH(aRead, &lfh);
+      rc = zipfileReadLFH(aRead, &lfh);
      if( rc==SQLITE_OK ){
        pNew->iDataOff =  pNew->cds.iOffset + ZIPFILE_LFH_FIXED_SZ;
        pNew->iDataOff += lfh.nFile + lfh.nExtra;
@@ -1143,13 +1139,13 @@ static int zipfileReadEOCD(
  int nRead;                      /* Bytes to read from file */
  int rc = SQLITE_OK;

-  memset(pEOCD, 0, sizeof(ZipfileEOCD));
  if( aBlob==0 ){
    i64 iOff;                     /* Offset to read from */
    i64 szFile;                   /* Total size of file in bytes */
    fseek(pFile, 0, SEEK_END);
    szFile = (i64)ftell(pFile);
    if( szFile==0 ){
+      memset(pEOCD, 0, sizeof(ZipfileEOCD));
      return SQLITE_OK;
    }
    nRead = (int)(MIN(szFile, ZIPFILE_BUFFER_SIZE));
@@ -1262,14 +1258,9 @@ static int zipfileFilter(
    zipfileCursorErr(pCsr, "zipfile() function requires an argument");
    return SQLITE_ERROR;
  }else if( sqlite3_value_type(argv[0])==SQLITE_BLOB ){
-    static const u8 aEmptyBlob = 0;
    const u8 *aBlob = (const u8*)sqlite3_value_blob(argv[0]);
    int nBlob = sqlite3_value_bytes(argv[0]);
    assert( pTab->pFirstEntry==0 );
-    if( aBlob==0 ){
-      aBlob = &aEmptyBlob;
-      nBlob = 0;
-    }
    rc = zipfileLoadDirectory(pTab, aBlob, nBlob);
    pCsr->pFreeEntry = pTab->pFirstEntry;
    pTab->pFirstEntry = pTab->pLastEntry = 0;
@@ -1495,7 +1486,6 @@ static int zipfileBegin(sqlite3_vtab *pVtab){
 static u32 zipfileTime(void){
  sqlite3_vfs *pVfs = sqlite3_vfs_find(0);
  u32 ret;
-  if( pVfs==0 ) return 0;
  if( pVfs->iVersion>=2 && pVfs->xCurrentTimeInt64 ){
    i64 ms;
    pVfs->xCurrentTimeInt64(pVfs, &ms);
@@ -1943,7 +1933,7 @@ static int zipfileBufferGrow(ZipfileBuffer *pBuf, int nByte){
 **   SELECT zipfile(name,mode,mtime,data) ...
 **   SELECT zipfile(name,mode,mtime,data,method) ...
 */
-static void zipfileStep(sqlite3_context *pCtx, int nVal, sqlite3_value **apVal){
+void zipfileStep(sqlite3_context *pCtx, int nVal, sqlite3_value **apVal){
  ZipfileCtx *p;                  /* Aggregate function context */
  ZipfileEntry e;                 /* New entry to add to zip archive */

@@ -2118,7 +2108,7 @@ static void zipfileStep(sqlite3_context *pCtx, int nVal, sqlite3_value **apVal){
 /*
 ** xFinalize() callback for zipfile aggregate function.
 */
-static void zipfileFinal(sqlite3_context *pCtx){
+void zipfileFinal(sqlite3_context *pCtx){
  ZipfileCtx *p;
  ZipfileEOCD eocd;
  sqlite3_int64 nZip;
@@ -2175,10 +2165,6 @@ static int zipfileRegister(sqlite3 *db){
    zipfileRollback,           /* xRollback */
    zipfileFindFunction,       /* xFindMethod */
    0,                         /* xRename */
-    0,                         /* xSavepoint */
-    0,                         /* xRelease */
-    0,                         /* xRollback */
-    0                          /* xShadowName */
  };

  int rc = sqlite3_create_module(db, "zipfile"  , &zipfileModule, 0);
@@ -56,7 +56,7 @@ void usage(const char *zArgv0){

 void report_default_vfs(){
  sqlite3_vfs *pVfs = sqlite3_vfs_find(0);
-  fprintf(stdout, "default vfs is \"%s\"\n", pVfs ? pVfs->zName : "NULL");
+  fprintf(stdout, "default vfs is \"%s\"\n", pVfs->zName);
 }

 void report_rbu_vfs(sqlite3rbu *pRbu){
@@ -50,7 +50,7 @@ do_test 1.1 {
 #
 ifcapable fts3 {
  do_execsql_test 2.0 {
-    create virtual TABLE ft USING fts4(a, b, languageid='langid');
+    CREATE VIRTUAL TABLE ft USING fts4(a, b, languageid='langid');
  }
  do_test 2.1 {
    apply_rbu {
@@ -1,87 +0,0 @@
-# 2014 August 30
-#
-# The author disclaims copyright to this source code.  In place of
-# a legal notice, here is a blessing:
-#
-#    May you do good and not evil.
-#    May you find forgiveness for yourself and forgive others.
-#    May you share freely, never taking more than you give.
-#
-#***********************************************************************
-#
-#
-
-source [file join [file dirname [info script]] rbu_common.tcl]
-set ::testprefix rbubusy
-
-db close
-sqlite3_shutdown
-test_sqlite3_log xLog
-reset_db
-
-set db_sql {
-  CREATE TABLE t1(a PRIMARY KEY, b, c);
-  INSERT INTO t1 VALUES(1000, 2000, 3000);
-}
-
-set rbu_sql {
-  CREATE TABLE data_t1(a, b, c, rbu_control);
-  INSERT INTO data_t1 VALUES(1, 2, 3, 0);
-  INSERT INTO data_t1 VALUES(4, 5, 6, 0);
-  INSERT INTO data_t1 VALUES(7, 8, 9, 0);
-}
-
-do_test 1.1 {
-  forcedelete rbu.db
-  sqlite3 rbu rbu.db
-  rbu eval $rbu_sql
-  rbu close
-
-  db eval $db_sql
-} {}
-
-do_execsql_test 1.2 {
-  BEGIN;
-    SELECT * FROM t1
-} {1000 2000 3000}
-
-do_test 1.3 {
-  sqlite3rbu rbu test.db rbu.db
-  rbu step
-} {SQLITE_OK}
-
-do_test 1.4 {
-  while 1 {
-    set rc [rbu step]
-    if {$rc!="SQLITE_OK"} break
-  }
-  set rc
-} {SQLITE_BUSY}
-
-do_test 1.5 {
-  rbu step
-} {SQLITE_BUSY}
-
-do_test 1.6 {
-  db eval COMMIT
-  rbu step
-} {SQLITE_BUSY}
-catch { rbu close }
-
-do_test 1.7 {
-  sqlite3rbu rbu test.db rbu.db
-  while 1 {
-    set rc [rbu step]
-    if {$rc!="SQLITE_OK"} break
-  }
-  set rc
-} {SQLITE_DONE}
-
-rbu close
-
-db close
-sqlite3_shutdown
-test_sqlite3_log 
-sqlite3_initialize
-finish_test
-
@@ -1,207 +0,0 @@
-# 2021 November 06
-#
-# The author disclaims copyright to this source code.  In place of
-# a legal notice, here is a blessing:
-#
-#    May you do good and not evil.
-#    May you find forgiveness for yourself and forgive others.
-#    May you share freely, never taking more than you give.
-#
-#***********************************************************************
-#
-
-source [file join [file dirname [info script]] rbu_common.tcl]
-set ::testprefix rbuexlock
-
-db close
-sqlite3_shutdown
-sqlite3_config_uri 1
-
-# Create a simple RBU database. That expects to write to a table:
-#
-#   CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
-#
-proc create_rbu {filename} {
-  forcedelete $filename
-  sqlite3 rbu1 $filename  
-  rbu1 eval {
-    CREATE TABLE data_t1(a, b, c, rbu_control);
-    INSERT INTO data_t1 VALUES(10, random(), random(), 0);
-    INSERT INTO data_t1 VALUES(20, random(), random(), 0);
-    INSERT INTO data_t1 VALUES(30, random(), random(), 0);
-    INSERT INTO data_t1 VALUES(40, random(), random(), 0);
-    INSERT INTO data_t1 VALUES(50, random(), random(), 0);
-    INSERT INTO data_t1 VALUES(60, random(), random(), 0);
-    INSERT INTO data_t1 VALUES(70, random(), random(), 0);
-    INSERT INTO data_t1 VALUES(80, random(), random(), 0);
-  }
-  rbu1 close
-  return $filename
-}
-
-reset_db
-
-do_execsql_test 1.0 {
-  CREATE TABLE t1(a PRIMARY KEY, b INT, c INT);
-  CREATE INDEX t1b ON t1(b);
-  CREATE INDEX t1c ON t1(c);
-  INSERT INTO t1 VALUES(1, 2, 3);
-}
-create_rbu rbu1.db
-
-do_test 1.1.0 {
-  sqlite3rbu rbu file:test.db?rbu_exclusive_checkpoint=1 rbu1.db
-  rbu step
-} SQLITE_OK
-do_catchsql_test 1.1.1 { SELECT * FROM t1 } {0 {1 2 3}}
-
-do_test 1.2.0 {
-  for {set ii 0} {$ii < 10} {incr ii} {
-    rbu step
-  }
-  rbu step
-} SQLITE_OK
-do_catchsql_test 1.2.1 { SELECT * FROM t1 } {0 {1 2 3}}
-do_test 1.2.2 {
-  db eval {PRAGMA journal_mode}
-} {delete}
-
-do_test 1.3.0 {
-  while {[file exists test.db-wal]==0} {
-    rbu step
-  }
-} {}
-do_catchsql_test 1.3.1 { SELECT * FROM t1 } {1 {database is locked}}
-do_test 1.3.2 {
-  db eval {PRAGMA journal_mode}
-} {delete}
-
-
-do_test 1.4.0 {
-  rbu step
-} SQLITE_OK
-do_catchsql_test 1.4.1 { SELECT * FROM t1 } {1 {database is locked}}
-do_test 1.4.2 {
-  db eval {PRAGMA journal_mode}
-} {delete}
-
-
-rbu close
-
-do_test 1.5.0 {
-  file exists test.db-wal
-} {1}
-do_test 1.5.1 {
-  sqlite3rbu rbu file:test.db?rbu_exclusive_checkpoint=1 rbu1.db
-  file exists test.db-wal
-} 1
-do_catchsql_test 1.5.2 { SELECT * FROM t1 } {1 {database is locked}}
-do_test 1.5.2 {
-  db eval {PRAGMA journal_mode}
-} {delete}
-
-
-do_test 1.6.0 {
-  rbu step
-} SQLITE_OK
-do_catchsql_test 1.6.1 { SELECT * FROM t1 } {1 {database is locked}}
-do_test 1.6.2 {
-  db eval {PRAGMA journal_mode}
-} {delete}
-
-do_test 1.7.0 {
-  while {[rbu step]=="SQLITE_OK"} {}
-  rbu close
-} SQLITE_DONE
-do_catchsql_test 1.7.2 { SELECT count(*) FROM t1 } {0 9}
-do_test 1.7.2 {
-  db eval {PRAGMA journal_mode}
-} {delete}
-
-reset_db
-do_execsql_test 2.0 {
-  CREATE TABLE t1(a PRIMARY KEY, b INT, c INT);
-  CREATE INDEX t1b ON t1(b);
-  CREATE INDEX t1c ON t1(c);
-  INSERT INTO t1 VALUES(1, 2, 3);
-}
-create_rbu rbu1.db
-
-do_test 2.1.0 {
-  sqlite3rbu rbu file:test.db?rbu_exclusive_checkpoint=0 rbu1.db
-  rbu step
-} SQLITE_OK
-do_catchsql_test 2.1.1 { SELECT * FROM t1 } {0 {1 2 3}}
-
-do_test 2.2.0 {
-  for {set ii 0} {$ii < 10} {incr ii} {
-    rbu step
-  }
-  rbu step
-} SQLITE_OK
-do_catchsql_test 2.2.1 { SELECT * FROM t1 } {0 {1 2 3}}
-
-do_test 2.3.0 {
-  while {[file exists test.db-wal]==0} {
-    rbu step
-  }
-} {}
-do_test 2.3.1 {
-  llength [db eval {SELECT * FROM t1}]
-} {27}
-do_test 2.3.2 {
-  db eval {PRAGMA journal_mode}
-} {wal}
-
-do_test 2.4.0 {
-  rbu step
-} SQLITE_OK
-do_test 2.4.1 {
-  llength [db eval  {SELECT * FROM t1}]
-} {27}
-do_test 2.4.2 {
-  db eval {PRAGMA journal_mode}
-} {wal}
-
-rbu close
-
-do_test 2.5.0 {
-  db eval {PRAGMA journal_mode}
-} {wal}
-do_execsql_test 2.5.1 {
-  DELETE FROM t1;
-} {}
-
-create_rbu rbu1.db
-do_test 3.1.0 {
-  sqlite3rbu rbu file:test.db?rbu_exclusive_checkpoint=0 rbu1.db
-  rbu step
-} SQLITE_ERROR
-
-do_test 3.1.1 {
-  set rc [catch {rbu close} msg]
-  lappend rc $msg
-} {1 {SQLITE_ERROR - cannot update wal mode database}}
-db eval {PRAGMA journal_mode=DELETE}
-
-create_rbu rbu1.db
-do_test 3.2.0 {
-  sqlite3rbu rbu file:test.db?rbu_exclusive_checkpoint=0 rbu1.db
-  rbu step
-} SQLITE_OK
-
-do_test 3.3.1 {
-  set rc [catch {rbu close} msg]
-  lappend rc $msg
-} {0 SQLITE_OK}
-
-db close
-create_rbu rbu1.db
-do_test 3.4.0 {
-  sqlite3rbu rbu file:test.db?rbu_exclusive_checkpoint=0 rbu1.db
-  rbu step
-} SQLITE_OK
-rbu close
-
-
-finish_test
@@ -198,11 +198,7 @@ if {$::tcl_platform(platform)=="unix"} {
    } {SQLITE_OK}

    do_test 5.$tn.2 { file exists test.db-vacuum } 1
-    # The result pattern might be 00xxx or 0oxxx depending on which
-    # version of TCL is being used.  So make perm2 into a regexp that
-    # will match either
-    regsub {^00} $perm {0.} perm2
-    do_test 5.$tn.3 { file attributes test.db-vacuum -permissions} /$perm2/
+    do_test 5.$tn.3 { file attributes test.db-vacuum -permissions} $perm
    rbu close
  }
 }
@@ -110,13 +110,6 @@
 # define SWAP(TYPE,A,B) {TYPE t=A; A=B; B=t;}
 #endif

