diff --git a/Makefile.in b/Makefile.in
index fd0ad6b6a7..9b2fe86cf4 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -558,7 +558,9 @@ TESTOPTS = --verbose=file --output=test-out.txt
 # Extra compiler options for various shell tools
 #
 SHELL_OPT = -DSQLITE_ENABLE_JSON1 -DSQLITE_ENABLE_FTS4
+# SHELL_OPT += -DSQLITE_ENABLE_FTS5
 SHELL_OPT += -DSQLITE_ENABLE_EXPLAIN_COMMENTS
+SHELL_OPT += -DSQLITE_ENABLE_UNKNOWN_SQL_FUNCTION
 FUZZERSHELL_OPT = -DSQLITE_ENABLE_JSON1
 FUZZCHECK_OPT = -DSQLITE_ENABLE_JSON1 -DSQLITE_ENABLE_MEMSYS5
 
diff --git a/Makefile.msc b/Makefile.msc
index 527efd8f7d..cd866ce4a4 100644
--- a/Makefile.msc
+++ b/Makefile.msc
@@ -24,13 +24,6 @@ USE_AMALGAMATION = 1
 USE_FULLWARN = 0
 !ENDIF
 
-# Set this non-0 to enable full runtime error checks (-RTC1, etc).  This
-# has no effect if (any) optimizations are enabled.
-#
-!IFNDEF USE_RUNTIME_CHECKS
-USE_RUNTIME_CHECKS = 0
-!ENDIF
-
 # Set this non-0 to use "stdcall" calling convention for the core library
 # and shell executable.
 #
@@ -471,32 +464,20 @@ 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 -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 -DSQLITE_CDECL=__cdecl -DSQLITE_APICALL=__stdcall -DSQLITE_CALLBACK=__stdcall -DSQLITE_SYSAPI=__stdcall -DINCLUDE_SQLITE_TCL_H=1 -DSQLITE_TCLAPI=__cdecl
-# <</mark>>
+CORE_CCONV_OPTS = -Gz -DSQLITE_CDECL=__cdecl -DSQLITE_STDCALL=__stdcall
+SHELL_CCONV_OPTS = -Gz -DSQLITE_CDECL=__cdecl -DSQLITE_STDCALL=__stdcall
 !ELSE
 !IFNDEF PLATFORM
-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 -DSQLITE_CDECL=__cdecl -DSQLITE_APICALL=__stdcall -DSQLITE_CALLBACK=__stdcall -DSQLITE_SYSAPI=__stdcall -DINCLUDE_SQLITE_TCL_H=1 -DSQLITE_TCLAPI=__cdecl
-# <</mark>>
+CORE_CCONV_OPTS = -Gz -DSQLITE_CDECL=__cdecl -DSQLITE_STDCALL=__stdcall
+SHELL_CCONV_OPTS = -Gz -DSQLITE_CDECL=__cdecl -DSQLITE_STDCALL=__stdcall
 !ELSE
 CORE_CCONV_OPTS =
 SHELL_CCONV_OPTS =
-# <<mark>>
-TEST_CCONV_OPTS =
-# <</mark>>
 !ENDIF
 !ENDIF
 !ELSE
 CORE_CCONV_OPTS =
 SHELL_CCONV_OPTS =
-# <<mark>>
-TEST_CCONV_OPTS =
-# <</mark>>
 !ENDIF
 
 # These are additional compiler options used for the core library.
@@ -854,10 +835,6 @@ RCC = $(RCC) -D_DEBUG
 !IF $(DEBUG)>1 || $(OPTIMIZATIONS)==0
 TCC = $(TCC) -Od
 BCC = $(BCC) -Od
-!IF $(USE_RUNTIME_CHECKS)!=0
-TCC = $(TCC) -RTC1
-BCC = $(BCC) -RTC1
-!ENDIF
 !ELSEIF $(OPTIMIZATIONS)>=3
 TCC = $(TCC) -Ox
 BCC = $(BCC) -Ox
@@ -1258,12 +1235,6 @@ SRC11 = \
   parse.h \
   $(SQLITE3H)
 
-# Generated Tcl header files
-#
-SRC12 = \
-  sqlite_tcl.h \
-  sqlite_tclDecls.h
-
 # All source code files.
 #
 SRC = $(SRC00) $(SRC01) $(SRC02) $(SRC03) $(SRC04) $(SRC05) $(SRC06) $(SRC07) $(SRC08) $(SRC09) $(SRC10) $(SRC11)
@@ -1370,7 +1341,7 @@ HDR = \
    parse.h \
    $(TOP)\src\pragma.h \
    $(SQLITE3H) \
-   sqlite3ext.h \
+   $(TOP)\src\sqlite3ext.h \
    $(TOP)\src\sqliteInt.h \
    $(TOP)\src\sqliteLimit.h \
    $(TOP)\src\vdbe.h \
@@ -1528,7 +1499,7 @@ mptest:	mptester.exe
 # files are automatically generated.  This target takes care of
 # all that automatic generation.
 #
-.target_source:	$(SRC) $(TOP)\tool\vdbe-compress.tcl fts5.c sqlite_tcl.h
+.target_source:	$(SRC) $(TOP)\tool\vdbe-compress.tcl fts5.c
 	-rmdir /Q/S tsrc 2>NUL
 	-mkdir tsrc
 	for %i in ($(SRC00)) do copy /Y %i tsrc
@@ -1543,7 +1514,6 @@ mptest:	mptester.exe
 	for %i in ($(SRC09)) do copy /Y %i tsrc
 	for %i in ($(SRC10)) do copy /Y %i tsrc
 	for %i in ($(SRC11)) do copy /Y %i tsrc
-	for %i in ($(SRC12)) do copy /Y %i tsrc
 	copy /Y fts5.c tsrc
 	copy /Y fts5.h tsrc
 	del /Q tsrc\sqlite.h.in tsrc\parse.y 2>NUL
@@ -1825,10 +1795,10 @@ wherecode.lo:	$(TOP)\src\wherecode.c $(HDR)
 whereexpr.lo:	$(TOP)\src\whereexpr.c $(HDR)
 	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\whereexpr.c
 
-tclsqlite.lo:	$(TOP)\src\tclsqlite.c $(HDR) sqlite_tcl.h
+tclsqlite.lo:	$(TOP)\src\tclsqlite.c $(HDR)
 	$(LTCOMPILE) $(NO_WARN) -DUSE_TCL_STUBS=1 -DBUILD_sqlite -I$(TCLINCDIR) -c $(TOP)\src\tclsqlite.c
 
