Add the SQLITE_MEM5_FAILOVER compile-time option, which if enabled allows

MEMSYS5 to go out to the system heap if it is unable to fulfill an allocation request. FossilOrigin-Name: bdd8617b3f4a4dcec03095e1f8810bd020477378fde7bbc2556f7ed8c845dd4e
Have SQLITE_FTS5_ENABLE_TEST_MI builds avoid reading the database schema from
2025-02-18 20:27:04 +00:00 · 2025-02-18 15:11:30 +00:00 · 2025-02-18 01:16:26 +00:00 · 2025-02-17 20:13:20 +00:00 · 2025-02-17 19:44:45 +00:00 · 2025-02-17 18:09:24 +00:00
147 changed files with 6236 additions and 4881 deletions
@@ -118,9 +118,14 @@ LDFLAGS.dlopen = @LDFLAGS_DLOPEN@
 LDFLAGS.readline = @LDFLAGS_READLINE@
 CFLAGS.readline = @CFLAGS_READLINE@
 LDFLAGS.icu = @LDFLAGS_ICU@
+LDFLAGS.rt = @LDFLAGS_RT@
 CFLAGS.icu = @CFLAGS_ICU@
 LDFLAGS.libsqlite3.soname = @LDFLAGS_LIBSQLITE3_SONAME@
 # soname: see https://sqlite.org/src/forumpost/5a3b44f510df8ded
+LDFLAGS.libsqlite3.os-specific = @LDFLAGS_MAC_CVERSION@ @LDFLAGS_OUT_IMPLIB@
+# os-specific: see
+# - https://sqlite.org/forum/forumpost/9dfd5b8fd525a5d7
+# - https://sqlite.org/forum/forumpost/0c7fc097b2
 ENABLE_SHARED = @ENABLE_SHARED@
 ENABLE_STATIC = @ENABLE_STATIC@
 HAVE_WASI_SDK = @HAVE_WASI_SDK@
@@ -142,7 +147,7 @@ T.cc.sqlite += -D_HAVE_SQLITE_CONFIG_H -DBUILD_sqlite
 # shell command.
 #
 CFLAGS.jimsh = @CFLAGS_JIMSH@
-JIMSH = ./jimsh$(TEXE)
+JIMSH = ./jimsh$(T.exe)

 #
 # $(B.tclsh) is documented in main.mk.
@@ -323,9 +328,6 @@ distclean-autosetup:	clean
 	rm -f $(TOP)/tool/emcc.sh
 	rm -f libsqlite3*$(T.dll)
 	rm -f jimsh0*
-#	-if [ -f ext/wasm/GNUmakefile ]; then \
-#		gmake --no-print-directory  --ignore-errors -C ext/wasm distclean; \
-#	fi >/dev/null 2>&1; true
 distclean: distclean-autosetup

 #
@@ -335,4 +337,5 @@ distclean: distclean-autosetup
 version-info$(T.exe): $(TOP)/tool/version-info.c Makefile sqlite3.h
 	$(T.link) $(ST_OPT) -o $@ $(TOP)/tool/version-info.c

+IS_CROSS_COMPILING = @IS_CROSS_COMPILING@
 include $(TOP)/main.mk
@@ -1396,7 +1396,7 @@ SRC00 = \
  $(TOP)\src\build.c \
  $(TOP)\src\callback.c \
  $(TOP)\src\complete.c \
-  $(TOP)\src\ctime.c \
+  ctime.c \
  $(TOP)\src\date.c \
  $(TOP)\src\dbpage.c \
  $(TOP)\src\dbstat.c \
@@ -1495,7 +1495,7 @@ SRC04 = \
 SRC05 = \
  $(TOP)\src\pager.h \
  $(TOP)\src\pcache.h \
-  $(TOP)\src\pragma.h \
+  pragma.h \
  $(TOP)\src\sqlite.h.in \
  $(TOP)\src\sqlite3ext.h \
  $(TOP)\src\sqliteInt.h \
@@ -1698,7 +1698,7 @@ HDR = \
   $(TOP)\src\pager.h \
   $(TOP)\src\pcache.h \
   parse.h \
-   $(TOP)\src\pragma.h \
+   pragma.h \
   $(SQLITE3H) \
   sqlite3ext.h \
   $(TOP)\src\sqliteInt.h \
@@ -2099,8 +2099,11 @@ callback.lo:	$(TOP)\src\callback.c $(HDR)
 complete.lo:	$(TOP)\src\complete.c $(HDR)
 	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\complete.c

-ctime.lo:	$(TOP)\src\ctime.c $(HDR)
-	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\ctime.c
+ctime.c:	$(TOP)\tool\mkctimec.tcl $(JIM_TCLSH)
+	$(JIM_TCLSH) $(TOP)\tool\mkctimec.tcl
+
+ctime.lo:	ctime.c $(HDR)
+	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c ctime.c

 date.lo:	$(TOP)\src\date.c $(HDR)
 	$(LTCOMPILE) $(CORE_COMPILE_OPTS) -c $(TOP)\src\date.c
@@ -2333,8 +2336,11 @@ parse.c:	$(TOP)\src\parse.y lemon.exe
 	copy /B parse.y +,,
 	.\lemon.exe $(REQ_FEATURE_FLAGS) $(OPT_FEATURE_FLAGS) $(EXT_FEATURE_FLAGS) $(OPTS) -S parse.y

+pragma.h:	$(TOP)\tool\mkpragmatab.tcl $(JIM_TCLSH)
+	$(JIM_TCLSH) $(TOP)\tool\mkpragmatab.tcl
+
 $(SQLITE3H):	$(TOP)\src\sqlite.h.in $(TOP)\manifest mksourceid.exe $(TOP)\VERSION $(JIM_TCLSH)
-	$(JIM_TCLSH) $(TOP)\tool\mksqlite3h.tcl "$(TOP:\=/)" > $(SQLITE3H) $(MKSQLITE3H_ARGS)
+	$(JIM_TCLSH) $(TOP)\tool\mksqlite3h.tcl "$(TOP:\=/)" -o $(SQLITE3H) $(MKSQLITE3H_ARGS)

 sqlite3ext.h:	.target_source
 !IF $(USE_STDCALL)!=0 || $(FOR_WIN10)!=0
@@ -2398,7 +2404,7 @@ SHELL_DEP = $(SHELL_DEP) $(TOP)\ext\misc\zipfile.c
 !ENDIF

 shell.c:	$(SHELL_DEP) $(TOP)\tool\mkshellc.tcl $(JIM_TCLSH)
-	$(JIM_TCLSH) $(TOP)\tool\mkshellc.tcl > shell.c
+	$(JIM_TCLSH) $(TOP)\tool\mkshellc.tcl shell.c

 zlib:
 	pushd $(ZLIBDIR) && $(MAKE) /f win32\Makefile.msc clean $(ZLIBLIB) && popd
@@ -2811,7 +2817,8 @@ moreclean:	clean