-/*
-** Name of the URI option that causes RBU to take an exclusive lock as
-** part of the incremental checkpoint operation.
-*/
-#define RBU_EXCLUSIVE_CHECKPOINT "rbu_exclusive_checkpoint"
-
-
 /*
 ** The rbu_state table is used to save the state of a partially applied
 ** update so that it can be resumed later. The table consists of integer
@@ -1201,9 +1194,7 @@ static void rbuTableType(
  assert( p->rc==SQLITE_OK );
  p->rc = prepareFreeAndCollectError(p->dbMain, &aStmt[0], &p->zErrmsg, 
    sqlite3_mprintf(
-          "SELECT "
-          " (sql COLLATE nocase BETWEEN 'CREATE VIRTUAL' AND 'CREATE VIRTUAM'),"
-          " rootpage"
+          "SELECT (sql LIKE 'create virtual%%'), rootpage"
          "  FROM sqlite_schema"
          " WHERE name=%Q", zTab
  ));
@@ -1563,7 +1554,7 @@ static char *rbuVacuumTableStart(
 ** the caller has to use an OFFSET clause to extract only the required 
 ** rows from the sourct table, just as it does for an RBU update operation.
 */
-static char *rbuVacuumIndexStart(
+char *rbuVacuumIndexStart(
  sqlite3rbu *p,                  /* RBU handle */
  RbuObjIter *pIter               /* RBU iterator object */
 ){
@@ -2736,7 +2727,7 @@ static RbuState *rbuLoadState(sqlite3rbu *p){
        break;

      case RBU_STATE_OALSZ:
-        pRet->iOalSz = sqlite3_column_int64(pStmt, 1);
+        pRet->iOalSz = (u32)sqlite3_column_int64(pStmt, 1);
        break;

      case RBU_STATE_PHASEONESTEP:
@@ -2763,19 +2754,13 @@ static RbuState *rbuLoadState(sqlite3rbu *p){
 /*
 ** Open the database handle and attach the RBU database as "rbu". If an
 ** error occurs, leave an error code and message in the RBU handle.
-**
-** If argument dbMain is not NULL, then it is a database handle already
-** open on the target database. Use this handle instead of opening a new
-** one.
 */
-static void rbuOpenDatabase(sqlite3rbu *p, sqlite3 *dbMain, int *pbRetry){
+static void rbuOpenDatabase(sqlite3rbu *p, int *pbRetry){
  assert( p->rc || (p->dbMain==0 && p->dbRbu==0) );
  assert( p->rc || rbuIsVacuum(p) || p->zTarget!=0 );
-  assert( dbMain==0 || rbuIsVacuum(p)==0 );

  /* Open the RBU database */
  p->dbRbu = rbuOpenDbhandle(p, p->zRbu, 1);
-  p->dbMain = dbMain;

  if( p->rc==SQLITE_OK && rbuIsVacuum(p) ){
    sqlite3_file_control(p->dbRbu, "main", SQLITE_FCNTL_RBUCNT, (void*)p);
@@ -3141,31 +3126,15 @@ static void rbuCheckpointFrame(sqlite3rbu *p, RbuFrame *pFrame){


 /*
-** Take an EXCLUSIVE lock on the database file. Return SQLITE_OK if
-** successful, or an SQLite error code otherwise.
+** Take an EXCLUSIVE lock on the database file.
 */
-static int rbuLockDatabase(sqlite3 *db){
-  int rc = SQLITE_OK;
-  sqlite3_file *fd = 0;
-  sqlite3_file_control(db, "main", SQLITE_FCNTL_FILE_POINTER, &fd);
-
-  if( fd->pMethods ){
-    rc = fd->pMethods->xLock(fd, SQLITE_LOCK_SHARED);
-    if( rc==SQLITE_OK ){
-      rc = fd->pMethods->xLock(fd, SQLITE_LOCK_EXCLUSIVE);
-    }
+static void rbuLockDatabase(sqlite3rbu *p){
+  sqlite3_file *pReal = p->pTargetFd->pReal;
+  assert( p->rc==SQLITE_OK );
+  p->rc = pReal->pMethods->xLock(pReal, SQLITE_LOCK_SHARED);
+  if( p->rc==SQLITE_OK ){
+    p->rc = pReal->pMethods->xLock(pReal, SQLITE_LOCK_EXCLUSIVE);
  }
-  return rc;
-}
-
-/*
-** Return true if the database handle passed as the only argument
-** was opened with the rbu_exclusive_checkpoint=1 URI parameter
-** specified. Or false otherwise.
-*/
-static int rbuExclusiveCheckpoint(sqlite3 *db){
-  const char *zUri = sqlite3_db_filename(db, 0);
-  return sqlite3_uri_boolean(zUri, RBU_EXCLUSIVE_CHECKPOINT, 0);
 }

 #if defined(_WIN32_WCE)
@@ -3223,24 +3192,18 @@ static void rbuMoveOalFile(sqlite3rbu *p){
    ** In order to ensure that there are no database readers, an EXCLUSIVE
    ** lock is obtained here before the *-oal is moved to *-wal.
    */
-    sqlite3 *dbMain = 0;
-    rbuFileSuffix3(zBase, zWal);
-    rbuFileSuffix3(zBase, zOal);
-
-    /* Re-open the databases. */
-    rbuObjIterFinalize(&p->objiter);
-    sqlite3_close(p->dbRbu);
-    sqlite3_close(p->dbMain);
-    p->dbMain = 0;
-    p->dbRbu = 0;
-
-    dbMain = rbuOpenDbhandle(p, p->zTarget, 1);
-    if( dbMain ){
-      assert( p->rc==SQLITE_OK );
-      p->rc = rbuLockDatabase(dbMain);
-    }
-
+    rbuLockDatabase(p);
    if( p->rc==SQLITE_OK ){
+      rbuFileSuffix3(zBase, zWal);
+      rbuFileSuffix3(zBase, zOal);
+
+      /* Re-open the databases. */
+      rbuObjIterFinalize(&p->objiter);
+      sqlite3_close(p->dbRbu);
+      sqlite3_close(p->dbMain);
+      p->dbMain = 0;
+      p->dbRbu = 0;
+
 #if defined(_WIN32_WCE)
      {
        LPWSTR zWideOal;
@@ -3267,19 +3230,11 @@ static void rbuMoveOalFile(sqlite3rbu *p){
 #else
      p->rc = rename(zOal, zWal) ? SQLITE_IOERR : SQLITE_OK;
 #endif
-    }

-    if( p->rc!=SQLITE_OK 
-     || rbuIsVacuum(p) 
-     || rbuExclusiveCheckpoint(dbMain)==0 
-    ){
-      sqlite3_close(dbMain);
-      dbMain = 0;
-    }
-
-    if( p->rc==SQLITE_OK ){
-      rbuOpenDatabase(p, dbMain, 0);
-      rbuSetupCheckpoint(p, 0);
+      if( p->rc==SQLITE_OK ){
+        rbuOpenDatabase(p, 0);
+        rbuSetupCheckpoint(p, 0);
+      }
    }
  }

@@ -4030,9 +3985,9 @@ static sqlite3rbu *openRbuHandle(
      ** If this is the case, it will have been checkpointed and deleted
      ** when the handle was closed and a second attempt to open the 
      ** database may succeed.  */
-      rbuOpenDatabase(p, 0, &bRetry);
+      rbuOpenDatabase(p, &bRetry);
      if( bRetry ){
-        rbuOpenDatabase(p, 0, 0);
+        rbuOpenDatabase(p, 0);
      }
    }

@@ -4127,14 +4082,6 @@ static sqlite3rbu *openRbuHandle(
      }else if( p->eStage==RBU_STAGE_MOVE ){
        /* no-op */
      }else if( p->eStage==RBU_STAGE_CKPT ){
-        if( !rbuIsVacuum(p) && rbuExclusiveCheckpoint(p->dbMain) ){
-          /* If the rbu_exclusive_checkpoint=1 URI parameter was specified
-          ** and an incremental checkpoint is being resumed, attempt an
-          ** exclusive lock on the db file. If this fails, so be it.  */
-          p->eStage = RBU_STAGE_DONE;
-          rbuLockDatabase(p->dbMain);
-          p->eStage = RBU_STAGE_CKPT;
-        }
        rbuSetupCheckpoint(p, pState);
      }else if( p->eStage==RBU_STAGE_DONE ){
        p->rc = SQLITE_DONE;
@@ -4172,6 +4119,7 @@ sqlite3rbu *sqlite3rbu_open(
  const char *zState
 ){
  if( zTarget==0 || zRbu==0 ){ return rbuMisuseError(); }
+  /* TODO: Check that zTarget and zRbu are non-NULL */
  return openRbuHandle(zTarget, zRbu, zState);
 }

@@ -44,19 +44,8 @@ SQLITE_EXTENSION_INIT1
 # include <stdio.h>
 # include <stdlib.h>
 # include <assert.h>
-# if defined(SQLITE_COVERAGE_TEST) || defined(SQLITE_MUTATION_TEST)
-#   define SQLITE_OMIT_AUXILIARY_SAFETY_CHECKS 1
-# endif
-# if defined(SQLITE_OMIT_AUXILIARY_SAFETY_CHECKS)
-#   define ALWAYS(X)      (1)
-#   define NEVER(X)       (0)
-# elif !defined(NDEBUG)
-#   define ALWAYS(X)      ((X)?1:(assert(0),0))
-#   define NEVER(X)       ((X)?(assert(0),1):0)
-# else
-#   define ALWAYS(X)      (X)
-#   define NEVER(X)       (X)
-# endif
+# define ALWAYS(X)  1
+# define NEVER(X)   0
  typedef unsigned char u8;
  typedef unsigned short u16;
  typedef unsigned int u32;
@@ -4,6 +4,7 @@
 */
 #define TCLSH_INIT_PROC sqlite3_checker_init_proc
 #define SQLITE_ENABLE_DBPAGE_VTAB 1
+#define SQLITE_ENABLE_JSON1 1
 #undef SQLITE_THREADSAFE
 #define SQLITE_THREADSAFE 0
 #undef SQLITE_ENABLE_COLUMN_METADATA
@@ -26,7 +26,11 @@
 # define GEODEBUG(X)
 #endif

-/* Character class routines */
+#ifndef JSON_NULL   /* The following stuff repeats things found in json1 */
+/*
+** Versions of isspace(), isalnum() and isdigit() to which it is safe
+** to pass signed char values.
+*/
 #ifdef sqlite3Isdigit
   /* Use the SQLite core versions if this routine is part of the
   ** SQLite amalgamation */
@@ -41,7 +45,6 @@
 #  define safe_isxdigit(x) isxdigit((unsigned char)(x))
 #endif

-#ifndef JSON_NULL   /* The following stuff repeats things found in json1 */
 /*
 ** Growing our own isspace() routine this way is twice as fast as
 ** the library isspace() function.
@@ -64,7 +67,7 @@ static const char geopolyIsSpace[] = {
  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
 };
-#define fast_isspace(x) (geopolyIsSpace[(unsigned char)x])
+#define safe_isspace(x) (geopolyIsSpace[(unsigned char)x])
 #endif /* JSON NULL - back to original code */

 /* Compiler and version */
@@ -153,7 +156,7 @@ static void geopolySwab32(unsigned char *a){

 /* Skip whitespace.  Return the next non-whitespace character. */
 static char geopolySkipSpace(GeoParse *p){
-  while( fast_isspace(p->z[0]) ) p->z++;
+  while( safe_isspace(p->z[0]) ) p->z++;
  return p->z[0];
 }

@@ -302,14 +305,13 @@ static GeoPoly *geopolyFuncParam(
 ){
  GeoPoly *p = 0;
  int nByte;
-  testcase( pCtx==0 );
  if( sqlite3_value_type(pVal)==SQLITE_BLOB
   && (nByte = sqlite3_value_bytes(pVal))>=(4+6*sizeof(GeoCoord))
  ){
    const unsigned char *a = sqlite3_value_blob(pVal);
    int nVertex;
    if( a==0 ){
-      if( pCtx ) sqlite3_result_error_nomem(pCtx);
+      sqlite3_result_error_nomem(pCtx);
      return 0;
    }
    nVertex = (a[1]<<16) + (a[2]<<8) + a[3];
@@ -1136,11 +1138,11 @@ static int geopolyOverlap(GeoPoly *p1, GeoPoly *p2){
    }else{
      /* Remove a segment */
      if( pActive==pThisEvent->pSeg ){
-        pActive = ALWAYS(pActive) ? pActive->pNext : 0;
+        pActive = pActive->pNext;
      }else{
        for(pSeg=pActive; pSeg; pSeg=pSeg->pNext){
          if( pSeg->pNext==pThisEvent->pSeg ){
-            pSeg->pNext = ALWAYS(pSeg->pNext) ? pSeg->pNext->pNext : 0;
+            pSeg->pNext = pSeg->pNext->pNext;
            break;
          }
        }
@@ -1384,7 +1386,6 @@ static int geopolyFilter(
      RtreeCoord bbox[4];
      RtreeConstraint *p;
      assert( argc==1 );
-      assert( argv[0]!=0 );
      geopolyBBox(0, argv[0], bbox, &rc);
      if( rc ){
        goto geopoly_filter_end;
@@ -1612,7 +1613,6 @@ static int geopolyUpdate(
        || !sqlite3_value_nochange(aData[2])  /* UPDATE _shape */
        || oldRowid!=newRowid)                /* Rowid change */
  ){
-    assert( aData[2]!=0 );
    geopolyBBox(0, aData[2], cell.aCoord, &rc);
    if( rc ){
      if( rc==SQLITE_ERROR ){
@@ -1695,7 +1695,7 @@ static int geopolyUpdate(
      sqlite3_free(p);
      nChange = 1;
    }
-    for(jj=1; jj<nData-2; jj++){
+    for(jj=1; jj<pRtree->nAux; jj++){
      nChange++;
      sqlite3_bind_value(pUp, jj+2, aData[jj+2]);
    }
@@ -64,11 +64,7 @@
 #endif
 int sqlite3GetToken(const unsigned char*,int*); /* In the SQLite core */

-/*
-** If building separately, we will need some setup that is normally
-** found in sqliteInt.h
-*/
-#if !defined(SQLITE_AMALGAMATION)
+#ifndef SQLITE_AMALGAMATION
 #include "sqlite3rtree.h"
 typedef sqlite3_int64 i64;
 typedef sqlite3_uint64 u64;
@@ -81,20 +77,7 @@ typedef unsigned int u32;
 #if defined(NDEBUG) && defined(SQLITE_DEBUG)
 # undef NDEBUG
 #endif
-#if defined(SQLITE_COVERAGE_TEST) || defined(SQLITE_MUTATION_TEST)
-# define SQLITE_OMIT_AUXILIARY_SAFETY_CHECKS 1
 #endif
-#if defined(SQLITE_OMIT_AUXILIARY_SAFETY_CHECKS)
-# define ALWAYS(X)      (1)
-# define NEVER(X)       (0)
-#elif !defined(NDEBUG)
-# define ALWAYS(X)      ((X)?1:(assert(0),0))
-# define NEVER(X)       ((X)?(assert(0),1):0)
-#else
-# define ALWAYS(X)      (X)
-# define NEVER(X)       (X)
-#endif
-#endif /* !defined(SQLITE_AMALGAMATION) */

 #include <string.h>
 #include <stdio.h>
@@ -152,9 +135,7 @@ struct Rtree {
  u8 nBytesPerCell;           /* Bytes consumed per cell */
  u8 inWrTrans;               /* True if inside write transaction */
  u8 nAux;                    /* # of auxiliary columns in %_rowid */
-#ifdef SQLITE_ENABLE_GEOPOLY
  u8 nAuxNotNull;             /* Number of initial not-null aux columns */
-#endif
 #ifdef SQLITE_DEBUG
  u8 bCorrupt;                /* Shadow table corruption detected */
 #endif
@@ -436,12 +417,7 @@ struct RtreeMatchArg {
 ** it is not, make it a no-op.
 */
 #ifndef SQLITE_AMALGAMATION
-# if defined(SQLITE_COVERAGE_TEST) || defined(SQLITE_DEBUG)
-    unsigned int sqlite3RtreeTestcase = 0;
-#   define testcase(X)  if( X ){ sqlite3RtreeTestcase += __LINE__; }
-# else
-#   define testcase(X)
-# endif
+# define testcase(X)
 #endif