-tclsqlite-shell.lo:	$(TOP)\src\tclsqlite.c $(HDR) sqlite_tcl.h
+tclsqlite-shell.lo:	$(TOP)\src\tclsqlite.c $(HDR)
 	$(LTCOMPILE) $(NO_WARN) -DTCLSH=1 -DBUILD_sqlite -I$(TCLINCDIR) -c $(TOP)\src\tclsqlite.c
 
 tclsqlite3.exe:	tclsqlite-shell.lo $(SQLITE3C) $(SQLITE3H) $(LIBRESOBJS)
@@ -1857,9 +1827,7 @@ $(SQLITE3H):	$(TOP)\src\sqlite.h.in $(TOP)\manifest.uuid $(TOP)\VERSION
 	$(TCLSH_CMD) $(TOP)\tool\mksqlite3h.tcl $(TOP:\=/) > $(SQLITE3H)
 
 sqlite3ext.h:	.target_source
-	type tsrc\sqlite3ext.h | $(TCLSH_CMD) $(TOP)\tool\replace.tcl regsub "\(\*\)" "(SQLITE_CALLBACK *)" \
-		| $(TCLSH_CMD) $(TOP)\tool\replace.tcl regsub "\(\*" "(SQLITE_APICALL *" > sqlite3ext.h
-	copy /Y sqlite3ext.h tsrc\sqlite3ext.h
+	copy tsrc\sqlite3ext.h .
 
 mkkeywordhash.exe:	$(TOP)\tool\mkkeywordhash.c
 	$(BCC) $(NO_WARN) -Fe$@ $(REQ_FEATURE_FLAGS) $(OPT_FEATURE_FLAGS) $(EXT_FEATURE_FLAGS) $(OPTS) \
@@ -1992,7 +1960,6 @@ TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_SERVER=1 -DSQLITE_PRIVATE=""
 TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_CORE $(NO_WARN)
 TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_SERIES_CONSTRAINT_VERIFY=1
 TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_DEFAULT_PAGE_SIZE=1024
-TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) $(TEST_CCONV_OPTS)
 
 TESTFIXTURE_SRC0 = $(TESTEXT) $(TESTSRC2)
 TESTFIXTURE_SRC1 = $(TESTEXT) $(SQLITE3C)
@@ -2002,25 +1969,7 @@ TESTFIXTURE_SRC = $(TESTSRC) $(TOP)\src\tclsqlite.c $(TESTFIXTURE_SRC0)
 TESTFIXTURE_SRC = $(TESTSRC) $(TOP)\src\tclsqlite.c $(TESTFIXTURE_SRC1)
 !ENDIF
 
-sqlite_tclDecls.h:
-	echo #ifndef SQLITE_TCLAPI > sqlite_tclDecls.h
-	echo #  define SQLITE_TCLAPI >> sqlite_tclDecls.h
-	echo #endif >> sqlite_tclDecls.h
-	type "$(TCLINCDIR)\tclDecls.h" \
-		| $(TCLSH_CMD) $(TOP)\tool\replace.tcl regsub "^(EXTERN(?: CONST\d+?)?\s+?[^\(]*?\s+?)Tcl_" "\1 SQLITE_TCLAPI Tcl_" \
-		| $(TCLSH_CMD) $(TOP)\tool\replace.tcl regsub "^(EXTERN\s+?(?:void|VOID)\s+?)TclFreeObj" "\1 SQLITE_TCLAPI TclFreeObj" \
-		| $(TCLSH_CMD) $(TOP)\tool\replace.tcl regsub "\(\*tcl_" "(SQLITE_TCLAPI *tcl_" \
-		| $(TCLSH_CMD) $(TOP)\tool\replace.tcl regsub "\(\*tclFreeObj" "(SQLITE_TCLAPI *tclFreeObj" \
-		| $(TCLSH_CMD) $(TOP)\tool\replace.tcl regsub "\(\*" "(SQLITE_TCLAPI *" >> sqlite_tclDecls.h
-
-sqlite_tcl.h:	sqlite_tclDecls.h
-	type "$(TCLINCDIR)\tcl.h" | $(TCLSH_CMD) $(TOP)\tool\replace.tcl exact tclDecls.h sqlite_tclDecls.h \
-		| $(TCLSH_CMD) $(TOP)\tool\replace.tcl regsub "typedef (.*?)\(Tcl_" "typedef \1 (SQLITE_TCLAPI Tcl_" \
-		| $(TCLSH_CMD) $(TOP)\tool\replace.tcl exact "void (*freeProc)" "void (SQLITE_TCLAPI *freeProc)" \
-		| $(TCLSH_CMD) $(TOP)\tool\replace.tcl exact "Tcl_HashEntry *(*findProc)" "Tcl_HashEntry *(SQLITE_TCLAPI *findProc)" \
-		| $(TCLSH_CMD) $(TOP)\tool\replace.tcl exact "Tcl_HashEntry *(*createProc)" "Tcl_HashEntry *(SQLITE_TCLAPI *createProc)" >> sqlite_tcl.h
-
-testfixture.exe:	$(TESTFIXTURE_SRC) $(SQLITE3H) $(LIBRESOBJS) $(HDR) sqlite_tcl.h
+testfixture.exe:	$(TESTFIXTURE_SRC) $(SQLITE3H) $(LIBRESOBJS) $(HDR)
 	$(LTLINK) -DSQLITE_NO_SYNC=1 $(TESTFIXTURE_FLAGS) \
 		-DBUILD_sqlite -I$(TCLINCDIR) \
 		$(TESTFIXTURE_SRC) \
@@ -2069,7 +2018,7 @@ smoketest:	$(TESTPROGS)
 	@set PATH=$(LIBTCLPATH);$(PATH)
 	.\testfixture.exe $(TOP)\test\main.test $(TESTOPTS)
 