 clean:
 	del /Q *.exp *.lo *.ilk *.lib *.obj *.ncb *.pdb *.sdf *.suo 2>NUL
-	del /Q *.bsc *.def *.cod *.da *.bb *.bbg *.vc gmon.out 2>NUL
+	del /Q *.bsc *.cod *.da *.bb *.bbg *.vc gmon.out 2>NUL
+	del /Q sqlite3.def tclsqlite3.def ctime.c pragma.h 2>NUL
 	del /Q $(SQLITE3EXE) $(SQLITE3DLL) Replace.exe 2>NUL
 # <<mark>>
 	del /Q $(SQLITE3TCLDLL) pkgIndex.tcl 2>NUL
@@ -2845,4 +2852,5 @@ clean:
 	del /Q fts5.* fts5parse.* 2>NUL
 	del /Q lsm.h lsm1.c 2>NUL
 	del /q src-verify.exe 2>NUL
+	del /q jimsh.exe jimsh0.exe 2>NUL
 # <</mark>>
@@ -1 +1 @@
-3.48.0
+3.50.0
@@ -1,370 +0,0 @@
-Installation Instructions
-*************************
-
-Copyright (C) 1994-1996, 1999-2002, 2004-2011 Free Software Foundation,
-Inc.
-
-   Copying and distribution of this file, with or without modification,
-are permitted in any medium without royalty provided the copyright
-notice and this notice are preserved.  This file is offered as-is,
-without warranty of any kind.
-
-Basic Installation
-==================
-
-   Briefly, the shell commands `./configure; make; make install' should
-configure, build, and install this package.  The following
-more-detailed instructions are generic; see the `README' file for
-instructions specific to this package.  Some packages provide this
-`INSTALL' file but do not implement all of the features documented
-below.  The lack of an optional feature in a given package is not
-necessarily a bug.  More recommendations for GNU packages can be found
-in *note Makefile Conventions: (standards)Makefile Conventions.
-
-   The `configure' shell script attempts to guess correct values for
-various system-dependent variables used during compilation.  It uses
-those values to create a `Makefile' in each directory of the package.
-It may also create one or more `.h' files containing system-dependent
-definitions.  Finally, it creates a shell script `config.status' that
-you can run in the future to recreate the current configuration, and a
-file `config.log' containing compiler output (useful mainly for
-debugging `configure').
-
-   It can also use an optional file (typically called `config.cache'
-and enabled with `--cache-file=config.cache' or simply `-C') that saves
-the results of its tests to speed up reconfiguring.  Caching is
-disabled by default to prevent problems with accidental use of stale
-cache files.
-
-   If you need to do unusual things to compile the package, please try
-to figure out how `configure' could check whether to do them, and mail
-diffs or instructions to the address given in the `README' so they can
-be considered for the next release.  If you are using the cache, and at
-some point `config.cache' contains results you don't want to keep, you
-may remove or edit it.
-
-   The file `configure.ac' (or `configure.in') is used to create
-`configure' by a program called `autoconf'.  You need `configure.ac' if
-you want to change it or regenerate `configure' using a newer version
-of `autoconf'.
-
-   The simplest way to compile this package is:
-
-  1. `cd' to the directory containing the package's source code and type
-     `./configure' to configure the package for your system.
-
-     Running `configure' might take a while.  While running, it prints
-     some messages telling which features it is checking for.
-
-  2. Type `make' to compile the package.
-
-  3. Optionally, type `make check' to run any self-tests that come with
-     the package, generally using the just-built uninstalled binaries.
-
-  4. Type `make install' to install the programs and any data files and
-     documentation.  When installing into a prefix owned by root, it is
-     recommended that the package be configured and built as a regular
-     user, and only the `make install' phase executed with root
-     privileges.
-
-  5. Optionally, type `make installcheck' to repeat any self-tests, but
-     this time using the binaries in their final installed location.
-     This target does not install anything.  Running this target as a
-     regular user, particularly if the prior `make install' required
-     root privileges, verifies that the installation completed
-     correctly.
-
-  6. You can remove the program binaries and object files from the
-     source code directory by typing `make clean'.  To also remove the
-     files that `configure' created (so you can compile the package for
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-     also a `make maintainer-clean' target, but that is intended mainly
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-     with the distribution.
-
-  7. Often, you can also type `make uninstall' to remove the installed
-     files again.  In practice, not all packages have tested that
-     uninstallation works correctly, even though it is required by the
-     GNU Coding Standards.
-
-  8. Some packages, particularly those that use Automake, provide `make
-     distcheck', which can by used by developers to test that all other
-     targets like `make install' and `make uninstall' work correctly.
-     This target is generally not run by end users.
-
-Compilers and Options
-=====================
-
-   Some systems require unusual options for compilation or linking that
-the `configure' script does not know about.  Run `./configure --help'
-for details on some of the pertinent environment variables.
-
-   You can give `configure' initial values for configuration parameters
-by setting variables in the command line or in the environment.  Here
-is an example:
-
-     ./configure CC=c99 CFLAGS=-g LIBS=-lposix
-
-   *Note Defining Variables::, for more details.
-
-Compiling For Multiple Architectures
-====================================
-
-   You can compile the package for more than one kind of computer at the
-same time, by placing the object files for each architecture in their
-own directory.  To do this, you can use GNU `make'.  `cd' to the
-directory where you want the object files and executables to go and run
-the `configure' script.  `configure' automatically checks for the
-source code in the directory that `configure' is in and in `..'.  This
-is known as a "VPATH" build.
-
-   With a non-GNU `make', it is safer to compile the package for one
-architecture at a time in the source code directory.  After you have
-installed the package for one architecture, use `make distclean' before
-reconfiguring for another architecture.
-
-   On MacOS X 10.5 and later systems, you can create libraries and
-executables that work on multiple system types--known as "fat" or
-"universal" binaries--by specifying multiple `-arch' options to the
-compiler but only a single `-arch' option to the preprocessor.  Like
-this:
-
-     ./configure CC="gcc -arch i386 -arch x86_64 -arch ppc -arch ppc64" \
-                 CXX="g++ -arch i386 -arch x86_64 -arch ppc -arch ppc64" \
-                 CPP="gcc -E" CXXCPP="g++ -E"
-
-   This is not guaranteed to produce working output in all cases, you
-may have to build one architecture at a time and combine the results
-using the `lipo' tool if you have problems.
-
-Installation Names
-==================
-
-   By default, `make install' installs the package's commands under
-`/usr/local/bin', include files under `/usr/local/include', etc.  You
-can specify an installation prefix other than `/usr/local' by giving
-`configure' the option `--prefix=PREFIX', where PREFIX must be an
-absolute file name.
-
-   You can specify separate installation prefixes for
-architecture-specific files and architecture-independent files.  If you
-pass the option `--exec-prefix=PREFIX' to `configure', the package uses
-PREFIX as the prefix for installing programs and libraries.
-Documentation and other data files still use the regular prefix.
-
-   In addition, if you use an unusual directory layout you can give
-options like `--bindir=DIR' to specify different values for particular
-kinds of files.  Run `configure --help' for a list of the directories
-you can set and what kinds of files go in them.  In general, the
-default for these options is expressed in terms of `${prefix}', so that
-specifying just `--prefix' will affect all of the other directory
-specifications that were not explicitly provided.
-
-   The most portable way to affect installation locations is to pass the
-correct locations to `configure'; however, many packages provide one or
-both of the following shortcuts of passing variable assignments to the
-`make install' command line to change installation locations without
-having to reconfigure or recompile.
-
-   The first method involves providing an override variable for each
-affected directory.  For example, `make install
-prefix=/alternate/directory' will choose an alternate location for all
-directory configuration variables that were expressed in terms of
-`${prefix}'.  Any directories that were specified during `configure',
-but not in terms of `${prefix}', must each be overridden at install
-time for the entire installation to be relocated.  The approach of
-makefile variable overrides for each directory variable is required by
-the GNU Coding Standards, and ideally causes no recompilation.
-However, some platforms have known limitations with the semantics of
-shared libraries that end up requiring recompilation when using this
-method, particularly noticeable in packages that use GNU Libtool.
-
-   The second method involves providing the `DESTDIR' variable.  For
-example, `make install DESTDIR=/alternate/directory' will prepend
-`/alternate/directory' before all installation names.  The approach of
-`DESTDIR' overrides is not required by the GNU Coding Standards, and
-does not work on platforms that have drive letters.  On the other hand,
-it does better at avoiding recompilation issues, and works well even
-when some directory options were not specified in terms of `${prefix}'
-at `configure' time.
-
-Optional Features
-=================
-
-   If the package supports it, you can cause programs to be installed
-with an extra prefix or suffix on their names by giving `configure' the
-option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
-
-   Some packages pay attention to `--enable-FEATURE' options to
-`configure', where FEATURE indicates an optional part of the package.
-They may also pay attention to `--with-PACKAGE' options, where PACKAGE
-is something like `gnu-as' or `x' (for the X Window System).  The
-`README' should mention any `--enable-' and `--with-' options that the
-package recognizes.
-
-   For packages that use the X Window System, `configure' can usually
-find the X include and library files automatically, but if it doesn't,
-you can use the `configure' options `--x-includes=DIR' and
-`--x-libraries=DIR' to specify their locations.
-
-   Some packages offer the ability to configure how verbose the
-execution of `make' will be.  For these packages, running `./configure
--enable-silent-rules' sets the default to minimal output, which can be
-overridden with `make V=1'; while running `./configure
--disable-silent-rules' sets the default to verbose, which can be
-overridden with `make V=0'.
-
-Particular systems
-==================
-
-   On HP-UX, the default C compiler is not ANSI C compatible.  If GNU
-CC is not installed, it is recommended to use the following options in
-order to use an ANSI C compiler:
-
-     ./configure CC="cc -Ae -D_XOPEN_SOURCE=500"
-
-and if that doesn't work, install pre-built binaries of GCC for HP-UX.
-
-   HP-UX `make' updates targets which have the same time stamps as
-their prerequisites, which makes it generally unusable when shipped
-generated files such as `configure' are involved.  Use GNU `make'
-instead.
-
-   On OSF/1 a.k.a. Tru64, some versions of the default C compiler cannot
-parse its `<wchar.h>' header file.  The option `-nodtk' can be used as
-a workaround.  If GNU CC is not installed, it is therefore recommended
-to try
-
-     ./configure CC="cc"
-
-and if that doesn't work, try
-
-     ./configure CC="cc -nodtk"
-
-   On Solaris, don't put `/usr/ucb' early in your `PATH'.  This
-directory contains several dysfunctional programs; working variants of
-these programs are available in `/usr/bin'.  So, if you need `/usr/ucb'
-in your `PATH', put it _after_ `/usr/bin'.
-
-   On Haiku, software installed for all users goes in `/boot/common',
-not `/usr/local'.  It is recommended to use the following options:
-
-     ./configure --prefix=/boot/common
-
-Specifying the System Type
-==========================
-
-   There may be some features `configure' cannot figure out
-automatically, but needs to determine by the type of machine the package
-will run on.  Usually, assuming the package is built to be run on the
-_same_ architectures, `configure' can figure that out, but if it prints
-a message saying it cannot guess the machine type, give it the
-`--build=TYPE' option.  TYPE can either be a short name for the system
-type, such as `sun4', or a canonical name which has the form:
-
-     CPU-COMPANY-SYSTEM
-
-where SYSTEM can have one of these forms:
-
-     OS
-     KERNEL-OS
-
-   See the file `config.sub' for the possible values of each field.  If
-`config.sub' isn't included in this package, then this package doesn't
-need to know the machine type.
-
-   If you are _building_ compiler tools for cross-compiling, you should
-use the option `--target=TYPE' to select the type of system they will
-produce code for.
-
-   If you want to _use_ a cross compiler, that generates code for a
-platform different from the build platform, you should specify the
-"host" platform (i.e., that on which the generated programs will
-eventually be run) with `--host=TYPE'.
-
-Sharing Defaults
-================
-
-   If you want to set default values for `configure' scripts to share,
-you can create a site shell script called `config.site' that gives
-default values for variables like `CC', `cache_file', and `prefix'.
-`configure' looks for `PREFIX/share/config.site' if it exists, then
-`PREFIX/etc/config.site' if it exists.  Or, you can set the
-`CONFIG_SITE' environment variable to the location of the site script.
-A warning: not all `configure' scripts look for a site script.
-
-Defining Variables
-==================
-
-   Variables not defined in a site shell script can be set in the
-environment passed to `configure'.  However, some packages may run
-configure again during the build, and the customized values of these
-variables may be lost.  In order to avoid this problem, you should set
-them in the `configure' command line, using `VAR=value'.  For example:
-
-     ./configure CC=/usr/local2/bin/gcc
-
-causes the specified `gcc' to be used as the C compiler (unless it is
-overridden in the site shell script).
-
-Unfortunately, this technique does not work for `CONFIG_SHELL' due to
-an Autoconf bug.  Until the bug is fixed you can use this workaround:
-
-     CONFIG_SHELL=/bin/bash /bin/bash ./configure CONFIG_SHELL=/bin/bash
-
-`configure' Invocation
-======================
-
-   `configure' recognizes the following options to control how it
-operates.
-
-`--help'
-`-h'
-     Print a summary of all of the options to `configure', and exit.
-
-`--help=short'
-`--help=recursive'
-     Print a summary of the options unique to this package's
-     `configure', and exit.  The `short' variant lists options used
-     only in the top level, while the `recursive' variant lists options
-     also present in any nested packages.
-
-`--version'
-`-V'
-     Print the version of Autoconf used to generate the `configure'
-     script, and exit.
-
-`--cache-file=FILE'
-     Enable the cache: use and save the results of the tests in FILE,
-     traditionally `config.cache'.  FILE defaults to `/dev/null' to
-     disable caching.
-
-`--config-cache'
-`-C'
-     Alias for `--cache-file=config.cache'.
-
-`--quiet'
-`--silent'
-`-q'
-     Do not print messages saying which checks are being made.  To
-     suppress all normal output, redirect it to `/dev/null' (any error
-     messages will still be shown).
-
-`--srcdir=DIR'
-     Look for the package's source code in directory DIR.  Usually
-     `configure' can determine that directory automatically.
-
-`--prefix=DIR'
-     Use DIR as the installation prefix.  *note Installation Names::
-     for more details, including other options available for fine-tuning
-     the installation locations.
-
-`--no-create'
-`-n'
-     Run the configure checks, but stop before creating any output
-     files.
-
-`configure' also accepts some other, not widely useful, options.  Run
-`configure --help' for more details.
-
@@ -1,20 +0,0 @@
-
-AM_CFLAGS = @BUILD_CFLAGS@ 
-lib_LTLIBRARIES = libsqlite3.la
-libsqlite3_la_SOURCES = sqlite3.c
-libsqlite3_la_LDFLAGS = -no-undefined -version-info 8:6:8
-
-bin_PROGRAMS = sqlite3
-sqlite3_SOURCES = shell.c sqlite3.h
-EXTRA_sqlite3_SOURCES = sqlite3.c
-sqlite3_LDADD = @EXTRA_SHELL_OBJ@ @READLINE_LIBS@
-sqlite3_DEPENDENCIES = @EXTRA_SHELL_OBJ@
-sqlite3_CFLAGS = $(AM_CFLAGS) -DSQLITE_ENABLE_EXPLAIN_COMMENTS -DSQLITE_DQS=0 -DSQLITE_ENABLE_DBPAGE_VTAB -DSQLITE_ENABLE_STMTVTAB -DSQLITE_ENABLE_DBSTAT_VTAB $(SHELL_CFLAGS)
-
-include_HEADERS = sqlite3.h sqlite3ext.h
-
-EXTRA_DIST = sqlite3.1 tea Makefile.msc sqlite3.rc sqlite3rc.h README.txt Replace.cs Makefile.fallback
-pkgconfigdir = ${libdir}/pkgconfig
-pkgconfig_DATA = sqlite3.pc
-
-man_MANS = sqlite3.1
@@ -0,0 +1,264 @@
+########################################################################
+# This is a main makefile for the "autoconf" bundle of SQLite. This is
+# a trimmed-down version of the canonical makefile, devoid of most
+# documentation. For the full docs, see /main.mk in the canonical
+# source tree.
+#
+# Maintenance reminders:
+#
+# - To keep this working with an out-of-tree build, be sure to prefix
+#   input file names with $(TOP)/ where appropriate (which is most
+#   places).
+#
+# - The original/canonical recipes can be found in /main.mk in the
+#   canonical source tree.
+all:
+
+TOP = @abs_top_srcdir@
+
+PACKAGE_VERSION = @PACKAGE_VERSION@
+
+#
+# Filename extensions for binaries and libraries
+#
+B.exe = @BUILD_EXEEXT@
+T.exe = @TARGET_EXEEXT@
+B.dll = @BUILD_DLLEXT@
+T.dll = @TARGET_DLLEXT@
+B.lib = @BUILD_LIBEXT@
+T.lib = @TARGET_LIBEXT@
+
+#
+# Autotools-compatibility dirs
+#
+prefix      = @prefix@
+datadir     = @datadir@
+mandir      = @mandir@
+includedir  = @includedir@
+exec_prefix = @exec_prefix@
+bindir      = @bindir@
+libdir      = @libdir@
+
+#
+# Required binaries
+#
+INSTALL = @BIN_INSTALL@
+AR = @AR@
+AR.flags = cr
+CC = @CC@
+
+
+ENABLE_LIB_SHARED = @ENABLE_LIB_SHARED@
+ENABLE_LIB_STATIC = @ENABLE_LIB_STATIC@
+
+CFLAGS = @CFLAGS@ @CPPFLAGS@
+#
+# $(LDFLAGS.configure) represents any LDFLAGS=... the client passes to
+# configure. See main.mk.
+#
+LDFLAGS.configure = @LDFLAGS@
+
+CFLAGS.core = @SH_CFLAGS@
+LDFLAGS.shlib = @SH_LDFLAGS@
+LDFLAGS.zlib = @LDFLAGS_ZLIB@
+LDFLAGS.math = @LDFLAGS_MATH@
+LDFLAGS.rpath = @LDFLAGS_RPATH@
+LDFLAGS.pthread = @LDFLAGS_PTHREAD@
+LDFLAGS.dlopen = @LDFLAGS_DLOPEN@
+LDFLAGS.readline = @LDFLAGS_READLINE@
+CFLAGS.readline = @CFLAGS_READLINE@
+LDFLAGS.rt = @LDFLAGS_RT@
+LDFLAGS.icu = @LDFLAGS_ICU@
+CFLAGS.icu = @CFLAGS_ICU@
+
+# When cross-compiling, we need to avoid the -s flag because it only
+# works on the build host's platform.
+INSTALL.strip.1 = $(INSTALL)
+INSTALL.strip.0 = $(INSTALL) -s
+INSTALL.strip   = $(INSTALL.strip.@IS_CROSS_COMPILING@)
+INSTALL.noexec  = $(INSTALL) -m 0644
+
+install-dir.bin = $(DESTDIR)$(bindir)
+install-dir.lib = $(DESTDIR)$(libdir)
+install-dir.include = $(DESTDIR)$(includedir)
+install-dir.pkgconfig = $(DESTDIR)$(libdir)/pkgconfig
+install-dir.man1 = $(DESTDIR)$(mandir)/man1
+install-dir.all = $(install-dir.bin) $(install-dir.include) \
+  $(install-dir.lib) $(install-dir.man1) \
+  $(install-dir.pkgconfig)
+$(install-dir.all):
+	@if [ ! -d "$@" ]; then set -x; $(INSTALL) -d "$@"; fi
+# ^^^^ on some platforms, install -d fails if the target already exists.
+
+
+#
+# Vars with the AS_ prefix are specifically related to AutoSetup.
+#
+# AS_AUTO_DEF is the main configure script.
+#
+AS_AUTO_DEF = $(TOP)/auto.def
+
+#
+# Shell commands to re-run $(TOP)/configure with the same args it was
+# invoked with to produce this makefile.
+#
+AS_AUTORECONFIG = @SQLITE_AUTORECONFIG@
+Makefile: $(TOP)/Makefile.in $(AS_AUTO_DEF)
+	$(AS_AUTORECONFIG)
+	@touch $@
+
+sqlite3.pc: $(TOP)/sqlite3.pc.in $(AS_AUTO_DEF)
+	$(AS_AUTORECONFIG)
+	@touch $@
+
+sqlite_cfg.h: $(AS_AUTO_DEF)
+	$(AS_AUTORECONFIG)
+	@touch $@
+
+#
+# CFLAGS for sqlite3$(T.exe)
+#
+SHELL_OPT ?= @OPT_SHELL@
+
+#
+# Library-level feature flags
+#
+OPT_FEATURE_FLAGS = @OPT_FEATURE_FLAGS@
+
+LDFLAGS.libsqlite3.soname = @LDFLAGS_LIBSQLITE3_SONAME@
+# soname: see https://sqlite.org/src/forumpost/5a3b44f510df8ded
+LDFLAGS.libsqlite3.os-specific = @LDFLAGS_MAC_CVERSION@ @LDFLAGS_OUT_IMPLIB@
+# os-specific: see
+# - https://sqlite.org/forum/forumpost/9dfd5b8fd525a5d7
+# - https://sqlite.org/forum/forumpost/0c7fc097b2
+
+LDFLAGS.libsqlite3 = \
+  $(LDFLAGS.rpath) $(LDFLAGS.pthread) \
+  $(LDFLAGS.math) $(LDFLAGS.dlopen) \
+  $(LDFLAGS.zlib) $(LDFLAGS.icu) \
+  $(LDFLAGS.rt) $(LDFLAGS.configure)
+CFLAGS.libsqlite3 = -I. $(CFLAGS.core) $(CFLAGS.icu) $(OPT_FEATURE_FLAGS)
+
+sqlite3.o: $(TOP)/sqlite3.h $(TOP)/sqlite3.c
+	$(CC) -c $(TOP)/sqlite3.c -o $@ $(CFLAGS) $(CFLAGS.libsqlite3)
+
+libsqlite3.LIB = libsqlite3$(T.lib)
+libsqlite3.SO = libsqlite3$(T.dll)
+
+$(libsqlite3.SO): sqlite3.o
+	$(CC) -o $@  sqlite3.o $(LDFLAGS.shlib) \
+		$(LDFLAGS) $(LDFLAGS.libsqlite3) \
+		$(LDFLAGS.libsqlite3.os-specific) $(LDFLAGS.libsqlite3.soname)
+all: $(libsqlite3.SO)
+
+$(libsqlite3.LIB): sqlite3.o
+	$(AR) $(AR.flags) $@ sqlite3.o
+all: $(libsqlite3.LIB)
+
+install-so-1: $(install-dir.lib) $(libsqlite3.SO)
+	$(INSTALL) $(libsqlite3.SO) "$(install-dir.lib)"
+	@if [ -f $(libsqlite3.SO).a ]; then \
+		$(INSTALL) $(libsqlite3.SO).a "$(install-dir.lib)"; \
+	fi
+	@echo "Setting up $(libsqlite3.SO) version symlinks..."; \
+	if [ x.dll = x$(T.dll) ]; then \
+		echo "No library symlinks needed on this platform"; \
+	elif [ x.dylib = x$(T.dll) ]; then \
+		cd "$(install-dir.lib)" || exit $$?; \
+		rm -f libsqlite3.0$(T.dll) libsqlite3.$(PACKAGE_VERSION)$(T.dll) || exit $$?; \
+		dllname=libsqlite3.$(PACKAGE_VERSION)$(T.dll); \
+		mv $(libsqlite3.SO) $$dllname || exit $$?; \
+		ln -s $$dllname $(libsqlite3.SO) || exit $$?; \
+		ln -s $$dllname libsqlite3.0$(T.dll) || exit $$?; \
+		ls -la $$dllname $(libsqlite3.SO) libsqlite3.0$(T.dll); \
+	else \
+		cd "$(install-dir.lib)" || exit $$?; \
+		rm -f $(libsqlite3.SO).0 $(libsqlite3.SO).$(PACKAGE_VERSION) || exit $$?; \
+		mv $(libsqlite3.SO) $(libsqlite3.SO).$(PACKAGE_VERSION) || exit $$?; \
+		ln -s $(libsqlite3.SO).$(PACKAGE_VERSION) $(libsqlite3.SO) || exit $$?; \
+		ln -s $(libsqlite3.SO).$(PACKAGE_VERSION) $(libsqlite3.SO).0 || exit $$?; \
+		ls -la $(libsqlite3.SO) $(libsqlite3.SO).[a03]*; \
+		if [ -e $(libsqlite3.SO).0.8.6 ]; then \
+			echo "ACHTUNG: legacy libtool-compatible install found. Re-linking it..."; \
+			rm -f libsqlite3.la $(libsqlite3.SO).0.8.6 || exit $$?; \
+			ln -s $(libsqlite3.SO).$(PACKAGE_VERSION) $(libsqlite3.SO).0.8.6 || exit $$?; \
+			ls -la $(libsqlite3.SO).0.8.6; \
+		elif [ x1 = "x$(INSTALL_SO_086_LINK)" ]; then \
+			echo "ACHTUNG: installing legacy libtool-style links because INSTALL_SO_086_LINK=1"; \
+			rm -f libsqlite3.la $(libsqlite3.SO).0.8.6 || exit $$?; \
+			ln -s $(libsqlite3.SO).$(PACKAGE_VERSION) $(libsqlite3.SO).0.8.6 || exit $$?; \
+			ls -la $(libsqlite3.SO).0.8.6; \
+		fi; \
+	fi
+
+install-so-0 install-so-:
+install-so: install-so-$(ENABLE_LIB_SHARED)
+install: install-so
+
+install-lib-1: $(install-dir.lib) $(libsqlite3.LIB)
+	$(INSTALL.noexec) $(libsqlite3.LIB) "$(install-dir.lib)"
+install-lib-0 install-lib-:
+install-lib: install-lib-$(ENABLE_LIB_STATIC)
+install: install-lib
+
+
+# Flags to link the shell app either directly against sqlite3.c
+# (ENABLE_STATIC_SHELL==1) or libsqlite3.so (ENABLE_STATIC_SHELL==0).
+#
+ENABLE_STATIC_SHELL = @ENABLE_STATIC_SHELL@
+sqlite3-shell-link-flags.1 = $(TOP)/sqlite3.c $(LDFLAGS.libsqlite3)
+sqlite3-shell-link-flags.0 = -L. -lsqlite3 $(LDFLAGS.zlib)
+sqlite3-shell-deps.1 = $(TOP)/sqlite3.c
+sqlite3-shell-deps.0 = $(libsqlite3.SO)
+sqlite3$(T.exe): $(TOP)/shell.c $(sqlite3-shell-deps.$(ENABLE_STATIC_SHELL))
+	$(CC) -o $@ \
+		$(TOP)/shell.c $(sqlite3-shell-link-flags.$(ENABLE_STATIC_SHELL)) \
+		-I. $(OPT_FEATURE_FLAGS) $(SHELL_OPT) \
+		$(CFLAGS) $(CFLAGS.readline) $(CFLAGS.icu) \
+		$(LDFLAGS) $(LDFLAGS.readline)
+
+all: sqlite3$(T.exe)
+
+install-shell: sqlite3$(T.exe) $(install-dir.bin)
+	$(INSTALL.strip) sqlite3$(T.exe) "$(install-dir.bin)"
+install: install-shell
+
+install-headers: $(TOP)/sqlite3.h $(install-dir.include)
+	$(INSTALL.noexec) $(TOP)/sqlite3.h $(TOP)/sqlite3ext.h "$(install-dir.include)"
+install: install-headers
+
+install-pc: sqlite3.pc $(install-dir.pkgconfig)
+	$(INSTALL.noexec) sqlite3.pc "$(install-dir.pkgconfig)"
+install: install-pc
+
+install-man1: $(TOP)/sqlite3.1 $(install-dir.man1)
+	$(INSTALL.noexec) $(TOP)/sqlite3.1 "$(install-dir.man1)"
+install: install-man1
+
+clean:
+	rm -f *.o sqlite3$(T.exe)
+	rm -f $(libsqlite3.LIB) $(libsqlite3.SO) $(libsqlite3.SO).a
+
+distclean: clean
+	rm -f jimsh0$(T.exe) config.* sqlite3.pc sqlite_cfg.h Makefile
+
+DIST_FILES := \
+  README.txt VERSION \
+  auto.def autosetup configure tea \
+  sqlite3.h sqlite3.c shell.c sqlite3ext.h \
+  Makefile.in Makefile.msc Makefile.fallback \
+  sqlite3.rc sqlite3rc.h Replace.cs \
+  sqlite3.pc.in sqlite3.1
+
+# Maintenance note: dist_name must be sqlite-$(PACKAGE_VERSION) so
+# that tool/mkautoconfamal.sh knows how to find it.
+dist_name = sqlite-$(PACKAGE_VERSION)
+dist_tarball = $(dist_name).tar.gz
+dist:
+	rm -fr $(dist_name)
+	mkdir -p $(dist_name)
+	cp -rp $(DIST_FILES) $(dist_name)/.
+	rm -f $(dist_name)/tea/configure.ac.in
+	tar czf $(dist_tarball) $(dist_name)
+	rm -fr $(dist_name)
+	ls -l $(dist_tarball)
@@ -1087,5 +1087,6 @@ $(LIBRESOBJS):	$(TOP)\sqlite3.rc rcver.vc $(SQLITE3H)