 /*
@@ -690,6 +666,18 @@ static void nodeBlobReset(Rtree *pRtree){
  }
 }

+/*
+** Check to see if pNode is the same as pParent or any of the parents
+** of pParent.
+*/
+static int nodeInParentChain(const RtreeNode *pNode, const RtreeNode *pParent){
+  do{
+    if( pNode==pParent ) return 1;
+    pParent = pParent->pParent;
+  }while( pParent );
+  return 0;
+}
+
 /*
 ** Obtain a reference to an r-tree node.
 */
@@ -706,7 +694,14 @@ static int nodeAcquire(
  ** increase its reference count and return it.
  */
  if( (pNode = nodeHashLookup(pRtree, iNode))!=0 ){
-    if( pParent && pParent!=pNode->pParent ){
+    if( pParent && !pNode->pParent ){
+      if( nodeInParentChain(pNode, pParent) ){
+        RTREE_IS_CORRUPT(pRtree);
+        return SQLITE_CORRUPT_VTAB;
+      }
+      pParent->nRef++;
+      pNode->pParent = pParent;
+    }else if( pParent && pNode->pParent && pParent!=pNode->pParent ){
      RTREE_IS_CORRUPT(pRtree);
      return SQLITE_CORRUPT_VTAB;
    }
@@ -764,7 +759,7 @@ static int nodeAcquire(
  ** are the leaves, and so on. If the depth as specified on the root node
  ** is greater than RTREE_MAX_DEPTH, the r-tree structure must be corrupt.
  */
-  if( rc==SQLITE_OK && pNode && iNode==1 ){
+  if( pNode && rc==SQLITE_OK && iNode==1 ){
    pRtree->iDepth = readInt16(pNode->zData);
    if( pRtree->iDepth>RTREE_MAX_DEPTH ){
      rc = SQLITE_CORRUPT_VTAB;
@@ -1287,29 +1282,20 @@ static void rtreeNonleafConstraint(
  switch( p->op ){
    case RTREE_TRUE:  return;   /* Always satisfied */
    case RTREE_FALSE: break;    /* Never satisfied */
+    case RTREE_LE:
+    case RTREE_LT:
    case RTREE_EQ:
-      RTREE_DECODE_COORD(eInt, pCellData, val);
-      /* val now holds the lower bound of the coordinate pair */
-      if( p->u.rValue>=val ){
-        pCellData += 4;
-        RTREE_DECODE_COORD(eInt, pCellData, val);
-        /* val now holds the upper bound of the coordinate pair */
-        if( p->u.rValue<=val ) return;
-      }
-      break;
-    case RTREE_LE:
-    case RTREE_LT:
      RTREE_DECODE_COORD(eInt, pCellData, val);
      /* val now holds the lower bound of the coordinate pair */
      if( p->u.rValue>=val ) return;
-      break;
+      if( p->op!=RTREE_EQ ) break;  /* RTREE_LE and RTREE_LT end here */
+      /* Fall through for the RTREE_EQ case */

-    default:
+    default: /* RTREE_GT or RTREE_GE,  or fallthrough of RTREE_EQ */
      pCellData += 4;
      RTREE_DECODE_COORD(eInt, pCellData, val);
      /* val now holds the upper bound of the coordinate pair */
      if( p->u.rValue<=val ) return;
-      break;
  }
  *peWithin = NOT_WITHIN;
 }
@@ -1379,12 +1365,11 @@ static int nodeRowidIndex(
 */
 static int nodeParentIndex(Rtree *pRtree, RtreeNode *pNode, int *piIndex){
  RtreeNode *pParent = pNode->pParent;
-  if( ALWAYS(pParent) ){
+  if( pParent ){
    return nodeRowidIndex(pRtree, pParent, pNode->iNode, piIndex);
-  }else{
-    *piIndex = -1;
-    return SQLITE_OK;
  }
+  *piIndex = -1;
+  return SQLITE_OK;
 }

 /*
@@ -1507,8 +1492,7 @@ static RtreeSearchPoint *rtreeSearchPointNew(
      pNew = rtreeEnqueue(pCur, rScore, iLevel);
      if( pNew==0 ) return 0;
      ii = (int)(pNew - pCur->aPoint) + 1;
-      assert( ii==1 );
-      if( ALWAYS(ii<RTREE_CACHE_SZ) ){
+      if( ii<RTREE_CACHE_SZ ){
        assert( pCur->aNode[ii]==0 );
        pCur->aNode[ii] = pCur->aNode[0];
      }else{
@@ -1569,7 +1553,7 @@ static void rtreeSearchPointPop(RtreeCursor *p){
  if( p->bPoint ){
    p->anQueue[p->sPoint.iLevel]--;
    p->bPoint = 0;
-  }else if( ALWAYS(p->nPoint) ){
+  }else if( p->nPoint ){
    p->anQueue[p->aPoint[0].iLevel]--;
    n = --p->nPoint;
    p->aPoint[0] = p->aPoint[n];
@@ -1710,7 +1694,7 @@ static int rtreeRowid(sqlite3_vtab_cursor *pVtabCursor, sqlite_int64 *pRowid){
  RtreeSearchPoint *p = rtreeSearchPointFirst(pCsr);
  int rc = SQLITE_OK;
  RtreeNode *pNode = rtreeNodeOfFirstSearchPoint(pCsr, &rc);
-  if( rc==SQLITE_OK && ALWAYS(p) ){
+  if( rc==SQLITE_OK && p ){
    *pRowid = nodeGetRowid(RTREE_OF_CURSOR(pCsr), pNode, p->iCell);
  }
  return rc;
@@ -1728,7 +1712,7 @@ static int rtreeColumn(sqlite3_vtab_cursor *cur, sqlite3_context *ctx, int i){
  RtreeNode *pNode = rtreeNodeOfFirstSearchPoint(pCsr, &rc);

  if( rc ) return rc;
-  if( NEVER(p==0) ) return SQLITE_OK;
+  if( p==0 ) return SQLITE_OK;
  if( i==0 ){
    sqlite3_result_int64(ctx, nodeGetRowid(pRtree, pNode, p->iCell));
  }else if( i<=pRtree->nDim2 ){
@@ -1927,11 +1911,8 @@ static int rtreeFilter(
    }
    if( rc==SQLITE_OK ){
      RtreeSearchPoint *pNew;
-      assert( pCsr->bPoint==0 );  /* Due to the resetCursor() call above */
      pNew = rtreeSearchPointNew(pCsr, RTREE_ZERO, (u8)(pRtree->iDepth+1));
-      if( NEVER(pNew==0) ){       /* Because pCsr->bPoint was FALSE */
-        return SQLITE_NOMEM;
-      }
+      if( pNew==0 ) return SQLITE_NOMEM;
      pNew->id = 1;
      pNew->iCell = 0;
      pNew->eWithin = PARTLY_WITHIN;
@@ -2008,7 +1989,7 @@ static int rtreeBestIndex(sqlite3_vtab *tab, sqlite3_index_info *pIdxInfo){
    struct sqlite3_index_constraint *p = &pIdxInfo->aConstraint[ii];

    if( bMatch==0 && p->usable 
-     && p->iColumn<=0 && p->op==SQLITE_INDEX_CONSTRAINT_EQ 
+     && p->iColumn==0 && p->op==SQLITE_INDEX_CONSTRAINT_EQ 
    ){
      /* We have an equality constraint on the rowid. Use strategy 1. */
      int jj;
@@ -2214,7 +2195,7 @@ static int ChooseLeaf(

    int nCell = NCELL(pNode);
    RtreeCell cell;
-    RtreeNode *pChild = 0;
+    RtreeNode *pChild;

    RtreeCell *aCell = 0;

@@ -2261,19 +2242,12 @@ static int AdjustTree(
 ){
  RtreeNode *p = pNode;
  int cnt = 0;
-  int rc;
  while( p->pParent ){
    RtreeNode *pParent = p->pParent;
    RtreeCell cell;
    int iCell;

-    cnt++;
-    if( NEVER(cnt>100) ){
-      RTREE_IS_CORRUPT(pRtree);
-      return SQLITE_CORRUPT_VTAB;
-    }
-    rc = nodeParentIndex(pRtree, p, &iCell);
-    if( NEVER(rc!=SQLITE_OK) ){
+    if( (++cnt)>1000 || nodeParentIndex(pRtree, p, &iCell)  ){
      RTREE_IS_CORRUPT(pRtree);
      return SQLITE_CORRUPT_VTAB;
    }
@@ -2562,17 +2536,12 @@ static int updateMapping(
  xSetMapping = ((iHeight==0)?rowidWrite:parentWrite);
  if( iHeight>0 ){
    RtreeNode *pChild = nodeHashLookup(pRtree, iRowid);
-    RtreeNode *p;
-    for(p=pNode; p; p=p->pParent){
-      if( p==pChild ) return SQLITE_CORRUPT_VTAB;
-    }
    if( pChild ){
      nodeRelease(pRtree, pChild->pParent);
      nodeReference(pNode);
      pChild->pParent = pNode;
    }
  }
-  if( NEVER(pNode==0) ) return SQLITE_ERROR;
  return xSetMapping(pRtree, iRowid, pNode->iNode);
 }

@@ -2662,12 +2631,11 @@ static int SplitNode(
    RtreeNode *pParent = pLeft->pParent;
    int iCell;
    rc = nodeParentIndex(pRtree, pLeft, &iCell);
-    if( ALWAYS(rc==SQLITE_OK) ){
+    if( rc==SQLITE_OK ){
      nodeOverwriteCell(pRtree, pParent, &leftbbox, iCell);
      rc = AdjustTree(pRtree, pParent, &leftbbox);
-      assert( rc==SQLITE_OK );
    }
-    if( NEVER(rc!=SQLITE_OK) ){
+    if( rc!=SQLITE_OK ){
      goto splitnode_out;
    }
  }
@@ -2742,7 +2710,7 @@ static int fixLeafParent(Rtree *pRtree, RtreeNode *pLeaf){
      */
      iNode = sqlite3_column_int64(pRtree->pReadParent, 0);
      for(pTest=pLeaf; pTest && pTest->iNode!=iNode; pTest=pTest->pParent);
-      if( pTest==0 ){
+      if( !pTest ){
        rc2 = nodeAcquire(pRtree, iNode, 0, &pChild->pParent);
      }
    }
@@ -2773,7 +2741,6 @@ static int removeNode(Rtree *pRtree, RtreeNode *pNode, int iHeight){
    pParent = pNode->pParent;
    pNode->pParent = 0;
    rc = deleteCell(pRtree, pParent, iCell, iHeight+1);
-    testcase( rc!=SQLITE_OK );
  }
  rc2 = nodeRelease(pRtree, pParent);
  if( rc==SQLITE_OK ){
@@ -2996,7 +2963,7 @@ static int rtreeInsertCell(
    }
  }else{
    rc = AdjustTree(pRtree, pNode, pCell);
-    if( ALWAYS(rc==SQLITE_OK) ){
+    if( rc==SQLITE_OK ){
      if( iHeight==0 ){
        rc = rowidWrite(pRtree, pCell->iRowid, pNode->iNode);
      }else{
@@ -3102,7 +3069,7 @@ static int rtreeDeleteRowid(Rtree *pRtree, sqlite3_int64 iDelete){
    int rc2;
    RtreeNode *pChild = 0;
    i64 iChild = nodeGetRowid(pRtree, pRoot, 0);
-    rc = nodeAcquire(pRtree, iChild, pRoot, &pChild);  /* tag-20210916a */
+    rc = nodeAcquire(pRtree, iChild, pRoot, &pChild);
    if( rc==SQLITE_OK ){
      rc = removeNode(pRtree, pChild, pRtree->iDepth-1);
    }
@@ -3437,7 +3404,7 @@ static int rtreeQueryStat1(sqlite3 *db, Rtree *pRtree){
  char *zSql;
  sqlite3_stmt *p;
  int rc;
-  i64 nRow = RTREE_MIN_ROWEST;
+  i64 nRow = 0;

  rc = sqlite3_table_column_metadata(
      db, pRtree->zDb, "sqlite_stat1",0,0,0,0,0,0
@@ -3454,10 +3421,20 @@ static int rtreeQueryStat1(sqlite3 *db, Rtree *pRtree){
    if( rc==SQLITE_OK ){
      if( sqlite3_step(p)==SQLITE_ROW ) nRow = sqlite3_column_int64(p, 0);
      rc = sqlite3_finalize(p);
+    }else if( rc!=SQLITE_NOMEM ){
+      rc = SQLITE_OK;
+    }
+
+    if( rc==SQLITE_OK ){
+      if( nRow==0 ){
+        pRtree->nRowEst = RTREE_DEFAULT_ROWEST;
+      }else{
+        pRtree->nRowEst = MAX(nRow, RTREE_MIN_ROWEST);
+      }
    }
    sqlite3_free(zSql);
  }
-  pRtree->nRowEst = MAX(nRow, RTREE_MIN_ROWEST);
+
  return rc;
 }

@@ -3607,12 +3584,9 @@ static int rtreeSqlInit(
      sqlite3_str_appendf(p, "UPDATE \"%w\".\"%w_rowid\"SET ", zDb, zPrefix);
      for(ii=0; ii<pRtree->nAux; ii++){
        if( ii ) sqlite3_str_append(p, ",", 1);
-#ifdef SQLITE_ENABLE_GEOPOLY
        if( ii<pRtree->nAuxNotNull ){
          sqlite3_str_appendf(p,"a%d=coalesce(?%d,a%d)",ii,ii+2,ii);
-        }else
-#endif
-        {
+        }else{
          sqlite3_str_appendf(p,"a%d=?%d",ii,ii+2);
        }
      }
@@ -3877,7 +3851,6 @@ static void rtreenode(sqlite3_context *ctx, int nArg, sqlite3_value **apArg){
  tree.nDim2 = tree.nDim*2;
  tree.nBytesPerCell = 8 + 8 * tree.nDim;
  node.zData = (u8 *)sqlite3_value_blob(apArg[1]);
-  if( node.zData==0 ) return;
  nData = sqlite3_value_bytes(apArg[1]);
  if( nData<4 ) return;
  if( nData<NCELL(&node)*tree.nBytesPerCell ) return;
@@ -4292,10 +4265,8 @@ static int rtreeCheckTable(
    if( pStmt ){
      nAux = sqlite3_column_count(pStmt) - 2;
      sqlite3_finalize(pStmt);
-    }else 
-    if( check.rc!=SQLITE_NOMEM ){
-      check.rc = SQLITE_OK;
    }
+    check.rc = SQLITE_OK;
  }

  /* Find number of dimensions in the rtree table. */
@@ -4552,10 +4523,7 @@ int sqlite3_rtree_query_callback(

  /* Allocate and populate the context object. */
  pGeomCtx = (RtreeGeomCallback *)sqlite3_malloc(sizeof(RtreeGeomCallback));
-  if( !pGeomCtx ){
-    if( xDestructor ) xDestructor(pContext);
-    return SQLITE_NOMEM;
-  }
+  if( !pGeomCtx ) return SQLITE_NOMEM;
  pGeomCtx->xGeom = 0;
  pGeomCtx->xQueryFunc = xQueryFunc;
  pGeomCtx->xDestructor = xDestructor;
@@ -57,12 +57,9 @@ ifcapable !rtree {
 do_test rtree-1.1.1 {
  execsql { CREATE VIRTUAL TABLE t1 USING rtree(ii, x1, x2, y1, y2) }
 } {}
-do_test rtree-1.1.2a {
+do_test rtree-1.1.2 {
  execsql { SELECT name FROM sqlite_master ORDER BY name }
 } {t1 t1_node t1_parent t1_rowid}
-do_execsql_test rtree-1.1.2b {
-  SELECT name FROM pragma_table_list WHERE type='shadow' ORDER BY name;
-} {t1_node t1_parent t1_rowid}
 do_test rtree-1.1.3 {
  execsql { 
    DROP TABLE t1; 
@@ -733,27 +730,4 @@ do_execsql_test 19.1 {
  SELECT v0.x FROM v0, rt0 WHERE v0.x = rt0.b;
 } {0.0}