-sqlite3_analyzer.c:	$(SQLITE3C) $(SQLITE3H) $(TOP)\src\tclsqlite.c $(TOP)\tool\spaceanal.tcl sqlite_tcl.h
+sqlite3_analyzer.c:	$(SQLITE3C) $(SQLITE3H) $(TOP)\src\tclsqlite.c $(TOP)\tool\spaceanal.tcl
 	echo #define TCLSH 2 > $@
 	echo #define SQLITE_ENABLE_DBSTAT_VTAB 1 >> $@
 	copy $@ + $(SQLITE3C) + $(TOP)\src\tclsqlite.c $@
@@ -2149,7 +2098,7 @@ clean:
 	-rmdir /Q/S .libs 2>NUL
 	-rmdir /Q/S tsrc 2>NUL
 	del /Q .target_source 2>NUL
-	del /Q tclsqlite3.exe sqlite_tcl.h sqlite_tclDecls.h 2>NUL
+	del /Q tclsqlite3.exe 2>NUL
 	del /Q testloadext.dll 2>NUL
 	del /Q testfixture.exe test.db 2>NUL
 	del /Q LogEst.exe fts3view.exe rollback-test.exe showdb.exe 2>NUL
diff --git a/autoconf/tea/configure.ac b/autoconf/tea/configure.ac
index 8df0af6195..7fca05b2e7 100644
--- a/autoconf/tea/configure.ac
+++ b/autoconf/tea/configure.ac
@@ -78,7 +78,6 @@ TEA_ADD_LIBS([])
 TEA_ADD_CFLAGS([-DSQLITE_ENABLE_FTS3=1])
 TEA_ADD_CFLAGS([-DSQLITE_3_SUFFIX_ONLY=1])
 TEA_ADD_CFLAGS([-DSQLITE_ENABLE_RTREE=1])
-TEA_ADD_CFLAGS([-DSQLITE_OMIT_DEPRECATED=1])
 TEA_ADD_STUB_SOURCES([])
 TEA_ADD_TCL_SOURCES([])
 
diff --git a/ext/fts5/fts5.h b/ext/fts5/fts5.h
index b32e2132dd..a45c145d38 100644
--- a/ext/fts5/fts5.h
+++ b/ext/fts5/fts5.h
@@ -318,7 +318,7 @@ struct Fts5ExtensionApi {
 ** behaviour. The structure methods are expected to function as follows:
 **
 ** xCreate:
-**   This function is used to allocate and inititalize a tokenizer instance.
+**   This function is used to allocate and initialize a tokenizer instance.
 **   A tokenizer instance is required to actually tokenize text.
 **
 **   The first argument passed to this function is a copy of the (void*)
@@ -577,4 +577,3 @@ struct fts5_api {
 #endif
 
 #endif /* _FTS5_H */
-
diff --git a/main.mk b/main.mk
index e3da609750..451837ffff 100644
--- a/main.mk
+++ b/main.mk
@@ -470,6 +470,8 @@ TESTOPTS = --verbose=file --output=test-out.txt
 # Extra compiler options for various shell tools
 #
 SHELL_OPT = -DSQLITE_ENABLE_JSON1 -DSQLITE_ENABLE_FTS4 -DSQLITE_ENABLE_FTS5
+SHELL_OPT += -DSQLITE_ENABLE_EXPLAIN_COMMENTS
+SHELL_OPT += -DSQLITE_ENABLE_UNKNOWN_SQL_FUNCTION
 FUZZERSHELL_OPT = -DSQLITE_ENABLE_JSON1
 FUZZCHECK_OPT = -DSQLITE_ENABLE_JSON1 -DSQLITE_ENABLE_MEMSYS5
 
