diff --git a/Makefile.in b/Makefile.in
index 3d6e0f250d..4ac06938fd 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -255,6 +255,7 @@ SRC = \
   $(TOP)/src/pcache.h \
   $(TOP)/src/pcache1.c \
   $(TOP)/src/pragma.c \
+  $(TOP)/src/pragma.h \
   $(TOP)/src/prepare.c \
   $(TOP)/src/printf.c \
   $(TOP)/src/random.c \
@@ -286,6 +287,7 @@ SRC = \
   $(TOP)/src/vdbetrace.c \
   $(TOP)/src/vdbeInt.h \
   $(TOP)/src/vtab.c \
+  $(TOP)/src/vxworks.h \
   $(TOP)/src/wal.c \
   $(TOP)/src/wal.h \
   $(TOP)/src/walker.c \
@@ -474,12 +476,14 @@ HDR = \
    $(TOP)/src/pager.h \
    $(TOP)/src/pcache.h \
    parse.h  \
+   $(TOP)/src/pragma.h \
    sqlite3.h  \
    $(TOP)/src/sqlite3ext.h \
    $(TOP)/src/sqliteInt.h  \
    $(TOP)/src/sqliteLimit.h \
    $(TOP)/src/vdbe.h \
    $(TOP)/src/vdbeInt.h \
+   $(TOP)/src/vxworks.h \
    $(TOP)/src/whereInt.h \
    config.h
 
@@ -536,11 +540,19 @@ mptester$(EXE):	sqlite3.c $(TOP)/mptest/mptest.c
 	$(LTLINK) -o $@ -I. $(TOP)/mptest/mptest.c sqlite3.c \
 		$(TLIBS) -rpath "$(libdir)"
 
+MPTEST1=./mptester$(EXE) mptest.db $(TOP)/mptest/crash01.test --repeat 20
+MPTEST2=./mptester$(EXE) mptest.db $(TOP)/mptest/multiwrite01.test --repeat 20
 mptest:	mptester$(EXE)
-	rm -f mptest1.db
-	./mptester$(EXE) mptest1.db $(TOP)/mptest/crash01.test
-	rm -f mptest2.db
-	./mptester$(EXE) mptest2.db $(TOP)/mptest/multiwrite01.test
+	rm -f mptest.db
+	$(MPTEST1) --journalmode DELETE
+	$(MPTEST2) --journalmode WAL
+	$(MPTEST1) --journalmode WAL
+	$(MPTEST2) --journalmode PERSIST
+	$(MPTEST1) --journalmode PERSIST
+	$(MPTEST2) --journalmode TRUNCATE
+	$(MPTEST1) --journalmode TRUNCATE
+	$(MPTEST2) --journalmode DELETE
+
 
 # This target creates a directory named "tsrc" and fills it with
 # copies of all of the C source code and header files needed to
@@ -995,7 +1007,7 @@ LogEst$(TEXE):	$(TOP)/tool/logest.c sqlite3.h
 wordcount$(TEXE):	$(TOP)/test/wordcount.c sqlite3.c
 	$(LTLINK) -o $@ $(TOP)/test/wordcount.c sqlite3.c $(TLIBS)
 
-speedtest1$(TEXE):	$(TOP)/test/wordcount.c sqlite3.lo
+speedtest1$(TEXE):	$(TOP)/test/speedtest1.c sqlite3.lo
 	$(LTLINK) -o $@ $(TOP)/test/speedtest1.c sqlite3.lo $(TLIBS)
 
 # This target will fail if the SQLite amalgamation contains any exported
diff --git a/Makefile.msc b/Makefile.msc
index f480b30058..249e3c284d 100644
--- a/Makefile.msc
+++ b/Makefile.msc
@@ -22,8 +22,22 @@ USE_AMALGAMATION = 1
 USE_FULLWARN = 0
 !ENDIF
 
+# Set this non-0 to use "stdcall" calling convention for the core library
+# and shell executable.
+#
+!IFNDEF USE_STDCALL
+USE_STDCALL = 0
+!ENDIF
+
+# Set this non-0 to have the shell executable link against the core dynamic
+# link library.
+#
+!IFNDEF DYNAMIC_SHELL
+DYNAMIC_SHELL = 0
+!ENDIF
+
 # If necessary, create a list of harmless compiler warnings to disable when
-# compiling the build tools.  For the SQLite source code itself, warnings,
+# compiling the various tools.  For the SQLite source code itself, warnings,
 # if any, will be disabled from within it.
 #
 !IFNDEF NO_WARN
@@ -256,9 +270,9 @@ NSDKLIBPATH = $(NSDKLIBPATH:\\=\)
 # will run on the platform that is doing the build.
 #
 !IF $(USE_FULLWARN)!=0
-BCC = $(NCC) -W4
+BCC = $(NCC) -nologo -W4
 !ELSE
-BCC = $(NCC) -W3
+BCC = $(NCC) -nologo -W3
 !ENDIF
 
 # Check if assembly code listings should be generated for the source
@@ -281,14 +295,106 @@ NLTLIBPATHS = "/LIBPATH:$(NCRTLIBPATH)" "/LIBPATH:$(NSDKLIBPATH)"
 # same unless your are cross-compiling.)
 #
 !IF $(USE_FULLWARN)!=0
-TCC = $(CC) -W4 -DINCLUDE_MSVC_H=1
+TCC = $(CC) -nologo -W4 -DINCLUDE_MSVC_H=1
 !ELSE
-TCC = $(CC) -W3
+TCC = $(CC) -nologo -W3
 !ENDIF
 
 TCC = $(TCC) -DSQLITE_OS_WIN=1 -I. -I$(TOP) -I$(TOP)\src -fp:precise
 RCC = $(RC) -DSQLITE_OS_WIN=1 -I$(TOP) -I$(TOP)\src
 
+# Check if we want to use the "stdcall" calling convention when compiling.
+# This is not supported by the compilers for non-x86 platforms.  It should
+# also be noted here that building any target with these "stdcall" options
+# will most likely fail if the Tcl library is also required.  This is due
+# to how the Tcl library functions are declared and exported (i.e. without
+# an explicit calling convention, which results in "cdecl").
+#
+!IF $(USE_STDCALL)!=0
+!IF "$(PLATFORM)"=="x86"
+CORE_CCONV_OPTS = -Gz -DSQLITE_CDECL=__cdecl
+SHELL_CCONV_OPTS = -Gz -DSQLITE_CDECL=__cdecl
+!ELSE
+!IFNDEF PLATFORM
+CORE_CCONV_OPTS = -Gz -DSQLITE_CDECL=__cdecl
+SHELL_CCONV_OPTS = -Gz -DSQLITE_CDECL=__cdecl
+!ELSE
+CORE_CCONV_OPTS =
+SHELL_CCONV_OPTS =
+!ENDIF
+!ENDIF
+!ELSE
+CORE_CCONV_OPTS =
+SHELL_CCONV_OPTS =
+!ENDIF
+
+# These are additional compiler options used for the core library.
+#
+!IFNDEF CORE_COMPILE_OPTS
+!IF $(USE_STDCALL)!=0
+CORE_COMPILE_OPTS = $(CORE_CCONV_OPTS) -DSQLITE_API=__declspec(dllexport)
+!ELSE
+CORE_COMPILE_OPTS = $(CORE_CCONV_OPTS)
+!ENDIF
+!ENDIF
+
+# These are the additional targets that the core library should depend on
+# when linking.
+#
+!IFNDEF CORE_LINK_DEP
+!IF $(USE_STDCALL)!=0
+CORE_LINK_DEP =
+!ELSE
+CORE_LINK_DEP = sqlite3.def
+!ENDIF
+!ENDIF
+
+# These are additional linker options used for the core library.
+#
+!IFNDEF CORE_LINK_OPTS
+!IF $(USE_STDCALL)!=0
+CORE_LINK_OPTS =
+!ELSE
+CORE_LINK_OPTS = /DEF:sqlite3.def
+!ENDIF
+!ENDIF
+
+# These are additional compiler options used for the shell executable.
+#
+!IFNDEF SHELL_COMPILE_OPTS
+!IF $(DYNAMIC_SHELL)!=0
+SHELL_COMPILE_OPTS = $(SHELL_CCONV_OPTS) -DSQLITE_API=__declspec(dllimport)
+!ELSE
+SHELL_COMPILE_OPTS = $(SHELL_CCONV_OPTS)
+!ENDIF
+!ENDIF
+
+# This is the core library that the shell executable should depend on.
+#
+!IFNDEF SHELL_CORE_DEP
+!IF $(DYNAMIC_SHELL)!=0
+SHELL_CORE_DEP = sqlite3.dll
+!ELSE
+SHELL_CORE_DEP = libsqlite3.lib
+!ENDIF
+!ENDIF
+
+# This is the core library that the shell executable should link with.
+#
+!IFNDEF SHELL_CORE_LIB
+!IF $(DYNAMIC_SHELL)!=0
+SHELL_CORE_LIB = sqlite3.lib
+!ELSE
+SHELL_CORE_LIB = libsqlite3.lib
+!ENDIF
+!ENDIF
+
+# These are additional linker options used for the shell executable.
+#
+!IFNDEF SHELL_LINK_OPTS
+SHELL_LINK_OPTS = $(SHELL_CORE_LIB)
+!ENDIF
+
 # Check if assembly code listings should be generated for the source
 # code files to be compiled.
 #
@@ -587,8 +693,11 @@ LTLINK = $(LTLINK) rpcrt4.lib
 # set this for you.  Otherwise, the linker will attempt
 # to deduce the binary type based on the object files.
 !IFDEF PLATFORM
-LTLINKOPTS = /MACHINE:$(PLATFORM)
-LTLIBOPTS = /MACHINE:$(PLATFORM)
+LTLINKOPTS = /NOLOGO /MACHINE:$(PLATFORM)
+LTLIBOPTS = /NOLOGO /MACHINE:$(PLATFORM)
+!ELSE
+LTLINKOPTS = /NOLOGO
+LTLIBOPTS = /NOLOGO
 !ENDIF
 
 # When compiling for use in the WinRT environment, the following
@@ -773,6 +882,7 @@ SRC2 = \
   $(TOP)\src\pcache.h \
   $(TOP)\src\pcache1.c \
   $(TOP)\src\pragma.c \
+  $(TOP)\src\pragma.h \
   $(TOP)\src\prepare.c \
   $(TOP)\src\printf.c \
   $(TOP)\src\random.c \
@@ -804,6 +914,7 @@ SRC2 = \
   $(TOP)\src\vdbetrace.c \
   $(TOP)\src\vdbeInt.h \
   $(TOP)\src\vtab.c \
+  $(TOP)\src\vxworks.h \
   $(TOP)\src\wal.c \
   $(TOP)\src\wal.h \
   $(TOP)\src\walker.c \
@@ -996,12 +1107,14 @@ HDR = \
    $(TOP)\src\pager.h \
    $(TOP)\src\pcache.h \
    parse.h \
+   $(TOP)\src\pragma.h \
    sqlite3.h \
    $(TOP)\src\sqlite3ext.h \
    $(TOP)\src\sqliteInt.h \
    $(TOP)\src\sqliteLimit.h \
    $(TOP)\src\vdbe.h \
    $(TOP)\src\vdbeInt.h \
+   $(TOP)\src\vxworks.h \
    $(TOP)\src\whereInt.h
 
 # Header files used by extensions
@@ -1037,13 +1150,13 @@ libsqlite3.lib:	$(LIBOBJ)
 libtclsqlite3.lib:	tclsqlite.lo libsqlite3.lib
 	$(LTLIB) $(LTLIBOPTS) $(LTLIBPATHS) /OUT:$@ tclsqlite.lo libsqlite3.lib $(LIBTCL:tcl=tclstub) $(TLIBS)
 
-sqlite3.exe:	$(TOP)\src\shell.c libsqlite3.lib $(LIBRESOBJS) sqlite3.h
-	$(LTLINK) $(READLINE_FLAGS) $(TOP)\src\shell.c \
-		/link $(LTLINKOPTS) $(LTLIBPATHS) libsqlite3.lib $(LIBRESOBJS) $(LIBREADLINE) $(LTLIBS) $(TLIBS)
+sqlite3.exe:	$(TOP)\src\shell.c $(SHELL_CORE_DEP) $(LIBRESOBJS) sqlite3.h
+	$(LTLINK) $(SHELL_COMPILE_OPTS) $(READLINE_FLAGS) $(TOP)\src\shell.c \
+		/link /pdb:sqlite3sh.pdb $(LTLINKOPTS) $(SHELL_LINK_OPTS) $(LTLIBPATHS) $(LIBRESOBJS) $(LIBREADLINE) $(LTLIBS) $(TLIBS)
 
-mptester.exe:	$(TOP)\mptest\mptest.c libsqlite3.lib $(LIBRESOBJS) sqlite3.h
-	$(LTLINK) $(TOP)\mptest\mptest.c \
-		/link $(LTLINKOPTS) $(LTLIBPATHS) libsqlite3.lib $(LIBRESOBJS) $(LIBREADLINE) $(LTLIBS) $(TLIBS)
+mptester.exe:	$(TOP)\mptest\mptest.c $(SHELL_CORE_DEP) $(LIBRESOBJS) sqlite3.h
+	$(LTLINK) $(SHELL_COMPILE_OPTS) $(TOP)\mptest\mptest.c \
+		/link $(LTLINKOPTS) $(LTLIBPATHS) $(SHELL_LINK_OPTS) $(LIBRESOBJS) $(LIBREADLINE) $(LTLIBS) $(TLIBS)
 
 # This target creates a directory named "tsrc" and fills it with
 # copies of all of the C source code and header files needed to
@@ -1052,14 +1165,14 @@ mptester.exe:	$(TOP)\mptest\mptest.c libsqlite3.lib $(LIBRESOBJS) sqlite3.h
 # all that automatic generation.
 #
 .target_source:	$(SRC) $(TOP)\tool\vdbe-compress.tcl
-	-rmdir /S/Q tsrc
+	-rmdir /Q/S tsrc 2>NUL
 	-mkdir tsrc
 	for %i in ($(SRC1)) do copy /Y %i tsrc
 	for %i in ($(SRC2)) do copy /Y %i tsrc
 	for %i in ($(SRC3)) do copy /Y %i tsrc
 	for %i in ($(SRC4)) do copy /Y %i tsrc
 	for %i in ($(SRC5)) do copy /Y %i tsrc
-	del /Q tsrc\sqlite.h.in tsrc\parse.y
+	del /Q tsrc\sqlite.h.in tsrc\parse.y 2>NUL
 	$(TCLSH_CMD) $(TOP)\tool\vdbe-compress.tcl $(OPTS) < tsrc\vdbe.c > vdbe.new
 	move vdbe.new tsrc\vdbe.c
 	echo > .target_source
@@ -1084,7 +1197,7 @@ SQLITE3C = sqlite3.c
 # Rule to build the amalgamation
 #
 sqlite3.lo:	$(SQLITE3C)
-	$(LTCOMPILE) -c $(SQLITE3C)
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(SQLITE3C)
 
 # Rules to build the LEMON compiler generator
 #
@@ -1102,10 +1215,10 @@ lemon.exe:	$(TOP)\tool\lemon.c lempar.c
 #     opcodes.lo
 #
 parse.lo:	parse.c $(HDR)
-	$(LTCOMPILE) -c parse.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c parse.c
 
 opcodes.lo:	opcodes.c
-	$(LTCOMPILE) -c opcodes.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c opcodes.c
 
 # Rule to build the Win32 resources object file.
 #
@@ -1123,223 +1236,223 @@ $(LIBRESOBJS):	$(TOP)\src\sqlite3.rc $(HDR)
 # Rules to build individual *.lo files from files in the src directory.
 #
 alter.lo:	$(TOP)\src\alter.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\alter.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\alter.c
 
 analyze.lo:	$(TOP)\src\analyze.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\analyze.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\analyze.c
 
 attach.lo:	$(TOP)\src\attach.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\attach.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\attach.c
 
 auth.lo:	$(TOP)\src\auth.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\auth.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\auth.c
 
 backup.lo:	$(TOP)\src\backup.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\backup.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\backup.c
 
 bitvec.lo:	$(TOP)\src\bitvec.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\bitvec.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\bitvec.c
 
 btmutex.lo:	$(TOP)\src\btmutex.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\btmutex.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\btmutex.c
 
 btree.lo:	$(TOP)\src\btree.c $(HDR) $(TOP)\src\pager.h
-	$(LTCOMPILE) -c $(TOP)\src\btree.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\btree.c
 
 build.lo:	$(TOP)\src\build.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\build.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\build.c
 
 callback.lo:	$(TOP)\src\callback.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\callback.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\callback.c
 
 complete.lo:	$(TOP)\src\complete.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\complete.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\complete.c
 
 ctime.lo:	$(TOP)\src\ctime.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\ctime.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\ctime.c
 
 date.lo:	$(TOP)\src\date.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\date.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\date.c
 
 delete.lo:	$(TOP)\src\delete.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\delete.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\delete.c
 
 expr.lo:	$(TOP)\src\expr.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\expr.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\expr.c
 
 fault.lo:	$(TOP)\src\fault.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\fault.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\fault.c
 
 fkey.lo:	$(TOP)\src\fkey.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\fkey.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\fkey.c
 
 func.lo:	$(TOP)\src\func.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\func.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\func.c
 
 global.lo:	$(TOP)\src\global.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\global.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\global.c
 
 hash.lo:	$(TOP)\src\hash.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\hash.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\hash.c
 
 insert.lo:	$(TOP)\src\insert.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\insert.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\insert.c
 
 journal.lo:	$(TOP)\src\journal.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\journal.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\journal.c
 
 legacy.lo:	$(TOP)\src\legacy.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\legacy.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\legacy.c
 
 loadext.lo:	$(TOP)\src\loadext.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\loadext.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\loadext.c
 
 main.lo:	$(TOP)\src\main.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\main.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\main.c
 
 malloc.lo:	$(TOP)\src\malloc.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\malloc.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\malloc.c
 
 mem0.lo:	$(TOP)\src\mem0.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\mem0.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\mem0.c
 
 mem1.lo:	$(TOP)\src\mem1.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\mem1.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\mem1.c
 
 mem2.lo:	$(TOP)\src\mem2.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\mem2.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\mem2.c
 
 mem3.lo:	$(TOP)\src\mem3.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\mem3.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\mem3.c
 
 mem5.lo:	$(TOP)\src\mem5.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\mem5.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\mem5.c
 
 memjournal.lo:	$(TOP)\src\memjournal.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\memjournal.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\memjournal.c
 
 mutex.lo:	$(TOP)\src\mutex.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\mutex.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\mutex.c
 
 mutex_noop.lo:	$(TOP)\src\mutex_noop.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\mutex_noop.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\mutex_noop.c
 
 mutex_unix.lo:	$(TOP)\src\mutex_unix.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\mutex_unix.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\mutex_unix.c
 
 mutex_w32.lo:	$(TOP)\src\mutex_w32.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\mutex_w32.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\mutex_w32.c
 
 notify.lo:	$(TOP)\src\notify.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\notify.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\notify.c
 
 pager.lo:	$(TOP)\src\pager.c $(HDR) $(TOP)\src\pager.h
-	$(LTCOMPILE) -c $(TOP)\src\pager.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\pager.c
 
 pcache.lo:	$(TOP)\src\pcache.c $(HDR) $(TOP)\src\pcache.h
-	$(LTCOMPILE) -c $(TOP)\src\pcache.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\pcache.c
 
 pcache1.lo:	$(TOP)\src\pcache1.c $(HDR) $(TOP)\src\pcache.h
-	$(LTCOMPILE) -c $(TOP)\src\pcache1.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\pcache1.c
 
 os.lo:	$(TOP)\src\os.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\os.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\os.c
 
 os_unix.lo:	$(TOP)\src\os_unix.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\os_unix.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\os_unix.c
 
 os_win.lo:	$(TOP)\src\os_win.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\os_win.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\os_win.c
 
 pragma.lo:	$(TOP)\src\pragma.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\pragma.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\pragma.c
 
 prepare.lo:	$(TOP)\src\prepare.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\prepare.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\prepare.c
 
 printf.lo:	$(TOP)\src\printf.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\printf.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\printf.c
 
 random.lo:	$(TOP)\src\random.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\random.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\random.c
 
 resolve.lo:	$(TOP)\src\resolve.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\resolve.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\resolve.c
 
 rowset.lo:	$(TOP)\src\rowset.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\rowset.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\rowset.c
 
 select.lo:	$(TOP)\src\select.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\select.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\select.c
 
 status.lo:	$(TOP)\src\status.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\status.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\status.c
 
 table.lo:	$(TOP)\src\table.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\table.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\table.c
 
 threads.lo:	$(TOP)\src\threads.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\threads.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\threads.c
 
 tokenize.lo:	$(TOP)\src\tokenize.c keywordhash.h $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\tokenize.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\tokenize.c
 
 trigger.lo:	$(TOP)\src\trigger.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\trigger.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\trigger.c
 
 update.lo:	$(TOP)\src\update.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\update.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\update.c
 
 utf.lo:	$(TOP)\src\utf.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\utf.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\utf.c
 
 util.lo:	$(TOP)\src\util.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\util.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\util.c
 
 vacuum.lo:	$(TOP)\src\vacuum.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\vacuum.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\vacuum.c
 
 vdbe.lo:	$(TOP)\src\vdbe.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\vdbe.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\vdbe.c
 
 vdbeapi.lo:	$(TOP)\src\vdbeapi.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\vdbeapi.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\vdbeapi.c
 
 vdbeaux.lo:	$(TOP)\src\vdbeaux.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\vdbeaux.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\vdbeaux.c
 
 vdbeblob.lo:	$(TOP)\src\vdbeblob.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\vdbeblob.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\vdbeblob.c
 
 vdbemem.lo:	$(TOP)\src\vdbemem.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\vdbemem.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\vdbemem.c
 
 vdbesort.lo:	$(TOP)\src\vdbesort.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\vdbesort.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\vdbesort.c
 
 vdbetrace.lo:	$(TOP)\src\vdbetrace.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\vdbetrace.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\vdbetrace.c
 
 vtab.lo:	$(TOP)\src\vtab.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\vtab.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\vtab.c
 
 wal.lo:	$(TOP)\src\wal.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\wal.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\wal.c
 
 walker.lo:	$(TOP)\src\walker.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\walker.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\walker.c
 
 where.lo:	$(TOP)\src\where.c $(HDR)
-	$(LTCOMPILE) -c $(TOP)\src\where.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\where.c
 
 tclsqlite.lo:	$(TOP)\src\tclsqlite.c $(HDR)
-	$(LTCOMPILE) -DUSE_TCL_STUBS=1 -DBUILD_sqlite -I$(TCLINCDIR) -c $(TOP)\src\tclsqlite.c
+	$(LTCOMPILE) $(NO_WARN) -DUSE_TCL_STUBS=1 -DBUILD_sqlite -I$(TCLINCDIR) -c $(TOP)\src\tclsqlite.c
 
 tclsqlite-shell.lo:	$(TOP)\src\tclsqlite.c $(HDR)
-	$(LTCOMPILE) -DTCLSH=1 -DBUILD_sqlite -I$(TCLINCDIR) -c $(TOP)\src\tclsqlite.c
+	$(LTCOMPILE) $(NO_WARN) -DTCLSH=1 -DBUILD_sqlite -I$(TCLINCDIR) -c $(TOP)\src\tclsqlite.c
 
-tclsqlite3.exe:	tclsqlite-shell.lo libsqlite3.lib $(LIBRESOBJS)
-	$(LD) $(LDFLAGS) $(LTLINKOPTS) $(LTLIBPATHS) /OUT:$@ libsqlite3.lib tclsqlite-shell.lo $(LIBRESOBJS) $(LTLIBS) $(TLIBS)
+tclsqlite3.exe:	tclsqlite-shell.lo $(SQLITE3C) $(LIBRESOBJS)
+	$(LTLINK) $(SQLITE3C) /link $(LTLINKOPTS) $(LTLIBPATHS) /OUT:$@ tclsqlite-shell.lo $(LIBRESOBJS) $(LTLIBS) $(TLIBS)
 
 # Rules to build opcodes.c and opcodes.h
 #
@@ -1354,7 +1467,7 @@ opcodes.h:	parse.h $(TOP)\src\vdbe.c $(TOP)\mkopcodeh.awk
 parse.h:	parse.c
 
 parse.c:	$(TOP)\src\parse.y lemon.exe $(TOP)\addopcodes.awk
-	del /Q parse.y parse.h parse.h.temp
+	del /Q parse.y parse.h parse.h.temp 2>NUL
 	copy $(TOP)\src\parse.y .
 	.\lemon.exe $(REQ_FEATURE_FLAGS) $(OPT_FEATURE_FLAGS) $(OPTS) parse.y
 	move parse.h parse.h.temp
@@ -1375,67 +1488,67 @@ keywordhash.h:	$(TOP)\tool\mkkeywordhash.c mkkeywordhash.exe
 # Rules to build the extension objects.
 #
 icu.lo:	$(TOP)\ext\icu\icu.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\icu\icu.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\icu\icu.c
 
 fts2.lo:	$(TOP)\ext\fts2\fts2.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts2\fts2.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts2\fts2.c
 
 fts2_hash.lo:	$(TOP)\ext\fts2\fts2_hash.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts2\fts2_hash.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts2\fts2_hash.c
 
 fts2_icu.lo:	$(TOP)\ext\fts2\fts2_icu.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts2\fts2_icu.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts2\fts2_icu.c
 
 fts2_porter.lo:	$(TOP)\ext\fts2\fts2_porter.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts2\fts2_porter.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts2\fts2_porter.c
 
 fts2_tokenizer.lo:	$(TOP)\ext\fts2\fts2_tokenizer.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts2\fts2_tokenizer.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts2\fts2_tokenizer.c
 
 fts2_tokenizer1.lo:	$(TOP)\ext\fts2\fts2_tokenizer1.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts2\fts2_tokenizer1.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts2\fts2_tokenizer1.c
 
 fts3.lo:	$(TOP)\ext\fts3\fts3.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3.c
 
 fts3_aux.lo:	$(TOP)\ext\fts3\fts3_aux.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_aux.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_aux.c
 
 fts3_expr.lo:	$(TOP)\ext\fts3\fts3_expr.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_expr.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_expr.c
 
 fts3_hash.lo:	$(TOP)\ext\fts3\fts3_hash.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_hash.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_hash.c
 
 fts3_icu.lo:	$(TOP)\ext\fts3\fts3_icu.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_icu.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_icu.c
 
 fts3_snippet.lo:	$(TOP)\ext\fts3\fts3_snippet.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_snippet.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_snippet.c
 
 fts3_porter.lo:	$(TOP)\ext\fts3\fts3_porter.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_porter.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_porter.c
 
 fts3_tokenizer.lo:	$(TOP)\ext\fts3\fts3_tokenizer.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_tokenizer.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_tokenizer.c
 
 fts3_tokenizer1.lo:	$(TOP)\ext\fts3\fts3_tokenizer1.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_tokenizer1.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_tokenizer1.c
 
 fts3_tokenize_vtab.lo:	$(TOP)\ext\fts3\fts3_tokenize_vtab.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_tokenize_vtab.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_tokenize_vtab.c
 
 fts3_unicode.lo:	$(TOP)\ext\fts3\fts3_unicode.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_unicode.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_unicode.c
 
 fts3_unicode2.lo:	$(TOP)\ext\fts3\fts3_unicode2.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_unicode2.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_unicode2.c
 
 fts3_write.lo:	$(TOP)\ext\fts3\fts3_write.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_write.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\fts3\fts3_write.c
 
 rtree.lo:	$(TOP)\ext\rtree\rtree.c $(HDR) $(EXTHDR)
-	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)\ext\rtree\rtree.c
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) $(NO_WARN) -DSQLITE_CORE -c $(TOP)\ext\rtree\rtree.c
 
 
 # Rules to build the 'testfixture' application.
@@ -1449,7 +1562,7 @@ TESTFIXTURE_FLAGS = -DTCLSH=1 -DSQLITE_TEST=1 -DSQLITE_CRASH_TEST=1
 TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_SERVER=1 -DSQLITE_PRIVATE=""
 TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_CORE $(NO_WARN)
 
-TESTFIXTURE_SRC0 = $(TESTEXT) $(TESTSRC2) libsqlite3.lib
+TESTFIXTURE_SRC0 = $(TESTEXT) $(TESTSRC2) $(SHELL_CORE_DEP)
 TESTFIXTURE_SRC1 = $(TESTEXT) $(SQLITE3C)
 !IF $(USE_AMALGAMATION)==0
 TESTFIXTURE_SRC = $(TESTSRC) $(TOP)\src\tclsqlite.c $(TESTFIXTURE_SRC0)
@@ -1489,77 +1602,76 @@ sqlite3_analyzer.c: $(SQLITE3C) $(TOP)\src\test_stat.c $(TOP)\src\tclsqlite.c $(
 	echo ; return zMainloop; } >> $@
 
 sqlite3_analyzer.exe:	sqlite3_analyzer.c $(LIBRESOBJS)
-	$(LTLINK) -DBUILD_sqlite -DTCLSH=2 -I$(TCLINCDIR) sqlite3_analyzer.c \
+	$(LTLINK) $(NO_WARN) -DBUILD_sqlite -DTCLSH=2 -I$(TCLINCDIR) sqlite3_analyzer.c \
 		/link $(LTLINKOPTS) $(LTLIBPATHS) $(LIBRESOBJS) $(LTLIBS) $(TLIBS)
 
 testloadext.lo:	$(TOP)\src\test_loadext.c
-	$(LTCOMPILE) -c $(TOP)\src\test_loadext.c
+	$(LTCOMPILE) $(NO_WARN) -c $(TOP)\src\test_loadext.c
 
 testloadext.dll: testloadext.lo
 	$(LD) $(LDFLAGS) $(LTLINKOPTS) $(LTLIBPATHS) /DLL /OUT:$@ testloadext.lo
 
 showdb.exe:	$(TOP)\tool\showdb.c $(SQLITE3C)
-	$(LTLINK) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
+	$(LTLINK) $(NO_WARN) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
 		$(TOP)\tool\showdb.c $(SQLITE3C)
 
 showstat4.exe:	$(TOP)\tool\showstat4.c $(SQLITE3C)
-	$(LTLINK) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
+	$(LTLINK) $(NO_WARN) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
 		$(TOP)\tool\showstat4.c $(SQLITE3C)
 
 showjournal.exe:	$(TOP)\tool\showjournal.c $(SQLITE3C)
-	$(LTLINK) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
+	$(LTLINK) $(NO_WARN) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
 		$(TOP)\tool\showjournal.c $(SQLITE3C)
 
 showwal.exe:	$(TOP)\tool\showwal.c $(SQLITE3C)
-	$(LTLINK) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
+	$(LTLINK) $(NO_WARN) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
 		$(TOP)\tool\showwal.c $(SQLITE3C)
 
 fts3view.exe:	$(TOP)\ext\fts3\tool\fts3view.c $(SQLITE3C)
-	$(LTLINK) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
+	$(LTLINK) $(NO_WARN) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
 		$(TOP)\ext\fts3\tool\fts3view.c $(SQLITE3C)
 
 rollback-test.exe:	$(TOP)\tool\rollback-test.c $(SQLITE3C)
-	$(LTLINK) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
+	$(LTLINK) $(NO_WARN) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
 		$(TOP)\tool\rollback-test.c $(SQLITE3C)
 
 LogEst.exe:	$(TOP)\tool\logest.c sqlite3.h
-	$(LTLINK) -Fe$@ $(TOP)\tool\LogEst.c
+	$(LTLINK) $(NO_WARN) -Fe$@ $(TOP)\tool\LogEst.c
 
 wordcount.exe:	$(TOP)\test\wordcount.c $(SQLITE3C)
-	$(LTLINK) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
+	$(LTLINK) $(NO_WARN) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
 		$(TOP)\test\wordcount.c $(SQLITE3C)
 
 speedtest1.exe:	$(TOP)\test\speedtest1.c $(SQLITE3C)
-	$(LTLINK) -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
+	$(LTLINK) $(NO_WARN) -DSQLITE_OMIT_LOAD_EXTENSION -Fe$@ \
 		$(TOP)\test\speedtest1.c $(SQLITE3C)
 
 clean:
-	del /Q *.lo *.ilk *.lib *.obj *.pdb sqlite3.exe libsqlite3.lib
-	del /Q *.cod *.da *.bb *.bbg gmon.out
-	del /Q sqlite3.h opcodes.c opcodes.h
-	del /Q lemon.* lempar.c parse.*
-	del /Q mkkeywordhash.* keywordhash.h
-	del /Q notasharedlib.*
-	-rmdir /Q/S .deps
-	-rmdir /Q/S .libs
-	-rmdir /Q/S quota2a
-	-rmdir /Q/S quota2b
-	-rmdir /Q/S quota2c
-	-rmdir /Q/S tsrc
-	del /Q .target_source
-	del /Q tclsqlite3.exe tclsqlite3.exp
-	del /Q testloadext.dll testloadext.exp
-	del /Q testfixture.exe testfixture.exp test.db
-	del /Q LogEst.exe fts3view.exe rollback-test.exe showdb.exe
-	del /Q showjournal.exe showstat4.exe showwal.exe speedtest1.exe
-	del /Q wordcount.exe
-	del /Q sqlite3.dll sqlite3.lib sqlite3.exp sqlite3.def
-	del /Q sqlite3.c sqlite3-*.c
-	del /Q sqlite3rc.h
-	del /Q shell.c sqlite3ext.h
-	del /Q sqlite3_analyzer.exe sqlite3_analyzer.exp sqlite3_analyzer.c
-	del /Q sqlite-*-output.vsix
-	del /Q mptester.exe
+	del /Q *.exp *.lo *.ilk *.lib *.obj *.pdb 2>NUL
+	del /Q *.cod *.da *.bb *.bbg gmon.out 2>NUL
+	del /Q sqlite3.h opcodes.c opcodes.h 2>NUL
+	del /Q lemon.* lempar.c parse.* 2>NUL
+	del /Q mkkeywordhash.* keywordhash.h 2>NUL
+	del /Q notasharedlib.* 2>NUL
+	-rmdir /Q/S .deps 2>NUL
+	-rmdir /Q/S .libs 2>NUL
+	-rmdir /Q/S quota2a 2>NUL
+	-rmdir /Q/S quota2b 2>NUL
+	-rmdir /Q/S quota2c 2>NUL
+	-rmdir /Q/S tsrc 2>NUL
+	del /Q .target_source 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
+	del /Q showjournal.exe showstat4.exe showwal.exe speedtest1.exe 2>NUL
+	del /Q mptester.exe wordcount.exe 2>NUL
+	del /Q sqlite3.exe sqlite3.dll sqlite3.def 2>NUL
+	del /Q sqlite3.c sqlite3-*.c 2>NUL
+	del /Q sqlite3rc.h 2>NUL
+	del /Q shell.c sqlite3ext.h 2>NUL
+	del /Q sqlite3_analyzer.exe sqlite3_analyzer.c 2>NUL
+	del /Q sqlite-*-output.vsix 2>NUL
 
 # Dynamic link library section.
 #
@@ -1571,5 +1683,5 @@ sqlite3.def: libsqlite3.lib
 		| $(NAWK) "/ 1 _?sqlite3_/ { sub(/^.* _?/,\"\");print }" \
 		| sort >> sqlite3.def
 
-sqlite3.dll: $(LIBOBJ) $(LIBRESOBJS) sqlite3.def
-	$(LD) $(LDFLAGS) $(LTLINKOPTS) $(LTLIBPATHS) /DLL /DEF:sqlite3.def /OUT:$@ $(LIBOBJ) $(LIBRESOBJS) $(LTLIBS) $(TLIBS)
+sqlite3.dll: $(LIBOBJ) $(LIBRESOBJS) $(CORE_LINK_DEP)
+	$(LD) $(LDFLAGS) $(LTLINKOPTS) $(LTLIBPATHS) /DLL $(CORE_LINK_OPTS) /OUT:$@ $(LIBOBJ) $(LIBRESOBJS) $(LTLIBS) $(TLIBS)
diff --git a/VERSION b/VERSION
index d7d8e42315..203e6d5c9a 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-3.8.8
+3.8.9
diff --git a/configure b/configure
index 9e639e7f75..0c519e2216 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.62 for sqlite 3.8.8.
+# Generated by GNU Autoconf 2.62 for sqlite 3.8.9.
 #
 # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
 # 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
@@ -743,8 +743,8 @@ SHELL=${CONFIG_SHELL-/bin/sh}
 # Identity of this package.
 PACKAGE_NAME='sqlite'
 PACKAGE_TARNAME='sqlite'
-PACKAGE_VERSION='3.8.8'
-PACKAGE_STRING='sqlite 3.8.8'
+PACKAGE_VERSION='3.8.9'
+PACKAGE_STRING='sqlite 3.8.9'
 PACKAGE_BUGREPORT=''
 
 # Factoring default headers for most tests.
@@ -1480,7 +1480,7 @@ 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 3.8.8 to adapt to many kinds of systems.
+\`configure' configures sqlite 3.8.9 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1545,7 +1545,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of sqlite 3.8.8:";;
+     short | recursive ) echo "Configuration of sqlite 3.8.9:";;
    esac
   cat <<\_ACEOF
 
@@ -1659,7 +1659,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-sqlite configure 3.8.8
+sqlite configure 3.8.9
 generated by GNU Autoconf 2.62
 
 Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
@@ -1673,7 +1673,7 @@ 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 3.8.8, which was
+It was created by sqlite $as_me 3.8.9, which was
 generated by GNU Autoconf 2.62.  Invocation command line was
 
   $ $0 $@
@@ -13951,7 +13951,7 @@ exec 6>&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 3.8.8, which was
+This file was extended by sqlite $as_me 3.8.9, which was
 generated by GNU Autoconf 2.62.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -14004,7 +14004,7 @@ Report bugs to <bug-autoconf@gnu.org>."
 _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_version="\\
-sqlite config.status 3.8.8
+sqlite config.status 3.8.9
 configured by $0, generated by GNU Autoconf 2.62,
   with options \\"`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`\\"
 
diff --git a/ext/fts3/fts3.c b/ext/fts3/fts3.c
index a31d3f13fe..3c2e5adc01 100644
--- a/ext/fts3/fts3.c
+++ b/ext/fts3/fts3.c
@@ -910,11 +910,16 @@ static char *fts3WriteExprList(Fts3Table *p, const char *zFunc, int *pRc){
 ** This function is used when parsing the "prefix=" FTS4 parameter.
 */
 static int fts3GobbleInt(const char **pp, int *pnOut){
+  const MAX_NPREFIX = 10000000;
   const char *p;                  /* Iterator pointer */
   int nInt = 0;                   /* Output value */
 
   for(p=*pp; p[0]>='0' && p[0]<='9'; p++){
     nInt = nInt * 10 + (p[0] - '0');
+    if( nInt>MAX_NPREFIX ){
+      nInt = 0;
+      break;
+    }
   }
   if( p==*pp ) return SQLITE_ERROR;
   *pnOut = nInt;
@@ -957,7 +962,6 @@ static int fts3PrefixParameter(
 
   aIndex = sqlite3_malloc(sizeof(struct Fts3Index) * nIndex);
   *apIndex = aIndex;
-  *pnIndex = nIndex;
   if( !aIndex ){
     return SQLITE_NOMEM;
   }
@@ -967,13 +971,20 @@ static int fts3PrefixParameter(
     const char *p = zParam;
     int i;
     for(i=1; i<nIndex; i++){
-      int nPrefix;
+      int nPrefix = 0;
       if( fts3GobbleInt(&p, &nPrefix) ) return SQLITE_ERROR;
-      aIndex[i].nPrefix = nPrefix;
+      assert( nPrefix>=0 );
+      if( nPrefix==0 ){
+        nIndex--;
+        i--;
+      }else{
+        aIndex[i].nPrefix = nPrefix;
+      }
       p++;
     }
   }
 
+  *pnIndex = nIndex;
   return SQLITE_OK;
 }
 
diff --git a/ext/fts3/fts3_snippet.c b/ext/fts3/fts3_snippet.c
index e40750502b..7933e29a7b 100644
--- a/ext/fts3/fts3_snippet.c
+++ b/ext/fts3/fts3_snippet.c
@@ -1253,7 +1253,7 @@ void sqlite3Fts3Snippet(
       */
       for(iRead=0; iRead<pTab->nColumn; iRead++){
         SnippetFragment sF = {0, 0, 0, 0};
-        int iS;
+        int iS = 0;
         if( iCol>=0 && iRead!=iCol ) continue;
 
         /* Find the best snippet of nFToken tokens in column iRead. */
diff --git a/ext/fts3/fts3_tokenizer.c b/ext/fts3/fts3_tokenizer.c
index 04f84460e8..8bb8b178ba 100644
--- a/ext/fts3/fts3_tokenizer.c
+++ b/ext/fts3/fts3_tokenizer.c
@@ -161,6 +161,10 @@ int sqlite3Fts3InitTokenizer(
   zEnd = &zCopy[strlen(zCopy)];
 
   z = (char *)sqlite3Fts3NextToken(zCopy, &n);
+  if( z==0 ){
+    assert( n==0 );
+    z = zCopy;
+  }
   z[n] = '\0';
   sqlite3Fts3Dequote(z);
 
diff --git a/ext/fts3/fts3_write.c b/ext/fts3/fts3_write.c
index 09294bc45a..a16070766f 100644
--- a/ext/fts3/fts3_write.c
+++ b/ext/fts3/fts3_write.c
@@ -1625,7 +1625,10 @@ int sqlite3Fts3SegReaderNew(
 ** an array of pending terms by term. This occurs as part of flushing
 ** the contents of the pending-terms hash table to the database.
 */
-static int fts3CompareElemByTerm(const void *lhs, const void *rhs){
+static int SQLITE_CDECL fts3CompareElemByTerm(
+  const void *lhs,
+  const void *rhs
+){
   char *z1 = fts3HashKey(*(Fts3HashElem **)lhs);
   char *z2 = fts3HashKey(*(Fts3HashElem **)rhs);
   int n1 = fts3HashKeysize(*(Fts3HashElem **)lhs);
diff --git a/ext/fts3/tool/fts3view.c b/ext/fts3/tool/fts3view.c
index 3dc1ba80fe..6dada352b3 100644
--- a/ext/fts3/tool/fts3view.c
+++ b/ext/fts3/tool/fts3view.c
@@ -504,7 +504,7 @@ static void showSegdirMap(sqlite3 *db, const char *zTab){
                        sqlite3_column_int64(pStmt,5));
       printf("  root   %9s\n", rtag);
       if( iLEnd>iStart ){
-        sqlite3_int64 iLower, iPrev, iX;
+        sqlite3_int64 iLower, iPrev = 0, iX;
         if( iLEnd+1<=iEnd ){
           sqlite3_bind_int64(pStmt2, 1, iLEnd+1);
           sqlite3_bind_int64(pStmt2, 2, iEnd);
@@ -548,7 +548,7 @@ static void decodeSegment(
   const unsigned char *aData,   /* Content to print */
   int nData                     /* Number of bytes of content */
 ){
-  sqlite3_int64 iChild;
+  sqlite3_int64 iChild = 0;
   sqlite3_int64 iPrefix;
   sqlite3_int64 nTerm;
   sqlite3_int64 n;
diff --git a/ext/misc/compress.c b/ext/misc/compress.c
index a4059116c9..bf38d4c93c 100644
--- a/ext/misc/compress.c
+++ b/ext/misc/compress.c
@@ -38,6 +38,7 @@ static void compressFunc(
   unsigned int nIn;
   unsigned long int nOut;
   unsigned char x[8];
+  int rc;
   int i, j;
 
   pIn = sqlite3_value_blob(argv[0]);
@@ -50,8 +51,12 @@ static void compressFunc(
   for(i=0; i<4 && x[i]==0; i++){}
   for(j=0; i<=4; i++, j++) pOut[j] = x[i];
   pOut[j-1] |= 0x80;
-  compress(&pOut[j], &nOut, pIn, nIn);
-  sqlite3_result_blob(context, pOut, nOut+j, sqlite3_free);
+  rc = compress(&pOut[j], &nOut, pIn, nIn);
+  if( rc==Z_OK ){
+    sqlite3_result_blob(context, pOut, nOut+j, sqlite3_free);
+  }else{
+    sqlite3_free(pOut);
+  }
 }
 
 /*
@@ -82,6 +87,8 @@ static void uncompressFunc(
   rc = uncompress(pOut, &nOut, &pIn[i], nIn-i);
   if( rc==Z_OK ){
     sqlite3_result_blob(context, pOut, nOut, sqlite3_free);
+  }else{
+    sqlite3_free(pOut);
   }
 }
 
diff --git a/main.mk b/main.mk
index ec939c7a37..26168e02a3 100644
--- a/main.mk
+++ b/main.mk
@@ -146,6 +146,7 @@ SRC = \
   $(TOP)/src/pcache.h \
   $(TOP)/src/pcache1.c \
   $(TOP)/src/pragma.c \
+  $(TOP)/src/pragma.h \
   $(TOP)/src/prepare.c \
   $(TOP)/src/printf.c \
   $(TOP)/src/random.c \
@@ -177,6 +178,7 @@ SRC = \
   $(TOP)/src/vdbetrace.c \
   $(TOP)/src/vdbeInt.h \
   $(TOP)/src/vtab.c \
+  $(TOP)/src/vxworks.h \
   $(TOP)/src/wal.c \
   $(TOP)/src/wal.h \
   $(TOP)/src/walker.c \
@@ -385,12 +387,14 @@ HDR = \
    $(TOP)/src/pager.h \
    $(TOP)/src/pcache.h \
    parse.h  \
+   $(TOP)/src/pragma.h \
    sqlite3.h  \
    $(TOP)/src/sqlite3ext.h \
    $(TOP)/src/sqliteInt.h  \
    $(TOP)/src/sqliteLimit.h \
    $(TOP)/src/vdbe.h \
    $(TOP)/src/vdbeInt.h \
+   $(TOP)/src/vxworks.h \
    $(TOP)/src/whereInt.h
 