-# 2022-06-20 https://sqlite.org/forum/forumpost/57bdf2217d
-#
-reset_db
-do_execsql_test 20.0 {
-  CREATE VIRTUAL TABLE rt0 USING rtree(id, x0, x1);
-  CREATE TABLE t0(a INT);
-  CREATE TABLE t1(b INT);
-  INSERT INTO rt0 VALUES(0, 0, 0);
-}
-do_catchsql_test 20.1 {
-  SELECT * FROM t1 JOIN t0 ON x0>a RIGHT JOIN rt0 ON true WHERE +x0 = 0;
-} {1 {ON clause references tables to its right}}
-do_catchsql_test 20.2 {
-  SELECT * FROM t1 JOIN t0 ON x0>a RIGHT JOIN rt0 ON true WHERE x0 = 0;
-} {1 {ON clause references tables to its right}}
-db null -
-do_execsql_test 20.3 {
-  SELECT * FROM t1 JOIN t0 ON true RIGHT JOIN rt0 ON x0>a WHERE +x0 = 0;
-} {- - 0 0.0 0.0}
-do_execsql_test 20.4 {
-  SELECT * FROM t1 JOIN t0 ON true RIGHT JOIN rt0 ON x0>a WHERE x0 = 0;
-} {- - 0 0.0 0.0}
-
 finish_test
@@ -23,10 +23,6 @@ ifcapable !rtree {
  return
 }

-set ::TMPDBERROR [list 1 \
-  {unable to open a temporary database file for storing temporary tables}
-]
-
 # Test summary:
 #
 #   rtree3-1: Test OOM in simple CREATE TABLE, INSERT, DELETE and SELECT 
@@ -200,9 +196,9 @@ do_test rtree3-7.prep {
 do_faultsim_test rtree3-7 -faults oom-* -prep {
  faultsim_restore_and_reopen
 } -body {
-  execsql { ALTER TABLE rt RENAME TO rt2 } 
+  execsql { ALTER TABLE rt RENAME TO rt2 }
 } -test {
-  faultsim_test_result {0 {}} $::TMPDBERROR
+  faultsim_test_result {0 {}}
 }

 do_faultsim_test rtree3-8 -faults oom-* -prep {
@@ -36,7 +36,7 @@ do_execsql_test rtree9-1.4 {
  DELETE FROM rt;
 } {}

-unset -nocomplain x
+
 for {set i 0} {$i < 1000} {incr i} {
  set x [expr $i%10]
  set y [expr ($i/10)%10]
@@ -145,7 +145,7 @@ populate_t1
 do_test rtreeA-2.2.0 { truncate_node 1 200 } {}
 do_corruption_tests rtreeA-2.2 {
  1   "SELECT * FROM t1"
-  2   "SELECT * FROM t1 WHERE +rowid=5"
+  2   "SELECT * FROM t1 WHERE rowid=5"
  3   "INSERT INTO t1 VALUES(1000, 1, 2, 3, 4)"
  4   "SELECT * FROM t1 WHERE x1<10 AND x2>12"
 }
@@ -160,18 +160,18 @@ do_test rtreeA-3.1.0.1 { set_tree_depth t1 } {1}
 do_test rtreeA-3.1.0.2 { set_tree_depth t1 3 } {3}
 do_corruption_tests rtreeA-3.1 {
  1   "SELECT * FROM t1"
-  2   "SELECT * FROM t1 WHERE +rowid=5"
+  2   "SELECT * FROM t1 WHERE rowid=5"
  3   "INSERT INTO t1 VALUES(1000, 1, 2, 3, 4)"
 }

 do_execsql_test rtreeA-3.1.0.3 {
-  SELECT rtreecheck('main', 't1')!='ok'
+  SELECT rtreecheck('main', 't1')!="ok"
 } {1}

 do_test rtreeA-3.2.0 { set_tree_depth t1 1000 } {1000}
 do_corruption_tests rtreeA-3.2 {
  1   "SELECT * FROM t1"
-  2   "SELECT * FROM t1 WHERE +rowid=5"
+  2   "SELECT * FROM t1 WHERE rowid=5"
  3   "INSERT INTO t1 VALUES(1000, 1, 2, 3, 4)"
 }

@@ -183,7 +183,7 @@ do_test rtreeA-3.3.0 {
 } {65535}
 do_corruption_tests rtreeA-3.3 {
  1   "SELECT * FROM t1"
-  2   "SELECT * FROM t1 WHERE +rowid=5"
+  2   "SELECT * FROM t1 WHERE rowid=5"
  3   "INSERT INTO t1 VALUES(1000, 1, 2, 3, 4)"
 }

@@ -203,7 +203,7 @@ do_test rtreeA-4.1.0 {
 } {4000}
 do_corruption_tests rtreeA-4.1 {
  1   "SELECT * FROM t1"
-  2   "SELECT * FROM t1 WHERE +rowid=5"
+  2   "SELECT * FROM t1 WHERE rowid=5"
  3   "INSERT INTO t1 VALUES(1000, 1, 2, 3, 4)"
  4   "SELECT * FROM t1 WHERE x1<10 AND x2>12"
 }
@@ -216,12 +216,12 @@ create_t1
 populate_t1
 do_execsql_test rtreeA-5.1.0 { DELETE FROM t1_parent } {}
 do_corruption_tests rtreeA-5.1 {
-  1   "DELETE FROM t1 WHERE +rowid = 5"
+  1   "DELETE FROM t1 WHERE rowid = 5"
  2   "DELETE FROM t1"
 }

 do_execsql_test rtreeA-5.2 {
-  SELECT rtreecheck('main', 't1')!='ok'
+  SELECT rtreecheck('main', 't1')!="ok"
 } {1}

 #-------------------------------------------------------------------------
@@ -238,7 +238,7 @@ do_corruption_tests rtreeA-6.1 {
 }

 do_execsql_test rtreeA-6.2 {
-  SELECT rtreecheck('main', 't1')!='ok'
+  SELECT rtreecheck('main', 't1')!="ok"
 } {1}

 #-------------------------------------------------------------------------
@@ -342,7 +342,7 @@ do_eqp_execsql_test 7.2 {
  QUERY PLAN
  |--SCAN xdir
  |--SCAN rt VIRTUAL TABLE INDEX 2:B0D1
-  `--SCAN ydir LEFT-JOIN
+  `--SCAN ydir
 } {
  5 1 2 7 12 14 {}
  5 2 2 7  8 12 10
@@ -117,13 +117,13 @@ sqlite3_db_config db DEFENSIVE 0
 do_execsql_test 3.2 {
  BEGIN;
    UPDATE r2_node SET data = X'123456';
-    SELECT rtreecheck('r2')!='ok';
+    SELECT rtreecheck('r2')!="ok";
 } {1}

 do_execsql_test 3.3 {
  ROLLBACK;
  UPDATE r2_node SET data = X'00001234';
-  SELECT rtreecheck('r2')!='ok';
+  SELECT rtreecheck('r2')!="ok";
 } {1}