diff --git a/manifest b/manifest
index bcec45f458..3a589e9726 100644
--- a/manifest
+++ b/manifest
@@ -1,8 +1,8 @@
-C Fix\sa\sproblem\swith\sestimating\sthe\snumber\sof\srows\svisited\sby\sa\squery\sthat\suses\sa\smulti-column\sIN(SELECT...)\sconstraint.
-D 2016-08-03T18:00:49.612
-F Makefile.in 6c20d44f72d4564f11652b26291a214c8367e5db
+C Merge\strunk\schanges\swith\sthis\sbranch.
+D 2016-08-08T16:52:11.472
+F Makefile.in cfd8fb987cd7a6af046daa87daa146d5aad0e088
 F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
-F Makefile.msc 3340e479e5221f06c3d61726f8f7efff885e4233
+F Makefile.msc d66d0395c38571aab3804f8db0fa20707ae4609a
 F README.md 8ecc12493ff9f820cdea6520a9016001cb2e59b7
 F VERSION cb29eb11e493dd85b3eeec4053c03949bf98478e
 F aclocal.m4 a5c22d164aff7ed549d53a90fa56d56955281f50
@@ -18,7 +18,7 @@ F autoconf/configure.ac cacf2616abf6e4a569bde2ef365c143caeec40bc
 F autoconf/tea/Makefile.in b438a7020446c8a8156e8d97c8914a04833da6fd
 F autoconf/tea/README 3e9a3c060f29a44344ab50aec506f4db903fb873
 F autoconf/tea/aclocal.m4 52c47aac44ce0ddb1f918b6993e8beb8eee88f43
-F autoconf/tea/configure.ac 93d43c79e936fb16556e22498177d7e8571efa04
+F autoconf/tea/configure.ac 8aa16e3f0a5ca7959d4af198f46934ec187d395f
 F autoconf/tea/doc/sqlite3.n e1fe45d4f5286ee3d0ccc877aca2a0def488e9bb
 F autoconf/tea/license.terms 13bd403c9610fd2b76ece0ab50c4c5eda933d523
 F autoconf/tea/pkgIndex.tcl.in 3ef61715cf1c7bdcff56947ffadb26bc991ca39d
@@ -97,7 +97,7 @@ F ext/fts3/unicode/UnicodeData.txt cd07314edb62d49fde34debdaf92fa2aa69011e7
 F ext/fts3/unicode/mkunicode.tcl 2debed3f582d77b3fdd0b8830880250021571fd8
 F ext/fts3/unicode/parseunicode.tcl da577d1384810fb4e2b209bf3313074353193e95
 F ext/fts5/extract_api_docs.tcl a36e54ec777172ddd3f9a88daf593b00848368e0
-F ext/fts5/fts5.h b770c5e0a8d2ee071ddffc7ab722dbf3474a8abe
+F ext/fts5/fts5.h 62f3e33ceeb9a428db139f9c012186b371da1cc7
 F ext/fts5/fts5Int.h 9bd0c7c64285b5b368eca0ac63613185c5ad24ba
 F ext/fts5/fts5_aux.c daa57fb45216491814520bbb587e97bf81ced458
 F ext/fts5/fts5_buffer.c 4c1502d4c956cd092c89ce4480867f9d8bf325cd
@@ -308,7 +308,7 @@ F ext/userauth/userauth.c 5fa3bdb492f481bbc1709fc83c91ebd13460c69e
 F install-sh 9d4de14ab9fb0facae2f48780b874848cbf2f895 x
 F ltmain.sh 3ff0879076df340d2e23ae905484d8c15d5fdea8
 F magic.txt 8273bf49ba3b0c8559cb2774495390c31fd61c60
-F main.mk e9d66f1b1c4874221d12d940be3ce5f397c10741
+F main.mk 1883ecab643b136e8ab3fdc33785e6ea8b5ceb46
 F mkso.sh fd21c06b063bb16a5d25deea1752c2da6ac3ed83
 F mptest/config01.test 3c6adcbc50b991866855f1977ff172eb6d901271
 F mptest/config02.test 4415dfe36c48785f751e16e32c20b077c28ae504
@@ -324,23 +324,23 @@ F src/alter.c cc28ab933ae615b22add0d609794ffb6596b42ea
 F src/analyze.c 37fedc80ac966ce1745811746e68e4d8fa64c7fe
 F src/attach.c 771153bd1f4ab0b97a44a13dde2c7e5e1efeba22
 F src/auth.c 5c8e0f37f785f935f589496801edd19840485853
-F src/backup.c 6df65fdd569c901a418887a1a76f82ec35044556
+F src/backup.c 17cd25a36d49330df2bacd2cadf2a61f3b525976
 F src/bitvec.c 3ee4c8b2c94ed3a7377256e18199e6ff5cf33f63
 F src/btmutex.c bc87dd3b062cc26edfe79918de2200ccb8d41e73
-F src/btree.c 6a42efa461cf3a0c33e8755e9d236371ac80d1b3
+F src/btree.c 2551bd3ecb8b8988fb8b23aabadfb214dbc38e46
 F src/btree.h 075c45707c0f8f8af118f739f36df8098a08b7da
 F src/btreeInt.h c18b7d2a3494695133e4e60ee36061d37f45d9a5
-F src/build.c d1fdfd7ab8f5447e494ef15825973bf0719527c6
+F src/build.c 7c3c780b703c09314032c8f6e4e7c1d80241a818
 F src/callback.c 2e76147783386374bf01b227f752c81ec872d730
 F src/complete.c a3634ab1e687055cd002e11b8f43eb75c17da23e
 F src/ctime.c e77f3dc297b4b65c96da78b4ae4272fdfae863d7
-F src/date.c 1cc9fb516ec9932c6fd4d2a0d2f8bc4480145c39
+F src/date.c 95c9a8d00767e7221a8e9a31f4e913fc8029bf6b
 F src/dbstat.c 4f6f7f52b49beb9636ffbd517cfe44a402ba4ad0
 F src/delete.c 4aba4214a377ce8ddde2d2e609777bcc8235200f
-F src/expr.c 9539a6e0941248b63d631757406e089f48bea50c
+F src/expr.c 94b3d94696e86840f2d0d038c638eefde57c2a40
 F src/fault.c 160a0c015b6c2629d3899ed2daf63d75754a32bb
 F src/fkey.c bc4145347595b7770f9a598cff1c848302cf5413
-F src/func.c 61a4114cf7004f10c542cfabbab9f2bcb9033045
+F src/func.c 29cc9acb170ec1387b9f63eb52cd85f8de96c771
 F src/global.c c45ea22aff29334f6a9ec549235ac3357c970015
 F src/hash.c 55b5fb474100cee0b901edaf203e26c970940f36
 F src/hash.h ab34c5c54a9e9de2e790b24349ba5aab3dbb4fd4
@@ -370,8 +370,8 @@ F src/os_setup.h 0dbaea40a7d36bf311613d31342e0b99e2536586
 F src/os_unix.c a9443cdab41d7f3cdf0df3a5aab62fd6e1c9b234
 F src/os_win.c 520f23475f1de530c435d30b67b7b15fe90874b0
 F src/os_win.h 7b073010f1451abe501be30d12f6bc599824944a
-F src/pager.c c368634b888b1c8740aea83b36bfd266f2443e60
-F src/pager.h 031a87445e5e0afc85312d1c380e123ad6c7aeaf
+F src/pager.c 40928c450320da78bb4bd3ae82818f4239e19b7e
+F src/pager.h 966d2769e76ae347c8a32c4165faf6e6cb64546d
 F src/parse.y a7402dff6fe8238795f15ca194e1f1b734d169f4
 F src/pcache.c 5583c8ade4b05075a60ba953ef471d1c1a9c05df
 F src/pcache.h 2cedcd8407eb23017d92790b112186886e179490
@@ -381,11 +381,11 @@ F src/pragma.h 64c78a648751b9f4f297276c4eb7507b14b4628c
 F src/prepare.c 22df6171aec1d86904ed2ad30c2348a5748aa04e
 F src/printf.c a5f0ca08ddede803c241266abb46356ec748ded1
 F src/random.c ba2679f80ec82c4190062d756f22d0c358180696
-F src/resolve.c cca3aa77b95706df5d635a2141a4d1de60ae6598
+F src/resolve.c 0392c6686586b1d4dac9a4106959f03ddd70e9aa
 F src/rowset.c 7b7e7e479212e65b723bf40128c7b36dc5afdfac
 F src/select.c 228eec644a778a31763b3d384d1ee1a5e3cf2349
 F src/shell.c 79dda477be6c96eba6e952a934957ad36f87acc7