 # Header files used by extensions
diff --git a/manifest b/manifest
index d7abe65895..e4061e619c 100644
--- a/manifest
+++ b/manifest
@@ -1,12 +1,12 @@
-C When\sscanning\sthe\sfull-text\sindex\sas\spart\sof\sthe\sfts5\sintegrity-check,\salso\srun\sa\spoint\squery\sfor\severy\sterm\sand\sverify\sthat\sthese\sresults\sare\sconsistent\swith\sthose\sfound\sby\sthe\slinear\sscan.
-D 2015-03-21T15:37:19.761
+C Merge\strunk\schanges\swith\sthis\sbranch.
+D 2015-03-21T15:45:24.062
 F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
-F Makefile.in 5407a688f4d77a05c18a8142be8ae5a2829dd610
+F Makefile.in 88a3e6261286db378fdffa1124cad11b3c05f5bb
 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
-F Makefile.msc 1edfd7dd45d98a04f9a2fa81a01c49faeb628578
+F Makefile.msc cd626b52ebeec0e2c0dd929243bdd25b0df19a71
 F Makefile.vxworks e1b65dea203f054e71653415bd8f96dcaed47858
 F README.md d58e3bebc0a4145e0f2a87994015fdb575a8e866
-F VERSION d846487aff892625eb8e75960234e7285f0462fe
+F VERSION 319eb1ced4b4d17a67730f2b7b85f15c1346cb60
 F aclocal.m4 a5c22d164aff7ed549d53a90fa56d56955281f50
 F addopcodes.awk 9eb448a552d5c0185cf62c463f9c173cedae3811
 F art/sqlite370.eps aa97a671332b432a54e1d74ff5e8775be34200c2
@@ -38,7 +38,7 @@ F autoconf/tea/win/rules.vc c511f222b80064096b705dbeb97060ee1d6b6d63
 F config.guess 226d9a188c6196f3033ffc651cbc9dcee1a42977
 F config.h.in 42b71ad3fe21c9e88fa59e8458ca1a6bc72eb0c0
 F config.sub 9ebe4c3b3dab6431ece34f16828b594fb420da55
-F configure b2882796ddebd33ac4e9d4ccf5c5ca11888fc30e x
+F configure 613b220c2f2c7adcd50eb5ee4144ab581a150b47 x
 F configure.ac 6a8d145aea6d81f0b90013340780e43ed74fd5f4
 F contrib/sqlitecon.tcl 210a913ad63f9f991070821e599d600bd913e0ad
 F doc/lemon.html 334dbf6621b8fb8790297ec1abf3cfa4621709d1
@@ -78,7 +78,7 @@ F ext/fts3/README.content fdc666a70d5257a64fee209f97cf89e0e6e32b51
 F ext/fts3/README.syntax a19711dc5458c20734b8e485e75fb1981ec2427a
 F ext/fts3/README.tokenizers e0a8b81383ea60d0334d274fadf305ea14a8c314
 F ext/fts3/README.txt 8c18f41574404623b76917b9da66fcb0ab38328d
-F ext/fts3/fts3.c 56a78f7e65e9e59bd0e75a1e10ce406f62034ca8
+F ext/fts3/fts3.c e2c7e61d676ce7b9383d1078c9774a2f22947d57
 F ext/fts3/fts3.h 62a77d880cf06a2865052726f8325c8fabcecad7
 F ext/fts3/fts3Int.h 394858c12a17740f7a1f6bd372c4606d4425a8d1
 F ext/fts3/fts3_aux.c 5c211e17a64885faeb16b9ba7772f9d5445c2365
@@ -87,19 +87,19 @@ F ext/fts3/fts3_hash.c 29b986e43f4e9dd40110eafa377dc0d63c422c60
 F ext/fts3/fts3_hash.h 39cf6874dc239d6b4e30479b1975fe5b22a3caaf
 F ext/fts3/fts3_icu.c e319e108661147bcca8dd511cd562f33a1ba81b5
 F ext/fts3/fts3_porter.c 3565faf04b626cddf85f03825e86056a4562c009
-F ext/fts3/fts3_snippet.c f16ef6425f92339a8fecc87d9aaf2b12355c78e4
+F ext/fts3/fts3_snippet.c 52c2dcf410b1f9af5a44d81a2cf8c68ed1cb5283
 F ext/fts3/fts3_term.c a521f75132f9a495bdca1bdd45949b3191c52763
 F ext/fts3/fts3_test.c 8a3a78c4458b2d7c631fcf4b152a5cd656fa7038
 F ext/fts3/fts3_tokenize_vtab.c becc661223db7898b213f9e8a23d75bac02408c9
-F ext/fts3/fts3_tokenizer.c bbdc731bc91338050675c6d1da9ab82147391e16
+F ext/fts3/fts3_tokenizer.c 0f9e6e01de1e1fe2e79074e3cf70ed1b1ea848b7
 F ext/fts3/fts3_tokenizer.h 64c6ef6c5272c51ebe60fc607a896e84288fcbc3
 F ext/fts3/fts3_tokenizer1.c 5c98225a53705e5ee34824087478cf477bdb7004
 F ext/fts3/fts3_unicode.c a93f5edc0aff44ef8b06d7cb55b52026541ca145
 F ext/fts3/fts3_unicode2.c c3d01968d497bd7001e7dc774ba75b372738c057
-F ext/fts3/fts3_write.c 9b3a32cbecf40a1f41cb08c00df8c066c23c7a25
+F ext/fts3/fts3_write.c 7104ec015474ee61a8a570349b925f35c6b0a294
 F ext/fts3/fts3speed.tcl b54caf6a18d38174f1a6e84219950d85e98bb1e9
 F ext/fts3/mkfts3amal.tcl 252ecb7fe6467854f2aa237bf2c390b74e71f100
-F ext/fts3/tool/fts3view.c 3986531f2fc0ceca0c89c31ec7d0589b6adb19d6
+F ext/fts3/tool/fts3view.c 8e53d0190a7b3443764bbd32ad47be2bd852026d
 F ext/fts3/unicode/CaseFolding.txt 8c678ca52ecc95e16bc7afc2dbf6fc9ffa05db8c
 F ext/fts3/unicode/UnicodeData.txt cd07314edb62d49fde34debdaf92fa2aa69011e7
 F ext/fts3/unicode/mkunicode.tcl 159c1194da0bc72f51b3c2eb71022568006dc5ad
@@ -153,7 +153,7 @@ F ext/icu/icu.c d415ccf984defeb9df2c0e1afcfaa2f6dc05eacb
 F ext/icu/sqliteicu.h 728867a802baa5a96de7495e9689a8e01715ef37
 F ext/misc/amatch.c 27b9b601fb1453084e18a3432ea0240d7af8decb
 F ext/misc/closure.c 636024302cde41b2bf0c542f81c40c624cfb7012
-F ext/misc/compress.c 76e45655f4046e756064ab10c62e18f2eb846b9f
+F ext/misc/compress.c 122faa92d25033d6c3f07c39231de074ab3d2e83
 F ext/misc/eval.c f971962e92ebb8b0a4e6b62949463ee454d88fa2
 F ext/misc/fileio.c d4171c815d6543a9edef8308aab2951413cd8d0f
 F ext/misc/fuzzer.c e3e18f47252c151b5553d7e806f38e757d37c4cc
@@ -197,41 +197,41 @@ F ext/userauth/userauth.c 5fa3bdb492f481bbc1709fc83c91ebd13460c69e
 F install-sh 9d4de14ab9fb0facae2f48780b874848cbf2f895 x
 F ltmain.sh 3ff0879076df340d2e23ae905484d8c15d5fdea8
 F magic.txt 8273bf49ba3b0c8559cb2774495390c31fd61c60
-F main.mk 784b787dbf04af12581b53ceca57116a2bd355e6
+F main.mk e481861d67f0030e2c86ca947f4a7abaedaf696c
 F mkopcodec.awk c2ff431854d702cdd2d779c9c0d1f58fa16fa4ea
 F mkopcodeh.awk c6b3fa301db6ef7ac916b14c60868aeaec1337b5
 F mkso.sh fd21c06b063bb16a5d25deea1752c2da6ac3ed83
 F mptest/config01.test 3c6adcbc50b991866855f1977ff172eb6d901271
 F mptest/config02.test 4415dfe36c48785f751e16e32c20b077c28ae504
-F mptest/crash01.test cce8e306d8596d5a2e497e27112dae1f6e5e3538
+F mptest/crash01.test 61e61469e257df0850df4293d7d4d6c2af301421
 F mptest/crash02.subtest f4ef05adcd15d60e5d2bd654204f2c008b519df8
-F mptest/mptest.c 24c5f72415df2eab7088ef8c9f99f163aed590c8
-F mptest/multiwrite01.test 499ad0310da8dff8e8f98d2e272fc2a8aa741b2e
+F mptest/mptest.c 1e464f41f1bbc6578d6925043da56170f83aea96
+F mptest/multiwrite01.test dab5c5f8f9534971efce679152c5146da265222d
 F spec.template 86a4a43b99ebb3e75e6b9a735d5fd293a24e90ca
 F sqlite.pc.in 42b7bf0d02e08b9e77734a47798d1a55a9e0716b
 F sqlite3.1 fc7ad8990fc8409983309bb80de8c811a7506786
 F sqlite3.pc.in 48fed132e7cb71ab676105d2a4dc77127d8c1f3a
-F src/alter.c ba266a779bc7ce10e52e59e7d3dc79fa342e8fdb
+F src/alter.c d23d6b6991f66b383934f137fd4384d93fb98c81
 F src/analyze.c 91540f835163d5369ccbae78e2e6c74d0dd53c1d
-F src/attach.c 7f6b3fafa2290b407e4a94dcf1afda7ec0fe394b
+F src/attach.c 880f9b8641a829c563e52dd13c452ce457ae4dd8
 F src/auth.c b56c78ebe40a2110fd361379f7e8162d23f92240
-F src/backup.c 7ddee9c7d505e07e959a575b18498f17c71e53ea
+F src/backup.c ff743689c4d6c5cb55ad42ed9d174b2b3e71f1e3
 F src/bitvec.c 19a4ba637bd85f8f63fc8c9bae5ade9fb05ec1cb
-F src/btmutex.c 49ca66250c7dfa844a4d4cb8272b87420d27d3a5
-F src/btree.c 2a1245df0356a229bcd0fd87a8536b5067f16e82
-F src/btree.h 94277c1d30c0b75705974bcc8b0c05e79c03d474
-F src/btreeInt.h a3d0ae1d511365e1a2b76ad10960dbe55c286f34
-F src/build.c eefaa4f1d86bc3c08023a61fdd1e695b47796975
+F src/btmutex.c 45a968cc85afed9b5e6cf55bf1f42f8d18107f79
+F src/btree.c d4d52fb14e863cff9dbc7c746e9048ec0967a555
+F src/btree.h 969adc948e89e449220ff0ff724c94bb2a52e9f1
+F src/btreeInt.h 2bfefc01875d8da066504c233ec259fcb3b2ef72
+F src/build.c 0419bba592c22f6d00e6d57a2ca7136720d02c1a
 F src/callback.c 7b44ce59674338ad48b0e84e7b72f935ea4f68b0
 F src/complete.c 198a0066ba60ab06fc00fba1998d870a4d575463
 F src/ctime.c 98f89724adc891a1a4c655bee04e33e716e05887
 F src/date.c e4d50b3283696836ec1036b695ead9a19e37a5ac
-F src/delete.c bd1a91ddd247ce13004075251e0b7fe2bf9925ef
-F src/expr.c abe930897ccafae3819fd2855cbc1b00c262fd12
+F src/delete.c 37964e6c1d73ff49cbea9ff690c9605fb15f600e
+F src/expr.c eb4d795abca1e876726aecc7aeb95ceb29e73fe7
 F src/fault.c 160a0c015b6c2629d3899ed2daf63d75754a32bb
 F src/fkey.c e0444b61bed271a76840cbe6182df93a9baa3f12
-F src/func.c 6d3c4ebd72aa7923ce9b110a7dc15f9b8c548430
-F src/global.c 12561d70a1b25f67b21154622bb1723426724f75
+F src/func.c 1414c24c873c48796ad45942257a179a423ba42f
+F src/global.c 4f77cadbc5427d00139ba43d0f3979804cbb700e
 F src/hash.c 4263fbc955f26c2e8cdc0cf214bc42435aa4e4f5
 F src/hash.h c8f3c31722cf3277d03713909761e152a5b81094
 F src/hwtime.h d32741c8f4df852c7d959236615444e2b1063b08
@@ -240,7 +240,7 @@ F src/journal.c b4124532212b6952f42eb2c12fa3c25701d8ba8d
 F src/legacy.c ba1863ea58c4c840335a84ec276fc2b25e22bc4e
 F src/lempar.c 7274c97d24bb46631e504332ccd3bd1b37841770
 F src/loadext.c 86bd4e2fccd520b748cba52492ab60c4a770f660
-F src/main.c fe876f31d6744341d9e2de4da66f33563edec9cb
+F src/main.c 350c13b7a12bab4a502b361455ec3a0bba7b161c
 F src/malloc.c 740db54387204c9a2eb67c6d98e68b08e9ef4eab
 F src/mem0.c 6a55ebe57c46ca1a7d98da93aaa07f99f1059645
 F src/mem1.c abe6ee469b6c5a35c7f22bfeb9c9bac664a1c987
@@ -251,39 +251,40 @@ F src/memjournal.c 3eb2c0b51adbd869cb6a44780323f05fa904dc85
 F src/msvc.h e78002098966e39b2fd9915bd70b7bc3ec8398b7
 F src/mutex.c 19bf9acba69ca2f367c3761080f8a9f0cf4670a8
 F src/mutex.h 779d588e3b7756ec3ecf7d78cde1d84aba414f85
-F src/mutex_noop.c f3f09fd7a2eb4287cfc799753ffc30380e7b71a1
-F src/mutex_unix.c 551e2f25f0fa0ee8fd7a43f50fc3d8be00e95dde
-F src/mutex_w32.c df48fe07562a45c5c927c45b8d5873a27f98bbb0
+F src/mutex_noop.c 529bab0743c3321c940f32c3464de494fd38cfa9
+F src/mutex_unix.c 5cf676464bd19e0a866297515d146e8bf1669dfb
+F src/mutex_w32.c 61660ada28d8308ad190f444c2170c4f2a590c2f
 F src/notify.c 9711a7575036f0d3040ba61bc6e217f13a9888e7
 F src/os.c 8fd25588eeba74068d41102d26810e216999b6c8
 F src/os.h 3e57a24e2794a94d3cf2342c6d9a884888cd96bf
 F src/os_common.h 92815ed65f805560b66166e3583470ff94478f04
 F src/os_setup.h c9d4553b5aaa6f73391448b265b89bed0b890faa
-F src/os_unix.c aefeaf915aaef9f81aa2645e0d5d06fa1bd83beb
+F src/os_unix.c cc903ecc6ebda90ef703d043ddaa7f33de0cab0f
 F src/os_win.c 8223e7db5b7c4a81d8b161098ac3959400434cdb
 F src/os_win.h eb7a47aa17b26b77eb97e4823f20a00b8bda12ca
 F src/pager.c 4120a49ecd37697e28f5ed807f470b9c0b88410c
 F src/pager.h c3476e7c89cdf1c6914e50a11f3714e30b4e0a77
-F src/parse.y c5d0d964f9ac023e8154cad512e54b0b6058e086
-F src/pcache.c d210cf90d04365a74f85d21374dded65af67b0cb
+F src/parse.y 1299c66e7b1707322ccd8af43a359b8fb0d46d72
+F src/pcache.c 10539fb959849ad6efff80050541cab3d25089d4
 F src/pcache.h b44658c9c932d203510279439d891a2a83e12ba8
 F src/pcache1.c 1e77432b40b7d3288327d9cdf399dcdfd2b6d3bf
-F src/pragma.c ba149bbbc90783f84815636c509ced8eac11bbcf
+F src/pragma.c ac4f3f856b4234e85f55b0f069698a4766011100
+F src/pragma.h 09c89bca58e9a44de2116cc8272b8d454657129f
 F src/prepare.c 173a5a499138451b2561614ecb87d78f9f4644b9
-F src/printf.c 05edc41450d0eb2c05ef7db113bf32742ae65325
+F src/printf.c 8da9a2687a396daa19860f4dc90975d319304744
 F src/random.c ba2679f80ec82c4190062d756f22d0c358180696
-F src/resolve.c f6c46d3434439ab2084618d603e6d6dbeb0d6ada
+F src/resolve.c f4d79e31ffa5820c2e3d1740baa5e9b190425f2b
 F src/rowset.c eccf6af6d620aaa4579bd3b72c1b6395d9e9fa1e
-F src/select.c 1f2087523007c42900ffcbdeaef06a23ad9329fc
-F src/shell.c 22b4406b0b59efd14b3b351a5809dda517df6d30
-F src/sqlite.h.in 54678c21401909f72b221344dd560d285a1ba5eb
+F src/select.c 72ffb62e2879956302140e9f6e6ae88aee36b0e5
+F src/shell.c 9c1589c8271c04c02d23cdbc2c07bb40752fa9eb
+F src/sqlite.h.in c7c9111477b76c82c46bf851b619df4dd35cc095
 F src/sqlite3.rc 992c9f5fb8285ae285d6be28240a7e8d3a7f2bad
 F src/sqlite3ext.h 17d487c3c91b0b8c584a32fbeb393f6f795eea7d
-F src/sqliteInt.h c4e05f7489cd300f856e2283d5e61302ce826471
-F src/sqliteLimit.h 164b0e6749d31e0daa1a4589a169d31c0dec7b3d
+F src/sqliteInt.h f2300529f3592323a98fd7acccec63d0e9082dc5
+F src/sqliteLimit.h 216557999cb45f2e3578ed53ebefe228d779cb46
 F src/status.c 81712116e826b0089bb221b018929536b2b5406f
 F src/table.c e7a09215315a978057fb42c640f890160dbcc45e
-F src/tclsqlite.c d2a15339103ff7c61ab7766ea8f4f549997e6590
+F src/tclsqlite.c a1c728bf8abe39b24ed16951c8e5ba004fe8803c
 F src/test1.c 90fbedce75330d48d99eadb7d5f4223e86969585
 F src/test2.c 577961fe48961b2f2e5c8b56ee50c3f459d3359d
 F src/test3.c 64d2afdd68feac1bb5e2ffb8226c8c639f798622
@@ -295,14 +296,14 @@ F src/test8.c 610e3d523018ca63b08081795e76794a2121ec38
 F src/test9.c bea1e8cf52aa93695487badedd6e1886c321ea60
 F src/test_async.c 21e11293a2f72080eda70e1124e9102044531cd8
 F src/test_autoext.c dea8a01a7153b9adc97bd26161e4226329546e12
-F src/test_backup.c 3875e899222b651e18b662f86e0e50daa946344e
+F src/test_backup.c 2e6e6a081870150f20c526a2e9d0d29cda47d803
 F src/test_blob.c 1f2e3e25255b731c4fcf15ee7990d06347cb6c09
 F src/test_btree.c 2e9978eca99a9a4bfa8cae949efb00886860a64f
-F src/test_config.c 0f5843ef860a6d8381c1d4aafed4f74080584732
-F src/test_demovfs.c 69b2085076654ebc18014cbc6386f04409c959a9
+F src/test_config.c ca734889a4ece295d3ed129dc532f7fefc63711d
+F src/test_demovfs.c 0de72c2c89551629f58486fde5734b7d90758852
 F src/test_devsym.c e7498904e72ba7491d142d5c83b476c4e76993bc
 F src/test_fs.c ced436e3d4b8e4681328409b8081051ce614e28f
-F src/test_func.c 14e543ae4d905ee31dc322b2f8d31bfac1769d45
+F src/test_func.c f1ac201465472e76a73e2f3695c3553c63e7322a
 F src/test_hexio.c abfdecb6fa58c354623978efceb088ca18e379cd
 F src/test_init.c 66b33120ffe9cd853b5a905ec850d51151337b32
 F src/test_intarray.c 6c610a21ab8edde85a3a2c7f2b069244ecf4d834
@@ -310,7 +311,7 @@ F src/test_intarray.h 9dc57417fb65bc7835cc18548852cc08cc062202
 F src/test_journal.c 5360fbe1d1e4416ca36290562fd5a2e3f70f32aa
 F src/test_loadext.c a5251f956ab6af21e138dc1f9c0399394a510cb4
 F src/test_malloc.c b9495384e74923aefde8311de974bf9b0f5ba570
-F src/test_multiplex.c 72c0ad1e97af3d6d19975bbd81813072b40c7290
+F src/test_multiplex.c 97813565daa7ee480abcc5dd1e9984ed1f71eb8c
 F src/test_multiplex.h c08e4e8f8651f0c5e0509b138ff4d5b43ed1f5d3
 F src/test_mutex.c 293042d623ebba969160f471a82aa1551626454f
 F src/test_onefile.c 0396f220561f3b4eedc450cef26d40c593c69a25
@@ -318,40 +319,41 @@ F src/test_osinst.c 3d0340bc31a9f3d8a3547e0272373e80f78dde25
 F src/test_pcache.c a5cd24730cb43c5b18629043314548c9169abb00
 F src/test_quota.c 180813f43683be5725458fc1ff13ac455d8e722d
 F src/test_quota.h 2a8ad1952d1d2ca9af0ce0465e56e6c023b5e15d
-F src/test_rtree.c fdd8d29ca5165c7857987a2ba263fac5c69e231f
+F src/test_rtree.c bfe6f4386517f70054311109f3528adffec34485
 F src/test_schema.c 2bdba21b82f601da69793e1f1d11bf481a79b091
 F src/test_server.c a2615049954cbb9cfb4a62e18e2f0616e4dc38fe
 F src/test_sqllog.c b690c12933f50ff46491e0d56a251f84ae16e914
-F src/test_stat.c 9898687a6c2beca733b0dd6fe19163d987826d31
-F src/test_superlock.c 2b97936ca127d13962c3605dbc9a4ef269c424cd
+F src/test_stat.c ffc8177f6e69de32a8a89fa6bca73facb6c5face
+F src/test_superlock.c 06797157176eb7085027d9dd278c0d7a105e3ec9
 F src/test_syscall.c 2e21ca7f7dc54a028f1967b63f1e76155c356f9b
 F src/test_tclvar.c f4dc67d5f780707210d6bb0eb6016a431c04c7fa
 F src/test_thread.c af391ec03d23486dffbcc250b7e58e073f172af9
-F src/test_vfs.c 5a14c63da9579ba148138c1fb233100f2eb58ebb
+F src/test_vfs.c b7e6831e6fcf04c5090accff30640ec5c9630739
 F src/test_vfstrace.c bab9594adc976cbe696ff3970728830b4c5ed698
 F src/test_wsd.c 41cadfd9d97fe8e3e4e44f61a4a8ccd6f7ca8fe9
 F src/threads.c 6bbcc9fe50c917864d48287b4792d46d6e873481
-F src/tokenize.c e00458c9938072b0ea711c850b8dcf4ddcb5fe18
+F src/tokenize.c 05e52378c46efbc1fd63cbbbf7f3c555f840f4bf
 F src/trigger.c 25571661fdeae8c7f975ff40ffec205520a3f92f
 F src/update.c 3c4ecc282accf12d39edb8d524cf089645e55a13
 F src/utf.c fc6b889ba0779b7722634cdeaa25f1930d93820c
 F src/util.c 98a7627ca48ad3265b6940915a1d08355eb3fc7e
-F src/vacuum.c 9b30ec729337dd012ed88d4c292922c8ef9cf00c
-F src/vdbe.c ddfc977981cd6324668aa6b114045eb1c677421a
+F src/vacuum.c 9460b9de7b2d4e34b0d374894aa6c8a0632be8ec
+F src/vdbe.c bd793ed436edccaf264ec969ac92c9b5f4b41d64
 F src/vdbe.h 6fc69d9c5e146302c56e163cb4b31d1ee64a18c3
-F src/vdbeInt.h 9bb69ff2447c34b6ccc58b34ec35b615f86ead78
-F src/vdbeapi.c 4bc511a46b9839392ae0e90844a71dc96d9dbd71
-F src/vdbeaux.c 97911edb61074b871ec4aa2d6bb779071643dee5
-F src/vdbeblob.c 4af4bfb71f6df7778397b4a0ebc1879793276778
-F src/vdbemem.c 31d8eabb0cd78bfeab4e5124c7363c3e9e54db9f
-F src/vdbesort.c 6d64c5448b64851b99931ede980addc3af70d5e2
+F src/vdbeInt.h bb56fd199d8af1a2c1b9639ee2f70724b4338e3a
+F src/vdbeapi.c 583d56b129dd27f12bed518270de9ebe521e6a75
+F src/vdbeaux.c 23390670e64f011f3fed8f38a2f25aaccacb74d2
+F src/vdbeblob.c 4f2e8e075d238392df98c5e03a64342465b03f90
+F src/vdbemem.c c0dc81285b7571b0a31c40f17846fe2397ec1cd9
+F src/vdbesort.c 919717d7599fa31d343ec28bffd0f9e91a4ff5f6
 F src/vdbetrace.c 7e4222955e07dd707a2f360c0eb73452be1cb010
-F src/vtab.c ec672a0b5d507f24b9294c0696dbd2fd2ce9b122
-F src/wal.c 39303f2c9db02a4e422cd8eb2c8760420c6a51fe
+F src/vtab.c 6206db6ca9eff2e7f0076816a8ff8a3c0bfd7a7b
+F src/vxworks.h c18586c8edc1bddbc15c004fa16aeb1e1342b4fb
+F src/wal.c 878c8e1a51cb2ec45c395d26b7d5cd9e1a098e4a
 F src/wal.h df01efe09c5cb8c8e391ff1715cca294f89668a4
 F src/walker.c c253b95b4ee44b21c406e2a1052636c31ea27804
-F src/where.c d46de821bc604a4fd36fa3928c086950e91aafb1
-F src/whereInt.h d3633e9b592103241b74b0ec76185f3e5b8b62e0
+F src/where.c 85d832efa5ef57de542db7f430b72fecd3af8b38
+F src/whereInt.h cbe4aa57326998d89e7698ca65bb7c28541d483c
 F test/8_3_names.test ebbb5cd36741350040fd28b432ceadf495be25b2
 F test/aggerror.test a867e273ef9e3d7919f03ef4f0e8c0d2767944f2
 F test/aggnested.test b35b4cd69fc913f90d39a575e171e1116c3a4bb7
@@ -364,18 +366,19 @@ F test/alter4.test c461150723ac957f3b2214aa0b11552cd72023ec
 F test/altermalloc.test e81ac9657ed25c6c5bb09bebfa5a047cd8e4acfc
 F test/amatch1.test b5ae7065f042b7f4c1c922933f4700add50cdb9f
 F test/analyze.test 1772936d66471c65221e437b6d1999c3a03166c4
-F test/analyze3.test bf41f0f680dd1e0d44eed5e769531e93a5320275
+F test/analyze3.test 75b9e42ea1e4edc919250450dc5762186965d4e6
 F test/analyze4.test eff2df19b8dd84529966420f29ea52edc6b56213
 F test/analyze5.test 765c4e284aa69ca172772aa940946f55629bc8c4
 F test/analyze6.test f1c552ce39cca4ec922a7e4e0e5d0203d6b3281f
 F test/analyze7.test bb1409afc9e8629e414387ef048b8e0e3e0bdc4f
 F test/analyze8.test c05a461d0a6b05991106467d0c47480f2e709c82
-F test/analyze9.test 72795c8113604b5dcd47a1498a61d6d7fb5d041a
+F test/analyze9.test 3dd9e203fad353ec8027b18a6d9a92af59f4e727
 F test/analyzeA.test 3335697f6700c7052295cfd0067fc5b2aacddf9a
 F test/analyzeB.test 8bf35ee0a548aea831bf56762cb8e7fdb1db083d
 F test/analyzeC.test 555a6cc388b9818b6eda6df816f01ce0a75d3a93
 F test/analyzeD.test 08f9d0bee4e118a66fff3a32d02dbe0ee0a2b594
 F test/analyzeE.test 8684e8ac5722fb97c251887ad97e5d496a98af1d
+F test/analyzeF.test 7ccd7a04f7d3061bde1a8a4dacc4792edccf6bf2
 F test/async.test 1d0e056ba1bb9729283a0f22718d3a25e82c277b
 F test/async2.test c0a9bd20816d7d6a2ceca7b8c03d3d69c28ffb8b
 F test/async3.test d73a062002376d7edc1fe3edff493edbec1fc2f7
@@ -391,10 +394,10 @@ F test/auth.test 855233ef26eb3601b6886567ea4e326c72959360
 F test/auth2.test 264c6af53cad9aba5218c68bbe18036e39007bfa
 F test/auth3.test 5cfa94ed90c6617c42b7ba4b133fd79678b251c7
 F test/autoinc.test c58912526998a39e11f66b533e23cfabea7f25b7
-F test/autoindex1.test 6ff78b94f43a59616c06c11c55b12935173506d7
+F test/autoindex1.test 7008c9f604141fdabe31b7bb95b5ff31b518251f
 F test/autoindex2.test af7e595c6864cc6ef5fc38d5db579a3e34940cb8
 F test/autoindex3.test a3be0d1a53a7d2edff208a5e442312957047e972
-F test/autoindex4.test fc807f9efd158bec60f5dfdf34ebe46fb274612d
+F test/autoindex4.test 49d3cd791a9baa16fb461d7ea3de80d019a819cf
 F test/autovacuum.test 941892505d2c0f410a0cb5970dfa1c7c4e5f6e74
 F test/autovacuum_ioerr2.test 8a367b224183ad801e0e24dcb7d1501f45f244b4
 F test/avtrans.test 0252654f4295ddda3b2cce0e894812259e655a85
@@ -430,7 +433,7 @@ F test/btreefault.test c2bcb542685eea44621275cfedbd8a13f65201e3
 F test/busy.test 76b4887f8b9160ba903c1ac22e8ff406ad6ae2f0
 F test/cache.test 13bc046b26210471ca6f2889aceb1ea52dc717de
 F test/capi2.test 011c16da245fdc0106a2785035de6b242c05e738
-F test/capi3.test f0718f4f90d0efdc980119bfbdf1d7f1541ee5ef
+F test/capi3.test bf6f0308bbbba1e770dac13aa08e5c2ac61c7324
 F test/capi3b.test efb2b9cfd127efa84433cd7a2d72ce0454ae0dc4
 F test/capi3c.test fdc0d67a2cb8e8fc400d5b7735e330161ea057a2
 F test/capi3d.test a82b6321c50a1cfc848e386fa2c851893606f68c
@@ -440,14 +443,14 @@ F test/check.test 5831ddb6f2c687782eaf2e1a07b6e17f24c4f763
 F test/close.test 340bd24cc58b16c6bc01967402755027c37eb815
 F test/closure01.test b1703ba40639cfc9b295cf478d70739415eec6a4
 F test/coalesce.test cee0dccb9fbd2d494b77234bccf9dc6c6786eb91
-F test/collate1.test 73b91005f264b7c403e2d63a6708d150679ac99a
+F test/collate1.test 7fcfe78f9613dc4a7e247d6bd27749955f108741
 F test/collate2.test 9aaa410a00734e48bcb27f3872617d6f69b2a621
 F test/collate3.test 79558a286362cb9ed603c6fa543f1cda7f563f0f
 F test/collate4.test f04d5168685f2eef637ecfa2d4ddf8ec0d600177
 F test/collate5.test 65d928034d30d2d263a80f6359f7549ee1598ec6
 F test/collate6.test 8be65a182abaac8011a622131486dafb8076e907
 F test/collate7.test 8ec29d98f3ee4ccebce6e16ce3863fb6b8c7b868
-F test/collate8.test df26649cfcbddf109c04122b340301616d3a88f6
+F test/collate8.test cd9b3d3f999b8520ffaa7cc1647061fc5bab1334
 F test/collate9.test 3adcc799229545940df2f25308dd1ad65869145a
 F test/collateA.test b8218ab90d1fa5c59dcf156efabb1b2599c580d6
 F test/colmeta.test 2c765ea61ee37bc43bbe6d6047f89004e6508eb1
@@ -485,6 +488,7 @@ F test/crash5.test 05dd3aa9dbb751a22d5cdaf22a9c49b6667aa219
 F test/crash6.test 4c56f1e40d0291e1110790a99807aa875b1647ba
 F test/crash7.test 1a194c4900a255258cf94b7fcbfd29536db572df
 F test/crash8.test 61442a9964ab6b124fc5254e4258b45747842e6f
+F test/crashM.test d95f59046fa749b0d0822edf18a717788c8f318d
 F test/crashtest1.c 09c1c7d728ccf4feb9e481671e29dda5669bbcc2
 F test/createtab.test b5de160630b209c4b8925bdcbbaf48cc90b67fe8
 F test/cse.test 277350a26264495e86b1785f34d2d0c8600e021c
@@ -514,7 +518,7 @@ F test/e_dropview.test 0c9f7f60989164a70a67a9d9c26d1083bc808306
 F test/e_expr.test 8f5fdd7261e2d746813b0c6a1c0e34824ad3c5ad
 F test/e_fkey.test a1783fe1f759e1990e6a11adfcf0702dac4d0707
 F test/e_fts3.test 5c02288842e4f941896fd44afdef564dd5fc1459
-F test/e_insert.test 7b2fa9cd1456f83474d6c5d27db3abaeb8be2023
+F test/e_insert.test 0e63edc037afe738bb81a626a676811ed7862c90
 F test/e_reindex.test 396b7b4f0a66863b4e95116a67d93b227193e589
 F test/e_resolve.test dcce9308fb13b934ce29591105d031d3e14fbba6
 F test/e_select.test 52692ff3849541e828ad4661fe3773a9b8711763
@@ -523,7 +527,7 @@ F test/e_totalchanges.test b12ee5809d3e63aeb83238dd501a7bca7fd72c10
 F test/e_update.test 312cb8f5ccfe41515a6bb092f8ea562a9bd54d52
 F test/e_uri.test 5ae33760fb2039c61aa2d90886f1664664173585
 F test/e_vacuum.test 5bfbdc21b65c0abf24398d0ba31dc88d93ca77a9
-F test/e_wal.test 0967f0b8f1dfda871dc7b9b5574198f1f4f7d69a
+F test/e_wal.test ae9a593207a77d711443ee69ffe081fda9243625
 F test/e_walauto.test ca70cf75c07a6cb1874ced101dd426da76625649
 F test/e_walckpt.test 65e29b6631e51f210f83e4ff11571e647ba93608
 F test/e_walhook.test da3ea8b3483d1af72190337bda50155a91a4b664
@@ -547,7 +551,7 @@ F test/fkey1.test e1d1fa84cde579185ea01358436839703e415a5b
 F test/fkey2.test 1db212cda86b0d3ce72714001f7b6381c321341c
 F test/fkey3.test 76d475c80b84ee7a5d062e56ccb6ea68882e2b49
 F test/fkey4.test 86446017011273aad8f9a99c1a65019e7bd9ca9d
-F test/fkey5.test 488601fbda8350619b3029487e56830447056fd2
+F test/fkey5.test 56bcb5a6e8b725b17febc267fb041a6695e86853
 F test/fkey6.test abb59f866c1b44926fd02d1fdd217d831fe04f48
 F test/fkey7.test 72e915890ee4a005daaf3002cb208e8fe973ac13
 F test/fkey8.test 8f08203458321e6c19a263829de4cfc936274ab0
@@ -605,7 +609,7 @@ F test/fts3al.test 07d64326e79bbdbab20ee87fc3328fbf01641c9f
 F test/fts3am.test 218aa6ba0dfc50c7c16b2022aac5c6be593d08d8
 F test/fts3an.test a49ccadc07a2f7d646ec1b81bc09da2d85a85b18
 F test/fts3ao.test 3e4e3d5e75c076520341d0bdf4eb17c00e8cbde2
-F test/fts3atoken.test fca30fd86db9241d571c637751e9a8a2f50f1451
+F test/fts3atoken.test 95c721d71acb141eb754701b15a8e60bb6eb4263
 F test/fts3auto.test b981fea19b132b4e6878f50d7c1f369b28f68eb9
 F test/fts3aux1.test f8f287a4a73f381f8fa15b6a70f36245f903d221
 F test/fts3aux2.test 7ae2b2c13aefdf4169279a27a5f51780ce57f6ba
@@ -633,9 +637,9 @@ F test/fts3join.test 53e66a0c21eb568580674a43b21c059acb26f499
 F test/fts3malloc.test b0e4c133b8d61d4f6d112d8110f8320e9e453ef6
 F test/fts3matchinfo.test 58544fa4d254000fa4e7f494b0a832f7ba61d45e
 F test/fts3near.test 7e3354d46f155a822b59c0e957fd2a70c1d7e905
-F test/fts3prefix.test b36d4f00b128a51e7b386cc013a874246d9d7dc1
+F test/fts3prefix.test 9f68e3598a139c23ec47d09299420e0fc4c72a83
 F test/fts3prefix2.test e1f0a822ca661dced7f12ce392e14eaf65609dce
-F test/fts3query.test d81ffb0ab1d4e1a2a330b8eb1e160b60603f4745
+F test/fts3query.test c838b18f2b859e15fd31c64be3d79ef1556803ca
 F test/fts3rnd.test 1320d8826a845e38a96e769562bf83d7a92a15d0
 F test/fts3shared.test 57e26a801f21027b7530da77db54286a6fe4997e
 F test/fts3snippet.test 03c2f3be7d3b7c8bb105ed237f204833392bd57f
@@ -682,13 +686,14 @@ F test/in3.test 3cbf58c87f4052cee3a58b37b6389777505aa0c0
 F test/in4.test d2b38cba404bc4320f4fe1b595b3d163f212c068
 F test/in5.test 1de657472fa9ac2924be25c2c959ac5ca1aae554
 F test/incrblob.test e81846d214f3637622620fbde7cd526781cfe328
-F test/incrblob2.test bf4d549aa4a466d7fbe3e3a3693d3861263d5600
+F test/incrblob2.test a5ce5ed1d0b01e2ed347245a21170372528af0a5
 F test/incrblob3.test d8d036fde015d4a159cd3cbae9d29003b37227a4
 F test/incrblob4.test f26502a5697893e5acea268c910f16478c2f0fab
 F test/incrblob_err.test af1f12ba60d220c9752073ff2bda2ad59e88960d
 F test/incrblobfault.test 280474078f6da9e732cd2a215d3d854969014b6e
+F test/incrcorrupt.test 9786cba68c5832f01887fde1c06b43c3904d86f6
 F test/incrvacuum.test d2a6ddf5e429720b5fe502766af747915ccf6c32
-F test/incrvacuum2.test 379eeb8740b0ef60c372c439ad4cbea20b34bb9b
+F test/incrvacuum2.test 676c41428765d58f1da7dbe659ef27726d3d30ac
 F test/incrvacuum3.test 75256fb1377e7c39ef2de62bfc42bbff67be295a
 F test/incrvacuum_ioerr.test 6ae2f783424e47a0033304808fe27789cf93e635
 F test/index.test 4d990005a67a36984e4f1a5f1bdccea8d08da4ee
@@ -696,9 +701,9 @@ F test/index2.test ee83c6b5e3173a3d7137140d945d9a5d4fdfb9d6
 F test/index3.test 55a90cff99834305e8141df7afaef39674b57062
 F test/index4.test ab92e736d5946840236cd61ac3191f91a7856bf6
 F test/index5.test 25b0b451aceed4ac5f7d49f856f6de7257470b3e
-F test/index6.test fb370966ac3cd0989053dd5385757b5c3e24ab6a
-F test/index7.test 917cf1e1c7439bb155abbeabec511b28945e157b
-F test/indexedby.test b2f22f3e693a53813aa3f50b812eb609ba6df1ec
+F test/index6.test 3ae54e53c53f2adcacda269237d8e52bdb05a481
+F test/index7.test 3d54dce09344c4530ea39a458aa304da044c887a
+F test/indexedby.test 5f527a78bae74c61b8046ae3037f9dfb0bf0c353
 F test/indexfault.test 31d4ab9a7d2f6e9616933eb079722362a883eb1d
 F test/init.test 15c823093fdabbf7b531fe22cf037134d09587a7
 F test/insert.test 38742b5e9601c8f8d76e9b7555f7270288c2d371
@@ -732,26 +737,27 @@ F test/jrnlmode3.test 556b447a05be0e0963f4311e95ab1632b11c9eaa
 F test/keyword1.test 37ef6bba5d2ed5b07ecdd6810571de2956599dff
 F test/lastinsert.test 42e948fd6442f07d60acbd15d33fb86473e0ef63
 F test/laststmtchanges.test ae613f53819206b3222771828d024154d51db200
-F test/like.test e191e536d0fcd722a6b965e7cd1ee0bfd12a5991
+F test/like.test 4f2a71d36a536233727f71995fef900756705e56
 F test/like2.test 3b2ee13149ba4a8a60b59756f4e5d345573852da
-F test/limit.test 3d7df19c35ac672a11f7de406cd3205d592babbb
+F test/like3.test 7b0525a39e4f25c4fd113de7e2e28eb712dcdedf
+F test/limit.test 0c99a27a87b14c646a9d583c7c89fd06c352663e
 F test/loadext.test 648cb95f324d1775c54a55c12271b2d1156b633b
 F test/loadext2.test 0408380b57adca04004247179837a18e866a74f7
-F test/lock.test 87af515b0c4cf928576d0f89946d67d7c265dfb4
+F test/lock.test b984ab9034e7389be0d863fe4e64cbbc4d2028f5
 F test/lock2.test 5242d8ac4e2d59c403aebff606af449b455aceff
 F test/lock3.test f271375930711ae044080f4fe6d6eda930870d00
 F test/lock4.test e175ae13865bc87680607563bafba21f31a26f12
 F test/lock5.test c6c5e0ebcb21c61a572870cc86c0cb9f14cede38
 F test/lock6.test ad5b387a3a8096afd3c68a55b9535056431b0cf5
 F test/lock7.test 49f1eaff1cdc491cc5dee3669f3c671d9f172431
-F test/lock_common.tcl 0c270b121d40959fa2f3add382200c27045b3d95
+F test/lock_common.tcl 7ffb45accf6ee91c736df9bafe0806a44358f035
 F test/lookaside.test 93f07bac140c5bb1d49f3892d2684decafdc7af2
 F test/main.test 16131264ea0c2b93b95201f0c92958e85f2ba11a
 F test/make-where7.tcl 05c16b5d4f5d6512881dfec560cb793915932ef9
 F test/malloc.test 96939d2d1a6f39667bbebe5bc27c6525f2ab614e
 F test/malloc3.test e3b32c724b5a124b57cb0ed177f675249ad0c66a
 F test/malloc4.test 957337613002b7058a85116493a262f679f3a261
-F test/malloc5.test fafce0aa9157060445cd1a56ad50fc79d82f28c3
+F test/malloc5.test 79182b8bffd6d62f77b1a5a8ba8e6bf0e5053b8e
 F test/malloc6.test 2f039d9821927eacae43e1831f815e157659a151
 F test/malloc7.test 7c68a32942858bc715284856c5507446bba88c3a
 F test/malloc8.test 9b7a3f8cb9cf0b12fff566e80a980b1767bd961d
@@ -767,7 +773,7 @@ F test/mallocG.test 0ff91b65c50bdaba680fb75d87fe4ad35bb7934f
 F test/mallocH.test 79b65aed612c9b3ed2dcdaa727c85895fd1bfbdb
 F test/mallocI.test a88c2b9627c8506bf4703d8397420043a786cdb6
 F test/mallocJ.test b5d1839da331d96223e5f458856f8ffe1366f62e
-F test/mallocK.test 223cc80c870c80d4a9c2014e94133efdf0123f82
+F test/mallocK.test da01dcdd316767b8356741f8d33a23a06a23def5
 F test/mallocL.test 252ddc7eb4fbf75364eab17b938816085ff1fc17
 F test/malloc_common.tcl a644f12e2da20ddfabb8bd077ec610a44113450e
 F test/manydb.test 28385ae2087967aa05c38624cec7d96ec74feb3e
@@ -796,7 +802,7 @@ F test/mmapfault.test d4c9eff9cd8c2dc14bc43e71e042f175b0a26fe3
 F test/multiplex.test efd015ca0b5b4a57dc9535b8feb1273eebeadb60
 F test/multiplex2.test 580ca5817c7edbe4cc68fa150609c9473393003a
 F test/multiplex3.test d228f59eac91839a977eac19f21d053f03e4d101
-F test/multiplex4.test d3e8a5a522c51cbf3ed1c5b0bd496be02c29d7b1
+F test/multiplex4.test e8ae4c4bd70606a5727743241f13b5701990abe4
 F test/mutex1.test 78b2b9bb320e51d156c4efdb71b99b051e7a4b41
 F test/mutex2.test bfeaeac2e73095b2ac32285d2756e3a65e681660
 F test/nan.test e9648b9d007c7045242af35e11a984d4b169443a
@@ -831,8 +837,8 @@ F test/pcache.test b09104b03160aca0d968d99e8cd2c5b1921a993d
 F test/pcache2.test a83efe2dec0d392f814bfc998def1d1833942025
 F test/percentile.test 4243af26b8f3f4555abe166f723715a1f74c77ff
 F test/permutations.test 62ff8c49738c72a70b034ecc31957bee437f76ff
-F test/pragma.test aa16dedfe01c02c8895169012f7dfde9c163f0d5
-F test/pragma2.test aea7b3d82c76034a2df2b38a13745172ddc0bc13
+F test/pragma.test ad99d05e411c7687302124be56f3b362204be041
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 F test/pragma3.test 6f849ccffeee7e496d2f2b5e74152306c0b8757c
 F test/printf.test ec9870c4dce8686a37818e0bf1aba6e6a1863552
 F test/printf2.test b4acd4bf8734243257f01ddefa17c4fb090acc8a
@@ -846,7 +852,7 @@ F test/quota2.test 7dc12e08b11cbc4c16c9ba2aa2e040ea8d8ab4b8
 F test/quote.test 215897dbe8de1a6f701265836d6601cc6ed103e6
 F test/randexpr1.tcl 40dec52119ed3a2b8b2a773bce24b63a3a746459
 F test/randexpr1.test eda062a97e60f9c38ae8d806b03b0ddf23d796df
-F test/rdonly.test dd30a4858d8e0fbad2304c2bd74a33d4df36412a
+F test/rdonly.test 64e2696c322e3538df0b1ed624e21f9a23ed9ff8
 F test/regexp1.test 497ea812f264d12b6198d6e50a76be4a1973a9d8
 F test/reindex.test 44edd3966b474468b823d481eafef0c305022254
 F test/releasetest.tcl 13f401c10dd4fe1a2fb811ae6ed27fd7d1300d3c
@@ -876,9 +882,9 @@ F test/securedel2.test 2d54c28e46eb1fd6902089958b20b1b056c6f1c5
 F test/select1.test fc2a61f226a649393664ad54bc5376631801517c
 F test/select2.test 352480e0e9c66eda9c3044e412abdf5be0215b56
 F test/select3.test 2ce595f8fb8e2ac10071d3b4e424cadd4634a054
-F test/select4.test 8c5a60d439e2df824aed56223566877a883c5c84
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 F test/select5.test e758b8ef94f69b111df4cb819008856655dcd535
-F test/select6.test e76bd10a56988f15726c097a5d5a7966fe82d3b2
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 F test/select7.test 7fd2ef598cfabb6b9ff6ac13973b91d0527df49d
 F test/select8.test 391de11bdd52339c30580dabbbbe97e3e9a3c79d
 F test/select9.test aebc2bb0c3bc44606125033cbcaac2c8d1f33a95
@@ -902,14 +908,14 @@ F test/sharedA.test 0cdf1a76dfa00e6beee66af5b534b1e8df2720f5
 F test/sharedB.test 16cc7178e20965d75278f410943109b77b2e645e
 F test/shared_err.test 2f2aee20db294b9924e81f6ccbe60f19e21e8506
 F test/sharedlock.test 5ede3c37439067c43b0198f580fd374ebf15d304
-F test/shell1.test cdeb849acc2c37aada70d084564b0cc0a2c7df08
+F test/shell1.test ca88b14a8fc8b1f3543a24e519d019585ac9c903
 F test/shell2.test 12b8bf901b0e3a8ac58cf5c0c63a0a388d4d1862
 F test/shell3.test 5e8545ec72c4413a0e8d4c6be56496e3c257ca29
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-F test/shell5.test 81aba4793fa7441b1300daae1aec4f7e4b5741c1
+F test/shell4.test ddf0a99044e2245a87fc17423e3aaa1445b3243b
+F test/shell5.test c04e9f9f948305706b88377c464c7f08ce7479f9
 F test/shortread1.test bb591ef20f0fd9ed26d0d12e80eee6d7ac8897a3
 F test/show_speedtest1_rtree.tcl 32e6c5f073d7426148a6936a0408f4b5b169aba5
-F test/shrink.test 8c70f62b6e8eb4d54533de6d65bd06b1b9a17868
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 F test/sidedelete.test f0ad71abe6233e3b153100f3b8d679b19a488329
 F test/skipscan1.test 2ddfe5d168462170c4487f534e2a99fb006b2076
 F test/skipscan2.test d1d1450952b7275f0b0a3a981f0230532743951a
@@ -917,11 +923,11 @@ F test/skipscan3.test ec5bab3f81c7038b43450e7b3062e04a198bdbb5
 F test/skipscan5.test 67817a4b6857c47e0e33ba3e506da6f23ef68de2
 F test/skipscan6.test 5866039d03a56f5bd0b3d172a012074a1d90a15b
 F test/soak.test 0b5b6375c9f4110c828070b826b3b4b0bb65cd5f
-F test/softheap1.test 40562fe6cac6d9827b7b42b86d45aedf12c15e24
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 F test/sort.test 3f492e5b7be1d3f756728d2ff6edf4f6091e84cb
 F test/sort2.test 37afbc03f5559f2eb0f18940b55d38dfbb5172ac
 F test/sort3.test 6178ade30810ac9166fcdf14b7065e49c0f534e2
-F test/sort4.test d5e8903194ae551551349ce25dc8d0b40ca2b9c3
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 F test/sort5.test a448240a42b49239edc00f85d6d7ac7a1b261e1f
 F test/sortfault.test d4ccf606a0c77498e2beb542764fd9394acb4d66
 F test/speed1.test f2974a91d79f58507ada01864c0e323093065452
@@ -932,9 +938,9 @@ F test/speed3.test d32043614c08c53eafdc80f33191d5bd9b920523
 F test/speed4.test abc0ad3399dcf9703abed2fff8705e4f8e416715
 F test/speed4p.explain 6b5f104ebeb34a038b2f714150f51d01143e59aa
 F test/speed4p.test 0e51908951677de5a969b723e03a27a1c45db38b
-F test/speedtest1.c e4e2aa37ff66bad9f414a50a8cb9edfaac65c9e5
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 F test/spellfix.test 24f676831acddd2f4056a598fd731a72c6311f49
-F test/sqllimits1.test 9014524e7ab16e2a4976b13397db4c29cc29c6d9
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 F test/stat.test 76fd746b85459e812a0193410fb599f0531f22de
 F test/stmt.test 25d64e3dbf9a3ce89558667d7f39d966fe2a71b9
 F test/subquery.test 666fdecceac258f5fd84bed09a64e49d9f37edd9
@@ -948,7 +954,7 @@ F test/sysfault.test fa776e60bf46bdd3ae69f0b73e46ee3977a58ae6
 F test/table.test 06271d61eb13871490d38168433c1ef3dd82bb2a
 F test/tableapi.test 2674633fa95d80da917571ebdd759a14d9819126
 F test/tableopts.test dba698ba97251017b7c80d738c198d39ab747930
-F test/tclsqlite.test 37a61c2da7e3bfe3b8c1a2867199f6b860df5d43
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 F test/tempdb.test 19d0f66e2e3eeffd68661a11c83ba5e6ace9128c
 F test/temptable.test d2c9b87a54147161bcd1822e30c1d1cd891e5b30
 F test/temptrigger.test 8ec228b0db5d7ebc4ee9b458fc28cb9e7873f5e1
@@ -1151,7 +1157,7 @@ F test/varint.test ab7b110089a08b9926ed7390e7e97bdefeb74102
 F test/veryquick.test 57ab846bacf7b90cf4e9a672721ea5c5b669b661
 F test/view.test f311691d696a5cc27e3c1b875cec1b0866b4ccd9
 F test/vtab1.test 1cef14310144718812351a61c5cfb4ba8494a171
-F test/vtab2.test 7bcffc050da5c68f4f312e49e443063e2d391c0d
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 F test/vtab3.test b45f47d20f225ccc9c28dc915d92740c2dee311e
 F test/vtab4.test 942f8b8280b3ea8a41dae20e7822d065ca1cb275
 F test/vtab5.test 889f444970393c73f1e077e2bdc5d845e157a391
@@ -1181,6 +1187,7 @@ F test/wal9.test 378e76a9ad09cd9bee06c172ad3547b0129a6750
 F test/wal_common.tcl a98f17fba96206122eff624db0ab13ec377be4fe
 F test/walbak.test b9f68e39646375c2b877be906babcc15d38b4877
 F test/walbig.test f437473a16cfb314867c6b5d1dbcd519e73e3434
+F test/walblock.test f1290524714232c109fb0b14db28f14d81c3ddd0
 F test/walcksum.test 9afeb96240296c08c72fc524d199c912cfe34daa
 F test/walcrash.test 451d79e528add5c42764cea74aa2750754171b25
 F test/walcrash2.test a0edab4e5390f03b99a790de89aad15d6ec70b36
@@ -1201,7 +1208,7 @@ F test/where4.test d8420ceeb8323a41ceff1f1841fc528e824e1ecf
 F test/where5.test fdf66f96d29a064b63eb543e28da4dfdccd81ad2
 F test/where6.test 5da5a98cec820d488e82708301b96cb8c18a258b
 F test/where7.test 5a4b0abc207d71da4deecd734ad8579e8dd40aa8
-F test/where8.test 806f1dcec4088be2b826b33f757fe6e17c3236a1
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 F test/where8m.test da346596e19d54f0aba35ebade032a7c47d79739
 F test/where9.test 729c3ba9b47e8f9f1aab96bae7dad2a524f1d1a2
 F test/whereA.test 4d253178d135ec46d1671e440cd8f2b916aa6e6b
@@ -1214,12 +1221,13 @@ F test/whereG.test 69f5ec4b15760a8c860f80e2d55525669390aab3
 F test/whereH.test e4b07f7a3c2f5d31195cd33710054c78667573b2
 F test/whereI.test 1d89199697919d4930be05a71e7fe620f114e622
 F test/whereJ.test 55a3221706a7ab706293f17cc8f96da563bf0767
+F test/whereK.test f8e3cf26a8513ecc7f514f54df9f0572c046c42b
 F test/wherelimit.test 5e9fd41e79bb2b2d588ed999d641d9c965619b31
 F test/wild001.test bca33f499866f04c24510d74baf1e578d4e44b1c
 F test/win32heap.test ea19770974795cff26e11575e12d422dbd16893c
 F test/win32lock.test 71642fa56e9b06e5cfffe6bad67cb8c1eb2c555a
 F test/win32longpath.test 169c75a3b2e43481f4a62122510210c67b08f26d
-F test/with1.test 268081a6b14817a262ced4d0ee34d4d2a1dd2068
+F test/with1.test 9df5cd8a62148b3d9ef8597aea563e3863018bcd
 F test/with2.test ee227a663586aa09771cafd4fa269c5217eaf775
 F test/withM.test e97f2a8c506ab3ea9eab94e6f6072f6cc924c991
 F test/without_rowid1.test 7862e605753c8d25329f665fa09072e842183151
@@ -1227,11 +1235,11 @@ F test/without_rowid2.test af260339f79d13cb220288b67cd287fbcf81ad99
 F test/without_rowid3.test 1081aabf60a1e1123b7f9a8f6ae19954351843b0
 F test/without_rowid4.test 4e08bcbaee0399f35d58b5581881e7a6243d458a
 F test/without_rowid5.test 61256715b686359df48ca1742db50cc7e3e7b862
-F test/without_rowid6.test deddb78ef539c355bddec00cdfaea6c56efd8b3f
+F test/without_rowid6.test db0dbf03c49030aa3c1ba5f618620334bd2baf5f
 F test/wordcount.c 9915e06cb33d8ca8109b8700791afe80d305afda
 F test/zeroblob.test caaecfb4f908f7bc086ed238668049f96774d688
 F test/zerodamage.test cf6748bad89553cc1632be51a6f54e487e4039ac
-F tool/build-all-msvc.bat a0534c971b86fe95f1983f445db5b896d3394818 x
+F tool/build-all-msvc.bat 62785b25bf7ea82dc016b3233a896151c786cfbb x
 F tool/build-shell.sh 950f47c6174f1eea171319438b93ba67ff5bf367
 F tool/checkSpacing.c 810e51703529a204fc4e1eb060e9ab663e3c06d2
 F tool/diffdb.c 7524b1b5df217c20cd0431f6789851a4e0cb191b
@@ -1248,10 +1256,10 @@ F tool/logest.c eef612f8adf4d0993dafed0416064cf50d5d33c6
 F tool/mkautoconfamal.sh d1a2da0e15b2ed33d60af35c7e9d483f13a8eb9f
 F tool/mkkeywordhash.c dfff09dbbfaf950e89af294f48f902181b144670
 F tool/mkopts.tcl 66ac10d240cc6e86abd37dc908d50382f84ff46e
-F tool/mkpragmatab.tcl 07a5124cf2dbafa1b375eefcf8ac4227028b0f8b
+F tool/mkpragmatab.tcl 94f196c9961e0ca3513e29f57125a3197808be2d
 F tool/mkspeedsql.tcl a1a334d288f7adfe6e996f2e712becf076745c97
 F tool/mksqlite3c-noext.tcl 9ef48e1748dce7b844f67e2450ff9dfeb0fb4ab5
-F tool/mksqlite3c.tcl ce1e8a27ecf2d20194325237a3bba6b40e7eed3b
+F tool/mksqlite3c.tcl d7e4b042022fae78a70a8e64f534c1b22afd7c94
 F tool/mksqlite3h.tcl ba24038056f51fde07c0079c41885ab85e2cff12
 F tool/mksqlite3internalh.tcl eb994013e833359137eb53a55acdad0b5ae1049b
 F tool/mkvsix.tcl 52a4c613707ac34ae9c226e5ccc69cb948556105
@@ -1261,13 +1269,13 @@ F tool/opcodeDoc.awk b3a2a3d5d3075b8bd90b7afe24283efdd586659c
 F tool/pagesig.c ff0ca355fd3c2398e933da5e22439bbff89b803b
 F tool/restore_jrnl.tcl 6957a34f8f1f0f8285e07536225ec3b292a9024a
 F tool/rollback-test.c 9fc98427d1e23e84429d7e6d07d9094fbdec65a5
-F tool/showdb.c bd073a78bce714a0e42d92ea474b3eb8cb53be5d
+F tool/showdb.c 63cdef19e7fbca0c164b096ef8aef3bb9e9dd222
 F tool/showjournal.c 053eb1cc774710c6890b7dd6293300cc297b16a5
 F tool/showstat4.c 9515faa8ec176599d4a8288293ba8ec61f7b728a
 F tool/showwal.c 85cb36d4fe3e93e2fbd63e786e0d1ce42d0c4fad
 F tool/soak1.tcl 8d407956e1a45b485a8e072470a3e629a27037fe
 F tool/space_used.tcl f714c41a59e326b8b9042f415b628b561bafa06b
-F tool/spaceanal.tcl 8e50b217c56a6a086a1b47eac9d09c5cd65b996f
+F tool/spaceanal.tcl d5a09620c66a6c144576cb9d2bdfa9a6fbe362a5
 F tool/speedtest.tcl 06c76698485ccf597b9e7dbb1ac70706eb873355
 F tool/speedtest16.c c8a9c793df96db7e4933f0852abb7a03d48f2e81
 F tool/speedtest2.tcl ee2149167303ba8e95af97873c575c3e0fab58ff
@@ -1284,7 +1292,7 @@ F tool/vdbe_profile.tcl 67746953071a9f8f2f668b73fe899074e2c6d8c1
 F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
 F tool/warnings.sh 0abfd78ceb09b7f7c27c688c8e3fe93268a13b32
 F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
-P f5db489250029678fce845dfb2b1109fde46bea5
-R 258f390b03b29f1c61f33d36002f03e9
+P ce972f6aab90f6929d018696f1ab3c2649eca802 2fbfec62fc03d42ee240dfefaa0aeb59a3f04d88
+R ac1096479f46553b83d75e58159a61e7
 U dan
-Z 6cf104c99eec6cd34913e25fa048b8ab
+Z 4a4a23e7de895ef00eee4c91a114f586
diff --git a/manifest.uuid b/manifest.uuid
index f5fccf09fa..5171b9525e 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-ce972f6aab90f6929d018696f1ab3c2649eca802
\ No newline at end of file
+142743918fd5a6d79fa10c44398360c3684a255a
\ No newline at end of file
diff --git a/mptest/crash01.test b/mptest/crash01.test
index 46f170cecc..f1483dfa1d 100644
--- a/mptest/crash01.test
+++ b/mptest/crash01.test
@@ -32,6 +32,7 @@
 --end
 --wait 1
 --task 2
+  DROP TABLE IF EXISTS t2;
   CREATE TABLE t2(a INTEGER PRIMARY KEY, b);
   INSERT INTO t2 SELECT a, b FROM t1;
   UPDATE t1 SET b='x'||a||'y';
@@ -46,6 +47,7 @@
   --match 29 28 27 26 25
 --end
 --task 3
+  DROP TABLE IF EXISTS t3;
   CREATE TABLE t3(a INTEGER PRIMARY KEY, b);
   INSERT INTO t3 SELECT a, b FROM t1;
   UPDATE t1 SET b='x'||a||'y';
@@ -60,6 +62,7 @@
   --match 29 28 27 26 25
 --end
 --task 4
+  DROP TABLE IF EXISTS t4;
   CREATE TABLE t4(a INTEGER PRIMARY KEY, b);
   INSERT INTO t4 SELECT a, b FROM t1;
   UPDATE t1 SET b='x'||a||'y';
@@ -74,6 +77,7 @@
   --match 29 28 27 26 25
 --end
 --task 5
+  DROP TABLE IF EXISTS t5;
   CREATE TABLE t5(a INTEGER PRIMARY KEY, b);
   INSERT INTO t5 SELECT a, b FROM t1;
   UPDATE t1 SET b='x'||a||'y';
diff --git a/mptest/mptest.c b/mptest/mptest.c
index 7b56b61902..40c14bc87a 100644
--- a/mptest/mptest.c
+++ b/mptest/mptest.c
@@ -1252,7 +1252,7 @@ static void unrecognizedArguments(
   exit(1);
 }
 
-int main(int argc, char **argv){
+int SQLITE_CDECL main(int argc, char **argv){
   const char *zClient;
   int iClient;
   int n, i;
@@ -1262,6 +1262,9 @@ int main(int argc, char **argv){
   int taskId;
   const char *zTrace;
   const char *zCOption;
+  const char *zJMode;
+  const char *zNRep;
+  int nRep = 1, iRep;
 
   g.argv0 = argv[0];
   g.iTrace = 1;
@@ -1277,6 +1280,10 @@ int main(int argc, char **argv){
   }
   n = argc-2;
   sqlite3_snprintf(sizeof(g.zName), g.zName, "%05d.mptest", GETPID());
+  zJMode = findOption(argv+2, &n, "journalmode", 1);
+  zNRep = findOption(argv+2, &n, "repeat", 1);
+  if( zNRep ) nRep = atoi(zNRep);
+  if( nRep<1 ) nRep = 1;
   g.zVfs = findOption(argv+2, &n, "vfs", 1);
   zClient = findOption(argv+2, &n, "client", 1);
   g.zErrLog = findOption(argv+2, &n, "errlog", 1);
@@ -1348,7 +1355,11 @@ int main(int argc, char **argv){
       fatalError("missing script filename");
     }
     if( n>1 ) unrecognizedArguments(argv[0], n, argv+2);
+    if( zJMode ) runSql("PRAGMA journal_mode=%Q;", zJMode);
     runSql(
+      "DROP TABLE IF EXISTS task;\n"
+      "DROP TABLE IF EXISTS counters;\n"
+      "DROP TABLE IF EXISTS client;\n"
       "CREATE TABLE task(\n"
       "  id INTEGER PRIMARY KEY,\n"
       "  name TEXT,\n"
@@ -1364,10 +1375,12 @@ int main(int argc, char **argv){
       "CREATE TABLE client(id INTEGER PRIMARY KEY, wantHalt);\n"
     );
     zScript = readFile(argv[2]);
-    if( g.iTrace ) logMessage("begin script [%s]\n", argv[2]);
-    runScript(0, 0, zScript, argv[2]);
+    for(iRep=1; iRep<=nRep; iRep++){
+      if( g.iTrace ) logMessage("begin script [%s] cycle %d\n", argv[2], iRep);
+      runScript(0, 0, zScript, argv[2]);
+      if( g.iTrace ) logMessage("end script [%s] cycle %d\n", argv[2], iRep);
+    }
     sqlite3_free(zScript);
-    if( g.iTrace ) logMessage("end script [%s]\n", argv[2]);
     waitForClient(0, 2000, "during shutdown...\n");
     trySql("UPDATE client SET wantHalt=1");
     sqlite3_sleep(10);
@@ -1391,7 +1404,7 @@ int main(int argc, char **argv){
     }
     sqlite3_finalize(pStmt);
   }
-  sqlite3_close(g.db);  
+  sqlite3_close(g.db);
   maybeClose(g.pLog);
   maybeClose(g.pErrLog);
   if( iClient==0 ){
diff --git a/mptest/multiwrite01.test b/mptest/multiwrite01.test
index 4f88a68949..7062ae0d51 100644
--- a/mptest/multiwrite01.test
+++ b/mptest/multiwrite01.test
@@ -361,6 +361,8 @@ PRAGMA integrity_check(10);
    WHERE t4.b GLOB 'x4?y' AND t3.b=('x'||(t4.a+5)||'y')
    ORDER BY t3.a LIMIT 7
   --match 45 46 47 48 49 50 51
+  PRAGMA integrity_check;
+  --match ok
 --end
 --task 5
   SELECT t1.a FROM t1, t2
@@ -371,6 +373,8 @@ PRAGMA integrity_check(10);
    WHERE t4.b GLOB 'x4?y' AND t3.b=('x'||(t4.a+5)||'y')
    ORDER BY t3.a LIMIT 7
   --match 45 46 47 48 49 50 51
+  PRAGMA integrity_check;
+  --match ok
 --end
 --task 3
   SELECT t1.a FROM t1, t2
@@ -381,6 +385,8 @@ PRAGMA integrity_check(10);
    WHERE t4.b GLOB 'x4?y' AND t3.b=('x'||(t4.a+5)||'y')
    ORDER BY t3.a LIMIT 7
   --match 45 46 47 48 49 50 51
+  PRAGMA integrity_check;
+  --match ok
 --end
 --task 2
   SELECT t1.a FROM t1, t2
@@ -391,6 +397,8 @@ PRAGMA integrity_check(10);
    WHERE t4.b GLOB 'x4?y' AND t3.b=('x'||(t4.a+5)||'y')
    ORDER BY t3.a LIMIT 7
   --match 45 46 47 48 49 50 51
+  PRAGMA integrity_check;
+  --match ok
 --end
 --task 4
   SELECT t1.a FROM t1, t2
@@ -401,5 +409,7 @@ PRAGMA integrity_check(10);
    WHERE t4.b GLOB 'x4?y' AND t3.b=('x'||(t4.a+5)||'y')
    ORDER BY t3.a LIMIT 7
   --match 45 46 47 48 49 50 51
+  PRAGMA integrity_check;
+  --match ok
 --end
 --wait all
diff --git a/src/alter.c b/src/alter.c
index dd060248b8..03605b25aa 100644
--- a/src/alter.c
+++ b/src/alter.c
@@ -690,7 +690,10 @@ void sqlite3AlterFinishAddColumn(Parse *pParse, Token *pColDef){
   */
   if( pDflt ){
     sqlite3_value *pVal = 0;
-    if( sqlite3ValueFromExpr(db, pDflt, SQLITE_UTF8, SQLITE_AFF_NONE, &pVal) ){
+    int rc;
+    rc = sqlite3ValueFromExpr(db, pDflt, SQLITE_UTF8, SQLITE_AFF_NONE, &pVal);
+    assert( rc==SQLITE_OK || rc==SQLITE_NOMEM );
+    if( rc!=SQLITE_OK ){
       db->mallocFailed = 1;
       return;
     }
diff --git a/src/attach.c b/src/attach.c
index de8742938b..7e35fa67c6 100644
--- a/src/attach.c
+++ b/src/attach.c
@@ -191,7 +191,7 @@ static void attachFunc(
       case SQLITE_NULL:
         /* No key specified.  Use the key from the main database */
         sqlite3CodecGetKey(db, 0, (void**)&zKey, &nKey);
-        if( nKey>0 || sqlite3BtreeGetReserve(db->aDb[0].pBt)>0 ){
+        if( nKey>0 || sqlite3BtreeGetOptimalReserve(db->aDb[0].pBt)>0 ){
           rc = sqlite3CodecAttach(db, db->nDb-1, zKey, nKey);
         }
         break;
diff --git a/src/backup.c b/src/backup.c
index e3f869035e..81c8b5c5f4 100644
--- a/src/backup.c
+++ b/src/backup.c
@@ -247,7 +247,7 @@ static int backupOnePage(
   ** guaranteed that the shared-mutex is held by this thread, handle
   ** p->pSrc may not actually be the owner.  */
   int nSrcReserve = sqlite3BtreeGetReserveNoMutex(p->pSrc);
-  int nDestReserve = sqlite3BtreeGetReserve(p->pDest);
+  int nDestReserve = sqlite3BtreeGetOptimalReserve(p->pDest);
 #endif
   int rc = SQLITE_OK;
   i64 iOff;
diff --git a/src/btmutex.c b/src/btmutex.c
index f9fe5b3dde..c9c8572dfb 100644
--- a/src/btmutex.c
+++ b/src/btmutex.c
@@ -141,6 +141,7 @@ static void SQLITE_NOINLINE btreeLockCarefully(Btree *p){
 ** Exit the recursive mutex on a Btree.
 */
 void sqlite3BtreeLeave(Btree *p){
+  assert( sqlite3_mutex_held(p->db->mutex) );
   if( p->sharable ){
     assert( p->wantToLock>0 );
     p->wantToLock--;
diff --git a/src/btree.c b/src/btree.c
index eb5151351c..1d82a2b625 100644
--- a/src/btree.c
+++ b/src/btree.c
@@ -2405,6 +2405,9 @@ int sqlite3BtreeSetPageSize(Btree *p, int pageSize, int nReserve, int iFix){
   BtShared *pBt = p->pBt;
   assert( nReserve>=-1 && nReserve<=255 );
   sqlite3BtreeEnter(p);
+#if SQLITE_HAS_CODEC
+  if( nReserve>pBt->optimalReserve ) pBt->optimalReserve = (u8)nReserve;
+#endif
   if( pBt->btsFlags & BTS_PAGESIZE_FIXED ){
     sqlite3BtreeLeave(p);
     return SQLITE_READONLY;
@@ -2434,7 +2437,6 @@ int sqlite3BtreeGetPageSize(Btree *p){
   return p->pBt->pageSize;
 }
 
-#if defined(SQLITE_HAS_CODEC) || defined(SQLITE_DEBUG)
 /*
 ** This function is similar to sqlite3BtreeGetReserve(), except that it
 ** may only be called if it is guaranteed that the b-tree mutex is already
@@ -2447,25 +2449,33 @@ int sqlite3BtreeGetPageSize(Btree *p){
 ** database handle that owns *p, causing undefined behavior.
 */
 int sqlite3BtreeGetReserveNoMutex(Btree *p){
+  int n;
   assert( sqlite3_mutex_held(p->pBt->mutex) );
-  return p->pBt->pageSize - p->pBt->usableSize;
+  n = p->pBt->pageSize - p->pBt->usableSize;
+  return n;
 }
-#endif /* SQLITE_HAS_CODEC || SQLITE_DEBUG */
 
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS) || !defined(SQLITE_OMIT_VACUUM)
 /*
 ** Return the number of bytes of space at the end of every page that
 ** are intentually left unused.  This is the "reserved" space that is
 ** sometimes used by extensions.
+**
+** If SQLITE_HAS_MUTEX is defined then the number returned is the
+** greater of the current reserved space and the maximum requested
+** reserve space.
 */
-int sqlite3BtreeGetReserve(Btree *p){
+int sqlite3BtreeGetOptimalReserve(Btree *p){
   int n;
   sqlite3BtreeEnter(p);
-  n = p->pBt->pageSize - p->pBt->usableSize;
+  n = sqlite3BtreeGetReserveNoMutex(p);
+#ifdef SQLITE_HAS_CODEC
+  if( n<p->pBt->optimalReserve ) n = p->pBt->optimalReserve;
+#endif
   sqlite3BtreeLeave(p);
   return n;
 }
 
+
 /*
 ** Set the maximum page count for a database if mxPage is positive.
 ** No changes are made if mxPage is 0 or negative.
@@ -2496,7 +2506,6 @@ int sqlite3BtreeSecureDelete(Btree *p, int newFlag){
   sqlite3BtreeLeave(p);
   return b;
 }
-#endif /* !defined(SQLITE_OMIT_PAGER_PRAGMAS) || !defined(SQLITE_OMIT_VACUUM) */
 
 /*
 ** Change the 'auto-vacuum' property of the database. If the 'autoVacuum'
@@ -7471,7 +7480,8 @@ static int balance(BtCursor *pCur){
           ** pSpace buffer passed to the latter call to balance_nonroot().
           */
           u8 *pSpace = sqlite3PageMalloc(pCur->pBt->pageSize);
-          rc = balance_nonroot(pParent, iIdx, pSpace, iPage==1, pCur->hints);
+          rc = balance_nonroot(pParent, iIdx, pSpace, iPage==1,
+                               pCur->hints&BTREE_BULKLOAD);
           if( pFree ){
             /* If pFree is not NULL, it points to the pSpace buffer used 
             ** by a previous call to balance_nonroot(). Its contents are
@@ -9134,14 +9144,23 @@ int sqlite3BtreeSetVersion(Btree *pBtree, int iVersion){
 }
 
 /*
-** set the mask of hint flags for cursor pCsr. Currently the only valid
-** values are 0 and BTREE_BULKLOAD.
+** set the mask of hint flags for cursor pCsr.
 */
 void sqlite3BtreeCursorHints(BtCursor *pCsr, unsigned int mask){
-  assert( mask==BTREE_BULKLOAD || mask==0 );
+  assert( mask==BTREE_BULKLOAD || mask==BTREE_SEEK_EQ || mask==0 );
   pCsr->hints = mask;
 }
 
+#ifdef SQLITE_DEBUG
+/*
+** Return true if the cursor has a hint specified.  This routine is
+** only used from within assert() statements
+*/
+int sqlite3BtreeCursorHasHint(BtCursor *pCsr, unsigned int mask){
+  return (pCsr->hints & mask)!=0;
+}
+#endif
+
 /*
 ** Return true if the given Btree is read-only.
 */
diff --git a/src/btree.h b/src/btree.h
index b57d500c77..3edc2b3b57 100644
--- a/src/btree.h
+++ b/src/btree.h
@@ -73,10 +73,8 @@ int sqlite3BtreeGetPageSize(Btree*);
 int sqlite3BtreeMaxPageCount(Btree*,int);
 u32 sqlite3BtreeLastPage(Btree*);
 int sqlite3BtreeSecureDelete(Btree*,int);
-int sqlite3BtreeGetReserve(Btree*);
-#if defined(SQLITE_HAS_CODEC) || defined(SQLITE_DEBUG)
+int sqlite3BtreeGetOptimalReserve(Btree*);
 int sqlite3BtreeGetReserveNoMutex(Btree *p);
-#endif
 int sqlite3BtreeSetAutoVacuum(Btree *, int);
 int sqlite3BtreeGetAutoVacuum(Btree *);
 int sqlite3BtreeBeginTrans(Btree*,int);
@@ -154,8 +152,18 @@ int sqlite3BtreeNewDb(Btree *p);
 /*
 ** Values that may be OR'd together to form the second argument of an
 ** sqlite3BtreeCursorHints() call.
+**
+** The BTREE_BULKLOAD flag is set on index cursors when the index is going
+** to be filled with content that is already in sorted order.
+**
+** The BTREE_SEEK_EQ flag is set on cursors that will get OP_SeekGE or
+** OP_SeekLE opcodes for a range search, but where the range of entries
+** selected will all have the same key.  In other words, the cursor will
+** be used only for equality key searches.
+**
 */
-#define BTREE_BULKLOAD 0x00000001
+#define BTREE_BULKLOAD 0x00000001  /* Used to full index in sorted order */
+#define BTREE_SEEK_EQ  0x00000002  /* EQ seeks only - no range seeks */
 
 int sqlite3BtreeCursor(
   Btree*,                              /* BTree containing table to open */
@@ -201,6 +209,9 @@ void sqlite3BtreeIncrblobCursor(BtCursor *);
 void sqlite3BtreeClearCursor(BtCursor *);
 int sqlite3BtreeSetVersion(Btree *pBt, int iVersion);
 void sqlite3BtreeCursorHints(BtCursor *, unsigned int mask);
+#ifdef SQLITE_DEBUG
+int sqlite3BtreeCursorHasHint(BtCursor*, unsigned int mask);
+#endif
 int sqlite3BtreeIsReadonly(Btree *pBt);
 int sqlite3HeaderSizeBtree(void);
 
diff --git a/src/btreeInt.h b/src/btreeInt.h
index ed4d75ee9f..87d0ef1bb8 100644
--- a/src/btreeInt.h
+++ b/src/btreeInt.h
@@ -418,6 +418,9 @@ struct BtShared {
 #endif
   u8 inTransaction;     /* Transaction state */
   u8 max1bytePayload;   /* Maximum first byte of cell for a 1-byte payload */
+#ifdef SQLITE_HAS_CODEC
+  u8 optimalReserve;    /* Desired amount of reserved space per page */
+#endif
   u16 btsFlags;         /* Boolean parameters.  See BTS_* macros below */
   u16 maxLocal;         /* Maximum local payload in non-LEAFDATA tables */
   u16 minLocal;         /* Minimum local payload in non-LEAFDATA tables */
diff --git a/src/build.c b/src/build.c
index 7e3ce1b76a..fcf96bd42c 100644
--- a/src/build.c
+++ b/src/build.c
@@ -308,10 +308,6 @@ Table *sqlite3FindTable(sqlite3 *db, const char *zName, const char *zDatabase){
   Table *p = 0;
   int i;
 
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !sqlite3SafetyCheckOk(db) || zName==0 ) return 0;
-#endif
-
   /* All mutexes are required for schema access.  Make sure we hold them. */
   assert( zDatabase!=0 || sqlite3BtreeHoldsAllMutexes(db) );
 #if SQLITE_USER_AUTHENTICATION
@@ -3187,6 +3183,7 @@ Index *sqlite3CreateIndex(
             pIdx->onError = pIndex->onError;
           }
         }
+        pRet = pIdx;
         goto exit_create_index;
       }
     }
diff --git a/src/delete.c b/src/delete.c
index 011fb80dee..ef6aace1c8 100644
--- a/src/delete.c
+++ b/src/delete.c
@@ -189,7 +189,7 @@ Expr *sqlite3LimitWhere(
 
   pInClause->x.pSelect = pSelect;
   pInClause->flags |= EP_xIsSelect;
-  sqlite3ExprSetHeight(pParse, pInClause);
+  sqlite3ExprSetHeightAndFlags(pParse, pInClause);
   return pInClause;
 
   /* something went wrong. clean up anything allocated. */
diff --git a/src/expr.c b/src/expr.c
index 25bd958ceb..fe09b4b50b 100644
--- a/src/expr.c
+++ b/src/expr.c
@@ -69,10 +69,11 @@ char sqlite3ExprAffinity(Expr *pExpr){
 Expr *sqlite3ExprAddCollateToken(
   Parse *pParse,           /* Parsing context */
   Expr *pExpr,             /* Add the "COLLATE" clause to this expression */
-  const Token *pCollName   /* Name of collating sequence */
+  const Token *pCollName,  /* Name of collating sequence */
+  int dequote              /* True to dequote pCollName */
 ){
   if( pCollName->n>0 ){
-    Expr *pNew = sqlite3ExprAlloc(pParse->db, TK_COLLATE, pCollName, 1);
+    Expr *pNew = sqlite3ExprAlloc(pParse->db, TK_COLLATE, pCollName, dequote);
     if( pNew ){
       pNew->pLeft = pExpr;
       pNew->flags |= EP_Collate|EP_Skip;
@@ -86,7 +87,7 @@ Expr *sqlite3ExprAddCollateString(Parse *pParse, Expr *pExpr, const char *zC){
   assert( zC!=0 );
   s.z = zC;
   s.n = sqlite3Strlen30(s.z);
-  return sqlite3ExprAddCollateToken(pParse, pExpr, &s);
+  return sqlite3ExprAddCollateToken(pParse, pExpr, &s, 0);
 }
 
 /*
@@ -146,10 +147,25 @@ CollSeq *sqlite3ExprCollSeq(Parse *pParse, Expr *pExpr){
       break;
     }
     if( p->flags & EP_Collate ){
-      if( ALWAYS(p->pLeft) && (p->pLeft->flags & EP_Collate)!=0 ){
+      if( p->pLeft && (p->pLeft->flags & EP_Collate)!=0 ){
         p = p->pLeft;
       }else{
-        p = p->pRight;
+        Expr *pNext  = p->pRight;
+        /* The Expr.x union is never used at the same time as Expr.pRight */
+        assert( p->x.pList==0 || p->pRight==0 );
+        /* p->flags holds EP_Collate and p->pLeft->flags does not.  And
+        ** p->x.pSelect cannot.  So if p->x.pLeft exists, it must hold at
+        ** least one EP_Collate. Thus the following two ALWAYS. */
+        if( p->x.pList!=0 && ALWAYS(!ExprHasProperty(p, EP_xIsSelect)) ){
+          int i;
+          for(i=0; ALWAYS(i<p->x.pList->nExpr); i++){
+            if( ExprHasProperty(p->x.pList->a[i].pExpr, EP_Collate) ){
+              pNext = p->x.pList->a[i].pExpr;
+              break;
+            }
+          }
+        }
+        p = pNext;
       }
     }else{
       break;
@@ -355,6 +371,9 @@ static void heightOfSelect(Select *p, int *pnHeight){
 ** Expr.pSelect member has a height of 1. Any other expression
 ** has a height equal to the maximum height of any other 
 ** referenced Expr plus one.
+**
+** Also propagate EP_Propagate flags up from Expr.x.pList to Expr.flags,
+** if appropriate.
 */
 static void exprSetHeight(Expr *p){
   int nHeight = 0;
@@ -362,8 +381,9 @@ static void exprSetHeight(Expr *p){
   heightOfExpr(p->pRight, &nHeight);
   if( ExprHasProperty(p, EP_xIsSelect) ){
     heightOfSelect(p->x.pSelect, &nHeight);
-  }else{
+  }else if( p->x.pList ){
     heightOfExprList(p->x.pList, &nHeight);
+    p->flags |= EP_Propagate & sqlite3ExprListFlags(p->x.pList);
   }
   p->nHeight = nHeight + 1;
 }
@@ -372,8 +392,11 @@ static void exprSetHeight(Expr *p){
 ** Set the Expr.nHeight variable using the exprSetHeight() function. If
 ** the height is greater than the maximum allowed expression depth,
 ** leave an error in pParse.
+**
+** Also propagate all EP_Propagate flags from the Expr.x.pList into
+** Expr.flags. 
 */
-void sqlite3ExprSetHeight(Parse *pParse, Expr *p){
+void sqlite3ExprSetHeightAndFlags(Parse *pParse, Expr *p){
   exprSetHeight(p);
   sqlite3ExprCheckHeight(pParse, p->nHeight);
 }
@@ -387,8 +410,17 @@ int sqlite3SelectExprHeight(Select *p){
   heightOfSelect(p, &nHeight);
   return nHeight;
 }
-#else
-  #define exprSetHeight(y)
+#else /* ABOVE:  Height enforcement enabled.  BELOW: Height enforcement off */
+/*
+** Propagate all EP_Propagate flags from the Expr.x.pList into
+** Expr.flags. 
+*/
+void sqlite3ExprSetHeightAndFlags(Parse *pParse, Expr *p){
+  if( p && p->x.pList && !ExprHasProperty(p, EP_xIsSelect) ){
+    p->flags |= EP_Propagate & sqlite3ExprListFlags(p->x.pList);
+  }
+}
+#define exprSetHeight(y)
 #endif /* SQLITE_MAX_EXPR_DEPTH>0 */
 