 do_execsql_test 4.0 {
@@ -1,346 +0,0 @@
-# 2021 September 13
-#
-# The author disclaims copyright to this source code.  In place of
-# a legal notice, here is a blessing:
-#
-#    May you do good and not evil.
-#    May you find forgiveness for yourself and forgive others.
-#    May you share freely, never taking more than you give.
-#
-#***********************************************************************
-#
-# The focus of this file is testing the r-tree extension.
-#
-
-if {![info exists testdir]} {
-  set testdir [file join [file dirname [info script]] .. .. test]
-}
-source [file join [file dirname [info script]] rtree_util.tcl]
-source $testdir/tester.tcl
-set testprefix rtreedoc2
-
-ifcapable !rtree {
-  finish_test
-  return
-}
-
-#-------------------------------------------------------------------------
-#-------------------------------------------------------------------------
-# Section 6 of documentation.
-#-------------------------------------------------------------------------
-#-------------------------------------------------------------------------
-set testprefix rtreedoc2-1
-
-# EVIDENCE-OF: R-35254-48865 A call to one of the above APIs creates a
-# new SQL function named by the second parameter (zQueryFunc or zGeom).
-#
-# [register_circle_geom db] registers new geometry callback "Qcircle"
-# and legacy implementation "circle". Test that these do actually appear.
-#
-do_execsql_test 1.1.0 {
-  SELECT * FROM pragma_function_list WHERE name IN('circle', 'qcircle');
-} {
-}
-do_test 1.1 {
-  register_circle_geom db
-} {SQLITE_OK}
-do_execsql_test 1.1.2 {
-  SELECT * FROM pragma_function_list WHERE name = 'circle' AND enc='utf8';
-} {
-  circle 0 s utf8 -1 0
-}
-do_execsql_test 1.1.3 {
-  SELECT * FROM pragma_function_list WHERE name = 'qcircle' AND enc='utf8';
-} {
-  qcircle 0 s utf8 -1 0
-} 
-
-do_execsql_test 1.2.0 { SELECT circle(1, 2, 3); } {{}}
-do_execsql_test 1.2.1 { SELECT qcircle(1, 2, 3); } {{}}
-
-# EVIDENCE-OF: R-61427-46983
-do_execsql_test 1.3.0 {
-  CREATE VIRTUAL TABLE demo_index USING rtree(id, x1,x2, y1,y2);
-  INSERT INTO demo_index VALUES(10, 45,45,  24,24);
-  INSERT INTO demo_index VALUES(20, 50,50,  28,28);
-  INSERT INTO demo_index VALUES(30, 43,43,  22,22);
-}
-do_execsql_test 1.3.1 {
-  SELECT id FROM demo_index WHERE id MATCH circle(45.3, 22.9, 5.0)
-} {10 30}
-
-# EVIDENCE-OF: R-16907-50223 The SQL syntax for custom queries is the
-# same regardless of which interface, sqlite3_rtree_geometry_callback()
-# or sqlite3_rtree_query_callback(), is used to register the SQL
-# function.
-do_execsql_test 1.3.2 {
-  SELECT id FROM demo_index WHERE id MATCH qcircle(45.3, 22.9, 5.0, 1)
-} {10 30}
-
-
-# EVIDENCE-OF: R-59634-51678 When that SQL function appears on the
-# right-hand side of the MATCH operator and the left-hand side of the
-# MATCH operator is any column in the R*Tree virtual table, then the
-# callback defined by the third argument (xQueryFunc or xGeom) is
-# invoked to determine if a particular object or subtree overlaps the
-# desired region.
-proc box_geom {args} {
-  lappend ::box_geom [concat [lindex $args 0] [lrange $args 2 end-1]]
-  return ""
-}
-register_box_geom db box_geom
-set box_geom [list]
-do_execsql_test 1.3.2 {
-  SELECT id FROM demo_index WHERE id MATCH box(43,46, 21,25);
-} {10 30}
-do_test 1.3.3 {
-  set ::box_geom
-} [list {*}{
-  {box {43.0 46.0 21.0 25.0} {45.0 45.0 24.0 24.0}}
-  {box {43.0 46.0 21.0 25.0} {50.0 50.0 28.0 28.0}} 
-  {box {43.0 46.0 21.0 25.0} {43.0 43.0 22.0 22.0}}
-}]
-
-#-------------------------------------------------------------------------
-#-------------------------------------------------------------------------
-# Section 6 of documentation.
-#-------------------------------------------------------------------------
-#-------------------------------------------------------------------------
-set testprefix rtreedoc2-2
-
-# EVIDENCE-OF: R-02424-24769 The second argument is the number of
-# coordinates in each r-tree entry, and is always the same for any given
-# R*Tree.
-#
-# EVIDENCE-OF: R-40260-16838 The number of coordinates is 2 for a
-# 1-dimensional R*Tree, 4 for a 2-dimensional R*Tree, 6 for a
-# 3-dimensional R*Tree, and so forth.
-#
-# The second argument refered to above is the length of the list passed
-# as the 3rd parameter to the Tcl script.
-#
-do_execsql_test 1.0 {
-  CREATE VIRTUAL TABLE rt1 USING rtree(id, x1,x2);
-  CREATE VIRTUAL TABLE rt2 USING rtree(id, x1,x2, y1,y2);
-  CREATE VIRTUAL TABLE rt3 USING rtree(id, x1,x2, y1,y2, z1,z2);
-
-  INSERT INTO rt1 DEFAULT VALUES;
-  INSERT INTO rt2 DEFAULT VALUES;
-  INSERT INTO rt3 DEFAULT VALUES;
-}
-foreach {tn tbl nCoord} {
-  1 rt1 2     
-  2 rt2 4
-  3 rt3 6
-} {
-  set ::box_geom [list]
-  do_catchsql_test 1.$tn.1 "
-    SELECT id FROM $tbl WHERE id MATCH box();
-  " {1 {SQL logic error}}
-
-  do_test 1.$tn.2 {
-    llength [lindex $::box_geom 0 2]
-  } $nCoord
-}
-
-# EVIDENCE-OF: R-28051-48608 If xGeom returns anything other than
-# SQLITE_OK, then the r-tree query will abort with an error.
-proc box_geom {args} {
-  error "an error!"
-}
-do_catchsql_test 2.0 {
-  SELECT * FROM rt2 WHERE id MATCH box(22,23, 24,25); 
-} {1 {SQL logic error}}
-
-do_execsql_test 3.0 {
-  INSERT INTO rt1 VALUES(10, 10, 10);
-  INSERT INTO rt1 VALUES(11, 11, 11);
-  INSERT INTO rt1 VALUES(12, 12, 12);
-  INSERT INTO rt1 VALUES(13, 13, 13);
-  INSERT INTO rt1 VALUES(14, 14, 14);
-}
-
-# EVIDENCE-OF: R-53759-57366 The exact same sqlite3_rtree_geometry
-# structure is used for every callback for same MATCH operator in the
-# same query.
-proc box_geom {args} {
-  lappend ::ptr_list [lindex $args 4]
-  return 0
-}
-set ::ptr_list [list]
-do_execsql_test 3.1 {
-  SELECT * FROM rt1 WHERE id MATCH box(1,1);
-}
-do_test 3.2 {
-  set val [lindex $::ptr_list 0]
-  foreach p $::ptr_list {
-    if {$p!=$val} {error "pointer mismatch"}
-  }
-} {}
-
-# EVIDENCE-OF: R-60247-35692 The contents of the sqlite3_rtree_geometry
-# structure are initialized by SQLite but are not subsequently modified.
-proc box_geom {args} {
-  lappend ::box_geom [concat [lindex $args 0] [lrange $args 2 end-1]]
-  if {[llength $::box_geom]==3} {
-    return "zero"
-  }
-  return ""
-}
-set ::box_geom [list]
-do_catchsql_test 3.2 {
-  SELECT * FROM rt1 WHERE id MATCH box(1,1);
-} {1 {SQL logic error}}
-do_test 3.3 {
-  set ::box_geom
-} [list {*}{
-  {box {1.0 1.0} {0.0 0.0}} 
-  {box {1.0 1.0} {10.0 10.0}} 
-  {box {1.0 1.0} {11.0 11.0}} 
-  {box 0.0 {12.0 12.0}}
-}]
-
-# EVIDENCE-OF: R-31246-29731 The pContext member of the
-# sqlite3_rtree_geometry structure is always set to a copy of the
-# pContext argument passed to sqlite3_rtree_geometry_callback() when the
-# callback is registered.
-reset_db
-do_execsql_test 4.0 {
-  CREATE VIRTUAL TABLE r1 USING rtree(id, minX,maxX, minY,maxY);
-  WITH s(i) AS (
-    VALUES(1) UNION ALL SELECT i+1 FROM s WHERE i<120
-  )
-  INSERT INTO r1 SELECT i,i,i+1,  200,201 FROM s;
-}
-set ctx [register_box_geom db box_geom]
-set ::box_geom [list]
-proc box_geom {args} {
-  lappend ::box_geom [lindex $args 1]
-  return ""
-}
-do_execsql_test 4.1 {
-  SELECT count(*) FROM r1 WHERE id MATCH box(0,150,199,201)
-} 120
-do_test 4.2 {
-  foreach g $::box_geom {
-    if {$g!=$ctx} {error "pointer mismatch"}
-  }
-} {}
-
-# EVIDENCE-OF: R-09904-19077 The aParam[] array (size nParam) contains
-# the parameter values passed to the SQL function on the right-hand side
-# of the MATCH operator.
-proc box_geom {args} {
-  set ::box_geom [lindex $args 2]
-}
-foreach {tn q vals} {
-  1 "SELECT count(*) FROM r1 WHERE id MATCH box(1,2,3)" {1.0 2.0 3.0}
-  2 "SELECT count(*) FROM r1 WHERE id MATCH box(10001)" {10001.0}
-  3 "SELECT count(*) FROM r1 WHERE id MATCH box(-10001)" {-10001.0}
-} {
-  do_catchsql_test 5.$tn.1 $q {1 {SQL logic error}}
-  do_test 5.$tn.2 { set ::box_geom } $vals
-}
-
-do_execsql_test 5.0 {
-  CREATE VIRTUAL TABLE myrtree USING rtree(id, x1,x2);
-  INSERT INTO myrtree VALUES(1, 1, 1);
-  INSERT INTO myrtree VALUES(2, 2, 2);
-  INSERT INTO myrtree VALUES(3, 3, 3);
-}
-
-# EVIDENCE-OF: R-44448-00687 The pUser and xDelUser members of the
-# sqlite3_rtree_geometry structure are initially set to NULL.
-set ::box_geom_calls 0
-proc box_geom {args} {
-  incr ::box_geom_calls
-  return user_is_zero
-}
-do_execsql_test 5.1.1 {
-  SELECT * FROM myrtree WHERE id MATCH box(4, 5);
-} 
-do_test 5.1.2 { set ::box_geom_calls } 3
-
-
-# EVIDENCE-OF: R-55837-00155 The pUser variable may be set by the
-# callback implementation to any arbitrary value that may be useful to
-# subsequent invocations of the callback within the same query (for
-# example, a pointer to a complicated data structure used to test for
-# region intersection).
-#
-# EVIDENCE-OF: R-34745-08839 If the xDelUser variable is set to a
-# non-NULL value, then after the query has finished running SQLite
-# automatically invokes it with the value of the pUser variable as the
-# only argument.
-#
-set ::box_geom_calls 0
-proc box_geom {args} {
-  incr ::box_geom_calls
-  switch -- $::box_geom_calls {
-    1 {
-      return user_is_zero
-    }
-    2 {
-      return [list user box_geom_finalizer]
-    }
-  }
-  return ""
-}
-proc box_geom_finalizer {} {
-  set ::box_geom_finalizer "::box_geom_calls is $::box_geom_calls"
-}
-do_execsql_test 5.1.1 {
-  SELECT * FROM myrtree WHERE id MATCH box(4, 5);
-} 
-do_test 5.1.2 { set ::box_geom_calls } 3
-do_test 5.1.3 {
-  set ::box_geom_finalizer
-} {::box_geom_calls is 3}
- 
-
-# EVIDENCE-OF: R-28176-28813 The xGeom callback always does a
-# depth-first search of the r-tree.
-#
-# For a breadth first search, final test case would return "B L" only.
-#
-do_execsql_test 6.0 {
-  CREATE VIRTUAL TABLE xyz USING rtree(x, x1,x2, y1,y2);
-  WITH s(i) AS (
-    VALUES(1) UNION ALL SELECT i+1 FROM s WHERE i<15
-  )
-  INSERT INTO xyz SELECT NULL, one.i,one.i+1,  two.i,two.i+1 FROM s one, s two;
-}
-do_execsql_test 6.1 {
-  SELECT count(*) FROM xyz_node
-} {10}
-proc box_geom {args} {
-  set coords [lindex $args 3]
-  set area [expr {
-    ([lindex $coords 1]-[lindex $coords 0]) * 
-    ([lindex $coords 3]-[lindex $coords 2])
-  }]
-  if {$area==1} {
-    lappend ::box_geom_calls L
-  } else {
-    lappend ::box_geom_calls B
-  }
-}
-set ::box_geom_calls [list]
-do_execsql_test 6.2 {
-  SELECT count(*) FROM xyz WHERE x MATCH box(0,20,0,20)
-} 225
-do_test 6.3 {
-  set prev ""
-  set box_calls [list]
-  foreach c $::box_geom_calls {
-    if {$c!=$prev} {
-      lappend ::box_calls $c
-      set prev $c
-    }
-  }
-  set ::box_calls
-} {B L B L B L B L B L B L B L B L B L}
-
-
-finish_test
-
@@ -1,292 +0,0 @@
-# 2021 September 13
-#
-# The author disclaims copyright to this source code.  In place of
-# a legal notice, here is a blessing:
-#
-#    May you do good and not evil.
-#    May you find forgiveness for yourself and forgive others.
-#    May you share freely, never taking more than you give.
-#
-#***********************************************************************
-#
-# The focus of this file is testing the r-tree extension.
-#
-
-if {![info exists testdir]} {
-  set testdir [file join [file dirname [info script]] .. .. test]
-}
-source [file join [file dirname [info script]] rtree_util.tcl]
-source $testdir/tester.tcl
-set testprefix rtreedoc3
-
-ifcapable !rtree {
-  finish_test
-  return
-}
-
-
-# This command assumes that the argument is a node blob for a 2 dimensional
-# i32 r-tree table. It decodes and returns a list of cells from the node
-# as a list. Each cell is itself a list of the following form:
-#
-#    {$rowid $minX $maxX $minY $maxY}
-#
-# For internal (non-leaf) nodes, the rowid is replaced by the child node
-# number.
-#
-proc rnode_cells {aData} {
-  set nDim 2
-
-  set nData [string length $aData]
-  set nBytePerCell [expr (8 + 2*$nDim*4)]
-  binary scan [string range $aData 2 3] S nCell
-
-  set res [list]
-  for {set i 0} {$i < $nCell} {incr i} {
-    set iOff [expr $i*$nBytePerCell+4]
-    set cell [string range $aData $iOff [expr $iOff+$nBytePerCell-1]]
-    binary scan $cell WIIII rowid x1 x2 y1 y2
-    lappend res [list $rowid $x1 $x2 $y1 $y2]
-  }
-
-  return $res
-}
-
-# Interpret the first two bytes of the blob passed as the only parameter
-# as a 16-bit big-endian integer and return the value. If this blob is
-# the root node of an r-tree, this value is the height of the tree.
-#
-proc rnode_height {aData} {
-  binary scan [string range $aData 0 1] S nHeight
-  return $nHeight
-}
-
-# Return a blob containing node iNode of r-tree "rt".
-#
-proc rt_node_get {iNode} {
-  db one { SELECT data FROM rt_node WHERE nodeno=$iNode }
-}
-
-
-#--------------------------------------------------------------
-# API:
-#
-#    pq_init 
-#      Initialize a new test.
-#
-#    pq_test_callback
-#      Invoked each time the xQueryCallback function is called. This Tcl
-#      command checks that the arguments that SQLite passed to xQueryCallback
-#      are as expected.
-#
-#    pq_test_row
-#      Invoked each time a row is returned. Checks that the row returned
-#      was predicted by the documentation.
-#
-# DATA STRUCTURE:
-#    The priority queue is stored as a Tcl list. The order of elements in 
-#    the list is unimportant - it is just used as a set here. Each element
-#    in the priority queue is itself a list. The first element is the
-#    priority value for the entry (a real). Following this is a list of
-#    key-value pairs that make up the entries fields.
-#
-proc pq_init {} {
-  global Q 
-  set Q(pri_queue)  [list]
-
-  set nHeight [rnode_height [rt_node_get 1]]
-  set nCell [llength [rnode_cells [rt_node_get 1]]]
-
-  # EVIDENCE-OF: R-54708-13595 An R*Tree query is initialized by making
-  # the root node the only entry in a priority queue sorted by rScore.
-  lappend Q(pri_queue) [list 0.0 [list \
-    iLevel [expr $nHeight+1] \
-    iChild 1                 \
-    iCurrent   0             \
-  ]]
-}
-
-proc pq_extract {} {
-  global Q
-  if {[llength $Q(pri_queue)]==0} {
-    error "priority queue is empty!"
-  }
-
-  # Find the priority queue entry with the lowest score.
-  #
-  # EVIDENCE-OF: R-47257-47871 Smaller scores are processed first.
-  set iBest 0
-  set rBestScore [lindex $Q(pri_queue) 0 0]
-  for {set ii 1} {$ii < [llength $Q(pri_queue)]} {incr ii} {
-    set rScore [expr [lindex $Q(pri_queue) $ii 0]]
-    if {$rScore<$rBestScore} {
-      set rBestScore $rScore
-      set iBest $ii
-    }
-  }
-
-  # Extract the entry with the lowest score from the queue and return it. 
-  #
-  # EVIDENCE-OF: R-60002-49798 The query proceeds by extracting the entry
-  # from the priority queue that has the lowest score.
-  set ret [lindex $Q(pri_queue) $iBest]
-  set Q(pri_queue) [lreplace $Q(pri_queue) $iBest $iBest]
-
-  return $ret
-}
-
-proc pq_new_entry {rScore iLevel cell} {
-  global Q
-
-  set rowid_name "iChild"
-  if {$iLevel==0} { set rowid_name "iRowid" }
-
-  set kv [list]
-  lappend kv aCoord [lrange $cell 1 end]
-  lappend kv iLevel $iLevel
-
-  if {$iLevel==0} {
-    lappend kv iRowid [lindex $cell 0]
-  } else {
-    lappend kv iChild [lindex $cell 0]
-    lappend kv iCurrent 0
-  }
-
-  lappend Q(pri_queue) [list $rScore $kv]
-}
-
-proc pq_test_callback {L res} {
-  #pq_debug "pq_test_callback $L -> $res"
-  global Q
-
-  array set G $L    ;# "Got" - as in stuff passed to xQuery
-
-  # EVIDENCE-OF: R-65127-42665 If the extracted priority queue entry is a
-  # node (a subtree), then the next child of that node is passed to the
-  # xQueryFunc callback.
-  #
-  # If it had been a leaf, the row should have been returned, instead of
-  # xQueryCallback being called on a child - as is happening here.
-  foreach {rParentScore parent} [pq_extract] {}
-  array set P $parent ;# "Parent" - as in parent of expected cell
-  if {$P(iLevel)==0} { error "query callback mismatch (1)" }
-  set child_node [rnode_cells [rt_node_get $P(iChild)]]
-  set expected_cell [lindex $child_node $P(iCurrent)]
-  set expected_coords [lrange $expected_cell 1 end]
-  if {[llength $expected_coords] != [llength $G(aCoord)]} {
-  puts [array get P]
-  puts "E: $expected_coords  G: $G(aCoord)"
-    error "coordinate mismatch in query callback (1)"
-  }
-  foreach a [lrange $expected_cell 1 end] b $G(aCoord) {
-    if {$a!=$b} { error "coordinate mismatch in query callback (2)" }
-  }
-
-  # Check level is as expected
-  #
-  if {$G(iLevel) != $P(iLevel)-1} {
-    error "iLevel mismatch in query callback (1)"
-  }
-
-  # Unless the callback returned NOT_WITHIN, add the entry to the priority
-  # queue.
-  #
-  # EVIDENCE-OF: R-28754-35153 Those subelements for which the xQueryFunc
-  # callback sets eWithin to PARTLY_WITHIN or FULLY_WITHIN are added to
-  # the priority queue using the score supplied by the callback.
-  #
-  # EVIDENCE-OF: R-08681-45277 Subelements that return NOT_WITHIN are
-  # discarded.
-  set r [lindex $res 0]
-  set rScore [lindex $res 1]
-  if {$r!="fully" && $r!="partly" && $r!="not"} {
-    error "unknown result: $r - expected \"fully\", \"partly\" or \"not\""
-  }
-  if {$r!="not"} {
-    pq_new_entry $rScore [expr $P(iLevel)-1] $expected_cell
-  }
-
-  # EVIDENCE-OF: R-07194-63805 If the node has more children then it is
-  # returned to the priority queue. Otherwise it is discarded.
-  incr P(iCurrent)
-  if {$P(iCurrent)<[llength $child_node]} {
-    lappend Q(pri_queue) [list $rParentScore [array get P]]
-  }
-}
-
-proc pq_test_result {id x1 x2 y1 y2} {
-  #pq_debug "pq_test_result $id $x1 $x2 $y1 $y2"
-  foreach {rScore next} [pq_extract] {}
-
-  # The extracted entry must be a leaf (otherwise, xQueryCallback would
-  # have been called on the extracted entries children instead of just
-  # returning the data).
-  #
-  # EVIDENCE-OF: R-13214-54017 If that entry is a leaf (meaning that it is
-  # an actual R*Tree entry and not a subtree) then that entry is returned
-  # as one row of the query result.
-  array set N $next
-  if {$N(iLevel)!=0} { error "result row mismatch (1)" }
-
-  if {$x1!=[lindex $N(aCoord) 0] || $x2!=[lindex $N(aCoord) 1]
-   || $y1!=[lindex $N(aCoord) 2] || $y2!=[lindex $N(aCoord) 3]
-  } {
-    if {$N(iLevel)!=0} { error "result row mismatch (2)" }
-  }
-
-  if {$id!=$N(iRowid)} { error "result row mismatch (3)" }
-}
-
-proc pq_done {} {
-  global Q
-  # EVIDENCE-OF: R-57438-45968 The query runs until the priority queue is
-  # empty.
-  if {[llength $Q(pri_queue)]>0} {
-    error "priority queue is not empty!"
-  }
-}
-
-proc pq_debug {caption} {
-  global Q
-
-  puts "**** $caption ****"
-  set i 0
-  foreach q [lsort -real -index 0 $Q(pri_queue)] { 
-    puts "PQ $i: $q" 
-    incr i
-  }
-}
-
-#--------------------------------------------------------------
-
-proc box_query {a} {
-  set res [list fully [expr rand()]]
-  pq_test_callback $a $res
-  return $res
-}
-
-register_box_query db box_query
-
-do_execsql_test 1.0 {
-  CREATE VIRTUAL TABLE rt USING rtree_i32(id,  x1,x2,  y1,y2);
-  WITH s(i) AS (
-    SELECT 0 UNION ALL SELECT i+1 FROM s WHERE i<64
-  )
-  INSERT INTO rt SELECT NULL, a.i, a.i+1, b.i, b.i+1 FROM s a, s b;
-}
-
-proc box_query {a} {
-  set res [list fully [expr rand()]]
-  pq_test_callback $a $res
-  return $res
-}
-
-pq_init
-db eval { SELECT id, x1,x2, y1,y2 FROM rt WHERE id MATCH qbox() } {
-  pq_test_result $id $x1 $x2 $y1 $y2
-}
-pq_done
-
-finish_test
-
-
@@ -1,348 +0,0 @@
-/*
-** 2010 August 28
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** Code for testing all sorts of SQLite interfaces. This code
-** is not included in the SQLite library. 
-*/
-
-#include "sqlite3.h"
-#if defined(INCLUDE_SQLITE_TCL_H)
-#  include "sqlite_tcl.h"
-#else
-#  include "tcl.h"
-#endif
-
-/* Solely for the UNUSED_PARAMETER() macro. */
-#include "sqliteInt.h"
-
-#ifdef SQLITE_ENABLE_RTREE
-
-typedef struct BoxGeomCtx BoxGeomCtx;
-struct BoxGeomCtx {
-  Tcl_Interp *interp;
-  Tcl_Obj *pScript;
-};
-
-typedef struct BoxQueryCtx BoxQueryCtx;
-struct BoxQueryCtx {
-  Tcl_Interp *interp;
-  Tcl_Obj *pScript;
-};
-
-static void testDelUser(void *pCtx){
-  BoxGeomCtx *p = (BoxGeomCtx*)pCtx;
-  Tcl_EvalObjEx(p->interp, p->pScript, 0);
-  Tcl_DecrRefCount(p->pScript);
-  sqlite3_free(p);
-}
-
-static int invokeTclGeomCb(
-  const char *zName, 
-  sqlite3_rtree_geometry *p, 
-  int nCoord,
-  sqlite3_rtree_dbl *aCoord
-){
-  int rc = SQLITE_OK;
-  if( p->pContext ){
-    char aPtr[64];
-    BoxGeomCtx *pCtx = (BoxGeomCtx*)p->pContext;
-    Tcl_Interp *interp = pCtx->interp;
-    Tcl_Obj *pScript = 0;
-    Tcl_Obj *pParam = 0;
-    Tcl_Obj *pCoord = 0;
-    int ii;
-    Tcl_Obj *pRes;
-
-
-    pScript = Tcl_DuplicateObj(pCtx->pScript);
-    Tcl_IncrRefCount(pScript);
-    Tcl_ListObjAppendElement(interp, pScript, Tcl_NewStringObj(zName,-1));
-
-    sqlite3_snprintf(sizeof(aPtr)-1, aPtr, "%p", (void*)p->pContext);
-    Tcl_ListObjAppendElement(interp, pScript, Tcl_NewStringObj(aPtr,-1));
-
-    pParam = Tcl_NewObj();
-    for(ii=0; ii<p->nParam; ii++){
-      Tcl_ListObjAppendElement(
-          interp, pParam, Tcl_NewDoubleObj(p->aParam[ii])
-      );
-    }
-    Tcl_ListObjAppendElement(interp, pScript, pParam);
-
-    pCoord = Tcl_NewObj();
-    for(ii=0; ii<nCoord; ii++){
-      Tcl_ListObjAppendElement(interp, pCoord, Tcl_NewDoubleObj(aCoord[ii]));
-    }
-    Tcl_ListObjAppendElement(interp, pScript, pCoord);
-
-    sqlite3_snprintf(sizeof(aPtr)-1, aPtr, "%p", (void*)p);
-    Tcl_ListObjAppendElement(interp, pScript, Tcl_NewStringObj(aPtr,-1));
-
-    rc = Tcl_EvalObjEx(interp, pScript, 0);
-    if( rc!=TCL_OK ){
-      rc = SQLITE_ERROR;
-    }else{
-      int nObj = 0;
-      Tcl_Obj **aObj = 0;
-
-      pRes = Tcl_GetObjResult(interp);
-      if( Tcl_ListObjGetElements(interp, pRes, &nObj, &aObj) ) return TCL_ERROR;
-      if( nObj>0 ){
-        const char *zCmd = Tcl_GetString(aObj[0]);
-        if( 0==sqlite3_stricmp(zCmd, "zero") ){
-          p->aParam[0] = 0.0;
-          p->nParam = 1;
-        }
-        else if( 0==sqlite3_stricmp(zCmd, "user") ){
-          if( p->pUser || p->xDelUser ){
-            rc = SQLITE_ERROR;
-          }else{
-            BoxGeomCtx *pBGCtx = sqlite3_malloc(sizeof(BoxGeomCtx));
-            if( pBGCtx==0 ){
-              rc = SQLITE_NOMEM;
-            }else{
-              pBGCtx->interp = interp;
-              pBGCtx->pScript = Tcl_DuplicateObj(pRes);
-              Tcl_IncrRefCount(pBGCtx->pScript);
-              Tcl_ListObjReplace(interp, pBGCtx->pScript, 0, 1, 0, 0);
-              p->pUser = (void*)pBGCtx;
-              p->xDelUser = testDelUser;
-            }
-          }
-        }
-        else if( 0==sqlite3_stricmp(zCmd, "user_is_zero") ){
-          if( p->pUser || p->xDelUser ) rc = SQLITE_ERROR;
-        }
-      }
-    }
-  }
-  return rc;
-}
-
-/*
-# EVIDENCE-OF: R-00693-36727 The legacy xGeom callback is invoked with
-# four arguments.
-
-# EVIDENCE-OF: R-50437-53270 The first argument is a pointer to an
-# sqlite3_rtree_geometry structure which provides information about how
-# the SQL function was invoked.
-
-# EVIDENCE-OF: R-00090-24248 The third argument, aCoord[], is an array
-# of nCoord coordinates that defines a bounding box to be tested.
-
-# EVIDENCE-OF: R-28207-40885 The last argument is a pointer into which
-# the callback result should be written.
-
-*/
-static int box_geom(
-  sqlite3_rtree_geometry *p,      /* R-50437-53270 */
-  int nCoord,                     /* R-02424-24769 */
-  sqlite3_rtree_dbl *aCoord,      /* R-00090-24248 */
-  int *pRes                       /* R-28207-40885 */
-){
-  int ii;
-
-  if( p->nParam!=nCoord ){
-    invokeTclGeomCb("box", p, nCoord, aCoord);
-    return SQLITE_ERROR;
-  }
-  if( invokeTclGeomCb("box", p, nCoord, aCoord) ) return SQLITE_ERROR;
-
-  for(ii=0; ii<nCoord; ii+=2){
-    if( aCoord[ii]>p->aParam[ii+1] || aCoord[ii+1]<p->aParam[ii] ){
-      /* R-28207-40885 */
-      *pRes = 0;
-      return SQLITE_OK;
-    }
-  }
-
-  /* R-28207-40885 */
-  *pRes = 1;
-
-  return SQLITE_OK;
-}
-
-static int SQLITE_TCLAPI register_box_geom(
-  void * clientData,
-  Tcl_Interp *interp,
-  int objc,
-  Tcl_Obj *CONST objv[]
-){
-  extern int getDbPointer(Tcl_Interp*, const char*, sqlite3**);
-  extern const char *sqlite3ErrName(int);
-  sqlite3 *db;
-  BoxGeomCtx *pCtx;
-  char aPtr[64];
-
-  if( objc!=3 ){
-    Tcl_WrongNumArgs(interp, 1, objv, "DB SCRIPT");
-    return TCL_ERROR;
-  }
-  if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
-
-  pCtx = (BoxGeomCtx*)ckalloc(sizeof(BoxGeomCtx*));
-  pCtx->interp = interp;
-  pCtx->pScript = Tcl_DuplicateObj(objv[2]);
-  Tcl_IncrRefCount(pCtx->pScript);
-
-  sqlite3_rtree_geometry_callback(db, "box", box_geom, (void*)pCtx);
-
-  sqlite3_snprintf(64, aPtr, "%p", (void*)pCtx);
-  Tcl_SetObjResult(interp, Tcl_NewStringObj(aPtr, -1));
-  return TCL_OK;
-}
-
-static int box_query(sqlite3_rtree_query_info *pInfo){
-  const char *azParentWithin[] = {"not", "partly", "fully", 0};
-  BoxQueryCtx *pCtx = (BoxQueryCtx*)pInfo->pContext;
-  Tcl_Interp *interp = pCtx->interp;
-  Tcl_Obj *pEval;
-  Tcl_Obj *pArg;
-  Tcl_Obj *pTmp = 0;
-  int rc;
-  int ii;
-
-  pEval = Tcl_DuplicateObj(pCtx->pScript);
-  Tcl_IncrRefCount(pEval);
-  pArg = Tcl_NewObj();
-  Tcl_IncrRefCount(pArg);
-
-  /* aParam[] */
-  pTmp = Tcl_NewObj();
-  Tcl_IncrRefCount(pTmp);
-  for(ii=0; ii<pInfo->nParam; ii++){
-    Tcl_Obj *p = Tcl_NewDoubleObj(pInfo->aParam[ii]);
-    Tcl_ListObjAppendElement(interp, pTmp, p);
-  }
-  Tcl_ListObjAppendElement(interp, pArg, Tcl_NewStringObj("aParam", -1));
-  Tcl_ListObjAppendElement(interp, pArg, pTmp);
-  Tcl_DecrRefCount(pTmp);
-
-  /* aCoord[] */
-  pTmp = Tcl_NewObj();
-  Tcl_IncrRefCount(pTmp);
-  for(ii=0; ii<pInfo->nCoord; ii++){
-    Tcl_Obj *p = Tcl_NewDoubleObj(pInfo->aCoord[ii]);
-    Tcl_ListObjAppendElement(interp, pTmp, p);
-  }
-  Tcl_ListObjAppendElement(interp, pArg, Tcl_NewStringObj("aCoord", -1));
-  Tcl_ListObjAppendElement(interp, pArg, pTmp);
-  Tcl_DecrRefCount(pTmp);
-
-  /* anQueue[] */
-  pTmp = Tcl_NewObj();
-  Tcl_IncrRefCount(pTmp);
-  for(ii=0; ii<=pInfo->mxLevel; ii++){
-    Tcl_Obj *p = Tcl_NewIntObj((int)pInfo->anQueue[ii]);
-    Tcl_ListObjAppendElement(interp, pTmp, p);
-  }
-  Tcl_ListObjAppendElement(interp, pArg, Tcl_NewStringObj("anQueue", -1));
-  Tcl_ListObjAppendElement(interp, pArg, pTmp);
-  Tcl_DecrRefCount(pTmp);
-  
-  /* iLevel */
-  Tcl_ListObjAppendElement(interp, pArg, Tcl_NewStringObj("iLevel", -1));
-  Tcl_ListObjAppendElement(interp, pArg, Tcl_NewIntObj(pInfo->iLevel));
-
-  /* mxLevel */
-  Tcl_ListObjAppendElement(interp, pArg, Tcl_NewStringObj("mxLevel", -1));
-  Tcl_ListObjAppendElement(interp, pArg, Tcl_NewIntObj(pInfo->mxLevel));
-
-  /* iRowid */
-  Tcl_ListObjAppendElement(interp, pArg, Tcl_NewStringObj("iRowid", -1));
-  Tcl_ListObjAppendElement(interp, pArg, Tcl_NewWideIntObj(pInfo->iRowid));
-
-  /* rParentScore */
-  Tcl_ListObjAppendElement(interp, pArg, Tcl_NewStringObj("rParentScore", -1));
-  Tcl_ListObjAppendElement(interp, pArg, Tcl_NewDoubleObj(pInfo->rParentScore));
-
-  /* eParentWithin */
-  assert( pInfo->eParentWithin==0 
-       || pInfo->eParentWithin==1 
-       || pInfo->eParentWithin==2 
-  );
-  Tcl_ListObjAppendElement(interp, pArg, Tcl_NewStringObj("eParentWithin", -1));
-  Tcl_ListObjAppendElement(interp, pArg, 
-      Tcl_NewStringObj(azParentWithin[pInfo->eParentWithin], -1)
-  );
-
-  Tcl_ListObjAppendElement(interp, pEval, pArg);
-  rc = Tcl_EvalObjEx(interp, pEval, 0) ? SQLITE_ERROR : SQLITE_OK;
-
-  if( rc==SQLITE_OK ){
-    double rScore = 0.0;
-    int nObj = 0;
-    int eP = 0;
-    Tcl_Obj **aObj = 0;
-    Tcl_Obj *pRes = Tcl_GetObjResult(interp);
-
-    if( Tcl_ListObjGetElements(interp, pRes, &nObj, &aObj) 
-     || nObj!=2 
-     || Tcl_GetDoubleFromObj(interp, aObj[1], &rScore)
-     || Tcl_GetIndexFromObj(interp, aObj[0], azParentWithin, "value", 0, &eP)
-    ){
-      rc = SQLITE_ERROR;
-    }else{
-      pInfo->rScore = rScore;
-      pInfo->eParentWithin = eP;
-    }
-  }
-
-  Tcl_DecrRefCount(pArg);
-  Tcl_DecrRefCount(pEval);
-  return rc;
-}
-
-static void box_query_destroy(void *p){
-  BoxQueryCtx *pCtx = (BoxQueryCtx*)p;
-  Tcl_DecrRefCount(pCtx->pScript);
-  ckfree((char*)pCtx);
-}
-
-static int SQLITE_TCLAPI register_box_query(
-  void * clientData,
-  Tcl_Interp *interp,
-  int objc,
-  Tcl_Obj *CONST objv[]
-){
-  extern int getDbPointer(Tcl_Interp*, const char*, sqlite3**);
-  extern const char *sqlite3ErrName(int);
-  sqlite3 *db;
-  BoxQueryCtx *pCtx;
-
-  if( objc!=3 ){
-    Tcl_WrongNumArgs(interp, 1, objv, "DB SCRIPT");
-    return TCL_ERROR;
-  }
-  if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
-
-  pCtx = (BoxQueryCtx*)ckalloc(sizeof(BoxQueryCtx));
-  pCtx->interp = interp;
-  pCtx->pScript = Tcl_DuplicateObj(objv[2]);
-  Tcl_IncrRefCount(pCtx->pScript);
-
-  sqlite3_rtree_query_callback(
-      db, "qbox", box_query, (void*)pCtx, box_query_destroy
-  );
-
-  Tcl_ResetResult(interp);
-  return TCL_OK;
-}
-#endif /* SQLITE_ENABLE_RTREE */
-
-
-int Sqlitetestrtreedoc_Init(Tcl_Interp *interp){
-#ifdef SQLITE_ENABLE_RTREE
-  Tcl_CreateObjCommand(interp, "register_box_geom", register_box_geom, 0, 0);
-  Tcl_CreateObjCommand(interp, "register_box_query", register_box_query, 0, 0);
-#endif /* SQLITE_ENABLE_RTREE */
-  return TCL_OK;
-}
@@ -152,26 +152,6 @@ do_changeset_test $tn.2.4.2 S {}
 do_changeset_invert_test $tn.2.4.3 S {}
 do_test $tn.2.4.4 { S delete } {}