-F src/sqlite.h.in e011dcc3942e6ddc8dd7b894e9e6702e4269161e
+F src/sqlite.h.in 0f7580280d1b009b507d8beec1ff0f197ba0cc99
 F src/sqlite3.rc 5121c9e10c3964d5755191c80dd1180c122fc3a8
 F src/sqlite3ext.h 8648034aa702469afb553231677306cc6492a1ae
 F src/sqliteInt.h a1cf00afd6a5666a160e81c7a600418a3b59a8a6
@@ -458,12 +458,12 @@ F src/vdbeblob.c 83d2d266383157b02e2b809350bb197e89d7895b
 F src/vdbemem.c 77d6505956bf4e45c328ab3ebef6b461334cab5d
 F src/vdbesort.c 91fda3909326860382b0ca8aa251e609c6a9d62c
 F src/vdbetrace.c 41963d5376f0349842b5fc4aaaaacd7d9cdc0834
-F src/vtab.c 6fece06fdd50eb2b0673e37e627ce6710e4af5be
+F src/vtab.c 6b3cfaff7e4397739d6b48511e777ca58c6d06d4
 F src/vxworks.h d2988f4e5a61a4dfe82c6524dd3d6e4f2ce3cdb9
 F src/wal.c 02eeecc265f6ffd0597378f5d8ae9070b62a406a
 F src/wal.h 6dd221ed384afdc204bc61e25c23ef7fd5a511f2
 F src/walker.c 0f142b5bd3ed2041fc52d773880748b212e63354
-F src/where.c 0a0b8af3920f88467d93019acdf570c4f4192f26
+F src/where.c f60310d9fa2dd275698f3a768d2c63917353f22d
 F src/whereInt.h 14dd243e13b81cbb0a66063d38b70f93a7d6e613
 F src/wherecode.c c2392fa30bcb0c555a8ae402d646b357ca428ad6
 F src/whereexpr.c 4a8cefc7c122132ac9f3ed125c61629a0e3de094
@@ -807,7 +807,7 @@ F test/fuzz2.test 76dc35b32b6d6f965259508508abce75a6c4d7e1
 F test/fuzz3.test b47377143f0c80f91ed29d722861077ff34415d5
 F test/fuzz_common.tcl a87dfbb88c2a6b08a38e9a070dabd129e617b45b
 F test/fuzz_malloc.test 328f70aaca63adf29b4c6f06505ed0cf57ca7c26
-F test/fuzzcheck.c f01d432d001ba29e7916df8411be7d4e7cddc574
+F test/fuzzcheck.c f2e8102f7829f7b946ebdb6f1a16c6f942d9de66
 F test/fuzzdata1.db 7ee3227bad0e7ccdeb08a9e6822916777073c664
 F test/fuzzdata2.db f03a420d3b822cc82e4f894ca957618fbe9c4973
 F test/fuzzdata3.db c6586d3e3cef0fbc18108f9bb649aa77bfc38aba
@@ -888,7 +888,7 @@ F test/like.test 81632c437a947bf1f7130b19537da6a1a844806a
 F test/like2.test 3b2ee13149ba4a8a60b59756f4e5d345573852da
 F test/like3.test 3608a2042b6f922f900fbfd5d3ce4e7eca57f7c4
 F test/limit.test 0c99a27a87b14c646a9d583c7c89fd06c352663e
-F test/limit2.test 55c9f4d08c89311e00afd75045ee1a2aca205cb4
+F test/limit2.test 40e79f3d95f2077742aa5b7676f58c9af1735d83
 F test/loadext.test d077450695ddb5c1ea3ad7d48e5f5850fe732ad9
 F test/loadext2.test 0408380b57adca04004247179837a18e866a74f7
 F test/lock.test be4fe08118fb988fed741f429b7dd5d65e1c90db
@@ -1109,7 +1109,7 @@ F test/spellfix3.test 0f9efaaa502a0e0a09848028518a6fb096c8ad33
 F test/sqldiff1.test 28cd737cf1b0078b1ec1bbf425e674c47785835e
 F test/sqllimits1.test a74ee2a3740b9f9c2437c246d8fb77354862a142
 F test/sqllog.test 6af6cb0b09f4e44e1917e06ce85be7670302517a
-F test/stat.test ab95d28503d0f6d98ffd8ce204643c9da090ebf1
+F test/stat.test f8f1279ffffabe6df825723af18cc6e0ae70a893
 F test/statfault.test f525a7bf633e50afd027700e9a486090684b1ac1
 F test/stmt.test 64844332db69cf1a735fcb3e11548557fc95392f
 F test/subquery.test d7268d193dd33d5505df965399d3a594e76ae13f
@@ -1455,15 +1455,15 @@ F tool/mkopts.tcl 66ac10d240cc6e86abd37dc908d50382f84ff46e
 F tool/mkpragmatab.tcl f0d5bb266d1d388cf86fce5ba01a891e95d72d41
 F tool/mkspeedsql.tcl a1a334d288f7adfe6e996f2e712becf076745c97
 F tool/mksqlite3c-noext.tcl aa58ea3be311c81821c2cd3209f55e46b07ab656
-F tool/mksqlite3c.tcl 655181fb25f69b3524b30efd0750c43513415216
-F tool/mksqlite3h.tcl cf5cd68028e69a51ed5c76042672664201f0f756
+F tool/mksqlite3c.tcl 63af8429841f08552e6da1d93b3dee4a93ff8071
+F tool/mksqlite3h.tcl e7b106fc4f29fbc258e8ba9b88d9108332ea2ade
 F tool/mksqlite3internalh.tcl eb994013e833359137eb53a55acdad0b5ae1049b
 F tool/mkvsix.tcl 4abcaf3267171b2faadaf9b82a0dfbaa6e98f8b7
 F tool/offsets.c fe4262fdfa378e8f5499a42136d17bf3b98f6091
 F tool/omittest.tcl 34d7ac01fe4fd18e3637f64abe12c40eca0f6b97
 F tool/opcodesum.tcl 740ed206ba8c5040018988129abbf3089a0ccf4a
 F tool/pagesig.c ff0ca355fd3c2398e933da5e22439bbff89b803b
-F tool/replace.tcl 3856f87247dde5418d16dac92fa4060813431778
+F tool/replace.tcl 60f91e8dd06ab81f74d213ecbd9c9945f32ac048
 F tool/restore_jrnl.tcl 6957a34f8f1f0f8285e07536225ec3b292a9024a
 F tool/rollback-test.c 9fc98427d1e23e84429d7e6d07d9094fbdec65a5
 F tool/run-speed-test.sh f95d19fd669b68c4c38b6b475242841d47c66076
@@ -1514,7 +1514,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 1559f4c43473e107f7196eea3ee91c53ede22999
-R f540153e91f079ff5413a490814ad157
+P 3c2f908f5b7312570cfa74afcf4252a857cb5237 d5e98057028abcf7217d0d2b2e29bbbcdf09d6de
+R e29053a139f99493b32e4ec805317c91
 U dan
-Z 1ca41c3e8d4f391ec12438826156b785
+Z c05c70937976285652f33ed04f5e8c75
diff --git a/manifest.uuid b/manifest.uuid
index d136916990..d3debee4c2 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-3c2f908f5b7312570cfa74afcf4252a857cb5237
\ No newline at end of file
+0e927a7e0250a65fd8e97b322cd69e93fadd13f0
\ No newline at end of file
diff --git a/src/backup.c b/src/backup.c
index 3df56e5384..19c3b2a647 100644
--- a/src/backup.c
+++ b/src/backup.c
@@ -777,13 +777,15 @@ int sqlite3BtreeCopyFile(Btree *pTo, Btree *pFrom){
   ** sqlite3_backup_step(), we can guarantee that the copy finishes 
   ** within a single call (unless an error occurs). The assert() statement
   ** checks this assumption - (p->rc) should be set to either SQLITE_DONE 
-  ** or an error code.
-  */
+  ** or an error code.  */
   sqlite3_backup_step(&b, 0x7FFFFFFF);
   assert( b.rc!=SQLITE_OK );
+
   rc = sqlite3_backup_finish(&b);
   if( rc==SQLITE_OK ){
     pTo->pBt->btsFlags &= ~BTS_PAGESIZE_FIXED;
+  }else{
+    sqlite3PagerClearCache(sqlite3BtreePager(b.pDest));
   }
 