 /*
@@ -490,11 +522,11 @@ void sqlite3ExprAttachSubtrees(
   }else{
     if( pRight ){
       pRoot->pRight = pRight;
-      pRoot->flags |= EP_Collate & pRight->flags;
+      pRoot->flags |= EP_Propagate & pRight->flags;
     }
     if( pLeft ){
       pRoot->pLeft = pLeft;
-      pRoot->flags |= EP_Collate & pLeft->flags;
+      pRoot->flags |= EP_Propagate & pLeft->flags;
     }
     exprSetHeight(pRoot);
   }
@@ -594,7 +626,7 @@ Expr *sqlite3ExprFunction(Parse *pParse, ExprList *pList, Token *pToken){
   }
   pNew->x.pList = pList;
   assert( !ExprHasProperty(pNew, EP_xIsSelect) );
-  sqlite3ExprSetHeight(pParse, pNew);
+  sqlite3ExprSetHeightAndFlags(pParse, pNew);
   return pNew;
 }
 
@@ -1209,6 +1241,21 @@ void sqlite3ExprListDelete(sqlite3 *db, ExprList *pList){
   sqlite3DbFree(db, pList);
 }
 
+/*
+** Return the bitwise-OR of all Expr.flags fields in the given
+** ExprList.
+*/
+u32 sqlite3ExprListFlags(const ExprList *pList){
+  int i;
+  u32 m = 0;
+  if( pList ){
+    for(i=0; i<pList->nExpr; i++){
+       m |= pList->a[i].pExpr->flags;
+    }
+  }
+  return m;
+}
+
 /*
 ** These routines are Walker callbacks used to check expressions to
 ** see if they are "constant" for some definition of constant.  The
@@ -1249,7 +1296,7 @@ static int exprNodeIsConstant(Walker *pWalker, Expr *pExpr){
     ** and either pWalker->eCode==4 or 5 or the function has the
     ** SQLITE_FUNC_CONST flag. */
     case TK_FUNCTION:
-      if( pWalker->eCode>=4 || ExprHasProperty(pExpr,EP_Constant) ){
+      if( pWalker->eCode>=4 || ExprHasProperty(pExpr,EP_ConstFunc) ){
         return WRC_Continue;
       }else{
         pWalker->eCode = 0;
diff --git a/src/func.c b/src/func.c
index a057993413..782a240884 100644
--- a/src/func.c
+++ b/src/func.c
@@ -22,7 +22,9 @@
 ** Return the collating function associated with a function.
 */
 static CollSeq *sqlite3GetFuncCollSeq(sqlite3_context *context){
-  VdbeOp *pOp = &context->pVdbe->aOp[context->iOp-1];
+  VdbeOp *pOp;
+  assert( context->pVdbe!=0 );
+  pOp = &context->pVdbe->aOp[context->iOp-1];
   assert( pOp->opcode==OP_CollSeq );
   assert( pOp->p4type==P4_COLLSEQ );
   return pOp->p4.pColl;
@@ -291,6 +293,14 @@ static void substrFunc(
       }
     }
   }
+#ifdef SQLITE_SUBSTR_COMPATIBILITY
+  /* If SUBSTR_COMPATIBILITY is defined then substr(X,0,N) work the same as
+  ** as substr(X,1,N) - it returns the first N characters of X.  This
+  ** is essentially a back-out of the bug-fix in check-in [5fc125d362df4b8]
+  ** from 2009-02-02 for compatibility of applications that exploited the
+  ** old buggy behavior. */
+  if( p1==0 ) p1 = 1; /* <rdar://problem/6778339> */
+#endif
   if( argc==3 ){
     p2 = sqlite3_value_int(argv[2]);
     if( p2<0 ){
@@ -1642,6 +1652,11 @@ void sqlite3RegisterLikeFunctions(sqlite3 *db, int caseSensitive){
 ** then set aWc[0] through aWc[2] to the wildcard characters and
 ** return TRUE.  If the function is not a LIKE-style function then
 ** return FALSE.
+**
+** *pIsNocase is set to true if uppercase and lowercase are equivalent for
+** the function (default for LIKE).  If the function makes the distinction
+** between uppercase and lowercase (as does GLOB) then *pIsNocase is set to
+** false.
 */
 int sqlite3IsLikeFunction(sqlite3 *db, Expr *pExpr, int *pIsNocase, char *aWc){
   FuncDef *pDef;
diff --git a/src/global.c b/src/global.c
index c7043bba48..61450b3d35 100644
--- a/src/global.c
+++ b/src/global.c
@@ -46,16 +46,16 @@ const unsigned char sqlite3UpperToLower[] = {
      48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, /* 3x */
      64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, /* 4x */
      80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, /* 5x */
-     96, 97, 66, 67, 68, 69, 70, 71, 72, 73,106,107,108,109,110,111, /* 6x */
-    112, 81, 82, 83, 84, 85, 86, 87, 88, 89,122,123,124,125,126,127, /* 7x */
+     96, 97, 98, 99,100,101,102,103,104,105,106,107,108,109,110,111, /* 6x */
+    112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127, /* 7x */
     128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143, /* 8x */
-    144,145,146,147,148,149,150,151,152,153,154,155,156,157,156,159, /* 9x */
+    144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159, /* 9x */
     160,161,162,163,164,165,166,167,168,169,170,171,140,141,142,175, /* Ax */
     176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191, /* Bx */
     192,129,130,131,132,133,134,135,136,137,202,203,204,205,206,207, /* Cx */
     208,145,146,147,148,149,150,151,152,153,218,219,220,221,222,223, /* Dx */
-    224,225,162,163,164,165,166,167,168,169,232,203,204,205,206,207, /* Ex */
-    239,240,241,242,243,244,245,246,247,248,249,219,220,221,222,255, /* Fx */
+    224,225,162,163,164,165,166,167,168,169,234,235,236,237,238,239, /* Ex */
+    240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255, /* Fx */
 #endif
 };
 
diff --git a/src/main.c b/src/main.c
index 8df3679c8f..0bf413f1aa 100644
--- a/src/main.c
+++ b/src/main.c
@@ -343,26 +343,28 @@ int sqlite3_config(int op, ...){
     */
 #if defined(SQLITE_THREADSAFE) && SQLITE_THREADSAFE>0  /* IMP: R-54466-46756 */
     case SQLITE_CONFIG_SINGLETHREAD: {
-      /* Disable all mutexing */
-      sqlite3GlobalConfig.bCoreMutex = 0;
-      sqlite3GlobalConfig.bFullMutex = 0;
+      /* EVIDENCE-OF: R-02748-19096 This option sets the threading mode to
+      ** Single-thread. */
+      sqlite3GlobalConfig.bCoreMutex = 0;  /* Disable mutex on core */
+      sqlite3GlobalConfig.bFullMutex = 0;  /* Disable mutex on connections */
       break;
     }
 #endif
 #if defined(SQLITE_THREADSAFE) && SQLITE_THREADSAFE>0 /* IMP: R-20520-54086 */
     case SQLITE_CONFIG_MULTITHREAD: {
-      /* Disable mutexing of database connections */
-      /* Enable mutexing of core data structures */
-      sqlite3GlobalConfig.bCoreMutex = 1;
-      sqlite3GlobalConfig.bFullMutex = 0;
+      /* EVIDENCE-OF: R-14374-42468 This option sets the threading mode to
+      ** Multi-thread. */
+      sqlite3GlobalConfig.bCoreMutex = 1;  /* Enable mutex on core */
+      sqlite3GlobalConfig.bFullMutex = 0;  /* Disable mutex on connections */
       break;
     }
 #endif
 #if defined(SQLITE_THREADSAFE) && SQLITE_THREADSAFE>0 /* IMP: R-59593-21810 */
     case SQLITE_CONFIG_SERIALIZED: {
-      /* Enable all mutexing */
-      sqlite3GlobalConfig.bCoreMutex = 1;
-      sqlite3GlobalConfig.bFullMutex = 1;
+      /* EVIDENCE-OF: R-41220-51800 This option sets the threading mode to
+      ** Serialized. */
+      sqlite3GlobalConfig.bCoreMutex = 1;  /* Enable mutex on core */
+      sqlite3GlobalConfig.bFullMutex = 1;  /* Enable mutex on connections */
       break;
     }
 #endif
@@ -474,7 +476,8 @@ int sqlite3_config(int op, ...){
     case SQLITE_CONFIG_HEAP: {
       /* EVIDENCE-OF: R-19854-42126 There are three arguments to
       ** SQLITE_CONFIG_HEAP: An 8-byte aligned pointer to the memory, the
-      ** number of bytes in the memory buffer, and the minimum allocation size. */
+      ** number of bytes in the memory buffer, and the minimum allocation size.
+      */
       sqlite3GlobalConfig.pHeap = va_arg(ap, void*);
       sqlite3GlobalConfig.nHeap = va_arg(ap, int);
       sqlite3GlobalConfig.mnReq = va_arg(ap, int);
@@ -579,7 +582,9 @@ int sqlite3_config(int op, ...){
       ** compile-time maximum mmap size set by the SQLITE_MAX_MMAP_SIZE
       ** compile-time option.
       */
-      if( mxMmap<0 || mxMmap>SQLITE_MAX_MMAP_SIZE ) mxMmap = SQLITE_MAX_MMAP_SIZE;
+      if( mxMmap<0 || mxMmap>SQLITE_MAX_MMAP_SIZE ){
+        mxMmap = SQLITE_MAX_MMAP_SIZE;
+      }
       if( szMmap<0 ) szMmap = SQLITE_DEFAULT_MMAP_SIZE;
       if( szMmap>mxMmap) szMmap = mxMmap;
       sqlite3GlobalConfig.mxMmap = mxMmap;
@@ -1417,7 +1422,7 @@ int sqlite3_busy_handler(
   void *pArg
 ){
 #ifdef SQLITE_ENABLE_API_ARMOR
-  if( !sqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE;
+  if( !sqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT;
 #endif
   sqlite3_mutex_enter(db->mutex);
   db->busyHandler.xFunc = xBusy;
@@ -2423,7 +2428,19 @@ int sqlite3ParseUri(
     if( !zFile ) return SQLITE_NOMEM;
 
     iIn = 5;
-#ifndef SQLITE_ALLOW_URI_AUTHORITY
+#ifdef SQLITE_ALLOW_URI_AUTHORITY
+    if( strncmp(zUri+5, "///", 3)==0 ){
+      iIn = 7;
+      /* The following condition causes URIs with five leading / characters
+      ** like file://///host/path to be converted into UNCs like //host/path.
+      ** The correct URI for that UNC has only two or four leading / characters
+      ** file://host/path or file:////host/path.  But 5 leading slashes is a 
+      ** common error, we are told, so we handle it as a special case. */
+      if( strncmp(zUri+7, "///", 3)==0 ){ iIn++; }
+    }else if( strncmp(zUri+5, "//localhost/", 12)==0 ){
+      iIn = 16;
+    }
+#else
     /* Discard the scheme and authority segments of the URI. */
     if( zUri[5]=='/' && zUri[6]=='/' ){
       iIn = 7;
@@ -2710,6 +2727,9 @@ static int openDatabase(
 #if !defined(SQLITE_DEFAULT_AUTOMATIC_INDEX) || SQLITE_DEFAULT_AUTOMATIC_INDEX
                  | SQLITE_AutoIndex
 #endif
+#if SQLITE_DEFAULT_CKPTFULLFSYNC
+                 | SQLITE_CkptFullFSync
+#endif
 #if SQLITE_DEFAULT_FILE_FORMAT<4
                  | SQLITE_LegacyFileFmt
 #endif
@@ -2869,7 +2889,8 @@ static int openDatabase(
 opendb_out:
   sqlite3_free(zOpen);
   if( db ){
-    assert( db->mutex!=0 || isThreadsafe==0 || sqlite3GlobalConfig.bFullMutex==0 );
+    assert( db->mutex!=0 || isThreadsafe==0
+           || sqlite3GlobalConfig.bFullMutex==0 );
     sqlite3_mutex_leave(db->mutex);
   }
   rc = sqlite3_errcode(db);
@@ -3151,13 +3172,19 @@ int sqlite3_table_column_metadata(
   Table *pTab = 0;
   Column *pCol = 0;
   int iCol = 0;
-
   char const *zDataType = 0;
   char const *zCollSeq = 0;
   int notnull = 0;
   int primarykey = 0;
   int autoinc = 0;
 
+
+#ifdef SQLITE_ENABLE_API_ARMOR
+  if( !sqlite3SafetyCheckOk(db) || zTableName==0 ){
+    return SQLITE_MISUSE_BKPT;
+  }
+#endif
+
   /* Ensure the database schema has been loaded */
   sqlite3_mutex_enter(db->mutex);
   sqlite3BtreeEnterAll(db);
@@ -3304,7 +3331,7 @@ int sqlite3_file_control(sqlite3 *db, const char *zDbName, int op, void *pArg){
     sqlite3BtreeLeave(pBtree);
   }
   sqlite3_mutex_leave(db->mutex);
-  return rc;   
+  return rc;
 }
 
 /*
@@ -3608,7 +3635,7 @@ int sqlite3_test_control(int op, ...){
       break;
     }
 
-    /*   sqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, db, dbName, onOff, tnum);
+    /*  sqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, db, dbName, onOff, tnum);
     **
     ** This test control is used to create imposter tables.  "db" is a pointer
     ** to the database connection.  dbName is the database name (ex: "main" or
@@ -3617,8 +3644,8 @@ int sqlite3_test_control(int op, ...){
     ** table should connect.
     **
     ** Enable imposter mode only when the schema has already been parsed.  Then
-    ** run a single CREATE TABLE statement to construct the imposter table in the
-    ** parsed schema.  Then turn imposter mode back off again.
+    ** run a single CREATE TABLE statement to construct the imposter table in
+    ** the parsed schema.  Then turn imposter mode back off again.
     **
     ** If onOff==0 and tnum>0 then reset the schema for all databases, causing
     ** the schema to be reparsed the next time it is needed.  This has the
@@ -3626,12 +3653,14 @@ int sqlite3_test_control(int op, ...){
     */
     case SQLITE_TESTCTRL_IMPOSTER: {
       sqlite3 *db = va_arg(ap, sqlite3*);
+      sqlite3_mutex_enter(db->mutex);
       db->init.iDb = sqlite3FindDbName(db, va_arg(ap,const char*));
       db->init.busy = db->init.imposterTable = va_arg(ap,int);
       db->init.newTnum = va_arg(ap,int);
       if( db->init.busy==0 && db->init.newTnum>0 ){
         sqlite3ResetAllSchemasOfConnection(db);
       }
+      sqlite3_mutex_leave(db->mutex);
       break;
     }
   }
diff --git a/src/mutex_noop.c b/src/mutex_noop.c
index 1a900c225a..7f68aea6c1 100644
--- a/src/mutex_noop.c
+++ b/src/mutex_noop.c
@@ -120,8 +120,12 @@ static sqlite3_mutex *debugMutexAlloc(int id){
       break;
     }
     default: {
-      assert( id-2 >= 0 );
-      assert( id-2 < (int)(sizeof(aStatic)/sizeof(aStatic[0])) );
+#ifdef SQLITE_ENABLE_API_ARMOR
+      if( id-2<0 || id-2>=ArraySize(aStatic) ){
+        (void)SQLITE_MISUSE_BKPT;
+        return 0;
+      }
+#endif
       pNew = &aStatic[id-2];
       pNew->id = id;
       break;
@@ -136,8 +140,13 @@ static sqlite3_mutex *debugMutexAlloc(int id){
 static void debugMutexFree(sqlite3_mutex *pX){
   sqlite3_debug_mutex *p = (sqlite3_debug_mutex*)pX;
   assert( p->cnt==0 );
-  assert( p->id==SQLITE_MUTEX_FAST || p->id==SQLITE_MUTEX_RECURSIVE );
-  sqlite3_free(p);
+  if( p->id==SQLITE_MUTEX_RECURSIVE || p->id==SQLITE_MUTEX_FAST ){
+    sqlite3_free(p);
+  }else{
+#ifdef SQLITE_ENABLE_API_ARMOR
+    (void)SQLITE_MISUSE_BKPT;
+#endif
+  }
 }
 
 /*
diff --git a/src/mutex_unix.c b/src/mutex_unix.c
index c936914d8a..e08448e022 100644
--- a/src/mutex_unix.c
+++ b/src/mutex_unix.c
@@ -40,8 +40,10 @@
 */
 struct sqlite3_mutex {
   pthread_mutex_t mutex;     /* Mutex controlling the lock */
-#if SQLITE_MUTEX_NREF
+#if SQLITE_MUTEX_NREF || defined(SQLITE_ENABLE_API_ARMOR)
   int id;                    /* Mutex type */
+#endif
+#if SQLITE_MUTEX_NREF
   volatile int nRef;         /* Number of entrances */
   volatile pthread_t owner;  /* Thread that is within this mutex */
   int trace;                 /* True to trace changes */
@@ -157,9 +159,6 @@ static sqlite3_mutex *pthreadMutexAlloc(int iType){
         pthread_mutexattr_settype(&recursiveAttr, PTHREAD_MUTEX_RECURSIVE);
         pthread_mutex_init(&p->mutex, &recursiveAttr);
         pthread_mutexattr_destroy(&recursiveAttr);
-#endif
-#if SQLITE_MUTEX_NREF
-        p->id = iType;
 #endif
       }
       break;
@@ -167,9 +166,6 @@ static sqlite3_mutex *pthreadMutexAlloc(int iType){
     case SQLITE_MUTEX_FAST: {
       p = sqlite3MallocZero( sizeof(*p) );
       if( p ){
-#if SQLITE_MUTEX_NREF
-        p->id = iType;
-#endif
         pthread_mutex_init(&p->mutex, 0);
       }
       break;
@@ -182,12 +178,12 @@ static sqlite3_mutex *pthreadMutexAlloc(int iType){
       }
 #endif
       p = &staticMutexes[iType-2];
-#if SQLITE_MUTEX_NREF
-      p->id = iType;
-#endif
       break;
     }
   }
+#if SQLITE_MUTEX_NREF || defined(SQLITE_ENABLE_API_ARMOR)
+  if( p ) p->id = iType;
+#endif
   return p;
 }
 
@@ -199,9 +195,18 @@ static sqlite3_mutex *pthreadMutexAlloc(int iType){
 */
 static void pthreadMutexFree(sqlite3_mutex *p){
   assert( p->nRef==0 );
-  assert( p->id==SQLITE_MUTEX_FAST || p->id==SQLITE_MUTEX_RECURSIVE );
-  pthread_mutex_destroy(&p->mutex);
-  sqlite3_free(p);
+#if SQLITE_ENABLE_API_ARMOR
+  if( p->id==SQLITE_MUTEX_FAST || p->id==SQLITE_MUTEX_RECURSIVE )
+#endif
+  {
+    pthread_mutex_destroy(&p->mutex);
+    sqlite3_free(p);
+  }
+#ifdef SQLITE_ENABLE_API_ARMOR
+  else{
+    (void)SQLITE_MISUSE_BKPT;
+  }
+#endif
 }
 
 /*
diff --git a/src/mutex_w32.c b/src/mutex_w32.c
index a799c86159..6786614d8e 100644
--- a/src/mutex_w32.c
+++ b/src/mutex_w32.c
@@ -194,8 +194,8 @@ static sqlite3_mutex *winMutexAlloc(int iType){
     case SQLITE_MUTEX_RECURSIVE: {
       p = sqlite3MallocZero( sizeof(*p) );
       if( p ){
-#ifdef SQLITE_DEBUG
         p->id = iType;
+#ifdef SQLITE_DEBUG
 #ifdef SQLITE_WIN32_MUTEX_TRACE_DYNAMIC
         p->trace = 1;
 #endif
@@ -215,12 +215,9 @@ static sqlite3_mutex *winMutexAlloc(int iType){
         return 0;
       }
 #endif
-      assert( iType-2 >= 0 );
-      assert( iType-2 < ArraySize(winMutex_staticMutexes) );
-      assert( winMutex_isInit==1 );
       p = &winMutex_staticMutexes[iType-2];
-#ifdef SQLITE_DEBUG
       p->id = iType;
+#ifdef SQLITE_DEBUG
 #ifdef SQLITE_WIN32_MUTEX_TRACE_STATIC
       p->trace = 1;
 #endif
@@ -239,13 +236,15 @@ static sqlite3_mutex *winMutexAlloc(int iType){
 */
 static void winMutexFree(sqlite3_mutex *p){
   assert( p );
-#ifdef SQLITE_DEBUG
   assert( p->nRef==0 && p->owner==0 );
-  assert( p->id==SQLITE_MUTEX_FAST || p->id==SQLITE_MUTEX_RECURSIVE );
+  if( p->id==SQLITE_MUTEX_FAST || p->id==SQLITE_MUTEX_RECURSIVE ){
+    DeleteCriticalSection(&p->mutex);
+    sqlite3_free(p);
+  }else{
+#ifdef SQLITE_ENABLE_API_ARMOR
+    (void)SQLITE_MISUSE_BKPT;
 #endif
-  assert( winMutex_isInit==1 );
-  DeleteCriticalSection(&p->mutex);
-  sqlite3_free(p);
+  }
 }
 
 /*
diff --git a/src/os_unix.c b/src/os_unix.c
index ddd6a802eb..16cb935dec 100644
--- a/src/os_unix.c
+++ b/src/os_unix.c
@@ -71,18 +71,6 @@
 #  endif
 #endif
 
-/*
-** Define the OS_VXWORKS pre-processor macro to 1 if building on 
-** vxworks, or 0 otherwise.
-*/
-#ifndef OS_VXWORKS
-#  if defined(__RTP__) || defined(_WRS_KERNEL)
-#    define OS_VXWORKS 1
-#  else
-#    define OS_VXWORKS 0
-#  endif
-#endif
-
 /*
 ** standard include files.
 */
@@ -97,18 +85,19 @@
 # include <sys/mman.h>
 #endif
 
-#if SQLITE_ENABLE_LOCKING_STYLE || OS_VXWORKS
+#if SQLITE_ENABLE_LOCKING_STYLE
 # include <sys/ioctl.h>
-# if OS_VXWORKS
-#  include <semaphore.h>
-#  include <limits.h>
-# else
-#  include <sys/file.h>
-#  include <sys/param.h>
-# endif
+# include <sys/file.h>
+# include <sys/param.h>
 #endif /* SQLITE_ENABLE_LOCKING_STYLE */
 
-#if defined(__APPLE__) || (SQLITE_ENABLE_LOCKING_STYLE && !OS_VXWORKS)
+#if OS_VXWORKS
+# include <sys/ioctl.h>
+# include <semaphore.h>
+# include <limits.h>
+#endif /* OS_VXWORKS */
+
+#if defined(__APPLE__) || SQLITE_ENABLE_LOCKING_STYLE
 # include <sys/mount.h>
 #endif
 
@@ -149,6 +138,10 @@
 */
 #define MAX_PATHNAME 512
 
+/* Always cast the getpid() return type for compatibility with
+** kernel modules in VxWorks. */
+#define osGetpid(X) (pid_t)getpid()
+
 /*
 ** Only set the lastErrno if the error code is a real error and not 
 ** a normal expected return code of SQLITE_BUSY or SQLITE_OK
@@ -237,7 +230,7 @@ struct unixFile {
 ** method was called.  If xOpen() is called from a different process id,
 ** indicating that a fork() has occurred, the PRNG will be reset.
 */
-static int randomnessPid = 0;
+static pid_t randomnessPid = 0;
 
 /*
 ** Allowed values for the unixFile.ctrlFlags bitmask:
@@ -254,7 +247,8 @@ static int randomnessPid = 0;
 #define UNIXFILE_DELETE      0x20     /* Delete on close */
 #define UNIXFILE_URI         0x40     /* Filename might have query parameters */
 #define UNIXFILE_NOLOCK      0x80     /* Do no file locking */
-#define UNIXFILE_WARNED    0x0100     /* verifyDbFile() warnings have been issued */
+#define UNIXFILE_WARNED    0x0100     /* verifyDbFile() warnings issued */
+#define UNIXFILE_BLOCK     0x0200     /* Next SHM lock might block */
 
 /*
 ** Include code that is common to all os_*.c files
@@ -385,7 +379,7 @@ static struct unix_syscall {
   { "read",         (sqlite3_syscall_ptr)read,       0  },
 #define osRead      ((ssize_t(*)(int,void*,size_t))aSyscall[8].pCurrent)
 
-#if defined(USE_PREAD) || (SQLITE_ENABLE_LOCKING_STYLE && !OS_VXWORKS)
+#if defined(USE_PREAD) || SQLITE_ENABLE_LOCKING_STYLE
   { "pread",        (sqlite3_syscall_ptr)pread,      0  },
 #else
   { "pread",        (sqlite3_syscall_ptr)0,          0  },
@@ -402,7 +396,7 @@ static struct unix_syscall {
   { "write",        (sqlite3_syscall_ptr)write,      0  },
 #define osWrite     ((ssize_t(*)(int,const void*,size_t))aSyscall[11].pCurrent)
 
-#if defined(USE_PREAD) || (SQLITE_ENABLE_LOCKING_STYLE && !OS_VXWORKS)
+#if defined(USE_PREAD) || SQLITE_ENABLE_LOCKING_STYLE
   { "pwrite",       (sqlite3_syscall_ptr)pwrite,     0  },
 #else
   { "pwrite",       (sqlite3_syscall_ptr)0,          0  },
@@ -717,9 +711,9 @@ static int lockTrace(int fd, int op, struct flock *p){
 /*
 ** Retry ftruncate() calls that fail due to EINTR
 **
-** All calls to ftruncate() within this file should be made through this wrapper.
-** On the Android platform, bypassing the logic below could lead to a corrupt
-** database.
+** All calls to ftruncate() within this file should be made through
+** this wrapper.  On the Android platform, bypassing the logic below
+** could lead to a corrupt database.
 */
 static int robust_ftruncate(int h, sqlite3_int64 sz){
   int rc;
@@ -1178,6 +1172,14 @@ static void robust_close(unixFile *pFile, int h, int lineno){
   }
 }
 
+/*
+** Set the pFile->lastErrno.  Do this in a subroutine as that provides
+** a convenient place to set a breakpoint.
+*/
+static void storeLastErrno(unixFile *pFile, int error){
+  pFile->lastErrno = error;
+}
+
 /*
 ** Close all file descriptors accumuated in the unixInodeInfo->pUnused list.
 */ 
@@ -1251,7 +1253,7 @@ static int findInodeInfo(
   fd = pFile->h;
   rc = osFstat(fd, &statbuf);
   if( rc!=0 ){
-    pFile->lastErrno = errno;
+    storeLastErrno(pFile, errno);
 #ifdef EOVERFLOW
     if( pFile->lastErrno==EOVERFLOW ) return SQLITE_NOLFS;
 #endif
@@ -1272,12 +1274,12 @@ static int findInodeInfo(
   if( statbuf.st_size==0 && (pFile->fsFlags & SQLITE_FSFLAGS_IS_MSDOS)!=0 ){
     do{ rc = osWrite(fd, "S", 1); }while( rc<0 && errno==EINTR );
     if( rc!=1 ){
-      pFile->lastErrno = errno;
+      storeLastErrno(pFile, errno);
       return SQLITE_IOERR;
     }
     rc = osFstat(fd, &statbuf);
     if( rc!=0 ){
-      pFile->lastErrno = errno;
+      storeLastErrno(pFile, errno);
       return SQLITE_IOERR;
     }
   }
@@ -1400,7 +1402,7 @@ static int unixCheckReservedLock(sqlite3_file *id, int *pResOut){
     lock.l_type = F_WRLCK;
     if( osFcntl(pFile->h, F_GETLK, &lock) ){
       rc = SQLITE_IOERR_CHECKRESERVEDLOCK;
-      pFile->lastErrno = errno;
+      storeLastErrno(pFile, errno);
     } else if( lock.l_type!=F_UNLCK ){
       reserved = 1;
     }
@@ -1533,7 +1535,8 @@ static int unixLock(sqlite3_file *id, int eFileLock){
   assert( pFile );
   OSTRACE(("LOCK    %d %s was %s(%s,%d) pid=%d (unix)\n", pFile->h,
       azFileLock(eFileLock), azFileLock(pFile->eFileLock),
-      azFileLock(pFile->pInode->eFileLock), pFile->pInode->nShared , getpid()));
+      azFileLock(pFile->pInode->eFileLock), pFile->pInode->nShared,
+      osGetpid()));
 
   /* If there is already a lock of this type or more restrictive on the
   ** unixFile, do nothing. Don't use the end_lock: exit path, as
@@ -1600,7 +1603,7 @@ static int unixLock(sqlite3_file *id, int eFileLock){
       tErrno = errno;
       rc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_LOCK);
       if( rc!=SQLITE_BUSY ){
-        pFile->lastErrno = tErrno;
+        storeLastErrno(pFile, tErrno);
       }
       goto end_lock;
     }
@@ -1635,7 +1638,7 @@ static int unixLock(sqlite3_file *id, int eFileLock){
 
     if( rc ){
       if( rc!=SQLITE_BUSY ){
-        pFile->lastErrno = tErrno;
+        storeLastErrno(pFile, tErrno);
       }
       goto end_lock;
     }else{
@@ -1668,7 +1671,7 @@ static int unixLock(sqlite3_file *id, int eFileLock){
       tErrno = errno;
       rc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_LOCK);
       if( rc!=SQLITE_BUSY ){
-        pFile->lastErrno = tErrno;
+        storeLastErrno(pFile, tErrno);
       }
     }
   }
@@ -1741,7 +1744,7 @@ static int posixUnlock(sqlite3_file *id, int eFileLock, int handleNFSUnlock){
   assert( pFile );
   OSTRACE(("UNLOCK  %d %d was %d(%d,%d) pid=%d (unix)\n", pFile->h, eFileLock,
       pFile->eFileLock, pFile->pInode->eFileLock, pFile->pInode->nShared,
-      getpid()));
+      osGetpid()));
 
   assert( eFileLock<=SHARED_LOCK );
   if( pFile->eFileLock<=eFileLock ){
@@ -1775,7 +1778,6 @@ static int posixUnlock(sqlite3_file *id, int eFileLock, int handleNFSUnlock){
     **  4:   [RRRR.]
     */
     if( eFileLock==SHARED_LOCK ){
-
 #if !defined(__APPLE__) || !SQLITE_ENABLE_LOCKING_STYLE
       (void)handleNFSUnlock;
       assert( handleNFSUnlock==0 );
@@ -1793,7 +1795,7 @@ static int posixUnlock(sqlite3_file *id, int eFileLock, int handleNFSUnlock){
           tErrno = errno;
           rc = SQLITE_IOERR_UNLOCK;
           if( IS_LOCK_ERROR(rc) ){
-            pFile->lastErrno = tErrno;
+            storeLastErrno(pFile, tErrno);
           }
           goto end_unlock;
         }
@@ -1805,7 +1807,7 @@ static int posixUnlock(sqlite3_file *id, int eFileLock, int handleNFSUnlock){
           tErrno = errno;
           rc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_RDLOCK);
           if( IS_LOCK_ERROR(rc) ){
-            pFile->lastErrno = tErrno;
+            storeLastErrno(pFile, tErrno);
           }
           goto end_unlock;
         }
@@ -1817,7 +1819,7 @@ static int posixUnlock(sqlite3_file *id, int eFileLock, int handleNFSUnlock){
           tErrno = errno;
           rc = SQLITE_IOERR_UNLOCK;
           if( IS_LOCK_ERROR(rc) ){
-            pFile->lastErrno = tErrno;
+            storeLastErrno(pFile, tErrno);
           }
           goto end_unlock;
         }
@@ -1836,7 +1838,7 @@ static int posixUnlock(sqlite3_file *id, int eFileLock, int handleNFSUnlock){
           ** SQLITE_BUSY would confuse the upper layer (in practice it causes 
           ** an assert to fail). */ 
           rc = SQLITE_IOERR_RDLOCK;
-          pFile->lastErrno = errno;
+          storeLastErrno(pFile, errno);
           goto end_unlock;
         }
       }
@@ -1849,7 +1851,7 @@ static int posixUnlock(sqlite3_file *id, int eFileLock, int handleNFSUnlock){
       pInode->eFileLock = SHARED_LOCK;
     }else{
       rc = SQLITE_IOERR_UNLOCK;
-      pFile->lastErrno = errno;
+      storeLastErrno(pFile, errno);
       goto end_unlock;
     }
   }
@@ -1867,7 +1869,7 @@ static int posixUnlock(sqlite3_file *id, int eFileLock, int handleNFSUnlock){
         pInode->eFileLock = NO_LOCK;
       }else{
         rc = SQLITE_IOERR_UNLOCK;
-        pFile->lastErrno = errno;
+        storeLastErrno(pFile, errno);
         pInode->eFileLock = NO_LOCK;
         pFile->eFileLock = NO_LOCK;
       }
@@ -2142,7 +2144,7 @@ static int dotlockLock(sqlite3_file *id, int eFileLock) {
     } else {
       rc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_LOCK);
       if( IS_LOCK_ERROR(rc) ){
-        pFile->lastErrno = tErrno;
+        storeLastErrno(pFile, tErrno);
       }
     }
     return rc;
@@ -2169,7 +2171,7 @@ static int dotlockUnlock(sqlite3_file *id, int eFileLock) {
 
   assert( pFile );
   OSTRACE(("UNLOCK  %d %d was %d pid=%d (dotlock)\n", pFile->h, eFileLock,
-           pFile->eFileLock, getpid()));
+           pFile->eFileLock, osGetpid()));
   assert( eFileLock<=SHARED_LOCK );
   
   /* no-op if possible */
@@ -2196,7 +2198,7 @@ static int dotlockUnlock(sqlite3_file *id, int eFileLock) {
       rc = SQLITE_IOERR_UNLOCK;
     }
     if( IS_LOCK_ERROR(rc) ){
-      pFile->lastErrno = tErrno;
+      storeLastErrno(pFile, tErrno);
     }
     return rc; 
   }
@@ -2232,10 +2234,9 @@ static int dotlockClose(sqlite3_file *id) {
 ** still works when you do this, but concurrency is reduced since
 ** only a single process can be reading the database at a time.
 **
-** Omit this section if SQLITE_ENABLE_LOCKING_STYLE is turned off or if
-** compiling for VXWORKS.
+** Omit this section if SQLITE_ENABLE_LOCKING_STYLE is turned off
 */
-#if SQLITE_ENABLE_LOCKING_STYLE && !OS_VXWORKS
+#if SQLITE_ENABLE_LOCKING_STYLE
 
 /*
 ** Retry flock() calls that fail with EINTR
@@ -2283,7 +2284,7 @@ static int flockCheckReservedLock(sqlite3_file *id, int *pResOut){
         /* unlock failed with an error */
         lrc = SQLITE_IOERR_UNLOCK; 
         if( IS_LOCK_ERROR(lrc) ){
-          pFile->lastErrno = tErrno;
+          storeLastErrno(pFile, tErrno);
           rc = lrc;
         }
       }
@@ -2293,7 +2294,7 @@ static int flockCheckReservedLock(sqlite3_file *id, int *pResOut){
       /* someone else might have it reserved */
       lrc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_LOCK); 
       if( IS_LOCK_ERROR(lrc) ){
-        pFile->lastErrno = tErrno;
+        storeLastErrno(pFile, tErrno);
         rc = lrc;
       }
     }
@@ -2359,7 +2360,7 @@ static int flockLock(sqlite3_file *id, int eFileLock) {
     /* didn't get, must be busy */
     rc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_LOCK);
     if( IS_LOCK_ERROR(rc) ){
-      pFile->lastErrno = tErrno;
+      storeLastErrno(pFile, tErrno);
     }
   } else {
     /* got it, set the type and return ok */
@@ -2388,7 +2389,7 @@ static int flockUnlock(sqlite3_file *id, int eFileLock) {
   
   assert( pFile );
   OSTRACE(("UNLOCK  %d %d was %d pid=%d (flock)\n", pFile->h, eFileLock,
-           pFile->eFileLock, getpid()));
+           pFile->eFileLock, osGetpid()));
   assert( eFileLock<=SHARED_LOCK );
   
   /* no-op if possible */
@@ -2449,7 +2450,7 @@ static int flockClose(sqlite3_file *id) {
 ** to a non-zero value otherwise *pResOut is set to zero.  The return value
 ** is set to SQLITE_OK unless an I/O error occurs during lock checking.
 */
-static int semCheckReservedLock(sqlite3_file *id, int *pResOut) {
+static int semXCheckReservedLock(sqlite3_file *id, int *pResOut) {
   int rc = SQLITE_OK;
   int reserved = 0;
   unixFile *pFile = (unixFile*)id;
@@ -2471,7 +2472,7 @@ static int semCheckReservedLock(sqlite3_file *id, int *pResOut) {
       int tErrno = errno;
       if( EAGAIN != tErrno ){
         rc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_CHECKRESERVEDLOCK);
-        pFile->lastErrno = tErrno;
+        storeLastErrno(pFile, tErrno);
       } else {
         /* someone else has the lock when we are in NO_LOCK */
         reserved = (pFile->eFileLock < SHARED_LOCK);
@@ -2516,7 +2517,7 @@ static int semCheckReservedLock(sqlite3_file *id, int *pResOut) {
 ** This routine will only increase a lock.  Use the sqlite3OsUnlock()
 ** routine to lower a locking level.
 */
-static int semLock(sqlite3_file *id, int eFileLock) {
+static int semXLock(sqlite3_file *id, int eFileLock) {
   unixFile *pFile = (unixFile*)id;
   sem_t *pSem = pFile->pInode->pSem;
   int rc = SQLITE_OK;
@@ -2549,14 +2550,14 @@ static int semLock(sqlite3_file *id, int eFileLock) {
 ** If the locking level of the file descriptor is already at or below
 ** the requested locking level, this routine is a no-op.
 */
-static int semUnlock(sqlite3_file *id, int eFileLock) {
+static int semXUnlock(sqlite3_file *id, int eFileLock) {
   unixFile *pFile = (unixFile*)id;
   sem_t *pSem = pFile->pInode->pSem;
 
   assert( pFile );
   assert( pSem );
   OSTRACE(("UNLOCK  %d %d was %d pid=%d (sem)\n", pFile->h, eFileLock,
-           pFile->eFileLock, getpid()));
+           pFile->eFileLock, osGetpid()));
   assert( eFileLock<=SHARED_LOCK );
   
   /* no-op if possible */
@@ -2575,7 +2576,7 @@ static int semUnlock(sqlite3_file *id, int eFileLock) {
     int rc, tErrno = errno;
     rc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_UNLOCK);
     if( IS_LOCK_ERROR(rc) ){
-      pFile->lastErrno = tErrno;
+      storeLastErrno(pFile, tErrno);
     }
     return rc; 
   }
@@ -2586,10 +2587,10 @@ static int semUnlock(sqlite3_file *id, int eFileLock) {
 /*
  ** Close a file.
  */
-static int semClose(sqlite3_file *id) {
+static int semXClose(sqlite3_file *id) {
   if( id ){
     unixFile *pFile = (unixFile*)id;
-    semUnlock(id, NO_LOCK);
+    semXUnlock(id, NO_LOCK);
     assert( pFile );
     unixEnterMutex();
     releaseInodeInfo(pFile);
@@ -2677,7 +2678,7 @@ static int afpSetLock(
                     setLockFlag ? SQLITE_IOERR_LOCK : SQLITE_IOERR_UNLOCK);
 #endif /* SQLITE_IGNORE_AFP_LOCK_ERRORS */
     if( IS_LOCK_ERROR(rc) ){
-      pFile->lastErrno = tErrno;
+      storeLastErrno(pFile, tErrno);
     }
     return rc;
   } else {
@@ -2770,7 +2771,7 @@ static int afpLock(sqlite3_file *id, int eFileLock){
   assert( pFile );
   OSTRACE(("LOCK    %d %s was %s(%s,%d) pid=%d (afp)\n", pFile->h,
            azFileLock(eFileLock), azFileLock(pFile->eFileLock),
-           azFileLock(pInode->eFileLock), pInode->nShared , getpid()));
+           azFileLock(pInode->eFileLock), pInode->nShared , osGetpid()));
 
   /* If there is already a lock of this type or more restrictive on the
   ** unixFile, do nothing. Don't use the afp_end_lock: exit path, as
@@ -2860,7 +2861,7 @@ static int afpLock(sqlite3_file *id, int eFileLock){
     lrc2 = afpSetLock(context->dbPath, pFile, PENDING_BYTE, 1, 0);
     
     if( IS_LOCK_ERROR(lrc1) ) {
-      pFile->lastErrno = lrc1Errno;
+      storeLastErrno(pFile, lrc1Errno);
       rc = lrc1;
       goto afp_end_lock;
     } else if( IS_LOCK_ERROR(lrc2) ){
@@ -2956,7 +2957,7 @@ static int afpUnlock(sqlite3_file *id, int eFileLock) {
   assert( pFile );
   OSTRACE(("UNLOCK  %d %d was %d(%d,%d) pid=%d (afp)\n", pFile->h, eFileLock,
            pFile->eFileLock, pFile->pInode->eFileLock, pFile->pInode->nShared,
-           getpid()));
+           osGetpid()));
 
   assert( eFileLock<=SHARED_LOCK );
   if( pFile->eFileLock<=eFileLock ){
@@ -3147,9 +3148,9 @@ static int seekAndRead(unixFile *id, sqlite3_int64 offset, void *pBuf, int cnt){
     SimulateIOError( newOffset-- );
     if( newOffset!=offset ){
       if( newOffset == -1 ){
-        ((unixFile*)id)->lastErrno = errno;
+        storeLastErrno((unixFile*)id, errno);
       }else{
-        ((unixFile*)id)->lastErrno = 0;
+        storeLastErrno((unixFile*)id, 0);
       }
       return -1;
     }
@@ -3159,7 +3160,7 @@ static int seekAndRead(unixFile *id, sqlite3_int64 offset, void *pBuf, int cnt){
     if( got<0 ){
       if( errno==EINTR ){ got = 1; continue; }
       prior = 0;
-      ((unixFile*)id)->lastErrno = errno;
+      storeLastErrno((unixFile*)id,  errno);
       break;
     }else if( got>0 ){
       cnt -= got;
@@ -3224,7 +3225,7 @@ static int unixRead(
     /* lastErrno set by seekAndRead */
     return SQLITE_IOERR_READ;
   }else{
-    pFile->lastErrno = 0; /* not a system error */
+    storeLastErrno(pFile, 0);   /* not a system error */
     /* Unread parts of the buffer must be zero-filled */
     memset(&((char*)pBuf)[got], 0, amt-got);
     return SQLITE_IOERR_SHORT_READ;
@@ -3253,9 +3254,9 @@ static int seekAndWriteFd(
   TIMER_START;
 
 #if defined(USE_PREAD)
-  do{ rc = osPwrite(fd, pBuf, nBuf, iOff); }while( rc<0 && errno==EINTR );
+  do{ rc = (int)osPwrite(fd, pBuf, nBuf, iOff); }while( rc<0 && errno==EINTR );
 #elif defined(USE_PREAD64)
-  do{ rc = osPwrite64(fd, pBuf, nBuf, iOff);}while( rc<0 && errno==EINTR);
+  do{ rc = (int)osPwrite64(fd, pBuf, nBuf, iOff);}while( rc<0 && errno==EINTR);
 #else
   do{
     i64 iSeek = lseek(fd, iOff, SEEK_SET);
@@ -3365,7 +3366,7 @@ static int unixWrite(
       /* lastErrno set by seekAndWrite */
       return SQLITE_IOERR_WRITE;
     }else{
-      pFile->lastErrno = 0; /* not a system error */
+      storeLastErrno(pFile, 0); /* not a system error */
       return SQLITE_FULL;
     }
   }
@@ -3574,7 +3575,7 @@ static int unixSync(sqlite3_file *id, int flags){
   rc = full_fsync(pFile->h, isFullsync, isDataOnly);
   SimulateIOError( rc=1 );
   if( rc ){
-    pFile->lastErrno = errno;
+    storeLastErrno(pFile, errno);
     return unixLogError(SQLITE_IOERR_FSYNC, "full_fsync", pFile->zPath);
   }
 
@@ -3618,7 +3619,7 @@ static int unixTruncate(sqlite3_file *id, i64 nByte){
 
   rc = robust_ftruncate(pFile->h, nByte);
   if( rc ){
-    pFile->lastErrno = errno;
+    storeLastErrno(pFile, errno);
     return unixLogError(SQLITE_IOERR_TRUNCATE, "ftruncate", pFile->zPath);
   }else{
 #ifdef SQLITE_DEBUG
@@ -3658,7 +3659,7 @@ static int unixFileSize(sqlite3_file *id, i64 *pSize){
   rc = osFstat(((unixFile*)id)->h, &buf);
   SimulateIOError( rc=1 );
   if( rc!=0 ){
-    ((unixFile*)id)->lastErrno = errno;
+    storeLastErrno((unixFile*)id, errno);
     return SQLITE_IOERR_FSTAT;
   }
   *pSize = buf.st_size;
@@ -3694,7 +3695,9 @@ static int fcntlSizeHint(unixFile *pFile, i64 nByte){
     i64 nSize;                    /* Required file size */
     struct stat buf;              /* Used to hold return values of fstat() */
    
-    if( osFstat(pFile->h, &buf) ) return SQLITE_IOERR_FSTAT;
+    if( osFstat(pFile->h, &buf) ){
+      return SQLITE_IOERR_FSTAT;
+    }
 
     nSize = ((nByte+pFile->szChunk-1) / pFile->szChunk) * pFile->szChunk;
     if( nSize>(i64)buf.st_size ){
@@ -3741,7 +3744,7 @@ static int fcntlSizeHint(unixFile *pFile, i64 nByte){
     int rc;
     if( pFile->szChunk<=0 ){
       if( robust_ftruncate(pFile->h, nByte) ){
-        pFile->lastErrno = errno;
+        storeLastErrno(pFile, errno);
         return unixLogError(SQLITE_IOERR_TRUNCATE, "ftruncate", pFile->zPath);
       }
     }
@@ -3783,7 +3786,7 @@ static int unixFileControl(sqlite3_file *id, int op, void *pArg){
       *(int*)pArg = pFile->eFileLock;
       return SQLITE_OK;
     }
-    case SQLITE_LAST_ERRNO: {
+    case SQLITE_FCNTL_LAST_ERRNO: {
       *(int*)pArg = pFile->lastErrno;
       return SQLITE_OK;
     }
@@ -3852,8 +3855,8 @@ static int unixFileControl(sqlite3_file *id, int op, void *pArg){
     }
 #endif
 #if SQLITE_ENABLE_LOCKING_STYLE && defined(__APPLE__)
-    case SQLITE_SET_LOCKPROXYFILE:
-    case SQLITE_GET_LOCKPROXYFILE: {
+    case SQLITE_FCNTL_SET_LOCKPROXYFILE:
+    case SQLITE_FCNTL_GET_LOCKPROXYFILE: {
       return proxyFileControl(id,op,pArg);
     }
 #endif /* SQLITE_ENABLE_LOCKING_STYLE && defined(__APPLE__) */
@@ -3993,7 +3996,9 @@ static int unixDeviceCharacteristics(sqlite3_file *id){
 ** Instead, it should be called via macro osGetpagesize().
 */
 static int unixGetpagesize(void){
-#if defined(_BSD_SOURCE)
+#if OS_VXWORKS
+  return 1024;
+#elif defined(_BSD_SOURCE)
   return getpagesize();
 #else
   return (int)sysconf(_SC_PAGESIZE);
@@ -4086,15 +4091,17 @@ struct unixShm {
 ** otherwise.
 */
 static int unixShmSystemLock(
-  unixShmNode *pShmNode, /* Apply locks to this open shared-memory segment */
+  unixFile *pFile,       /* Open connection to the WAL file */
   int lockType,          /* F_UNLCK, F_RDLCK, or F_WRLCK */
   int ofst,              /* First byte of the locking range */
   int n                  /* Number of bytes to lock */
 ){
-  struct flock f;       /* The posix advisory locking structure */
-  int rc = SQLITE_OK;   /* Result code form fcntl() */
+  unixShmNode *pShmNode; /* Apply locks to this open shared-memory segment */
+  struct flock f;        /* The posix advisory locking structure */
+  int rc = SQLITE_OK;    /* Result code form fcntl() */
 
   /* Access to the unixShmNode object is serialized by the caller */
+  pShmNode = pFile->pInode->pShmNode;
   assert( sqlite3_mutex_held(pShmNode->mutex) || pShmNode->nRef==0 );
 
   /* Shared locks never span more than one byte */
@@ -4104,6 +4111,7 @@ static int unixShmSystemLock(
   assert( n>=1 && n<SQLITE_SHM_NLOCK );
 
   if( pShmNode->h>=0 ){
+    int lkType;
     /* Initialize the locking parameters */
     memset(&f, 0, sizeof(f));
     f.l_type = lockType;
@@ -4111,8 +4119,10 @@ static int unixShmSystemLock(
     f.l_start = ofst;
     f.l_len = n;
 
-    rc = osFcntl(pShmNode->h, F_SETLK, &f);
+    lkType = (pFile->ctrlFlags & UNIXFILE_BLOCK)!=0 ? F_SETLKW : F_SETLK;
+    rc = osFcntl(pShmNode->h, lkType, &f);
     rc = (rc!=(-1)) ? SQLITE_OK : SQLITE_BUSY;
+    pFile->ctrlFlags &= ~UNIXFILE_BLOCK;
   }
 
   /* Update the global lock state and do debug tracing */
@@ -4258,6 +4268,9 @@ static int unixOpenSharedMemory(unixFile *pDbFd){
   pShmNode = pInode->pShmNode;
   if( pShmNode==0 ){
     struct stat sStat;                 /* fstat() info for database file */
+#ifndef SQLITE_SHM_DIRECTORY
+    const char *zBasePath = pDbFd->zPath;
+#endif
 
     /* Call fstat() to figure out the permissions on the database file. If
     ** a new *-shm file is created, an attempt will be made to create it
@@ -4271,7 +4284,7 @@ static int unixOpenSharedMemory(unixFile *pDbFd){
 #ifdef SQLITE_SHM_DIRECTORY
     nShmFilename = sizeof(SQLITE_SHM_DIRECTORY) + 31;
 #else
-    nShmFilename = 6 + (int)strlen(pDbFd->zPath);
+    nShmFilename = 6 + (int)strlen(zBasePath);
 #endif
     pShmNode = sqlite3_malloc( sizeof(*pShmNode) + nShmFilename );
     if( pShmNode==0 ){
@@ -4285,7 +4298,7 @@ static int unixOpenSharedMemory(unixFile *pDbFd){
                      SQLITE_SHM_DIRECTORY "/sqlite-shm-%x-%x",
                      (u32)sStat.st_ino, (u32)sStat.st_dev);
 #else
-    sqlite3_snprintf(nShmFilename, zShmFilename, "%s-shm", pDbFd->zPath);
+    sqlite3_snprintf(nShmFilename, zShmFilename, "%s-shm", zBasePath);
     sqlite3FileSuffix3(pDbFd->zPath, zShmFilename);
 #endif
     pShmNode->h = -1;
@@ -4319,13 +4332,13 @@ static int unixOpenSharedMemory(unixFile *pDbFd){
       ** If not, truncate the file to zero length. 
       */
       rc = SQLITE_OK;
-      if( unixShmSystemLock(pShmNode, F_WRLCK, UNIX_SHM_DMS, 1)==SQLITE_OK ){
+      if( unixShmSystemLock(pDbFd, F_WRLCK, UNIX_SHM_DMS, 1)==SQLITE_OK ){
         if( robust_ftruncate(pShmNode->h, 0) ){
           rc = unixLogError(SQLITE_IOERR_SHMOPEN, "ftruncate", zShmFilename);
         }
       }
       if( rc==SQLITE_OK ){
-        rc = unixShmSystemLock(pShmNode, F_RDLCK, UNIX_SHM_DMS, 1);
+        rc = unixShmSystemLock(pDbFd, F_RDLCK, UNIX_SHM_DMS, 1);
       }
       if( rc ) goto shm_open_err;
     }
@@ -4557,7 +4570,7 @@ static int unixShmLock(
 
     /* Unlock the system-level locks */
     if( (mask & allMask)==0 ){
-      rc = unixShmSystemLock(pShmNode, F_UNLCK, ofst+UNIX_SHM_BASE, n);
+      rc = unixShmSystemLock(pDbFd, F_UNLCK, ofst+UNIX_SHM_BASE, n);
     }else{
       rc = SQLITE_OK;
     }
@@ -4585,7 +4598,7 @@ static int unixShmLock(
     /* Get shared locks at the system level, if necessary */
     if( rc==SQLITE_OK ){
       if( (allShared & mask)==0 ){
-        rc = unixShmSystemLock(pShmNode, F_RDLCK, ofst+UNIX_SHM_BASE, n);
+        rc = unixShmSystemLock(pDbFd, F_RDLCK, ofst+UNIX_SHM_BASE, n);
       }else{
         rc = SQLITE_OK;
       }
@@ -4610,7 +4623,7 @@ static int unixShmLock(
     ** also mark the local connection as being locked.
     */
     if( rc==SQLITE_OK ){
-      rc = unixShmSystemLock(pShmNode, F_WRLCK, ofst+UNIX_SHM_BASE, n);
+      rc = unixShmSystemLock(pDbFd, F_WRLCK, ofst+UNIX_SHM_BASE, n);
       if( rc==SQLITE_OK ){
         assert( (p->sharedMask & mask)==0 );
         p->exclMask |= mask;
@@ -4619,7 +4632,7 @@ static int unixShmLock(
   }
   sqlite3_mutex_leave(pShmNode->mutex);
   OSTRACE(("SHM-LOCK shmid-%d, pid-%d got %03x,%03x\n",
-           p->id, getpid(), p->sharedMask, p->exclMask));
+           p->id, osGetpid(), p->sharedMask, p->exclMask));
   return rc;
 }
 
@@ -4678,7 +4691,9 @@ static int unixShmUnmap(
   assert( pShmNode->nRef>0 );
   pShmNode->nRef--;
   if( pShmNode->nRef==0 ){
-    if( deleteFlag && pShmNode->h>=0 ) osUnlink(pShmNode->zFilename);
+    if( deleteFlag && pShmNode->h>=0 ){
+      osUnlink(pShmNode->zFilename);
+    }
     unixShmPurge(pDbFd);
   }
   unixLeaveMutex();
@@ -4955,7 +4970,7 @@ static int unixUnfetch(sqlite3_file *fd, i64 iOff, void *p){
 **   *  An I/O method finder function called FINDER that returns a pointer
 **      to the METHOD object in the previous bullet.
 */
-#define IOMETHODS(FINDER, METHOD, VERSION, CLOSE, LOCK, UNLOCK, CKLOCK, SHMMAP) \
+#define IOMETHODS(FINDER,METHOD,VERSION,CLOSE,LOCK,UNLOCK,CKLOCK,SHMMAP)     \
 static const sqlite3_io_methods METHOD = {                                   \
    VERSION,                    /* iVersion */                                \
    CLOSE,                      /* xClose */                                  \
@@ -5020,7 +5035,7 @@ IOMETHODS(
   0                         /* xShmMap method */
 )
 
-#if SQLITE_ENABLE_LOCKING_STYLE && !OS_VXWORKS
+#if SQLITE_ENABLE_LOCKING_STYLE
 IOMETHODS(
   flockIoFinder,            /* Finder function name */
   flockIoMethods,           /* sqlite3_io_methods object name */
@@ -5038,10 +5053,10 @@ IOMETHODS(
   semIoFinder,              /* Finder function name */
   semIoMethods,             /* sqlite3_io_methods object name */
   1,                        /* shared memory is disabled */
-  semClose,                 /* xClose method */
-  semLock,                  /* xLock method */
-  semUnlock,                /* xUnlock method */
-  semCheckReservedLock,     /* xCheckReservedLock method */
+  semXClose,                /* xClose method */
+  semXLock,                 /* xLock method */
+  semXUnlock,               /* xUnlock method */
+  semXCheckReservedLock,    /* xCheckReservedLock method */
   0                         /* xShmMap method */
 )
 #endif
@@ -5165,15 +5180,13 @@ static const sqlite3_io_methods
 
 #endif /* defined(__APPLE__) && SQLITE_ENABLE_LOCKING_STYLE */
 
-#if OS_VXWORKS && SQLITE_ENABLE_LOCKING_STYLE
-/* 
-** This "finder" function attempts to determine the best locking strategy 
-** for the database file "filePath".  It then returns the sqlite3_io_methods
-** object that implements that strategy.
-**
-** This is for VXWorks only.
+#if OS_VXWORKS
+/*
+** This "finder" function for VxWorks checks to see if posix advisory
+** locking works.  If it does, then that is what is used.  If it does not
+** work, then fallback to named semaphore locking.
 */
-static const sqlite3_io_methods *autolockIoFinderImpl(
+static const sqlite3_io_methods *vxworksIoFinderImpl(
   const char *filePath,    /* name of the database file */
   unixFile *pNew           /* the open file object */
 ){
@@ -5199,9 +5212,9 @@ static const sqlite3_io_methods *autolockIoFinderImpl(
   }
 }
 static const sqlite3_io_methods 
-  *(*const autolockIoFinder)(const char*,unixFile*) = autolockIoFinderImpl;
+  *(*const vxworksIoFinder)(const char*,unixFile*) = vxworksIoFinderImpl;
 
-#endif /* OS_VXWORKS && SQLITE_ENABLE_LOCKING_STYLE */
+#endif /* OS_VXWORKS */
 
 /*
 ** An abstract type for a pointer to an IO method finder function:
@@ -5383,7 +5396,7 @@ static int fillInUnixFile(
   }
 #endif
   
-  pNew->lastErrno = 0;
+  storeLastErrno(pNew, 0);
 #if OS_VXWORKS
   if( rc!=SQLITE_OK ){
     if( h>=0 ) robust_close(pNew, h, __LINE__);
@@ -5714,8 +5727,8 @@ static int unixOpen(
   ** the same instant might all reset the PRNG.  But multiple resets
   ** are harmless.
   */
-  if( randomnessPid!=getpid() ){
-    randomnessPid = getpid();
+  if( randomnessPid!=osGetpid() ){
+    randomnessPid = osGetpid();
     sqlite3_randomness(0,0);
   }
 
@@ -5831,13 +5844,16 @@ static int unixOpen(
   
 #if defined(__APPLE__) || SQLITE_ENABLE_LOCKING_STYLE
   if( fstatfs(fd, &fsInfo) == -1 ){
-    ((unixFile*)pFile)->lastErrno = errno;
+    storeLastErrno(p, errno);
     robust_close(p, fd, __LINE__);
     return SQLITE_IOERR_ACCESS;
   }
   if (0 == strncmp("msdos", fsInfo.f_fstypename, 5)) {
     ((unixFile*)pFile)->fsFlags |= SQLITE_FSFLAGS_IS_MSDOS;
   }
+  if (0 == strncmp("exfat", fsInfo.f_fstypename, 5)) {
+    ((unixFile*)pFile)->fsFlags |= SQLITE_FSFLAGS_IS_MSDOS;
+  }
 #endif
 
   /* Set up appropriate ctrlFlags */
@@ -5860,19 +5876,6 @@ static int unixOpen(
     if( envforce!=NULL ){
       useProxy = atoi(envforce)>0;
     }else{
-      if( statfs(zPath, &fsInfo) == -1 ){
-        /* In theory, the close(fd) call is sub-optimal. If the file opened
-        ** with fd is a database file, and there are other connections open
-        ** on that file that are currently holding advisory locks on it,
-        ** then the call to close() will cancel those locks. In practice,
-        ** we're assuming that statfs() doesn't fail very often. At least
-        ** not while other file descriptors opened by the same process on
-        ** the same file are working.  */
-        p->lastErrno = errno;
-        robust_close(p, fd, __LINE__);
-        rc = SQLITE_IOERR_ACCESS;
-        goto open_finished;
-      }
       useProxy = !(fsInfo.f_flags&MNT_LOCAL);
     }
     if( useProxy ){
@@ -6116,7 +6119,7 @@ static int unixRandomness(sqlite3_vfs *NotUsed, int nBuf, char *zBuf){
   ** tests repeatable.
   */
   memset(zBuf, 0, nBuf);
-  randomnessPid = getpid();  
+  randomnessPid = osGetpid();  
 #if !defined(SQLITE_TEST)
   {
     int fd, got;
@@ -6298,9 +6301,10 @@ static int unixGetLastError(sqlite3_vfs *NotUsed, int NotUsed2, char *NotUsed3){
 **
 ** C APIs
 **
-**  sqlite3_file_control(db, dbname, SQLITE_SET_LOCKPROXYFILE,
+**  sqlite3_file_control(db, dbname, SQLITE_FCNTL_SET_LOCKPROXYFILE,
 **                       <proxy_path> | ":auto:");
-**  sqlite3_file_control(db, dbname, SQLITE_GET_LOCKPROXYFILE, &<proxy_path>);
+**  sqlite3_file_control(db, dbname, SQLITE_FCNTL_GET_LOCKPROXYFILE,
+**                       &<proxy_path>);
 **
 **
 ** SQL pragmas
@@ -6393,7 +6397,7 @@ static int unixGetLastError(sqlite3_vfs *NotUsed, int NotUsed2, char *NotUsed3){
 ** setting the environment variable SQLITE_FORCE_PROXY_LOCKING to 1 will
 ** force proxy locking to be used for every database file opened, and 0
 ** will force automatic proxy locking to be disabled for all database
-** files (explicitly calling the SQLITE_SET_LOCKPROXYFILE pragma or
+** files (explicitly calling the SQLITE_FCNTL_SET_LOCKPROXYFILE pragma or
 ** sqlite_file_control API is not affected by SQLITE_FORCE_PROXY_LOCKING).
 */
 
@@ -6414,6 +6418,7 @@ struct proxyLockingContext {
   char *lockProxyPath;         /* Name of the proxy lock file */
   char *dbPath;                /* Name of the open file */
   int conchHeld;               /* 1 if the conch is held, -1 if lockless */
+  int nFails;                  /* Number of conch taking failures */
   void *oldLockingContext;     /* Original lockingcontext to restore on close */
   sqlite3_io_methods const *pOldMethod;     /* Original I/O methods for close */
 };
@@ -6435,7 +6440,7 @@ static int proxyGetLockPath(const char *dbPath, char *lPath, size_t maxLen){
   {
     if( !confstr(_CS_DARWIN_USER_TEMP_DIR, lPath, maxLen) ){
       OSTRACE(("GETLOCKPATH  failed %s errno=%d pid=%d\n",
-               lPath, errno, getpid()));
+               lPath, errno, osGetpid()));
       return SQLITE_IOERR_LOCK;
     }
     len = strlcat(lPath, "sqliteplocks", maxLen);    
@@ -6457,7 +6462,7 @@ static int proxyGetLockPath(const char *dbPath, char *lPath, size_t maxLen){
   }
   lPath[i+len]='\0';
   strlcat(lPath, ":auto:", maxLen);
-  OSTRACE(("GETLOCKPATH  proxy lock path=%s pid=%d\n", lPath, getpid()));
+  OSTRACE(("GETLOCKPATH  proxy lock path=%s pid=%d\n", lPath, osGetpid()));
   return SQLITE_OK;
 }
 