 clean:
 	del /Q *.exp *.lo *.ilk *.lib *.obj *.ncb *.pdb *.sdf *.suo 2>NUL
-	del /Q *.bsc *.def *.cod *.da *.bb *.bbg *.vc gmon.out 2>NUL
+	del /Q *.bsc *.cod *.da *.bb *.bbg *.vc gmon.out 2>NUL
+	del /Q sqlite3.def tclsqlite3.def ctime.c pragma.h 2>NUL
 	del /Q $(SQLITE3EXE) $(SQLITE3DLL) Replace.exe 2>NUL
@@ -1,11 +1,12 @@
-This directory contains components use to build an autoconf-ready package
-of the SQLite amalgamation:  sqlite-autoconf-30XXXXXX.tar.gz
+This directory contains components used to build an autoconf-like
+package of the SQLite amalgamation: sqlite-autoconf-30XXXXXX.tar.gz

-To build the autoconf amalgamation, run from the top-level:
+To build the autoconf amalgamation, run from the top of the canonical
+source tree:

   ./configure
   make amalgamation-tarball

-The amalgamation-tarball target (also available in "main.mk") runs the
-script tool/mkautoconfamal.sh which does the work.  Refer to that script
-for details.
+The amalgamation-tarball target (available in "main.mk") runs the
+script tool/mkautoconfamal.sh which does the work.  Refer to that
+script for details.
@@ -4,7 +4,7 @@ This package contains:
 * the sqlite3.h and sqlite3ext.h header files that define the C-language
   interface to the sqlite3.c library file
 * the shell.c file used to build the sqlite3 command-line shell program
- * autoconf/automake installation infrastucture for building on POSIX
+ * autoconf-like installation infrastucture for building on POSIX
   compliant systems
 * a Makefile.msc, sqlite3.rc, and Replace.cs for building with Microsoft
   Visual C++ on Windows
@@ -19,8 +19,10 @@ using only generic tools and without having to install TCL.  The purpose
 of this package is to provide that capability.

 This package contains a pre-build SQLite amalgamation file "sqlite3.c"
-(and its associated header file "sqlite3.h").  Because the amalgamation
-has been pre-built, no TCL is required.
+(and its associated header file "sqlite3.h").  Because the
+amalgamation has been pre-built, no TCL is required for the code
+generate (the configure script itself is written in TCL but it can use
+the embedded copy of JimTCL).

 REASONS TO USE THE CANONICAL BUILD SYSTEM RATHER THAN THIS PACKAGE
 ==================================================================
@@ -47,14 +49,12 @@ SUMMARY OF HOW TO BUILD USING THIS PACKAGE
 BUILDING ON POSIX
 =================

-The generic installation instructions for autoconf/automake are found
-in the INSTALL file.
+The configure script follows common conventions, making it easy
+to use for anyone who has configured a software tree before.
+It supports a number of build-time flags, the full list of which
+can be seen by running:

-The following SQLite specific boolean options are supported:
-
-  --enable-readline           use readline in shell tool   [default=yes]
-  --enable-threadsafe         build a thread-safe library  [default=yes]
-  --enable-dynamic-extensions support loadable extensions  [default=yes]
+  ./configure --help

 The default value for the CFLAGS variable (options passed to the C
 compiler) includes debugging symbols in the build, resulting in larger
@@ -65,10 +65,11 @@ line like this:

 to produce a smaller installation footprint.

-Other SQLite compilation parameters can also be set using CFLAGS. For
+Many SQLite compilation parameters can be defined by passing flags
+to the configure script. Others may be passed on in the CFLAGS. For
 example:

-  $ CFLAGS="-Os -DSQLITE_THREADSAFE=0" ./configure
+  $ CFLAGS="-Os -DSQLITE_OMIT_DEPRECATED" ./configure