   assert( sqlite3BtreeIsInTrans(pTo)==0 );
diff --git a/src/btree.c b/src/btree.c
index 8ea20b9ad0..841aee9463 100644
--- a/src/btree.c
+++ b/src/btree.c
@@ -6385,7 +6385,7 @@ static void insertCell(
 
 /*
 ** A CellArray object contains a cache of pointers and sizes for a
-** consecutive sequence of cells that might be held multiple pages.
+** consecutive sequence of cells that might be held on multiple pages.
 */
 typedef struct CellArray CellArray;
 struct CellArray {
diff --git a/src/build.c b/src/build.c
index 52f6f200f8..b14e6f2fc2 100644
--- a/src/build.c
+++ b/src/build.c
@@ -3037,6 +3037,13 @@ void sqlite3CreateIndex(
     if( zName==0 ){
       goto exit_create_index;
     }
+
+    /* Automatic index names generated from within sqlite3_declare_vtab()
+    ** must have names that are distinct from normal automatic index names.
+    ** The following statement converts "sqlite3_autoindex..." into
+    ** "sqlite3_butoindex..." in order to make the names distinct.
+    ** The "vtab_err.test" test demonstrates the need of this statement. */
+    if( IN_DECLARE_VTAB ) zName[7]++;
   }
 
   /* Check for authorization to create an index.
diff --git a/src/date.c b/src/date.c
index cce16305a3..8b2f2fa717 100644
--- a/src/date.c
+++ b/src/date.c
@@ -1112,7 +1112,6 @@ static void currentTimeFunc(
 ){
   time_t t;
   char *zFormat = (char *)sqlite3_user_data(context);
-  sqlite3 *db;
   sqlite3_int64 iT;
   struct tm *pTm;
   struct tm sNow;
diff --git a/src/expr.c b/src/expr.c
index 70f7326935..a0e4e5cb18 100644
--- a/src/expr.c
+++ b/src/expr.c
@@ -3365,6 +3365,11 @@ int sqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target){
       assert( !ExprHasProperty(pExpr, EP_IntValue) );
       zId = pExpr->u.zToken;
       pDef = sqlite3FindFunction(db, zId, nFarg, enc, 0);
+#ifdef SQLITE_ENABLE_UNKNOWN_SQL_FUNCTION
+      if( pDef==0 && pParse->explain ){
+        pDef = sqlite3FindFunction(db, "unknown", nFarg, enc, 0);
+      }
+#endif
       if( pDef==0 || pDef->xFinalize!=0 ){
         sqlite3ErrorMsg(pParse, "unknown function: %s()", zId);
         break;
diff --git a/src/func.c b/src/func.c
index 78c8806456..79bb1e3dd2 100644
--- a/src/func.c
+++ b/src/func.c
@@ -1316,6 +1316,26 @@ static void trimFunc(
 }
 
 
+#ifdef SQLITE_ENABLE_UNKNOWN_SQL_FUNCTION
+/*
+** The "unknown" function is automatically substituted in place of
+** any unrecognized function name when doing an EXPLAIN or EXPLAIN QUERY PLAN
+** when the SQLITE_ENABLE_UNKNOWN_FUNCTION compile-time option is used.
+** When the "sqlite3" command-line shell is built using this functionality,
+** that allows an EXPLAIN or EXPLAIN QUERY PLAN for complex queries
+** involving application-defined functions to be examined in a generic
+** sqlite3 shell.
+*/
+static void unknownFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  /* no-op */
+}
+#endif /*SQLITE_ENABLE_UNKNOWN_SQL_FUNCTION*/
+
+
 /* IMP: R-25361-16150 This function is omitted from SQLite by default. It
 ** is only available if the SQLITE_SOUNDEX compile-time option is used
 ** when SQLite is built.
@@ -1786,13 +1806,16 @@ void sqlite3RegisterBuiltinFunctions(void){
     AGGREGATE(group_concat,      2, 0, 0, groupConcatStep, groupConcatFinalize),
   
     LIKEFUNC(glob, 2, &globInfo, SQLITE_FUNC_LIKE|SQLITE_FUNC_CASE),
-  #ifdef SQLITE_CASE_SENSITIVE_LIKE
+#ifdef SQLITE_CASE_SENSITIVE_LIKE
     LIKEFUNC(like, 2, &likeInfoAlt, SQLITE_FUNC_LIKE|SQLITE_FUNC_CASE),
     LIKEFUNC(like, 3, &likeInfoAlt, SQLITE_FUNC_LIKE|SQLITE_FUNC_CASE),
-  #else
+#else
     LIKEFUNC(like, 2, &likeInfoNorm, SQLITE_FUNC_LIKE),
     LIKEFUNC(like, 3, &likeInfoNorm, SQLITE_FUNC_LIKE),
-  #endif
+#endif
+#ifdef SQLITE_ENABLE_UNKNOWN_SQL_FUNCTION
+    FUNCTION(unknown,           -1, 0, 0, unknownFunc      ),
+#endif
     FUNCTION(coalesce,           1, 0, 0, 0                ),
     FUNCTION(coalesce,           0, 0, 0, 0                ),
     FUNCTION2(coalesce,         -1, 0, 0, noopFunc,  SQLITE_FUNC_COALESCE),
diff --git a/src/pager.c b/src/pager.c
index 1ae831d148..cd8d1204b3 100644
--- a/src/pager.c
+++ b/src/pager.c
@@ -7157,6 +7157,17 @@ sqlite3_backup **sqlite3PagerBackupPtr(Pager *pPager){
   return &pPager->pBackup;
 }
 
+#ifndef SQLITE_OMIT_VACUUM
+/*
+** Unless this is an in-memory or temporary database, clear the pager cache.
+*/
+void sqlite3PagerClearCache(Pager *pPager){
+  assert( MEMDB==0 || pPager->tempFile );
+  if( pPager->tempFile==0 ) pager_reset(pPager);
+}
+#endif
+
+
 #ifndef SQLITE_OMIT_WAL
 /*
 ** This function is called when the user invokes "PRAGMA wal_checkpoint",
@@ -7382,5 +7393,4 @@ int sqlite3PagerWalFramesize(Pager *pPager){
 }
 #endif
 