@@ -6484,7 +6489,7 @@ static int proxyCreateLockPath(const char *lockPath){
           if( err!=EEXIST ) {
             OSTRACE(("CREATELOCKPATH  FAILED creating %s, "
                      "'%s' proxy lock path=%s pid=%d\n",
-                     buf, strerror(err), lockPath, getpid()));
+                     buf, strerror(err), lockPath, osGetpid()));
             return err;
           }
         }
@@ -6493,7 +6498,7 @@ static int proxyCreateLockPath(const char *lockPath){
     }
     buf[i] = lockPath[i];
   }
-  OSTRACE(("CREATELOCKPATH  proxy lock path=%s pid=%d\n", lockPath, getpid()));
+  OSTRACE(("CREATELOCKPATH  proxy lock path=%s pid=%d\n", lockPath, osGetpid()));
   return 0;
 }
 
@@ -6602,10 +6607,10 @@ extern int gethostuuid(uuid_t id, const struct timespec *wait);
 static int proxyGetHostID(unsigned char *pHostID, int *pError){
   assert(PROXY_HOSTIDLEN == sizeof(uuid_t));
   memset(pHostID, 0, PROXY_HOSTIDLEN);
-#if defined(__MAX_OS_X_VERSION_MIN_REQUIRED)\
-               && __MAC_OS_X_VERSION_MIN_REQUIRED<1050
+# if defined(__APPLE__) && ((__MAC_OS_X_VERSION_MIN_REQUIRED > 1050) || \
+                            (__IPHONE_OS_VERSION_MIN_REQUIRED > 2000))
   {
-    static const struct timespec timeout = {1, 0}; /* 1 sec timeout */
+    struct timespec timeout = {1, 0}; /* 1 sec timeout */
     if( gethostuuid(pHostID, &timeout) ){
       int err = errno;
       if( pError ){
@@ -6720,7 +6725,7 @@ static int proxyConchLock(unixFile *pFile, uuid_t myHostID, int lockType){
        */
       struct stat buf;
       if( osFstat(conchFile->h, &buf) ){
-        pFile->lastErrno = errno;
+        storeLastErrno(pFile, errno);
         return SQLITE_IOERR_LOCK;
       }
       
@@ -6740,7 +6745,7 @@ static int proxyConchLock(unixFile *pFile, uuid_t myHostID, int lockType){
         char tBuf[PROXY_MAXCONCHLEN];
         int len = osPread(conchFile->h, tBuf, PROXY_MAXCONCHLEN, 0);
         if( len<0 ){
-          pFile->lastErrno = errno;
+          storeLastErrno(pFile, errno);
           return SQLITE_IOERR_LOCK;
         }
         if( len>PROXY_PATHINDEX && tBuf[0]==(char)PROXY_CONCHVERSION){
@@ -6760,7 +6765,7 @@ static int proxyConchLock(unixFile *pFile, uuid_t myHostID, int lockType){
       if( 0==proxyBreakConchLock(pFile, myHostID) ){
         rc = SQLITE_OK;
         if( lockType==EXCLUSIVE_LOCK ){
-          rc = conchFile->pMethod->xLock((sqlite3_file*)conchFile, SHARED_LOCK);          
+          rc = conchFile->pMethod->xLock((sqlite3_file*)conchFile, SHARED_LOCK);
         }
         if( !rc ){
           rc = conchFile->pMethod->xLock((sqlite3_file*)conchFile, lockType);
@@ -6798,11 +6803,12 @@ static int proxyTakeConch(unixFile *pFile){
     int forceNewLockPath = 0;
     
     OSTRACE(("TAKECONCH  %d for %s pid=%d\n", conchFile->h,
-             (pCtx->lockProxyPath ? pCtx->lockProxyPath : ":auto:"), getpid()));
+             (pCtx->lockProxyPath ? pCtx->lockProxyPath : ":auto:"),
+             osGetpid()));
 
     rc = proxyGetHostID(myHostID, &pError);
     if( (rc&0xff)==SQLITE_IOERR ){
-      pFile->lastErrno = pError;
+      storeLastErrno(pFile, pError);
       goto end_takeconch;
     }
     rc = proxyConchLock(pFile, myHostID, SHARED_LOCK);
@@ -6813,7 +6819,7 @@ static int proxyTakeConch(unixFile *pFile){
     readLen = seekAndRead((unixFile*)conchFile, 0, readBuf, PROXY_MAXCONCHLEN);
     if( readLen<0 ){
       /* I/O error: lastErrno set by seekAndRead */
-      pFile->lastErrno = conchFile->lastErrno;
+      storeLastErrno(pFile, conchFile->lastErrno);
       rc = SQLITE_IOERR_READ;
       goto end_takeconch;
     }else if( readLen<=(PROXY_HEADERLEN+PROXY_HOSTIDLEN) || 
@@ -6886,7 +6892,7 @@ static int proxyTakeConch(unixFile *pFile){
           rc = proxyConchLock(pFile, myHostID, EXCLUSIVE_LOCK);
         }
       }else{
-        rc = conchFile->pMethod->xLock((sqlite3_file*)conchFile, EXCLUSIVE_LOCK);
+        rc = proxyConchLock(pFile, myHostID, EXCLUSIVE_LOCK);
       }
       if( rc==SQLITE_OK ){
         char writeBuffer[PROXY_MAXCONCHLEN];
@@ -6895,7 +6901,8 @@ static int proxyTakeConch(unixFile *pFile){
         writeBuffer[0] = (char)PROXY_CONCHVERSION;
         memcpy(&writeBuffer[PROXY_HEADERLEN], myHostID, PROXY_HOSTIDLEN);
         if( pCtx->lockProxyPath!=NULL ){
-          strlcpy(&writeBuffer[PROXY_PATHINDEX], pCtx->lockProxyPath, MAXPATHLEN);
+          strlcpy(&writeBuffer[PROXY_PATHINDEX], pCtx->lockProxyPath,
+                  MAXPATHLEN);
         }else{
           strlcpy(&writeBuffer[PROXY_PATHINDEX], tempLockPath, MAXPATHLEN);
         }
@@ -7007,7 +7014,7 @@ static int proxyReleaseConch(unixFile *pFile){
   conchFile = pCtx->conchFile;
   OSTRACE(("RELEASECONCH  %d for %s pid=%d\n", conchFile->h,
            (pCtx->lockProxyPath ? pCtx->lockProxyPath : ":auto:"), 
-           getpid()));
+           osGetpid()));
   if( pCtx->conchHeld>0 ){
     rc = conchFile->pMethod->xUnlock((sqlite3_file*)conchFile, NO_LOCK);
   }
@@ -7107,7 +7114,8 @@ static int proxyGetDbPathForUnixFile(unixFile *pFile, char *dbPath){
     /* afp style keeps a reference to the db path in the filePath field 
     ** of the struct */
     assert( (int)strlen((char*)pFile->lockingContext)<=MAXPATHLEN );
-    strlcpy(dbPath, ((afpLockingContext *)pFile->lockingContext)->dbPath, MAXPATHLEN);
+    strlcpy(dbPath, ((afpLockingContext *)pFile->lockingContext)->dbPath,
+            MAXPATHLEN);
   } else
 #endif
   if( pFile->pMethod == &dotlockIoMethods ){
@@ -7148,7 +7156,7 @@ static int proxyTransformUnixFile(unixFile *pFile, const char *path) {
   }
   
   OSTRACE(("TRANSPROXY  %d for %s pid=%d\n", pFile->h,
-           (lockPath ? lockPath : ":auto:"), getpid()));
+           (lockPath ? lockPath : ":auto:"), osGetpid()));
 
   pCtx = sqlite3_malloc( sizeof(*pCtx) );
   if( pCtx==0 ){
@@ -7220,7 +7228,11 @@ static int proxyTransformUnixFile(unixFile *pFile, const char *path) {
 */
 static int proxyFileControl(sqlite3_file *id, int op, void *pArg){
   switch( op ){
-    case SQLITE_GET_LOCKPROXYFILE: {
+    case SQLITE_FCNTL_WAL_BLOCK: {
+      id->ctrlFlags |= UNIXFILE_BLOCK;
+      return SQLITE_OK;
+    }
+    case SQLITE_FCNTL_GET_LOCKPROXYFILE: {
       unixFile *pFile = (unixFile*)id;
       if( pFile->pMethod == &proxyIoMethods ){
         proxyLockingContext *pCtx = (proxyLockingContext*)pFile->lockingContext;
@@ -7235,13 +7247,16 @@ static int proxyFileControl(sqlite3_file *id, int op, void *pArg){
       }
       return SQLITE_OK;
     }
-    case SQLITE_SET_LOCKPROXYFILE: {
+    case SQLITE_FCNTL_SET_LOCKPROXYFILE: {
       unixFile *pFile = (unixFile*)id;
       int rc = SQLITE_OK;
       int isProxyStyle = (pFile->pMethod == &proxyIoMethods);
       if( pArg==NULL || (const char *)pArg==0 ){
         if( isProxyStyle ){
-          /* turn off proxy locking - not supported */
+          /* turn off proxy locking - not supported.  If support is added for
+          ** switching proxy locking mode off then it will need to fail if
+          ** the journal mode is WAL mode. 
+          */
           rc = SQLITE_ERROR /*SQLITE_PROTOCOL? SQLITE_MISUSE?*/;
         }else{
           /* turn off proxy locking - already off - NOOP */
@@ -7486,8 +7501,10 @@ int sqlite3_os_init(void){
   ** array cannot be const.
   */
   static sqlite3_vfs aVfs[] = {
-#if SQLITE_ENABLE_LOCKING_STYLE && (OS_VXWORKS || defined(__APPLE__))
+#if SQLITE_ENABLE_LOCKING_STYLE && defined(__APPLE__)
     UNIXVFS("unix",          autolockIoFinder ),
+#elif OS_VXWORKS
+    UNIXVFS("unix",          vxworksIoFinder ),
 #else
     UNIXVFS("unix",          posixIoFinder ),
 #endif
@@ -7497,11 +7514,11 @@ int sqlite3_os_init(void){
 #if OS_VXWORKS
     UNIXVFS("unix-namedsem", semIoFinder ),
 #endif
-#if SQLITE_ENABLE_LOCKING_STYLE
+#if SQLITE_ENABLE_LOCKING_STYLE || OS_VXWORKS
     UNIXVFS("unix-posix",    posixIoFinder ),
-#if !OS_VXWORKS
-    UNIXVFS("unix-flock",    flockIoFinder ),
 #endif
+#if SQLITE_ENABLE_LOCKING_STYLE
+    UNIXVFS("unix-flock",    flockIoFinder ),
 #endif
 #if SQLITE_ENABLE_LOCKING_STYLE && defined(__APPLE__)
     UNIXVFS("unix-afp",      afpIoFinder ),
diff --git a/src/parse.y b/src/parse.y
index 544888a228..b8ef26810c 100644
--- a/src/parse.y
+++ b/src/parse.y
@@ -860,7 +860,7 @@ expr(A) ::= VARIABLE(X).     {
   spanSet(&A, &X, &X);
 }
 expr(A) ::= expr(E) COLLATE ids(C). {
-  A.pExpr = sqlite3ExprAddCollateToken(pParse, E.pExpr, &C);
+  A.pExpr = sqlite3ExprAddCollateToken(pParse, E.pExpr, &C, 1);
   A.zStart = E.zStart;
   A.zEnd = &C.z[C.n];
 }
@@ -1078,7 +1078,7 @@ expr(A) ::= expr(W) between_op(N) expr(X) AND expr(Y). [BETWEEN] {
       A.pExpr = sqlite3PExpr(pParse, TK_IN, X.pExpr, 0, 0);
       if( A.pExpr ){
         A.pExpr->x.pList = Y;
-        sqlite3ExprSetHeight(pParse, A.pExpr);
+        sqlite3ExprSetHeightAndFlags(pParse, A.pExpr);
       }else{
         sqlite3ExprListDelete(pParse->db, Y);
       }
@@ -1091,8 +1091,8 @@ expr(A) ::= expr(W) between_op(N) expr(X) AND expr(Y). [BETWEEN] {
     A.pExpr = sqlite3PExpr(pParse, TK_SELECT, 0, 0, 0);
     if( A.pExpr ){
       A.pExpr->x.pSelect = X;
-      ExprSetProperty(A.pExpr, EP_xIsSelect);
-      sqlite3ExprSetHeight(pParse, A.pExpr);
+      ExprSetProperty(A.pExpr, EP_xIsSelect|EP_Subquery);
+      sqlite3ExprSetHeightAndFlags(pParse, A.pExpr);
     }else{
       sqlite3SelectDelete(pParse->db, X);
     }
@@ -1103,8 +1103,8 @@ expr(A) ::= expr(W) between_op(N) expr(X) AND expr(Y). [BETWEEN] {
     A.pExpr = sqlite3PExpr(pParse, TK_IN, X.pExpr, 0, 0);
     if( A.pExpr ){
       A.pExpr->x.pSelect = Y;
-      ExprSetProperty(A.pExpr, EP_xIsSelect);
-      sqlite3ExprSetHeight(pParse, A.pExpr);
+      ExprSetProperty(A.pExpr, EP_xIsSelect|EP_Subquery);
+      sqlite3ExprSetHeightAndFlags(pParse, A.pExpr);
     }else{
       sqlite3SelectDelete(pParse->db, Y);
     }
@@ -1117,8 +1117,8 @@ expr(A) ::= expr(W) between_op(N) expr(X) AND expr(Y). [BETWEEN] {
     A.pExpr = sqlite3PExpr(pParse, TK_IN, X.pExpr, 0, 0);
     if( A.pExpr ){
       A.pExpr->x.pSelect = sqlite3SelectNew(pParse, 0,pSrc,0,0,0,0,0,0,0);
-      ExprSetProperty(A.pExpr, EP_xIsSelect);
-      sqlite3ExprSetHeight(pParse, A.pExpr);
+      ExprSetProperty(A.pExpr, EP_xIsSelect|EP_Subquery);
+      sqlite3ExprSetHeightAndFlags(pParse, A.pExpr);
     }else{
       sqlite3SrcListDelete(pParse->db, pSrc);
     }
@@ -1130,8 +1130,8 @@ expr(A) ::= expr(W) between_op(N) expr(X) AND expr(Y). [BETWEEN] {
     Expr *p = A.pExpr = sqlite3PExpr(pParse, TK_EXISTS, 0, 0, 0);
     if( p ){
       p->x.pSelect = Y;
-      ExprSetProperty(p, EP_xIsSelect);
-      sqlite3ExprSetHeight(pParse, p);
+      ExprSetProperty(p, EP_xIsSelect|EP_Subquery);
+      sqlite3ExprSetHeightAndFlags(pParse, p);
     }else{
       sqlite3SelectDelete(pParse->db, Y);
     }
@@ -1145,7 +1145,7 @@ expr(A) ::= CASE(C) case_operand(X) case_exprlist(Y) case_else(Z) END(E). {
   A.pExpr = sqlite3PExpr(pParse, TK_CASE, X, 0, 0);
   if( A.pExpr ){
     A.pExpr->x.pList = Z ? sqlite3ExprListAppend(pParse,Y,Z) : Y;
-    sqlite3ExprSetHeight(pParse, A.pExpr);
+    sqlite3ExprSetHeightAndFlags(pParse, A.pExpr);
   }else{
     sqlite3ExprListDelete(pParse->db, Y);
     sqlite3ExprDelete(pParse->db, Z);
@@ -1206,14 +1206,14 @@ uniqueflag(A) ::= .        {A = OE_None;}
 idxlist_opt(A) ::= .                         {A = 0;}
 idxlist_opt(A) ::= LP idxlist(X) RP.         {A = X;}
 idxlist(A) ::= idxlist(X) COMMA nm(Y) collate(C) sortorder(Z).  {
-  Expr *p = sqlite3ExprAddCollateToken(pParse, 0, &C);
+  Expr *p = sqlite3ExprAddCollateToken(pParse, 0, &C, 1);
   A = sqlite3ExprListAppend(pParse,X, p);
   sqlite3ExprListSetName(pParse,A,&Y,1);
   sqlite3ExprListCheckLength(pParse, A, "index");
   if( A ) A->a[A->nExpr-1].sortOrder = (u8)Z;
 }
 idxlist(A) ::= nm(Y) collate(C) sortorder(Z). {
-  Expr *p = sqlite3ExprAddCollateToken(pParse, 0, &C);
+  Expr *p = sqlite3ExprAddCollateToken(pParse, 0, &C, 1);
   A = sqlite3ExprListAppend(pParse,0, p);
   sqlite3ExprListSetName(pParse, A, &Y, 1);
   sqlite3ExprListCheckLength(pParse, A, "index");
diff --git a/src/pcache.c b/src/pcache.c
index 467e2b3dee..d768fe00c8 100644
--- a/src/pcache.c
+++ b/src/pcache.c
@@ -114,12 +114,20 @@ static void pcacheUnpin(PgHdr *p){
 }
 
 /*
-** Compute the number of pages of cache requested.
+** Compute the number of pages of cache requested.  p->szCache is the
+** cache size requested by the "PRAGMA cache_size" statement.
+**
+**
 */
 static int numberOfCachePages(PCache *p){
   if( p->szCache>=0 ){
+    /* IMPLEMENTATION-OF: R-42059-47211 If the argument N is positive then the
+    ** suggested cache size is set to N. */
     return p->szCache;
   }else{
+    /* IMPLEMENTATION-OF: R-61436-13639 If the argument N is negative, then
+    ** the number of cache pages is adjusted to use approximately abs(N*1024)
+    ** bytes of memory. */
     return (int)((-1024*(i64)p->szCache)/(p->szPage+p->szExtra));
   }
 }
diff --git a/src/pragma.c b/src/pragma.c
index 34830e33a6..ef11d5840f 100644
--- a/src/pragma.c
+++ b/src/pragma.c
@@ -22,464 +22,13 @@
 #endif
 
 /***************************************************************************
-** The next block of code, including the PragTyp_XXXX macro definitions and
-** the aPragmaName[] object is composed of generated code. DO NOT EDIT.
-**
-** To add new pragmas, edit the code in ../tool/mkpragmatab.tcl and rerun
-** that script.  Then copy/paste the output in place of the following:
-*/
-#define PragTyp_HEADER_VALUE                   0
-#define PragTyp_AUTO_VACUUM                    1
-#define PragTyp_FLAG                           2
-#define PragTyp_BUSY_TIMEOUT                   3
-#define PragTyp_CACHE_SIZE                     4
-#define PragTyp_CASE_SENSITIVE_LIKE            5
-#define PragTyp_COLLATION_LIST                 6
-#define PragTyp_COMPILE_OPTIONS                7
-#define PragTyp_DATA_STORE_DIRECTORY           8
-#define PragTyp_DATABASE_LIST                  9
-#define PragTyp_DEFAULT_CACHE_SIZE            10
-#define PragTyp_ENCODING                      11
-#define PragTyp_FOREIGN_KEY_CHECK             12
-#define PragTyp_FOREIGN_KEY_LIST              13
-#define PragTyp_INCREMENTAL_VACUUM            14
-#define PragTyp_INDEX_INFO                    15
-#define PragTyp_INDEX_LIST                    16
-#define PragTyp_INTEGRITY_CHECK               17
-#define PragTyp_JOURNAL_MODE                  18
-#define PragTyp_JOURNAL_SIZE_LIMIT            19
-#define PragTyp_LOCK_PROXY_FILE               20
-#define PragTyp_LOCKING_MODE                  21
-#define PragTyp_PAGE_COUNT                    22
-#define PragTyp_MMAP_SIZE                     23
-#define PragTyp_PAGE_SIZE                     24
-#define PragTyp_SECURE_DELETE                 25
-#define PragTyp_SHRINK_MEMORY                 26
-#define PragTyp_SOFT_HEAP_LIMIT               27
-#define PragTyp_STATS                         28
-#define PragTyp_SYNCHRONOUS                   29
-#define PragTyp_TABLE_INFO                    30
-#define PragTyp_TEMP_STORE                    31
-#define PragTyp_TEMP_STORE_DIRECTORY          32
-#define PragTyp_THREADS                       33
-#define PragTyp_WAL_AUTOCHECKPOINT            34
-#define PragTyp_WAL_CHECKPOINT                35
-#define PragTyp_ACTIVATE_EXTENSIONS           36
-#define PragTyp_HEXKEY                        37
-#define PragTyp_KEY                           38
-#define PragTyp_REKEY                         39
-#define PragTyp_LOCK_STATUS                   40
-#define PragTyp_PARSER_TRACE                  41
-#define PragFlag_NeedSchema           0x01
-#define PragFlag_ReadOnly             0x02
-static const struct sPragmaNames {
-  const char *const zName;  /* Name of pragma */
-  u8 ePragTyp;              /* PragTyp_XXX value */
-  u8 mPragFlag;             /* Zero or more PragFlag_XXX values */
-  u32 iArg;                 /* Extra argument */
-} aPragmaNames[] = {
-#if defined(SQLITE_HAS_CODEC) || defined(SQLITE_ENABLE_CEROD)
-  { /* zName:     */ "activate_extensions",
-    /* ePragTyp:  */ PragTyp_ACTIVATE_EXTENSIONS,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
-  { /* zName:     */ "application_id",
-    /* ePragTyp:  */ PragTyp_HEADER_VALUE,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ BTREE_APPLICATION_ID },
-#endif
-#if !defined(SQLITE_OMIT_AUTOVACUUM)
-  { /* zName:     */ "auto_vacuum",
-    /* ePragTyp:  */ PragTyp_AUTO_VACUUM,
-    /* ePragFlag: */ PragFlag_NeedSchema,
-    /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
-#if !defined(SQLITE_OMIT_AUTOMATIC_INDEX)
-  { /* zName:     */ "automatic_index",
-    /* ePragTyp:  */ PragTyp_FLAG,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ SQLITE_AutoIndex },
-#endif
-#endif
-  { /* zName:     */ "busy_timeout",
-    /* ePragTyp:  */ PragTyp_BUSY_TIMEOUT,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ 0 },
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
-  { /* zName:     */ "cache_size",
-    /* ePragTyp:  */ PragTyp_CACHE_SIZE,
-    /* ePragFlag: */ PragFlag_NeedSchema,
-    /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
-  { /* zName:     */ "cache_spill",
-    /* ePragTyp:  */ PragTyp_FLAG,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ SQLITE_CacheSpill },
-#endif
-  { /* zName:     */ "case_sensitive_like",
-    /* ePragTyp:  */ PragTyp_CASE_SENSITIVE_LIKE,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ 0 },
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
-  { /* zName:     */ "checkpoint_fullfsync",
-    /* ePragTyp:  */ PragTyp_FLAG,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ SQLITE_CkptFullFSync },
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
-  { /* zName:     */ "collation_list",
-    /* ePragTyp:  */ PragTyp_COLLATION_LIST,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_COMPILEOPTION_DIAGS)
-  { /* zName:     */ "compile_options",
-    /* ePragTyp:  */ PragTyp_COMPILE_OPTIONS,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
-  { /* zName:     */ "count_changes",
-    /* ePragTyp:  */ PragTyp_FLAG,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ SQLITE_CountRows },
-#endif
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS) && SQLITE_OS_WIN
-  { /* zName:     */ "data_store_directory",
-    /* ePragTyp:  */ PragTyp_DATA_STORE_DIRECTORY,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
-  { /* zName:     */ "data_version",
-    /* ePragTyp:  */ PragTyp_HEADER_VALUE,
-    /* ePragFlag: */ PragFlag_ReadOnly,
-    /* iArg:      */ BTREE_DATA_VERSION },
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
-  { /* zName:     */ "database_list",
-    /* ePragTyp:  */ PragTyp_DATABASE_LIST,
-    /* ePragFlag: */ PragFlag_NeedSchema,
-    /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS) && !defined(SQLITE_OMIT_DEPRECATED)
-  { /* zName:     */ "default_cache_size",
-    /* ePragTyp:  */ PragTyp_DEFAULT_CACHE_SIZE,
-    /* ePragFlag: */ PragFlag_NeedSchema,
-    /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
-#if !defined(SQLITE_OMIT_FOREIGN_KEY) && !defined(SQLITE_OMIT_TRIGGER)
-  { /* zName:     */ "defer_foreign_keys",
-    /* ePragTyp:  */ PragTyp_FLAG,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ SQLITE_DeferFKs },
-#endif
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
-  { /* zName:     */ "empty_result_callbacks",
-    /* ePragTyp:  */ PragTyp_FLAG,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ SQLITE_NullCallback },
-#endif
-#if !defined(SQLITE_OMIT_UTF16)
-  { /* zName:     */ "encoding",
-    /* ePragTyp:  */ PragTyp_ENCODING,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FOREIGN_KEY) && !defined(SQLITE_OMIT_TRIGGER)
-  { /* zName:     */ "foreign_key_check",
-    /* ePragTyp:  */ PragTyp_FOREIGN_KEY_CHECK,
-    /* ePragFlag: */ PragFlag_NeedSchema,
-    /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FOREIGN_KEY)
-  { /* zName:     */ "foreign_key_list",
-    /* ePragTyp:  */ PragTyp_FOREIGN_KEY_LIST,
-    /* ePragFlag: */ PragFlag_NeedSchema,
-    /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
-#if !defined(SQLITE_OMIT_FOREIGN_KEY) && !defined(SQLITE_OMIT_TRIGGER)
-  { /* zName:     */ "foreign_keys",
-    /* ePragTyp:  */ PragTyp_FLAG,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ SQLITE_ForeignKeys },
-#endif
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
-  { /* zName:     */ "freelist_count",
-    /* ePragTyp:  */ PragTyp_HEADER_VALUE,
-    /* ePragFlag: */ PragFlag_ReadOnly,
-    /* iArg:      */ BTREE_FREE_PAGE_COUNT },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
-  { /* zName:     */ "full_column_names",
-    /* ePragTyp:  */ PragTyp_FLAG,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ SQLITE_FullColNames },
-  { /* zName:     */ "fullfsync",
-    /* ePragTyp:  */ PragTyp_FLAG,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ SQLITE_FullFSync },
-#endif
-#if defined(SQLITE_HAS_CODEC)
-  { /* zName:     */ "hexkey",
-    /* ePragTyp:  */ PragTyp_HEXKEY,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ 0 },
-  { /* zName:     */ "hexrekey",
-    /* ePragTyp:  */ PragTyp_HEXKEY,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
-#if !defined(SQLITE_OMIT_CHECK)
-  { /* zName:     */ "ignore_check_constraints",
-    /* ePragTyp:  */ PragTyp_FLAG,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ SQLITE_IgnoreChecks },
-#endif
-#endif
-#if !defined(SQLITE_OMIT_AUTOVACUUM)
-  { /* zName:     */ "incremental_vacuum",
-    /* ePragTyp:  */ PragTyp_INCREMENTAL_VACUUM,
-    /* ePragFlag: */ PragFlag_NeedSchema,
-    /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
-  { /* zName:     */ "index_info",
-    /* ePragTyp:  */ PragTyp_INDEX_INFO,
-    /* ePragFlag: */ PragFlag_NeedSchema,
-    /* iArg:      */ 0 },
-  { /* zName:     */ "index_list",
-    /* ePragTyp:  */ PragTyp_INDEX_LIST,
-    /* ePragFlag: */ PragFlag_NeedSchema,
-    /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_INTEGRITY_CHECK)
-  { /* zName:     */ "integrity_check",
-    /* ePragTyp:  */ PragTyp_INTEGRITY_CHECK,
-    /* ePragFlag: */ PragFlag_NeedSchema,
-    /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
-  { /* zName:     */ "journal_mode",
-    /* ePragTyp:  */ PragTyp_JOURNAL_MODE,
-    /* ePragFlag: */ PragFlag_NeedSchema,
-    /* iArg:      */ 0 },
-  { /* zName:     */ "journal_size_limit",
-    /* ePragTyp:  */ PragTyp_JOURNAL_SIZE_LIMIT,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ 0 },
-#endif
-#if defined(SQLITE_HAS_CODEC)
-  { /* zName:     */ "key",
-    /* ePragTyp:  */ PragTyp_KEY,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
-  { /* zName:     */ "legacy_file_format",
-    /* ePragTyp:  */ PragTyp_FLAG,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ SQLITE_LegacyFileFmt },
-#endif
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS) && SQLITE_ENABLE_LOCKING_STYLE
-  { /* zName:     */ "lock_proxy_file",
-    /* ePragTyp:  */ PragTyp_LOCK_PROXY_FILE,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ 0 },
-#endif
-#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
-  { /* zName:     */ "lock_status",
-    /* ePragTyp:  */ PragTyp_LOCK_STATUS,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
-  { /* zName:     */ "locking_mode",
-    /* ePragTyp:  */ PragTyp_LOCKING_MODE,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ 0 },
-  { /* zName:     */ "max_page_count",
-    /* ePragTyp:  */ PragTyp_PAGE_COUNT,
-    /* ePragFlag: */ PragFlag_NeedSchema,
-    /* iArg:      */ 0 },
-  { /* zName:     */ "mmap_size",
-    /* ePragTyp:  */ PragTyp_MMAP_SIZE,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ 0 },
-  { /* zName:     */ "page_count",
-    /* ePragTyp:  */ PragTyp_PAGE_COUNT,
-    /* ePragFlag: */ PragFlag_NeedSchema,
-    /* iArg:      */ 0 },
-  { /* zName:     */ "page_size",
-    /* ePragTyp:  */ PragTyp_PAGE_SIZE,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ 0 },
-#endif
-#if defined(SQLITE_DEBUG)
-  { /* zName:     */ "parser_trace",
-    /* ePragTyp:  */ PragTyp_PARSER_TRACE,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
-  { /* zName:     */ "query_only",
-    /* ePragTyp:  */ PragTyp_FLAG,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ SQLITE_QueryOnly },
-#endif
-#if !defined(SQLITE_OMIT_INTEGRITY_CHECK)
-  { /* zName:     */ "quick_check",
-    /* ePragTyp:  */ PragTyp_INTEGRITY_CHECK,
-    /* ePragFlag: */ PragFlag_NeedSchema,
-    /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
-  { /* zName:     */ "read_uncommitted",
-    /* ePragTyp:  */ PragTyp_FLAG,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ SQLITE_ReadUncommitted },
-  { /* zName:     */ "recursive_triggers",
-    /* ePragTyp:  */ PragTyp_FLAG,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ SQLITE_RecTriggers },
-#endif
-#if defined(SQLITE_HAS_CODEC)
-  { /* zName:     */ "rekey",
-    /* ePragTyp:  */ PragTyp_REKEY,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
-  { /* zName:     */ "reverse_unordered_selects",
-    /* ePragTyp:  */ PragTyp_FLAG,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ SQLITE_ReverseOrder },
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
-  { /* zName:     */ "schema_version",
-    /* ePragTyp:  */ PragTyp_HEADER_VALUE,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ BTREE_SCHEMA_VERSION },
-#endif
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
-  { /* zName:     */ "secure_delete",
-    /* ePragTyp:  */ PragTyp_SECURE_DELETE,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
-  { /* zName:     */ "short_column_names",
-    /* ePragTyp:  */ PragTyp_FLAG,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ SQLITE_ShortColNames },
-#endif
-  { /* zName:     */ "shrink_memory",
-    /* ePragTyp:  */ PragTyp_SHRINK_MEMORY,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ 0 },
-  { /* zName:     */ "soft_heap_limit",
-    /* ePragTyp:  */ PragTyp_SOFT_HEAP_LIMIT,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ 0 },
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
-#if defined(SQLITE_DEBUG)
-  { /* zName:     */ "sql_trace",
-    /* ePragTyp:  */ PragTyp_FLAG,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ SQLITE_SqlTrace },
-#endif
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
-  { /* zName:     */ "stats",
-    /* ePragTyp:  */ PragTyp_STATS,
-    /* ePragFlag: */ PragFlag_NeedSchema,
-    /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
-  { /* zName:     */ "synchronous",
-    /* ePragTyp:  */ PragTyp_SYNCHRONOUS,
-    /* ePragFlag: */ PragFlag_NeedSchema,
-    /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
-  { /* zName:     */ "table_info",
-    /* ePragTyp:  */ PragTyp_TABLE_INFO,
-    /* ePragFlag: */ PragFlag_NeedSchema,
-    /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
-  { /* zName:     */ "temp_store",
-    /* ePragTyp:  */ PragTyp_TEMP_STORE,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ 0 },
-  { /* zName:     */ "temp_store_directory",
-    /* ePragTyp:  */ PragTyp_TEMP_STORE_DIRECTORY,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ 0 },
-#endif
-  { /* zName:     */ "threads",
-    /* ePragTyp:  */ PragTyp_THREADS,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ 0 },
-#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
-  { /* zName:     */ "user_version",
-    /* ePragTyp:  */ PragTyp_HEADER_VALUE,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ BTREE_USER_VERSION },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
-#if defined(SQLITE_DEBUG)
-  { /* zName:     */ "vdbe_addoptrace",
-    /* ePragTyp:  */ PragTyp_FLAG,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ SQLITE_VdbeAddopTrace },
-  { /* zName:     */ "vdbe_debug",
-    /* ePragTyp:  */ PragTyp_FLAG,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ SQLITE_SqlTrace|SQLITE_VdbeListing|SQLITE_VdbeTrace },
-  { /* zName:     */ "vdbe_eqp",
-    /* ePragTyp:  */ PragTyp_FLAG,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ SQLITE_VdbeEQP },
-  { /* zName:     */ "vdbe_listing",
-    /* ePragTyp:  */ PragTyp_FLAG,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ SQLITE_VdbeListing },
-  { /* zName:     */ "vdbe_trace",
-    /* ePragTyp:  */ PragTyp_FLAG,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ SQLITE_VdbeTrace },
-#endif
-#endif
-#if !defined(SQLITE_OMIT_WAL)
-  { /* zName:     */ "wal_autocheckpoint",
-    /* ePragTyp:  */ PragTyp_WAL_AUTOCHECKPOINT,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ 0 },
-  { /* zName:     */ "wal_checkpoint",
-    /* ePragTyp:  */ PragTyp_WAL_CHECKPOINT,
-    /* ePragFlag: */ PragFlag_NeedSchema,
-    /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
-  { /* zName:     */ "writable_schema",
-    /* ePragTyp:  */ PragTyp_FLAG,
-    /* ePragFlag: */ 0,
-    /* iArg:      */ SQLITE_WriteSchema|SQLITE_RecoveryMode },
-#endif
-};
-/* Number of pragmas: 58 on by default, 71 total. */
-/* End of the automatically generated pragma table.
-***************************************************************************/
+** The "pragma.h" include file is an automatically generated file that
+** that includes the PragType_XXXX macro definitions and the aPragmaName[]
+** object.  This ensures that the aPragmaName[] table is arranged in
+** lexicographical order to facility a binary search of the pragma name.
+** Do not edit pragma.h directly.  Edit and rerun the script in at 
+** ../tool/mkpragmatab.tcl. */
+#include "pragma.h"
 
 /*
 ** Interpret the given string as a safety level.  Return 0 for OFF,
@@ -732,6 +281,7 @@ void sqlite3Pragma(
   sqlite3 *db = pParse->db;    /* The database connection */
   Db *pDb;                     /* The specific database being pragmaed */
   Vdbe *v = sqlite3GetVdbe(pParse);  /* Prepared statement */
+  const struct sPragmaNames *pPragma;
 
   if( v==0 ) return;
   sqlite3VdbeRunOnlyOnce(v);
@@ -767,6 +317,17 @@ void sqlite3Pragma(
   /* Send an SQLITE_FCNTL_PRAGMA file-control to the underlying VFS
   ** connection.  If it returns SQLITE_OK, then assume that the VFS
   ** handled the pragma and generate a no-op prepared statement.
+  **
+  ** IMPLEMENTATION-OF: R-12238-55120 Whenever a PRAGMA statement is parsed,
+  ** an SQLITE_FCNTL_PRAGMA file control is sent to the open sqlite3_file
+  ** object corresponding to the database file to which the pragma
+  ** statement refers.
+  **
+  ** IMPLEMENTATION-OF: R-29875-31678 The argument to the SQLITE_FCNTL_PRAGMA
+  ** file control is an array of pointers to strings (char**) in which the
+  ** second element of the array is the name of the pragma and the third
+  ** element is the argument to the pragma or NULL if the pragma has no
+  ** argument.
   */
   aFcntl[0] = 0;
   aFcntl[1] = zLeft;
@@ -809,14 +370,15 @@ void sqlite3Pragma(
     }
   }
   if( lwr>upr ) goto pragma_out;
+  pPragma = &aPragmaNames[mid];
 
   /* Make sure the database schema is loaded if the pragma requires that */
-  if( (aPragmaNames[mid].mPragFlag & PragFlag_NeedSchema)!=0 ){
+  if( (pPragma->mPragFlag & PragFlag_NeedSchema)!=0 ){
     if( sqlite3ReadSchema(pParse) ) goto pragma_out;
   }
 
   /* Jump to the appropriate pragma handler */
-  switch( aPragmaNames[mid].ePragTyp ){
+  switch( pPragma->ePragTyp ){
   
 #if !defined(SQLITE_OMIT_PAGER_PRAGMAS) && !defined(SQLITE_OMIT_DEPRECATED)
   /*
@@ -1395,10 +957,9 @@ void sqlite3Pragma(
 #ifndef SQLITE_OMIT_FLAG_PRAGMAS
   case PragTyp_FLAG: {
     if( zRight==0 ){
-      returnSingleInt(pParse, aPragmaNames[mid].zName,
-                     (db->flags & aPragmaNames[mid].iArg)!=0 );
+      returnSingleInt(pParse, pPragma->zName, (db->flags & pPragma->iArg)!=0 );
     }else{
-      int mask = aPragmaNames[mid].iArg;    /* Mask of bits to set or clear. */
+      int mask = pPragma->iArg;    /* Mask of bits to set or clear. */
       if( db->autoCommit==0 ){
         /* Foreign key support may not be enabled or disabled while not
         ** in auto-commit mode.  */
@@ -1527,20 +1088,42 @@ void sqlite3Pragma(
     pIdx = sqlite3FindIndex(db, zRight, zDb);
     if( pIdx ){
       int i;
+      int mx;
+      if( pPragma->iArg ){
+        /* PRAGMA index_xinfo (newer version with more rows and columns) */
+        mx = pIdx->nColumn;
+        pParse->nMem = 6;
+      }else{
+        /* PRAGMA index_info (legacy version) */
+        mx = pIdx->nKeyCol;
+        pParse->nMem = 3;
+      }
       pTab = pIdx->pTable;
-      sqlite3VdbeSetNumCols(v, 3);
-      pParse->nMem = 3;
+      sqlite3VdbeSetNumCols(v, pParse->nMem);
       sqlite3CodeVerifySchema(pParse, iDb);
       sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "seqno", SQLITE_STATIC);
       sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "cid", SQLITE_STATIC);
       sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "name", SQLITE_STATIC);
-      for(i=0; i<pIdx->nKeyCol; i++){
+      if( pPragma->iArg ){
+        sqlite3VdbeSetColName(v, 3, COLNAME_NAME, "desc", SQLITE_STATIC);
+        sqlite3VdbeSetColName(v, 4, COLNAME_NAME, "coll", SQLITE_STATIC);
+        sqlite3VdbeSetColName(v, 5, COLNAME_NAME, "key", SQLITE_STATIC);
+      }
+      for(i=0; i<mx; i++){
         i16 cnum = pIdx->aiColumn[i];
         sqlite3VdbeAddOp2(v, OP_Integer, i, 1);
         sqlite3VdbeAddOp2(v, OP_Integer, cnum, 2);
-        assert( pTab->nCol>cnum );
-        sqlite3VdbeAddOp4(v, OP_String8, 0, 3, 0, pTab->aCol[cnum].zName, 0);
-        sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 3);
+        if( cnum<0 ){
+          sqlite3VdbeAddOp2(v, OP_Null, 0, 3);
+        }else{
+          sqlite3VdbeAddOp4(v, OP_String8, 0, 3, 0, pTab->aCol[cnum].zName, 0);
+        }
+        if( pPragma->iArg ){
+          sqlite3VdbeAddOp2(v, OP_Integer, pIdx->aSortOrder[i], 4);
+          sqlite3VdbeAddOp4(v, OP_String8, 0, 5, 0, pIdx->azColl[i], 0);
+          sqlite3VdbeAddOp2(v, OP_Integer, i<pIdx->nKeyCol, 6);
+        }
+        sqlite3VdbeAddOp2(v, OP_ResultRow, 1, pParse->nMem);
       }
     }
   }
@@ -1553,17 +1136,22 @@ void sqlite3Pragma(
     pTab = sqlite3FindTable(db, zRight, zDb);
     if( pTab ){
       v = sqlite3GetVdbe(pParse);
-      sqlite3VdbeSetNumCols(v, 3);
-      pParse->nMem = 3;
+      sqlite3VdbeSetNumCols(v, 5);
+      pParse->nMem = 5;
       sqlite3CodeVerifySchema(pParse, iDb);
       sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "seq", SQLITE_STATIC);
       sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "name", SQLITE_STATIC);
       sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "unique", SQLITE_STATIC);
+      sqlite3VdbeSetColName(v, 3, COLNAME_NAME, "origin", SQLITE_STATIC);
+      sqlite3VdbeSetColName(v, 4, COLNAME_NAME, "partial", SQLITE_STATIC);
       for(pIdx=pTab->pIndex, i=0; pIdx; pIdx=pIdx->pNext, i++){
+        const char *azOrigin[] = { "c", "u", "pk" };
         sqlite3VdbeAddOp2(v, OP_Integer, i, 1);
         sqlite3VdbeAddOp4(v, OP_String8, 0, 2, 0, pIdx->zName, 0);
         sqlite3VdbeAddOp2(v, OP_Integer, IsUniqueIndex(pIdx), 3);
-        sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 3);
+        sqlite3VdbeAddOp4(v, OP_String8, 0, 4, 0, azOrigin[pIdx->idxType], 0);
+        sqlite3VdbeAddOp2(v, OP_Integer, pIdx->pPartIdxWhere!=0, 5);
+        sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 5);
       }
     }
   }
@@ -2133,9 +1721,9 @@ void sqlite3Pragma(
   ** applications for any purpose.
   */
   case PragTyp_HEADER_VALUE: {
-    int iCookie = aPragmaNames[mid].iArg;  /* Which cookie to read or write */
+    int iCookie = pPragma->iArg;  /* Which cookie to read or write */
     sqlite3VdbeUsesBtree(v, iDb);
-    if( zRight && (aPragmaNames[mid].mPragFlag & PragFlag_ReadOnly)==0 ){
+    if( zRight && (pPragma->mPragFlag & PragFlag_ReadOnly)==0 ){
       /* Write the specified cookie value */
       static const VdbeOpList setCookie[] = {
         { OP_Transaction,    0,  1,  0},    /* 0 */
@@ -2237,8 +1825,9 @@ void sqlite3Pragma(
   /*
   **  PRAGMA shrink_memory
   **
-  ** This pragma attempts to free as much memory as possible from the
-  ** current database connection.
+  ** IMPLEMENTATION-OF: R-23445-46109 This pragma causes the database
+  ** connection on which it is invoked to free up as much memory as it
+  ** can, by calling sqlite3_db_release_memory().
   */
   case PragTyp_SHRINK_MEMORY: {
     sqlite3_db_release_memory(db);
@@ -2255,7 +1844,7 @@ void sqlite3Pragma(
   ** disables the timeout.
   */
   /*case PragTyp_BUSY_TIMEOUT*/ default: {
-    assert( aPragmaNames[mid].ePragTyp==PragTyp_BUSY_TIMEOUT );
+    assert( pPragma->ePragTyp==PragTyp_BUSY_TIMEOUT );
     if( zRight ){
       sqlite3_busy_timeout(db, sqlite3Atoi(zRight));
     }
@@ -2267,8 +1856,12 @@ void sqlite3Pragma(
   **   PRAGMA soft_heap_limit
   **   PRAGMA soft_heap_limit = N
   **
-  ** Call sqlite3_soft_heap_limit64(N).  Return the result.  If N is omitted,
-  ** use -1.
+  ** IMPLEMENTATION-OF: R-26343-45930 This pragma invokes the
+  ** sqlite3_soft_heap_limit64() interface with the argument N, if N is
+  ** specified and is a non-negative integer.
+  ** IMPLEMENTATION-OF: R-64451-07163 The soft_heap_limit pragma always
+  ** returns the same integer that would be returned by the
+  ** sqlite3_soft_heap_limit64(-1) C-language function.
   */
   case PragTyp_SOFT_HEAP_LIMIT: {
     sqlite3_int64 N;
diff --git a/src/pragma.h b/src/pragma.h
new file mode 100644
index 0000000000..c9ae8e6eb8
--- /dev/null
+++ b/src/pragma.h
@@ -0,0 +1,459 @@
+/* DO NOT EDIT!
+** This file is automatically generated by the script at
+** ../tool/mkpragmatab.tcl.  To update the set of pragmas, edit
+** that script and rerun it.
+*/
+#define PragTyp_HEADER_VALUE                   0
+#define PragTyp_AUTO_VACUUM                    1
+#define PragTyp_FLAG                           2
+#define PragTyp_BUSY_TIMEOUT                   3
+#define PragTyp_CACHE_SIZE                     4
+#define PragTyp_CASE_SENSITIVE_LIKE            5
+#define PragTyp_COLLATION_LIST                 6
+#define PragTyp_COMPILE_OPTIONS                7
+#define PragTyp_DATA_STORE_DIRECTORY           8
+#define PragTyp_DATABASE_LIST                  9
+#define PragTyp_DEFAULT_CACHE_SIZE            10
+#define PragTyp_ENCODING                      11
+#define PragTyp_FOREIGN_KEY_CHECK             12
+#define PragTyp_FOREIGN_KEY_LIST              13
+#define PragTyp_INCREMENTAL_VACUUM            14
+#define PragTyp_INDEX_INFO                    15
+#define PragTyp_INDEX_LIST                    16
+#define PragTyp_INTEGRITY_CHECK               17
+#define PragTyp_JOURNAL_MODE                  18
+#define PragTyp_JOURNAL_SIZE_LIMIT            19
+#define PragTyp_LOCK_PROXY_FILE               20
+#define PragTyp_LOCKING_MODE                  21
+#define PragTyp_PAGE_COUNT                    22
+#define PragTyp_MMAP_SIZE                     23
+#define PragTyp_PAGE_SIZE                     24
+#define PragTyp_SECURE_DELETE                 25
+#define PragTyp_SHRINK_MEMORY                 26
+#define PragTyp_SOFT_HEAP_LIMIT               27
+#define PragTyp_STATS                         28
+#define PragTyp_SYNCHRONOUS                   29
+#define PragTyp_TABLE_INFO                    30
+#define PragTyp_TEMP_STORE                    31
+#define PragTyp_TEMP_STORE_DIRECTORY          32
+#define PragTyp_THREADS                       33
+#define PragTyp_WAL_AUTOCHECKPOINT            34
+#define PragTyp_WAL_CHECKPOINT                35
+#define PragTyp_ACTIVATE_EXTENSIONS           36
+#define PragTyp_HEXKEY                        37
+#define PragTyp_KEY                           38
+#define PragTyp_REKEY                         39
+#define PragTyp_LOCK_STATUS                   40
+#define PragTyp_PARSER_TRACE                  41
+#define PragFlag_NeedSchema           0x01
+#define PragFlag_ReadOnly             0x02
+static const struct sPragmaNames {
+  const char *const zName;  /* Name of pragma */
+  u8 ePragTyp;              /* PragTyp_XXX value */
+  u8 mPragFlag;             /* Zero or more PragFlag_XXX values */
+  u32 iArg;                 /* Extra argument */
+} aPragmaNames[] = {
+#if defined(SQLITE_HAS_CODEC) || defined(SQLITE_ENABLE_CEROD)
+  { /* zName:     */ "activate_extensions",
+    /* ePragTyp:  */ PragTyp_ACTIVATE_EXTENSIONS,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ 0 },
+#endif
+#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
+  { /* zName:     */ "application_id",
+    /* ePragTyp:  */ PragTyp_HEADER_VALUE,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ BTREE_APPLICATION_ID },
+#endif
+#if !defined(SQLITE_OMIT_AUTOVACUUM)
+  { /* zName:     */ "auto_vacuum",
+    /* ePragTyp:  */ PragTyp_AUTO_VACUUM,
+    /* ePragFlag: */ PragFlag_NeedSchema,
+    /* iArg:      */ 0 },
+#endif
+#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
+#if !defined(SQLITE_OMIT_AUTOMATIC_INDEX)
+  { /* zName:     */ "automatic_index",
+    /* ePragTyp:  */ PragTyp_FLAG,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ SQLITE_AutoIndex },
+#endif
+#endif
+  { /* zName:     */ "busy_timeout",
+    /* ePragTyp:  */ PragTyp_BUSY_TIMEOUT,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ 0 },
+#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
+  { /* zName:     */ "cache_size",
+    /* ePragTyp:  */ PragTyp_CACHE_SIZE,
+    /* ePragFlag: */ PragFlag_NeedSchema,
+    /* iArg:      */ 0 },
+#endif
+#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
+  { /* zName:     */ "cache_spill",
+    /* ePragTyp:  */ PragTyp_FLAG,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ SQLITE_CacheSpill },
+#endif
+  { /* zName:     */ "case_sensitive_like",
+    /* ePragTyp:  */ PragTyp_CASE_SENSITIVE_LIKE,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ 0 },
+#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
+  { /* zName:     */ "checkpoint_fullfsync",
+    /* ePragTyp:  */ PragTyp_FLAG,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ SQLITE_CkptFullFSync },
+#endif
+#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
+  { /* zName:     */ "collation_list",
+    /* ePragTyp:  */ PragTyp_COLLATION_LIST,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ 0 },
+#endif
+#if !defined(SQLITE_OMIT_COMPILEOPTION_DIAGS)
+  { /* zName:     */ "compile_options",
+    /* ePragTyp:  */ PragTyp_COMPILE_OPTIONS,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ 0 },
+#endif
+#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
+  { /* zName:     */ "count_changes",
+    /* ePragTyp:  */ PragTyp_FLAG,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ SQLITE_CountRows },
+#endif
+#if !defined(SQLITE_OMIT_PAGER_PRAGMAS) && SQLITE_OS_WIN
+  { /* zName:     */ "data_store_directory",
+    /* ePragTyp:  */ PragTyp_DATA_STORE_DIRECTORY,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ 0 },
+#endif
+#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
+  { /* zName:     */ "data_version",
+    /* ePragTyp:  */ PragTyp_HEADER_VALUE,
+    /* ePragFlag: */ PragFlag_ReadOnly,
+    /* iArg:      */ BTREE_DATA_VERSION },
+#endif
+#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
+  { /* zName:     */ "database_list",
+    /* ePragTyp:  */ PragTyp_DATABASE_LIST,
+    /* ePragFlag: */ PragFlag_NeedSchema,
+    /* iArg:      */ 0 },
+#endif
+#if !defined(SQLITE_OMIT_PAGER_PRAGMAS) && !defined(SQLITE_OMIT_DEPRECATED)
+  { /* zName:     */ "default_cache_size",
+    /* ePragTyp:  */ PragTyp_DEFAULT_CACHE_SIZE,
+    /* ePragFlag: */ PragFlag_NeedSchema,
+    /* iArg:      */ 0 },
+#endif
+#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
+#if !defined(SQLITE_OMIT_FOREIGN_KEY) && !defined(SQLITE_OMIT_TRIGGER)
+  { /* zName:     */ "defer_foreign_keys",
+    /* ePragTyp:  */ PragTyp_FLAG,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ SQLITE_DeferFKs },
+#endif
+#endif
+#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
+  { /* zName:     */ "empty_result_callbacks",
+    /* ePragTyp:  */ PragTyp_FLAG,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ SQLITE_NullCallback },
+#endif
+#if !defined(SQLITE_OMIT_UTF16)
+  { /* zName:     */ "encoding",
+    /* ePragTyp:  */ PragTyp_ENCODING,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ 0 },
+#endif
+#if !defined(SQLITE_OMIT_FOREIGN_KEY) && !defined(SQLITE_OMIT_TRIGGER)
+  { /* zName:     */ "foreign_key_check",
+    /* ePragTyp:  */ PragTyp_FOREIGN_KEY_CHECK,
+    /* ePragFlag: */ PragFlag_NeedSchema,
+    /* iArg:      */ 0 },
+#endif
+#if !defined(SQLITE_OMIT_FOREIGN_KEY)
+  { /* zName:     */ "foreign_key_list",
+    /* ePragTyp:  */ PragTyp_FOREIGN_KEY_LIST,
+    /* ePragFlag: */ PragFlag_NeedSchema,
+    /* iArg:      */ 0 },
+#endif
+#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
+#if !defined(SQLITE_OMIT_FOREIGN_KEY) && !defined(SQLITE_OMIT_TRIGGER)
+  { /* zName:     */ "foreign_keys",
+    /* ePragTyp:  */ PragTyp_FLAG,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ SQLITE_ForeignKeys },
+#endif
+#endif
+#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
+  { /* zName:     */ "freelist_count",
+    /* ePragTyp:  */ PragTyp_HEADER_VALUE,
+    /* ePragFlag: */ PragFlag_ReadOnly,
+    /* iArg:      */ BTREE_FREE_PAGE_COUNT },
+#endif
+#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
+  { /* zName:     */ "full_column_names",
+    /* ePragTyp:  */ PragTyp_FLAG,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ SQLITE_FullColNames },
+  { /* zName:     */ "fullfsync",
+    /* ePragTyp:  */ PragTyp_FLAG,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ SQLITE_FullFSync },
+#endif
+#if defined(SQLITE_HAS_CODEC)
+  { /* zName:     */ "hexkey",
+    /* ePragTyp:  */ PragTyp_HEXKEY,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ 0 },
+  { /* zName:     */ "hexrekey",
+    /* ePragTyp:  */ PragTyp_HEXKEY,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ 0 },
+#endif
+#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
+#if !defined(SQLITE_OMIT_CHECK)
+  { /* zName:     */ "ignore_check_constraints",
+    /* ePragTyp:  */ PragTyp_FLAG,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ SQLITE_IgnoreChecks },
+#endif
+#endif
+#if !defined(SQLITE_OMIT_AUTOVACUUM)
+  { /* zName:     */ "incremental_vacuum",
+    /* ePragTyp:  */ PragTyp_INCREMENTAL_VACUUM,
+    /* ePragFlag: */ PragFlag_NeedSchema,
+    /* iArg:      */ 0 },
+#endif
+#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
+  { /* zName:     */ "index_info",
+    /* ePragTyp:  */ PragTyp_INDEX_INFO,
+    /* ePragFlag: */ PragFlag_NeedSchema,
+    /* iArg:      */ 0 },
+  { /* zName:     */ "index_list",
+    /* ePragTyp:  */ PragTyp_INDEX_LIST,
+    /* ePragFlag: */ PragFlag_NeedSchema,
+    /* iArg:      */ 0 },
+  { /* zName:     */ "index_xinfo",
+    /* ePragTyp:  */ PragTyp_INDEX_INFO,
+    /* ePragFlag: */ PragFlag_NeedSchema,
+    /* iArg:      */ 1 },
+#endif
+#if !defined(SQLITE_OMIT_INTEGRITY_CHECK)
+  { /* zName:     */ "integrity_check",
+    /* ePragTyp:  */ PragTyp_INTEGRITY_CHECK,
+    /* ePragFlag: */ PragFlag_NeedSchema,
+    /* iArg:      */ 0 },
+#endif
+#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
+  { /* zName:     */ "journal_mode",
+    /* ePragTyp:  */ PragTyp_JOURNAL_MODE,
+    /* ePragFlag: */ PragFlag_NeedSchema,
+    /* iArg:      */ 0 },
+  { /* zName:     */ "journal_size_limit",
+    /* ePragTyp:  */ PragTyp_JOURNAL_SIZE_LIMIT,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ 0 },
+#endif
+#if defined(SQLITE_HAS_CODEC)
+  { /* zName:     */ "key",
+    /* ePragTyp:  */ PragTyp_KEY,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ 0 },
+#endif
+#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
+  { /* zName:     */ "legacy_file_format",
+    /* ePragTyp:  */ PragTyp_FLAG,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ SQLITE_LegacyFileFmt },
+#endif
+#if !defined(SQLITE_OMIT_PAGER_PRAGMAS) && SQLITE_ENABLE_LOCKING_STYLE
+  { /* zName:     */ "lock_proxy_file",
+    /* ePragTyp:  */ PragTyp_LOCK_PROXY_FILE,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ 0 },
+#endif
+#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
+  { /* zName:     */ "lock_status",
+    /* ePragTyp:  */ PragTyp_LOCK_STATUS,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ 0 },
+#endif
+#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
+  { /* zName:     */ "locking_mode",
+    /* ePragTyp:  */ PragTyp_LOCKING_MODE,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ 0 },
+  { /* zName:     */ "max_page_count",
+    /* ePragTyp:  */ PragTyp_PAGE_COUNT,
+    /* ePragFlag: */ PragFlag_NeedSchema,
+    /* iArg:      */ 0 },
+  { /* zName:     */ "mmap_size",
+    /* ePragTyp:  */ PragTyp_MMAP_SIZE,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ 0 },
+  { /* zName:     */ "page_count",
+    /* ePragTyp:  */ PragTyp_PAGE_COUNT,
+    /* ePragFlag: */ PragFlag_NeedSchema,
+    /* iArg:      */ 0 },
+  { /* zName:     */ "page_size",
+    /* ePragTyp:  */ PragTyp_PAGE_SIZE,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ 0 },
+#endif
+#if defined(SQLITE_DEBUG)
+  { /* zName:     */ "parser_trace",
+    /* ePragTyp:  */ PragTyp_PARSER_TRACE,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ 0 },
+#endif
+#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
+  { /* zName:     */ "query_only",
+    /* ePragTyp:  */ PragTyp_FLAG,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ SQLITE_QueryOnly },
+#endif
+#if !defined(SQLITE_OMIT_INTEGRITY_CHECK)
+  { /* zName:     */ "quick_check",
+    /* ePragTyp:  */ PragTyp_INTEGRITY_CHECK,
+    /* ePragFlag: */ PragFlag_NeedSchema,
+    /* iArg:      */ 0 },
+#endif
+#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
+  { /* zName:     */ "read_uncommitted",
+    /* ePragTyp:  */ PragTyp_FLAG,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ SQLITE_ReadUncommitted },
+  { /* zName:     */ "recursive_triggers",
+    /* ePragTyp:  */ PragTyp_FLAG,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ SQLITE_RecTriggers },
+#endif
+#if defined(SQLITE_HAS_CODEC)
+  { /* zName:     */ "rekey",
+    /* ePragTyp:  */ PragTyp_REKEY,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ 0 },
+#endif
+#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
+  { /* zName:     */ "reverse_unordered_selects",
+    /* ePragTyp:  */ PragTyp_FLAG,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ SQLITE_ReverseOrder },
+#endif
+#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
+  { /* zName:     */ "schema_version",
+    /* ePragTyp:  */ PragTyp_HEADER_VALUE,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ BTREE_SCHEMA_VERSION },
+#endif
+#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
+  { /* zName:     */ "secure_delete",
+    /* ePragTyp:  */ PragTyp_SECURE_DELETE,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ 0 },
+#endif
+#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
+  { /* zName:     */ "short_column_names",
+    /* ePragTyp:  */ PragTyp_FLAG,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ SQLITE_ShortColNames },
+#endif
+  { /* zName:     */ "shrink_memory",
+    /* ePragTyp:  */ PragTyp_SHRINK_MEMORY,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ 0 },
+  { /* zName:     */ "soft_heap_limit",
+    /* ePragTyp:  */ PragTyp_SOFT_HEAP_LIMIT,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ 0 },
+#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
+#if defined(SQLITE_DEBUG)
+  { /* zName:     */ "sql_trace",
+    /* ePragTyp:  */ PragTyp_FLAG,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ SQLITE_SqlTrace },
+#endif
+#endif
+#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
+  { /* zName:     */ "stats",
+    /* ePragTyp:  */ PragTyp_STATS,
+    /* ePragFlag: */ PragFlag_NeedSchema,
+    /* iArg:      */ 0 },
+#endif
+#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
+  { /* zName:     */ "synchronous",
+    /* ePragTyp:  */ PragTyp_SYNCHRONOUS,
+    /* ePragFlag: */ PragFlag_NeedSchema,
+    /* iArg:      */ 0 },
+#endif
+#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
+  { /* zName:     */ "table_info",
+    /* ePragTyp:  */ PragTyp_TABLE_INFO,
+    /* ePragFlag: */ PragFlag_NeedSchema,
+    /* iArg:      */ 0 },
+#endif
+#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
+  { /* zName:     */ "temp_store",
+    /* ePragTyp:  */ PragTyp_TEMP_STORE,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ 0 },
+  { /* zName:     */ "temp_store_directory",
+    /* ePragTyp:  */ PragTyp_TEMP_STORE_DIRECTORY,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ 0 },
+#endif
+  { /* zName:     */ "threads",
+    /* ePragTyp:  */ PragTyp_THREADS,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ 0 },
+#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
+  { /* zName:     */ "user_version",
+    /* ePragTyp:  */ PragTyp_HEADER_VALUE,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ BTREE_USER_VERSION },
+#endif
+#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
+#if defined(SQLITE_DEBUG)
+  { /* zName:     */ "vdbe_addoptrace",
+    /* ePragTyp:  */ PragTyp_FLAG,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ SQLITE_VdbeAddopTrace },
+  { /* zName:     */ "vdbe_debug",
+    /* ePragTyp:  */ PragTyp_FLAG,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ SQLITE_SqlTrace|SQLITE_VdbeListing|SQLITE_VdbeTrace },
+  { /* zName:     */ "vdbe_eqp",
+    /* ePragTyp:  */ PragTyp_FLAG,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ SQLITE_VdbeEQP },
+  { /* zName:     */ "vdbe_listing",
+    /* ePragTyp:  */ PragTyp_FLAG,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ SQLITE_VdbeListing },
+  { /* zName:     */ "vdbe_trace",
+    /* ePragTyp:  */ PragTyp_FLAG,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ SQLITE_VdbeTrace },
+#endif
+#endif
+#if !defined(SQLITE_OMIT_WAL)
+  { /* zName:     */ "wal_autocheckpoint",
+    /* ePragTyp:  */ PragTyp_WAL_AUTOCHECKPOINT,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ 0 },
+  { /* zName:     */ "wal_checkpoint",
+    /* ePragTyp:  */ PragTyp_WAL_CHECKPOINT,
+    /* ePragFlag: */ PragFlag_NeedSchema,
+    /* iArg:      */ 0 },
+#endif
+#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
+  { /* zName:     */ "writable_schema",
+    /* ePragTyp:  */ PragTyp_FLAG,
+    /* ePragFlag: */ 0,
+    /* iArg:      */ SQLITE_WriteSchema|SQLITE_RecoveryMode },
+#endif
+};
+/* Number of pragmas: 59 on by default, 72 total. */
diff --git a/src/printf.c b/src/printf.c
index 8291002db8..81efa057fc 100644
--- a/src/printf.c
+++ b/src/printf.c
@@ -995,7 +995,7 @@ char *sqlite3_vsnprintf(int n, char *zBuf, const char *zFormat, va_list ap){
 #ifdef SQLITE_ENABLE_API_ARMOR
   if( zBuf==0 || zFormat==0 ) {
     (void)SQLITE_MISUSE_BKPT;
-    if( zBuf && n>0 ) zBuf[0] = 0;
+    if( zBuf ) zBuf[0] = 0;
     return zBuf;
   }
 #endif
diff --git a/src/resolve.c b/src/resolve.c
index d4bd548c93..47df7243f8 100644
--- a/src/resolve.c
+++ b/src/resolve.c
@@ -247,9 +247,10 @@ static int lookupName(
     testcase( pNC->ncFlags & NC_PartIdx );
     testcase( pNC->ncFlags & NC_IsCheck );
     if( (pNC->ncFlags & (NC_PartIdx|NC_IsCheck))!=0 ){
-      /* Silently ignore database qualifiers inside CHECK constraints and partial
-      ** indices.  Do not raise errors because that might break legacy and
-      ** because it does not hurt anything to just ignore the database name. */
+      /* Silently ignore database qualifiers inside CHECK constraints and
+      ** partial indices.  Do not raise errors because that might break
+      ** legacy and because it does not hurt anything to just ignore the
+      ** database name. */
       zDb = 0;
     }else{
       for(i=0; i<db->nDb; i++){
@@ -320,7 +321,8 @@ static int lookupName(
       if( pMatch ){
         pExpr->iTable = pMatch->iCursor;
         pExpr->pTab = pMatch->pTab;
-        assert( (pMatch->jointype & JT_RIGHT)==0 ); /* RIGHT JOIN not (yet) supported */
+        /* RIGHT JOIN not (yet) supported */
+        assert( (pMatch->jointype & JT_RIGHT)==0 );
         if( (pMatch->jointype & JT_LEFT)!=0 ){
           ExprSetProperty(pExpr, EP_CanBeNull);
         }
@@ -641,7 +643,8 @@ static int resolveExprStep(Walker *pWalker, Expr *pExpr){
       pExpr->affinity = SQLITE_AFF_INTEGER;
       break;
     }
-#endif /* defined(SQLITE_ENABLE_UPDATE_DELETE_LIMIT) && !defined(SQLITE_OMIT_SUBQUERY) */
+#endif /* defined(SQLITE_ENABLE_UPDATE_DELETE_LIMIT)
+          && !defined(SQLITE_OMIT_SUBQUERY) */
 