 BUILDING WITH MICROSOFT VISUAL C++
@@ -0,0 +1,29 @@
+#!/do/not/tclsh
+# ^^^ help out editors which guess this file's content type.
+#
+# This is the main autosetup-compatible configure script for the
+# "autoconf" bundle of the SQLite project.
+#
+# This script must be kept compatible with JimTCL, a copy of which is
+# included in this source tree as ./autosetup/jimsh0.c.
+#
+use sqlite-config
+sqlite-config-bootstrap autoconf
+sqlite-check-common-bins
+sqlite-check-common-system-deps
+proj-check-rpath
+sqlite-handle-soname
+sqlite-setup-default-cflags
+sqlite-handle-debug
+sqlite-handle-threadsafe
+sqlite-handle-tempstore
+sqlite-handle-line-editing
+sqlite-handle-load-extension
+sqlite-handle-math
+sqlite-handle-icu
+
+define ENABLE_STATIC_SHELL [opt-bool static-shell]
+define ENABLE_LIB_SHARED [opt-bool shared]
+define ENABLE_LIB_STATIC [opt-bool static]
+
+sqlite-config-finalize
@@ -1,270 +0,0 @@
-
-#-----------------------------------------------------------------------
-# Supports the following non-standard switches.
-#
-#   --enable-threadsafe
-#   --enable-readline
-#   --enable-editline
-#   --enable-static-shell
-#   --enable-dynamic-extensions
-#
-
-AC_PREREQ(2.61)
-AC_INIT(sqlite, --SQLITE-VERSION--, http://www.sqlite.org)
-AC_CONFIG_SRCDIR([sqlite3.c])
-AC_CONFIG_AUX_DIR([.])
-
-# Use automake.
-AM_INIT_AUTOMAKE([foreign])
-
-AC_SYS_LARGEFILE
-
-# Check for required programs.
-AC_PROG_CC
-AC_PROG_LIBTOOL
-AC_PROG_MKDIR_P
-
-# Check for library functions that SQLite can optionally use.
-AC_CHECK_FUNCS([fdatasync usleep fullfsync localtime_r gmtime_r])
-AC_FUNC_STRERROR_R
-
-AC_CONFIG_FILES([Makefile sqlite3.pc])
-BUILD_CFLAGS=
-AC_SUBST(BUILD_CFLAGS)
-
-#-------------------------------------------------------------------------
-# Two options to enable readline compatible libraries: 
-#
-#   --enable-editline
-#   --enable-readline
-#
-# Both are enabled by default. If, after command line processing both are
-# still enabled, the script searches for editline first and automatically
-# disables readline if it is found. So, to use readline explicitly, the
-# user must pass "--disable-editline". To disable command line editing
-# support altogether, "--disable-editline --disable-readline".
-#
-# When searching for either library, check for headers before libraries 
-# as some distros supply packages that contain libraries but not header
-# files, which come as a separate development package.
-#
-AC_ARG_ENABLE(editline, [AS_HELP_STRING([--enable-editline],[use BSD libedit])])
-AC_ARG_ENABLE(readline, [AS_HELP_STRING([--enable-readline],[use readline])])
-
-AS_IF([ test x"$enable_editline" != xno ],[
-  AC_CHECK_HEADERS([editline/readline.h],[
-    sLIBS=$LIBS
-    LIBS=""
-    AC_SEARCH_LIBS([readline],[edit],[
-      AC_DEFINE([HAVE_EDITLINE],1,Define to use BSD editline)
-      READLINE_LIBS="$LIBS -ltinfo"
-      enable_readline=no
-    ],[],[-ltinfo])
-    AS_UNSET(ac_cv_search_readline)
-    LIBS=$sLIBS
-  ])
-])
-
-AS_IF([ test x"$enable_readline" != xno ],[
-  AC_CHECK_HEADERS([readline/readline.h],[
-    sLIBS=$LIBS
-    LIBS=""
-    AC_SEARCH_LIBS(tgetent, termcap curses ncurses ncursesw, [], [])
-    AC_SEARCH_LIBS(readline,[readline edit], [
-      AC_DEFINE([HAVE_READLINE],1,Define to use readline or wrapper)
-      READLINE_LIBS=$LIBS
-    ])
-    LIBS=$sLIBS
-  ])
-])
-
-AC_SUBST(READLINE_LIBS)
-#-----------------------------------------------------------------------
-
-#-----------------------------------------------------------------------
-#   --enable-threadsafe
-#
-AC_ARG_ENABLE(threadsafe, [AS_HELP_STRING(
-  [--enable-threadsafe], [build a thread-safe library [default=yes]])], 
-  [], [enable_threadsafe=yes])
-if test x"$enable_threadsafe" == "xno"; then
-  BUILD_CFLAGS="$BUILD_CFLAGS -DSQLITE_THREADSAFE=0"
-else
-  BUILD_CFLAGS="$BUILD_CFLAGS -D_REENTRANT=1 -DSQLITE_THREADSAFE=1"
-  AC_SEARCH_LIBS(pthread_create, pthread)
-  AC_SEARCH_LIBS(pthread_mutexattr_init, pthread)
-fi
-#-----------------------------------------------------------------------
-
-#-----------------------------------------------------------------------
-#   --enable-dynamic-extensions
-#
-AC_ARG_ENABLE(dynamic-extensions, [AS_HELP_STRING(
-  [--enable-dynamic-extensions], [support loadable extensions [default=yes]])], 
-  [], [enable_dynamic_extensions=yes])
-if test x"$enable_dynamic_extensions" != "xno"; then
-  AC_SEARCH_LIBS(dlopen, dl)
-else
-  BUILD_CFLAGS="$BUILD_CFLAGS -DSQLITE_OMIT_LOAD_EXTENSION=1"
-fi
-AC_MSG_CHECKING([for whether to support dynamic extensions])
-AC_MSG_RESULT($enable_dynamic_extensions)
-#-----------------------------------------------------------------------
-
-#-----------------------------------------------------------------------
-#   --enable-math
-#
-AC_ARG_ENABLE(math, [AS_HELP_STRING(
-  [--enable-math], [SQL math functions [default=yes]])],
-  [], [enable_math=yes])
-AC_MSG_CHECKING([SQL math functions])
-if test x"$enable_math" = "xyes"; then
-  BUILD_CFLAGS="$BUILD_CFLAGS -DSQLITE_ENABLE_MATH_FUNCTIONS"
-  AC_MSG_RESULT([enabled])
-  AC_SEARCH_LIBS(ceil, m)
-else
-  AC_MSG_RESULT([disabled])
-fi
-#-----------------------------------------------------------------------
-
-#-----------------------------------------------------------------------
-#   --enable-fts4
-#
-AC_ARG_ENABLE(fts4, [AS_HELP_STRING(
-  [--enable-fts4], [include fts4 support [default=yes]])], 
-  [], [enable_fts4=yes])
-AC_MSG_CHECKING([FTS4 extension])
-if test x"$enable_fts4" = "xyes"; then
-  BUILD_CFLAGS="$BUILD_CFLAGS -DSQLITE_ENABLE_FTS4"
-  AC_MSG_RESULT([enabled])
-else
-  AC_MSG_RESULT([disabled])
-fi
-#-----------------------------------------------------------------------
-
-#-----------------------------------------------------------------------
-#   --enable-fts3
-#
-AC_ARG_ENABLE(fts3, [AS_HELP_STRING(
-  [--enable-fts3], [include fts3 support [default=no]])], 
-  [], [])
-AC_MSG_CHECKING([FTS3 extension])
-if test x"$enable_fts3" = "xyes" -a x"$enable_fts4" = "xno"; then
-  BUILD_CFLAGS="$BUILD_CFLAGS -DSQLITE_ENABLE_FTS3"
-  AC_MSG_RESULT([enabled])
-else
-  AC_MSG_RESULT([disabled])
-fi
-#-----------------------------------------------------------------------
-
-#-----------------------------------------------------------------------
-#   --enable-fts5
-#
-AC_ARG_ENABLE(fts5, [AS_HELP_STRING(
-  [--enable-fts5], [include fts5 support [default=yes]])], 
-  [], [enable_fts5=yes])
-AC_MSG_CHECKING([FTS5 extension])
-if test x"$enable_fts5" = "xyes"; then
-  AC_MSG_RESULT([enabled])
-  AC_SEARCH_LIBS(log, m)
-  BUILD_CFLAGS="$BUILD_CFLAGS -DSQLITE_ENABLE_FTS5"
-else
-  AC_MSG_RESULT([disabled])
-fi
-#-----------------------------------------------------------------------
-
-#-----------------------------------------------------------------------
-#   --enable-rtree
-#
-AC_ARG_ENABLE(rtree, [AS_HELP_STRING(
-  [--enable-rtree], [include rtree support [default=yes]])], 
-  [], [enable_rtree=yes])
-AC_MSG_CHECKING([RTREE extension])
-if test x"$enable_rtree" = "xyes"; then
-  BUILD_CFLAGS="$BUILD_CFLAGS -DSQLITE_ENABLE_RTREE -DSQLITE_ENABLE_GEOPOLY"
-  AC_MSG_RESULT([enabled])
-else
-  AC_MSG_RESULT([disabled])
-fi
-#-----------------------------------------------------------------------
-
-#-----------------------------------------------------------------------
-#   --enable-session
-#
-AC_ARG_ENABLE(session, [AS_HELP_STRING(
-  [--enable-session], [enable the session extension [default=no]])], 
-  [], [])
-AC_MSG_CHECKING([Session extension])
-if test x"$enable_session" = "xyes"; then
-  BUILD_CFLAGS="$BUILD_CFLAGS -DSQLITE_ENABLE_SESSION -DSQLITE_ENABLE_PREUPDATE_HOOK"
-  AC_MSG_RESULT([enabled])
-else
-  AC_MSG_RESULT([disabled])
-fi
-#-----------------------------------------------------------------------
-
-#-----------------------------------------------------------------------
-#   --enable-debug
-#
-AC_ARG_ENABLE(debug, [AS_HELP_STRING(
-  [--enable-debug], [build with debugging features enabled [default=no]])], 
-  [], [])
-AC_MSG_CHECKING([Build type])
-if test x"$enable_debug" = "xyes"; then
-  BUILD_CFLAGS="$BUILD_CFLAGS -DSQLITE_DEBUG -DSQLITE_ENABLE_SELECTTRACE -DSQLITE_ENABLE_WHERETRACE"
-  CFLAGS="-g -O0"
-  AC_MSG_RESULT([debug])
-else
-  AC_MSG_RESULT([release])
-fi
-#-----------------------------------------------------------------------
-
-#-----------------------------------------------------------------------
-#   --enable-static-shell
-#
-AC_ARG_ENABLE(static-shell, [AS_HELP_STRING(
-  [--enable-static-shell], 
-  [statically link libsqlite3 into shell tool [default=yes]])], 
-  [], [enable_static_shell=yes])
-if test x"$enable_static_shell" = "xyes"; then
-  EXTRA_SHELL_OBJ=sqlite3-sqlite3.$OBJEXT
-else
-  EXTRA_SHELL_OBJ=libsqlite3.la
-fi
-AC_SUBST(EXTRA_SHELL_OBJ)
-#-----------------------------------------------------------------------
-
-AC_CHECK_FUNCS(posix_fallocate)
-AC_CHECK_HEADERS(zlib.h,[
-  AC_SEARCH_LIBS(deflate,z,[BUILD_CFLAGS="$BUILD_CFLAGS -DSQLITE_HAVE_ZLIB"])
-])
-
-AC_SEARCH_LIBS(system,,,[SHELL_CFLAGS="-DSQLITE_NOHAVE_SYSTEM"])
-AC_SUBST(SHELL_CFLAGS)
-
-#-----------------------------------------------------------------------
-# UPDATE: Maybe it's better if users just set CFLAGS before invoking
-# configure. This option doesn't really add much...
-#
-#   --enable-tempstore
-#
-# AC_ARG_ENABLE(tempstore, [AS_HELP_STRING(
-#   [--enable-tempstore], 
-#   [in-memory temporary tables (never, no, yes, always) [default=no]])], 
-#   [], [enable_tempstore=no])
-# AC_MSG_CHECKING([for whether or not to store temp tables in-memory])
-# case "$enable_tempstore" in
-#   never )  TEMP_STORE=0 ;;
-#   no )     TEMP_STORE=1 ;;
-#   always ) TEMP_STORE=3 ;;
-#   yes )    TEMP_STORE=3 ;;
-#   * )
-#     TEMP_STORE=1
-#     enable_tempstore=yes
-#   ;;
-# esac
-# AC_MSG_RESULT($enable_tempstore)
-# AC_SUBST(TEMP_STORE)
-#-----------------------------------------------------------------------
-
-AC_OUTPUT
@@ -19,7 +19,7 @@ dnl	to configure the system for the local environment.
 # so that we create the export library with the dll.
 #-----------------------------------------------------------------------

-AC_INIT([sqlite],[3.48.0])
+AC_INIT([sqlite],[@VERSION@])

 #--------------------------------------------------------------------
 # Call TEA_INIT as the first TEA_ macro to set up initial vars.
@@ -33,12 +33,26 @@ $ ./configure --reference | less
 That will include any docs from any TCL files in the `./autosetup` dir
 which contain certain (simple) markup defined by autosetup.

-This project's own autosetup-related APIs are in [proj.tcl][] or
-[auto.def][].  The former contains helper APIs which are, more or
-less, portable across projects (that file is re-used as-is in other
-projects) and all have a `proj-` name prefix. The latter is the main
-configure script driver and contains related functions which are
-specific to this tree.
+This project's own configuration-related TCL code is spread across the
+following files:
+
+- [proj.tcl][]: project-agnostic utility code for autosetup-driven
+  projects. This file is designed to be shared between this project,
+  other projects managed under the SQLite/Hwaci umbrella
+  (e.g. Fossil), and personal projects of SQLite's developers.  It is
+  essentially an amalgamation of a decade's worth of autosetup-related
+  utility code.
+- [auto.def][]: the primary driver for the `./configure` process.
+  When we talk about "the configure script," we're referring to
+  this file.
+- [sqlite-config.tcl][]: utility code which is too project-specific
+  for `proj.tcl`. We split this out of `auto.def` so that it can be
+  used by both `auto.def` and...
+- [autoconf/auto.def][]: the main driver script for the "autoconf"
+  bundle's configure script. It is essentially a slightly trimmed-down
+  version of the main `auto.def` file. The `autoconf` dir was ported
+  from the Autotools to Autosetup in the 3.49.0 dev cycle but retains
+  the "autoconf" name to minimize downstream disruption.


 <a name="apitips"></a>
@@ -47,9 +61,11 @@ Autosetup API Tips

 This section briefly covers only APIs which are frequently useful in
 day-to-day maintenance and might not be immediately recognized as such
-obvious from a casual perusal of [auto.def][]. The complete docs of
-those with `proj-` prefix can be found in [proj.tcl][]. The others are
-scattered around [the TCL files in ./autosetup](/dir/autosetup).
+obvious from a casual perusal of the relevant TCL files. The complete
+docs of those with `proj-` prefix can be found in [proj.tcl][] and
+those with an `sqlite-` prefix are in [sqlite-config.tcl][]. The
+others are scattered around [the TCL files in
+./autosetup](/dir/autosetup).

 In (mostly) alphabetical order:

@@ -180,6 +196,30 @@ APIs must not use `[file normalize]`, but autosetup provides a
 TCL-only implementation of `[file-normalize]` (note the dash) for
 portable use in the configure script.