-
 #endif /* SQLITE_OMIT_DISKIO */
diff --git a/src/pager.h b/src/pager.h
index af71d745a8..1046670912 100644
--- a/src/pager.h
+++ b/src/pager.h
@@ -203,6 +203,7 @@ const char *sqlite3PagerJournalname(Pager*);
 void *sqlite3PagerTempSpace(Pager*);
 int sqlite3PagerIsMemdb(Pager*);
 void sqlite3PagerCacheStat(Pager *, int, int, int *);
+void sqlite3PagerClearCache(Pager*);
 int sqlite3SectorSize(sqlite3_file *);
 
 /* Functions used to truncate the database file. */
diff --git a/src/resolve.c b/src/resolve.c
index 77ce37f6d7..8ae7f0919c 100644
--- a/src/resolve.c
+++ b/src/resolve.c
@@ -718,7 +718,11 @@ static int resolveExprStep(Walker *pWalker, Expr *pExpr){
         sqlite3ErrorMsg(pParse, "misuse of aggregate function %.*s()", nId,zId);
         pNC->nErr++;
         is_agg = 0;
-      }else if( no_such_func && pParse->db->init.busy==0 ){
+      }else if( no_such_func && pParse->db->init.busy==0
+#ifdef SQLITE_ENABLE_UNKNOWN_SQL_FUNCTION
+                && pParse->explain==0
+#endif
+      ){
         sqlite3ErrorMsg(pParse, "no such function: %.*s", nId, zId);
         pNC->nErr++;
       }else if( wrong_num_args ){
diff --git a/src/sqlite.h.in b/src/sqlite.h.in
index f60ccaf55c..1ee39b6799 100644
--- a/src/sqlite.h.in
+++ b/src/sqlite.h.in
@@ -1959,7 +1959,7 @@ struct sqlite3_mem_methods {
 ** C-API [sqlite3_load_extension()] and the SQL function [load_extension()].
 ** There should be two additional arguments.
 ** When the first argument to this interface is 1, then only the C-API is
-** enabled and the SQL function remains disabled.  If the first argment to
+** enabled and the SQL function remains disabled.  If the first argument to
 ** this interface is 0, then both the C-API and the SQL function are disabled.
 ** If the first argument is -1, then no changes are made to state of either the
 ** C-API or the SQL function.
@@ -5537,7 +5537,7 @@ SQLITE_DEPRECATED void sqlite3_soft_heap_limit(int N);
 ** column exists.  ^The sqlite3_table_column_metadata() interface returns
 ** SQLITE_ERROR and if the specified column does not exist.
 ** ^If the column-name parameter to sqlite3_table_column_metadata() is a
-** NULL pointer, then this routine simply checks for the existance of the
+** NULL pointer, then this routine simply checks for the existence of the
 ** table and returns SQLITE_OK if the table exists and SQLITE_ERROR if it
 ** does not.
 **
@@ -8132,7 +8132,7 @@ int sqlite3_db_cacheflush(sqlite3*);
 ** ^The second parameter to the preupdate callback is a pointer to
 ** the [database connection] that registered the preupdate hook.
 ** ^The third parameter to the preupdate callback is one of the constants
-** [SQLITE_INSERT], [SQLITE_DELETE], or [SQLITE_UPDATE] to indentify the
+** [SQLITE_INSERT], [SQLITE_DELETE], or [SQLITE_UPDATE] to identify the
 ** kind of update operation that is about to occur.
 ** ^(The fourth parameter to the preupdate callback is the name of the
 ** database within the database connection that is being modified.  This
diff --git a/src/vtab.c b/src/vtab.c
index f37eb261aa..45c5e79abd 100644
--- a/src/vtab.c
+++ b/src/vtab.c
@@ -807,7 +807,7 @@ int sqlite3VtabCallDestroy(sqlite3 *db, int iDb, const char *zTab){
   Table *pTab;
 
   pTab = sqlite3FindTable(db, zTab, db->aDb[iDb].zName);
-  if( ALWAYS(pTab!=0 && pTab->pVTable!=0) ){
+  if( pTab!=0 && ALWAYS(pTab->pVTable!=0) ){
     VTable *p;
     int (*xDestroy)(sqlite3_vtab *);
     for(p=pTab->pVTable; p; p=p->pNext){
diff --git a/src/where.c b/src/where.c
index 877ca72ad1..577a1147cb 100644
--- a/src/where.c
+++ b/src/where.c
@@ -4077,7 +4077,7 @@ static int wherePathSolver(WhereInfo *pWInfo, LogEst nRowEst){
       pWInfo->revMask = pFrom->revLoop;
       if( pWInfo->nOBSat<=0 ){
         pWInfo->nOBSat = 0;
-        if( nLoop>0 ){
+        if( nLoop>0 && (pFrom->aLoop[nLoop-1]->wsFlags & WHERE_ONEROW)==0 ){
           Bitmask m = 0;
           int rc = wherePathSatisfiesOrderBy(pWInfo, pWInfo->pOrderBy, pFrom,
                       WHERE_ORDERBY_LIMIT, nLoop-1, pFrom->aLoop[nLoop-1], &m);
diff --git a/test/fuzzcheck.c b/test/fuzzcheck.c
index 1d11b2986f..fec65881ce 100644
--- a/test/fuzzcheck.c
+++ b/test/fuzzcheck.c
@@ -782,23 +782,23 @@ static void showHelp(void){
 "Read databases and SQL scripts from SOURCE-DB and execute each script against\n"
 "each database, checking for crashes and memory leaks.\n"
 "Options:\n"
-"  --cell-size-check     Set the PRAGMA cell_size_check=ON\n"
-"  --dbid N              Use only the database where dbid=N\n"
-"  --export-db DIR       Write databases to files(s) in DIR. Works with --dbid\n"
-"  --export-sql DIR      Write SQL to file(s) in DIR. Also works with --sqlid\n"
-"  --help                Show this help text\n"
-"  -q|--quiet            Reduced output\n"
-"  --limit-mem N         Limit memory used by test SQLite instance to N bytes\n"
-"  --limit-vdbe          Panic if an sync SQL runs for more than 100,000 cycles\n"
-"  --load-sql ARGS...    Load SQL scripts fro files into SOURCE-DB\n"
-"  --load-db ARGS...     Load template databases from files into SOURCE_DB\n"
-"  -m TEXT               Add a description to the database\n"
-"  --native-vfs          Use the native VFS for initially empty database files\n"
-"  --rebuild             Rebuild and vacuum the database file\n"
-"  --result-trace        Show the results of each SQL command\n"
-"  --sqlid N             Use only SQL where sqlid=N\n"
-"  --timeout N           Abort if any single test case needs more than N seconds\n"
-"  -v|--verbose          Increased output.  Repeat for more output.\n"
+"  --cell-size-check    Set the PRAGMA cell_size_check=ON\n"
+"  --dbid N             Use only the database where dbid=N\n"
+"  --export-db DIR      Write databases to files(s) in DIR. Works with --dbid\n"
+"  --export-sql DIR     Write SQL to file(s) in DIR. Also works with --sqlid\n"
+"  --help               Show this help text\n"
+"  -q|--quiet           Reduced output\n"
+"  --limit-mem N        Limit memory used by test SQLite instance to N bytes\n"
+"  --limit-vdbe         Panic if any test runs for more than 100,000 cycles\n"
+"  --load-sql ARGS...   Load SQL scripts fro files into SOURCE-DB\n"
+"  --load-db ARGS...    Load template databases from files into SOURCE_DB\n"
+"  -m TEXT              Add a description to the database\n"
+"  --native-vfs         Use the native VFS for initially empty database files\n"
+"  --rebuild            Rebuild and vacuum the database file\n"
+"  --result-trace       Show the results of each SQL command\n"
+"  --sqlid N            Use only SQL where sqlid=N\n"
+"  --timeout N          Abort if any single test needs more than N seconds\n"
+"  -v|--verbose         Increased output.  Repeat for more output.\n"
   );
 }
 