     /* A lone identifier is the name of a column.
     */
@@ -706,19 +709,20 @@ static int resolveExprStep(Walker *pWalker, Expr *pExpr){
           if( n==2 ){
             pExpr->iTable = exprProbability(pList->a[1].pExpr);
             if( pExpr->iTable<0 ){
-              sqlite3ErrorMsg(pParse, "second argument to likelihood() must be a "
-                                      "constant between 0.0 and 1.0");
+              sqlite3ErrorMsg(pParse,
+                "second argument to likelihood() must be a "
+                "constant between 0.0 and 1.0");
               pNC->nErr++;
             }
           }else{
-            /* EVIDENCE-OF: R-61304-29449 The unlikely(X) function is equivalent to
-            ** likelihood(X, 0.0625).
-            ** EVIDENCE-OF: R-01283-11636 The unlikely(X) function is short-hand for
-            ** likelihood(X,0.0625).
-            ** EVIDENCE-OF: R-36850-34127 The likely(X) function is short-hand for
-            ** likelihood(X,0.9375).
-            ** EVIDENCE-OF: R-53436-40973 The likely(X) function is equivalent to
-            ** likelihood(X,0.9375). */
+            /* EVIDENCE-OF: R-61304-29449 The unlikely(X) function is
+            ** equivalent to likelihood(X, 0.0625).
+            ** EVIDENCE-OF: R-01283-11636 The unlikely(X) function is
+            ** short-hand for likelihood(X,0.0625).
+            ** EVIDENCE-OF: R-36850-34127 The likely(X) function is short-hand
+            ** for likelihood(X,0.9375).
+            ** EVIDENCE-OF: R-53436-40973 The likely(X) function is equivalent
+            ** to likelihood(X,0.9375). */
             /* TUNING: unlikely() probability is 0.0625.  likely() is 0.9375 */
             pExpr->iTable = pDef->zName[0]=='u' ? 8388608 : 125829120;
           }             
@@ -735,7 +739,9 @@ static int resolveExprStep(Walker *pWalker, Expr *pExpr){
           return WRC_Prune;
         }
 #endif
-        if( pDef->funcFlags & SQLITE_FUNC_CONSTANT ) ExprSetProperty(pExpr,EP_Constant);
+        if( pDef->funcFlags & SQLITE_FUNC_CONSTANT ){
+          ExprSetProperty(pExpr,EP_ConstFunc);
+        }
       }
       if( is_agg && (pNC->ncFlags & NC_AllowAgg)==0 ){
         sqlite3ErrorMsg(pParse, "misuse of aggregate function %.*s()", nId,zId);
@@ -1046,7 +1052,8 @@ int sqlite3ResolveOrderGroupBy(
         resolveOutOfRangeError(pParse, zType, i+1, pEList->nExpr);
         return 1;
       }
-      resolveAlias(pParse, pEList, pItem->u.x.iOrderByCol-1, pItem->pExpr, zType,0);
+      resolveAlias(pParse, pEList, pItem->u.x.iOrderByCol-1, pItem->pExpr,
+                   zType,0);
     }
   }
   return 0;
diff --git a/src/select.c b/src/select.c
index 8fbd4bb261..8fd0f15918 100644
--- a/src/select.c
+++ b/src/select.c
@@ -563,20 +563,17 @@ static void pushOntoSorter(
   }
   sqlite3VdbeAddOp2(v, op, pSort->iECursor, regRecord);
   if( pSelect->iLimit ){
-    int addr1, addr2;
+    int addr;
     int iLimit;
     if( pSelect->iOffset ){
       iLimit = pSelect->iOffset+1;
     }else{
       iLimit = pSelect->iLimit;
     }
-    addr1 = sqlite3VdbeAddOp1(v, OP_IfZero, iLimit); VdbeCoverage(v);
-    sqlite3VdbeAddOp2(v, OP_AddImm, iLimit, -1);
-    addr2 = sqlite3VdbeAddOp0(v, OP_Goto);
-    sqlite3VdbeJumpHere(v, addr1);
+    addr = sqlite3VdbeAddOp3(v, OP_IfNotZero, iLimit, 0, -1); VdbeCoverage(v);
     sqlite3VdbeAddOp1(v, OP_Last, pSort->iECursor);
     sqlite3VdbeAddOp1(v, OP_Delete, pSort->iECursor);
-    sqlite3VdbeJumpHere(v, addr2);
+    sqlite3VdbeJumpHere(v, addr);
   }
 }
 
@@ -973,7 +970,7 @@ static void selectInnerLoop(
   ** the output for us.
   */
   if( pSort==0 && p->iLimit ){
-    sqlite3VdbeAddOp3(v, OP_IfZero, p->iLimit, iBreak, -1); VdbeCoverage(v);
+    sqlite3VdbeAddOp2(v, OP_DecrJumpZero, p->iLimit, iBreak); VdbeCoverage(v);
   }
 }
 
@@ -1826,7 +1823,7 @@ static void computeLimitRegisters(Parse *pParse, Select *p, int iBreak){
       sqlite3ExprCode(pParse, p->pLimit, iLimit);
       sqlite3VdbeAddOp1(v, OP_MustBeInt, iLimit); VdbeCoverage(v);
       VdbeComment((v, "LIMIT counter"));
-      sqlite3VdbeAddOp2(v, OP_IfZero, iLimit, iBreak); VdbeCoverage(v);
+      sqlite3VdbeAddOp2(v, OP_IfNot, iLimit, iBreak); VdbeCoverage(v);
     }
     if( p->pOffset ){
       p->iOffset = iOffset = ++pParse->nMem;
@@ -2045,7 +2042,7 @@ static void generateWithRecursiveQuery(
   selectInnerLoop(pParse, p, p->pEList, iCurrent,
       0, 0, pDest, addrCont, addrBreak);
   if( regLimit ){
-    sqlite3VdbeAddOp3(v, OP_IfZero, regLimit, addrBreak, -1);
+    sqlite3VdbeAddOp2(v, OP_DecrJumpZero, regLimit, addrBreak);
     VdbeCoverage(v);
   }
   sqlite3VdbeResolveLabel(v, addrCont);
@@ -2270,7 +2267,7 @@ static int multiSelect(
       p->iLimit = pPrior->iLimit;
       p->iOffset = pPrior->iOffset;
       if( p->iLimit ){
-        addr = sqlite3VdbeAddOp1(v, OP_IfZero, p->iLimit); VdbeCoverage(v);
+        addr = sqlite3VdbeAddOp1(v, OP_IfNot, p->iLimit); VdbeCoverage(v);
         VdbeComment((v, "Jump ahead if LIMIT reached"));
       }
       explainSetInteger(iSub2, pParse->iNextSelectId);
@@ -2671,7 +2668,7 @@ static int generateOutputSubroutine(
   /* Jump to the end of the loop if the LIMIT is reached.
   */
   if( p->iLimit ){
-    sqlite3VdbeAddOp3(v, OP_IfZero, p->iLimit, iBreak, -1); VdbeCoverage(v);
+    sqlite3VdbeAddOp2(v, OP_DecrJumpZero, p->iLimit, iBreak); VdbeCoverage(v);
   }
 
   /* Generate the subroutine return
@@ -3194,7 +3191,10 @@ static void substSelect(
 **
 **   (1)  The subquery and the outer query do not both use aggregates.
 **
-**   (2)  The subquery is not an aggregate or the outer query is not a join.
+**   (2)  The subquery is not an aggregate or (2a) the outer query is not a join
+**        and (2b) the outer query does not use subqueries other than the one
+**        FROM-clause subquery that is a candidate for flattening.  (2b is
+**        due to ticket [2f7170d73bf9abf80] from 2015-02-09.)
 **
 **   (3)  The subquery is not the right operand of a left outer join
 **        (Originally ticket #306.  Strengthened by ticket #3300)
@@ -3331,8 +3331,17 @@ static int flattenSubquery(
   iParent = pSubitem->iCursor;
   pSub = pSubitem->pSelect;
   assert( pSub!=0 );
-  if( isAgg && subqueryIsAgg ) return 0;                 /* Restriction (1)  */
-  if( subqueryIsAgg && pSrc->nSrc>1 ) return 0;          /* Restriction (2)  */
+  if( subqueryIsAgg ){
+    if( isAgg ) return 0;                                /* Restriction (1)   */
+    if( pSrc->nSrc>1 ) return 0;                         /* Restriction (2a)  */
+    if( (p->pWhere && ExprHasProperty(p->pWhere,EP_Subquery))
+     || (sqlite3ExprListFlags(p->pEList) & EP_Subquery)!=0
+     || (sqlite3ExprListFlags(p->pOrderBy) & EP_Subquery)!=0
+    ){
+      return 0;                                          /* Restriction (2b)  */
+    }
+  }
+    
   pSubSrc = pSub->pSrc;
   assert( pSubSrc );
   /* Prior to version 3.1.2, when LIMIT and OFFSET had to be simple constants,
@@ -4026,7 +4035,7 @@ static int withExpand(
     for(pLeft=pSel; pLeft->pPrior; pLeft=pLeft->pPrior);
     pEList = pLeft->pEList;
     if( pCte->pCols ){
-      if( pEList->nExpr!=pCte->pCols->nExpr ){
+      if( pEList && pEList->nExpr!=pCte->pCols->nExpr ){
         sqlite3ErrorMsg(pParse, "table %s has %d values for %d columns",
             pCte->zName, pEList->nExpr, pCte->pCols->nExpr
         );
@@ -4752,6 +4761,13 @@ int sqlite3Select(
   }
   isAgg = (p->selFlags & SF_Aggregate)!=0;
   assert( pEList!=0 );
+#if SELECTTRACE_ENABLED
+  if( sqlite3SelectTrace & 0x100 ){
+    SELECTTRACE(0x100,pParse,p, ("after name resolution:\n"));
+    sqlite3TreeViewSelect(0, p, 0);
+  }
+#endif
+
 
   /* Begin generating code.
   */
@@ -5497,9 +5513,9 @@ select_end:
 void sqlite3TreeViewSelect(TreeView *pView, const Select *p, u8 moreToFollow){
   int n = 0;
   pView = sqlite3TreeViewPush(pView, moreToFollow);
-  sqlite3TreeViewLine(pView, "SELECT%s%s",
+  sqlite3TreeViewLine(pView, "SELECT%s%s (0x%p)",
     ((p->selFlags & SF_Distinct) ? " DISTINCT" : ""),
-    ((p->selFlags & SF_Aggregate) ? " agg_flag" : "")
+    ((p->selFlags & SF_Aggregate) ? " agg_flag" : ""), p
   );
   if( p->pSrc && p->pSrc->nSrc ) n++;
   if( p->pWhere ) n++;
diff --git a/src/shell.c b/src/shell.c
index 3130f4c6de..d5a8a3fe95 100644
--- a/src/shell.c
+++ b/src/shell.c
@@ -24,6 +24,13 @@
 #include "msvc.h"
 #endif
 
+/*
+** No support for loadable extensions in VxWorks.
+*/
+#if defined(_WRS_KERNEL) && !SQLITE_OMIT_LOAD_EXTENSION
+# define SQLITE_OMIT_LOAD_EXTENSION 1
+#endif
+
 /*
 ** Enable large-file support for fopen() and friends on unix.
 */
@@ -59,18 +66,38 @@
 # include <readline/readline.h>
 # include <readline/history.h>
 #endif
+
 #if HAVE_EDITLINE
-# undef HAVE_READLINE
-# define HAVE_READLINE 1
 # include <editline/readline.h>
 #endif
-#if !HAVE_READLINE
-# define add_history(X)
-# define read_history(X)
-# define write_history(X)
-# define stifle_history(X)
+
+#if HAVE_EDITLINE || HAVE_READLINE
+
+# define shell_add_history(X) add_history(X)
+# define shell_read_history(X) read_history(X)
+# define shell_write_history(X) write_history(X)
+# define shell_stifle_history(X) stifle_history(X)
+# define shell_readline(X) readline(X)
+
+#elif HAVE_LINENOISE
+
+# include "linenoise.h"
+# define shell_add_history(X) linenoiseHistoryAdd(X)
+# define shell_read_history(X) linenoiseHistoryLoad(X)
+# define shell_write_history(X) linenoiseHistorySave(X)
+# define shell_stifle_history(X) linenoiseHistorySetMaxLen(X)
+# define shell_readline(X) linenoise(X)
+
+#else
+
+# define shell_read_history(X) 
+# define shell_write_history(X)
+# define shell_stifle_history(X)
+
+# define SHELL_USE_LOCAL_GETLINE 1
 #endif
 
+
 #if defined(_WIN32) || defined(WIN32)
 # include <io.h>
 # include <fcntl.h>
@@ -87,10 +114,15 @@
 */
 extern int isatty(int);
 
-/* popen and pclose are not C89 functions and so are sometimes omitted from
-** the <stdio.h> header */
-extern FILE *popen(const char*,const char*);
-extern int pclose(FILE*);
+#if !defined(__RTP__) && !defined(_WRS_KERNEL)
+  /* popen and pclose are not C89 functions and so are sometimes omitted from
+  ** the <stdio.h> header */
+  extern FILE *popen(const char*,const char*);
+  extern int pclose(FILE*);
+#else
+# define SQLITE_OMIT_POPEN 1
+#endif
+
 #endif
 
 #if defined(_WIN32_WCE)
@@ -145,11 +177,19 @@ static sqlite3_int64 timeOfDay(void){
   return t;
 }
 
-#if !defined(_WIN32) && !defined(WIN32) && !defined(_WRS_KERNEL) \
- && !defined(__minux)
+#if !defined(_WIN32) && !defined(WIN32) && !defined(__minux)
 #include <sys/time.h>
 #include <sys/resource.h>
 
+/* VxWorks does not support getrusage() as far as we can determine */
+#if defined(_WRS_KERNEL) || defined(__RTP__)
+struct rusage {
+  struct timeval ru_utime; /* user CPU time used */
+  struct timeval ru_stime; /* system CPU time used */
+};
+#define getrusage(A,B) memset(B,0,sizeof(*B))
+#endif
+
 /* Saved resource information for the beginning of an operation */
 static struct rusage sBegin;  /* CPU time at start */
 static sqlite3_int64 iBegin;  /* Wall-clock time at start */
@@ -175,8 +215,8 @@ static double timeDiff(struct timeval *pStart, struct timeval *pEnd){
 */
 static void endTimer(void){
   if( enableTimer ){
-    struct rusage sEnd;
     sqlite3_int64 iEnd = timeOfDay();
+    struct rusage sEnd;
     getrusage(RUSAGE_SELF, &sEnd);
     printf("Run Time: real %.3f user %f sys %f\n",
        (iEnd - iBegin)*0.001,
@@ -451,14 +491,14 @@ static char *one_input_line(FILE *in, char *zPrior, int isContinuation){
     zResult = local_getline(zPrior, in);
   }else{
     zPrompt = isContinuation ? continuePrompt : mainPrompt;
-#if HAVE_READLINE
-    free(zPrior);
-    zResult = readline(zPrompt);
-    if( zResult && *zResult ) add_history(zResult);
-#else
+#if SHELL_USE_LOCAL_GETLINE
     printf("%s", zPrompt);
     fflush(stdout);
     zResult = local_getline(zPrior, stdin);
+#else
+    free(zPrior);
+    zResult = shell_readline(zPrompt);
+    if( zResult && *zResult ) shell_add_history(zResult);
 #endif
   }
   return zResult;
@@ -1733,6 +1773,7 @@ static char zHelp[] =
   ".bail on|off           Stop after hitting an error.  Default OFF\n"
   ".clone NEWDB           Clone data into NEWDB from the existing database\n"
   ".databases             List names and files of attached databases\n"
+  ".dbinfo ?DB?           Show status information about the database\n"
   ".dump ?TABLE? ...      Dump the database in an SQL text format\n"
   "                         If TABLE specified, only dump tables matching\n"
   "                         LIKE pattern TABLE.\n"
@@ -1745,8 +1786,8 @@ static char zHelp[] =
   ".headers on|off        Turn display of headers on or off\n"
   ".help                  Show this message\n"
   ".import FILE TABLE     Import data from FILE into TABLE\n"
-  ".indices ?TABLE?       Show names of all indices\n"
-  "                         If TABLE specified, only show indices for tables\n"
+  ".indexes ?TABLE?       Show names of all indexes\n"
+  "                         If TABLE specified, only show indexes for tables\n"
   "                         matching LIKE pattern TABLE.\n"
 #ifdef SQLITE_ENABLE_IOTRACE
   ".iotrace FILE          Enable I/O diagnostic logging to FILE\n"
@@ -2102,7 +2143,7 @@ static void import_append_char(ImportCtx *p, int c){
 **      EOF on end-of-file.
 **   +  Report syntax errors on stderr
 */
-static char *csv_read_one_field(ImportCtx *p){
+static char *SQLITE_CDECL csv_read_one_field(ImportCtx *p){
   int c;
   int cSep = p->cColSep;
   int rSep = p->cRowSep;
@@ -2176,7 +2217,7 @@ static char *csv_read_one_field(ImportCtx *p){
 **      EOF on end-of-file.
 **   +  Report syntax errors on stderr
 */
-static char *ascii_read_one_field(ImportCtx *p){
+static char *SQLITE_CDECL ascii_read_one_field(ImportCtx *p){
   int c;
   int cSep = p->cColSep;
   int rSep = p->cRowSep;
@@ -2418,7 +2459,9 @@ static void tryToClone(ShellState *p, const char *zNewDb){
 */
 static void output_reset(ShellState *p){
   if( p->outfile[0]=='|' ){
+#ifndef SQLITE_OMIT_POPEN
     pclose(p->out);
+#endif
   }else{
     output_file_close(p->out);
   }
@@ -2426,6 +2469,115 @@ static void output_reset(ShellState *p){
   p->out = stdout;
 }
 
+/*
+** Run an SQL command and return the single integer result.
+*/
+static int db_int(ShellState *p, const char *zSql){
+  sqlite3_stmt *pStmt;
+  int res = 0;
+  sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
+  if( pStmt && sqlite3_step(pStmt)==SQLITE_ROW ){
+    res = sqlite3_column_int(pStmt,0);
+  }
+  sqlite3_finalize(pStmt);
+  return res;
+}
+
+/*
+** Convert a 2-byte or 4-byte big-endian integer into a native integer
+*/
+unsigned int get2byteInt(unsigned char *a){
+  return (a[0]<<8) + a[1];
+}
+unsigned int get4byteInt(unsigned char *a){
+  return (a[0]<<24) + (a[1]<<16) + (a[2]<<8) + a[3];
+}
+
+/*
+** Implementation of the ".info" command.
+**
+** Return 1 on error, 2 to exit, and 0 otherwise.
+*/
+static int shell_dbinfo_command(ShellState *p, int nArg, char **azArg){
+  static const struct { const char *zName; int ofst; } aField[] = {
+     { "file change counter:",  24  },
+     { "database page count:",  28  },
+     { "freelist page count:",  36  },
+     { "schema cookie:",        40  },
+     { "schema format:",        44  },
+     { "default cache size:",   48  },
+     { "autovacuum top root:",  52  },
+     { "incremental vacuum:",   64  },
+     { "text encoding:",        56  },
+     { "user version:",         60  },
+     { "application id:",       68  },
+     { "software version:",     96  },
+  };
+  static const struct { const char *zName; const char *zSql; } aQuery[] = {
+     { "number of tables:",
+       "SELECT count(*) FROM %s WHERE type='table'" },
+     { "number of indexes:",
+       "SELECT count(*) FROM %s WHERE type='index'" },
+     { "number of triggers:",
+       "SELECT count(*) FROM %s WHERE type='trigger'" },
+     { "number of views:",
+       "SELECT count(*) FROM %s WHERE type='view'" },
+     { "schema size:",
+       "SELECT total(length(sql)) FROM %s" },
+  };
+  sqlite3_file *pFile;
+  int i;
+  char *zSchemaTab;
+  char *zDb = nArg>=2 ? azArg[1] : "main";
+  unsigned char aHdr[100];
+  open_db(p, 0);
+  if( p->db==0 ) return 1;
+  sqlite3_file_control(p->db, zDb, SQLITE_FCNTL_FILE_POINTER, &pFile);
+  if( pFile==0 || pFile->pMethods==0 || pFile->pMethods->xRead==0 ){
+    return 1;
+  }
+  i = pFile->pMethods->xRead(pFile, aHdr, 100, 0);
+  if( i!=SQLITE_OK ){
+    fprintf(stderr, "unable to read database header\n");
+    return 1;
+  }
+  i = get2byteInt(aHdr+16);
+  if( i==1 ) i = 65536;
+  fprintf(p->out, "%-20s %d\n", "database page size:", i);
+  fprintf(p->out, "%-20s %d\n", "write format:", aHdr[18]);
+  fprintf(p->out, "%-20s %d\n", "read format:", aHdr[19]);
+  fprintf(p->out, "%-20s %d\n", "reserved bytes:", aHdr[20]);
+  for(i=0; i<sizeof(aField)/sizeof(aField[0]); i++){
+    int ofst = aField[i].ofst;
+    unsigned int val = get4byteInt(aHdr + ofst);
+    fprintf(p->out, "%-20s %u", aField[i].zName, val);
+    switch( ofst ){
+      case 56: {
+        if( val==1 ) fprintf(p->out, " (utf8)"); 
+        if( val==2 ) fprintf(p->out, " (utf16le)"); 
+        if( val==3 ) fprintf(p->out, " (utf16be)"); 
+      }
+    }
+    fprintf(p->out, "\n");
+  }
+  if( zDb==0 ){
+    zSchemaTab = sqlite3_mprintf("main.sqlite_master");
+  }else if( strcmp(zDb,"temp")==0 ){
+    zSchemaTab = sqlite3_mprintf("%s", "sqlite_temp_master");
+  }else{
+    zSchemaTab = sqlite3_mprintf("\"%w\".sqlite_master", zDb);
+  }
+  for(i=0; i<sizeof(aQuery)/sizeof(aQuery[0]); i++){
+    char *zSql = sqlite3_mprintf(aQuery[i].zSql, zSchemaTab);
+    int val = db_int(p, zSql);
+    sqlite3_free(zSql);
+    fprintf(p->out, "%-20s %d\n", aQuery[i].zName, val);
+  }
+  sqlite3_free(zSchemaTab);
+  return 0;
+}
+
+
 /*
 ** If an input line begins with "." then invoke this routine to
 ** process that line.
@@ -2568,6 +2720,10 @@ static int do_meta_command(char *zLine, ShellState *p){
     }
   }else
 
+  if( c=='d' && strncmp(azArg[0], "dbinfo", n)==0 ){
+    rc = shell_dbinfo_command(p, nArg, azArg);
+  }else
+
   if( c=='d' && strncmp(azArg[0], "dump", n)==0 ){
     open_db(p, 0);
     /* When playing back a "dump", the content might appear in an order
@@ -2755,8 +2911,8 @@ static int do_meta_command(char *zLine, ShellState *p){
     int nSep;                   /* Number of bytes in p->colSeparator[] */
     char *zSql;                 /* An SQL statement */
     ImportCtx sCtx;             /* Reader context */
-    char *(*xRead)(ImportCtx*); /* Procedure to read one value */
-    int (*xCloser)(FILE*);      /* Procedure to close th3 connection */
+    char *(SQLITE_CDECL *xRead)(ImportCtx*); /* Func to read one value */
+    int (SQLITE_CDECL *xCloser)(FILE*);      /* Func to close file */
 
     if( nArg!=3 ){
       fprintf(stderr, "Usage: .import FILE TABLE\n");
@@ -2798,9 +2954,14 @@ static int do_meta_command(char *zLine, ShellState *p){
     sCtx.zFile = zFile;
     sCtx.nLine = 1;
     if( sCtx.zFile[0]=='|' ){
+#ifdef SQLITE_OMIT_POPEN
+      fprintf(stderr, "Error: pipes are not supported in this OS\n");
+      return 1;
+#else
       sCtx.in = popen(sCtx.zFile+1, "r");
       sCtx.zFile = "<pipe>";
       xCloser = pclose;
+#endif
     }else{
       sCtx.in = fopen(sCtx.zFile, "rb");
       xCloser = fclose;
@@ -2907,7 +3068,7 @@ static int do_meta_command(char *zLine, ShellState *p){
           fprintf(stderr, "%s:%d: expected %d columns but found %d - "
                           "filling the rest with NULL\n",
                           sCtx.zFile, startLine, nCol, i+1);
-          i++;
+          i += 2;
           while( i<=nCol ){ sqlite3_bind_null(pStmt, i); i++; }
         }
       }
@@ -2936,7 +3097,8 @@ static int do_meta_command(char *zLine, ShellState *p){
     if( needCommit ) sqlite3_exec(db, "COMMIT", 0, 0, 0);
   }else
 
-  if( c=='i' && strncmp(azArg[0], "indices", n)==0 ){
+  if( c=='i' && (strncmp(azArg[0], "indices", n)==0
+                 || strncmp(azArg[0], "indexes", n)==0) ){
     ShellState data;
     char *zErrMsg = 0;
     open_db(p, 0);
@@ -2966,7 +3128,7 @@ static int do_meta_command(char *zLine, ShellState *p){
       );
       zShellStatic = 0;
     }else{
-      fprintf(stderr, "Usage: .indices ?LIKE-PATTERN?\n");
+      fprintf(stderr, "Usage: .indexes ?LIKE-PATTERN?\n");
       rc = 1;
       goto meta_command_exit;
     }
@@ -3122,6 +3284,11 @@ static int do_meta_command(char *zLine, ShellState *p){
     }
     output_reset(p);
     if( zFile[0]=='|' ){
+#ifdef SQLITE_OMIT_POPEN
+      fprintf(stderr,"Error: pipes are not supported in this OS\n");
+      rc = 1;
+      p->out = stdout;
+#else
       p->out = popen(zFile + 1, "w");
       if( p->out==0 ){
         fprintf(stderr,"Error: cannot open pipe \"%s\"\n", zFile + 1);
@@ -3130,6 +3297,7 @@ static int do_meta_command(char *zLine, ShellState *p){
       }else{
         sqlite3_snprintf(sizeof(p->outfile), p->outfile, "%s", zFile);
       }
+#endif
     }else{
       p->out = output_file_open(zFile);
       if( p->out==0 ){
@@ -3673,12 +3841,12 @@ static int do_meta_command(char *zLine, ShellState *p){
   
   if( c=='t' && strncmp(azArg[0], "trace", n)==0 ){
     open_db(p, 0);
-    output_file_close(p->traceOut);
     if( nArg!=2 ){
       fprintf(stderr, "Usage: .trace FILE|off\n");
       rc = 1;
       goto meta_command_exit;
     }
+    output_file_close(p->traceOut);
     p->traceOut = output_file_open(azArg[1]);
 #if !defined(SQLITE_OMIT_TRACE) && !defined(SQLITE_OMIT_FLOATING_POINT)
     if( p->traceOut==0 ){
@@ -4054,7 +4222,7 @@ static char *find_home_dir(void){
 **
 ** Returns the number of errors.
 */
-static int process_sqliterc(
+static void process_sqliterc(
   ShellState *p,                  /* Configuration data */
   const char *sqliterc_override   /* Name of config file. NULL to use default */
 ){
@@ -4062,15 +4230,13 @@ static int process_sqliterc(
   const char *sqliterc = sqliterc_override;
   char *zBuf = 0;
   FILE *in = NULL;
-  int rc = 0;
 
   if (sqliterc == NULL) {
     home_dir = find_home_dir();
     if( home_dir==0 ){
-#if !defined(__RTP__) && !defined(_WRS_KERNEL)
-      fprintf(stderr,"%s: Error: cannot locate your home directory\n", Argv0);
-#endif
-      return 1;
+      fprintf(stderr, "-- warning: cannot find home directory;"
+                      " cannot read ~/.sqliterc\n");
+      return;
     }
     sqlite3_initialize();
     zBuf = sqlite3_mprintf("%s/.sqliterc",home_dir);
@@ -4081,11 +4247,10 @@ static int process_sqliterc(
     if( stdin_is_interactive ){
       fprintf(stderr,"-- Loading resources from %s\n",sqliterc);
     }
-    rc = process_input(p,in);
+    process_input(p,in);
     fclose(in);
   }
   sqlite3_free(zBuf);
-  return rc;
 }
 
 /*
@@ -4189,7 +4354,7 @@ static char *cmdline_option_value(int argc, char **argv, int i){
   return argv[i];
 }
 
-int main(int argc, char **argv){
+int SQLITE_CDECL main(int argc, char **argv){
   char *zErrMsg = 0;
   ShellState data;
   const char *zInitFile = 0;
@@ -4361,10 +4526,7 @@ int main(int argc, char **argv){
   ** is given on the command line, look for a file named ~/.sqliterc and
   ** try to process it.
   */
-  rc = process_sqliterc(&data,zInitFile);
-  if( rc>0 ){
-    return rc;
-  }
+  process_sqliterc(&data,zInitFile);
 
   /* Make a second pass through the command-line argument and set
   ** options.  This second pass is delayed until after the initialization
@@ -4521,13 +4683,11 @@ int main(int argc, char **argv){
           sqlite3_snprintf(nHistory, zHistory,"%s/.sqlite_history", zHome);
         }
       }
-#if HAVE_READLINE
-      if( zHistory ) read_history(zHistory);
-#endif
+      if( zHistory ) shell_read_history(zHistory);
       rc = process_input(&data, 0);
       if( zHistory ){
-        stifle_history(100);
-        write_history(zHistory);
+        shell_stifle_history(100);
+        shell_write_history(zHistory);
         free(zHistory);
       }
     }else{
diff --git a/src/sqlite.h.in b/src/sqlite.h.in
index f256cea45d..9e48620c66 100644
--- a/src/sqlite.h.in
+++ b/src/sqlite.h.in
@@ -49,6 +49,13 @@ extern "C" {
 # define SQLITE_EXTERN extern
 #endif
 
+/*
+** Add the ability to override 'cdecl'
+*/
+#ifndef SQLITE_CDECL
+# define SQLITE_CDECL
+#endif
+
 /*
 ** These no-op macros are used in front of interfaces to mark those
 ** interfaces as either deprecated or experimental.  New applications
@@ -751,14 +758,16 @@ struct sqlite3_io_methods {
 ** of the [sqlite3_io_methods] object and for the [sqlite3_file_control()]
 ** interface.
 **
+** <ul>
+** <li>[[SQLITE_FCNTL_LOCKSTATE]]
 ** The [SQLITE_FCNTL_LOCKSTATE] opcode is used for debugging.  This
 ** opcode causes the xFileControl method to write the current state of
 ** the lock (one of [SQLITE_LOCK_NONE], [SQLITE_LOCK_SHARED],
 ** [SQLITE_LOCK_RESERVED], [SQLITE_LOCK_PENDING], or [SQLITE_LOCK_EXCLUSIVE])
 ** into an integer that the pArg argument points to. This capability
-** is used during testing and only needs to be supported when SQLITE_TEST
-** is defined.
-** <ul>
+** is used during testing and is only available when the SQLITE_TEST
+** compile-time option is used.
+**
 ** <li>[[SQLITE_FCNTL_SIZE_HINT]]
 ** The [SQLITE_FCNTL_SIZE_HINT] opcode is used by SQLite to give the VFS
 ** layer a hint of how large the database file will grow to be during the
@@ -883,7 +892,9 @@ struct sqlite3_io_methods {
 ** [PRAGMA] processing continues.  ^If the [SQLITE_FCNTL_PRAGMA]
 ** file control returns [SQLITE_OK], then the parser assumes that the
 ** VFS has handled the PRAGMA itself and the parser generates a no-op
-** prepared statement.  ^If the [SQLITE_FCNTL_PRAGMA] file control returns
+** prepared statement if result string is NULL, or that returns a copy
+** of the result string if the string is non-NULL.
+** ^If the [SQLITE_FCNTL_PRAGMA] file control returns
 ** any result code other than [SQLITE_OK] or [SQLITE_NOTFOUND], that means
 ** that the VFS encountered an error while handling the [PRAGMA] and the
 ** compilation of the PRAGMA fails with an error.  ^The [SQLITE_FCNTL_PRAGMA]
@@ -941,12 +952,19 @@ struct sqlite3_io_methods {
 ** pointed to by the pArg argument.  This capability is used during testing
 ** and only needs to be supported when SQLITE_TEST is defined.
 **
+** <li>[[SQLITE_FCNTL_WAL_BLOCK]]
+** The [SQLITE_FCNTL_WAL_BLOCK] is a signal to the VFS layer that it might
+** be advantageous to block on the next WAL lock if the lock is not immediately
+** available.  The WAL subsystem issues this signal during rare
+** circumstances in order to fix a problem with priority inversion.
+** Applications should <em>not</em> use this file-control.
+**
 ** </ul>
 */
 #define SQLITE_FCNTL_LOCKSTATE               1
-#define SQLITE_GET_LOCKPROXYFILE             2
-#define SQLITE_SET_LOCKPROXYFILE             3
-#define SQLITE_LAST_ERRNO                    4
+#define SQLITE_FCNTL_GET_LOCKPROXYFILE       2
+#define SQLITE_FCNTL_SET_LOCKPROXYFILE       3
+#define SQLITE_FCNTL_LAST_ERRNO              4
 #define SQLITE_FCNTL_SIZE_HINT               5
 #define SQLITE_FCNTL_CHUNK_SIZE              6
 #define SQLITE_FCNTL_FILE_POINTER            7
@@ -965,6 +983,13 @@ struct sqlite3_io_methods {
 #define SQLITE_FCNTL_SYNC                   21
 #define SQLITE_FCNTL_COMMIT_PHASETWO        22
 #define SQLITE_FCNTL_WIN32_SET_HANDLE       23
+#define SQLITE_FCNTL_WAL_BLOCK              24
+
+/* deprecated names */
+#define SQLITE_GET_LOCKPROXYFILE      SQLITE_FCNTL_GET_LOCKPROXYFILE
+#define SQLITE_SET_LOCKPROXYFILE      SQLITE_FCNTL_SET_LOCKPROXYFILE
+#define SQLITE_LAST_ERRNO             SQLITE_FCNTL_LAST_ERRNO
+
 
 /*
 ** CAPI3REF: Mutex Handle
@@ -1736,7 +1761,6 @@ struct sqlite3_mem_methods {
 ** compiled for Windows with the [SQLITE_WIN32_MALLOC] pre-processor macro
 ** defined. ^SQLITE_CONFIG_WIN32_HEAPSIZE takes a 32-bit unsigned integer value
 ** that specifies the maximum size of the created heap.
-** </dl>
 **
 ** [[SQLITE_CONFIG_PCACHE_HDRSZ]]
 ** <dt>SQLITE_CONFIG_PCACHE_HDRSZ
@@ -2226,6 +2250,10 @@ void sqlite3_free_table(char **result);
 **
 ** These routines are work-alikes of the "printf()" family of functions
 ** from the standard C library.
+** These routines understand most of the common K&R formatting options,
+** plus some additional non-standard formats, detailed below.
+** Note that some of the more obscure formatting options from recent
+** C-library standards are omitted from this implementation.
 **
 ** ^The sqlite3_mprintf() and sqlite3_vmprintf() routines write their
 ** results into memory obtained from [sqlite3_malloc()].
@@ -2258,7 +2286,7 @@ void sqlite3_free_table(char **result);
 ** These routines all implement some additional formatting
 ** options that are useful for constructing SQL statements.
 ** All of the usual printf() formatting options apply.  In addition, there
-** is are "%q", "%Q", and "%z" options.
+** is are "%q", "%Q", "%w" and "%z" options.
 **
 ** ^(The %q option works like %s in that it substitutes a nul-terminated
 ** string from the argument list.  But %q also doubles every '\'' character.
@@ -2311,6 +2339,12 @@ void sqlite3_free_table(char **result);
 ** The code above will render a correct SQL statement in the zSQL
 ** variable even if the zText variable is a NULL pointer.
 **
+** ^(The "%w" formatting option is like "%q" except that it expects to
+** be contained within double-quotes instead of single quotes, and it
+** escapes the double-quote character instead of the single-quote
+** character.)^  The "%w" formatting option is intended for safely inserting
+** table and column names into a constructed SQL statement.
+**
 ** ^(The "%z" formatting option works like "%s" but with the
 ** addition that after the string has been read and copied into
 ** the result, [sqlite3_free()] is called on the input string.)^
@@ -2973,11 +3007,13 @@ sqlite3_int64 sqlite3_uri_int64(const char*, const char*, sqlite3_int64);
 /*
 ** CAPI3REF: Error Codes And Messages
 **
-** ^The sqlite3_errcode() interface returns the numeric [result code] or
-** [extended result code] for the most recent failed sqlite3_* API call
-** associated with a [database connection]. If a prior API call failed
-** but the most recent API call succeeded, the return value from
-** sqlite3_errcode() is undefined.  ^The sqlite3_extended_errcode()
+** ^If the most recent sqlite3_* API call associated with 
+** [database connection] D failed, then the sqlite3_errcode(D) interface
+** returns the numeric [result code] or [extended result code] for that
+** API call.
+** If the most recent API call was successful,
+** then the return value from sqlite3_errcode() is undefined.
+** ^The sqlite3_extended_errcode()
 ** interface is the same except that it always returns the 
 ** [extended result code] even when extended result codes are
 ** disabled.
@@ -3166,16 +3202,14 @@ int sqlite3_limit(sqlite3*, int id, int newVal);
 ** interfaces use UTF-8, and sqlite3_prepare16() and sqlite3_prepare16_v2()
 ** use UTF-16.
 **
-** ^If the nByte argument is less than zero, then zSql is read up to the
-** first zero terminator. ^If nByte is non-negative, then it is the maximum
-** number of  bytes read from zSql.  ^When nByte is non-negative, the
-** zSql string ends at either the first '\000' or '\u0000' character or
-** the nByte-th byte, whichever comes first. If the caller knows
-** that the supplied string is nul-terminated, then there is a small
-** performance advantage to be gained by passing an nByte parameter that
-** is equal to the number of bytes in the input string <i>including</i>
-** the nul-terminator bytes as this saves SQLite from having to
-** make a copy of the input string.
+** ^If the nByte argument is negative, then zSql is read up to the
+** first zero terminator. ^If nByte is positive, then it is the
+** number of bytes read from zSql.  ^If nByte is zero, then no prepared
+** statement is generated.
+** If the caller knows that the supplied string is nul-terminated, then
+** there is a small performance advantage to passing an nByte parameter that
+** is the number of bytes in the input string <i>including</i>
+** the nul-terminator.
 **
 ** ^If pzTail is not NULL then *pzTail is made to point to the first byte
 ** past the end of the first SQL statement in zSql.  These routines only
@@ -4204,8 +4238,8 @@ int sqlite3_create_function_v2(
 ** These functions are [deprecated].  In order to maintain
 ** backwards compatibility with older code, these functions continue 
 ** to be supported.  However, new applications should avoid
-** the use of these functions.  To help encourage people to avoid
-** using these functions, we are not going to tell you what they do.
+** the use of these functions.  To encourage programmers to avoid
+** these functions, we will not explain what they do.
 */
 #ifndef SQLITE_OMIT_DEPRECATED
 SQLITE_DEPRECATED int sqlite3_aggregate_count(sqlite3_context*);
@@ -5061,6 +5095,11 @@ void *sqlite3_update_hook(
 ** future releases of SQLite.  Applications that care about shared
 ** cache setting should set it explicitly.
 **
+** Note: This method is disabled on MacOS X 10.7 and iOS version 5.0
+** and will always return SQLITE_MISUSE. On those systems, 
+** shared cache mode should be enabled per-database connection via 
+** [sqlite3_open_v2()] with [SQLITE_OPEN_SHAREDCACHE].
+**
 ** This interface is threadsafe on processors where writing a
 ** 32-bit integer is atomic.
 **
@@ -6962,20 +7001,20 @@ typedef struct sqlite3_backup sqlite3_backup;
 ** is not a permanent error and does not affect the return value of
 ** sqlite3_backup_finish().
 **
-** [[sqlite3_backup__remaining()]] [[sqlite3_backup_pagecount()]]
+** [[sqlite3_backup_remaining()]] [[sqlite3_backup_pagecount()]]
 ** <b>sqlite3_backup_remaining() and sqlite3_backup_pagecount()</b>
 **
-** ^Each call to sqlite3_backup_step() sets two values inside
-** the [sqlite3_backup] object: the number of pages still to be backed
-** up and the total number of pages in the source database file.
-** The sqlite3_backup_remaining() and sqlite3_backup_pagecount() interfaces
-** retrieve these two values, respectively.
-**
-** ^The values returned by these functions are only updated by
-** sqlite3_backup_step(). ^If the source database is modified during a backup
-** operation, then the values are not updated to account for any extra
-** pages that need to be updated or the size of the source database file
-** changing.
+** ^The sqlite3_backup_remaining() routine returns the number of pages still
+** to be backed up at the conclusion of the most recent sqlite3_backup_step().
+** ^The sqlite3_backup_pagecount() routine returns the total number of pages
+** in the source database at the conclusion of the most recent
+** sqlite3_backup_step().
+** ^(The values returned by these functions are only updated by
+** sqlite3_backup_step(). If the source database is modified in a way that
+** changes the size of the source database or the number of pages remaining,
+** those changes are not reflected in the output of sqlite3_backup_pagecount()
+** and sqlite3_backup_remaining() until after the next
+** sqlite3_backup_step().)^
 **
 ** <b>Concurrent Usage of Database Handles</b>
 **
diff --git a/src/sqliteInt.h b/src/sqliteInt.h
index 0bc6f679dd..9e174d6f4c 100644
--- a/src/sqliteInt.h
+++ b/src/sqliteInt.h
@@ -23,6 +23,11 @@
 */
 #include "msvc.h"
 
+/*
+** Special setup for VxWorks
+*/
+#include "vxworks.h"
+
 /*
 ** These #defines should enable >2GB file support on POSIX if the
 ** underlying operating system supports it.  If the OS lacks
@@ -2044,8 +2049,14 @@ struct Expr {
 #define EP_MemToken  0x010000 /* Need to sqlite3DbFree() Expr.zToken */
 #define EP_NoReduce  0x020000 /* Cannot EXPRDUP_REDUCE this Expr */
 #define EP_Unlikely  0x040000 /* unlikely() or likelihood() function */
-#define EP_Constant  0x080000 /* Node is a constant */
+#define EP_ConstFunc 0x080000 /* Node is a SQLITE_FUNC_CONSTANT function */
 #define EP_CanBeNull 0x100000 /* Can be null despite NOT NULL constraint */
+#define EP_Subquery  0x200000 /* Tree contains a TK_SELECT operator */
+
+/*
+** Combinations of two or more EP_* flags
+*/
+#define EP_Propagate (EP_Collate|EP_Subquery) /* Propagate these bits up tree */
 
 /*
 ** These macros can be used to test, set, or clear bits in the 
@@ -2244,7 +2255,7 @@ struct SrcList {
 #define WHERE_OMIT_OPEN_CLOSE  0x0010 /* Table cursors are already open */
 #define WHERE_FORCE_TABLE      0x0020 /* Do not use an index-only search */
 #define WHERE_ONETABLE_ONLY    0x0040 /* Only code the 1st table in pTabList */
-                          /*   0x0080 // not currently used */
+#define WHERE_NO_AUTOINDEX     0x0080 /* Disallow automatic indexes */
 #define WHERE_GROUPBY          0x0100 /* pOrderBy is really a GROUP BY */
 #define WHERE_DISTINCTBY       0x0200 /* pOrderby is really a DISTINCT clause */
 #define WHERE_WANT_DISTINCT    0x0400 /* All output needs to be distinct */
@@ -2681,7 +2692,8 @@ struct AuthContext {
 #define OPFLAG_LENGTHARG     0x40    /* OP_Column only used for length() */
 #define OPFLAG_TYPEOFARG     0x80    /* OP_Column only used for typeof() */
 #define OPFLAG_BULKCSR       0x01    /* OP_Open** used to open bulk cursor */
-#define OPFLAG_P2ISREG       0x02    /* P2 to OP_Open** is a register number */
+#define OPFLAG_SEEKEQ        0x02    /* OP_Open** cursor uses EQ seek only */
+#define OPFLAG_P2ISREG       0x04    /* P2 to OP_Open** is a register number */
 #define OPFLAG_PERMUTE       0x01    /* OP_Compare: use the permutation */
 
 /*
@@ -3153,6 +3165,7 @@ ExprList *sqlite3ExprListAppend(Parse*,ExprList*,Expr*);
 void sqlite3ExprListSetName(Parse*,ExprList*,Token*,int);
 void sqlite3ExprListSetSpan(Parse*,ExprList*,ExprSpan*);
 void sqlite3ExprListDelete(sqlite3*, ExprList*);
+u32 sqlite3ExprListFlags(const ExprList*);
 int sqlite3Init(sqlite3*, char**);
 int sqlite3InitCallback(void*, int, char**, char**);
 void sqlite3Pragma(Parse*,Token*,Token*,Token*,int);
@@ -3467,7 +3480,7 @@ int sqlite3ReadSchema(Parse *pParse);
 CollSeq *sqlite3FindCollSeq(sqlite3*,u8 enc, const char*,int);
 CollSeq *sqlite3LocateCollSeq(Parse *pParse, const char*zName);
 CollSeq *sqlite3ExprCollSeq(Parse *pParse, Expr *pExpr);
-Expr *sqlite3ExprAddCollateToken(Parse *pParse, Expr*, const Token*);
+Expr *sqlite3ExprAddCollateToken(Parse *pParse, Expr*, const Token*, int);
 Expr *sqlite3ExprAddCollateString(Parse*,Expr*,const char*);
 Expr *sqlite3ExprSkipCollate(Expr*);
 int sqlite3CheckCollSeq(Parse *, CollSeq *);
@@ -3736,12 +3749,11 @@ void sqlite3MemJournalOpen(sqlite3_file *);
 int sqlite3MemJournalSize(void);
 int sqlite3IsMemJournal(sqlite3_file *);
 
+void sqlite3ExprSetHeightAndFlags(Parse *pParse, Expr *p);
 #if SQLITE_MAX_EXPR_DEPTH>0
-  void sqlite3ExprSetHeight(Parse *pParse, Expr *p);
   int sqlite3SelectExprHeight(Select *);
   int sqlite3ExprCheckHeight(Parse*, int);
 #else
-  #define sqlite3ExprSetHeight(x,y)
   #define sqlite3SelectExprHeight(x) 0
   #define sqlite3ExprCheckHeight(x,y)
 #endif
diff --git a/src/sqliteLimit.h b/src/sqliteLimit.h
index c7aee53ceb..75cad1274b 100644
--- a/src/sqliteLimit.h
+++ b/src/sqliteLimit.h
@@ -98,15 +98,17 @@
 #endif
 
 /*
-** The maximum number of in-memory pages to use for the main database
-** table and for temporary tables.  The SQLITE_DEFAULT_CACHE_SIZE
+** The suggested maximum number of in-memory pages to use for
+** the main database table and for temporary tables.
+**
+** IMPLEMENTATION-OF: R-31093-59126 The default suggested cache size
+** is 2000 pages.
+** IMPLEMENTATION-OF: R-48205-43578 The default suggested cache size can be
+** altered using the SQLITE_DEFAULT_CACHE_SIZE compile-time options.
 */
 #ifndef SQLITE_DEFAULT_CACHE_SIZE
 # define SQLITE_DEFAULT_CACHE_SIZE  2000
 #endif
-#ifndef SQLITE_DEFAULT_TEMP_CACHE_SIZE
-# define SQLITE_DEFAULT_TEMP_CACHE_SIZE  500
-#endif
 
 /*
 ** The default number of frames to accumulate in the log file before
diff --git a/src/tclsqlite.c b/src/tclsqlite.c
index 517046b508..545997bdf5 100644
--- a/src/tclsqlite.c
+++ b/src/tclsqlite.c
@@ -2320,34 +2320,49 @@ static int DbObjCmd(void *cd, Tcl_Interp *interp, int objc,Tcl_Obj *const*objv){
   }
 
   /*
-  **     $db function NAME [-argcount N] SCRIPT
+  **     $db function NAME [-argcount N] [-deterministic] SCRIPT
   **
   ** Create a new SQL function called NAME.  Whenever that function is
   ** called, invoke SCRIPT to evaluate the function.
   */
   case DB_FUNCTION: {
+    int flags = SQLITE_UTF8;
     SqlFunc *pFunc;
     Tcl_Obj *pScript;
     char *zName;
     int nArg = -1;
-    if( objc==6 ){
-      const char *z = Tcl_GetString(objv[3]);
+    int i;
+    if( objc<4 ){
+      Tcl_WrongNumArgs(interp, 2, objv, "NAME ?SWITCHES? SCRIPT");
+      return TCL_ERROR;
+    }
+    for(i=3; i<(objc-1); i++){
+      const char *z = Tcl_GetString(objv[i]);
       int n = strlen30(z);
       if( n>2 && strncmp(z, "-argcount",n)==0 ){
-        if( Tcl_GetIntFromObj(interp, objv[4], &nArg) ) return TCL_ERROR;
+        if( i==(objc-2) ){
+          Tcl_AppendResult(interp, "option requires an argument: ", z, 0);
+          return TCL_ERROR;
+        }
+        if( Tcl_GetIntFromObj(interp, objv[i+1], &nArg) ) return TCL_ERROR;
         if( nArg<0 ){
           Tcl_AppendResult(interp, "number of arguments must be non-negative",
                            (char*)0);
           return TCL_ERROR;
         }
+        i++;
+      }else
+      if( n>2 && strncmp(z, "-deterministic",n)==0 ){
+        flags |= SQLITE_DETERMINISTIC;
+      }else{
+        Tcl_AppendResult(interp, "bad option \"", z, 
+            "\": must be -argcount or -deterministic", 0
+        );
+        return TCL_ERROR;
       }
-      pScript = objv[5];
-    }else if( objc!=4 ){
-      Tcl_WrongNumArgs(interp, 2, objv, "NAME [-argcount N] SCRIPT");
-      return TCL_ERROR;
-    }else{
-      pScript = objv[3];
     }
+
+    pScript = objv[objc-1];
     zName = Tcl_GetStringFromObj(objv[2], 0);
     pFunc = findSqlFunc(pDb, zName);
     if( pFunc==0 ) return TCL_ERROR;
@@ -2357,7 +2372,7 @@ static int DbObjCmd(void *cd, Tcl_Interp *interp, int objc,Tcl_Obj *const*objv){
     pFunc->pScript = pScript;
     Tcl_IncrRefCount(pScript);
     pFunc->useEvalObjv = safeToUseEvalObjv(interp, pScript);
-    rc = sqlite3_create_function(pDb->db, zName, nArg, SQLITE_UTF8,
+    rc = sqlite3_create_function(pDb->db, zName, nArg, flags,
         pFunc, tclSqlFunc, 0, 0);
     if( rc!=SQLITE_OK ){
       rc = TCL_ERROR;
@@ -3429,7 +3444,7 @@ static void MD5DigestToBase10x8(unsigned char digest[16], char zDigest[50]){
   for(i=j=0; i<16; i+=2){
     x = digest[i]*256 + digest[i+1];
     if( i>0 ) zDigest[j++] = '-';
-    sqlite3_snprintf(16-j, &zDigest[j], "%05u", x);
+    sqlite3_snprintf(50-j, &zDigest[j], "%05u", x);
     j += 5;
   }
   zDigest[j] = 0;
diff --git a/src/test_backup.c b/src/test_backup.c
index e967424a29..6b4d6b9b1c 100644
--- a/src/test_backup.c
+++ b/src/test_backup.c
@@ -14,7 +14,7 @@
 */
 
 #include "tcl.h"
-#include <sqlite3.h>
+#include "sqlite3.h"
 #include <assert.h>
 
 /* These functions are implemented in main.c. */
diff --git a/src/test_config.c b/src/test_config.c
index 17515f30ef..ad2f9d810e 100644
--- a/src/test_config.c
+++ b/src/test_config.c
@@ -656,7 +656,6 @@ Tcl_SetVar2(interp, "sqlite_options", "mergesort", "1", TCL_GLOBAL_ONLY);
   LINKVAR( MAX_PAGE_COUNT );
   LINKVAR( MAX_LIKE_PATTERN_LENGTH );
   LINKVAR( MAX_TRIGGER_DEPTH );
-  LINKVAR( DEFAULT_TEMP_CACHE_SIZE );
   LINKVAR( DEFAULT_CACHE_SIZE );
   LINKVAR( DEFAULT_PAGE_SIZE );
   LINKVAR( DEFAULT_FILE_FORMAT );
diff --git a/src/test_demovfs.c b/src/test_demovfs.c
index c63b0a8b7a..9410a309a6 100644
--- a/src/test_demovfs.c
+++ b/src/test_demovfs.c
@@ -115,7 +115,7 @@
 
 #if !defined(SQLITE_TEST) || SQLITE_OS_UNIX
 
-#include <sqlite3.h>
+#include "sqlite3.h"
 
 #include <assert.h>
 #include <string.h>
diff --git a/src/test_func.c b/src/test_func.c
index c7850631d7..2e34fa074e 100644
--- a/src/test_func.c
+++ b/src/test_func.c
@@ -600,12 +600,26 @@ static void test_decode(
   Tcl_DecrRefCount(pRet);
 }
 
+/*
+** The implementation of scalar SQL function "test_zeroblob()". This is
+** similar to the built-in zeroblob() function, except that it does not
+** check that the integer parameter is within range before passing it
+** to sqlite3_result_zeroblob().
+*/
+static void test_zeroblob(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  int nZero = sqlite3_value_int(argv[0]);
+  sqlite3_result_zeroblob(context, nZero);
+}
 
 static int registerTestFunctions(sqlite3 *db){
   static const struct {
      char *zName;
      signed char nArg;
-     unsigned char eTextRep; /* 1: UTF-16.  0: UTF-8 */
+     unsigned int eTextRep; /* 1: UTF-16.  0: UTF-8 */
      void (*xFunc)(sqlite3_context*,int,sqlite3_value **);
   } aFuncs[] = {
     { "randstr",               2, SQLITE_UTF8, randStr    },
@@ -626,6 +640,7 @@ static int registerTestFunctions(sqlite3 *db){
     { "real2hex",              1, SQLITE_UTF8, real2hex},
     { "test_decode",           1, SQLITE_UTF8, test_decode},
     { "test_extract",          2, SQLITE_UTF8, test_extract},
+    { "test_zeroblob",  1, SQLITE_UTF8|SQLITE_DETERMINISTIC, test_zeroblob},
   };
   int i;
 
diff --git a/src/test_multiplex.c b/src/test_multiplex.c
index 8f204c6694..cd379f18f6 100644
--- a/src/test_multiplex.c
+++ b/src/test_multiplex.c
@@ -573,6 +573,9 @@ static int multiplexOpen(
       rc = pSubOpen->pMethods->xFileSize(pSubOpen, &sz);
       if( rc==SQLITE_OK && zName ){
         int bExists;
+        if( flags & SQLITE_OPEN_MASTER_JOURNAL ){
+          pGroup->bEnabled = 0;
+        }else
         if( sz==0 ){
           if( flags & SQLITE_OPEN_MAIN_JOURNAL ){
             /* If opening a main journal file and the first chunk is zero
@@ -1004,6 +1007,13 @@ static int multiplexFileControl(sqlite3_file *pConn, int op, void *pArg){
       break;
     case SQLITE_FCNTL_PRAGMA: {
       char **aFcntl = (char**)pArg;
+      /*
+      ** EVIDENCE-OF: R-29875-31678 The argument to the SQLITE_FCNTL_PRAGMA
+      ** file control is an array of pointers to strings (char**) in which the
+      ** second element of the array is the name of the pragma and the third
+      ** element is the argument to the pragma or NULL if the pragma has no
+      ** argument.
+      */
       if( aFcntl[1] && sqlite3_stricmp(aFcntl[1],"multiplex_truncate")==0 ){
         if( aFcntl[2] && aFcntl[2][0] ){
           if( sqlite3_stricmp(aFcntl[2], "on")==0
@@ -1015,6 +1025,12 @@ static int multiplexFileControl(sqlite3_file *pConn, int op, void *pArg){
             pGroup->bTruncate = 0;
           }
         }
+        /* EVIDENCE-OF: R-27806-26076 The handler for an SQLITE_FCNTL_PRAGMA
+        ** file control can optionally make the first element of the char**
+        ** argument point to a string obtained from sqlite3_mprintf() or the
+        ** equivalent and that string will become the result of the pragma
+        ** or the error message if the pragma fails.
+        */
         aFcntl[0] = sqlite3_mprintf(pGroup->bTruncate ? "on" : "off");
         rc = SQLITE_OK;
         break;
diff --git a/src/test_rtree.c b/src/test_rtree.c
index 9d19fa0e2c..7beec66455 100644
--- a/src/test_rtree.c
+++ b/src/test_rtree.c
@@ -13,7 +13,7 @@
 ** is not included in the SQLite library. 
 */
 
-#include <sqlite3.h>
+#include "sqlite3.h"
 #include <tcl.h>
 
 /* Solely for the UNUSED_PARAMETER() macro. */
diff --git a/src/test_stat.c b/src/test_stat.c
index 615df3d80f..daa84de2c0 100644
--- a/src/test_stat.c
+++ b/src/test_stat.c
@@ -301,8 +301,11 @@ static int statDecodePage(Btree *pBt, StatPage *p){
 
   if( p->nCell ){
     int i;                        /* Used to iterate through cells */
-    int nUsable = szPage - sqlite3BtreeGetReserve(pBt);
+    int nUsable;                  /* Usable bytes per page */
 
+    sqlite3BtreeEnter(pBt);
+    nUsable = szPage - sqlite3BtreeGetReserveNoMutex(pBt);
+    sqlite3BtreeLeave(pBt);
     p->aCell = sqlite3_malloc((p->nCell+1) * sizeof(StatCell));
     memset(p->aCell, 0, (p->nCell+1) * sizeof(StatCell));
 
@@ -425,7 +428,11 @@ statNextRestart:
     while( p->iCell<p->nCell ){
       StatCell *pCell = &p->aCell[p->iCell];
       if( pCell->iOvfl<pCell->nOvfl ){
-        int nUsable = sqlite3BtreeGetPageSize(pBt)-sqlite3BtreeGetReserve(pBt);
+        int nUsable;
+        sqlite3BtreeEnter(pBt);
+        nUsable = sqlite3BtreeGetPageSize(pBt) - 
+                        sqlite3BtreeGetReserveNoMutex(pBt);
+        sqlite3BtreeLeave(pBt);
         pCsr->zName = (char *)sqlite3_column_text(pCsr->pStmt, 0);
         pCsr->iPageno = pCell->aOvfl[pCell->iOvfl];
         pCsr->zPagetype = "overflow";
diff --git a/src/test_superlock.c b/src/test_superlock.c
index 936fcad0c5..cac789842d 100644
--- a/src/test_superlock.c
+++ b/src/test_superlock.c
@@ -18,7 +18,7 @@
 **   sqlite3demo_superunlock()
 */
 
-#include <sqlite3.h>
+#include "sqlite3.h"
 #include <string.h>               /* memset(), strlen() */
 #include <assert.h>               /* assert() */
 
diff --git a/src/test_vfs.c b/src/test_vfs.c
index 561addfcc5..2277cf7eb5 100644
--- a/src/test_vfs.c
+++ b/src/test_vfs.c
@@ -967,16 +967,15 @@ static void tvfsShmBarrier(sqlite3_file *pFile){
   TestvfsFd *pFd = tvfsGetFd(pFile);
   Testvfs *p = (Testvfs *)(pFd->pVfs->pAppData);
 
+  if( p->pScript && p->mask&TESTVFS_SHMBARRIER_MASK ){
+    const char *z = pFd->pShm ? pFd->pShm->zFile : "";
+    tvfsExecTcl(p, "xShmBarrier", Tcl_NewStringObj(z, -1), pFd->pShmId, 0, 0);
+  }
+
   if( p->isFullshm ){
     sqlite3OsShmBarrier(pFd->pReal);
     return;
   }
-
-  if( p->pScript && p->mask&TESTVFS_SHMBARRIER_MASK ){
-    tvfsExecTcl(p, "xShmBarrier", 
-        Tcl_NewStringObj(pFd->pShm->zFile, -1), pFd->pShmId, 0, 0
-    );
-  }
 }
 
 static int tvfsShmUnmap(
@@ -1532,7 +1531,7 @@ static int testvfs_cmd(
   return TCL_OK;
 
  bad_args:
-  Tcl_WrongNumArgs(interp, 1, objv, "VFSNAME ?-noshm BOOL? ?-default BOOL? ?-mxpathname INT? ?-szosfile INT? ?-iversion INT?");
+  Tcl_WrongNumArgs(interp, 1, objv, "VFSNAME ?-noshm BOOL? ?-fullshm BOOL? ?-default BOOL? ?-mxpathname INT? ?-szosfile INT? ?-iversion INT?");
   return TCL_ERROR;
 }
 
diff --git a/src/tokenize.c b/src/tokenize.c
index f0360eef61..6fb5a35c3d 100644
--- a/src/tokenize.c
+++ b/src/tokenize.c
@@ -390,10 +390,7 @@ int sqlite3RunParser(Parse *pParse, const char *zSql, char **pzErrMsg){
   sqlite3 *db = pParse->db;       /* The database connection */
   int mxSqlLen;                   /* Max length of an SQL string */
 
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( zSql==0 || pzErrMsg==0 ) return SQLITE_MISUSE_BKPT;
-#endif
+  assert( zSql!=0 );
   mxSqlLen = db->aLimit[SQLITE_LIMIT_SQL_LENGTH];
   if( db->nVdbeActive==0 ){
     db->u1.isInterrupted = 0;
diff --git a/src/vacuum.c b/src/vacuum.c
index 9df8e08b22..dca43e217e 100644
--- a/src/vacuum.c
+++ b/src/vacuum.c
@@ -184,7 +184,7 @@ int sqlite3RunVacuum(char **pzErrMsg, sqlite3 *db){
   ** cause problems for the call to BtreeSetPageSize() below.  */
   sqlite3BtreeCommit(pTemp);
 
-  nRes = sqlite3BtreeGetReserve(pMain);
+  nRes = sqlite3BtreeGetOptimalReserve(pMain);
 
   /* A VACUUM cannot change the pagesize of an encrypted database. */
 #ifdef SQLITE_HAS_CODEC
diff --git a/src/vdbe.c b/src/vdbe.c
index 1e0ff96af4..7d6d2b4f5d 100644
--- a/src/vdbe.c
+++ b/src/vdbe.c
@@ -1015,7 +1015,7 @@ case OP_Real: {            /* same as TK_FLOAT, out2-prerelease */
 ** Synopsis: r[P2]='P4'
 **
 ** P4 points to a nul terminated UTF-8 string. This opcode is transformed 
-** into a String before it is executed for the first time.  During
+** into a String opcode before it is executed for the first time.  During
 ** this transformation, the length of string P4 is computed and stored
 ** as the P1 parameter.
 */
@@ -1047,10 +1047,15 @@ case OP_String8: {         /* same as TK_STRING, out2-prerelease */
   /* Fall through to the next case, OP_String */
 }
   
-/* Opcode: String P1 P2 * P4 *
+/* Opcode: String P1 P2 P3 P4 P5
 ** Synopsis: r[P2]='P4' (len=P1)
 **
 ** The string value P4 of length P1 (bytes) is stored in register P2.
+**
+** If P5!=0 and the content of register P3 is greater than zero, then
+** the datatype of the register P2 is converted to BLOB.  The content is
+** the same sequence of bytes, it is merely interpreted as a BLOB instead
+** of a string, as if it had been CAST.
 */
 case OP_String: {          /* out2-prerelease */
   assert( pOp->p4.z!=0 );
@@ -1059,6 +1064,13 @@ case OP_String: {          /* out2-prerelease */
   pOut->n = pOp->p1;
   pOut->enc = encoding;
   UPDATE_MAX_BLOBSIZE(pOut);
+  if( pOp->p5 ){
+    assert( pOp->p3>0 );
+    assert( pOp->p3<=(p->nMem-p->nCursor) );
+    pIn3 = &aMem[pOp->p3];
+    assert( pIn3->flags & MEM_Int );
+    if( pIn3->u.i ) pOut->flags = MEM_Blob|MEM_Static|MEM_Term;
+  }
   break;
 }
 
@@ -1505,7 +1517,7 @@ arithmetic_result_is_null:
 **
 ** The interface used by the implementation of the aforementioned functions
 ** to retrieve the collation sequence set by this opcode is not available
-** publicly, only to user functions defined in func.c.
+** publicly.  Only built-in functions have access to this feature.
 */
 case OP_CollSeq: {
   assert( pOp->p4type==P4_COLLSEQ );
@@ -3050,7 +3062,12 @@ case OP_Transaction: {
       p->nStmtDefImmCons = db->nDeferredImmCons;
     }
 