+Known TCL Incompatibilities
+------------------------------------------------------------------------
+
+A summary of known incompatibilities in JimTCL
+
+- **CRNL line endings**: prior to 2025-02-05 `fconfigure -translation ...`
+  was a no-op in JimTCL, and it emits CRNL line endings by default on
+  Windows.  Since then, it supports `-translation binary`, which is
+  close enough to `-translation lf` for our purposes. When working
+  with files using the `open` command, it is important to use mode
+  `"rb"` or `"wb"`, as appropriate, so that the output does not get
+  CRNL-mangled on Windows.
+
+- **`file copy`** does not support multiple source files. See
+  [](/info/61f18c96183867fe) for a workaround.
+
+- **Regular expressions**:
+
+  - Patterns treat `\nnn` octal values as back-references (which it
+    does not support). Those can be reformulated as demonstrated in
+    [](/info/aeac23359bb681c0).
+
+  - `regsub` does not support the `\y` flag. A workaround is demonstrated
+    in [](/info/c2e5dd791cce3ec4).

 <a name="conventions"></a>
 Design Conventions
@@ -331,8 +371,10 @@ If autosetup is upgraded and this patch is _not_ applied the invoking

 [Autosetup]: https://msteveb.github.io/autosetup/
 [auto.def]: /file/auto.def
+[autoconf/auto.def]: /file/autoconf/auto.def
 [autosetup-git]: https://github.com/msteveb/autosetup
 [proj.tcl]: /file/autosetup/proj.tcl
+[sqlite-config.tcl]: /file/autosetup/sqlite-config.tcl
 [Makefile.in]: /file/Makefile.in
 [main.mk]: /file/main.mk
 [JimTCL]: https://jim.tcl.tk
@@ -1198,6 +1198,11 @@ int Jim_OpenForRead(const char *filename);
    #define Jim_FileStat _fstat64
    #define Jim_Lseek _lseeki64
    #define O_TEXT _O_TEXT
+    #define O_BINARY _O_BINARY
+    #define Jim_SetMode _setmode
+    #ifndef STDIN_FILENO
+    #define STDIN_FILENO 0
+    #endif

 #else
    #if defined(HAVE_STAT64)
@@ -1864,7 +1869,7 @@ int Jim_tclcompatInit(Jim_Interp *interp)
 "					$f buffering $v\n"
 "				}\n"
 "				-tr* {\n"
-"\n"
+"					$f translation $v\n"
 "				}\n"
 "				default {\n"
 "					return -code error \"fconfigure: unknown option $n\"\n"
@@ -2936,6 +2941,28 @@ static int aio_cmd_buffering(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
    return JIM_OK;
 }

+static int aio_cmd_translation(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
+{
+    enum {OPT_BINARY, OPT_TEXT};
+    static const char * const options[] = {
+        "binary",
+        "text",
+        NULL
+    };
+    int opt;
+
+    if (Jim_GetEnum(interp, argv[0], options, &opt, NULL, JIM_ERRMSG) != JIM_OK) {
+            return JIM_ERR;
+    }
+#if defined(Jim_SetMode)
+    else {
+        AioFile *af = Jim_CmdPrivData(interp);
+        Jim_SetMode(af->fd, opt == OPT_BINARY ? O_BINARY : O_TEXT);
+    }
+#endif
+    return JIM_OK;
+}
+
 static int aio_cmd_readsize(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
 {
    AioFile *af = Jim_CmdPrivData(interp);
@@ -3145,6 +3172,13 @@ static const jim_subcmd_type aio_command_table[] = {
        0,
        2,

+    },
+    {   "translation",
+        "binary|text",
+        aio_cmd_translation,
+        1,
+        1,
+
    },
    {   "readsize",
        "?size?",
@@ -24425,6 +24459,10 @@ int main(int argc, char *const argv[])
        }
        if (retcode != JIM_EXIT) {
            JimSetArgv(interp, 0, NULL);
+            if (!isatty(STDIN_FILENO)) {
+
+                goto eval_stdin;
+            }
            retcode = Jim_InteractivePrompt(interp);
        }
    }
@@ -24447,6 +24485,7 @@ int main(int argc, char *const argv[])
            Jim_SetVariableStr(interp, "argv0", Jim_NewStringObj(interp, argv[1], -1));
            JimSetArgv(interp, argc - 2, argv + 2);
            if (strcmp(argv[1], "-") == 0) {
+eval_stdin:
                retcode = Jim_Eval(interp, "eval [info source [stdin read] stdin 1]");
            } else {
                retcode = Jim_EvalFile(interp, argv[1]);
@@ -114,11 +114,13 @@ proc proj-bold {str} {
 #
 # If the -notice flag it used then it emits using [user-notice], which
 # means its rendering will (A) go to stderr and (B) be delayed until
-# the next time autosetup goes to output a message. If -notice
-# is not used, it will send the message to stdout without delay.
+# the next time autosetup goes to output a message.
 #
 # If the -error flag is provided then it renders the message
 # immediately to stderr and then exits.
+#
+# If neither -notice nor -error are used, the message will be sent to
+# stdout without delay.
 proc proj-indented-notice {args} {
  set fErr ""
  set outFunc "puts"
@@ -126,6 +128,7 @@ proc proj-indented-notice {args} {
    switch -exact -- [lindex $args 0] {
      -error  {
        set args [lassign $args fErr]
+        set outFunc "user-notice"
      }
      -notice {
        set args [lassign $args -]
@@ -181,10 +184,10 @@ proc proj-lshift_ {listVar {count 1}} {

 ########################################################################
 # Expects to receive string input, which it splits on newlines, strips
-# out any lines which begin with an number of whitespace followed by a
-# '#', and returns a value containing the [append]ed results of each
+# out any lines which begin with any number of whitespace followed by
+# a '#', and returns a value containing the [append]ed results of each
 # remaining line with a \n between each.
-proc proj-strip-hash-comments_ {val} {
+proc proj-strip-hash-comments {val} {
  set x {}
  foreach line [split $val \n] {
    if {![string match "#*" [string trimleft $line]]} {
@@ -200,7 +203,7 @@ proc proj-strip-hash-comments_ {val} {
 # A proxy for cc-check-function-in-lib which does not make any global
 # changes to the LIBS define. Returns the result of
 # cc-check-function-in-lib (i.e. true or false).  The resulting linker
-# flags are stored in ${lib_${function}}.
+# flags are stored in the [define] named lib_${function}.
 proc proj-check-function-in-lib {function libs {otherlibs {}}} {
  set found 0
  define-push {LIBS} {
@@ -276,9 +279,9 @@ proc proj-find-executable-path {args} {
 # a binary, sets a define (see below) to the result, and returns the
 # result (an empty string if not found).
 #
-# The define'd name is: if defName is empty then "BIN_X" is used,
-# where X is the upper-case form of $binName with any '-' characters
-# replaced with '_'.
+# The define'd name is: If $defName is not empty, it is used as-is. If
+# $defName is empty then "BIN_X" is used, where X is the upper-case
+# form of $binName with any '-' characters replaced with '_'.
 proc proj-bin-define {binName {defName {}}} {
  set check [proj-find-executable-path -v $binName]
  if {"" eq $defName} {
@@ -760,7 +763,7 @@ proc proj-exe-extension {} {
 # Trivia: for .dylib files, the linker needs the -dynamiclib flag
 # instead of -shared.
 proc proj-dll-extension {} {
-  proc inner {key} {
+  set inner {{key} {
    switch -glob -- [get-define $key] {
      *apple* {
        return ".dylib"
@@ -772,9 +775,9 @@ proc proj-dll-extension {} {
        return ".so"
      }
    }
-  }
-  define BUILD_DLLEXT [inner build]
-  define TARGET_DLLEXT [inner host]
+  }}
+  define BUILD_DLLEXT [apply $inner build]
+  define TARGET_DLLEXT [apply $inner host]
 }

 ########################################################################
@@ -784,18 +787,20 @@ proc proj-dll-extension {} {
 # BUILD_LIBEXT and TARGET_LIBEXT to the conventional static library
 # extension for the being-built-on resp. the target platform.
 proc proj-lib-extension {} {
-  proc inner {key} {
+  set inner {{key} {
    switch -glob -- [get-define $key] {
      *-*-ming* - *-*-cygwin - *-*-msys {
-        return ".lib"
+        return ".a"
+        # ^^^ this was ".lib" until 2025-02-07. See
+        # https://sqlite.org/forum/forumpost/02db2d4240
      }
      default {
        return ".a"
      }
    }
-  }
-  define BUILD_LIBEXT [inner build]
-  define TARGET_LIBEXT [inner host]
+  }}
+  define BUILD_LIBEXT [apply $inner build]
+  define TARGET_LIBEXT [apply $inner host]
 }

 ########################################################################
@@ -850,16 +855,16 @@ proc proj-affirm-files-exist {args} {
 # If the given directory is found, it expects to find emsdk_env.sh in
 # that directory, as well as the emcc compiler somewhere under there.
 #
-# If the --with-emsdk flag is explicitly provided and the SDK is not
-# found then a fatal error is generated, otherwise failure to find the
-# SDK is not fatal.
+# If the --with-emsdk[=DIR] flag is explicitly provided and the SDK is
+# not found then a fatal error is generated, otherwise failure to find
+# the SDK is not fatal.
 #
 # Defines the following:
 #
-# - EMSDK_HOME = top dir of the emsdk or "".
-# - EMSDK_ENV_SH = path to EMSDK_HOME/emsdk_env.sh or ""
-# - BIN_EMCC = $EMSDK_HOME/upstream/emscripten/emcc or ""
 # - HAVE_EMSDK = 0 or 1 (this function's return value)
+# - EMSDK_HOME = "" or top dir of the emsdk
+# - EMSDK_ENV_SH = "" or $EMSDK_HOME/emsdk_env.sh
+# - BIN_EMCC = "" or $EMSDK_HOME/upstream/emscripten/emcc
 #
 # Returns 1 if EMSDK_ENV_SH is found, else 0.  If EMSDK_HOME is not empty
 # but BIN_EMCC is then emcc was not found in the EMSDK_HOME, in which
@@ -1119,7 +1124,7 @@ proc proj-dump-defs-json {file args} {
 # that [opt-value canonical] will return X if --alias=X is passed to
 # configure.
 proc proj-xfer-options-aliases {mapping} {
-  foreach {hidden - canonical} [proj-strip-hash-comments_ $mapping] {
+  foreach {hidden - canonical} [proj-strip-hash-comments $mapping] {
    if {[proj-opt-was-provided $hidden]} {
      if {[proj-opt-was-provided $canonical]} {
        proj-fatal "both --$canonical and its alias --$hidden were used. Use only one or the other."
@@ -43,8 +43,13 @@ systems, including MacOS.
      or <https://sqlite.org/tmp/tcl9.0.0.tar.gz>.
      <li>Untar or unzip the source archive.  CD into the "win/" subfolder
          of the source tree.
-      <li>Run: `nmake /f makefile.vc release`
-      <li>Run: `nmake /f makefile.vc INSTALLDIR=c:\Tcl install`
+      <li>Run: `nmake /f makefile.vc INSTALLDIR=c:\Tcl release`
+      <li>Run: `nmake /f makefile.vc INSTALLDIR=c:\Tcl install` <br>
+          Notes:
+          <ol type="i">
+          <li> The previous two `nmake` commands must be run separately.
+          <li> Also, the INSTALLDIR=... argument is required on both.
+          </ol>
      <li><i>Optional:</i> CD to `c:\Tcl\bin` and make a copy of
          `tclsh90.exe` over into just `tclsh.exe`.
      <li><i>Optional:</i>
@@ -4438,7 +4438,7 @@ static int fts3EvalDeferredPhrase(Fts3Cursor *pCsr, Fts3Phrase *pPhrase){
        nDistance = iPrev - nMaxUndeferred;
      }

-      aOut = (char *)sqlite3Fts3MallocZero(nPoslist+FTS3_BUFFER_PADDING);
+      aOut = (char *)sqlite3Fts3MallocZero(((i64)nPoslist)+FTS3_BUFFER_PADDING);
      if( !aOut ){
        sqlite3_free(aPoslist);
        return SQLITE_NOMEM;
@@ -5787,6 +5787,24 @@ static void fts3EvalRestart(
  }
 }

+/*
+** Expression node pExpr is an MSR phrase. This function restarts pExpr
+** so that it is a regular phrase query, not an MSR. SQLITE_OK is returned
+** if successful, or an SQLite error code otherwise.
+*/
+int sqlite3Fts3MsrCancel(Fts3Cursor *pCsr, Fts3Expr *pExpr){
+  int rc = SQLITE_OK;
+  if( pExpr->bEof==0 ){
+    i64 iDocid = pExpr->iDocid;
+    fts3EvalRestart(pCsr, pExpr, &rc);
+    while( rc==SQLITE_OK && pExpr->iDocid!=iDocid ){
+      fts3EvalNextRow(pCsr, pExpr, &rc);
+      if( pExpr->bEof ) rc = FTS_CORRUPT_VTAB;
+    }
+  }
+  return rc;
+}
+
 /*
 ** After allocating the Fts3Expr.aMI[] array for each phrase in the 
 ** expression rooted at pExpr, the cursor iterates through all rows matched
@@ -640,6 +640,7 @@ int sqlite3Fts3MsrIncrNext(
 int sqlite3Fts3EvalPhrasePoslist(Fts3Cursor *, Fts3Expr *, int iCol, char **); 
 int sqlite3Fts3MsrOvfl(Fts3Cursor *, Fts3MultiSegReader *, int *);
 int sqlite3Fts3MsrIncrRestart(Fts3MultiSegReader *pCsr);
+int sqlite3Fts3MsrCancel(Fts3Cursor*, Fts3Expr*);

 /* fts3_tokenize_vtab.c */
 int sqlite3Fts3InitTok(sqlite3*, Fts3Hash *, void(*xDestroy)(void*));
@@ -283,7 +283,7 @@ static int getNextString(
  Fts3Expr *p = 0;
  sqlite3_tokenizer_cursor *pCursor = 0;
  char *zTemp = 0;
-  int nTemp = 0;
+  i64 nTemp = 0;

  const int nSpace = sizeof(Fts3Expr) + sizeof(Fts3Phrase);
  int nToken = 0;
@@ -1586,6 +1586,22 @@ static int fts3ExprTermOffsetInit(Fts3Expr *pExpr, int iPhrase, void *ctx){
  return rc;
 }