-do_execsql_test $tn.2.5.0 {
-  SELECT * FROM t1 ORDER BY x
-} {
-  2  Surin
-  10 Sukhothai
-  20 Thapae
-}
-
-do_test $tn.2.5.1 {
-  sqlite3session S db main
-  S attach t1
-  execsql { DELETE FROM t1 }
-} {}
-do_changeset_test $tn.2.5.2 S {
-  {DELETE t1 0 X. {i 10 t Sukhothai} {}} 
-  {DELETE t1 0 X. {i 2 t Surin} {}}
-  {DELETE t1 0 X. {i 20 t Thapae} {}}
-}
-do_test $tn.2.5.3 { S delete } {}
-
 #-------------------------------------------------------------------------
 # Test the application of simple changesets. These tests also test that
 # the conflict callback is invoked correctly. For these tests, the 
@@ -19,7 +19,6 @@ if {![info exists testdir]} {
 source [file join [file dirname [info script]] session_common.tcl]
 source $testdir/tester.tcl
 ifcapable !session {finish_test; return}
-ifcapable !incrblob {finish_test; return}

 set testprefix session6

@@ -63,7 +63,7 @@ proc do_then_undo {tn sql} {
 do_execsql_test 1.1 {
  CREATE TABLE t1(a PRIMARY KEY, b);
  INSERT INTO t1 VALUES(1, 2);
-  INSERT INTO t1 VALUES('abc', 'xyz');
+  INSERT INTO t1 VALUES("abc", "xyz");
 }
 do_then_undo 1.2 { INSERT INTO t1 VALUES(3, 4); }
 do_then_undo 1.3 { DELETE FROM t1 WHERE b=2; }
@@ -20,13 +20,8 @@ if {![info exists testdir]} {
 source [file join [file dirname [info script]] session_common.tcl]
 source $testdir/tester.tcl
 ifcapable !session {finish_test; return}
-set testprefix sessionat

-# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
-ifcapable !altertable {
-  finish_test
-  return
-}
+set testprefix sessionat

 db close
 sqlite3_shutdown
@@ -25,11 +25,6 @@ if {[permutation]=="session_strm" || [permutation]=="session_eec"} {
  return
 }

-if {$::tcl_platform(pointerSize)<8} {
-  finish_test
-  return
-}
-
 set testprefix sessionbig

 forcedelete test.db2
@@ -420,7 +420,7 @@ static int sessionSerializeValue(
  
        if( aBuf ){
          sessionVarintPut(&aBuf[1], n);
-          if( n>0 ) memcpy(&aBuf[nVarint + 1], z, n);
+          if( n ) memcpy(&aBuf[nVarint + 1], z, n);
        }
  
        nByte = 1 + nVarint + n;
@@ -1025,32 +1025,16 @@ static int sessionTableInfo(
    }else if( rc==SQLITE_ERROR ){
      zPragma = sqlite3_mprintf("");
    }else{
-      *pazCol = 0;
-      *pabPK = 0;
-      *pnCol = 0;
-      if( pzTab ) *pzTab = 0;
      return rc;
    }
  }else{
    zPragma = sqlite3_mprintf("PRAGMA '%q'.table_info('%q')", zDb, zThis);
  }
-  if( !zPragma ){
-    *pazCol = 0;
-    *pabPK = 0;
-    *pnCol = 0;
-    if( pzTab ) *pzTab = 0;
-    return SQLITE_NOMEM;
-  }
+  if( !zPragma ) return SQLITE_NOMEM;

  rc = sqlite3_prepare_v2(db, zPragma, -1, &pStmt, 0);
  sqlite3_free(zPragma);
-  if( rc!=SQLITE_OK ){
-    *pazCol = 0;
-    *pabPK = 0;
-    *pnCol = 0;
-    if( pzTab ) *pzTab = 0;
-    return rc;
-  }
+  if( rc!=SQLITE_OK ) return rc;

  nByte = nThis + 1;
  while( SQLITE_ROW==sqlite3_step(pStmt) ){
@@ -1468,11 +1452,7 @@ static int sessionFindTable(
    ){
      rc = sqlite3session_attach(pSession, zName);
      if( rc==SQLITE_OK ){
-        pRet = pSession->pTable;
-        while( ALWAYS(pRet) && pRet->pNext ){
-          pRet = pRet->pNext;
-        }
-        assert( pRet!=0 );
+        for(pRet=pSession->pTable; pRet->pNext; pRet=pRet->pNext);
        assert( 0==sqlite3_strnicmp(pRet->zName, zName, nName+1) );
      }
    }
@@ -2245,7 +2225,6 @@ static int sessionAppendUpdate(
  int i;                        /* Used to iterate through columns */
  u8 *pCsr = p->aRecord;        /* Used to iterate through old.* values */

-  assert( abPK!=0 );
  sessionAppendByte(pBuf, SQLITE_UPDATE, &rc);
  sessionAppendByte(pBuf, p->bIndirect, &rc);
  for(i=0; i<sqlite3_column_count(pStmt); i++){
@@ -2550,14 +2529,12 @@ static int sessionGenerateChangeset(
  SessionBuffer buf = {0,0,0};    /* Buffer in which to accumlate changeset */
  int rc;                         /* Return code */

-  assert( xOutput==0 || (pnChangeset==0 && ppChangeset==0) );
-  assert( xOutput!=0 || (pnChangeset!=0 && ppChangeset!=0) );
+  assert( xOutput==0 || (pnChangeset==0 && ppChangeset==0 ) );

  /* Zero the output variables in case an error occurs. If this session
  ** object is already in the error state (sqlite3_session.rc != SQLITE_OK),
  ** this call will be a no-op.  */
  if( xOutput==0 ){
-    assert( pnChangeset!=0  && ppChangeset!=0 );
    *pnChangeset = 0;
    *ppChangeset = 0;
  }
@@ -2571,8 +2548,8 @@ static int sessionGenerateChangeset(
  for(pTab=pSession->pTable; rc==SQLITE_OK && pTab; pTab=pTab->pNext){
    if( pTab->nEntry ){
      const char *zName = pTab->zName;
-      int nCol = 0;               /* Number of columns in table */
-      u8 *abPK = 0;               /* Primary key array */
+      int nCol;                   /* Number of columns in table */
+      u8 *abPK;                   /* Primary key array */
      const char **azCol = 0;     /* Table columns */
      int i;                      /* Used to iterate through hash buckets */
      sqlite3_stmt *pSel = 0;     /* SELECT statement to query table pTab */
@@ -2610,7 +2587,6 @@ static int sessionGenerateChangeset(
                sessionAppendCol(&buf, pSel, iCol, &rc);
              }
            }else{
-              assert( abPK!=0 );  /* Because sessionSelectStmt() returned ok */
              rc = sessionAppendUpdate(&buf, bPatchset, pSel, p, abPK);
            }
          }else if( p->op!=SQLITE_INSERT ){
@@ -2671,10 +2647,7 @@ int sqlite3session_changeset(
  int *pnChangeset,               /* OUT: Size of buffer at *ppChangeset */
  void **ppChangeset              /* OUT: Buffer containing changeset */
 ){
-  int rc;
-
-  if( pnChangeset==0 || ppChangeset==0 ) return SQLITE_MISUSE;
-  rc = sessionGenerateChangeset(pSession, 0, 0, 0, pnChangeset,ppChangeset);
+  int rc = sessionGenerateChangeset(pSession, 0, 0, 0, pnChangeset,ppChangeset);
  assert( rc || pnChangeset==0 
       || pSession->bEnableSize==0 || *pnChangeset<=pSession->nMaxChangesetSize 
  );
@@ -2689,7 +2662,6 @@ int sqlite3session_changeset_strm(
  int (*xOutput)(void *pOut, const void *pData, int nData),
  void *pOut
 ){
-  if( xOutput==0 ) return SQLITE_MISUSE;
  return sessionGenerateChangeset(pSession, 0, xOutput, pOut, 0, 0);
 }

@@ -2701,7 +2673,6 @@ int sqlite3session_patchset_strm(
  int (*xOutput)(void *pOut, const void *pData, int nData),
  void *pOut
 ){
-  if( xOutput==0 ) return SQLITE_MISUSE;
  return sessionGenerateChangeset(pSession, 1, xOutput, pOut, 0, 0);
 }

@@ -2717,7 +2688,6 @@ int sqlite3session_patchset(
  int *pnPatchset,                /* OUT: Size of buffer at *ppChangeset */
  void **ppPatchset               /* OUT: Buffer containing changeset */
 ){
-  if( pnPatchset==0 || ppPatchset==0 ) return SQLITE_MISUSE;
  return sessionGenerateChangeset(pSession, 1, 0, 0, pnPatchset, ppPatchset);
 }

@@ -3681,11 +3651,11 @@ static int sessionChangesetInvert(
  }

  assert( rc==SQLITE_OK );
-  if( pnInverted && ALWAYS(ppInverted) ){
+  if( pnInverted ){
    *pnInverted = sOut.nBuf;
    *ppInverted = sOut.aBuf;
    sOut.aBuf = 0;
-  }else if( sOut.nBuf>0 && ALWAYS(xOutput!=0) ){
+  }else if( sOut.nBuf>0 ){
    rc = xOutput(pOut, sOut.aBuf, sOut.nBuf);
  }