-    /* Gather the schema version number for checking */
+    /* Gather the schema version number for checking:
+    ** IMPLEMENTATION-OF: R-32195-19465 The schema version is used by SQLite
+    ** each time a query is executed to ensure that the internal cache of the
+    ** schema used when compiling the SQL query matches the schema of the
+    ** database against which the compiled query is actually executed.
+    */
     sqlite3BtreeGetMeta(pBt, BTREE_SCHEMA_VERSION, (u32 *)&iMeta);
     iGen = db->aDb[pOp->p1].pSchema->iGeneration;
   }else{
@@ -3218,20 +3235,6 @@ case OP_SetCookie: {       /* in3 */
 ** See also OpenRead.
 */
 case OP_ReopenIdx: {
-  VdbeCursor *pCur;
-
-  assert( pOp->p5==0 );
-  assert( pOp->p4type==P4_KEYINFO );
-  pCur = p->apCsr[pOp->p1];
-  if( pCur && pCur->pgnoRoot==(u32)pOp->p2 ){
-    assert( pCur->iDb==pOp->p3 );      /* Guaranteed by the code generator */
-    break;
-  }
-  /* If the cursor is not currently open or is open on a different
-  ** index, then fall through into OP_OpenRead to force a reopen */
-}
-case OP_OpenRead:
-case OP_OpenWrite: {
   int nField;
   KeyInfo *pKeyInfo;
   int p2;
@@ -3241,8 +3244,20 @@ case OP_OpenWrite: {
   VdbeCursor *pCur;
   Db *pDb;
 
-  assert( (pOp->p5&(OPFLAG_P2ISREG|OPFLAG_BULKCSR))==pOp->p5 );
-  assert( pOp->opcode==OP_OpenWrite || pOp->p5==0 );
+  assert( pOp->p5==0 || pOp->p5==OPFLAG_SEEKEQ );
+  assert( pOp->p4type==P4_KEYINFO );
+  pCur = p->apCsr[pOp->p1];
+  if( pCur && pCur->pgnoRoot==(u32)pOp->p2 ){
+    assert( pCur->iDb==pOp->p3 );      /* Guaranteed by the code generator */
+    goto open_cursor_set_hints;
+  }
+  /* If the cursor is not currently open or is open on a different
+  ** index, then fall through into OP_OpenRead to force a reopen */
+case OP_OpenRead:
+case OP_OpenWrite:
+
+  assert( (pOp->p5&(OPFLAG_P2ISREG|OPFLAG_BULKCSR|OPFLAG_SEEKEQ))==pOp->p5 );
+  assert( pOp->opcode==OP_OpenWrite || pOp->p5==0 || pOp->p5==OPFLAG_SEEKEQ );
   assert( p->bIsReader );
   assert( pOp->opcode==OP_OpenRead || pOp->opcode==OP_ReopenIdx
           || p->readOnly==0 );
@@ -3305,14 +3320,17 @@ case OP_OpenWrite: {
   pCur->pgnoRoot = p2;
   rc = sqlite3BtreeCursor(pX, p2, wrFlag, pKeyInfo, pCur->pCursor);
   pCur->pKeyInfo = pKeyInfo;
-  assert( OPFLAG_BULKCSR==BTREE_BULKLOAD );
-  sqlite3BtreeCursorHints(pCur->pCursor, (pOp->p5 & OPFLAG_BULKCSR));
-
   /* Set the VdbeCursor.isTable variable. Previous versions of
   ** SQLite used to check if the root-page flags were sane at this point
   ** and report database corruption if they were not, but this check has
   ** since moved into the btree layer.  */  
   pCur->isTable = pOp->p4type!=P4_KEYINFO;
+
+open_cursor_set_hints:
+  assert( OPFLAG_BULKCSR==BTREE_BULKLOAD );
+  assert( OPFLAG_SEEKEQ==BTREE_SEEK_EQ );
+  sqlite3BtreeCursorHints(pCur->pCursor,
+                          (pOp->p5 & (OPFLAG_BULKCSR|OPFLAG_SEEKEQ)));
   break;
 }
 
@@ -3573,6 +3591,22 @@ case OP_SeekGT: {       /* jump, in3 */
 #ifdef SQLITE_DEBUG
   pC->seekOp = pOp->opcode;
 #endif
+
+  /* For a cursor with the BTREE_SEEK_EQ hint, only the OP_SeekGE and
+  ** OP_SeekLE opcodes are allowed, and these must be immediately followed
+  ** by an OP_IdxGT or OP_IdxLT opcode, respectively, with the same key.
+  */
+#ifdef SQLITE_DEBUG
+  if( sqlite3BtreeCursorHasHint(pC->pCursor, BTREE_SEEK_EQ) ){
+    assert( pOp->opcode==OP_SeekGE || pOp->opcode==OP_SeekLE );
+    assert( pOp[1].opcode==OP_IdxLT || pOp[1].opcode==OP_IdxGT );
+    assert( pOp[1].p1==pOp[0].p1 );
+    assert( pOp[1].p2==pOp[0].p2 );
+    assert( pOp[1].p3==pOp[0].p3 );
+    assert( pOp[1].p4.i==pOp[0].p4.i );
+  }
+#endif
+ 
   if( pC->isTable ){
     /* The input value in P3 might be of any type: integer, real, string,
     ** blob, or NULL.  But it needs to be an integer before we can do
@@ -5568,10 +5602,12 @@ case OP_MemMax: {        /* in2 */
 /* Opcode: IfPos P1 P2 * * *
 ** Synopsis: if r[P1]>0 goto P2
 **
-** If the value of register P1 is 1 or greater, jump to P2.
+** Register P1 must contain an integer.
+** If the value of register P1 is 1 or greater, jump to P2 and
+** add the literal value P3 to register P1.
 **
-** It is illegal to use this instruction on a register that does
-** not contain an integer.  An assertion fault will result if you try.
+** If the initial value of register P1 is less than 1, then the
+** value is unchanged and control passes through to the next instruction.
 */
 case OP_IfPos: {        /* jump, in1 */
   pIn1 = &aMem[pOp->p1];
@@ -5600,16 +5636,34 @@ case OP_IfNeg: {        /* jump, in1 */
   break;
 }
 
-/* Opcode: IfZero P1 P2 P3 * *
-** Synopsis: r[P1]+=P3, if r[P1]==0 goto P2
+/* Opcode: IfNotZero P1 P2 P3 * *
+** Synopsis: if r[P1]!=0 then r[P1]+=P3, goto P2
 **
-** The register P1 must contain an integer.  Add literal P3 to the
-** value in register P1.  If the result is exactly 0, jump to P2. 
+** Register P1 must contain an integer.  If the content of register P1 is
+** initially nonzero, then add P3 to P1 and jump to P2.  If register P1 is
+** initially zero, leave it unchanged and fall through.
 */
-case OP_IfZero: {        /* jump, in1 */
+case OP_IfNotZero: {        /* jump, in1 */
   pIn1 = &aMem[pOp->p1];
   assert( pIn1->flags&MEM_Int );
-  pIn1->u.i += pOp->p3;
+  VdbeBranchTaken(pIn1->u.i<0, 2);
+  if( pIn1->u.i ){
+     pIn1->u.i += pOp->p3;
+     pc = pOp->p2 - 1;
+  }
+  break;
+}
+
+/* Opcode: DecrJumpZero P1 P2 * * *
+** Synopsis: if (--r[P1])==0 goto P2
+**
+** Register P1 must hold an integer.  Decrement the value in register P1
+** then jump to P2 if the new value is exactly zero.
+*/
+case OP_DecrJumpZero: {      /* jump, in1 */
+  pIn1 = &aMem[pOp->p1];
+  assert( pIn1->flags&MEM_Int );
+  pIn1->u.i--;
   VdbeBranchTaken(pIn1->u.i==0, 2);
   if( pIn1->u.i==0 ){
      pc = pOp->p2 - 1;
@@ -5617,6 +5671,24 @@ case OP_IfZero: {        /* jump, in1 */
   break;
 }
 
+
+/* Opcode: JumpZeroIncr P1 P2 * * *
+** Synopsis: if (r[P1]++)==0 ) goto P2
+**
+** The register P1 must contain an integer.  If register P1 is initially
+** zero, then jump to P2.  Increment register P1 regardless of whether or
+** not the jump is taken.
+*/
+case OP_JumpZeroIncr: {        /* jump, in1 */
+  pIn1 = &aMem[pOp->p1];
+  assert( pIn1->flags&MEM_Int );
+  VdbeBranchTaken(pIn1->u.i==0, 2);
+  if( (pIn1->u.i++)==0 ){
+     pc = pOp->p2 - 1;
+  }
+  break;
+}
+
 /* Opcode: AggStep * P2 P3 P4 P5
 ** Synopsis: accum=r[P3] step(r[P2@P5])
 **
@@ -5954,13 +6026,29 @@ case OP_VBegin: {
 #endif /* SQLITE_OMIT_VIRTUALTABLE */
 
 #ifndef SQLITE_OMIT_VIRTUALTABLE
-/* Opcode: VCreate P1 * * P4 *
+/* Opcode: VCreate P1 P2 * * *
 **
-** P4 is the name of a virtual table in database P1. Call the xCreate method
-** for that table.
+** P2 is a register that holds the name of a virtual table in database 
+** P1. Call the xCreate method for that table.
 */
 case OP_VCreate: {
-  rc = sqlite3VtabCallCreate(db, pOp->p1, pOp->p4.z, &p->zErrMsg);
+  Mem sMem;          /* For storing the record being decoded */
+  const char *zTab;  /* Name of the virtual table */
+
+  memset(&sMem, 0, sizeof(sMem));
+  sMem.db = db;
+  /* Because P2 is always a static string, it is impossible for the
+  ** sqlite3VdbeMemCopy() to fail */
+  assert( (aMem[pOp->p2].flags & MEM_Str)!=0 );
+  assert( (aMem[pOp->p2].flags & MEM_Static)!=0 );
+  rc = sqlite3VdbeMemCopy(&sMem, &aMem[pOp->p2]);
+  assert( rc==SQLITE_OK );
+  zTab = (const char*)sqlite3_value_text(&sMem);
+  assert( zTab || db->mallocFailed );
+  if( zTab ){
+    rc = sqlite3VtabCallCreate(db, pOp->p1, zTab, &p->zErrMsg);
+  }
+  sqlite3VdbeMemRelease(&sMem);
   break;
 }
 #endif /* SQLITE_OMIT_VIRTUALTABLE */
diff --git a/src/vdbeInt.h b/src/vdbeInt.h
index 1a7297e946..877da1143c 100644
--- a/src/vdbeInt.h
+++ b/src/vdbeInt.h
@@ -344,6 +344,9 @@ struct Vdbe {
   u32 cacheCtr;           /* VdbeCursor row cache generation counter */
   int pc;                 /* The program counter */
   int rc;                 /* Value to return */
+#ifdef SQLITE_DEBUG
+  int rcApp;              /* errcode set by sqlite3_result_error_code() */
+#endif
   u16 nResColumn;         /* Number of columns in one row of the result set */
   u8 errorAction;         /* Recovery action to do in case of an error */
   u8 minWriteFileFormat;  /* Minimum file format for writable database files */
diff --git a/src/vdbeapi.c b/src/vdbeapi.c
index 21c537d776..e03640dfbd 100644
--- a/src/vdbeapi.c
+++ b/src/vdbeapi.c
@@ -170,6 +170,10 @@ const void *sqlite3_value_text16le(sqlite3_value *pVal){
   return sqlite3ValueText(pVal, SQLITE_UTF16LE);
 }
 #endif /* SQLITE_OMIT_UTF16 */
+/* EVIDENCE-OF: R-12793-43283 Every value in SQLite has one of five
+** fundamental datatypes: 64-bit signed integer 64-bit IEEE floating
+** point number string BLOB NULL
+*/
 int sqlite3_value_type(sqlite3_value* pVal){
   static const u8 aType[] = {
      SQLITE_BLOB,     /* 0x00 */
@@ -365,6 +369,9 @@ void sqlite3_result_zeroblob(sqlite3_context *pCtx, int n){
 void sqlite3_result_error_code(sqlite3_context *pCtx, int errCode){
   pCtx->isError = errCode;
   pCtx->fErrorOrAux = 1;
+#ifdef SQLITE_DEBUG
+  if( pCtx->pVdbe ) pCtx->pVdbe->rcApp = errCode;
+#endif
   if( pCtx->pOut->flags & MEM_Null ){
     sqlite3VdbeMemSetStr(pCtx->pOut, sqlite3ErrStr(errCode), -1, 
                          SQLITE_UTF8, SQLITE_STATIC);
@@ -445,7 +452,7 @@ static int sqlite3Step(Vdbe *p){
     ** or SQLITE_BUSY error.
     */
 #ifdef SQLITE_OMIT_AUTORESET
-    if( p->rc==SQLITE_BUSY || p->rc==SQLITE_LOCKED ){
+    if( (rc = p->rc&0xff)==SQLITE_BUSY || rc==SQLITE_LOCKED ){
       sqlite3_reset((sqlite3_stmt*)p);
     }else{
       return SQLITE_MISUSE_BKPT;
@@ -491,6 +498,9 @@ static int sqlite3Step(Vdbe *p){
     if( p->bIsReader ) db->nVdbeRead++;
     p->pc = 0;
   }
+#ifdef SQLITE_DEBUG
+  p->rcApp = SQLITE_OK;
+#endif
 #ifndef SQLITE_OMIT_EXPLAIN
   if( p->explain ){
     rc = sqlite3VdbeList(p);
@@ -535,7 +545,7 @@ end_of_step:
   assert( rc==SQLITE_ROW  || rc==SQLITE_DONE   || rc==SQLITE_ERROR 
        || rc==SQLITE_BUSY || rc==SQLITE_MISUSE
   );
-  assert( p->rc!=SQLITE_ROW && p->rc!=SQLITE_DONE );
+  assert( (p->rc!=SQLITE_ROW && p->rc!=SQLITE_DONE) || p->rc==p->rcApp );
   if( p->isPrepareV2 && rc!=SQLITE_ROW && rc!=SQLITE_DONE ){
     /* If this statement was prepared using sqlite3_prepare_v2(), and an
     ** error has occurred, then return the error code in p->rc to the
@@ -623,16 +633,26 @@ sqlite3 *sqlite3_context_db_handle(sqlite3_context *p){
 }
 
 /*
-** Return the current time for a statement
+** Return the current time for a statement.  If the current time
+** is requested more than once within the same run of a single prepared
+** statement, the exact same time is returned for each invocation regardless
+** of the amount of time that elapses between invocations.  In other words,
+** the time returned is always the time of the first call.
 */
 sqlite3_int64 sqlite3StmtCurrentTime(sqlite3_context *p){
-  Vdbe *v = p->pVdbe;
   int rc;
-  if( v->iCurrentTime==0 ){
-    rc = sqlite3OsCurrentTimeInt64(p->pOut->db->pVfs, &v->iCurrentTime);
-    if( rc ) v->iCurrentTime = 0;
+#ifndef SQLITE_ENABLE_STAT3_OR_STAT4
+  sqlite3_int64 *piTime = &p->pVdbe->iCurrentTime;
+  assert( p->pVdbe!=0 );
+#else
+  sqlite3_int64 iTime = 0;
+  sqlite3_int64 *piTime = p->pVdbe!=0 ? &p->pVdbe->iCurrentTime : &iTime;
+#endif
+  if( *piTime==0 ){
+    rc = sqlite3OsCurrentTimeInt64(p->pOut->db->pVfs, piTime);
+    if( rc ) *piTime = 0;
   }
-  return v->iCurrentTime;
+  return *piTime;
 }
 
 /*
@@ -702,6 +722,11 @@ void *sqlite3_get_auxdata(sqlite3_context *pCtx, int iArg){
   AuxData *pAuxData;
 
   assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) );
+#if SQLITE_ENABLE_STAT3_OR_STAT4
+  if( pCtx->pVdbe==0 ) return 0;
+#else
+  assert( pCtx->pVdbe!=0 );
+#endif
   for(pAuxData=pCtx->pVdbe->pAuxData; pAuxData; pAuxData=pAuxData->pNext){
     if( pAuxData->iOp==pCtx->iOp && pAuxData->iArg==iArg ) break;
   }
@@ -725,6 +750,11 @@ void sqlite3_set_auxdata(
 
   assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) );
   if( iArg<0 ) goto failed;
+#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+  if( pVdbe==0 ) goto failed;
+#else
+  assert( pVdbe!=0 );
+#endif
 
   for(pAuxData=pVdbe->pAuxData; pAuxData; pAuxData=pAuxData->pNext){
     if( pAuxData->iOp==pCtx->iOp && pAuxData->iArg==iArg ) break;
diff --git a/src/vdbeaux.c b/src/vdbeaux.c
index cd9ecaa691..9c105cc9e7 100644
--- a/src/vdbeaux.c
+++ b/src/vdbeaux.c
@@ -2143,7 +2143,7 @@ static int vdbeCommit(sqlite3 *db, Vdbe *p){
     ** doing this the directory is synced again before any individual
     ** transaction files are deleted.
     */
-    rc = sqlite3OsDelete(pVfs, zMaster, 1);
+    rc = sqlite3OsDelete(pVfs, zMaster, needSync);
     sqlite3DbFree(db, zMaster);
     zMaster = 0;
     if( rc ){
diff --git a/src/vdbeblob.c b/src/vdbeblob.c
index cf1eb59054..ea01f5ce80 100644
--- a/src/vdbeblob.c
+++ b/src/vdbeblob.c
@@ -154,12 +154,17 @@ int sqlite3_blob_open(
   Incrblob *pBlob = 0;
 
 #ifdef SQLITE_ENABLE_API_ARMOR
-  if( !sqlite3SafetyCheckOk(db) || ppBlob==0 || zTable==0 ){
+  if( ppBlob==0 ){
+    return SQLITE_MISUSE_BKPT;
+  }
+#endif
+  *ppBlob = 0;
+#ifdef SQLITE_ENABLE_API_ARMOR
+  if( !sqlite3SafetyCheckOk(db) || zTable==0 ){
     return SQLITE_MISUSE_BKPT;
   }
 #endif
   flags = !!flags;                /* flags = (flags ? 1 : 0); */
-  *ppBlob = 0;
 
   sqlite3_mutex_enter(db->mutex);
 
@@ -373,7 +378,7 @@ static int blobReadWrite(
   sqlite3_mutex_enter(db->mutex);
   v = (Vdbe*)p->pStmt;
 
-  if( n<0 || iOffset<0 || (iOffset+n)>p->nByte ){
+  if( n<0 || iOffset<0 || ((sqlite3_int64)iOffset+n)>p->nByte ){
     /* Request is out of range. Return a transient error. */
     rc = SQLITE_ERROR;
   }else if( v==0 ){
diff --git a/src/vdbemem.c b/src/vdbemem.c
index 870fb5bd89..76147442ab 100644
--- a/src/vdbemem.c
+++ b/src/vdbemem.c
@@ -1090,7 +1090,7 @@ struct ValueNewStat4Ctx {
 ** Otherwise, if the second argument is non-zero, then this function is 
 ** being called indirectly by sqlite3Stat4ProbeSetValue(). If it has not
 ** already been allocated, allocate the UnpackedRecord structure that 
-** that function will return to its caller here. Then return a pointer 
+** that function will return to its caller here. Then return a pointer to
 ** an sqlite3_value within the UnpackedRecord.a[] array.
 */
 static sqlite3_value *valueNew(sqlite3 *db, struct ValueNewStat4Ctx *p){
@@ -1134,6 +1134,113 @@ static sqlite3_value *valueNew(sqlite3 *db, struct ValueNewStat4Ctx *p){
   return sqlite3ValueNew(db);
 }
 
+/*
+** The expression object indicated by the second argument is guaranteed
+** to be a scalar SQL function. If
+**
+**   * all function arguments are SQL literals,
+**   * the SQLITE_FUNC_CONSTANT function flag is set, and
+**   * the SQLITE_FUNC_NEEDCOLL function flag is not set,
+**
+** then this routine attempts to invoke the SQL function. Assuming no
+** error occurs, output parameter (*ppVal) is set to point to a value 
+** object containing the result before returning SQLITE_OK.
+**
+** Affinity aff is applied to the result of the function before returning.
+** If the result is a text value, the sqlite3_value object uses encoding 
+** enc.
+**
+** If the conditions above are not met, this function returns SQLITE_OK
+** and sets (*ppVal) to NULL. Or, if an error occurs, (*ppVal) is set to
+** NULL and an SQLite error code returned.
+*/
+#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+static int valueFromFunction(
+  sqlite3 *db,                    /* The database connection */
+  Expr *p,                        /* The expression to evaluate */
+  u8 enc,                         /* Encoding to use */
+  u8 aff,                         /* Affinity to use */
+  sqlite3_value **ppVal,          /* Write the new value here */
+  struct ValueNewStat4Ctx *pCtx   /* Second argument for valueNew() */
+){
+  sqlite3_context ctx;            /* Context object for function invocation */
+  sqlite3_value **apVal = 0;      /* Function arguments */
+  int nVal = 0;                   /* Size of apVal[] array */
+  FuncDef *pFunc = 0;             /* Function definition */
+  sqlite3_value *pVal = 0;        /* New value */
+  int rc = SQLITE_OK;             /* Return code */
+  int nName;                      /* Size of function name in bytes */
+  ExprList *pList = 0;            /* Function arguments */
+  int i;                          /* Iterator variable */
+
+  assert( pCtx!=0 );
+  assert( (p->flags & EP_TokenOnly)==0 );
+  pList = p->x.pList;
+  if( pList ) nVal = pList->nExpr;
+  nName = sqlite3Strlen30(p->u.zToken);
+  pFunc = sqlite3FindFunction(db, p->u.zToken, nName, nVal, enc, 0);
+  assert( pFunc );
+  if( (pFunc->funcFlags & SQLITE_FUNC_CONSTANT)==0 
+   || (pFunc->funcFlags & SQLITE_FUNC_NEEDCOLL)
+  ){
+    return SQLITE_OK;
+  }
+
+  if( pList ){
+    apVal = (sqlite3_value**)sqlite3DbMallocZero(db, sizeof(apVal[0]) * nVal);
+    if( apVal==0 ){
+      rc = SQLITE_NOMEM;
+      goto value_from_function_out;
+    }
+    for(i=0; i<nVal; i++){
+      rc = sqlite3ValueFromExpr(db, pList->a[i].pExpr, enc, aff, &apVal[i]);
+      if( apVal[i]==0 || rc!=SQLITE_OK ) goto value_from_function_out;
+    }
+  }
+
+  pVal = valueNew(db, pCtx);
+  if( pVal==0 ){
+    rc = SQLITE_NOMEM;
+    goto value_from_function_out;
+  }
+
+  assert( pCtx->pParse->rc==SQLITE_OK );
+  memset(&ctx, 0, sizeof(ctx));
+  ctx.pOut = pVal;
+  ctx.pFunc = pFunc;
+  pFunc->xFunc(&ctx, nVal, apVal);
+  if( ctx.isError ){
+    rc = ctx.isError;
+    sqlite3ErrorMsg(pCtx->pParse, "%s", sqlite3_value_text(pVal));
+  }else{
+    sqlite3ValueApplyAffinity(pVal, aff, SQLITE_UTF8);
+    assert( rc==SQLITE_OK );
+    rc = sqlite3VdbeChangeEncoding(pVal, enc);
+    if( rc==SQLITE_OK && sqlite3VdbeMemTooBig(pVal) ){
+      rc = SQLITE_TOOBIG;
+      pCtx->pParse->nErr++;
+    }
+  }
+  pCtx->pParse->rc = rc;
+
+ value_from_function_out:
+  if( rc!=SQLITE_OK ){
+    pVal = 0;
+  }
+  if( apVal ){
+    for(i=0; i<nVal; i++){
+      sqlite3ValueFree(apVal[i]);
+    }
+    sqlite3DbFree(db, apVal);
+  }
+
+  *ppVal = pVal;
+  return rc;
+}
+#else
+# define valueFromFunction(a,b,c,d,e,f) SQLITE_OK
+#endif /* defined(SQLITE_ENABLE_STAT3_OR_STAT4) */
+
 /*
 ** Extract a value from the supplied expression in the manner described
 ** above sqlite3ValueFromExpr(). Allocate the sqlite3_value object
@@ -1166,6 +1273,12 @@ static int valueFromExpr(
   while( (op = pExpr->op)==TK_UPLUS ) pExpr = pExpr->pLeft;
   if( NEVER(op==TK_REGISTER) ) op = pExpr->op2;
 
+  /* Compressed expressions only appear when parsing the DEFAULT clause
+  ** on a table column definition, and hence only when pCtx==0.  This
+  ** check ensures that an EP_TokenOnly expression is never passed down
+  ** into valueFromFunction(). */
+  assert( (pExpr->flags & EP_TokenOnly)==0 || pCtx==0 );
+
   if( op==TK_CAST ){
     u8 aff = sqlite3AffinityType(pExpr->u.zToken,0);
     rc = valueFromExpr(db, pExpr->pLeft, enc, aff, ppVal, pCtx);
@@ -1242,6 +1355,12 @@ static int valueFromExpr(
   }
 #endif
 
+#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
+  else if( op==TK_FUNCTION && pCtx!=0 ){
+    rc = valueFromFunction(db, pExpr, enc, affinity, &pVal, pCtx);
+  }
+#endif
+
   *ppVal = pVal;
   return rc;
 
diff --git a/src/vdbesort.c b/src/vdbesort.c
index 5a43a10542..bbdafa8230 100644
--- a/src/vdbesort.c
+++ b/src/vdbesort.c
@@ -1151,6 +1151,7 @@ static int vdbeSorterOpenTempFile(
   sqlite3_file **ppFd
 ){
   int rc;
+  if( sqlite3FaultSim(202) ) return SQLITE_IOERR_ACCESS;
   rc = sqlite3OsOpenMalloc(db->pVfs, 0, ppFd,
       SQLITE_OPEN_TEMP_JOURNAL |
       SQLITE_OPEN_READWRITE    | SQLITE_OPEN_CREATE |
diff --git a/src/vtab.c b/src/vtab.c
index 6834b18826..3b26147e3b 100644
--- a/src/vtab.c
+++ b/src/vtab.c
@@ -389,6 +389,7 @@ void sqlite3VtabFinishParse(Parse *pParse, Token *pEnd){
     char *zStmt;
     char *zWhere;
     int iDb;
+    int iReg;
     Vdbe *v;
 
     /* Compute the complete text of the CREATE VIRTUAL TABLE statement */
@@ -423,8 +424,10 @@ void sqlite3VtabFinishParse(Parse *pParse, Token *pEnd){
     sqlite3VdbeAddOp2(v, OP_Expire, 0, 0);
     zWhere = sqlite3MPrintf(db, "name='%q' AND type='table'", pTab->zName);
     sqlite3VdbeAddParseSchemaOp(v, iDb, zWhere);
-    sqlite3VdbeAddOp4(v, OP_VCreate, iDb, 0, 0, 
-                         pTab->zName, sqlite3Strlen30(pTab->zName) + 1);
+
+    iReg = ++pParse->nMem;
+    sqlite3VdbeAddOp4(v, OP_String8, 0, iReg, 0, pTab->zName, 0);
+    sqlite3VdbeAddOp2(v, OP_VCreate, iDb, iReg);
   }
 
   /* If we are rereading the sqlite_master table create the in-memory
@@ -710,7 +713,9 @@ int sqlite3_declare_vtab(sqlite3 *db, const char *zCreateTable){
   char *zErr = 0;
 
 #ifdef SQLITE_ENABLE_API_ARMOR
-  if( !sqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT;
+  if( !sqlite3SafetyCheckOk(db) || zCreateTable==0 ){
+    return SQLITE_MISUSE_BKPT;
+  }
 #endif
   sqlite3_mutex_enter(db->mutex);
   if( !db->pVtabCtx || !(pTab = db->pVtabCtx->pTab) ){
diff --git a/src/vxworks.h b/src/vxworks.h
new file mode 100644
index 0000000000..45a44453a7
--- /dev/null
+++ b/src/vxworks.h
@@ -0,0 +1,29 @@
+/*
+** 2015-03-02
+**
+** 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 contains code that is specific to Wind River's VxWorks
+*/
+#if defined(__RTP__) || defined(_WRS_KERNEL)
+/* This is VxWorks.  Set up things specially for that OS
+*/
+#include <vxWorks.h>
+#include <pthread.h>  /* amalgamator: dontcache */
+#define OS_VXWORKS 1
+#define SQLITE_OS_OTHER 0
+#define SQLITE_HOMEGROWN_RECURSIVE_MUTEX 1
+#define SQLITE_OMIT_LOAD_EXTENSION 1
+#define SQLITE_ENABLE_LOCKING_STYLE 0
+#define HAVE_UTIME 1
+#else
+/* This is not VxWorks. */
+#define OS_VXWORKS 0
+#endif /* defined(_WRS_KERNEL) */
diff --git a/src/wal.c b/src/wal.c
index 71f4a3d452..558adbcad2 100644
--- a/src/wal.c
+++ b/src/wal.c
@@ -788,9 +788,10 @@ static void walUnlockShared(Wal *pWal, int lockIdx){
                          SQLITE_SHM_UNLOCK | SQLITE_SHM_SHARED);
   WALTRACE(("WAL%p: release SHARED-%s\n", pWal, walLockName(lockIdx)));
 }
-static int walLockExclusive(Wal *pWal, int lockIdx, int n){
+static int walLockExclusive(Wal *pWal, int lockIdx, int n, int fBlock){
   int rc;
   if( pWal->exclusiveMode ) return SQLITE_OK;
+  if( fBlock ) sqlite3OsFileControl(pWal->pDbFd, SQLITE_FCNTL_WAL_BLOCK, 0);
   rc = sqlite3OsShmLock(pWal->pDbFd, lockIdx, n,
                         SQLITE_SHM_LOCK | SQLITE_SHM_EXCLUSIVE);
   WALTRACE(("WAL%p: acquire EXCLUSIVE-%s cnt=%d %s\n", pWal,
@@ -1076,7 +1077,7 @@ static int walIndexRecover(Wal *pWal){
   assert( pWal->writeLock );
   iLock = WAL_ALL_BUT_WRITE + pWal->ckptLock;
   nLock = SQLITE_SHM_NLOCK - iLock;
-  rc = walLockExclusive(pWal, iLock, nLock);
+  rc = walLockExclusive(pWal, iLock, nLock, 0);
   if( rc ){
     return rc;
   }
@@ -1610,7 +1611,7 @@ static int walBusyLock(
 ){
   int rc;
   do {
-    rc = walLockExclusive(pWal, lockIdx, n);
+    rc = walLockExclusive(pWal, lockIdx, n, 0);
   }while( xBusy && rc==SQLITE_BUSY && xBusy(pBusyArg) );
   return rc;
 }
@@ -2043,7 +2044,7 @@ static int walIndexReadHdr(Wal *pWal, int *pChanged){
         walUnlockShared(pWal, WAL_WRITE_LOCK);
         rc = SQLITE_READONLY_RECOVERY;
       }
-    }else if( SQLITE_OK==(rc = walLockExclusive(pWal, WAL_WRITE_LOCK, 1)) ){
+    }else if( SQLITE_OK==(rc = walLockExclusive(pWal, WAL_WRITE_LOCK, 1, 1)) ){
       pWal->writeLock = 1;
       if( SQLITE_OK==(rc = walIndexPage(pWal, 0, &page0)) ){
         badHdr = walIndexTryHdr(pWal, pChanged);
@@ -2249,7 +2250,7 @@ static int walTryBeginRead(Wal *pWal, int *pChanged, int useWal, int cnt){
      && (mxReadMark<pWal->hdr.mxFrame || mxI==0)
     ){
       for(i=1; i<WAL_NREADER; i++){
-        rc = walLockExclusive(pWal, WAL_READ_LOCK(i), 1);
+        rc = walLockExclusive(pWal, WAL_READ_LOCK(i), 1, 0);
         if( rc==SQLITE_OK ){
           mxReadMark = pInfo->aReadMark[i] = pWal->hdr.mxFrame;
           mxI = i;
@@ -2505,7 +2506,7 @@ int sqlite3WalBeginWriteTransaction(Wal *pWal){
   /* Only one writer allowed at a time.  Get the write lock.  Return
   ** SQLITE_BUSY if unable.
   */
-  rc = walLockExclusive(pWal, WAL_WRITE_LOCK, 1);
+  rc = walLockExclusive(pWal, WAL_WRITE_LOCK, 1, 0);
   if( rc ){
     return rc;
   }
@@ -2650,7 +2651,7 @@ static int walRestartLog(Wal *pWal){
     if( pInfo->nBackfill>0 ){
       u32 salt1;
       sqlite3_randomness(4, &salt1);
-      rc = walLockExclusive(pWal, WAL_READ_LOCK(1), WAL_NREADER-1);
+      rc = walLockExclusive(pWal, WAL_READ_LOCK(1), WAL_NREADER-1, 0);
       if( rc==SQLITE_OK ){
         /* If all readers are using WAL_READ_LOCK(0) (in other words if no
         ** readers are currently using the WAL), then the transactions
@@ -2975,7 +2976,7 @@ int sqlite3WalCheckpoint(
 
   /* IMPLEMENTATION-OF: R-62028-47212 All calls obtain an exclusive 
   ** "checkpoint" lock on the database file. */
-  rc = walLockExclusive(pWal, WAL_CKPT_LOCK, 1);
+  rc = walLockExclusive(pWal, WAL_CKPT_LOCK, 1, 0);
   if( rc ){
     /* EVIDENCE-OF: R-10421-19736 If any other process is running a
     ** checkpoint operation at the same time, the lock cannot be obtained and
diff --git a/src/where.c b/src/where.c
index 183a8cb667..921e683d98 100644
--- a/src/where.c
+++ b/src/where.c
@@ -202,7 +202,7 @@ static void whereClauseClear(WhereClause *pWC){
 ** calling this routine.  Such pointers may be reinitialized by referencing
 ** the pWC->a[] array.
 */
-static int whereClauseInsert(WhereClause *pWC, Expr *p, u8 wtFlags){
+static int whereClauseInsert(WhereClause *pWC, Expr *p, u16 wtFlags){
   WhereTerm *pTerm;
   int idx;
   testcase( wtFlags & TERM_VIRTUAL );
@@ -627,7 +627,11 @@ static void exprAnalyzeAll(
 ** so and false if not.
 **
 ** In order for the operator to be optimizible, the RHS must be a string
-** literal that does not begin with a wildcard.  
+** literal that does not begin with a wildcard.  The LHS must be a column
+** that may only be NULL, a string, or a BLOB, never a number. (This means
+** that virtual tables cannot participate in the LIKE optimization.)  If the
+** collating sequence for the column on the LHS must be appropriate for
+** the operator.
 */
 static int isLikeOrGlob(
   Parse *pParse,    /* Parsing and code generating context */
@@ -656,7 +660,7 @@ static int isLikeOrGlob(
   pLeft = pList->a[1].pExpr;
   if( pLeft->op!=TK_COLUMN 
    || sqlite3ExprAffinity(pLeft)!=SQLITE_AFF_TEXT 
-   || IsVirtual(pLeft->pTab)
+   || IsVirtual(pLeft->pTab)  /* Value might be numeric */
   ){
     /* IMP: R-02065-49465 The left-hand side of the LIKE or GLOB operator must
     ** be the name of an indexed column with TEXT affinity. */
@@ -766,6 +770,79 @@ static void markTermAsChild(WhereClause *pWC, int iChild, int iParent){
   pWC->a[iParent].nChild++;
 }
 
+/*
+** Return the N-th AND-connected subterm of pTerm.  Or if pTerm is not
+** a conjunction, then return just pTerm when N==0.  If N is exceeds
+** the number of available subterms, return NULL.
+*/
+static WhereTerm *whereNthSubterm(WhereTerm *pTerm, int N){
+  if( pTerm->eOperator!=WO_AND ){
+    return N==0 ? pTerm : 0;
+  }
+  if( N<pTerm->u.pAndInfo->wc.nTerm ){
+    return &pTerm->u.pAndInfo->wc.a[N];
+  }
+  return 0;
+}
+
+/*
+** Subterms pOne and pTwo are contained within WHERE clause pWC.  The
+** two subterms are in disjunction - they are OR-ed together.
+**
+** If these two terms are both of the form:  "A op B" with the same
+** A and B values but different operators and if the operators are
+** compatible (if one is = and the other is <, for example) then
+** add a new virtual AND term to pWC that is the combination of the
+** two.
+**
+** Some examples:
+**
+**    x<y OR x=y    -->     x<=y
+**    x=y OR x=y    -->     x=y
+**    x<=y OR x<y   -->     x<=y
+**
+** The following is NOT generated:
+**
+**    x<y OR x>y    -->     x!=y     
+*/
+static void whereCombineDisjuncts(
+  SrcList *pSrc,         /* the FROM clause */
+  WhereClause *pWC,      /* The complete WHERE clause */
+  WhereTerm *pOne,       /* First disjunct */
+  WhereTerm *pTwo        /* Second disjunct */
+){
+  u16 eOp = pOne->eOperator | pTwo->eOperator;
+  sqlite3 *db;           /* Database connection (for malloc) */
+  Expr *pNew;            /* New virtual expression */
+  int op;                /* Operator for the combined expression */
+  int idxNew;            /* Index in pWC of the next virtual term */
+
+  if( (pOne->eOperator & (WO_EQ|WO_LT|WO_LE|WO_GT|WO_GE))==0 ) return;
+  if( (pTwo->eOperator & (WO_EQ|WO_LT|WO_LE|WO_GT|WO_GE))==0 ) return;
+  if( (eOp & (WO_EQ|WO_LT|WO_LE))!=eOp
+   && (eOp & (WO_EQ|WO_GT|WO_GE))!=eOp ) return;
+  assert( pOne->pExpr->pLeft!=0 && pOne->pExpr->pRight!=0 );
+  assert( pTwo->pExpr->pLeft!=0 && pTwo->pExpr->pRight!=0 );
+  if( sqlite3ExprCompare(pOne->pExpr->pLeft, pTwo->pExpr->pLeft, -1) ) return;
+  if( sqlite3ExprCompare(pOne->pExpr->pRight, pTwo->pExpr->pRight, -1) )return;
+  /* If we reach this point, it means the two subterms can be combined */
+  if( (eOp & (eOp-1))!=0 ){
+    if( eOp & (WO_LT|WO_LE) ){
+      eOp = WO_LE;
+    }else{
+      assert( eOp & (WO_GT|WO_GE) );
+      eOp = WO_GE;
+    }
+  }
+  db = pWC->pWInfo->pParse->db;
+  pNew = sqlite3ExprDup(db, pOne->pExpr, 0);
+  if( pNew==0 ) return;
+  for(op=TK_EQ; eOp!=(WO_EQ<<(op-TK_EQ)); op++){ assert( op<TK_GE ); }
+  pNew->op = op;
+  idxNew = whereClauseInsert(pWC, pNew, TERM_VIRTUAL|TERM_DYNAMIC);
+  exprAnalyze(pSrc, pWC, idxNew);
+}
+
 #if !defined(SQLITE_OMIT_OR_OPTIMIZATION) && !defined(SQLITE_OMIT_SUBQUERY)
 /*
 ** Analyze a term that consists of two or more OR-connected
@@ -790,6 +867,7 @@ static void markTermAsChild(WhereClause *pWC, int iChild, int iParent){
 **     (C)     t1.x=t2.y OR (t1.x=t2.z AND t1.y=15)
 **     (D)     x=expr1 OR (y>11 AND y<22 AND z LIKE '*hello*')
 **     (E)     (p.a=1 AND q.b=2 AND r.c=3) OR (p.x=4 AND q.y=5 AND r.z=6)
+**     (F)     x>A OR (x=A AND y>=B)
 **
 ** CASE 1:
 **
@@ -806,6 +884,16 @@ static void markTermAsChild(WhereClause *pWC, int iChild, int iParent){
 **
 ** CASE 2:
 **
+** If there are exactly two disjuncts one side has x>A and the other side
+** has x=A (for the same x and A) then add a new virtual conjunct term to the
+** WHERE clause of the form "x>=A".  Example:
+**
+**      x>A OR (x=A AND y>B)    adds:    x>=A
+**
+** The added conjunct can sometimes be helpful in query planning.
+**
+** CASE 3:
+**
 ** If all subterms are indexable by a single table T, then set
 **
 **     WhereTerm.eOperator              =  WO_OR
@@ -932,12 +1020,26 @@ static void exprAnalyzeOrTerm(
   }
 
   /*
-  ** Record the set of tables that satisfy case 2.  The set might be
+  ** Record the set of tables that satisfy case 3.  The set might be
   ** empty.
   */
   pOrInfo->indexable = indexable;
   pTerm->eOperator = indexable==0 ? 0 : WO_OR;
 
+  /* For a two-way OR, attempt to implementation case 2.
+  */
+  if( indexable && pOrWc->nTerm==2 ){
+    int iOne = 0;
+    WhereTerm *pOne;
+    while( (pOne = whereNthSubterm(&pOrWc->a[0],iOne++))!=0 ){
+      int iTwo = 0;
+      WhereTerm *pTwo;
+      while( (pTwo = whereNthSubterm(&pOrWc->a[1],iTwo++))!=0 ){
+        whereCombineDisjuncts(pSrc, pWC, pOne, pTwo);
+      }
+    }
+  }
+
   /*
   ** chngToIN holds a set of tables that *might* satisfy case 1.  But
   ** we have to do some additional checking to see if case 1 really
@@ -1067,7 +1169,7 @@ static void exprAnalyzeOrTerm(
       }else{
         sqlite3ExprListDelete(db, pList);
       }
-      pTerm->eOperator = WO_NOOP;  /* case 1 trumps case 2 */
+      pTerm->eOperator = WO_NOOP;  /* case 1 trumps case 3 */
     }
   }
 }
@@ -1105,7 +1207,7 @@ static void exprAnalyze(
   Bitmask extraRight = 0;          /* Extra dependencies on LEFT JOIN */
   Expr *pStr1 = 0;                 /* RHS of LIKE/GLOB operator */
   int isComplete = 0;              /* RHS of LIKE/GLOB ends with wildcard */
-  int noCase = 0;                  /* LIKE/GLOB distinguishes case */
+  int noCase = 0;                  /* uppercase equivalent to lowercase */
   int op;                          /* Top-level operator.  pExpr->op */
   Parse *pParse = pWInfo->pParse;  /* Parsing context */
   sqlite3 *db = pParse->db;        /* Database connection */
@@ -1243,12 +1345,15 @@ static void exprAnalyze(
   /* Add constraints to reduce the search space on a LIKE or GLOB
   ** operator.
   **
-  ** A like pattern of the form "x LIKE 'abc%'" is changed into constraints
+  ** A like pattern of the form "x LIKE 'aBc%'" is changed into constraints
   **
-  **          x>='abc' AND x<'abd' AND x LIKE 'abc%'
+  **          x>='ABC' AND x<'abd' AND x LIKE 'aBc%'
   **
   ** The last character of the prefix "abc" is incremented to form the
-  ** termination condition "abd".
+  ** termination condition "abd".  If case is not significant (the default
+  ** for LIKE) then the lower-bound is made all uppercase and the upper-
+  ** bound is made all lowercase so that the bounds also work when comparing
+  ** BLOBs.
   */
   if( pWC->op==TK_AND 
    && isLikeOrGlob(pParse, pExpr, &pStr1, &isComplete, &noCase)
@@ -1259,10 +1364,26 @@ static void exprAnalyze(
     Expr *pNewExpr2;
     int idxNew1;
     int idxNew2;
-    Token sCollSeqName;  /* Name of collating sequence */
+    const char *zCollSeqName;     /* Name of collating sequence */
+    const u16 wtFlags = TERM_LIKEOPT | TERM_VIRTUAL | TERM_DYNAMIC;
 
     pLeft = pExpr->x.pList->a[1].pExpr;
     pStr2 = sqlite3ExprDup(db, pStr1, 0);
+
+    /* Convert the lower bound to upper-case and the upper bound to
+    ** lower-case (upper-case is less than lower-case in ASCII) so that
+    ** the range constraints also work for BLOBs
+    */
+    if( noCase && !pParse->db->mallocFailed ){
+      int i;
+      char c;
+      pTerm->wtFlags |= TERM_LIKE;
+      for(i=0; (c = pStr1->u.zToken[i])!=0; i++){
+        pStr1->u.zToken[i] = sqlite3Toupper(c);
+        pStr2->u.zToken[i] = sqlite3Tolower(c);
+      }
+    }
+
     if( !db->mallocFailed ){
       u8 c, *pC;       /* Last character before the first wildcard */
       pC = (u8*)&pStr2->u.zToken[sqlite3Strlen30(pStr2->u.zToken)-1];
@@ -1279,22 +1400,21 @@ static void exprAnalyze(
       }
       *pC = c + 1;
     }
-    sCollSeqName.z = noCase ? "NOCASE" : "BINARY";
-    sCollSeqName.n = 6;
+    zCollSeqName = noCase ? "NOCASE" : "BINARY";
     pNewExpr1 = sqlite3ExprDup(db, pLeft, 0);
-    pNewExpr1 = sqlite3PExpr(pParse, TK_GE, 
-           sqlite3ExprAddCollateToken(pParse,pNewExpr1,&sCollSeqName),
+    pNewExpr1 = sqlite3PExpr(pParse, TK_GE,
+           sqlite3ExprAddCollateString(pParse,pNewExpr1,zCollSeqName),
            pStr1, 0);
     transferJoinMarkings(pNewExpr1, pExpr);
-    idxNew1 = whereClauseInsert(pWC, pNewExpr1, TERM_VIRTUAL|TERM_DYNAMIC);
+    idxNew1 = whereClauseInsert(pWC, pNewExpr1, wtFlags);
     testcase( idxNew1==0 );
     exprAnalyze(pSrc, pWC, idxNew1);
     pNewExpr2 = sqlite3ExprDup(db, pLeft, 0);
     pNewExpr2 = sqlite3PExpr(pParse, TK_LT,
-           sqlite3ExprAddCollateToken(pParse,pNewExpr2,&sCollSeqName),
+           sqlite3ExprAddCollateString(pParse,pNewExpr2,zCollSeqName),
            pStr2, 0);
     transferJoinMarkings(pNewExpr2, pExpr);
-    idxNew2 = whereClauseInsert(pWC, pNewExpr2, TERM_VIRTUAL|TERM_DYNAMIC);
+    idxNew2 = whereClauseInsert(pWC, pNewExpr2, wtFlags);
     testcase( idxNew2==0 );
     exprAnalyze(pSrc, pWC, idxNew2);
     pTerm = &pWC->a[idxTerm];
@@ -1612,11 +1732,16 @@ static void constructAutomaticIndex(
   pLoop = pLevel->pWLoop;
   idxCols = 0;
   for(pTerm=pWC->a; pTerm<pWCEnd; pTerm++){
+    Expr *pExpr = pTerm->pExpr;
+    assert( !ExprHasProperty(pExpr, EP_FromJoin)    /* prereq always non-zero */
+         || pExpr->iRightJoinTable!=pSrc->iCursor   /*   for the right-hand   */
+         || pLoop->prereq!=0 );                     /*   table of a LEFT JOIN */
     if( pLoop->prereq==0
      && (pTerm->wtFlags & TERM_VIRTUAL)==0
-     && sqlite3ExprIsTableConstant(pTerm->pExpr, pSrc->iCursor) ){
+     && !ExprHasProperty(pExpr, EP_FromJoin)
+     && sqlite3ExprIsTableConstant(pExpr, pSrc->iCursor) ){
       pPartial = sqlite3ExprAnd(pParse->db, pPartial,
-                                sqlite3ExprDup(pParse->db, pTerm->pExpr, 0));
+                                sqlite3ExprDup(pParse->db, pExpr, 0));
     }
     if( termCanDriveIndex(pTerm, pSrc, notReady) ){
       int iCol = pTerm->u.leftColumn;
@@ -1903,11 +2028,14 @@ static int vtabBestIndex(Parse *pParse, Table *pTab, sqlite3_index_info *p){
 ** Estimate the location of a particular key among all keys in an
 ** index.  Store the results in aStat as follows:
 **
-**    aStat[0]      Est. number of rows less than pVal
-**    aStat[1]      Est. number of rows equal to pVal
+**    aStat[0]      Est. number of rows less than pRec
+**    aStat[1]      Est. number of rows equal to pRec
 **
 ** Return the index of the sample that is the smallest sample that
-** is greater than or equal to pRec.
+** is greater than or equal to pRec. Note that this index is not an index
+** into the aSample[] array - it is an index into a virtual set of samples
+** based on the contents of aSample[] and the number of fields in record 
+** pRec. 
 */
 static int whereKeyStats(
   Parse *pParse,              /* Database connection */
@@ -1918,67 +2046,158 @@ static int whereKeyStats(
 ){
   IndexSample *aSample = pIdx->aSample;
   int iCol;                   /* Index of required stats in anEq[] etc. */
+  int i;                      /* Index of first sample >= pRec */
+  int iSample;                /* Smallest sample larger than or equal to pRec */
   int iMin = 0;               /* Smallest sample not yet tested */
-  int i = pIdx->nSample;      /* Smallest sample larger than or equal to pRec */
   int iTest;                  /* Next sample to test */
   int res;                    /* Result of comparison operation */
+  int nField;                 /* Number of fields in pRec */
+  tRowcnt iLower = 0;         /* anLt[] + anEq[] of largest sample pRec is > */
 
 #ifndef SQLITE_DEBUG
   UNUSED_PARAMETER( pParse );
 #endif
   assert( pRec!=0 );
-  iCol = pRec->nField - 1;
   assert( pIdx->nSample>0 );
-  assert( pRec->nField>0 && iCol<pIdx->nSampleCol );
+  assert( pRec->nField>0 && pRec->nField<=pIdx->nSampleCol );
+
+  /* Do a binary search to find the first sample greater than or equal
+  ** to pRec. If pRec contains a single field, the set of samples to search
+  ** is simply the aSample[] array. If the samples in aSample[] contain more
+  ** than one fields, all fields following the first are ignored.
+  **
+  ** If pRec contains N fields, where N is more than one, then as well as the
+  ** samples in aSample[] (truncated to N fields), the search also has to
+  ** consider prefixes of those samples. For example, if the set of samples
+  ** in aSample is:
+  **
+  **     aSample[0] = (a, 5) 
+  **     aSample[1] = (a, 10) 
+  **     aSample[2] = (b, 5) 
+  **     aSample[3] = (c, 100) 
+  **     aSample[4] = (c, 105)
+  **
+  ** Then the search space should ideally be the samples above and the 
+  ** unique prefixes [a], [b] and [c]. But since that is hard to organize, 
+  ** the code actually searches this set:
+  **
+  **     0: (a) 
+  **     1: (a, 5) 
+  **     2: (a, 10) 
+  **     3: (a, 10) 
+  **     4: (b) 
+  **     5: (b, 5) 
+  **     6: (c) 
+  **     7: (c, 100) 
+  **     8: (c, 105)
+  **     9: (c, 105)
+  **
+  ** For each sample in the aSample[] array, N samples are present in the
+  ** effective sample array. In the above, samples 0 and 1 are based on 
+  ** sample aSample[0]. Samples 2 and 3 on aSample[1] etc.
+  **
+  ** Often, sample i of each block of N effective samples has (i+1) fields.
+  ** Except, each sample may be extended to ensure that it is greater than or
+  ** equal to the previous sample in the array. For example, in the above, 
+  ** sample 2 is the first sample of a block of N samples, so at first it 
+  ** appears that it should be 1 field in size. However, that would make it 
+  ** smaller than sample 1, so the binary search would not work. As a result, 
+  ** it is extended to two fields. The duplicates that this creates do not 
+  ** cause any problems.
+  */
+  nField = pRec->nField;
+  iCol = 0;
+  iSample = pIdx->nSample * nField;
   do{
-    iTest = (iMin+i)/2;
-    res = sqlite3VdbeRecordCompare(aSample[iTest].n, aSample[iTest].p, pRec);
-    if( res<0 ){
-      iMin = iTest+1;
+    int iSamp;                    /* Index in aSample[] of test sample */
+    int n;                        /* Number of fields in test sample */
+
+    iTest = (iMin+iSample)/2;
+    iSamp = iTest / nField;
+    if( iSamp>0 ){
+      /* The proposed effective sample is a prefix of sample aSample[iSamp].
+      ** Specifically, the shortest prefix of at least (1 + iTest%nField) 
+      ** fields that is greater than the previous effective sample.  */
+      for(n=(iTest % nField) + 1; n<nField; n++){
+        if( aSample[iSamp-1].anLt[n-1]!=aSample[iSamp].anLt[n-1] ) break;
+      }
     }else{
-      i = iTest;
+      n = iTest + 1;
     }
-  }while( res && iMin<i );
+
+    pRec->nField = n;
+    res = sqlite3VdbeRecordCompare(aSample[iSamp].n, aSample[iSamp].p, pRec);
+    if( res<0 ){
+      iLower = aSample[iSamp].anLt[n-1] + aSample[iSamp].anEq[n-1];
+      iMin = iTest+1;
+    }else if( res==0 && n<nField ){
+      iLower = aSample[iSamp].anLt[n-1];
+      iMin = iTest+1;
+      res = -1;
+    }else{
+      iSample = iTest;
+      iCol = n-1;
+    }
+  }while( res && iMin<iSample );
+  i = iSample / nField;
 
 #ifdef SQLITE_DEBUG
   /* The following assert statements check that the binary search code
   ** above found the right answer. This block serves no purpose other
   ** than to invoke the asserts.  */
-  if( res==0 ){
-    /* If (res==0) is true, then sample $i must be equal to pRec */
-    assert( i<pIdx->nSample );
-    assert( 0==sqlite3VdbeRecordCompare(aSample[i].n, aSample[i].p, pRec)
-         || pParse->db->mallocFailed );
-  }else{
-    /* Otherwise, pRec must be smaller than sample $i and larger than
-    ** sample ($i-1).  */
-    assert( i==pIdx->nSample 
-         || sqlite3VdbeRecordCompare(aSample[i].n, aSample[i].p, pRec)>0
-         || pParse->db->mallocFailed );
-    assert( i==0
-         || sqlite3VdbeRecordCompare(aSample[i-1].n, aSample[i-1].p, pRec)<0
-         || pParse->db->mallocFailed );
+  if( pParse->db->mallocFailed==0 ){
+    if( res==0 ){
+      /* If (res==0) is true, then pRec must be equal to sample i. */
+      assert( i<pIdx->nSample );
+      assert( iCol==nField-1 );
+      pRec->nField = nField;
+      assert( 0==sqlite3VdbeRecordCompare(aSample[i].n, aSample[i].p, pRec) 
+           || pParse->db->mallocFailed 
+      );
+    }else{
+      /* Unless i==pIdx->nSample, indicating that pRec is larger than
+      ** all samples in the aSample[] array, pRec must be smaller than the
+      ** (iCol+1) field prefix of sample i.  */
+      assert( i<=pIdx->nSample && i>=0 );
+      pRec->nField = iCol+1;
+      assert( i==pIdx->nSample 
+           || sqlite3VdbeRecordCompare(aSample[i].n, aSample[i].p, pRec)>0
+           || pParse->db->mallocFailed );
+
+      /* if i==0 and iCol==0, then record pRec is smaller than all samples
+      ** in the aSample[] array. Otherwise, if (iCol>0) then pRec must
+      ** be greater than or equal to the (iCol) field prefix of sample i.
+      ** If (i>0), then pRec must also be greater than sample (i-1).  */
+      if( iCol>0 ){
+        pRec->nField = iCol;
+        assert( sqlite3VdbeRecordCompare(aSample[i].n, aSample[i].p, pRec)<=0
+             || pParse->db->mallocFailed );
+      }
+      if( i>0 ){
+        pRec->nField = nField;
+        assert( sqlite3VdbeRecordCompare(aSample[i-1].n, aSample[i-1].p, pRec)<0
+             || pParse->db->mallocFailed );
+      }
+    }
   }
 #endif /* ifdef SQLITE_DEBUG */
 
-  /* At this point, aSample[i] is the first sample that is greater than
-  ** or equal to pVal.  Or if i==pIdx->nSample, then all samples are less
-  ** than pVal.  If aSample[i]==pVal, then res==0.
-  */
   if( res==0 ){
+    /* Record pRec is equal to sample i */
+    assert( iCol==nField-1 );
     aStat[0] = aSample[i].anLt[iCol];
     aStat[1] = aSample[i].anEq[iCol];
   }else{
-    tRowcnt iLower, iUpper, iGap;
-    if( i==0 ){
-      iLower = 0;
-      iUpper = aSample[0].anLt[iCol];
+    /* At this point, the (iCol+1) field prefix of aSample[i] is the first 
+    ** sample that is greater than pRec. Or, if i==pIdx->nSample then pRec
+    ** is larger than all samples in the array. */
+    tRowcnt iUpper, iGap;
+    if( i>=pIdx->nSample ){
+      iUpper = sqlite3LogEstToInt(pIdx->aiRowLogEst[0]);
     }else{
-      i64 nRow0 = sqlite3LogEstToInt(pIdx->aiRowLogEst[0]);
-      iUpper = i>=pIdx->nSample ? nRow0 : aSample[i].anLt[iCol];
-      iLower = aSample[i-1].anEq[iCol] + aSample[i-1].anLt[iCol];
+      iUpper = aSample[i].anLt[iCol];
     }
-    aStat[1] = pIdx->aAvgEq[iCol];
+
     if( iLower>=iUpper ){
       iGap = 0;
     }else{
@@ -1990,7 +2209,11 @@ static int whereKeyStats(
       iGap = iGap/3;
     }
     aStat[0] = iLower + iGap;
+    aStat[1] = pIdx->aAvgEq[iCol];
   }
+
+  /* Restore the pRec->nField value before returning.  */
+  pRec->nField = nField;
   return i;
 }
 #endif /* SQLITE_ENABLE_STAT3_OR_STAT4 */
@@ -2464,20 +2687,43 @@ static int whereInScanEst(
 ** but joins might run a little slower.  The trick is to disable as much
 ** as we can without disabling too much.  If we disabled in (1), we'd get
 ** the wrong answer.  See ticket #813.
+**
+** If all the children of a term are disabled, then that term is also
+** automatically disabled.  In this way, terms get disabled if derived
+** virtual terms are tested first.  For example:
+**
+**      x GLOB 'abc*' AND x>='abc' AND x<'acd'
+**      \___________/     \______/     \_____/
+**         parent          child1       child2
+**
+** Only the parent term was in the original WHERE clause.  The child1
+** and child2 terms were added by the LIKE optimization.  If both of
+** the virtual child terms are valid, then testing of the parent can be 
+** skipped.
+**
+** Usually the parent term is marked as TERM_CODED.  But if the parent
+** term was originally TERM_LIKE, then the parent gets TERM_LIKECOND instead.
+** The TERM_LIKECOND marking indicates that the term should be coded inside
+** a conditional such that is only evaluated on the second pass of a
+** LIKE-optimization loop, when scanning BLOBs instead of strings.
 */
 static void disableTerm(WhereLevel *pLevel, WhereTerm *pTerm){
-  if( pTerm
+  int nLoop = 0;
+  while( pTerm
       && (pTerm->wtFlags & TERM_CODED)==0
       && (pLevel->iLeftJoin==0 || ExprHasProperty(pTerm->pExpr, EP_FromJoin))
       && (pLevel->notReady & pTerm->prereqAll)==0
   ){
-    pTerm->wtFlags |= TERM_CODED;
-    if( pTerm->iParent>=0 ){
-      WhereTerm *pOther = &pTerm->pWC->a[pTerm->iParent];
-      if( (--pOther->nChild)==0 ){
-        disableTerm(pLevel, pOther);
-      }
+    if( nLoop && (pTerm->wtFlags & TERM_LIKE)!=0 ){
+      pTerm->wtFlags |= TERM_LIKECOND;
+    }else{
+      pTerm->wtFlags |= TERM_CODED;
     }
+    if( pTerm->iParent<0 ) break;
+    pTerm = &pTerm->pWC->a[pTerm->iParent];
+    pTerm->nChild--;
+    if( pTerm->nChild!=0 ) break;
+    nLoop++;
   }
 }
 
@@ -2961,7 +3207,34 @@ static void addScanStatus(
 # define addScanStatus(a, b, c, d) ((void)d)
 #endif
 
-
+/*
+** If the most recently coded instruction is a constant range contraint
+** that originated from the LIKE optimization, then change the P3 to be
+** pLoop->iLikeRepCntr and set P5.
+**
+** The LIKE optimization trys to evaluate "x LIKE 'abc%'" as a range
+** expression: "x>='ABC' AND x<'abd'".  But this requires that the range
+** scan loop run twice, once for strings and a second time for BLOBs.
+** The OP_String opcodes on the second pass convert the upper and lower
+** bound string contants to blobs.  This routine makes the necessary changes
+** to the OP_String opcodes for that to happen.
+*/
+static void whereLikeOptimizationStringFixup(
+  Vdbe *v,                /* prepared statement under construction */
+  WhereLevel *pLevel,     /* The loop that contains the LIKE operator */
+  WhereTerm *pTerm        /* The upper or lower bound just coded */
+){
+  if( pTerm->wtFlags & TERM_LIKEOPT ){
+    VdbeOp *pOp;
+    assert( pLevel->iLikeRepCntr>0 );
+    pOp = sqlite3VdbeGetOp(v, -1);
+    assert( pOp!=0 );
+    assert( pOp->opcode==OP_String8 
+            || pTerm->pWC->pWInfo->pParse->db->mallocFailed );
+    pOp->p3 = pLevel->iLikeRepCntr;
+    pOp->p5 = 1;
+  }
+}
 
 /*
 ** Generate code for the start of the iLevel-th loop in the WHERE clause
@@ -3291,10 +3564,25 @@ static Bitmask codeOneLoopStart(
     if( pLoop->wsFlags & WHERE_BTM_LIMIT ){
       pRangeStart = pLoop->aLTerm[j++];
       nExtraReg = 1;
+      /* Like optimization range constraints always occur in pairs */
+      assert( (pRangeStart->wtFlags & TERM_LIKEOPT)==0 || 
+              (pLoop->wsFlags & WHERE_TOP_LIMIT)!=0 );
     }
     if( pLoop->wsFlags & WHERE_TOP_LIMIT ){
       pRangeEnd = pLoop->aLTerm[j++];
       nExtraReg = 1;
+      if( (pRangeEnd->wtFlags & TERM_LIKEOPT)!=0 ){
+        assert( pRangeStart!=0 );                     /* LIKE opt constraints */
+        assert( pRangeStart->wtFlags & TERM_LIKEOPT );   /* occur in pairs */
+        pLevel->iLikeRepCntr = ++pParse->nMem;
+        testcase( bRev );
+        testcase( pIdx->aSortOrder[nEq]==SQLITE_SO_DESC );
+        sqlite3VdbeAddOp2(v, OP_Integer,
+                          bRev ^ (pIdx->aSortOrder[nEq]==SQLITE_SO_DESC),
+                          pLevel->iLikeRepCntr);
+        VdbeComment((v, "LIKE loop counter"));
+        pLevel->addrLikeRep = sqlite3VdbeCurrentAddr(v);
+      }
       if( pRangeStart==0
        && (j = pIdx->aiColumn[nEq])>=0 
        && pIdx->pTable->aCol[j].notNull==0
@@ -3337,6 +3625,7 @@ static Bitmask codeOneLoopStart(
     if( pRangeStart ){
       Expr *pRight = pRangeStart->pExpr->pRight;
       sqlite3ExprCode(pParse, pRight, regBase+nEq);
+      whereLikeOptimizationStringFixup(v, pLevel, pRangeStart);
       if( (pRangeStart->wtFlags & TERM_VNULL)==0
        && sqlite3ExprCanBeNull(pRight)
       ){
@@ -3382,6 +3671,7 @@ static Bitmask codeOneLoopStart(
       Expr *pRight = pRangeEnd->pExpr->pRight;
       sqlite3ExprCacheRemove(pParse, regBase+nEq, 1);
       sqlite3ExprCode(pParse, pRight, regBase+nEq);
+      whereLikeOptimizationStringFixup(v, pLevel, pRangeEnd);
       if( (pRangeEnd->wtFlags & TERM_VNULL)==0
        && sqlite3ExprCanBeNull(pRight)
       ){
@@ -3609,7 +3899,8 @@ static Bitmask codeOneLoopStart(
     */
     wctrlFlags =  WHERE_OMIT_OPEN_CLOSE
                 | WHERE_FORCE_TABLE
-                | WHERE_ONETABLE_ONLY;
+                | WHERE_ONETABLE_ONLY
+                | WHERE_NO_AUTOINDEX;
     for(ii=0; ii<pOrWc->nTerm; ii++){
       WhereTerm *pOrTerm = &pOrWc->a[ii];
       if( pOrTerm->leftCursor==iCur || (pOrTerm->eOperator & WO_AND)!=0 ){
@@ -3771,6 +4062,7 @@ static Bitmask codeOneLoopStart(
   */
   for(pTerm=pWC->a, j=pWC->nTerm; j>0; j--, pTerm++){
     Expr *pE;
+    int skipLikeAddr = 0;
     testcase( pTerm->wtFlags & TERM_VIRTUAL );
     testcase( pTerm->wtFlags & TERM_CODED );
     if( pTerm->wtFlags & (TERM_VIRTUAL|TERM_CODED) ) continue;
@@ -3785,7 +4077,13 @@ static Bitmask codeOneLoopStart(
     if( pLevel->iLeftJoin && !ExprHasProperty(pE, EP_FromJoin) ){
       continue;
     }
+    if( pTerm->wtFlags & TERM_LIKECOND ){
+      assert( pLevel->iLikeRepCntr>0 );
+      skipLikeAddr = sqlite3VdbeAddOp1(v, OP_IfNot, pLevel->iLikeRepCntr);
+      VdbeCoverage(v);
+    }
     sqlite3ExprIfFalse(pParse, pE, addrCont, SQLITE_JUMPIFNULL);
+    if( skipLikeAddr ) sqlite3VdbeJumpHere(v, skipLikeAddr);
     pTerm->wtFlags |= TERM_CODED;
   }
 