+/*
+** If expression pExpr is a phrase expression that uses an MSR query, 
+** restart it as a regular, non-incremental query. Return SQLITE_OK
+** if successful, or an SQLite error code otherwise.
+*/
+static int fts3ExprRestartIfCb(Fts3Expr *pExpr, int iPhrase, void *ctx){
+  TermOffsetCtx *p = (TermOffsetCtx*)ctx;
+  int rc = SQLITE_OK;
+  UNUSED_PARAMETER(iPhrase);
+  if( pExpr->pPhrase && pExpr->pPhrase->bIncr ){
+    rc = sqlite3Fts3MsrCancel(p->pCsr, pExpr);
+    pExpr->pPhrase->bIncr = 0;
+  }
+  return rc;
+}
+
 /*
 ** Implementation of offsets() function.
 */
@@ -1622,6 +1638,12 @@ void sqlite3Fts3Offsets(
  sCtx.iDocid = pCsr->iPrevId;
  sCtx.pCsr = pCsr;

+  /* If a query restart will be required, do it here, rather than later of
+  ** after pointers to poslist buffers that may be invalidated by a restart
+  ** have been saved.  */
+  rc = sqlite3Fts3ExprIterate(pCsr->pExpr, fts3ExprRestartIfCb, (void*)&sCtx);
+  if( rc!=SQLITE_OK ) goto offsets_out;
+
  /* Loop through the table columns, appending offset information to 
  ** string-buffer res for each column.
  */
@@ -778,11 +778,13 @@ static int fts5LeafFirstTermOff(Fts5Data *pLeaf){
 /*
 ** Close the read-only blob handle, if it is open.
 */
-void sqlite3Fts5IndexCloseReader(Fts5Index *p){
+static void fts5IndexCloseReader(Fts5Index *p){
  if( p->pReader ){
+    int rc;
    sqlite3_blob *pReader = p->pReader;
    p->pReader = 0;
-    sqlite3_blob_close(pReader);
+    rc = sqlite3_blob_close(pReader);
+    if( p->rc==SQLITE_OK ) p->rc = rc;
  }
 }

@@ -807,7 +809,7 @@ static Fts5Data *fts5DataRead(Fts5Index *p, i64 iRowid){
      assert( p->pReader==0 );
      p->pReader = pBlob;
      if( rc!=SQLITE_OK ){
-        sqlite3Fts5IndexCloseReader(p);
+        fts5IndexCloseReader(p);
      }
      if( rc==SQLITE_ABORT ) rc = SQLITE_OK;
    }
@@ -5009,6 +5011,14 @@ static int fts5IndexReturn(Fts5Index *p){
  return rc;
 }

+/*
+** Close the read-only blob handle, if it is open.
+*/
+void sqlite3Fts5IndexCloseReader(Fts5Index *p){
+  fts5IndexCloseReader(p);
+  fts5IndexReturn(p);
+}
+
 typedef struct Fts5FlushCtx Fts5FlushCtx;
 struct Fts5FlushCtx {
  Fts5Index *pIdx;
@@ -5196,7 +5206,7 @@ static void fts5DoSecureDelete(
  int iDelKeyOff = 0;       /* Offset of deleted key, if any */

  nIdx = nPg-iPgIdx;
-  aIdx = sqlite3Fts5MallocZero(&p->rc, nIdx+16);
+  aIdx = sqlite3Fts5MallocZero(&p->rc, ((i64)nIdx)+16);
  if( p->rc ) return;
  memcpy(aIdx, &aPg[iPgIdx], nIdx);

@@ -5466,8 +5476,11 @@ static void fts5DoSecureDelete(
 ** This is called as part of flushing a delete to disk in 'secure-delete'
 ** mode. It edits the segments within the database described by argument
 ** pStruct to remove the entries for term zTerm, rowid iRowid.
+**
+** Return SQLITE_OK if successful, or an SQLite error code if an error
+** has occurred. Any error code is also stored in the Fts5Index handle.
 */
-static void fts5FlushSecureDelete(
+static int fts5FlushSecureDelete(
  Fts5Index *p,
  Fts5Structure *pStruct,
  const char *zTerm,
@@ -5512,6 +5525,7 @@ static void fts5FlushSecureDelete(
  }

  fts5MultiIterFree(pIter);
+  return p->rc;
 }


@@ -5595,8 +5609,9 @@ static void fts5FlushOneHash(Fts5Index *p){
            ** using fts5FlushSecureDelete().  */
            if( bSecureDelete ){
              if( eDetail==FTS5_DETAIL_NONE ){
-                if( iOff<nDoclist && pDoclist[iOff]==0x00 ){
-                  fts5FlushSecureDelete(p, pStruct, zTerm, nTerm, iRowid);
+                if( iOff<nDoclist && pDoclist[iOff]==0x00 
+                 && !fts5FlushSecureDelete(p, pStruct, zTerm, nTerm, iRowid)
+                ){
                  iOff++;
                  if( iOff<nDoclist && pDoclist[iOff]==0x00 ){
                    iOff++;
@@ -5605,8 +5620,9 @@ static void fts5FlushOneHash(Fts5Index *p){
                    continue;
                  }
                }
-              }else if( (pDoclist[iOff] & 0x01) ){
-                fts5FlushSecureDelete(p, pStruct, zTerm, nTerm, iRowid);
+              }else if( (pDoclist[iOff] & 0x01) 
+                && !fts5FlushSecureDelete(p, pStruct, zTerm, nTerm, iRowid)
+              ){
                if( p->rc!=SQLITE_OK || pDoclist[iOff]==0x01 ){
                  iOff++;
                  continue;
@@ -5784,7 +5800,7 @@ static Fts5Structure *fts5IndexOptimizeStruct(
    assert( pStruct->aLevel[i].nMerge<=nThis );
  }

-  nByte += (pStruct->nLevel+1) * sizeof(Fts5StructureLevel);
+  nByte += (((i64)pStruct->nLevel)+1) * sizeof(Fts5StructureLevel);
  pNew = (Fts5Structure*)sqlite3Fts5MallocZero(&p->rc, nByte);

  if( pNew ){
@@ -6672,7 +6688,8 @@ static void fts5SetupPrefixIter(
      }
    }

-    pData = fts5IdxMalloc(p, sizeof(*pData)+s.doclist.n+FTS5_DATA_ZERO_PADDING);
+    pData = fts5IdxMalloc(p, sizeof(*pData)
+                             + ((i64)s.doclist.n)+FTS5_DATA_ZERO_PADDING);
    assert( pData!=0 || p->rc!=SQLITE_OK );
    if( pData ){
      pData->p = (u8*)&pData[1];
@@ -6730,7 +6747,7 @@ int sqlite3Fts5IndexBeginWrite(Fts5Index *p, int bDelete, i64 iRowid){
 int sqlite3Fts5IndexSync(Fts5Index *p){
  assert( p->rc==SQLITE_OK );
  fts5IndexFlush(p);
-  sqlite3Fts5IndexCloseReader(p);
+  fts5IndexCloseReader(p);
  return fts5IndexReturn(p);
 }

@@ -6741,11 +6758,10 @@ int sqlite3Fts5IndexSync(Fts5Index *p){
 ** records must be invalidated.
 */
 int sqlite3Fts5IndexRollback(Fts5Index *p){
-  sqlite3Fts5IndexCloseReader(p);
+  fts5IndexCloseReader(p);
  fts5IndexDiscardData(p);
  fts5StructureInvalidate(p);
-  /* assert( p->rc==SQLITE_OK ); */
-  return SQLITE_OK;
+  return fts5IndexReturn(p);
 }

 /*
@@ -6946,6 +6962,16 @@ static void fts5SegIterSetEOF(Fts5SegIter *pSeg){
  pSeg->pLeaf = 0;
 }

+static void fts5IterClose(Fts5IndexIter *pIndexIter){
+  if( pIndexIter ){
+    Fts5Iter *pIter = (Fts5Iter*)pIndexIter;
+    Fts5Index *pIndex = pIter->pIndex;
+    fts5TokendataIterDelete(pIter->pTokenDataIter);
+    fts5MultiIterFree(pIter);
+    fts5IndexCloseReader(pIndex);
+  }
+}
+
 /*
 ** This function appends iterator pAppend to Fts5TokenDataIter pIn and 
 ** returns the result.
@@ -6973,7 +6999,7 @@ static Fts5TokenDataIter *fts5AppendTokendataIter(
    }
  }
  if( p->rc ){
-    sqlite3Fts5IterClose((Fts5IndexIter*)pAppend);
+    fts5IterClose((Fts5IndexIter*)pAppend);
  }else{
    pRet->apIter[pRet->nIter++] = pAppend;
  }
@@ -7186,7 +7212,7 @@ static Fts5Iter *fts5SetupTokendataIter(
      fts5BufferSet(&p->rc, &bSeek, nToken, pToken);
    }
    if( p->rc ){
-      sqlite3Fts5IterClose((Fts5IndexIter*)pNew);
+      fts5IterClose((Fts5IndexIter*)pNew);
      break;
    }

@@ -7251,7 +7277,7 @@ static Fts5Iter *fts5SetupTokendataIter(
    ** not point to any terms that match the query. So delete it and break
    ** out of the loop - all required iterators have been collected.  */
    if( pSmall==0 ){
-      sqlite3Fts5IterClose((Fts5IndexIter*)pNew);
+      fts5IterClose((Fts5IndexIter*)pNew);
      break;
    }

@@ -7380,9 +7406,9 @@ int sqlite3Fts5IndexQuery(
    }

    if( p->rc ){
-      sqlite3Fts5IterClose((Fts5IndexIter*)pRet);
+      fts5IterClose((Fts5IndexIter*)pRet);
      pRet = 0;
-      sqlite3Fts5IndexCloseReader(p);
+      fts5IndexCloseReader(p);
    }

    *ppIter = (Fts5IndexIter*)pRet;
@@ -7632,11 +7658,9 @@ int sqlite3Fts5IndexIterWriteTokendata(
 */
 void sqlite3Fts5IterClose(Fts5IndexIter *pIndexIter){
  if( pIndexIter ){
-    Fts5Iter *pIter = (Fts5Iter*)pIndexIter;
-    Fts5Index *pIndex = pIter->pIndex;
-    fts5TokendataIterDelete(pIter->pTokenDataIter);
-    fts5MultiIterFree(pIter);
-    sqlite3Fts5IndexCloseReader(pIndex);
+    Fts5Index *pIndex = ((Fts5Iter*)pIndexIter)->pIndex;
+    fts5IterClose(pIndexIter);
+    fts5IndexReturn(pIndex);
  }
 }

@@ -8166,7 +8190,7 @@ static int fts5QueryCksum(
      rc = sqlite3Fts5IterNext(pIter);
    }
  }
-  sqlite3Fts5IterClose(pIter);
+  fts5IterClose(pIter);

  *pCksum = cksum;
  return rc;
@@ -8889,7 +8913,7 @@ static void fts5DecodeFunction(
  ** buffer overreads even if the record is corrupt.  */
  n = sqlite3_value_bytes(apVal[1]);
  aBlob = sqlite3_value_blob(apVal[1]);
-  nSpace = n + FTS5_DATA_ZERO_PADDING;
+  nSpace = ((i64)n) + FTS5_DATA_ZERO_PADDING;
  a = (u8*)sqlite3Fts5MallocZero(&rc, nSpace);
  if( a==0 ) goto decode_out;
  if( n>0 ) memcpy(a, aBlob, n);
@@ -3801,8 +3801,8 @@ static int fts5Init(sqlite3 *db){
  ** its entry point to enable the matchinfo() demo.  */
 #ifdef SQLITE_FTS5_ENABLE_TEST_MI
  if( rc==SQLITE_OK ){
-    extern int sqlite3Fts5TestRegisterMatchinfo(sqlite3*);
-    rc = sqlite3Fts5TestRegisterMatchinfo(db);
+    extern int sqlite3Fts5TestRegisterMatchinfoAPI(fts5_api*);
+    rc = sqlite3Fts5TestRegisterMatchinfoAPI(&pGlobal->api);
  }
 #endif

@@ -393,17 +393,13 @@ static void fts5MatchinfoFunc(
  }
 }

-int sqlite3Fts5TestRegisterMatchinfo(sqlite3 *db){
-  int rc;                         /* Return code */
-  fts5_api *pApi;                 /* FTS5 API functions */
+/*
+** Register "matchinfo" with global API object pApi.
+*/
+int sqlite3Fts5TestRegisterMatchinfoAPI(fts5_api *pApi){
+  int rc;

-  /* Extract the FTS5 API pointer from the database handle. The 
-  ** fts5_api_from_db() function above is copied verbatim from the 
-  ** FTS5 documentation. Refer there for details. */
-  rc = fts5_api_from_db(db, &pApi);
-  if( rc!=SQLITE_OK ) return rc;
-
-  /* If fts5_api_from_db() returns NULL, then either FTS5 is not registered
+  /* If fts5_api_from_db() returned NULL, then either FTS5 is not registered
  ** with this database handle, or an error (OOM perhaps?) has occurred.
  **
  ** Also check that the fts5_api object is version 2 or newer.  
@@ -418,4 +414,20 @@ int sqlite3Fts5TestRegisterMatchinfo(sqlite3 *db){
  return rc;
 }