@@ -4141,7 +4111,7 @@ static int sessionBindRow(

  for(i=0; rc==SQLITE_OK && i<nCol; i++){
    if( !abPK || abPK[i] ){
-      sqlite3_value *pVal = 0;
+      sqlite3_value *pVal;
      (void)xValue(pIter, i, &pVal);
      if( pVal==0 ){
        /* The value in the changeset was "undefined". This indicates a
@@ -5284,9 +5254,9 @@ static int sessionChangegroupOutput(
  if( rc==SQLITE_OK ){
    if( xOutput ){
      if( buf.nBuf>0 ) rc = xOutput(pOut, buf.aBuf, buf.nBuf);
-    }else if( ppOut ){
+    }else{
      *ppOut = buf.aBuf;
-      if( pnOut ) *pnOut = buf.nBuf;
+      *pnOut = buf.nBuf;
      buf.aBuf = 0;
    }
  }
@@ -5686,7 +5656,7 @@ static int sessionRebase(
      if( sOut.nBuf>0 ){
        rc = xOutput(pOut, sOut.aBuf, sOut.nBuf);
      }
-    }else if( ppOut ){
+    }else{
      *ppOut = (void*)sOut.aBuf;
      *pnOut = sOut.nBuf;
      sOut.aBuf = 0;
@@ -1,7 +0,0 @@
-_fiddle_exec
-_fiddle_interrupt
-_fiddle_experiment
-_fiddle_the_db
-_fiddle_db_arg
-_fiddle_db_filename
-_fiddle_reset_db
@@ -1,14 +0,0 @@
-FS
-addFunction
-allocateUTF8OnStack
-ccall
-cwrap
-getValue
-intArrayFromString
-lengthBytesUTF8
-removeFunction
-setValue
-stackAlloc
-stackRestore
-stackSave
-stringToUTF8Array
@@ -1,287 +0,0 @@
-# This GNU makefile exists primarily to simplify/speed up development
-# of the sqlite3 WASM components. It is not part of the canonical
-# build process.
-#
-# Maintenance notes: the fiddle build is currently performed in the
-# top-level ../../Makefile.in. It may be moved into this file at some
-# point, as GNU Make has been deemed acceptable for the WASM-related
-# components (whereas POSIX Make is required for the more conventional
-# components).
-SHELL := $(shell which bash 2>/dev/null)
-all:
-
-.PHONY: fiddle
-ifneq (,$(wildcard /home/stephan))
-  fiddle_opt ?= -O0
-else
-  fiddle_opt = -Os
-endif
-fiddle:
-	$(MAKE) -C ../.. fiddle -e emcc_opt=$(fiddle_opt)
-
-clean:
-	$(MAKE) -C ../../ clean-fiddle
-	-rm -f $(CLEAN_FILES)
-
-MAKEFILE := $(lastword $(MAKEFILE_LIST))
-dir.top := ../..
-# Reminder: some Emscripten flags require absolute paths
-dir.wasm := $(patsubst %/,%,$(dir $(abspath $(MAKEFILE))))
-dir.api := api
-dir.jacc := jaccwabyt
-dir.common := common
-CLEAN_FILES := *~ $(dir.jacc)/*~ $(dir.api)/*~ $(dir.common)/*~
-
-SQLITE_OPT = \
-  -DSQLITE_ENABLE_FTS4 \
-  -DSQLITE_ENABLE_RTREE \
-  -DSQLITE_ENABLE_EXPLAIN_COMMENTS \
-  -DSQLITE_ENABLE_UNKNOWN_SQL_FUNCTION \
-  -DSQLITE_ENABLE_STMTVTAB \
-  -DSQLITE_ENABLE_DBPAGE_VTAB \
-  -DSQLITE_ENABLE_DBSTAT_VTAB \
-  -DSQLITE_ENABLE_BYTECODE_VTAB \
-  -DSQLITE_ENABLE_OFFSET_SQL_FUNC \
-  -DSQLITE_OMIT_LOAD_EXTENSION \
-  -DSQLITE_OMIT_DEPRECATED \
-  -DSQLITE_OMIT_UTF16 \
-  -DSQLITE_THREADSAFE=0
-#SQLITE_OPT += -DSQLITE_ENABLE_MEMSYS5
-$(dir.top)/sqlite3.c:
-	$(MAKE) -C $(dir.top) sqlite3.c
-
-# SQLITE_OMIT_LOAD_EXTENSION: if this is true, sqlite3_vfs::xDlOpen
-# and friends may be NULL.
-
-emcc_opt ?= -O0
-.PHONY: release
-release:
-	$(MAKE) 'emcc_opt=-Os -g3'
-# ^^^^^ target-specific vars, e.g.:
-#   release: emcc_opt=...
-# apparently only work for file targets, not PHONY targets?
-#
-# ^^^^ -O3, -Oz, -Os minify symbol names and there appears to be no
-# way around that except to use -g3, but -g3 causes the binary file
-# size to absolutely explode (approx. 5x larger). This minification
-# utterly breaks the resulting module, making it unsable except as
-# self-contained/self-referential-only code, as ALL of the exported
-# symbols get minified names.
-#
-# However, we have an option for using -Oz or -Os:
-#
-# Build with (-Os -g3) or (-Oz -g3) then use wasm-strip, from the wabt
-# tools package (https://github.com/WebAssembly/wabt), to strip the
-# debugging symbols. That results in a small build with unmangled
-# symbol names. -Oz gives ever-so-slightly better compression than
-# -Os: not quite 1% in some completely unscientific tests. Runtime
-# speed for the unit tests is all over the place either way so it's
-# difficult to say whether -Os gives any speed benefit over -Oz.
-########################################################################
-
-# Emscripten SDK home dir and related binaries...
-EMSDK_HOME ?= $(word 1,$(wildcard $(HOME)/src/emsdk $(HOME)/emsdk))
-emcc.bin ?= $(word 1,$(wildcard $(shell which emcc) $(EMSDK_HOME)/upstream/emscripten/emcc))
-ifeq (,$(emcc.bin))
-  $(error Cannot find emcc.)
-endif
-
-wasm-strip ?= $(shell which wasm-strip 2>/dev/null)
-ifeq (,$(filter clean,$(MAKECMDGOALS)))
-ifeq (,$(wasm-strip))
-  $(info WARNING: *******************************************************************)
-  $(info WARNING: builds using -O3/-Os/-Oz will minify WASM-exported names,)
-  $(info WARNING: breaking _All The Things_. The workaround for that is to build)
-  $(info WARNING: with -g3 (which explodes the file size) and then strip the debug)
-  $(info WARNING: info after compilation, using wasm-strip, to shrink the wasm file.)
-  $(info WARNING: wasm-strip was not found in the PATH so we cannot strip those.)
-  $(info WARNING: If this build uses any optimization level higher than -O2 then)
-  $(info WARNING: the ***resulting WASM binary WILL NOT BE USABLE***.)
-  $(info WARNING: wasm-strip is part of the wabt package:)
-  $(info WARNING:    https://github.com/WebAssembly/wabt)
-  $(info WARNING: on Ubuntu-like systems it can be installed with:)
-  $(info WARNING:    sudo apt install wabt)
-  $(info WARNING: *******************************************************************)
-endif
-endif # 'make clean' check
-
-ifeq (release,$(filter release,$(MAKECMDGOALS)))
-  ifeq (,$(wasm-strip))
-    $(error Cannot make release-quality binary because wasm-strip is not available. \
-            See notes in the warning above)
-  endif
-else
-  $(info Development build. Use '$(MAKE) release' for a smaller release build.)
-endif
-
-EXPORTED_FUNCTIONS.api.in := $(dir.api)/EXPORTED_FUNCTIONS.sqlite3-api \
-    $(dir.jacc)/jaccwabyt_test.exports
-
-EXPORTED_FUNCTIONS.api: $(EXPORTED_FUNCTIONS.api.in) $(MAKEFILE)
-	cat $(EXPORTED_FUNCTIONS.api.in) > $@
-CLEAN_FILES += EXPORTED_FUNCTIONS.api
-
-sqlite3-api.jses := \
-  $(dir.api)/sqlite3-api-prologue.js \
-  $(dir.common)/whwasmutil.js \
-  $(dir.jacc)/jaccwabyt.js \
-  $(dir.api)/sqlite3-api-glue.js \
-  $(dir.api)/sqlite3-api-oo1.js \
-  $(dir.api)/sqlite3-api-worker.js \
-  $(dir.api)/sqlite3-api-opfs.js \
-  $(dir.api)/sqlite3-api-cleanup.js
-
-sqlite3-api.js := $(dir.api)/sqlite3-api.js
-CLEAN_FILES += $(sqlite3-api.js)
-$(sqlite3-api.js): $(sqlite3-api.jses) $(MAKEFILE)
-	@echo "Making $@..."
-	@for i in $(sqlite3-api.jses); do \
-		echo "/* BEGIN FILE: $$i */"; \
-		cat $$i; \
-		echo "/* END FILE: $$i */"; \
-	done > $@
-
-post-js.js := $(dir.api)/post-js.js
-CLEAN_FILES += $(post-js.js)
-post-jses := \
-  $(dir.api)/post-js-header.js \
-  $(sqlite3-api.js) \
-  $(dir.api)/post-js-footer.js
-
-$(post-js.js): $(post-jses) $(MAKEFILE)
-	@echo "Making $@..."
-	@for i in $(post-jses); do \
-		echo "/* BEGIN FILE: $$i */"; \
-		cat $$i; \
-		echo "/* END FILE: $$i */"; \
-	done > $@
-
-
-########################################################################
-# emcc flags for .c/.o/.wasm.
-emcc.flags =
-#emcc.flags += -v # _very_ loud but also informative about what it's doing
-
-########################################################################
-# emcc flags for .c/.o.
-emcc.cflags :=
-emcc.cflags += -std=c99 -fPIC
-# -------------^^^^^^^^ we currently need c99 for WASM-specific sqlite3 APIs.
-emcc.cflags += -I. -I$(dir.top) # $(SQLITE_OPT)
-
-########################################################################
-# emcc flags specific to building the final .js/.wasm file...
-emcc.jsflags := -fPIC
-emcc.jsflags += --no-entry
-emcc.jsflags += -sENVIRONMENT=web
-emcc.jsflags += -sMODULARIZE
-emcc.jsflags += -sSTRICT_JS
-emcc.jsflags += -sDYNAMIC_EXECUTION=0
-emcc.jsflags += -sNO_POLYFILL
-emcc.jsflags += -sEXPORTED_FUNCTIONS=@$(dir.wasm)/EXPORTED_FUNCTIONS.api
-emcc.jsflags += -sEXPORTED_RUNTIME_METHODS=FS,wasmMemory # wasmMemory==>for -sIMPORTED_MEMORY
-emcc.jsflags += -sUSE_CLOSURE_COMPILER=0
-emcc.jsflags += -sIMPORTED_MEMORY
-#emcc.jsflags += -sINITIAL_MEMORY=13107200
-#emcc.jsflags += -sTOTAL_STACK=4194304
-emcc.jsflags += -sEXPORT_NAME=sqlite3InitModule
-emcc.jsflags += -sGLOBAL_BASE=4096 # HYPOTHETICALLY keep func table indexes from overlapping w/ heap addr.
-emcc.jsflags +=--post-js=$(post-js.js)
-#emcc.jsflags += -sSTRICT # fails due to missing __syscall_...()
-#emcc.jsflags += -sALLOW_UNIMPLEMENTED_SYSCALLS
-#emcc.jsflags += -sFILESYSTEM=0 # only for experimentation. sqlite3 needs the FS API
-#emcc.jsflags += -sABORTING_MALLOC
-emcc.jsflags += -sALLOW_MEMORY_GROWTH
-emcc.jsflags += -sALLOW_TABLE_GROWTH
-emcc.jsflags += -Wno-limited-postlink-optimizations
-# ^^^^^ it likes to warn when we have "limited optimizations" via the -g3 flag.
-#emcc.jsflags += -sMALLOC=emmalloc
-#emcc.jsflags += -sMALLOC=dlmalloc # a good 8k larger than emmalloc
-#emcc.jsflags += -sSTANDALONE_WASM # causes OOM errors, not sure why
-#emcc.jsflags += --import=foo_bar
-#emcc.jsflags += --no-gc-sections
-# https://lld.llvm.org/WebAssembly.html
-emcc.jsflags += -sERROR_ON_UNDEFINED_SYMBOLS=0
-emcc.jsflags += -sLLD_REPORT_UNDEFINED
-#emcc.jsflags += --allow-undefined
-emcc.jsflags += --import-undefined
-#emcc.jsflags += --unresolved-symbols=import-dynamic --experimental-pic
-#emcc.jsflags +=  --experimental-pic --unresolved-symbols=ingore-all --import-undefined
-#emcc.jsflags += --unresolved-symbols=ignore-all
-enable_bigint ?= 1
-ifneq (0,$(enable_bigint))
-emcc.jsflags += -sWASM_BIGINT
-endif
-emcc.jsflags += -sMEMORY64=0
-# ^^^^ MEMORY64=1 fails to load, erroring with:
-#  invalid memory limits flags 0x5
-#    (enable via --experimental-wasm-memory64)
-#
-# ^^^^ MEMORY64=2 builds and loads but dies when we do things like:
-#
-#  new Uint8Array(heapWrappers().HEAP8U.buffer, ptr, n)
-#
-# because ptr is now a BigInt, so is invalid for passing to arguments
-# which have strict must-be-a-number requirements.
-########################################################################
-
-
-sqlite3.js := $(dir.api)/sqlite3.js
-sqlite3.wasm := $(dir.api)/sqlite3.wasm
-$(dir.api)/sqlite3-wasm.o: emcc.cflags += $(SQLITE_OPT)
-$(dir.api)/sqlite3-wasm.o: $(dir.top)/sqlite3.c
-$(dir.api)/wasm_util.o: emcc.cflags += $(SQLITE_OPT)
-sqlite3.wasm.c := $(dir.api)/sqlite3-wasm.c \
-    $(dir.jacc)/jaccwabyt_test.c
-# ^^^ FIXME (how?): jaccwabyt_test.c is only needed for the test
-# apps. However, we want to test the release builds with those apps,
-# so we cannot simply elide that file in release builds. That
-# component is critical to the VFS bindings so needs to be tested
-# along with the core APIs.
-define WASM_C_COMPILE
-$(1).o := $$(subst .c,.o,$(1))
-sqlite3.wasm.obj += $$($(1).o)
-$$($(1).o): $$(MAKEFILE) $(1)
-	$$(emcc.bin) $$(emcc_opt) $$(emcc.flags) $$(emcc.cflags) -c $(1) -o $$@
-CLEAN_FILES += $$($(1).o)
-endef
-$(foreach c,$(sqlite3.wasm.c),$(eval $(call WASM_C_COMPILE,$(c))))
-$(sqlite3.js): 
-$(sqlite3.js): $(MAKEFILE) $(sqlite3.wasm.obj) \
-    EXPORTED_FUNCTIONS.api \
-    $(post-js.js)
-	$(emcc.bin) -o $@ $(emcc_opt) $(emcc.flags) $(emcc.jsflags) $(sqlite3.wasm.obj)
-	chmod -x $(sqlite3.wasm)
-ifneq (,$(wasm-strip))
-	$(wasm-strip) $(sqlite3.wasm)
-endif
-	@ls -la $@ $(sqlite3.wasm)
-
-CLEAN_FILES += $(sqlite3.js) $(sqlite3.wasm)
-all: $(sqlite3.js)
-# End main Emscripten-based module build
-########################################################################
-
-
-########################################################################
-# fiddle_remote is the remote destination for the fiddle app. It
-# must be a [user@]HOST:/path for rsync.
-# Note that the target "should probably" contain a symlink of
-# index.html -> fiddle.html.
-fiddle_remote ?=
-ifeq (,$(fiddle_remote))
-ifneq (,$(wildcard /home/stephan))
-  fiddle_remote = wh:www/wh/sqlite3/.
-else ifneq (,$(wildcard /home/drh))
-  #fiddle_remote = if appropriate, add that user@host:/path here
-endif
-endif
-$(fiddle_files): default
-push-fiddle: $(fiddle_files)
-	@if [ x = "x$(fiddle_remote)" ]; then \
-		echo "fiddle_remote must be a [user@]HOST:/path for rsync"; \
-		exit 1; \
-	fi
-	rsync -va fiddle/ $(fiddle_remote)
-# end fiddle remote push
-########################################################################
@@ -1,103 +0,0 @@
-This directory houses the [Web Assembly (WASM)](https://en.wikipedia.org/wiki/WebAssembly)
-parts of the sqlite3 build.
-
-It requires [emscripten][] and that the build environment be set up for
-emscripten. A mini-HOWTO for setting that up follows...
-
-First, install the Emscripten SDK, as documented
-[here](https://emscripten.org/docs/getting_started/downloads.html) and summarized
-below for Linux environments:
-
-```
-# Clone the emscripten repository:
-$ git clone https://github.com/emscripten-core/emsdk.git
-$ cd emsdk
-
-# Download and install the latest SDK tools:
-$ ./emsdk install latest
-
-# Make the "latest" SDK "active" for the current user:
-$ ./emsdk activate latest
-```
-
-Those parts only need to be run once, but the SDK can be updated using:
-
-```
-$ git pull
-$ ./emsdk activate latest
-```
-
-The following needs to be run for each shell instance which needs the
-`emcc` compiler:
-
-```
-# Activate PATH and other environment variables in the current terminal:
-$ source ./emsdk_env.sh
-
-$ which emcc
-/path/to/emsdk/upstream/emscripten/emcc
-```
-
-Optionally, add that to your login shell's resource file (`~/.bashrc`
-or equivalent).
-
-That `env` script needs to be sourced for building this application
-from the top of the sqlite3 build tree:
-
-```
-$ make fiddle
-```
-
-Or:
-
-```
-$ cd ext/wasm
-$ make
-```
-
-That will generate the fiddle application under
-[ext/fiddle](/dir/ext/wasm/fiddle), as `fiddle.html`. That application
-cannot, due to XMLHttpRequest security limitations, run if the HTML
-file is opened directly in the browser (i.e. if it is opened using a
-`file://` URL), so it needs to be served via an HTTP server.  For
-example, using [althttpd][]:
-
-```
-$ cd ext/wasm/fiddle
-$ althttpd -page fiddle.html
-```
-
-That will open the system's browser and run the fiddle app's page.
-
-Note that when serving this app via [althttpd][], it must be a version
-from 2022-05-17 or newer so that it recognizes the `.wasm` file
-extension and responds with the mimetype `application/wasm`, as the
-WASM loader is pedantic about that detail.
-
-
-# Known Quirks and Limitations
-
-Some "impedence mismatch" between C and WASM/JavaScript is to be
-expected.
-
-## No I/O
-
-sqlite3 shell commands which require file I/O or pipes are disabled in
-the WASM build.
-
-## `exit()` Triggered from C
-
-When C code calls `exit()`, as happens (for example) when running an
-"unsafe" command when safe mode is active, WASM's connection to the
-sqlite3 shell environment has no sensible choice but to shut down
-because `exit()` leaves it in a state we can no longer recover
-from. The JavaScript-side application attempts to recognize this and
-warn the user that restarting the application is necessary. Currently
-the only way to restart it is to reload the page. Restructuring the
-shell code such that it could be "rebooted" without restarting the
-JS app would require some invasive changes which are not currently
-on any TODO list but have not been entirely ruled out long-term.
-
-
-[emscripten]: https://emscripten.org
-[althttpd]: https://sqlite.org/althttpd
@@ -1,72 +0,0 @@
-_sqlite3_bind_blob
-_sqlite3_bind_double
-_sqlite3_bind_int
-_sqlite3_bind_int64
-_sqlite3_bind_null
-_sqlite3_bind_parameter_count
-_sqlite3_bind_parameter_index
-_sqlite3_bind_text
-_sqlite3_changes
-_sqlite3_changes64
-_sqlite3_clear_bindings
-_sqlite3_close_v2
-_sqlite3_column_blob
-_sqlite3_column_bytes
-_sqlite3_column_count
-_sqlite3_column_count
-_sqlite3_column_double
-_sqlite3_column_int
-_sqlite3_column_int64
-_sqlite3_column_name
-_sqlite3_column_text
-_sqlite3_column_type
-_sqlite3_compileoption_get
-_sqlite3_compileoption_used
-_sqlite3_create_function_v2
-_sqlite3_data_count
-_sqlite3_db_filename
-_sqlite3_db_name
-_sqlite3_errmsg
-_sqlite3_error_offset
-_sqlite3_errstr
-_sqlite3_exec
-_sqlite3_expanded_sql
-_sqlite3_extended_errcode
-_sqlite3_extended_result_codes
-_sqlite3_finalize
-_sqlite3_initialize
-_sqlite3_interrupt
-_sqlite3_libversion
-_sqlite3_libversion_number
-_sqlite3_open
-_sqlite3_open_v2
-_sqlite3_prepare_v2
-_sqlite3_prepare_v3
-_sqlite3_reset
-_sqlite3_result_blob
-_sqlite3_result_double
-_sqlite3_result_error
-_sqlite3_result_error_code
-_sqlite3_result_error_nomem
-_sqlite3_result_error_toobig
-_sqlite3_result_int
-_sqlite3_result_null
-_sqlite3_result_text
-_sqlite3_sourceid
-_sqlite3_sql
-_sqlite3_step
-_sqlite3_strglob
-_sqlite3_strlike
-_sqlite3_total_changes
-_sqlite3_total_changes64
-_sqlite3_value_blob
-_sqlite3_value_bytes
-_sqlite3_value_double
-_sqlite3_value_text
-_sqlite3_value_type
-_sqlite3_vfs_find
-_sqlite3_vfs_register
-_sqlite3_wasm_db_error
-_sqlite3_wasm_enum_json
-_malloc
-_free
@@ -1,3 +0,0 @@
-FS
-wasmMemory
-
--- a/Show More
+++ b/Show More
@@ -1 +1 @@
 .40.0
 .36.0