@@ -4450,6 +4748,10 @@ static int whereLoopAddBtreeIndex(
     }
     if( pTerm->prereqRight & pNew->maskSelf ) continue;
 
+    /* Do not allow the upper bound of a LIKE optimization range constraint
+    ** to mix with a lower range bound from some other source */
+    if( pTerm->wtFlags & TERM_LIKEOPT && pTerm->eOperator==WO_LT ) continue;
+
     pNew->wsFlags = saved_wsFlags;
     pNew->u.btree.nEq = saved_nEq;
     pNew->nLTerm = saved_nLTerm;
@@ -4493,6 +4795,17 @@ static int whereLoopAddBtreeIndex(
       pNew->wsFlags |= WHERE_COLUMN_RANGE|WHERE_BTM_LIMIT;
       pBtm = pTerm;
       pTop = 0;
+      if( pTerm->wtFlags & TERM_LIKEOPT ){
+        /* Range contraints that come from the LIKE optimization are
+        ** always used in pairs. */
+        pTop = &pTerm[1];
+        assert( (pTop-(pTerm->pWC->a))<pTerm->pWC->nTerm );
+        assert( pTop->wtFlags & TERM_LIKEOPT );
+        assert( pTop->eOperator==WO_LT );
+        if( whereLoopResize(db, pNew, pNew->nLTerm+1) ) break; /* OOM */
+        pNew->aLTerm[pNew->nLTerm++] = pTop;
+        pNew->wsFlags |= WHERE_TOP_LIMIT;
+      }
     }else{
       assert( eOp & (WO_LT|WO_LE) );
       testcase( eOp & WO_LT );
@@ -4694,7 +5007,12 @@ static int whereUsablePartialIndex(int iTab, WhereClause *pWC, Expr *pWhere){
   int i;
   WhereTerm *pTerm;
   for(i=0, pTerm=pWC->a; i<pWC->nTerm; i++, pTerm++){
-    if( sqlite3ExprImpliesExpr(pTerm->pExpr, pWhere, iTab) ) return 1;
+    Expr *pExpr = pTerm->pExpr;
+    if( sqlite3ExprImpliesExpr(pExpr, pWhere, iTab) 
+     && (!ExprHasProperty(pExpr, EP_FromJoin) || pExpr->iRightJoinTable==iTab)
+    ){
+      return 1;
+    }
   }
   return 0;
 }
@@ -4798,6 +5116,7 @@ static int whereLoopAddBtree(
 #ifndef SQLITE_OMIT_AUTOMATIC_INDEX
   /* Automatic indexes */
   if( !pBuilder->pOrSet
+   && (pWInfo->wctrlFlags & WHERE_NO_AUTOINDEX)==0
    && (pWInfo->pParse->db->flags & SQLITE_AutoIndex)!=0
    && pSrc->pIndex==0
    && !pSrc->viaCoroutine
@@ -5681,10 +6000,10 @@ static int wherePathSolver(WhereInfo *pWInfo, LogEst nRowEst){
 
   /* Seed the search with a single WherePath containing zero WhereLoops.
   **
-  ** TUNING: Do not let the number of iterations go above 25.  If the cost
-  ** of computing an automatic index is not paid back within the first 25
+  ** TUNING: Do not let the number of iterations go above 28.  If the cost
+  ** of computing an automatic index is not paid back within the first 28
   ** rows, then do not use the automatic index. */
-  aFrom[0].nRow = MIN(pParse->nQueryLoop, 46);  assert( 46==sqlite3LogEst(25) );
+  aFrom[0].nRow = MIN(pParse->nQueryLoop, 48);  assert( 48==sqlite3LogEst(28) );
   nFrom = 1;
   assert( aFrom[0].isOrdered==0 );
   if( nOrderBy ){
@@ -6482,6 +6801,12 @@ WhereInfo *sqlite3WhereBegin(
       if( op ){
         sqlite3VdbeAddOp3(v, op, iIndexCur, pIx->tnum, iDb);
         sqlite3VdbeSetP4KeyInfo(pParse, pIx);
+        if( (pLoop->wsFlags & WHERE_CONSTRAINT)!=0
+         && (pLoop->wsFlags & (WHERE_COLUMN_RANGE|WHERE_SKIPSCAN))==0
+         && (pWInfo->wctrlFlags&WHERE_ORDERBY_MIN)==0
+        ){
+          sqlite3VdbeChangeP5(v, OPFLAG_SEEKEQ); /* Hint to COMDB2 */
+        }
         VdbeComment((v, "%s", pIx->zName));
       }
     }
@@ -6583,6 +6908,16 @@ void sqlite3WhereEnd(WhereInfo *pWInfo){
       sqlite3VdbeJumpHere(v, pLevel->addrSkip);
       sqlite3VdbeJumpHere(v, pLevel->addrSkip-2);
     }
+    if( pLevel->addrLikeRep ){
+      int op;
+      if( sqlite3VdbeGetOp(v, pLevel->addrLikeRep-1)->p1 ){
+        op = OP_DecrJumpZero;
+      }else{
+        op = OP_JumpZeroIncr;
+      }
+      sqlite3VdbeAddOp2(v, op, pLevel->iLikeRepCntr, pLevel->addrLikeRep);
+      VdbeCoverage(v);
+    }
     if( pLevel->iLeftJoin ){
       addr = sqlite3VdbeAddOp1(v, OP_IfPos, pLevel->iLeftJoin); VdbeCoverage(v);
       assert( (pLoop->wsFlags & WHERE_IDX_ONLY)==0
diff --git a/src/whereInt.h b/src/whereInt.h
index 2ccc6ec064..04cc2029d8 100644
--- a/src/whereInt.h
+++ b/src/whereInt.h
@@ -69,6 +69,8 @@ struct WhereLevel {
   int addrCont;         /* Jump here to continue with the next loop cycle */
   int addrFirst;        /* First instruction of interior of the loop */
   int addrBody;         /* Beginning of the body of this loop */
+  int iLikeRepCntr;     /* LIKE range processing counter register */
+  int addrLikeRep;      /* LIKE range processing address */
   u8 iFrom;             /* Which entry in the FROM clause */
   u8 op, p3, p5;        /* Opcode, P3 & P5 of the opcode that ends the loop */
   int p1, p2;           /* Operands of the opcode used to ends the loop */
@@ -253,7 +255,7 @@ struct WhereTerm {
   } u;
   LogEst truthProb;       /* Probability of truth for this expression */
   u16 eOperator;          /* A WO_xx value describing <op> */
-  u8 wtFlags;             /* TERM_xxx bit flags.  See below */
+  u16 wtFlags;            /* TERM_xxx bit flags.  See below */
   u8 nChild;              /* Number of children that must disable us */
   WhereClause *pWC;       /* The clause this term is part of */
   Bitmask prereqRight;    /* Bitmask of tables used by pExpr->pRight */
@@ -275,6 +277,9 @@ struct WhereTerm {
 #else
 #  define TERM_VNULL    0x00   /* Disabled if not using stat3 */
 #endif
+#define TERM_LIKEOPT    0x100  /* Virtual terms from the LIKE optimization */
+#define TERM_LIKECOND   0x200  /* Conditionally this LIKE operator term */
+#define TERM_LIKE       0x400  /* The original LIKE operator */
 
 /*
 ** An instance of the WhereScan object is used as an iterator for locating
diff --git a/test/analyze3.test b/test/analyze3.test
index e7416d5730..d22387dcc3 100644
--- a/test/analyze3.test
+++ b/test/analyze3.test
@@ -281,35 +281,35 @@ do_eqp_test analyze3-2.3 {
 
 do_test analyze3-2.4 {
   sf_execsql { SELECT count(*) FROM t1 WHERE b LIKE 'a%' }
-} {101 0 100}
+} {102 0 100}
 do_test analyze3-2.5 {
   sf_execsql { SELECT count(*) FROM t1 WHERE b LIKE '%a' }
 } {999 999 100}
 
-do_test analyze3-2.4 {
+do_test analyze3-2.6 {
   set like "a%"
   sf_execsql { SELECT count(*) FROM t1 WHERE b LIKE $like }
-} {101 0 100}
-do_test analyze3-2.5 {
+} {102 0 100}
+do_test analyze3-2.7 {
   set like "%a"
   sf_execsql { SELECT count(*) FROM t1 WHERE b LIKE $like }
 } {999 999 100}
-do_test analyze3-2.6 {
+do_test analyze3-2.8 {
   set like "a"
   sf_execsql { SELECT count(*) FROM t1 WHERE b LIKE $like }
-} {101 0 0}
-do_test analyze3-2.7 {
+} {102 0 0}
+do_test analyze3-2.9 {
   set like "ab"
   sf_execsql { SELECT count(*) FROM t1 WHERE b LIKE $like }
-} {11 0 0}
-do_test analyze3-2.8 {
+} {12 0 0}
+do_test analyze3-2.10 {
   set like "abc"
   sf_execsql { SELECT count(*) FROM t1 WHERE b LIKE $like }
-} {2 0 1}
-do_test analyze3-2.9 {
+} {3 0 1}
+do_test analyze3-2.11 {
   set like "a_c"
   sf_execsql { SELECT count(*) FROM t1 WHERE b LIKE $like }
-} {101 0 10}
+} {102 0 10}
 
 
 #-------------------------------------------------------------------------
diff --git a/test/analyze9.test b/test/analyze9.test
index 8572cbea00..1ebd69c8d1 100644
--- a/test/analyze9.test
+++ b/test/analyze9.test
@@ -1134,4 +1134,116 @@ ifcapable stat4&&cte {
   }
 }
 
+#-------------------------------------------------------------------------
+# Check that a problem in they way stat4 data is used has been 
+# resolved (see below).
+#
+reset_db
+do_test 26.1.1 {
+  db transaction {
+    execsql { 
+      CREATE TABLE t1(x, y, z);
+      CREATE INDEX t1xy ON t1(x, y);
+      CREATE INDEX t1z ON t1(z);
+    }
+    for {set i 0} {$i < 10000} {incr i} {
+      execsql { INSERT INTO t1(x, y) VALUES($i, $i) }
+    }
+    for {set i 0} {$i < 10} {incr i} {
+      execsql {
+        WITH cnt(x) AS (SELECT 1 UNION ALL SELECT x+1 FROM cnt WHERE x<100)
+        INSERT INTO t1(x, y) SELECT 10000+$i, x FROM cnt;
+        INSERT INTO t1(x, y) SELECT 10000+$i, 100;
+      }
+    }
+    execsql {
+      UPDATE t1 SET z = rowid / 20;
+      ANALYZE;
+    }
+  }
+} {}
+
+do_execsql_test 26.1.2 {
+  SELECT count(*) FROM t1 WHERE x = 10000 AND y < 50;
+} {49}
+do_execsql_test 26.1.3 {
+  SELECT count(*) FROM t1 WHERE z = 444;
+} {20}
+
+# The analyzer knows that any (z=?) expression matches 20 rows. So it
+# will use index "t1z" if the estimate of hits for (x=10000 AND y<50)
+# is greater than 20 rows.
+#
+# And it should be. The analyzer has a stat4 sample as follows:
+#
+#   sample=(x=10000, y=100) nLt=(10000 10099)
+#
+# There should be no other samples that start with (x=10000). So it knows 
+# that (x=10000 AND y<50) must match somewhere between 0 and 99 rows, but
+# know more than that. Guessing less than 20 is therefore unreasonable.
+#
+# At one point though, due to a problem in whereKeyStats(), the planner was
+# estimating that (x=10000 AND y<50) would match only 2 rows.
+#
+do_eqp_test 26.1.4 {
+  SELECT * FROM t1 WHERE x = 10000 AND y < 50 AND z = 444;
+} {
+  0 0 0 {SEARCH TABLE t1 USING INDEX t1z (z=?)}
+}
+
+
+# This test - 26.2.* - tests that another manifestation of the same problem
+# is no longer present in the library. Assuming:
+# 
+#   CREATE INDEX t1xy ON t1(x, y)
+#
+# and that have samples for index t1xy as follows:
+#
+#
+#   sample=('A', 70)        nEq=(100, 2)        nLt=(900, 970)
+#   sample=('B', 70)        nEq=(100, 2)        nLt=(1000, 1070)    
+#
+# the planner should estimate that (x = 'B' AND y > 25) matches 76 rows
+# (70 * 2/3 + 30). Before, due to the problem, the planner was estimating 
+# that this matched 100 rows.
+# 
+reset_db
+do_execsql_test 26.2.1 {
+  BEGIN;
+    CREATE TABLE t1(x, y, z);
+    CREATE INDEX i1 ON t1(x, y);
+    CREATE INDEX i2 ON t1(z);
+  
+    WITH 
+    cnt(y) AS (SELECT 0 UNION ALL SELECT y+1 FROM cnt WHERE y<99),
+    letters(x) AS (
+      SELECT 'A' UNION SELECT 'B' UNION SELECT 'C' UNION SELECT 'D'
+    )
+    INSERT INTO t1(x, y) SELECT x, y FROM letters, cnt;
+  
+    WITH
+    letters(x) AS (
+      SELECT 'A' UNION SELECT 'B' UNION SELECT 'C' UNION SELECT 'D'
+    )
+    INSERT INTO t1(x, y) SELECT x, 70 FROM letters;
+  
+    WITH
+    cnt(i) AS (SELECT 0 UNION ALL SELECT i+1 FROM cnt WHERE i<9999)
+    INSERT INTO t1(x, y) SELECT i, i FROM cnt;
+  
+    UPDATE t1 SET z = (rowid / 95);
+    ANALYZE;
+  COMMIT;
+}
+
+do_eqp_test 26.2.2 {
+  SELECT * FROM t1 WHERE x='B' AND y>25 AND z=?;
+} {
+  0 0 0 {SEARCH TABLE t1 USING INDEX i1 (x=? AND y>?)}
+}
+
+
 finish_test
+
+
+
diff --git a/test/analyzeF.test b/test/analyzeF.test
new file mode 100644
index 0000000000..670d178a81
--- /dev/null
+++ b/test/analyzeF.test
@@ -0,0 +1,127 @@
+# 2015-03-12
+#
+# 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.
+#
+#***********************************************************************
+# Test that deterministic scalar functions passed constant arguments
+# are used with stat4 data.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix analyzeF
+
+ifcapable {!stat4} {
+  finish_test
+  return
+}
+
+proc isqrt {i} { expr { int(sqrt($i)) } }
+db func isqrt isqrt
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(x INTEGER, y INTEGER);
+  WITH data(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM data
+  )
+  INSERT INTO t1 SELECT isqrt(i), isqrt(i) FROM data LIMIT 400;
+  CREATE INDEX t1x ON t1(x);
+  CREATE INDEX t1y ON t1(y);
+  ANALYZE;
+}
+
+proc str {a} { return $a }
+db func str str
+
+# Note: tests 7 to 12 might be unstable - as they assume SQLite will
+# prefer the expression to the right of the AND clause. Which of
+# course could change.
+#
+# Note 2: tests 9 and 10 depend on the tcl interface creating functions
+# without the SQLITE_DETERMINISTIC flag set.
+#
+foreach {tn where idx} {
+  1 "x = 4 AND y = 19"     {t1x (x=?)}
+  2 "x = 19 AND y = 4"     {t1y (y=?)}
+  3 "x = '4' AND y = '19'" {t1x (x=?)}
+  4 "x = '19' AND y = '4'" {t1y (y=?)}
+  5 "x = substr('5195', 2, 2) AND y = substr('145', 2, 1)" {t1y (y=?)}
+  6 "x = substr('145', 2, 1) AND y = substr('5195', 2, 2)" {t1x (x=?)}
+
+  7  "x = substr('5195', 2, 2+0) AND y = substr('145', 2, 1+0)" {t1y (y=?)}
+  8  "x = substr('145', 2, 1+0) AND y = substr('5195', 2, 2+0)" {t1y (y=?)}
+
+  9  "x = str('19') AND y = str('4')" {t1y (y=?)}
+  10 "x = str('4') AND y = str('19')" {t1y (y=?)}
+
+  11 "x = nullif('19', 0) AND y = nullif('4', 0)" {t1y (y=?)}
+  12 "x = nullif('4', 0) AND y = nullif('19', 0)" {t1y (y=?)}
+} {
+  set res "0 0 0 {SEARCH TABLE t1 USING INDEX $idx}"
+  do_eqp_test 1.$tn "SELECT * FROM t1 WHERE $where" $res
+}
+
+# Test that functions that do not exist - "func()" - do not cause an error.
+#
+do_catchsql_test 2.1 {
+  SELECT * FROM t1 WHERE x = substr('145', 2, 1) AND y = func(1, 2, 3)
+} {1 {no such function: func}}
+do_catchsql_test 2.2 {
+  UPDATE t1 SET y=y+1 WHERE x = substr('145', 2, 1) AND y = func(1, 2, 3)
+} {1 {no such function: func}}
+
+
+# Check that functions that accept zero arguments do not cause problems.
+#
+proc ret {x} { return $x }
+
+db func det4 -deterministic [list ret 4]
+db func nondet4 [list ret 4]
+db func det19 -deterministic [list ret 19]
+db func nondet19 [list ret 19]
+
+foreach {tn where idx} {
+  1 "x = det4() AND y = det19()"     {t1x (x=?)}
+  2 "x = det19() AND y = det4()"     {t1y (y=?)}
+
+  3 "x = nondet4() AND y = nondet19()"     {t1y (y=?)}
+  4 "x = nondet19() AND y = nondet4()"     {t1y (y=?)}
+} {
+  set res "0 0 0 {SEARCH TABLE t1 USING INDEX $idx}"
+  do_eqp_test 3.$tn "SELECT * FROM t1 WHERE $where" $res
+}
+
+
+execsql { DELETE FROM t1 }
+
+proc throw_error {err} { error $err }
+db func error -deterministic throw_error
+do_catchsql_test 4.1 {
+  SELECT * FROM t1 WHERE x = error('error one') AND y = 4;
+} {1 {error one}}
+
+do_catchsql_test 4.2 {
+  SELECT * FROM t1 WHERE x = zeroblob(2000000000) AND y = 4;
+} {1 {string or blob too big}}
+
+sqlite3_limit db SQLITE_LIMIT_LENGTH 1000000
+proc dstr {} { return [string repeat x 1100000] }
+db func dstr -deterministic dstr
+do_catchsql_test 4.3 {
+  SELECT * FROM t1 WHERE x = dstr() AND y = 11;
+} {1 {string or blob too big}}
+
+do_catchsql_test 4.4 {
+  SELECT * FROM t1 WHERE x = test_zeroblob(1100000) AND y = 4;
+} {1 {string or blob too big}}
+
+
+finish_test
+
+
+
diff --git a/test/autoindex1.test b/test/autoindex1.test
index bcde5bc2e7..c5ce42c1d4 100644
--- a/test/autoindex1.test
+++ b/test/autoindex1.test
@@ -11,6 +11,9 @@
 # This file implements regression tests for SQLite library.  The
 # focus of this script is testing automatic index creation logic.
 #
+# EVIDENCE-OF: R-34271-33106 PRAGMA automatic_index; PRAGMA
+# automatic_index = boolean; Query, set, or clear the automatic indexing
+# capability.
 
 set testdir [file dirname $argv0]
 source $testdir/tester.tcl
diff --git a/test/autoindex4.test b/test/autoindex4.test
index 6d0865bf72..0e7a80df21 100644
--- a/test/autoindex4.test
+++ b/test/autoindex4.test
@@ -49,4 +49,35 @@ do_execsql_test autoindex4-2.0 {
    ORDER BY rowid;
 } {1 123 654 | 0 555 444 | 4 234 987 |}
 
+# Ticket [2326c258d02ead33d]
+# Two joins, one with and the other without an ORDER BY clause.
+# The one without ORDER BY correctly returns two rows of result.
+# The one with ORDER BY returns no rows. 
+#
+do_execsql_test autoindex4-3.0 {
+  CREATE TABLE A(Name text);
+  CREATE TABLE Items(ItemName text , Name text);
+  INSERT INTO Items VALUES('Item1','Parent');
+  INSERT INTO Items VALUES('Item2','Parent');
+  CREATE TABLE B(Name text);
+  
+  SELECT Items.ItemName
+    FROM Items
+      LEFT JOIN A ON (A.Name = Items.ItemName and Items.ItemName = 'dummy')
+      LEFT JOIN B ON (B.Name = Items.ItemName)
+    WHERE Items.Name = 'Parent'
+    ORDER BY Items.ItemName;
+} {Item1 Item2}
+do_execsql_test autoindex4-3.1 {
+  CREATE INDEX Items_x1 ON Items(ItemName,Name) WHERE ItemName = 'dummy';
+  
+  SELECT Items.ItemName
+    FROM Items
+      LEFT JOIN A ON (A.Name = Items.ItemName and Items.ItemName = 'dummy')
+      LEFT JOIN B ON (B.Name = Items.ItemName)
+    WHERE Items.Name = 'Parent'
+    ORDER BY Items.ItemName;
+} {Item1 Item2}
+
+
 finish_test
diff --git a/test/capi3.test b/test/capi3.test
index 9f3d6f6916..163bb19ada 100644
--- a/test/capi3.test
+++ b/test/capi3.test
@@ -452,9 +452,21 @@ proc check_data {STMT test types ints doubles strings} {
 # types
 do_test $test.1 {
   set types [list]
-  foreach i $idxlist {lappend types [sqlite3_column_type $STMT $i]}
+  foreach i $idxlist {
+    set x [sqlite3_column_type $STMT $i]
+    # EVIDENCE-OF: R-12793-43283 Every value in SQLite has one of five
+    # fundamental datatypes: 64-bit signed integer 64-bit IEEE floating
+    # point number string BLOB NULL
+    if {[lsearch {INTEGER FLOAT TEXT BLOB NULL} $x]<0} {
+      set types ERROR
+      break
+    } else {
+      lappend types $x
+    }
+  }
   set types
 } $types
+ 
 
 # Integers
 do_test $test.2 {
diff --git a/test/collate1.test b/test/collate1.test
index 20854157d3..0716ac743f 100644
--- a/test/collate1.test
+++ b/test/collate1.test
@@ -10,12 +10,12 @@
 #
 #***********************************************************************
 # This file implements regression tests for SQLite library.  The
-# focus of this script is page cache subsystem.
+# focus of this script is testing collation sequences.
 #
-# $Id: collate1.test,v 1.5 2007/02/01 23:02:46 drh Exp $
 
 set testdir [file dirname $argv0]
 source $testdir/tester.tcl
+set testprefix collate1
 
 #
 # Tests are roughly organised as follows:
@@ -333,4 +333,58 @@ do_test collate1-5.3 {
   }
 } {1 2}
 
+
+
+#-------------------------------------------------------------------------
+# Fix problems with handling collation sequences named '"""'.
+#
+do_execsql_test 6.1 {
+  SELECT """""""";
+} {\"\"\"}
+
+do_catchsql_test 6.2 {
+  CREATE TABLE x1(a);
+  SELECT a FROM x1 ORDER BY a COLLATE """""""";
+} {1 {no such collation sequence: """}}
+
+do_catchsql_test 6.3 {
+  SELECT a FROM x1 ORDER BY 1 COLLATE """""""";
+} {1 {no such collation sequence: """}}
+
+do_catchsql_test 6.4 {
+  SELECT 0 UNION SELECT 0 ORDER BY 1 COLLATE """""""";
+} {1 {no such collation sequence: """}}
+
+db collate {"""} [list string compare -nocase]
+
+do_execsql_test 6.5 {
+  PRAGMA foreign_keys = ON;
+  CREATE TABLE p1(a PRIMARY KEY COLLATE '"""');
+  CREATE TABLE c1(x, y REFERENCES p1);
+} {}
+
+do_execsql_test 6.6 { 
+  INSERT INTO p1 VALUES('abc'); 
+  INSERT INTO c1 VALUES(1, 'ABC'); 
+}
+
+ifcapable foreignkey {
+  do_catchsql_test 6.7 { 
+    DELETE FROM p1 WHERE rowid = 1 
+  } {1 {FOREIGN KEY constraint failed}}
+}
+
+do_execsql_test 6.8 { 
+  INSERT INTO p1 VALUES('abb');
+  INSERT INTO p1 VALUES('wxz');
+  INSERT INTO p1 VALUES('wxy');
+
+  INSERT INTO c1 VALUES(2, 'abb');
+  INSERT INTO c1 VALUES(3, 'wxz');
+  INSERT INTO c1 VALUES(4, 'WXY');
+  SELECT x, y FROM c1 ORDER BY y COLLATE """""""";
+} {2 abb 1 ABC 4 WXY 3 wxz}
+
 finish_test
+
+
diff --git a/test/collate8.test b/test/collate8.test
index 60a89162dd..b06c87d2f8 100644
--- a/test/collate8.test
+++ b/test/collate8.test
@@ -13,7 +13,9 @@
 # focus of this script is making sure collations pass through the
 # unary + operator.
 #
-# $Id: collate8.test,v 1.2 2008/08/25 12:14:09 drh Exp $
+# 2015-02-09:  Added tests to make sure COLLATE passes through function
+# calls.  Ticket [ca0d20b6cdddec5e81b8d66f89c46a5583b5f6f6].
+#
 
 set testdir [file dirname $argv0]
 source $testdir/tester.tcl
@@ -122,4 +124,34 @@ do_test collate8-2.8 {
   }
 } {abc}
 
+# Make sure the COLLATE operator perculates up through function calls
+# and other Expr structures that use the Expr.x.pList field.
+#
+do_execsql_test collate8-3.1 {
+  SELECT 'abc'==('ABC'||'') COLLATE nocase;
+  SELECT 'abc'==('ABC'||'' COLLATE nocase);
+  SELECT 'abc'==('ABC'||('' COLLATE nocase));
+  SELECT 'abc'==('ABC'||upper('' COLLATE nocase));
+} {1 1 1 1}
+do_execsql_test collate8-3.2 {
+  SELECT 'abc'==('ABC'||max('' COLLATE nocase,'' COLLATE binary));
+} {1}
+
+# The COLLATE binary is on the left and so takes precedence
+do_execsql_test collate8-3.3 {
+  SELECT 'abc'==('ABC'||max('' COLLATE binary,'' COLLATE nocase));
+} {0}
+
+do_execsql_test collate8-3.4 {
+  SELECT 'abc'==('ABC'||CASE WHEN 1-1=2 THEN '' COLLATE nocase
+                                        ELSE '' COLLATE binary END);
+  SELECT 'abc'==('ABC'||CASE WHEN 1+1=2 THEN '' COLLATE nocase
+                                        ELSE '' COLLATE binary END);
+} {1 1}
+do_execsql_test collate8-3.5 {
+  SELECT 'abc'==('ABC'||CASE WHEN 1=2 THEN '' COLLATE binary
+                                      ELSE '' COLLATE nocase END);
+} {0}
+
+
 finish_test
diff --git a/test/crashM.test b/test/crashM.test
new file mode 100644
index 0000000000..de10c4589a
--- /dev/null
+++ b/test/crashM.test
@@ -0,0 +1,80 @@
+# 2015 Mar 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.
+#
+#***********************************************************************
+#
+# Crash tests for the multiplex module with 8.3 filenames enabled.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix crashM
+
+ifcapable !crashtest||!8_3_names {
+  finish_test
+  return
+}
+
+db close
+sqlite3_shutdown
+sqlite3_config_uri 1
+
+foreach f [glob -nocomplain test1.* test2.*] { forcedelete $f }
+sqlite3_multiplex_initialize "" 1
+sqlite3 db file:test1.db?8_3_names=1
+sqlite3_multiplex_control db main chunk_size [expr 64*1024]
+
+do_execsql_test 1.0 {
+  ATTACH 'file:test2.db?8_3_names=1' AS aux;
+
+  CREATE TABLE t1(x, y);
+  CREATE INDEX t1x ON t1(x);
+  CREATE INDEX t1y ON t1(y);
+
+  CREATE TABLE aux.t2(x, y);
+  CREATE INDEX aux.t2x ON t2(x);
+  CREATE INDEX aux.t2y ON t2(y);
+
+  WITH s(a) AS (
+    SELECT 1 UNION ALL SELECT a+1 FROM s WHERE a<1000
+  )
+  INSERT INTO t1 SELECT a, randomblob(500) FROM s;
+
+  WITH s(a) AS (
+    SELECT 1 UNION ALL SELECT a+1 FROM s WHERE a<1000
+  )
+  INSERT INTO t2 SELECT a, randomblob(500) FROM s;
+} {}
+
+for {set i 0} {$i < 20} {incr i} {
+  do_test 2.$i.1 {
+    crashsql -delay 1 -file test1.db -opendb {
+      sqlite3_shutdown
+      sqlite3_config_uri 1
+      sqlite3_multiplex_initialize crash 1
+      sqlite3 db file:test1.db?8_3_names=1
+      sqlite3_multiplex_control db main chunk_size [expr 64*1024]
+    } {
+      ATTACH 'file:test2.db?8_3_names=1' AS aux;
+      BEGIN;
+        UPDATE t1 SET y = randomblob(500) WHERE (x%10)==0;
+        UPDATE t2 SET y = randomblob(500) WHERE (x%10)==0;
+      COMMIT;
+    }
+  } {1 {child process exited abnormally}}
+
+  do_execsql_test 2.$i.2 {
+    PRAGMA main.integrity_check;
+    PRAGMA aux.integrity_check;
+  } {ok ok}
+}
+
+catch { db close }
+sqlite3_multiplex_shutdown
+finish_test
diff --git a/test/e_insert.test b/test/e_insert.test
index 0ea4b76bb5..ffafa0ea52 100644
--- a/test/e_insert.test
+++ b/test/e_insert.test
@@ -348,9 +348,9 @@ do_insert_tests e_insert-3.2 {
     6.2    "SELECT * FROM a1"                  {{} {} {} {}}
 }
 
-# EVIDENCE-OF: R-46928-50290 The optional conflict-clause allows the
-# specification of an alternative constraint conflict resolution
-# algorithm to use during this one INSERT command.
+# EVIDENCE-OF: R-03235-45250 The "REPLACE" and "INSERT OR action" forms
+# specify an alternative constraint conflict resolution algorithm to use
+# during this one INSERT command.
 #
 # EVIDENCE-OF: R-23110-47146 the parser allows the use of the single
 # keyword REPLACE as an alias for "INSERT OR REPLACE".
diff --git a/test/e_wal.test b/test/e_wal.test
index a5e074f49b..77ac83a0ae 100644
--- a/test/e_wal.test
+++ b/test/e_wal.test
@@ -200,10 +200,11 @@ do_test 3.4.2 {
 db close
 
 
-# EVIDENCE-OF: R-22428-28959 To prevent older versions of SQLite from
-# trying to recover a WAL-mode database (and making matters worse) the
-# database file format version numbers (bytes 18 and 19 in the database
-# header) are increased from 1 to 2 in WAL mode.
+# EVIDENCE-OF: R-45540-25505 To prevent older versions of SQLite (prior
+# to version 3.7.0, 2010-07-22) from trying to recover a WAL-mode
+# database (and making matters worse) the database file format version
+# numbers (bytes 18 and 19 in the database header) are increased from 1
+# to 2 in WAL mode.
 #
 reset_db
 do_execsql_test 4.1.1 { CREATE TABLE t1(x, y) }
diff --git a/test/fkey5.test b/test/fkey5.test
index dc866cbdb8..21feb2bb8b 100644
--- a/test/fkey5.test
+++ b/test/fkey5.test
@@ -12,8 +12,13 @@
 #
 # This file tests the PRAGMA foreign_key_check command.
 #
-# EVIDENCE-OF: R-05426-18119 PRAGMA foreign_key_check; PRAGMA
-# foreign_key_check(table-name);
+# EVIDENCE-OF: R-01427-50262 PRAGMA database.foreign_key_check; PRAGMA
+# database.foreign_key_check(table-name);
+#
+# EVIDENCE-OF: R-23918-17301 The foreign_key_check pragma checks the
+# database, or the table called "table-name", for foreign key
+# constraints that are violated and returns one row of output for each
+# violation.
 
 set testdir [file dirname $argv0]
 source $testdir/tester.tcl
@@ -74,6 +79,16 @@ do_test fkey5-1.2 {
     PRAGMA foreign_key_check;
   }
 } {c1 87 p1 0 c1 90 p1 0}
+do_test fkey5-1.2b {
+  db eval {
+    PRAGMA main.foreign_key_check;
+  }
+} {c1 87 p1 0 c1 90 p1 0}
+do_test fkey5-1.2c {
+  db eval {
+    PRAGMA temp.foreign_key_check;
+  }
+} {}
 do_test fkey5-1.3 {
   db eval {
     PRAGMA foreign_key_check(c1);
@@ -84,6 +99,16 @@ do_test fkey5-1.4 {
     PRAGMA foreign_key_check(c2);
   }
 } {}
+do_test fkey5-1.5 {
+  db eval {
+    PRAGMA main.foreign_key_check(c2);
+  }
+} {}
+do_test fkey5-1.6 {
+  catchsql {
+    PRAGMA temp.foreign_key_check(c2);
+  }
+} {1 {no such table: temp.c2}}
 
 # EVIDENCE-OF: R-45728-08709 There are four columns in each result row.
 #
diff --git a/test/fts3atoken.test b/test/fts3atoken.test
index b7722c7d04..904a9a3fc3 100644
--- a/test/fts3atoken.test
+++ b/test/fts3atoken.test
@@ -186,10 +186,22 @@ ifcapable icu {
   } {}
 }
 
-
 do_test fts3token-internal {
   execsql { SELECT fts3_tokenizer_internal_test() }
 } {ok}
 
+#-------------------------------------------------------------------------
+# Test empty tokenizer names.
+#
+do_catchsql_test 6.1.1 {
+  CREATE VIRTUAL TABLE t3 USING fts4(tokenize="");
+} {1 {unknown tokenizer: }}
+do_catchsql_test 6.1.2 {
+  CREATE VIRTUAL TABLE t3 USING fts4(tokenize=);
+} {1 {unknown tokenizer: }}
+do_catchsql_test 6.1.3 {
+  CREATE VIRTUAL TABLE t3 USING fts4(tokenize="   ");
+} {1 {unknown tokenizer:    }}
+
 
 finish_test
diff --git a/test/fts3prefix.test b/test/fts3prefix.test
index e7c197da9d..8ffabe8d65 100644
--- a/test/fts3prefix.test
+++ b/test/fts3prefix.test
@@ -209,5 +209,69 @@ do_catchsql_test 5.1 {
 do_catchsql_test 5.2 {
   CREATE VIRTUAL TABLE t4 USING fts4(prefix="");
 } {0 {}}
+do_catchsql_test 5.3 {
+  CREATE VIRTUAL TABLE t5 USING fts4(prefix="-1");
+} {1 {error parsing prefix parameter: -1}}
+
+#-------------------------------------------------------------------------
+# Prefix indexes of size 0 are ignored. Demonstrate this by showing that
+# adding prefix=0 does not change the contents of the %_segdir table.
+#
+reset_db
+do_execsql_test 6.1.1 {
+  CREATE VIRTUAL TABLE t1 USING fts4(prefix=0);
+  CREATE VIRTUAL TABLE t2 USING fts4;
+  INSERT INTO t1 VALUES('Twas Mulga Bill, from Eaglehawk, ');
+  INSERT INTO t2 VALUES('Twas Mulga Bill, from Eaglehawk, ');
+} {}
+do_execsql_test 6.1.2 {
+  SELECT md5sum(quote(root)) FROM t1_segdir;
+} [db eval {SELECT md5sum(quote(root)) FROM t2_segdir}]
+
+reset_db
+do_execsql_test 6.2.1 {
+  CREATE VIRTUAL TABLE t1 USING fts4(prefix="1,0,2");
+  CREATE VIRTUAL TABLE t2 USING fts4(prefix="1,2");
+  INSERT INTO t1 VALUES('that caught the cycling craze;');
+  INSERT INTO t2 VALUES('that caught the cycling craze;');
+} {}
+do_execsql_test 6.2.2 {
+  SELECT md5sum(quote(root)) FROM t1_segdir;
+} [db eval {SELECT md5sum(quote(root)) FROM t2_segdir}]
+
+reset_db
+do_execsql_test 6.3.1 {
+  CREATE VIRTUAL TABLE t1 USING fts4(prefix="1,3,2");
+  CREATE VIRTUAL TABLE t2 USING fts4(prefix="1,2");
+  INSERT INTO t1 VALUES('He turned away the good old horse');
+  INSERT INTO t2 VALUES('He turned away the good old horse');
+} {}
+do_test 6.3.2 {
+  set one [db eval {SELECT md5sum(quote(root)) FROM t1_segdir}]
+  set two [db eval {SELECT md5sum(quote(root)) FROM t2_segdir}]
+  expr {$one == $two}
+} 0
+
+reset_db
+do_execsql_test 6.4.1 {
+  CREATE VIRTUAL TABLE t1 USING fts4(prefix="1,600,2");
+  CREATE VIRTUAL TABLE t2 USING fts4(prefix="1,2");
+  INSERT INTO t1 VALUES('that served him many days;');
+  INSERT INTO t2 VALUES('that served him many days;');
+} {}
+do_execsql_test 6.4.2 {
+  SELECT md5sum(quote(root)) FROM t1_segdir;
+} [db eval {SELECT md5sum(quote(root)) FROM t2_segdir}]
+
+reset_db
+do_execsql_test 6.5.1 {
+  CREATE VIRTUAL TABLE t1 USING fts4(prefix="2147483647,2147483648,2147483649");
+  CREATE VIRTUAL TABLE t2 USING fts4(prefix=);
+  INSERT INTO t1 VALUES('He dressed himself in cycling clothes');
+  INSERT INTO t2 VALUES('He dressed himself in cycling clothes');
+} {}
+do_execsql_test 6.5.2 {
+  SELECT md5sum(quote(root)) FROM t1_segdir;
+} [db eval {SELECT md5sum(quote(root)) FROM t2_segdir}]
 
 finish_test
diff --git a/test/fts3query.test b/test/fts3query.test
index 0b3c2ce1bd..06019d14e6 100644
--- a/test/fts3query.test
+++ b/test/fts3query.test
@@ -252,15 +252,21 @@ foreach {tn iFirst iLast} [subst {
   do_execsql_test 7.2.$tn.1.[llength $res] {
     SELECT rowid FROM ft4 WHERE rowid BETWEEN $iFirst AND $iLast
   } $res
+  set res [db eval { 
+    SELECT rowid FROM t4 WHERE rowid BETWEEN $iFirst AND $iLast 
+     ORDER BY +rowid DESC
+  } ]
   do_execsql_test 7.2.$tn.2.[llength $res] {
     SELECT rowid FROM ft4 WHERE rowid BETWEEN $iFirst AND $iLast
     ORDER BY rowid DESC
-  } [lsort -decr -integer $res]
+  } $res
 }
 
 foreach ii [db eval {SELECT rowid FROM t4}] {
   set res1 [db eval {SELECT rowid FROM t4 WHERE rowid > $ii}]
   set res2 [db eval {SELECT rowid FROM t4 WHERE rowid < $ii}]
+  set res1s [db eval {SELECT rowid FROM t4 WHERE rowid > $ii ORDER BY +rowid DESC}]
+  set res2s [db eval {SELECT rowid FROM t4 WHERE rowid < $ii ORDER BY +rowid DESC}]
 
   do_execsql_test 7.3.$ii.1 {
     SELECT rowid FROM ft4 WHERE rowid > $ii
@@ -272,13 +278,11 @@ foreach ii [db eval {SELECT rowid FROM t4}] {
 
   do_execsql_test 7.3.$ii.3 {
     SELECT rowid FROM ft4 WHERE rowid > $ii ORDER BY rowid DESC
-  } [lsort -integer -decr $res1]
+  } $res1s
 
   do_execsql_test 7.3.$ii.4 {
     SELECT rowid FROM ft4 WHERE rowid < $ii ORDER BY rowid DESC
-  } [lsort -integer -decr $res2]
+  } $res2s
 }
 
 finish_test
-
-
diff --git a/test/incrblob2.test b/test/incrblob2.test
index a8f40f09dc..b6c75cd6c7 100644
--- a/test/incrblob2.test
+++ b/test/incrblob2.test
@@ -324,12 +324,44 @@ do_test incrblob2-6.2 {
   sqlite3_blob_read $rdHandle 0 2
 } {AB}
 
+if {$::tcl_platform(pointerSize)>=8} {
+  do_test incrblob2-6.2b {
+    set rc [catch {
+      # Prior to 2015-02-07, the following caused a segfault due to
+      # integer overflow.
+      sqlite3_blob_read $rdHandle 2147483647 2147483647
+    } errmsg]
+    lappend rc $errmsg
+  } {1 SQLITE_ERROR}
+}
+do_test incrblob2-6.2c {
+  set rc [catch {
+    # Prior to 2015-02-07, the following caused a segfault due to
+    # integer overflow.
+    sqlite3_blob_read $rdHandle 2147483647 100
+  } errmsg]
+  lappend rc $errmsg
+} {1 SQLITE_ERROR}
+
 do_test incrblob2-6.3 {
   set wrHandle [db incrblob t1 data 1]
   sqlite3_blob_write $wrHandle 0 ZZZZZZZZZZ
   sqlite3_blob_read $rdHandle 2 4
 } {ZZZZ}
 
+do_test incrblob2-6.3b {
+  set rc [catch {
+    # Prior to 2015-02-07, the following caused a segfault due to
+    # integer overflow.
+    sqlite3_blob_write $wrHandle 2147483647 YYYYYYYYYYYYYYYYYY
+  } errmsg]
+  lappend rc $errmsg
+} {1 SQLITE_ERROR}
+do_test incrblob2-6.3c {
+  sqlite3_blob_read $rdHandle 2 4
+} {ZZZZ}
+
+
 do_test incrblob2-6.4 {
   close $wrHandle
   close $rdHandle
diff --git a/test/incrcorrupt.test b/test/incrcorrupt.test
new file mode 100644
index 0000000000..eda65e4035
--- /dev/null
+++ b/test/incrcorrupt.test
@@ -0,0 +1,127 @@
+# 2001 October 12
+#
+# 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.
+#
+#***********************************************************************
+# Test that "PRAGMA incremental_vacuum" detects and reports database
+# corruption properly. And that "PRAGMA auto_vacuum = INCREMENTAL"
+# does as well.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix incrcorrupt
+
+# If this build of the library does not support auto-vacuum, omit this
+# whole file.
+ifcapable {!autovacuum} {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  PRAGMA auto_vacuum = 2;
+  CREATE TABLE t1(a PRIMARY KEY, b);
+
+  WITH data(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM data
+  )
+  INSERT INTO t1 SELECT i, randomblob(600) FROM data LIMIT 20;
+  PRAGMA page_count;
+} {24}
+
+do_execsql_test 1.1 {
+  PRAGMA incremental_vacuum;
+} {}
+
+do_test 1.2 {
+  db_save
+  hexio_write test.db 36 00000019
+  catchsql { PRAGMA incremental_vacuum; }
+} {1 {database disk image is malformed}}
+
+do_test 1.3 {
+  set stmt [sqlite3_prepare_v2 db "PRAGMA incremental_vacuum" -1 dummy]
+  sqlite3_step $stmt
+} {SQLITE_CORRUPT}
+do_test 1.4 { sqlite3_errcode db } {SQLITE_CORRUPT}
+do_test 1.5 { sqlite3_errmsg db } {database disk image is malformed}
+do_test 1.6 { sqlite3_finalize $stmt } {SQLITE_CORRUPT}
+do_test 1.7 { sqlite3_errcode db } {SQLITE_CORRUPT}
+do_test 1.8 { sqlite3_errmsg db } {database disk image is malformed}
+
+do_test 1.9 {
+  set stmt [sqlite3_prepare_v2 db "PRAGMA incremental_vacuum" -1 dummy]
+  sqlite3_step $stmt
+} {SQLITE_CORRUPT}
+do_test 1.10 { sqlite3_errcode db } {SQLITE_CORRUPT}
+do_test 1.11 { sqlite3_errmsg db } {database disk image is malformed}
+
+do_test 1.12 {
+  set stmt2 [sqlite3_prepare_v2 db "SELECT 1" -1 dummy]
+  sqlite3_finalize $stmt2
+} {SQLITE_OK}
+do_test 1.13 { sqlite3_errcode db } {SQLITE_OK}
+do_test 1.14 { sqlite3_errmsg db } {not an error}
+
+do_test 1.15 { sqlite3_finalize $stmt } {SQLITE_CORRUPT}
+do_test 1.16 { sqlite3_errcode db } {SQLITE_CORRUPT}
+do_test 1.17 { sqlite3_errmsg db } {database disk image is malformed}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+
+do_execsql_test 2.1 {
+  PRAGMA auto_vacuum = 1;
+  CREATE TABLE t1(a PRIMARY KEY, b);
+  WITH data(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM data
+  )
+  INSERT INTO t1 SELECT i, randomblob(600) FROM data LIMIT 20;
+  PRAGMA page_count;
+} {24}
+
+do_test 2.2 {
+  db_save
+  set fd [open test.db r+]
+  chan truncate $fd [expr 22*1024]
+  close $fd
+  catchsql { PRAGMA incremental_vacuum; }
+} {1 {database disk image is malformed}}
+
+do_test 2.3 {
+  set stmt [sqlite3_prepare_v2 db "PRAGMA auto_vacuum = INCREMENTAL" -1 dummy]
+  sqlite3_step $stmt
+} {SQLITE_CORRUPT}
+do_test 2.4 { sqlite3_errcode db } {SQLITE_CORRUPT}
+do_test 2.5 { sqlite3_errmsg db } {database disk image is malformed}
+do_test 2.6 { sqlite3_finalize $stmt } {SQLITE_CORRUPT}
+do_test 2.7 { sqlite3_errcode db } {SQLITE_CORRUPT}
+do_test 2.8 { sqlite3_errmsg db } {database disk image is malformed}
+
+do_test 2.9 {
+  set stmt [sqlite3_prepare_v2 db "PRAGMA auto_vacuum = INCREMENTAL" -1 dummy]
+  sqlite3_step $stmt
+} {SQLITE_CORRUPT}
+do_test 2.10 { sqlite3_errcode db } {SQLITE_CORRUPT}
+do_test 2.11 { sqlite3_errmsg db } {database disk image is malformed}
+
+do_test 2.12 {
+  set stmt2 [sqlite3_prepare_v2 db "SELECT 1" -1 dummy]
+  sqlite3_finalize $stmt2
+} {SQLITE_OK}
+do_test 2.13 { sqlite3_errcode db } {SQLITE_OK}
+do_test 2.14 { sqlite3_errmsg db } {not an error}
+
+do_test 2.15 { sqlite3_finalize $stmt } {SQLITE_CORRUPT}
+do_test 2.16 { sqlite3_errcode db } {SQLITE_CORRUPT}
+do_test 2.17 { sqlite3_errmsg db } {database disk image is malformed}
+
+finish_test
+
diff --git a/test/incrvacuum2.test b/test/incrvacuum2.test
index 6e8e1bed5e..2219d54195 100644
--- a/test/incrvacuum2.test
+++ b/test/incrvacuum2.test
@@ -188,8 +188,10 @@ ifcapable wal {
     execsql { 
       PRAGMA journal_mode = WAL;
       PRAGMA incremental_vacuum(1);
-      PRAGMA wal_checkpoint;
     }
+  } {wal}
+  do_test 4.2.1 {
+    execsql { PRAGMA wal_checkpoint }
     file size test.db-wal
   } [expr {32+2*(512+24)}]
 
diff --git a/test/index6.test b/test/index6.test
index 68bdd06c14..69fae49feb 100644
--- a/test/index6.test
+++ b/test/index6.test
@@ -267,5 +267,64 @@ do_execsql_test index6-6.2 {
   PRAGMA integrity_check;
 } {ok}
 
+# Test case for ticket [2326c258d02ead33d69faa63de8f4686b9b1b9d9] on
+# 2015-02-24.  Any use of a partial index qualifying constraint inside
+# the ON clause of a LEFT JOIN was causing incorrect results for all
+# versions of SQLite 3.8.0 through 3.8.8.
+#
+do_execsql_test index6-7.0 {
+  CREATE TABLE t7a(x);
+  CREATE TABLE t7b(y);
+  INSERT INTO t7a(x) VALUES(1);
+  CREATE INDEX t7ax ON t7a(x) WHERE x=99;
+  PRAGMA automatic_index=OFF;
+  SELECT * FROM t7a LEFT JOIN t7b ON (x=99) ORDER BY x;
+} {1 {}}
+do_execsql_test index6-7.1 {
+  INSERT INTO t7b(y) VALUES(2);
+  SELECT * FROM t7a JOIN t7b ON (x=99) ORDER BY x;
+} {}
+do_execsql_test index6-7.2 {
+  INSERT INTO t7a(x) VALUES(99);
+  SELECT * FROM t7a LEFT JOIN t7b ON (x=99) ORDER BY x;
+} {1 {} 99 2}
+do_execsql_test index6-7.3 {
+  SELECT * FROM t7a JOIN t7b ON (x=99) ORDER BY x;
+} {99 2}
+do_execsql_test index6-7.4 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t7a JOIN t7b ON (x=99) ORDER BY x;
+} {/USING COVERING INDEX t7ax/}
+
+
+do_execsql_test index6-8.0 {
+  CREATE TABLE t8a(a,b);
+  CREATE TABLE t8b(x,y);
+  CREATE INDEX i8c ON t8b(y) WHERE x = 'value';
+
+  INSERT INTO t8a VALUES(1, 'one');
+  INSERT INTO t8a VALUES(2, 'two');
+  INSERT INTO t8a VALUES(3, 'three');
+
+  INSERT INTO t8b VALUES('value', 1);
+  INSERT INTO t8b VALUES('dummy', 2);
+  INSERT INTO t8b VALUES('value', 3);
+  INSERT INTO t8b VALUES('dummy', 4);
+} {}
+
+do_eqp_test index6-8.1 {
+  SELECT * FROM t8a LEFT JOIN t8b ON (x = 'value' AND y = a)
+} {
+  0 0 0 {SCAN TABLE t8a} 
+  0 1 1 {SEARCH TABLE t8b USING INDEX i8c (y=?)}
+}
+
+do_execsql_test index6-8.2 {
+  SELECT * FROM t8a LEFT JOIN t8b ON (x = 'value' AND y = a)
+} {
+  1 one value 1 
+  2 two {} {} 
+  3 three value 3
+}
 
 finish_test
diff --git a/test/index7.test b/test/index7.test
index 0f341a3129..9a2444a87e 100644
--- a/test/index7.test
+++ b/test/index7.test
@@ -21,6 +21,31 @@ ifcapable !vtab {
   return
 }
 
+# Capture the output of a pragma in a TEMP table.
+#
+proc capture_pragma {db tabname sql} {
+  $db eval "DROP TABLE IF EXISTS temp.$tabname"
+  set once 1
+  $db eval $sql x {
+    if {$once} {
+      set once 0
+      set ins "INSERT INTO $tabname VALUES"
+      set crtab "CREATE TEMP TABLE $tabname "
+      set sep "("
+      foreach col $x(*) {
+        append ins ${sep}\$x($col)
+        append crtab ${sep}\"$col\"
+        set sep ,
+      }
+      append ins )
+      append crtab )
+      $db eval $crtab
+    }
+    $db eval $ins
+  }
+}
+
+
 load_static_extension db wholenumber;
 do_test index7-1.1 {
   # Able to parse and manage partial indices
@@ -37,6 +62,15 @@ do_test index7-1.1 {
   }
 } {14 20 ok}
 
+# (The "partial" column of the PRAGMA index_list output is...)
+# EVIDENCE-OF: R-34457-09668 "1" if the index is a partial index and "0"
+# if not.
+#
+do_test index7-1.1a {
+  capture_pragma db out {PRAGMA index_list(t1)}
+  db eval {SELECT "name", "partial", '|' FROM out ORDER BY "name"}
+} {sqlite_autoindex_t1_1 0 | t1a 1 | t1b 1 |}
+
 # Make sure the count(*) optimization works correctly with
 # partial indices.  Ticket [a5c8ed66cae16243be6] 2013-10-03.
 #
diff --git a/test/indexedby.test b/test/indexedby.test
index f95c167f64..413bf07422 100644
--- a/test/indexedby.test
+++ b/test/indexedby.test
@@ -1,4 +1,4 @@
-# 2008 October 4
+# 2008-10-04
 #
 # The author disclaims copyright to this source code.  In place of
 # a legal notice, here is a blessing:
@@ -9,7 +9,6 @@
 #
 #***********************************************************************
 #
-# $Id: indexedby.test,v 1.5 2009/03/22 20:36:19 drh Exp $
 
 set testdir [file dirname $argv0]
 source $testdir/tester.tcl
@@ -58,20 +57,45 @@ do_execsql_test indexedby-1.4 {
 # attached to a table in the FROM clause, but not to a sub-select or
 # SQL view. Also test that specifying an index that does not exist or
 # is attached to a different table is detected as an error.
+#
+# EVIDENCE-OF: R-63761-48810 -- syntax diagram qualified-table-name
 # 
+# EVIDENCE-OF: R-58230-57098 The "INDEXED BY index-name" phrase
+# specifies that the named index must be used in order to look up values
+# on the preceding table.
+#
 do_test indexedby-2.1 {
   execsql { SELECT * FROM t1 NOT INDEXED WHERE a = 'one' AND b = 'two'}
 } {}
+do_test indexedby-2.1b {
+  execsql { SELECT * FROM main.t1 NOT INDEXED WHERE a = 'one' AND b = 'two'}
+} {}
 do_test indexedby-2.2 {
   execsql { SELECT * FROM t1 INDEXED BY i1 WHERE a = 'one' AND b = 'two'}
 } {}
+do_test indexedby-2.2b {
+  execsql { SELECT * FROM main.t1 INDEXED BY i1 WHERE a = 'one' AND b = 'two'}
+} {}
 do_test indexedby-2.3 {
   execsql { SELECT * FROM t1 INDEXED BY i2 WHERE a = 'one' AND b = 'two'}
 } {}
-
+# EVIDENCE-OF: R-44699-55558 The INDEXED BY clause does not give the
+# optimizer hints about which index to use; it gives the optimizer a
+# requirement of which index to use.
+# EVIDENCE-OF: R-15800-25719 If index-name does not exist or cannot be
+# used for the query, then the preparation of the SQL statement fails.
+#
 do_test indexedby-2.4 {
   catchsql { SELECT * FROM t1 INDEXED BY i3 WHERE a = 'one' AND b = 'two'}
 } {1 {no such index: i3}}
+
+# EVIDENCE-OF: R-62112-42456 If the query optimizer is unable to use the
+# index specified by the INDEX BY clause, then the query will fail with
+# an error.
+do_test indexedby-2.4.1 {
+  catchsql { SELECT b FROM t1 INDEXED BY i1 WHERE b = 'two' }
+} {1 {no query solution}}
+
 do_test indexedby-2.5 {
   catchsql { SELECT * FROM t1 INDEXED BY i5 WHERE a = 'one' AND b = 'two'}
 } {1 {no such index: i5}}
@@ -82,11 +106,26 @@ do_test indexedby-2.7 {
   catchsql { SELECT * FROM v1 INDEXED BY i1 WHERE a = 'one' }
 } {1 {no such index: i1}}
 
+
 # Tests for single table cases.
 #
+# EVIDENCE-OF: R-37002-28871 The "NOT INDEXED" clause specifies that no
+# index shall be used when accessing the preceding table, including
+# implied indices create by UNIQUE and PRIMARY KEY constraints. However,
+# the rowid can still be used to look up entries even when "NOT INDEXED"
+# is specified.
+#
 do_execsql_test indexedby-3.1 {
+  EXPLAIN QUERY PLAN SELECT * FROM t1 WHERE a = 'one' AND b = 'two'
+} {/SEARCH TABLE t1 USING INDEX/}
+do_execsql_test indexedby-3.1.1 {
   EXPLAIN QUERY PLAN SELECT * FROM t1 NOT INDEXED WHERE a = 'one' AND b = 'two'
 } {0 0 0 {SCAN TABLE t1}}
+do_execsql_test indexedby-3.1.2 {
+  EXPLAIN QUERY PLAN SELECT * FROM t1 NOT INDEXED WHERE rowid=1
+} {/SEARCH TABLE t1 USING INTEGER PRIMARY KEY .rowid=/}
+
+
 do_execsql_test indexedby-3.2 {
   EXPLAIN QUERY PLAN 
   SELECT * FROM t1 INDEXED BY i1 WHERE a = 'one' AND b = 'two'
@@ -184,6 +223,10 @@ do_execsql_test indexedby-6.2 {
   EXPLAIN QUERY PLAN SELECT * FROM t1 NOT INDEXED WHERE b = 10 ORDER BY rowid 
 } {0 0 0 {SCAN TABLE t1}}
 
+# EVIDENCE-OF: R-40297-14464 The INDEXED BY phrase forces the SQLite
+# query planner to use a particular named index on a DELETE, SELECT, or
+# UPDATE statement.
+#
 # Test that "INDEXED BY" can be used in a DELETE statement.
 # 
 do_execsql_test indexedby-7.1 {
diff --git a/test/like.test b/test/like.test
index 923272cfb2..18a01dc996 100644
--- a/test/like.test
+++ b/test/like.test
@@ -749,7 +749,7 @@ ifcapable like_opt&&!icu {
     count {
       SELECT a FROM t10 WHERE f LIKE '12%' ORDER BY +a;
     }
-  } {12 123 scan 3 like 0}
+  } {12 123 scan 4 like 0}
   do_test like-10.6 {
     count {
       SELECT a FROM t10 WHERE a LIKE '12%' ORDER BY +a;
@@ -790,7 +790,7 @@ ifcapable like_opt&&!icu {
     count {
       SELECT a FROM t10b WHERE f GLOB '12*' ORDER BY +a;
     }
-  } {12 123 scan 3 like 0}
+  } {12 123 scan 4 like 0}
   do_test like-10.15 {
     count {
       SELECT a FROM t10b WHERE a GLOB '12*' ORDER BY +a;
diff --git a/test/like3.test b/test/like3.test
new file mode 100644
index 0000000000..a1faf76915
--- /dev/null
+++ b/test/like3.test
@@ -0,0 +1,112 @@
+# 2015-03-06
+#
+# 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.
+#
+#***********************************************************************
+#
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the LIKE and GLOB operators and
+# in particular the optimizations that occur to help those operators
+# run faster and that those optimizations work correctly when there
+# are both strings and blobs being tested.
+#
+# Ticket 05f43be8fdda9fbd948d374319b99b054140bc36 shows that the following
+# SQL was not working correctly:
+#
+#     CREATE TABLE t1(x TEXT UNIQUE COLLATE nocase);
+#     INSERT INTO t1(x) VALUES(x'616263');
+#     SELECT 'query-1', x FROM t1 WHERE x LIKE 'a%';
+#     SELECT 'query-2', x FROM t1 WHERE +x LIKE 'a%';
+#
+# This script verifies that it works right now.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_execsql_test like3-1.1 {
+  PRAGMA encoding=UTF8;
+  CREATE TABLE t1(a,b TEXT COLLATE nocase);
+  INSERT INTO t1(a,b)
+     VALUES(1,'abc'),
+           (2,'ABX'),
+           (3,'BCD'),
+           (4,x'616263'),
+           (5,x'414258'),
+           (6,x'424344');
+  CREATE INDEX t1ba ON t1(b,a);
+
+  SELECT a, b FROM t1 WHERE b LIKE 'aB%' ORDER BY +a;
+} {1 abc 2 ABX 4 abc 5 ABX}
+do_execsql_test like3-1.2 {
+  SELECT a, b FROM t1 WHERE +b LIKE 'aB%' ORDER BY +a;
+} {1 abc 2 ABX 4 abc 5 ABX}
+
+do_execsql_test like3-2.0 {
+  CREATE TABLE t2(a, b TEXT);
+  INSERT INTO t2 SELECT a, b FROM t1;
+  CREATE INDEX t2ba ON t2(b,a);
+  SELECT a, b FROM t2 WHERE b GLOB 'ab*' ORDER BY +a;
+} {1 abc 4 abc}
+do_execsql_test like3-2.1 {
+  SELECT a, b FROM t2 WHERE +b GLOB 'ab*' ORDER BY +a;
+} {1 abc 4 abc}
+do_execsql_test like3-2.2 {
+  SELECT a, b FROM t2 WHERE b>=x'6162' AND b GLOB 'ab*'
+} {4 abc}
+do_execsql_test like3-2.3 {
+  SELECT a, b FROM t2 WHERE +b>=x'6162' AND +b GLOB 'ab*'
+} {4 abc}
+do_execsql_test like3-2.4 {
+  SELECT a, b FROM t2 WHERE b GLOB 'ab*' AND b>=x'6162'
+} {4 abc}
+do_execsql_test like3-2.5 {
+  SELECT a, b FROM t2 WHERE +b GLOB 'ab*' AND +b>=x'6162'
+} {4 abc}
+
+do_execsql_test like3-3.0 {
+  CREATE TABLE t3(x TEXT PRIMARY KEY COLLATE nocase);
+  INSERT INTO t3(x) VALUES('aaa'),('abc'),('abd'),('abe'),('acz');
+  INSERT INTO t3(x) SELECT CAST(x AS blob) FROM t3;
+  SELECT quote(x) FROM t3 WHERE x LIKE 'ab%' ORDER BY x;
+} {'abc' 'abd' 'abe' X'616263' X'616264' X'616265'}
+do_execsql_test like3-3.1 {
+  SELECT quote(x) FROM t3 WHERE x LIKE 'ab%' ORDER BY x DESC;
+} {X'616265' X'616264' X'616263' 'abe' 'abd' 'abc'}
+do_execsql_test like3-3.1ck {
+  SELECT quote(x) FROM t3 WHERE x LIKE 'ab%' ORDER BY +x DESC;
+} {X'616265' X'616264' X'616263' 'abe' 'abd' 'abc'}
+do_execsql_test like3-3.2 {
+  SELECT quote(x) FROM t3 WHERE x LIKE 'ab%' ORDER BY x ASC;
+} {'abc' 'abd' 'abe' X'616263' X'616264' X'616265'}
+do_execsql_test like3-3.2ck {
+  SELECT quote(x) FROM t3 WHERE x LIKE 'ab%' ORDER BY +x ASC;
+} {'abc' 'abd' 'abe' X'616263' X'616264' X'616265'}
+
+do_execsql_test like3-4.0 {
+  CREATE TABLE t4(x TEXT COLLATE nocase);
+  CREATE INDEX t4x ON t4(x DESC);
+  INSERT INTO t4(x) SELECT x FROM t3;
+  SELECT quote(x) FROM t4 WHERE x LIKE 'ab%' ORDER BY x;
+} {'abc' 'abd' 'abe' X'616263' X'616264' X'616265'}
+do_execsql_test like3-4.1 {
+  SELECT quote(x) FROM t4 WHERE x LIKE 'ab%' ORDER BY x DESC;
+} {X'616265' X'616264' X'616263' 'abe' 'abd' 'abc'}
+do_execsql_test like3-4.1ck {
+  SELECT quote(x) FROM t4 WHERE x LIKE 'ab%' ORDER BY +x DESC;
+} {X'616265' X'616264' X'616263' 'abe' 'abd' 'abc'}
+do_execsql_test like3-4.2 {
+  SELECT quote(x) FROM t4 WHERE x LIKE 'ab%' ORDER BY x ASC;
+} {'abc' 'abd' 'abe' X'616263' X'616264' X'616265'}
+do_execsql_test like3-4.2ck {
+  SELECT quote(x) FROM t4 WHERE x LIKE 'ab%' ORDER BY +x ASC;
+} {'abc' 'abd' 'abe' X'616263' X'616264' X'616265'}
+
+
+
+finish_test
diff --git a/test/limit.test b/test/limit.test
index 5d6ef336b2..d72749770c 100644
--- a/test/limit.test
+++ b/test/limit.test
@@ -251,6 +251,12 @@ do_test limit-6.8 {
 # Make sure LIMIT works well with compound SELECT statements.
 # Ticket #393
 #
+# EVIDENCE-OF: R-13512-64012 In a compound SELECT, only the last or
+# right-most simple SELECT may contain a LIMIT clause.
+#
+# EVIDENCE-OF: R-03782-50113 In a compound SELECT, the LIMIT clause
+# applies to the entire compound, not just the final SELECT.
+#
 ifcapable compound {
 do_test limit-7.1.1 {
   catchsql {
diff --git a/test/lock.test b/test/lock.test
index 6ec85eea3c..f785c4bb23 100644
--- a/test/lock.test
+++ b/test/lock.test
@@ -241,6 +241,9 @@ execsql {ROLLBACK}
 