+/*
+** Register "matchinfo" with database handle db.
+*/
+int sqlite3Fts5TestRegisterMatchinfo(sqlite3 *db){
+  int rc;                         /* Return code */
+  fts5_api *pApi;                 /* FTS5 API functions */
+
+  /* Extract the FTS5 API pointer from the database handle. The 
+  ** fts5_api_from_db() function above is copied verbatim from the 
+  ** FTS5 documentation. Refer there for details. */
+  rc = fts5_api_from_db(db, &pApi);
+  if( rc!=SQLITE_OK ) return rc;
+
+  return sqlite3Fts5TestRegisterMatchinfoAPI(pApi);
+}
+
 #endif /* SQLITE_ENABLE_FTS5 */
@@ -193,12 +193,12 @@ static int fts5VocabInitVtab(
    *pzErr = sqlite3_mprintf("wrong number of vtable arguments");
    rc = SQLITE_ERROR;
  }else{
-    int nByte;                      /* Bytes of space to allocate */
+    i64 nByte;                      /* Bytes of space to allocate */
    const char *zDb = bDb ? argv[3] : argv[1];
    const char *zTab = bDb ? argv[4] : argv[3];
    const char *zType = bDb ? argv[5] : argv[4];
-    int nDb = (int)strlen(zDb)+1; 
-    int nTab = (int)strlen(zTab)+1;
+    i64 nDb = strlen(zDb)+1; 
+    i64 nTab = strlen(zTab)+1;
    int eType = 0;
    
    rc = fts5VocabTableType(zType, pzErr, &eType);
@@ -290,5 +290,40 @@ do_faultsim_test 11 -faults oom* -prep {
  faultsim_test_result {0 {}}
 }

+#-------------------------------------------------------------------------
+reset_db
+
+ifcapable foreignkey {
+  do_execsql_test 12.0 {
+    CREATE VIRTUAL TABLE f1 USING fts5(content);
+    CREATE TABLE p1(a INTEGER PRIMARY KEY);
+    CREATE TABLE c1(b REFERENCES p1 DEFERRABLE INITIALLY DEFERRED);
+  }
+
+  faultsim_save_and_close
+
+  do_faultsim_test 11 -faults oom* -prep {
+    faultsim_restore_and_reopen
+    execsql {
+      PRAGMA foreign_keys = 1;
+      BEGIN;
+        INSERT INTO c1 VALUES(123);
+        SAVEPOINT xyz;
+    }
+  } -body {
+    execsql {
+          INSERT INTO f1 VALUES('a b c');
+        ROLLBACK TO xyz;
+      COMMIT;
+    }
+  } -test {
+    execsql { SELECT 123 }
+    faultsim_test_result \
+      {1 {FOREIGN KEY constraint failed}} \
+      {1 {out of memory}} \
+      {1 {constraint failed}}
+  }
+}
+
 finish_test

@@ -520,4 +520,26 @@ do_execsql_test 15.3 {
  {columnsize {1 1} columntext {c d} columntotalsize {2 2} poslist {} tokenize {c d} rowcount 2}
 }

+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 16.0 {
+  CREATE TABLE t1(x);
+  BEGIN EXCLUSIVE;
+}
+
+sqlite3 db2 test.db
+do_test 16.1 { 
+  catchsql { SELECT * FROM t1 } db2
+} {1 {database is locked}}
+
+do_execsql_test 16.2 {
+  ROLLBACK;
+}
+
+do_test 16.3 { 
+  catchsql { SELECT * FROM t1 } db2
+} {0 {}}
+
 finish_test
+
@@ -591,7 +591,6 @@ do_execsql_test 21.2 {
  PRAGMA integrity_check
 } {ok}

-breakpoint
 sqlite3_db_config db DEFENSIVE 1
 do_execsql_test 21.3 {
  CREATE TABLE xyz_notashadow(x, y);
@@ -665,5 +664,26 @@ do_execsql_test 25.0 {
  SELECT fts5_test_poslist(t1) FROM t1('b') ORDER BY rank;
 } {{}}

+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 26.0 {
+  PRAGMA foreign_keys = ON;
+  CREATE TABLE t1(x INTEGER PRIMARY KEY);
+  CREATE TABLE t2(y INTEGER PRIMARY KEY,
+      z INTEGER REFERENCES t1(x) DEFERRABLE INITIALLY DEFERRED
+  );
+  CREATE VIRTUAL TABLE t3 USING fts5(a, b, content='', tokendata=1);
+}
+
+do_execsql_test 26.1 {
+  BEGIN;
+    INSERT INTO t2 VALUES(1,111);
+    INSERT INTO t3 VALUES(3,3);
+    PRAGMA defer_foreign_keys=ON;
+    DELETE FROM t2 WHERE y+1;
+  COMMIT;
+}
+
 finish_test

@@ -199,16 +199,16 @@ public final class CApi {
  }

  private static native sqlite3_backup sqlite3_backup_init(
-    @NotNull long ptrToDbDest, @NotNull String destTableName,
-    @NotNull long ptrToDbSrc, @NotNull String srcTableName
+    @NotNull long ptrToDbDest, @NotNull String destSchemaName,
+    @NotNull long ptrToDbSrc, @NotNull String srcSchemaName
  );

  public static sqlite3_backup sqlite3_backup_init(
-    @NotNull sqlite3 dbDest, @NotNull String destTableName,
-    @NotNull sqlite3 dbSrc, @NotNull String srcTableName
+    @NotNull sqlite3 dbDest, @NotNull String destSchemaName,
+    @NotNull sqlite3 dbSrc, @NotNull String srcSchemaName
  ){
-    return sqlite3_backup_init( dbDest.getNativePointer(), destTableName,
-                                dbSrc.getNativePointer(), srcTableName );
+    return sqlite3_backup_init( dbDest.getNativePointer(), destSchemaName,
+                                dbSrc.getNativePointer(), srcSchemaName );
  }

  private static native int sqlite3_backup_pagecount(@NotNull long ptrToBackup);
@@ -198,7 +198,7 @@ static u8* fromBase64( char *pIn, int ncIn, u8 *pOut ){
      deliberate_fall_through; /* FALLTHRU */
    case 1:
      pOut[0] = (qv>>16) & 0xff;
-      deliberate_fall_through; /* FALLTHRU */
+      break;
    }
    pOut += nbo;
  }
@@ -46,6 +46,11 @@
 ** use O_U8TEXT when writing to the Windows console (or anything
 ** else for which _isatty() returns true) and to use O_BINARY or O_TEXT
 ** for all other output channels.
+**
+** The SQLITE_USE_W32_FOR_CONSOLE_IO macro is also available.  If
+** defined, it forces the use of Win32 APIs for all console I/O, both
+** input and output.  This is necessary for some non-Microsoft run-times
+** that implement stdio differently from Microsoft/Visual-Studio.
 */
 #if defined(SQLITE_U8TEXT_ONLY)
 # define UseWtextForOutput(fd) 1
@@ -148,10 +153,10 @@ char *sqlite3_fgets(char *buf, int sz, FILE *in){
    */
    wchar_t *b1 = sqlite3_malloc( sz*sizeof(wchar_t) );
    if( b1==0 ) return 0;
-#ifndef SQLITE_USE_STDIO_FOR_CONSOLE
+#ifdef SQLITE_USE_W32_FOR_CONSOLE_IO
    DWORD nRead = 0;
    if( IsConsole(in)
-     && ReadConsoleW(GetStdHandle(STD_INPUT_HANDLE), b1, sz, &nRead, 0)
+     && ReadConsoleW(GetStdHandle(STD_INPUT_HANDLE), b1, sz-1, &nRead, 0)
    ){
      b1[nRead] = 0;
    }else
@@ -226,7 +231,7 @@ int sqlite3_fputs(const char *z, FILE *out){
    sz = MultiByteToWideChar(CP_UTF8, 0, z, sz, b1, sz);
    b1[sz] = 0;

-#ifndef SQLITE_STDIO_FOR_CONSOLE
+#ifdef SQLITE_USE_W32_FOR_CONSOLE_IO
    DWORD nWr = 0;
    if( IsConsole(out)
      && WriteConsoleW(GetStdHandle(STD_OUTPUT_HANDLE),b1,sz,&nWr,0)
@@ -236,8 +241,9 @@ int sqlite3_fputs(const char *z, FILE *out){
    }else
 #endif
    {
-      /* For non-console I/O, or if SQLITE_USE_STDIO_FOR_CONSOLE is defined
-      ** then write using the standard library. */
+      /* As long as SQLITE_USE_W32_FOR_CONSOLE_IO is not defined, or for
+      ** non-console I/O even if that macro is defined, write using the
+      ** standard library. */
      _setmode(_fileno(out), _O_U8TEXT);
      if( UseBinaryWText(out) ){
        piecemealOutput(b1, sz, out);
@@ -1033,7 +1033,7 @@ static void vfstraceDlClose(sqlite3_vfs *pVfs, void *pHandle){
  vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData;
  sqlite3_vfs *pRoot = pInfo->pRootVfs;
  vfstraceOnOff(pInfo, VTR_DLCLOSE);
-  vfstrace_printf(pInfo, "%s.xDlOpen()\n", pInfo->zVfsName);
+  vfstrace_printf(pInfo, "%s.xDlClose()\n", pInfo->zVfsName);
  pRoot->xDlClose(pRoot, pHandle);
 }

@@ -285,7 +285,7 @@ do_conflict_test $tn.3.2.3 -tables t2 -sql {
  {FOREIGN_KEY 1}
 }
 do_execsql_test $tn.3.2.4 "SELECT * FROM t2" {}
-do_db2_test $tn.3.2.5 "SELECT * FROM t2" {1 one 2 two 4 five}
+do_db2_test $tn.3.2.5 "SELECT * FROM t2" {4 five}

 # Test UPDATE changesets.
 #
@@ -80,7 +80,7 @@ foreach {tn delrow trans conflictargs conflictret} {
  8   3 1 {FOREIGN_KEY 1} ABORT
 } {

-  set A(OMIT,0)  {1 SQLITE_CONSTRAINT}
+  set A(OMIT,0)  {0 {}}
  set A(OMIT,1)  {0 {}}
  set A(ABORT,0) {1 SQLITE_CONSTRAINT}
  set A(ABORT,1) {1 SQLITE_CONSTRAINT}
@@ -95,7 +95,7 @@ foreach {tn delrow trans conflictargs conflictret} {

  do_test 1.2.$tn.2 { set ::xConflict } $conflictargs

-  set A(OMIT,0)  {0 0}
+  set A(OMIT,0)  {1 1}
  set A(OMIT,1)  {1 1}
  set A(ABORT,0) {0 0}
  set A(ABORT,1) {0 0}
@@ -201,12 +201,16 @@ proc compare_db {db1 db2} {
  foreach tbl $lot1 {
    set col1 [list]
    set col2 [list]
+    set quoted [list]

    $db1 eval "PRAGMA table_info = $tbl" { lappend col1 $name }
-    $db2 eval "PRAGMA table_info = $tbl" { lappend col2 $name }
+    $db2 eval "PRAGMA table_info = $tbl" { 
+      lappend col2 $name 
+      lappend quoted "\"[string map {\" \"\"} $name]\""
+    }
    if {$col1 != $col2} { error "table $tbl schema mismatch" }

-    set sql "SELECT * FROM $tbl ORDER BY [join $col1 ,]"
+    set sql "SELECT * FROM $tbl ORDER BY [join $quoted ,]"
    set data1 [$db1 eval $sql]
    set data2 [$db2 eval $sql]
    if {$data1 != $data2} { 
@@ -0,0 +1,191 @@
+# 2025 Jan 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+
+set testprefix session_gen
+
+
+foreach {otn sct} {
+  1  VIRTUAL
+  2  STORED
+} {
+eval [string map [list %TYPE% $sct] {
+  reset_db
+  set testprefix $testprefix-$otn
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+
+  CREATE TABLE t2(a INTEGER PRIMARY KEY, b AS (c+1) %TYPE%, c);
+
+  CREATE TABLE t3(
+    a, 
+    b AS (a+10) %TYPE%, 
+    c, 
+    d AS (c+1) %TYPE%, 
+    e, 
+    PRIMARY KEY(c, e)
+  ) WITHOUT ROWID;
+
+  CREATE TABLE t4(a AS (c*100) %TYPE%, b INTEGER PRIMARY KEY, c);
+
+  CREATE TABLE t5(x, y);
+}
+
+foreach {tn sql changeset} {
+  
+  0.1 {
+    INSERT INTO t5 VALUES('abc', 'def');
+  } {
+    {INSERT t5 0 X.. {} {i 1 t abc t def}}
+  }
+  0.2 {
+    UPDATE t5 SET y='xyz' WHERE rowid=1;
+  } {
+    {UPDATE t5 0 X.. {i 1 {} {} t def} {{} {} {} {} t xyz}}
+  }
+  0.3 {
+    DELETE FROM t5;
+  } {
+    {DELETE t5 0 X.. {i 1 t abc t xyz} {}}
+  }
+
+  1.1 {
+    INSERT INTO t2 VALUES(1, 2);
+    INSERT INTO t2 VALUES(2, 123);
+  } {
+    {INSERT t2 0 X. {} {i 1 i 2}}
+    {INSERT t2 0 X. {} {i 2 i 123}}
+  }
+  1.2 {
+    UPDATE t2 SET c=456 WHERE a=1
+  } {
+    {UPDATE t2 0 X. {i 1 i 2} {{} {} i 456}}
+  }
+
+  1.3 {
+    DELETE FROM t2 WHERE a=2
+  } {
+    {DELETE t2 0 X. {i 2 i 123} {}}
+  }
+
+  1.4 {
+    UPDATE t2 SET a=15
+  } {
+    {INSERT t2 0 X. {} {i 15 i 456}} 
+    {DELETE t2 0 X. {i 1 i 456} {}}
+  }
+
+  2.1 {
+    INSERT INTO t3 VALUES(5, 6, 7);
+    INSERT INTO t3 VALUES(8, 9, 10);
+  } {
+    {INSERT t3 0 .XX {} {i 8 i 9 i 10}}
+    {INSERT t3 0 .XX {} {i 5 i 6 i 7}}
+  }
+
+  2.2 {
+    UPDATE t3 SET a = 505 WHERE (c, e) = (6, 7);
+  } {
+    {UPDATE t3 0 .XX {i 5 i 6 i 7} {i 505 {} {} {} {}}}
+  }
+
+  2.3 {
+    DELETE FROM t3 WHERE (c, e) = (9, 10);
+  } {
+    {DELETE t3 0 .XX {i 8 i 9 i 10} {}}
+  }
+
+  2.4 {
+    UPDATE t3 SET c=1000
+  } {
+    {DELETE t3 0 .XX {i 505 i 6 i 7} {}}
+    {INSERT t3 0 .XX {} {i 505 i 1000 i 7}}
+  }
+
+  3.1 {
+    INSERT INTO t4 VALUES(100, 100);
+  } {
+    {INSERT t4 0 X. {} {i 100 i 100}}
+  }
+
+} {
+  do_test 1.$tn.1 {
+    sqlite3session S db main
+  S object_config rowid 1
+    S attach *
+    execsql $sql
+  } {}
+
+  do_changeset_test 1.$tn.2 S $changeset
+
+  S delete
+}
+#-------------------------------------------------------------------------
+reset_db
+
+forcedelete test.db2
+sqlite3 db2 test.db2
+
+do_common_sql {
+  CREATE TABLE t0(x INTEGER PRIMARY KEY, y);
+  INSERT INTO t0 VALUES(1, 'one');
+  INSERT INTO t0 VALUES(2, 'two');
+
+  CREATE TABLE t1(a AS (c*10) %TYPE%, b INTEGER PRIMARY KEY, c);
+  INSERT INTO t1 VALUES(1, 5);
+  INSERT INTO t1 VALUES(2, 10);
+  INSERT INTO t1 VALUES(3, 5);
+
+  CREATE TABLE t2(
+    a, b, c AS (a*b) %TYPE%,
+    'k 1', 'k 2', PRIMARY KEY('k 1', 'k 2')
+  ) WITHOUT ROWID;
+  INSERT INTO t2 VALUES('a', 'b', 1, 11);
+  INSERT INTO t2 VALUES('A', 'B', 2, 22);
+  INSERT INTO t2 VALUES('Aa', 'Bb', 3, 33);
+}
+
+foreach {tn sql} {
+  1.1 { INSERT INTO t0 VALUES(4, 15) }
+  1.2 { INSERT INTO t1 VALUES(4, 15) }
+  1.3 { INSERT INTO t2 VALUES(1, 2, 3, 4) }
+
+  2.1 { UPDATE t1 SET c=100 WHERE b=2 }
+  2.2 { UPDATE t2 SET a=11 }
+
+  3.1 { DELETE FROM t2 WHERE (t2.'k 1') = 2 }
+  3.2 { DELETE FROM t1 }
+} {
+  do_test 2.$tn.1 {
+  # execsql { PRAGMA vdbe_listing = 1 } db2
+    do_then_apply_sql $sql
+  } {}
+  do_test 2.$tn.2 {
+    compare_db db db2
+  } {}
+}
+db2 close
+
+}]}
+
+
+
+
+finish_test
@@ -59,7 +59,7 @@ do_execsql_test 1.2 {
 set ::nConflict 0
 proc conflict {args} {
  incr ::nConflict
-  return "OMIT"
+  return "ABORT"
 }