diff --git a/test/limit2.test b/test/limit2.test
index f415f3263b..fb4c89644f 100644
--- a/test/limit2.test
+++ b/test/limit2.test
@@ -77,6 +77,28 @@ do_test limit2-120.3 {
   expr {$fast_count < 0.02*$slow_count}
 } {1}
 
+# Bug report against the new ORDER BY LIMIT optimization just prior to
+# release.  (Unreleased so there is no ticket).
+#
+# Make sure the optimization is not applied if the inner loop can only
+# provide a single row of output.
+#
+do_execsql_test limit2-200 {
+  CREATE TABLE t200(a, b);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<1000)
+    INSERT INTO t200(a,b) SELECT x, x FROM c;
+  CREATE TABLE t201(x INTEGER PRIMARY KEY, y);
+  INSERT INTO t201(x,y) VALUES(2,12345);
+
+  SELECT *, '|' FROM t200, t201 WHERE x=b ORDER BY y LIMIT 3;
+} {2 2 2 12345 |}
+do_execsql_test limit2-210 {
+  SELECT *, '|' FROM t200 LEFT JOIN t201 ON x=b ORDER BY y LIMIT 3;
+} {1 1 {} {} | 3 3 {} {} | 4 4 {} {} |}
+
+
+
+
 
 
 finish_test
diff --git a/test/stat.test b/test/stat.test
index 6a87a629b9..66ca5e2f2b 100644
--- a/test/stat.test
+++ b/test/stat.test
@@ -34,12 +34,25 @@ register_dbstat_vtab db
 do_execsql_test stat-0.0 {
   PRAGMA table_info(dbstat);
 } {/0 name TEXT .* 1 path TEXT .* 9 pgsize INTEGER/}
+
+# Attempts to drop an eponymous virtual table are a no-op.
 do_execsql_test stat-0.1 {
+  DROP TABLE dbstat;
+  PRAGMA table_info=dbstat;
+} {/0 name TEXT .* 1 path TEXT .* 9 pgsize INTEGER/}
+
+db close
+forcedelete test.db
+sqlite3 db test.db
+db func a_string a_string
+register_dbstat_vtab db
+do_execsql_test stat-0.2 {
   PRAGMA auto_vacuum = OFF;
   CREATE VIRTUAL TABLE temp.stat USING dbstat;
   SELECT * FROM stat;
 } {}
 
+
 if {[wal_is_capable]} {
   do_execsql_test stat-0.1 {
     PRAGMA journal_mode = WAL;
diff --git a/tool/mksqlite3c.tcl b/tool/mksqlite3c.tcl
index c5f765ed1c..7e8558d2ab 100644
--- a/tool/mksqlite3c.tcl
+++ b/tool/mksqlite3c.tcl
@@ -112,6 +112,7 @@ foreach hdr {
    pragma.h
    rtree.h
    sqlite3session.h
+   sqlite3ext.h
    sqlite3.h
    sqlite3ext.h
    sqlite3rbu.h
@@ -231,7 +232,7 @@ proc copy_file {filename} {
           if {[lsearch -exact $cdecllist $funcname] >= 0} {
             append line SQLITE_CDECL
           } else {
-            append line SQLITE_APICALL
+            append line SQLITE_STDCALL
           }
           append line " " $funcname $rest
           puts $out $line
diff --git a/tool/mksqlite3h.tcl b/tool/mksqlite3h.tcl
index 9a4e7d2985..1af6d75730 100644
--- a/tool/mksqlite3h.tcl
+++ b/tool/mksqlite3h.tcl
@@ -21,8 +21,6 @@
 #      formatted as an integer (e.g. "3006017").
 #   5) Replaces the string --SOURCE-ID-- with the date and time and sha1 
 #      hash of the fossil-scm manifest for the source tree.
-#   6) Adds the SQLITE_CALLBACK calling convention macro in front of all
-#      callback declarations.
 #
 # This script outputs to stdout.
 #
@@ -122,14 +120,11 @@ foreach file $filelist {
         if {[lsearch -exact $cdecllist $funcname] >= 0} {
           append line SQLITE_CDECL
         } else {
-          append line SQLITE_APICALL
+          append line SQLITE_STDCALL
         }
         append line " " $funcname $rest
       }
     }
-    set line [string map [list (*sqlite3_syscall_ptr) \
-        "(SQLITE_SYSAPI *sqlite3_syscall_ptr)"] $line]
-    regsub {\(\*} $line {(SQLITE_CALLBACK *} line
     puts $line
   }
   close $in
diff --git a/tool/replace.tcl b/tool/replace.tcl
index 1ecc6dc7b5..5a1ac5983c 100644
--- a/tool/replace.tcl
+++ b/tool/replace.tcl
@@ -4,6 +4,8 @@
 # only lines successfully modified with a regular
 # expression.
 #
+fconfigure stdout -translation binary -encoding binary
+fconfigure stderr -translation binary -encoding binary
 set mode [string tolower [lindex $argv 0]]
 set from [lindex $argv 1]
 set to [lindex $argv 2]