 # Test the built-in busy timeout handler
 #
+# EVIDENCE-OF: R-23579-05241 PRAGMA busy_timeout; PRAGMA busy_timeout =
+# milliseconds; Query or change the setting of the busy timeout.
+#
 do_test lock-2.8 {
   db2 timeout 400
   execsql BEGIN
diff --git a/test/lock_common.tcl b/test/lock_common.tcl
index bc1eb86bdc..a758e7af2e 100644
--- a/test/lock_common.tcl
+++ b/test/lock_common.tcl
@@ -86,21 +86,51 @@ proc launch_testfixture {{prg ""}} {
 # Execute a command in a child testfixture process, connected by two-way
 # channel $chan. Return the result of the command, or an error message.
 #
-proc testfixture {chan cmd} {
-  puts $chan $cmd
-  puts $chan OVER
-  set r ""
-  while { 1 } {
+proc testfixture {chan cmd args} {
+
+  if {[llength $args] == 0} {
+    fconfigure $chan -blocking 1
+    puts $chan $cmd
+    puts $chan OVER
+
+    set r ""
+    while { 1 } {
+      set line [gets $chan]
+      if { $line == "OVER" } { 
+        set res [lindex $r 1]
+        if { [lindex $r 0] } { error $res }
+        return $res
+      }
+      if {[eof $chan]} {
+        return "ERROR: Child process hung up"
+      }
+      append r $line
+    }
+    return $r
+  } else {
+    set ::tfnb($chan) ""
+    fconfigure $chan -blocking 0 -buffering none
+    puts $chan $cmd
+    puts $chan OVER
+    fileevent $chan readable [list testfixture_script_cb $chan [lindex $args 0]]
+    return ""
+  }
+}
+
+proc testfixture_script_cb {chan script} {
+  if {[eof $chan]} {
+    append ::tfnb($chan) "ERROR: Child process hung up"
+    set line "OVER"
+  } else {
     set line [gets $chan]
-    if { $line == "OVER" } { 
-      set res [lindex $r 1]
-      if { [lindex $r 0] } { error $res }
-      return $res
-    }
-    if {[eof $chan]} {
-      return "ERROR: Child process hung up"
-    }
-    append r $line
+  }
+
+  if { $line == "OVER" } {
+    uplevel #0 $script [list [lindex $::tfnb($chan) 1]]
+    unset ::tfnb($chan)
+    fileevent $chan readable ""
+  } else {
+    append ::tfnb($chan) $line
   }
 }
 
diff --git a/test/malloc5.test b/test/malloc5.test
index 6abedf79e1..c046499261 100644
--- a/test/malloc5.test
+++ b/test/malloc5.test
@@ -71,6 +71,23 @@ do_test malloc5-1.3 {
   expr $::pgalloc > 0
 } {1}
 
+# The sizes of memory allocations from system malloc() might vary,
+# depending on the memory allocator algorithms used.  The following
+# routine is designed to support answers that fall within a range
+# of values while also supplying easy-to-understand "expected" values
+# when errors occur.
+#
+proc value_in_range {target x args} {
+  set v [lindex $args 0]
+  if {$v!=""} {
+    if {$v<$target*$x} {return $v}
+    if {$v>$target/$x} {return $v}
+  }
+  return "number between [expr {int($target*$x)}] and [expr {int($target/$x)}]"
+}
+set mrange 0.98   ;#  plus or minus 2%
+
+
 do_test malloc5-1.4 {
   # Commit the transaction and open a new one. Read 1 page into the cache.
   # Because the page is not dirty, it is eligible for collection even
@@ -81,16 +98,16 @@ do_test malloc5-1.4 {
     BEGIN;
     SELECT * FROM abc;
   }
-  sqlite3_release_memory
-} $::pgalloc
+  value_in_range $::pgalloc $::mrange [sqlite3_release_memory]
+} [value_in_range $::pgalloc $::mrange]
 
 do_test malloc5-1.5 {
   # Conclude the transaction opened in the previous [do_test] block. This
   # causes another page (page 1) to become eligible for recycling.
   #
   execsql { COMMIT }
-  sqlite3_release_memory
-} $::pgalloc
+  value_in_range $::pgalloc $::mrange [sqlite3_release_memory]
+} [value_in_range $::pgalloc $::mrange]
 
 do_test malloc5-1.6 {
   # Manipulate the cache so that it contains two unused pages. One requires 
@@ -101,8 +118,8 @@ do_test malloc5-1.6 {
     SELECT * FROM abc;
     CREATE TABLE def(d, e, f);
   }
-  sqlite3_release_memory 500
-} $::pgalloc
+  value_in_range $::pgalloc $::mrange [sqlite3_release_memory 500]
+} [value_in_range $::pgalloc $::mrange]
 
 do_test malloc5-1.7 {
   # Database should not be locked this time. 
diff --git a/test/mallocK.test b/test/mallocK.test
index 0a21b9fa0a..65791e79ea 100644
--- a/test/mallocK.test
+++ b/test/mallocK.test
@@ -143,6 +143,33 @@ do_faultsim_test 7.2 -faults oom* -body {
   faultsim_test_result [list 0 {}]
 }
 
+reset_db
+
+proc isqrt {i} { expr { int(sqrt($i)) } }
+db func isqrt isqrt
+
+do_execsql_test 8.0 {
+  PRAGMA encoding = 'utf-16';
+  CREATE TABLE x2(x TEXT, y TEXT);
+  WITH data(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM data
+  )
+  INSERT INTO x2 SELECT isqrt(i), isqrt(i) FROM data LIMIT 400;
+  CREATE INDEX x2x ON x2(x);
+  CREATE INDEX x2y ON x2(y);
+  ANALYZE;
+  DELETE FROM x2;
+}
+
+proc str {a} { return $a }
+db func str -deterministic str
+
+do_faultsim_test 8 -faults oom* -body {
+  execsql { SELECT * FROM x2 WHERE x = str('19') AND y = str('4') }
+} -test {
+  faultsim_test_result [list 0 {}]
+}
+
 
 finish_test
 
diff --git a/test/multiplex4.test b/test/multiplex4.test
index 9c304c314d..2caebeadb7 100644
--- a/test/multiplex4.test
+++ b/test/multiplex4.test
@@ -59,6 +59,14 @@ do_test multiplex4-1.1 {
   multiplex_file_list mx4test
 } {mx4test.db}
 
+# NB:  The PRAGMA multiplex_truncate command is implemented using the
+# SQLITE_FCNTL_PRAGMA file-control...
+#
+# EVIDENCE-OF: R-12238-55120 Whenever a PRAGMA statement is parsed, an
+# SQLITE_FCNTL_PRAGMA file control is sent to the open sqlite3_file
+# object corresponding to the database file to which the pragma
+# statement refers.
+#
 do_test multiplex4-1.2 {
   db eval {PRAGMA multiplex_truncate}
 } {on}
@@ -84,6 +92,16 @@ do_test multiplex4-1.9 {
   db eval {PRAGMA multiplex_truncate=0}
 } {off}
 
+# EVIDENCE-OF: R-26188-08449 If the SQLITE_FCNTL_PRAGMA file control
+# returns SQLITE_OK, then the parser assumes that the VFS has handled
+# the PRAGMA itself and the parser generates a no-op prepared statement
+# if result string is NULL, or that returns a copy of the result string
+# if the string is non-NULL.
+#
+do_test multiplex4-1.9-explain {
+  db eval {EXPLAIN PRAGMA multiplex_truncate=0;}
+} {/String8 \d \d \d off/}
+
 do_test multiplex4-1.10 {
   db eval {
     INSERT INTO t1(x) VALUES(randomblob(250000));
diff --git a/test/pragma.test b/test/pragma.test
index 09b9b6c14f..d164702643 100644
--- a/test/pragma.test
+++ b/test/pragma.test
@@ -51,6 +51,30 @@ ifcapable !pragma {
   return
 }
 
+# Capture the output of a pragma in a TEMP table.
+#
+proc capture_pragma {db tabname sql} {
+  $db eval "DROP TABLE IF EXISTS temp.$tabname"
+  set once 1
+  $db eval $sql x {
+    if {$once} {
+      set once 0
+      set ins "INSERT INTO $tabname VALUES"
+      set crtab "CREATE TEMP TABLE $tabname "
+      set sep "("
+      foreach col $x(*) {
+        append ins ${sep}\$x($col)
+        append crtab ${sep}\"$col\"
+        set sep ,
+      }
+      append ins )
+      append crtab )
+      $db eval $crtab
+    }
+    $db eval $ins
+  }
+}
+
 # Delete the preexisting database to avoid the special setup
 # that the "all.test" script does.
 #
@@ -59,7 +83,11 @@ delete_file test.db test.db-journal
 delete_file test3.db test3.db-journal
 sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
 
-
+# EVIDENCE-OF: R-24197-42751 PRAGMA database.cache_size; PRAGMA
+# database.cache_size = pages; PRAGMA database.cache_size = -kibibytes;
+# Query or change the suggested maximum number of database disk pages
+# that SQLite will hold in memory at once per open database file.
+#
 ifcapable pager_pragmas {
 set DFLT_CACHE_SZ [db one {PRAGMA default_cache_size}]
 set TEMP_CACHE_SZ [db one {PRAGMA temp.default_cache_size}]
@@ -71,6 +99,8 @@ do_test pragma-1.1 {
   }
 } [list $DFLT_CACHE_SZ $DFLT_CACHE_SZ 2]
 do_test pragma-1.2 {
+  # EVIDENCE-OF: R-42059-47211 If the argument N is positive then the
+  # suggested cache size is set to N.
   execsql {
     PRAGMA synchronous=OFF;
     PRAGMA cache_size=1234;
@@ -620,9 +650,10 @@ ifcapable {foreignkey} {
     }
   } {}
   do_test pragma-6.4 {
-    execsql {
+    capture_pragma db out {
       pragma index_list(t3);
     }
+    db eval {SELECT seq, "name", "unique" FROM out ORDER BY seq}
   } {0 sqlite_autoindex_t3_1 1}
 }
 ifcapable {!foreignkey} {
@@ -631,9 +662,43 @@ ifcapable {!foreignkey} {
 do_test pragma-6.5.1 {
   execsql {
     CREATE INDEX t3i1 ON t3(a,b);
+  }
+  capture_pragma db out {
     pragma index_info(t3i1);
   }
+  db eval {SELECT seqno, cid, name FROM out ORDER BY seqno}
 } {0 0 a 1 1 b}
+
+# EVIDENCE-OF: R-23114-21695 The auxiliary index-columns are not shown
+# by the index_info pragma, but they are listed by the index_xinfo
+# pragma.
+#
+do_test pragma-6.5.1b {
+  capture_pragma db out {PRAGMA index_xinfo(t3i1)}
+  db eval {SELECT seqno, cid, name FROM out ORDER BY seqno}
+} {0 0 a 1 1 b 2 -1 {}}
+
+
+# EVIDENCE-OF: R-62725-03366 PRAGMA database.index_info(index-name);
+# This pragma returns one row for each key column in the named index.
+#
+# (The first column of output from PRAGMA index_info is...)
+# EVIDENCE-OF: R-34186-52914 The rank of the column within the index. (0
+# means left-most.)
+#
+# (The second column of output from PRAGMA index_info is...)
+# EVIDENCE-OF: R-65019-08383 The rank of the column within the table
+# being indexed.
+#
+# (The third column of output from PRAGMA index_info is...)
+# EVIDENCE-OF: R-09773-34266 The name of the column being indexed.
+#
+do_execsql_test pragma-6.5.1c {
+  CREATE INDEX t3i2 ON t3(b,a);
+  PRAGMA index_info='t3i2';
+  DROP INDEX t3i2;
+} {0 1 b 1 0 a}
+
 do_test pragma-6.5.2 {
   execsql {
     pragma index_info(t3i1_bogus);
@@ -676,8 +741,10 @@ do_test pragma-6.7 {
       four REAL DEFAULT X'abcdef',
       five DEFAULT CURRENT_TIME
     );
-    PRAGMA table_info(test_table);
   }
+  capture_pragma db out {PRAGMA table_info(test_table)}
+  db eval {SELECT cid, "name", type, "notnull", dflt_value, pk FROM out
+            ORDER BY cid}
 } [concat \
   {0 one INT 1 -1 0} \
   {1 two text 0 {} 0} \
@@ -689,14 +756,16 @@ do_test pragma-6.7 {
 # Miscellaneous tests
 #
 ifcapable schema_pragmas {
+# EVIDENCE-OF: R-63500-32024 PRAGMA database.index_list(table-name);
+# This pragma returns one row for each index associated with the given
+# table.
 do_test pragma-7.1.1 {
   # Make sure a pragma knows to read the schema if it needs to
   db close
   sqlite3 db test.db
-  execsql {
-    pragma index_list(t3);
-  }
-} {0 t3i1 0 1 sqlite_autoindex_t3_1 1}
+  capture_pragma db out "PRAGMA index_list(t3)"
+  db eval {SELECT name, "origin" FROM out ORDER BY name DESC}
+} {t3i1 c sqlite_autoindex_t3_1 u}
 do_test pragma-7.1.2 {
   execsql {
     pragma index_list(t3_bogus);
@@ -1281,18 +1350,23 @@ ifcapable pager_pragmas {
   db close
   forcedelete test.db
   sqlite3 db test.db
-
+ 
+  # EVIDENCE-OF: R-13905-26312 PRAGMA database.page_count; Return the
+  # total number of pages in the database file.
+  #
   do_test pragma-14.1 {
     execsql { pragma auto_vacuum = 0 }
-    execsql { pragma page_count }
-  } {0}
+    execsql { pragma page_count; pragma main.page_count }
+  } {0 0}
 
   do_test pragma-14.2 {
     execsql { 
       CREATE TABLE abc(a, b, c);
       PRAGMA page_count;
+      PRAGMA main.page_count;
+      PRAGMA temp.page_count;
     }
-  } {2}
+  } {2 2 0}
   do_test pragma-14.2uc {
     execsql {pragma PAGE_COUNT}
   } {2}
@@ -1701,23 +1775,90 @@ do_test 23.1 {
     CREATE TABLE t1(a INTEGER PRIMARY KEY,b,c,d);
     CREATE INDEX i1 ON t1(b,c);
     CREATE INDEX i2 ON t1(c,d);
+    CREATE INDEX i2x ON t1(d COLLATE nocase, c DESC);
     CREATE TABLE t2(x INTEGER REFERENCES t1);
   }
   db2 eval {SELECT name FROM sqlite_master}
-} {t1 i1 i2 t2}
-do_test 23.2 {
+} {t1 i1 i2 i2x t2}
+do_test 23.2a {
   db eval {
     DROP INDEX i2;
     CREATE INDEX i2 ON t1(c,d,b);
   }
-  db2 eval {PRAGMA index_info(i2)}
-} {0 2 c 1 3 d 2 1 b}
+  capture_pragma db2 out {PRAGMA index_info(i2)}
+  db2 eval {SELECT cid, name, '|' FROM out ORDER BY seqno}
+} {2 c | 3 d | 1 b |}
+
+# EVIDENCE-OF: R-44874-46325 PRAGMA database.index_xinfo(index-name);
+# This pragma returns information about every column in an index.
+#
+# EVIDENCE-OF: R-45970-35618 Unlike this index_info pragma, this pragma
+# returns information about every column in the index, not just the key
+# columns.
+#
+do_test 23.2b {
+  capture_pragma db2 out {PRAGMA index_xinfo(i2)}
+  db2 eval {SELECT cid, name, "desc", coll, "key", '|' FROM out ORDER BY seqno}
+} {2 c 0 BINARY 1 | 3 d 0 BINARY 1 | 1 b 0 BINARY 1 | -1 {} 0 BINARY 0 |}
+
+# (The first column of output from PRAGMA index_xinfo is...)
+# EVIDENCE-OF: R-00197-14279 The rank of the column within the index. (0
+# means left-most. Key columns come before auxiliary columns.)
+#
+# (The second column of output from PRAGMA index_xinfo is...)
+# EVIDENCE-OF: R-40889-06838 The rank of the column within the table
+# being indexed, or -1 if the index-column is the rowid of the table
+# being indexed.
+#
+# (The third column of output from PRAGMA index_xinfo is...)
+# EVIDENCE-OF: R-22751-28901 The name of the column being indexed, or
+# NULL if the index-column is the rowid of the table being indexed.
+#
+# (The fourth column of output from PRAGMA index_xinfo is...)
+# EVIDENCE-OF: R-11847-09179 1 if the index-column is sorted in reverse
+# (DESC) order by the index and 0 otherwise.
+#
+# (The fifth column of output from PRAGMA index_xinfo is...)
+# EVIDENCE-OF: R-15313-19540 The name for the collating sequence used to
+# compare values in the index-column.
+#
+# (The sixth column of output from PRAGMA index_xinfo is...)
+# EVIDENCE-OF: R-14310-64553 1 if the index-column is a key column and 0
+# if the index-column is an auxiliary column.
+#
+do_test 23.2c {
+  db2 eval {PRAGMA index_xinfo(i2)}
+} {0 2 c 0 BINARY 1 1 3 d 0 BINARY 1 2 1 b 0 BINARY 1 3 -1 {} 0 BINARY 0}
+do_test 23.2d {
+  db2 eval {PRAGMA index_xinfo(i2x)}
+} {0 3 d 0 nocase 1 1 2 c 1 BINARY 1 2 -1 {} 0 BINARY 0}
+
+# EVIDENCE-OF: R-63500-32024 PRAGMA database.index_list(table-name);
+# This pragma returns one row for each index associated with the given
+# table.
+#
+# (The first column of output from PRAGMA index_list is...)
+# EVIDENCE-OF: R-02753-24748 A sequence number assigned to each index
+# for internal tracking purposes.
+#
+# (The second column of output from PRAGMA index_list is...)
+# EVIDENCE-OF: R-35496-03635 The name of the index.
+#
+# (The third column of output from PRAGMA index_list is...)
+# EVIDENCE-OF: R-57301-64506 "1" if the index is UNIQUE and "0" if not.
+#
+# (The fourth column of output from PRAGMA index_list is...)
+# EVIDENCE-OF: R-36609-39554 "c" if the index was created by a CREATE
+# INDEX statement, "u" if the index was created by a UNIQUE constraint,
+# or "pk" if the index was created by a PRIMARY KEY constraint.
+#
 do_test 23.3 {
   db eval {
     CREATE INDEX i3 ON t1(d,b,c);
   }
-  db2 eval {PRAGMA index_list(t1)}
-} {0 i3 0 1 i2 0 2 i1 0}
+  capture_pragma db2 out {PRAGMA index_list(t1)}
+  db2 eval {SELECT seq, name, "unique", origin, '|' FROM out ORDER BY seq}
+} {0 i3 0 c | 1 i2 0 c | 2 i2x 0 c | 3 i1 0 c |}
 do_test 23.4 {
   db eval {
     ALTER TABLE t1 ADD COLUMN e;
diff --git a/test/pragma2.test b/test/pragma2.test
index 0dbc9777d2..3ade8c1a07 100644
--- a/test/pragma2.test
+++ b/test/pragma2.test
@@ -39,6 +39,10 @@ delete_file test3.db test3.db-journal
 sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
 db eval {PRAGMA auto_vacuum=0}
 
+
+# EVIDENCE-OF: R-17887-14874 PRAGMA database.freelist_count; Return the
+# number of unused pages in the database file.
+#
 do_test pragma2-1.1 {
   execsql {
     PRAGMA freelist_count;
diff --git a/test/rdonly.test b/test/rdonly.test
index 938cc7884c..404c613b21 100644
--- a/test/rdonly.test
+++ b/test/rdonly.test
@@ -32,6 +32,11 @@ do_test rdonly-1.1 {
     SELECT * FROM t1;
   }
 } {1}
+
+# EVIDENCE-OF: R-29639-16887 The sqlite3_db_readonly(D,N) interface
+# returns 1 if the database N of connection D is read-only, 0 if it is
+# read/write, or -1 if N is not the name of a database on connection D.
+#
 do_test rdonly-1.1.1 {
   sqlite3_db_readonly db main
 } {0}
diff --git a/test/select4.test b/test/select4.test
index 8fc200d434..47a44081f4 100644
--- a/test/select4.test
+++ b/test/select4.test
@@ -105,6 +105,10 @@ ifcapable subquery {
     }
   } {0 1 2 2 3 3 3 3}
 }
+
+# EVIDENCE-OF: R-02644-22131 In a compound SELECT statement, only the
+# last or right-most simple SELECT may have an ORDER BY clause.
+#
 do_test select4-1.3 {
   set v [catch {execsql {
     SELECT DISTINCT log FROM t1 ORDER BY log
diff --git a/test/select6.test b/test/select6.test
index 64a8519d89..590512a6b0 100644
--- a/test/select6.test
+++ b/test/select6.test
@@ -557,5 +557,61 @@ do_catchsql_test 10.8 {
   )
 } $err
 
+# 2015-02-09 Ticket [2f7170d73bf9abf80339187aa3677dce3dbcd5ca]
+# "misuse of aggregate" error if aggregate column from FROM
+# subquery is used in correlated subquery 
+#
+do_execsql_test 11.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(w INT, x INT);
+  INSERT INTO t1(w,x)
+   VALUES(1,10),(2,20),(3,30),
+         (2,21),(3,31),
+         (3,32);
+  CREATE INDEX t1wx ON t1(w,x);
+
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(w INT, y VARCHAR(8));
+  INSERT INTO t2(w,y) VALUES(1,'one'),(2,'two'),(3,'three'),(4,'four');
+  CREATE INDEX t2wy ON t2(w,y);
+
+  SELECT cnt, xyz, (SELECT y FROM t2 WHERE w=cnt), '|'
+    FROM (SELECT count(*) AS cnt, w AS xyz FROM t1 GROUP BY 2)
+   ORDER BY cnt, xyz;
+} {1 1 one | 2 2 two | 3 3 three |}
+do_execsql_test 11.2 {
+  SELECT cnt, xyz, lower((SELECT y FROM t2 WHERE w=cnt)), '|'
+    FROM (SELECT count(*) AS cnt, w AS xyz FROM t1 GROUP BY 2)
+   ORDER BY cnt, xyz;
+} {1 1 one | 2 2 two | 3 3 three |}
+do_execsql_test 11.3 {
+  SELECT cnt, xyz, '|'
+    FROM (SELECT count(*) AS cnt, w AS xyz FROM t1 GROUP BY 2)
+   WHERE (SELECT y FROM t2 WHERE w=cnt)!='two'
+   ORDER BY cnt, xyz;
+} {1 1 | 3 3 |}
+do_execsql_test 11.4 {
+  SELECT cnt, xyz, '|'
+    FROM (SELECT count(*) AS cnt, w AS xyz FROM t1 GROUP BY 2)
+   ORDER BY lower((SELECT y FROM t2 WHERE w=cnt));
+} {1 1 | 3 3 | 2 2 |}
+do_execsql_test 11.5 {
+  SELECT cnt, xyz, 
+         CASE WHEN (SELECT y FROM t2 WHERE w=cnt)=='two'
+              THEN 'aaa' ELSE 'bbb'
+          END, '|'
+    FROM (SELECT count(*) AS cnt, w AS xyz FROM t1 GROUP BY 2)
+   ORDER BY +cnt;
+} {1 1 bbb | 2 2 aaa | 3 3 bbb |}
+
+do_execsql_test 11.100 {
+  DROP TABLE t1;
+  DROP TABLE t2;
+  CREATE TABLE t1(x);
+  CREATE TABLE t2(y, z);
+  SELECT ( SELECT y FROM t2 WHERE z = cnt )
+    FROM ( SELECT count(*) AS cnt FROM t1 );
+} {{}}
+
 
 finish_test
diff --git a/test/shell1.test b/test/shell1.test
index f24b00d494..874718447c 100644
--- a/test/shell1.test
+++ b/test/shell1.test
@@ -406,19 +406,22 @@ do_test shell1-3.11.3 {
   catchcmd "test.db" ".import FOO BAR BAD"
 } {1 {Usage: .import FILE TABLE}}
 
-# .indices ?TABLE?       Show names of all indices
-#                          If TABLE specified, only show indices for tables
+# .indexes ?TABLE?       Show names of all indexes
+#                          If TABLE specified, only show indexes for tables
 #                          matching LIKE pattern TABLE.
 do_test shell1-3.12.1 {
-  catchcmd "test.db" ".indices"
+  catchcmd "test.db" ".indexes"
 } {0 {}}
 do_test shell1-3.12.2 {
+  catchcmd "test.db" ".indexes FOO"
+} {0 {}}
+do_test shell1-3.12.2-legacy {
   catchcmd "test.db" ".indices FOO"
 } {0 {}}
 do_test shell1-3.12.3 {
   # too many arguments
-  catchcmd "test.db" ".indices FOO BAD"
-} {1 {Usage: .indices ?LIKE-PATTERN?}}
+  catchcmd "test.db" ".indexes FOO BAD"
+} {1 {Usage: .indexes ?LIKE-PATTERN?}}
 
 # .mode MODE ?TABLE?     Set output mode where MODE is one of:
 #                          ascii    Columns/rows delimited by 0x1F and 0x1E
diff --git a/test/shell4.test b/test/shell4.test
index c29faf00cf..fcb0b2b715 100644
--- a/test/shell4.test
+++ b/test/shell4.test
@@ -12,12 +12,12 @@
 # The focus of this file is testing the CLI shell tool.
 # These tests are specific to the .stats command.
 #
-# $Id: shell4.test,v 1.7 2009/07/17 16:54:48 shaneh Exp $
-#
+# 2015-03-19:  Added tests for .trace
 
 # Test plan:
 #
 #   shell4-1.*: Basic tests specific to the "stats" command.
+#   shell4-2.*: Basic tests for ".trace"
 #
 set testdir [file dirname $argv0]
 source $testdir/tester.tcl
@@ -113,4 +113,24 @@ SELECT 1;
        [regexp {Autoindex Inserts} $res]
 } {1 1 1}
 
+do_test shell4-2.1 {
+  catchcmd ":memory:" "CREATE TABLE t1(x);\n.trace"
+} {1 {Usage: .trace FILE|off}}
+do_test shell4-2.2 {
+  catchcmd ":memory:" "CREATE TABLE t1(x);\n.trace off\n.trace off\n"
+} {0 {}}
+do_test shell4-2.3 {
+  catchcmd ":memory:" ".trace stdout\n.trace\n.trace off\n.dump\n"
+} {/^1 {PRAGMA.*Usage:.*}$/}
+ifcapable trace {
+do_test shell4-2.4 {
+  catchcmd ":memory:" ".trace stdout\nCREATE TABLE t1(x);SELECT * FROM t1;"
+} {0 {CREATE TABLE t1(x);
+SELECT * FROM t1;}}
+do_test shell4-2.5 {
+  catchcmd ":memory:" "CREATE TABLE t1(x);\n.trace stdout\nSELECT * FROM t1;"
+} {0 {SELECT * FROM t1;}}
+}
+
+
 finish_test
diff --git a/test/shell5.test b/test/shell5.test
index e22db04d80..b921accca5 100644
--- a/test/shell5.test
+++ b/test/shell5.test
@@ -405,4 +405,34 @@ SELECT * FROM t5;
   set x
 } "0 \{\"test 1\"\x1F,test 2<EOL>\x1Etest 3\x1Ftest 4<EOL>\x1E\}"
 
+do_test shell5-4.1 {
+  forcedelete shell5.csv
+  set fd [open shell5.csv w]
+  puts $fd "1,2,3"
+  puts $fd "4,5"
+  puts $fd "6,7,8"
+  close $fd
+  catchcmd test.db [string trim {
+.mode csv
+CREATE TABLE t6(a, b, c);
+.import shell5.csv t6
+  }]
+  db eval { SELECT * FROM t6 ORDER BY a }
+} {1 2 3 4 5 {} 6 7 8}
+
+do_test shell5-4.2 {
+  forcedelete shell5.csv
+  set fd [open shell5.csv w]
+  puts $fd "1,2,3"
+  puts $fd "4,5"
+  puts $fd "6,7,8,9"
+  close $fd
+  catchcmd test.db [string trim {
+.mode csv
+CREATE TABLE t7(a, b, c);
+.import shell5.csv t7
+  }]
+  db eval { SELECT * FROM t7 ORDER BY a }
+} {1 2 3 4 5 {} 6 7 8}
+
 finish_test
diff --git a/test/shrink.test b/test/shrink.test
index e03ebeeb6e..6cc0786d28 100644
--- a/test/shrink.test
+++ b/test/shrink.test
@@ -24,6 +24,9 @@ do_test shrink-1.1 {
     INSERT INTO t1 VALUES(randomblob(1000000),1);
   }
   set ::baseline sqlite3_memory_used
+  # EVIDENCE-OF: R-58814-63508 The sqlite3_db_release_memory(D) interface
+  # attempts to free as much heap memory as possible from database
+  # connection D.
   sqlite3_db_release_memory db
   expr {$::baseline > [sqlite3_memory_used]+500000}
 } {1}
diff --git a/test/softheap1.test b/test/softheap1.test
index 522e455e33..07f981e50a 100644
--- a/test/softheap1.test
+++ b/test/softheap1.test
@@ -24,6 +24,14 @@ ifcapable !integrityck {
   return
 }
 
+# EVIDENCE-OF: R-26343-45930 This pragma invokes the
+# sqlite3_soft_heap_limit64() interface with the argument N, if N is
+# specified and is a non-negative integer.
+#
+# EVIDENCE-OF: R-64451-07163 The soft_heap_limit pragma always returns
+# the same integer that would be returned by the
+# sqlite3_soft_heap_limit64(-1) C-language function.
+#
 do_test softheap1-1.0 {
   execsql {PRAGMA soft_heap_limit}
 } [sqlite3_soft_heap_limit -1]
diff --git a/test/sort4.test b/test/sort4.test
index 7b913610da..13d9a5999a 100644
--- a/test/sort4.test
+++ b/test/sort4.test
@@ -25,7 +25,20 @@ sqlite3 db test.db
 
 
 # Configure the sorter to use 3 background threads.
-db eval {PRAGMA threads=3}
+#
+# EVIDENCE-OF: R-19249-32353 SQLITE_LIMIT_WORKER_THREADS The maximum
+# number of auxiliary worker threads that a single prepared statement
+# may start.
+#
+do_test sort4-init001 {
+  db eval {PRAGMA threads=5}
+  sqlite3_limit db SQLITE_LIMIT_WORKER_THREADS -1
+} {5}
+do_test sort4-init002 {
+  sqlite3_limit db SQLITE_LIMIT_WORKER_THREADS 3
+  db eval {PRAGMA threads}
+} {3}
+
 
 # Minimum number of seconds to run for. If the value is 0, each test
 # is run exactly once. Otherwise, tests are repeated until the timeout
diff --git a/test/speedtest1.c b/test/speedtest1.c
index 8e5b74c56e..93f7d145ee 100644
--- a/test/speedtest1.c
+++ b/test/speedtest1.c
@@ -12,7 +12,7 @@ static const char zHelp[] =
   "  --explain           Like --sqlonly but with added EXPLAIN keywords\n"
   "  --heap SZ MIN       Memory allocator uses SZ bytes & min allocation MIN\n"
   "  --incrvacuum        Enable incremenatal vacuum mode\n"
-  "  --journalmode M     Set the journal_mode to MODE\n"
+  "  --journal M         Set the journal_mode to M\n"
   "  --key KEY           Set the encryption key to KEY\n"
   "  --lookaside N SZ    Configure lookaside for N slots of SZ bytes each\n"
   "  --nosync            Set PRAGMA synchronous=OFF\n"
diff --git a/test/sqllimits1.test b/test/sqllimits1.test
index 57fc931f7c..39e3aedd8f 100644
--- a/test/sqllimits1.test
+++ b/test/sqllimits1.test
@@ -250,6 +250,9 @@ do_test sqllimits1-4.10.1 {
 # Test cases sqllimits1-5.* test that the SQLITE_MAX_LENGTH limit
 # is enforced.
 #
+# EVIDENCE-OF: R-61987-00541 SQLITE_LIMIT_LENGTH The maximum size of any
+# string or BLOB or table row, in bytes.
+#
 db close
 sqlite3 db test.db
 set LARGESIZE 99999
@@ -406,6 +409,9 @@ unset strvalue
 # Test cases sqllimits1-6.* test that the SQLITE_MAX_SQL_LENGTH limit
 # is enforced.
 #
+# EVIDENCE-OF: R-09808-17554 SQLITE_LIMIT_SQL_LENGTH The maximum length
+# of an SQL statement, in bytes.
+#
 do_test sqllimits1-6.1 {
   sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH 50000
   set sql "SELECT 1 WHERE 1==1"
@@ -567,6 +573,11 @@ do_test sqllimits1-7.7.4 {
 #--------------------------------------------------------------------
 # Test cases sqllimits1-8.* test the SQLITE_MAX_COLUMN limit.
 #
+# EVIDENCE-OF: R-43996-29471 SQLITE_LIMIT_COLUMN The maximum number of
+# columns in a table definition or in the result set of a SELECT or the
+# maximum number of columns in an index or in an ORDER BY or GROUP BY
+# clause.
+#
 set SQLITE_LIMIT_COLUMN 200
 sqlite3_limit db SQLITE_LIMIT_COLUMN $SQLITE_LIMIT_COLUMN
 do_test sqllimits1-8.1 {
@@ -670,6 +681,9 @@ do_test sqllimits1-8.11 {
 # limit is enforced. The limit refers to the number of terms in 
 # the expression.
 #
+# EVIDENCE-OF: R-12723-08526 SQLITE_LIMIT_EXPR_DEPTH The maximum depth
+# of the parse tree on any expression.
+#
 if {$SQLITE_MAX_EXPR_DEPTH==0} {
   puts -nonewline stderr "WARNING: Compile with -DSQLITE_MAX_EXPR_DEPTH to run "
   puts stderr "tests sqllimits1-9.X"
@@ -729,6 +743,9 @@ if 0 {
 # Test the SQLITE_LIMIT_FUNCTION_ARG limit works. Test case names
 # match the pattern "sqllimits1-11.*".
 #
+# EVIDENCE-OF: R-59001-45278 SQLITE_LIMIT_FUNCTION_ARG The maximum
+# number of arguments on a function.
+#
 for {set max 5} {$max<=$SQLITE_MAX_FUNCTION_ARG} {incr max} {
   do_test sqllimits1-11.$max.1 {
     set vals [list]
@@ -762,6 +779,9 @@ for {set max 5} {$max<=$SQLITE_MAX_FUNCTION_ARG} {incr max} {
 #--------------------------------------------------------------------
 # Test cases sqllimits1-12.*: Test the SQLITE_MAX_ATTACHED limit.
 #
+# EVIDENCE-OF: R-41778-26203 SQLITE_LIMIT_ATTACHED The maximum number of
+# attached databases.
+#
 ifcapable attach {
   do_test sqllimits1-12.1 {
     set max $::SQLITE_MAX_ATTACHED
@@ -785,6 +805,9 @@ ifcapable attach {
 # Test cases sqllimits1-13.*: Check that the SQLITE_MAX_VARIABLE_NUMBER 
 # limit works.
 #
+# EVIDENCE-OF: R-42363-29104 SQLITE_LIMIT_VARIABLE_NUMBER The maximum
+# index number of any parameter in an SQL statement.
+#
 do_test sqllimits1-13.1 {
   set max $::SQLITE_MAX_VARIABLE_NUMBER
   catchsql "SELECT ?[expr {$max+1}] FROM t1"
@@ -806,6 +829,9 @@ do_test sqllimits1-13.2 {
 # implementation by overriding the like() scalar function bypasses
 # this limitation.
 #
+# EVIDENCE-OF: R-12940-37052 SQLITE_LIMIT_LIKE_PATTERN_LENGTH The
+# maximum length of the pattern argument to the LIKE or GLOB operators.
+#
 # These tests check that the limit is not incorrectly applied to
 # the left-hand-side of the LIKE operator (the string being tested
 # against the pattern).
diff --git a/test/tclsqlite.test b/test/tclsqlite.test
index 3d9cd46ac6..8d7fea0d2a 100644
--- a/test/tclsqlite.test
+++ b/test/tclsqlite.test
@@ -118,7 +118,7 @@ do_test tcl-1.14 {
 do_test tcl-1.15 {
   set v [catch {db function} msg]
   lappend v $msg
-} {1 {wrong # args: should be "db function NAME [-argcount N] SCRIPT"}}
+} {1 {wrong # args: should be "db function NAME ?SWITCHES? SCRIPT"}}
 do_test tcl-1.16 {
   set v [catch {db last_insert_rowid xyz} msg]
   lappend v $msg
diff --git a/test/vtab2.test b/test/vtab2.test
index 05a4834a1b..3884ec57df 100644
--- a/test/vtab2.test
+++ b/test/vtab2.test
@@ -10,10 +10,10 @@
 #***********************************************************************
 # This file implements regression tests for SQLite library.
 #
-# $Id: vtab2.test,v 1.9 2008/10/13 10:37:50 danielk1977 Exp $
 
 set testdir [file dirname $argv0]
 source $testdir/tester.tcl
+set testprefix vtab2
 
 ifcapable !vtab||!schema_pragmas {
   finish_test
@@ -133,4 +133,24 @@ do_test vtab2-4.5 {
   execsql { SELECT * FROM fkey }
 } {t1 a}
 
+#-------------------------------------------------------------------------
+#
+ifcapable fts3 {
+  reset_db
+  do_execsql_test 5.1 {
+    PRAGMA encoding='UTF16';
+  }
+
+  do_test 5.2 {
+    sqlite3_exec_hex db { CREATE VIRTUAL TABLE %C8 USING fts3 }
+  } {0 {}}
+
+  do_test 5.3 {
+    sqlite3_exec_hex db { CREATE VIRTUAL TABLE %C9 USING s }
+  } {/1 {malformed database schema.* already exists}/}
+}
+
+
+
 finish_test
+
diff --git a/test/walblock.test b/test/walblock.test
new file mode 100644
index 0000000000..9a85ea4acc
--- /dev/null
+++ b/test/walblock.test
@@ -0,0 +1,117 @@
+# 2015 Mar 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.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/wal_common.tcl
+
+ifcapable !wal {finish_test ; return }
+if {$::tcl_platform(platform)!="unix"} { finish_test ; return }
+set testprefix walblock
+
+catch { db close }
+testvfs tvfs -fullshm 1
+foreach f [glob test.db*] { forcedelete $f }
+
+sqlite3 db test.db -vfs tvfs
+do_execsql_test 1.1.0 {
+  CREATE TABLE t1(x, y);
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(3, 4);
+  INSERT INTO t1 VALUES(5, 6);
+  PRAGMA journal_mode = wal;
+  INSERT INTO t1 VALUES(7, 8);
+} {wal}
+
+do_test 1.1.1 { 
+  lsort [glob test.db*] 
+} {test.db test.db-shm test.db-wal}
+
+do_test 1.1.2 { 
+  set C [launch_testfixture]
+  testfixture $C {
+    sqlite3 db test.db
+    db eval { SELECT * FROM t1 }
+  }
+} {1 2 3 4 5 6 7 8}
+
+do_test 1.1.3 { 
+  set ::out [list]
+  testfixture $C {
+    db eval { SELECT * FROM t1 }
+  } [list set ::out]
+  set ::out
+} {}
+
+do_test 1.1.4 { 
+  vwait ::out
+  set ::out
+} {1 2 3 4 5 6 7 8}
+
+#
+# Test that if a read client cannot read the wal-index header because a
+# write client is in the middle of updating it, the reader blocks until
+# the writer finishes.
+#
+#   1. Open a write transaction using client [db] in this process.
+#
+#   2. Attempt to commit the write transaction. Intercept the xShmBarrier()
+#      call made by the writer between updating the two copies of the
+#      wal-index header.
+#
+#   3. Within the xShmBarrier() callback, make an asynchronous request to
+#      the other process to read from the database. It should block, as it
+#      cannot get read the wal-index header.
+#
+#   4. Still in xShmBarrier(), wait for 5 seconds. Check that the other
+#      process has not answered the request.
+#
+#   5: Finish committing the transaction. Then wait for 0.5 seconds more.
+#      Ensure that the second process has by this stage read the database
+#      and that the snapshot it read included the transaction committed in
+#      step (4).
+#
+do_execsql_test 1.2.1 {
+  BEGIN;
+    INSERT INTO t1 VALUES(9, 10);
+} {}
+
+tvfs script barrier_callback
+tvfs filter xShmBarrier
+proc barrier_callback {method args} {
+  set ::out ""
+  testfixture $::C { db eval { SELECT * FROM t1 } } {set ::out}
+
+  do_test "1.2.2.(blocking 5 seconds)" { 
+    set ::continue 0
+    after 5000 {set ::continue 1}
+    vwait ::continue
+    set ::out 
+  } {}
+}
+
+execsql COMMIT
+
+do_test "1.2.3.(blocking 0.5 seconds)" { 
+  set ::continue 0
+  after 500 {set ::continue 1}
+  vwait ::continue
+  set ::out 
+} {1 2 3 4 5 6 7 8 9 10}
+
+
+finish_test
+
+
+
+
diff --git a/test/where8.test b/test/where8.test
index 139251aa07..a155a95ab2 100644
--- a/test/where8.test
+++ b/test/where8.test
@@ -66,11 +66,11 @@ do_test where8-1.3 {
 
 do_test where8-1.4 { 
   execsql_status2 { SELECT c FROM t1 WHERE a > 8 OR b GLOB 't*' }
-} {IX X III II 0 0 9}
+} {IX X III II 0 0 10}
 
 do_test where8-1.5 { 
   execsql_status2 { SELECT c FROM t1 WHERE a > 8 OR b GLOB 'f*' }
-} {IX X V IV 0 0 9}
+} {IX X V IV 0 0 10}
 
 do_test where8-1.6 { 
   execsql_status { SELECT c FROM t1 WHERE a = 1 OR b = 'three' ORDER BY rowid }
diff --git a/test/whereK.test b/test/whereK.test
new file mode 100644
index 0000000000..13c86508f9
--- /dev/null
+++ b/test/whereK.test
@@ -0,0 +1,72 @@
+# 2015-03-16
+#
+# 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 regression tests for SQLite library.  The
+# focus of this file is testing OR expressions where terms can be
+# factored from either side of the OR and combined into a single new
+# AND term that is beneficial to the search.  Examples:
+#
+#      (x>A OR x=A)              -->    ... AND (x>=A)
+#      (x>A OR (x=A AND y>=B)    -->    ... AND (x>=A)
+#
+
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix whereK
+
+do_execsql_test 1.1 {
+  CREATE TABLE t1(a,b,c);
+  WITH RECURSIVE c(x) AS (VALUES(0) UNION ALL SELECT x+1 FROM c WHERE x<99)
+    INSERT INTO t1(a,b,c) SELECT x, x/10, x%10 FROM c;
+  CREATE INDEX t1bc ON t1(b,c);
+  SELECT a FROM t1 WHERE b>9 OR b=9 ORDER BY +a;
+} {90 91 92 93 94 95 96 97 98 99}
+do_execsql_test 1.1eqp {
+  EXPLAIN QUERY PLAN
+  SELECT a FROM t1 WHERE b>9 OR b=9 ORDER BY +a;
+} {/SEARCH TABLE t1 USING INDEX t1bc/}
+
+do_execsql_test 1.2 {
+  SELECT a FROM t1 WHERE b>8 OR (b=8 AND c>7) ORDER BY +a;
+} {88 89 90 91 92 93 94 95 96 97 98 99}
+do_execsql_test 1.2eqp {
+  EXPLAIN QUERY PLAN
+  SELECT a FROM t1 WHERE b>8 OR (b=8 AND c>7) ORDER BY +a;
+} {/SEARCH TABLE t1 USING INDEX t1bc/}
+
+do_execsql_test 1.3 {
+  SELECT a FROM t1 WHERE (b=8 AND c>7) OR b>8 ORDER BY +a;
+} {88 89 90 91 92 93 94 95 96 97 98 99}
+do_execsql_test 1.3eqp {
+  EXPLAIN QUERY PLAN
+  SELECT a FROM t1 WHERE (b=8 AND c>7) OR b>8 ORDER BY +a;
+} {/SEARCH TABLE t1 USING INDEX t1bc/}
+
+do_execsql_test 1.4 {
+  SELECT a FROM t1 WHERE (b=8 AND c>7) OR 8<b ORDER BY +a;
+} {88 89 90 91 92 93 94 95 96 97 98 99}
+do_execsql_test 1.4eqp {
+  EXPLAIN QUERY PLAN
+  SELECT a FROM t1 WHERE (b=8 AND c>7) OR 8<b ORDER BY +a;
+} {/SEARCH TABLE t1 USING INDEX t1bc/}
+
+do_execsql_test 1.5 {
+  SELECT a FROM t1 WHERE (b=8 AND c>7) OR (b>8 AND c NOT IN (4,5,6))
+   ORDER BY +a;
+} {88 89 90 91 92 93 97 98 99}
+do_execsql_test 1.5eqp {
+  EXPLAIN QUERY PLAN
+  SELECT a FROM t1 WHERE (b=8 AND c>7) OR (b>8 AND c NOT IN (4,5,6))
+   ORDER BY +a;
+} {/SEARCH TABLE t1 USING INDEX t1bc/}
+
+finish_test
diff --git a/test/with1.test b/test/with1.test
index 42d2277aef..ad88a67c22 100644
--- a/test/with1.test
+++ b/test/with1.test
@@ -827,5 +827,20 @@ WITH RECURSIVE
 SELECT x FROM t1 EXCEPT SELECT y FROM t2 ORDER BY 1;
 } {2 4 8 10 14 16 20}
 
+# 2015-03-21
+# Column wildcards on the LHS of a recursive table expression
+#
+do_catchsql_test 13.1 {
+  WITH RECURSIVE c(i) AS (SELECT * UNION ALL SELECT i+1 FROM c WHERE i<10)
+  SELECT i FROM c;
+} {1 {no tables specified}}
+do_catchsql_test 13.2 {
+  WITH RECURSIVE c(i) AS (SELECT 5,* UNION ALL SELECT i+1 FROM c WHERE i<10)
+  SELECT i FROM c;
+} {1 {no tables specified}}
+do_catchsql_test 13.3 {
+  WITH RECURSIVE c(i,j) AS (SELECT 5,* UNION ALL SELECT i+1,11 FROM c WHERE i<10)
+  SELECT i FROM c;
+} {1 {table c has 1 values for 2 columns}}
 
 finish_test
diff --git a/test/without_rowid6.test b/test/without_rowid6.test
index e827ccab90..8ca78ba63a 100644
--- a/test/without_rowid6.test
+++ b/test/without_rowid6.test
@@ -37,5 +37,81 @@ do_execsql_test without_rowid6-140 {
   SELECT c FROM t1 ORDER BY b LIMIT 5;
 } {x1y x2y x3y x4y x5y}
 
+# Column t1.b starts out as a unique index, but that index is
+# subsequently converted into a PRIMARY KEY.
+#
+do_execsql_test without_rowid6-200 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(
+    a UNIQUE,
+    b UNIQUE,
+    c UNIQUE,
+    PRIMARY KEY(b)
+  ) WITHOUT ROWID;
+  INSERT INTO t1(a,b,c) VALUES(1,8,3),(4,5,6),(7,2,9);
+  SELECT a FROM t1 WHERE b>3 ORDER BY b;
+} {4 1}
+do_execsql_test without_rowid6-210 {
+  EXPLAIN QUERY PLAN
+  SELECT a FROM t1 WHERE b>3 ORDER BY b;
+} {/SEARCH TABLE t1 USING PRIMARY KEY .b>../}
+do_execsql_test without_rowid6-220 {
+  PRAGMA index_list(t1);
+} {/sqlite_autoindex_t1_2 1 pk/}
+
+do_execsql_test without_rowid6-300 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(
+    a UNIQUE,
+    b PRIMARY KEY,
+    c UNIQUE,
+    UNIQUE(b)
+  ) WITHOUT ROWID;
+  INSERT INTO t1(a,b,c) VALUES(1,8,3),(4,5,6),(7,2,9);
+  SELECT a FROM t1 WHERE b>3 ORDER BY b;
+} {4 1}
+do_execsql_test without_rowid6-310 {
+  EXPLAIN QUERY PLAN
+  SELECT a FROM t1 WHERE b>3 ORDER BY b;
+} {/SEARCH TABLE t1 USING PRIMARY KEY .b>../}
+do_execsql_test without_rowid6-320 {
+  PRAGMA index_list(t1);
+} {/sqlite_autoindex_t1_2 1 pk/}
+
+do_execsql_test without_rowid6-400 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(
+    a UNIQUE,
+    b UNIQUE PRIMARY KEY,
+    c UNIQUE
+  ) WITHOUT ROWID;
+  INSERT INTO t1(a,b,c) VALUES(1,8,3),(4,5,6),(7,2,9);
+  SELECT a FROM t1 WHERE b>3 ORDER BY b;
+} {4 1}
+do_execsql_test without_rowid6-410 {
+  EXPLAIN QUERY PLAN
+  SELECT a FROM t1 WHERE b>3 ORDER BY b;
+} {/SEARCH TABLE t1 USING PRIMARY KEY .b>../}
+do_execsql_test without_rowid6-420 {
+  PRAGMA index_list(t1);
+} {/sqlite_autoindex_t1_2 1 pk/}
+
+do_execsql_test without_rowid6-500 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a,b,c,
+    UNIQUE(b,c),
+    PRIMARY KEY(b,c)
+  ) WITHOUT ROWID;
+  INSERT INTO t1(a,b,c) VALUES(1,8,3),(4,5,6),(7,2,9);
+  SELECT a FROM t1 WHERE b>3 ORDER BY b;
+} {4 1}
+do_execsql_test without_rowid6-510 {
+  EXPLAIN QUERY PLAN
+  SELECT a FROM t1 WHERE b>3 ORDER BY b;
+} {/SEARCH TABLE t1 USING PRIMARY KEY .b>../}
+do_execsql_test without_rowid6-520 {
+  PRAGMA index_list(t1);
+} {/sqlite_autoindex_t1_1 1 pk/}
+
 
 finish_test
diff --git a/tool/build-all-msvc.bat b/tool/build-all-msvc.bat
index 1fb61d4df8..2ae202620a 100755
--- a/tool/build-all-msvc.bat
+++ b/tool/build-all-msvc.bat
@@ -58,6 +58,9 @@ IF NOT DEFINED _AECHO (SET _AECHO=REM)
 IF NOT DEFINED _CECHO (SET _CECHO=REM)
 IF NOT DEFINED _VECHO (SET _VECHO=REM)
 
+SET REDIRECT=^>
+IF DEFINED __ECHO SET REDIRECT=^^^>
+
 %_AECHO% Running %0 %*
 
 REM SET DFLAGS=/L
@@ -420,11 +423,11 @@ FOR %%P IN (%PLATFORMS%) DO (
         ) ELSE (
           REM
           REM NOTE: Even when the cleaning step has been disabled, we still
-          REM       need to remove the build output for the files we are
+          REM       need to remove the build output for all the files we are
           REM       specifically wanting to build for each platform.
           REM
-          %_AECHO% Cleaning final output files only...
-          %__ECHO% DEL /Q *.lo sqlite3.dll sqlite3.lib sqlite3.pdb
+          %_AECHO% Cleaning final core library output files only...
+          %__ECHO% DEL /Q *.lo sqlite3.dll sqlite3.lib sqlite3.pdb 2%REDIRECT% NUL
         )
 
         REM
@@ -476,6 +479,64 @@ FOR %%P IN (%PLATFORMS%) DO (
             GOTO errors
           )
         )
+
+        REM
+        REM NOTE: If requested, also build the shell executable.
+        REM
+        IF DEFINED BUILD_ALL_SHELL (
+          REM
+          REM NOTE: If necessary, make sure any previous build output for the
+          REM       shell executable is deleted.
+          REM
+          IF DEFINED NOCLEAN (
+            REM
+            REM NOTE: Even when the cleaning step has been disabled, we still
+            REM       need to remove the build output for all the files we are
+            REM       specifically wanting to build for each platform.
+            REM
+            %_AECHO% Cleaning final shell executable output files only...
+            %__ECHO% DEL /Q sqlite3.exe sqlite3sh.pdb 2%REDIRECT% NUL
+          )
+
+          REM
+          REM NOTE: Call NMAKE with the MSVC makefile to build the "sqlite3.exe"
+          REM       binary.  The x86 compiler will be used to compile the native
+          REM       command line tools needed during the build process itself.
+          REM       Also, disable looking for and/or linking to the native Tcl
+          REM       runtime library.
+          REM
+          %__ECHO% %NMAKE_CMD% sqlite3.exe XCOMPILE=1 USE_NATIVE_LIBPATHS=1 NO_TCL=1 %NMAKE_ARGS%
+
+          IF ERRORLEVEL 1 (
+            ECHO Failed to build %%B "sqlite3.exe" for platform %%P.
+            GOTO errors
+          )
+
+          REM
+          REM NOTE: Copy the "sqlite3.exe" file to the appropriate directory
+          REM       for the build and platform beneath the binary directory.
+          REM
+          %__ECHO% XCOPY sqlite3.exe "%BINARYDIRECTORY%\%%B\%%D\" %FFLAGS% %DFLAGS%
+
+          IF ERRORLEVEL 1 (
+            ECHO Failed to copy "sqlite3.exe" to "%BINARYDIRECTORY%\%%B\%%D\".
+            GOTO errors
+          )
+
+          REM
+          REM NOTE: Copy the "sqlite3sh.pdb" file to the appropriate directory
+          REM       for the build and platform beneath the binary directory
+          REM       unless we are prevented from doing so.
+          REM
+          IF NOT DEFINED NOSYMBOLS (
+            %__ECHO% XCOPY sqlite3sh.pdb "%BINARYDIRECTORY%\%%B\%%D\" %FFLAGS% %DFLAGS%
+
+            IF ERRORLEVEL 1 (
+              ECHO Failed to copy "sqlite3sh.pdb" to "%BINARYDIRECTORY%\%%B\%%D\".
+              GOTO errors
+            )
+          )
+        )
       )
     )
   )
diff --git a/tool/mkpragmatab.tcl b/tool/mkpragmatab.tcl
index 21503d16ee..964946e788 100644
--- a/tool/mkpragmatab.tcl
+++ b/tool/mkpragmatab.tcl
@@ -4,10 +4,10 @@
 #
 # To add new pragmas, first add the name and other relevant attributes
 # of the pragma to the "pragma_def" object below.  Then run this script
-# to generate the C-code for the lookup table and copy/paste the output
-# of this script into the appropriate spot in the pragma.c source file.
+# to generate the ../src/pragma.h header file that contains macros and
+# the lookup table needed for pragma name lookup in the pragma.c module.
 # Then add the extra "case PragTyp_XXXXX:" and subsequent code for the
-# new pragma.
+# new pragma in ../src/pragma.c.
 #
 
 set pragma_def {
@@ -205,6 +205,14 @@ set pragma_def {
   IF:   !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
 
   NAME: index_info
+  TYPE: INDEX_INFO
+  ARG:  0
+  FLAG: NeedSchema
+  IF:   !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
+
+  NAME: index_xinfo
+  TYPE: INDEX_INFO
+  ARG:  1
   FLAG: NeedSchema
   IF:   !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
 
@@ -308,7 +316,20 @@ set pragma_def {
 
   NAME: threads
 }
-fconfigure stdout -translation lf
+
+# Open the output file
+#
+set destfile "[file dir [file dir [file normal $argv0]]]/src/pragma.h"
+puts "Overwriting $destfile with new pragma table..."
+set fd [open $destfile wb]
+puts $fd {/* DO NOT EDIT!
+** This file is automatically generated by the script at
+** ../tool/mkpragmatab.tcl.  To update the set of pragmas, edit
+** that script and rerun it.
+*/}
+
+# Parse the PRAGMA table above.
+#
 set name {}
 set type {}
 set if {}
@@ -362,7 +383,7 @@ foreach name $allnames {
   set if [lindex $allbyname($name) 2]
   if {[regexp SQLITE_DEBUG $if] || [regexp SQLITE_HAS_CODEC $if]} continue
   set seentype($type) 1
-  puts [format {#define %-35s %4d} PragTyp_$type $pnum]
+  puts $fd [format {#define %-35s %4d} PragTyp_$type $pnum]
   incr pnum
 }
 foreach name $allnames {
@@ -371,14 +392,14 @@ foreach name $allnames {
   set if [lindex $allbyname($name) 2]
   if {[regexp SQLITE_DEBUG $if]} continue
   set seentype($type) 1
-  puts [format {#define %-35s %4d} PragTyp_$type $pnum]
+  puts $fd [format {#define %-35s %4d} PragTyp_$type $pnum]
   incr pnum
 }
 foreach name $allnames {
   set type [lindex $allbyname($name) 0]
   if {[info exists seentype($type)]} continue
   set seentype($type) 1
-  puts [format {#define %-35s %4d} PragTyp_$type $pnum]
+  puts $fd [format {#define %-35s %4d} PragTyp_$type $pnum]
   incr pnum
 }
 
@@ -386,18 +407,18 @@ foreach name $allnames {
 #
 set fv 1
 foreach f [lsort [array names allflags]] {
-  puts [format {#define PragFlag_%-20s 0x%02x} $f $fv]
+  puts $fd [format {#define PragFlag_%-20s 0x%02x} $f $fv]
   set fv [expr {$fv*2}]
 }
 
 # Generate the lookup table
 #
-puts "static const struct sPragmaNames \173"
-puts "  const char *const zName;  /* Name of pragma */"
-puts "  u8 ePragTyp;              /* PragTyp_XXX value */"
-puts "  u8 mPragFlag;             /* Zero or more PragFlag_XXX values */"
-puts "  u32 iArg;                 /* Extra argument */"
-puts "\175 aPragmaNames\[\] = \173"
+puts $fd "static const struct sPragmaNames \173"
+puts $fd "  const char *const zName;  /* Name of pragma */"
+puts $fd "  u8 ePragTyp;              /* PragTyp_XXX value */"
+puts $fd "  u8 mPragFlag;             /* Zero or more PragFlag_XXX values */"
+puts $fd "  u32 iArg;                 /* Extra argument */"
+puts $fd "\175 aPragmaNames\[\] = \173"
 
 set current_if {}
 set spacer [format {    %26s } {}]
@@ -406,13 +427,13 @@ foreach name $allnames {
   if {$if!=$current_if} {
     if {$current_if!=""} {
       foreach this_if $current_if {
-        puts "#endif"
+        puts $fd "#endif"
       }
     }
     set current_if $if
     if {$current_if!=""} {
       foreach this_if $current_if {
-        puts "#if $this_if"
+        puts $fd "#if $this_if"
       }
     }
   }
@@ -422,17 +443,17 @@ foreach name $allnames {
   } else {
     set flagx PragFlag_[join $flag {|PragFlag_}]
   }
-  puts "  \173 /* zName:     */ \"$name\","
-  puts "    /* ePragTyp:  */ PragTyp_$type,"
-  puts "    /* ePragFlag: */ $flagx,"
-  puts "    /* iArg:      */ $arg \175,"
+  puts $fd "  \173 /* zName:     */ \"$name\","
+  puts $fd "    /* ePragTyp:  */ PragTyp_$type,"
+  puts $fd "    /* ePragFlag: */ $flagx,"
+  puts $fd "    /* iArg:      */ $arg \175,"
 }
 if {$current_if!=""} {
   foreach this_if $current_if {
-    puts "#endif"
+    puts $fd "#endif"
   }
 }
-puts "\175;"
+puts $fd "\175;"
 
 # count the number of pragmas, for information purposes
 #
@@ -444,4 +465,4 @@ foreach name $allnames {
   if {[regexp {^defined} $if] || [regexp {[^!]defined} $if]} continue
   incr dfltcnt
 }
-puts "/* Number of pragmas: $dfltcnt on by default, $allcnt total. */"
+puts $fd "/* Number of pragmas: $dfltcnt on by default, $allcnt total. */"
diff --git a/tool/mksqlite3c.tcl b/tool/mksqlite3c.tcl
index bd2f5e90a7..a8fadf6ead 100644
--- a/tool/mksqlite3c.tcl
+++ b/tool/mksqlite3c.tcl
@@ -113,6 +113,7 @@ foreach hdr {
    pager.h
    parse.h
    pcache.h
+   pragma.h
    rtree.h
    sqlite3ext.h
    sqlite3.h
@@ -121,6 +122,7 @@ foreach hdr {
    sqliteLimit.h
    vdbe.h
    vdbeInt.h
+   vxworks.h
    wal.h
    whereInt.h
 } {
diff --git a/tool/showdb.c b/tool/showdb.c
index 82b8c9f14f..7fdf7c91ad 100644
--- a/tool/showdb.c
+++ b/tool/showdb.c
@@ -375,7 +375,7 @@ static void decodeCell(
   int szPgHdr,            /* Size of the page header.  0 or 100 */
   int ofst                /* Cell begins at a[ofst] */
 ){
-  int i, j;
+  int i, j = 0;
   int leftChild;
   i64 k;
   i64 nPayload;
diff --git a/tool/spaceanal.tcl b/tool/spaceanal.tcl
index a227b85243..516d282445 100644
--- a/tool/spaceanal.tcl
+++ b/tool/spaceanal.tcl
@@ -4,6 +4,24 @@
 #
 
 if {[catch {
+
+# Argument $tname is the name of a table within the database opened by
+# database handle [db]. Return true if it is a WITHOUT ROWID table, or
+# false otherwise.
+#
+proc is_without_rowid {tname} {
+  set t [string map {' ''} $tname]
+  db eval "PRAGMA index_list = '$t'" o {
+    if {$o(origin) == "pk"} {
+      set n $o(name)
+      if {0==[db one { SELECT count(*) FROM sqlite_master WHERE name=$n }]} {
+        return 1
+      }
+    }
+  }
+  return 0
+}
+
 # Get the name of the database to analyze
 #
 proc usage {} {
@@ -167,20 +185,21 @@ set sql { SELECT name, tbl_name FROM sqlite_master WHERE rootpage>0 }
 foreach {name tblname} [concat sqlite_master sqlite_master [db eval $sql]] {
 
   set is_index [expr {$name!=$tblname}]
+  set idx_btree [expr {$is_index || [is_without_rowid $name]}]
   db eval {
     SELECT 
       sum(ncell) AS nentry,
-      sum(isleaf(pagetype, $is_index) * ncell) AS leaf_entries,
+      sum(isleaf(pagetype, $idx_btree) * ncell) AS leaf_entries,
       sum(payload) AS payload,
-      sum(isoverflow(pagetype, $is_index) * payload) AS ovfl_payload,
+      sum(isoverflow(pagetype, $idx_btree) * payload) AS ovfl_payload,
       sum(path LIKE '%+000000') AS ovfl_cnt,
       max(mx_payload) AS mx_payload,
-      sum(isinternal(pagetype, $is_index)) AS int_pages,
-      sum(isleaf(pagetype, $is_index)) AS leaf_pages,
-      sum(isoverflow(pagetype, $is_index)) AS ovfl_pages,
-      sum(isinternal(pagetype, $is_index) * unused) AS int_unused,
-      sum(isleaf(pagetype, $is_index) * unused) AS leaf_unused,
-      sum(isoverflow(pagetype, $is_index) * unused) AS ovfl_unused,
+      sum(isinternal(pagetype, $idx_btree)) AS int_pages,
+      sum(isleaf(pagetype, $idx_btree)) AS leaf_pages,
+      sum(isoverflow(pagetype, $idx_btree)) AS ovfl_pages,
+      sum(isinternal(pagetype, $idx_btree) * unused) AS int_unused,
+      sum(isleaf(pagetype, $idx_btree) * unused) AS leaf_unused,
+      sum(isoverflow(pagetype, $idx_btree) * unused) AS ovfl_unused,
       sum(pgsize) AS compressed_size
     FROM temp.dbstat WHERE name = $name
   } break