 sqlite3changeset_apply_v2 db $C conflict
@@ -111,6 +111,9 @@ do_execsql_test 1.8 {
 # Check that a changeset that causes an FK violation may not be applied,
 # even if SQLITE_CHANGESETAPPLY_FKNOACTION is specified.
 #
+# UPDATE: Unless the conflict-handler returns OMIT. In that case it can
+# be committed. See test cases 3.* in this file.
+#
 reset_db
 do_execsql_test 2.0 {
  CREATE TABLE p1(a INTEGER PRIMARY KEY, b, c UNIQUE);
@@ -164,5 +167,66 @@ do_execsql_test 2.8 {
  SELECT * FROM c1;
 } {two}

+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 3.0 {
+  CREATE TABLE p1(a INTEGER PRIMARY KEY, b, c UNIQUE);
+  INSERT INTO p1 VALUES(1, 1, 'one');
+  INSERT INTO p1 VALUES(2, 2, 'two');
+
+  CREATE TABLE c1(x REFERENCES p1(c) ON DELETE CASCADE);
+  INSERT INTO c1 VALUES('two');
+}
+
+set ::nConflict 0
+proc conflict {args} {
+  incr ::nConflict
+  return "OMIT"
+}
+
+db_save
+
+set C [changeset_from_sql {
+  DELETE FROM p1 WHERE a=2;
+}]
+
+db_restore_and_reopen
+
+do_test 3.1 {
+  sqlite3changeset_apply_v2 -noaction db $C conflict
+} {}
+do_execsql_test 3.2 {
+  SELECT * FROM p1
+} {1 1 one}
+
+db_restore_and_reopen
+db eval { PRAGMA foreign_keys = 1 }
+
+do_test 3.3 {
+  list [catch { sqlite3changeset_apply_v2 -noaction db $C conflict } msg] $msg
+} {0 {}}
+do_execsql_test 3.4 {
+  SELECT * FROM p1;
+} {1 1 one}
+do_execsql_test 3.5 {
+  SELECT * FROM c1;
+} {two}
+
+db_restore_and_reopen
+db eval { PRAGMA foreign_keys = 1 }
+
+do_test 3.6 {
+  list [catch { 
+    sqlite3changeset_apply_v2 -ignorenoop -noaction db $C conflict 
+  } msg] $msg
+} {0 {}}
+do_execsql_test 3.7 {
+  SELECT * FROM p1;
+} {1 1 one}
+do_execsql_test 3.8 {
+  SELECT * FROM c1;
+} {two}
+
 finish_test

@@ -139,11 +139,13 @@ struct sqlite3_changeset_iter {
 struct SessionTable {
  SessionTable *pNext;
  char *zName;                    /* Local name of table */
-  int nCol;                       /* Number of columns in table zName */
+  int nCol;                       /* Number of non-hidden columns */
+  int nTotalCol;                  /* Number of columns including hidden */
  int bStat1;                     /* True if this is sqlite_stat1 */
  int bRowid;                     /* True if this table uses rowid for PK */
  const char **azCol;             /* Column names */
  const char **azDflt;            /* Default value expressions */
+  int *aiIdx;                     /* Index to pass to xNew/xOld */
  u8 *abPK;                       /* Array of primary key flags */
  int nEntry;                     /* Total number of entries in hash table */
  int nChange;                    /* Size of apChange[] array */
@@ -546,22 +548,22 @@ static int sessionPreupdateHash(
  unsigned int h = 0;             /* Hash value to return */
  int i;                          /* Used to iterate through columns */

+  assert( pTab->nTotalCol==pSession->hook.xCount(pSession->hook.pCtx) );
  if( pTab->bRowid ){
-    assert( pTab->nCol-1==pSession->hook.xCount(pSession->hook.pCtx) );
    h = sessionHashAppendI64(h, iRowid);
  }else{
    assert( *pbNullPK==0 );
-    assert( pTab->nCol==pSession->hook.xCount(pSession->hook.pCtx) );
    for(i=0; i<pTab->nCol; i++){
      if( pTab->abPK[i] ){
        int rc;
        int eType;
        sqlite3_value *pVal;
+        int iIdx = pTab->aiIdx[i];

        if( bNew ){
-          rc = pSession->hook.xNew(pSession->hook.pCtx, i, &pVal);
+          rc = pSession->hook.xNew(pSession->hook.pCtx, iIdx, &pVal);
        }else{
-          rc = pSession->hook.xOld(pSession->hook.pCtx, i, &pVal);
+          rc = pSession->hook.xOld(pSession->hook.pCtx, iIdx, &pVal);
        }
        if( rc!=SQLITE_OK ) return rc;

@@ -898,6 +900,7 @@ static int sessionPreupdateEqual(
      sqlite3_value *pVal;        /* Value returned by preupdate_new/old */
      int rc;                     /* Error code from preupdate_new/old */
      int eType = *a++;           /* Type of value from change record */
+      int iIdx = pTab->aiIdx[iCol];

      /* The following calls to preupdate_new() and preupdate_old() can not
      ** fail. This is because they cache their return values, and by the
@@ -906,10 +909,10 @@ static int sessionPreupdateEqual(
      ** this (that the method has already been called). */
      if( op==SQLITE_INSERT ){
        /* assert( db->pPreUpdate->pNewUnpacked || db->pPreUpdate->aNew ); */
-        rc = pSession->hook.xNew(pSession->hook.pCtx, iCol, &pVal);
+        rc = pSession->hook.xNew(pSession->hook.pCtx, iIdx, &pVal);
      }else{
        /* assert( db->pPreUpdate->pUnpacked ); */
-        rc = pSession->hook.xOld(pSession->hook.pCtx, iCol, &pVal);
+        rc = pSession->hook.xOld(pSession->hook.pCtx, iIdx, &pVal);
      }
      assert( rc==SQLITE_OK );
      (void)rc;                   /* Suppress warning about unused variable */
@@ -1034,9 +1037,11 @@ static int sessionTableInfo(
  const char *zDb,                /* Name of attached database (e.g. "main") */
  const char *zThis,              /* Table name */
  int *pnCol,                     /* OUT: number of columns */
+  int *pnTotalCol,                /* OUT: number of hidden columns */
  const char **pzTab,             /* OUT: Copy of zThis */
  const char ***pazCol,           /* OUT: Array of column names for table */
  const char ***pazDflt,          /* OUT: Array of default value expressions */
+  int **paiIdx,                   /* OUT: Array of xNew/xOld indexes */
  u8 **pabPK,                     /* OUT: Array of booleans - true for PK col */
  int *pbRowid                    /* OUT: True if only PK is a rowid */
 ){
@@ -1051,6 +1056,7 @@ static int sessionTableInfo(
  char **azCol = 0;
  char **azDflt = 0;
  u8 *abPK = 0;
+  int *aiIdx = 0;
  int bRowid = 0;                 /* Set to true to use rowid as PK */

  assert( pazCol && pabPK );
@@ -1058,6 +1064,8 @@ static int sessionTableInfo(
  *pazCol = 0;
  *pabPK = 0;
  *pnCol = 0;
+  if( pnTotalCol ) *pnTotalCol = 0;
+  if( paiIdx ) *paiIdx = 0;
  if( pzTab ) *pzTab = 0;
  if( pazDflt ) *pazDflt = 0;

@@ -1067,9 +1075,9 @@ static int sessionTableInfo(
    if( rc==SQLITE_OK ){
      /* For sqlite_stat1, pretend that (tbl,idx) is the PRIMARY KEY. */
      zPragma = sqlite3_mprintf(
-          "SELECT 0, 'tbl',  '', 0, '', 1     UNION ALL "
-          "SELECT 1, 'idx',  '', 0, '', 2     UNION ALL "
-          "SELECT 2, 'stat', '', 0, '', 0"
+          "SELECT 0, 'tbl',  '', 0, '', 1, 0     UNION ALL "
+          "SELECT 1, 'idx',  '', 0, '', 2, 0     UNION ALL "
+          "SELECT 2, 'stat', '', 0, '', 0, 0"
      );
    }else if( rc==SQLITE_ERROR ){
      zPragma = sqlite3_mprintf("");
@@ -1077,7 +1085,7 @@ static int sessionTableInfo(
      return rc;
    }
  }else{
-    zPragma = sqlite3_mprintf("PRAGMA '%q'.table_info('%q')", zDb, zThis);
+    zPragma = sqlite3_mprintf("PRAGMA '%q'.table_xinfo('%q')", zDb, zThis);
  }
  if( !zPragma ){
    return SQLITE_NOMEM;
@@ -1094,7 +1102,9 @@ static int sessionTableInfo(
  while( SQLITE_ROW==sqlite3_step(pStmt) ){
    nByte += sqlite3_column_bytes(pStmt, 1);          /* name */
    nByte += sqlite3_column_bytes(pStmt, 4);          /* dflt_value */
-    nDbCol++;
+    if( sqlite3_column_int(pStmt, 6)==0 ){            /* !hidden */
+      nDbCol++;
+    }
    if( sqlite3_column_int(pStmt, 5) ) bRowid = 0;    /* pk */
  }
  if( nDbCol==0 ) bRowid = 0;
@@ -1103,7 +1113,7 @@ static int sessionTableInfo(
  rc = sqlite3_reset(pStmt);

  if( rc==SQLITE_OK ){
-    nByte += nDbCol * (sizeof(const char *)*2 + sizeof(u8) + 1 + 1);
+    nByte += nDbCol * (sizeof(const char *)*2 +sizeof(int)+sizeof(u8) + 1 + 1);
    pAlloc = sessionMalloc64(pSession, nByte);
    if( pAlloc==0 ){
      rc = SQLITE_NOMEM;
@@ -1114,8 +1124,8 @@ static int sessionTableInfo(
  if( rc==SQLITE_OK ){
    azCol = (char **)pAlloc;
    azDflt = (char**)&azCol[nDbCol];
-    pAlloc = (u8 *)&azDflt[nDbCol];
-    abPK = (u8 *)pAlloc;
+    aiIdx = (int*)&azDflt[nDbCol];
+    abPK = (u8 *)&aiIdx[nDbCol];
    pAlloc = &abPK[nDbCol];
    if( pzTab ){
      memcpy(pAlloc, zThis, nThis+1);
@@ -1130,27 +1140,32 @@ static int sessionTableInfo(
      azCol[i] = (char*)pAlloc;
      pAlloc += nName+1;
      abPK[i] = 1;
+      aiIdx[i] = -1;
      i++;
    }
    while( SQLITE_ROW==sqlite3_step(pStmt) ){
-      int nName = sqlite3_column_bytes(pStmt, 1);
-      int nDflt = sqlite3_column_bytes(pStmt, 4);
-      const unsigned char *zName = sqlite3_column_text(pStmt, 1);
-      const unsigned char *zDflt = sqlite3_column_text(pStmt, 4);
+      if( sqlite3_column_int(pStmt, 6)==0 ){            /* !hidden */
+        int nName = sqlite3_column_bytes(pStmt, 1);
+        int nDflt = sqlite3_column_bytes(pStmt, 4);
+        const unsigned char *zName = sqlite3_column_text(pStmt, 1);
+        const unsigned char *zDflt = sqlite3_column_text(pStmt, 4);

-      if( zName==0 ) break;
-      memcpy(pAlloc, zName, nName+1);
-      azCol[i] = (char *)pAlloc;
-      pAlloc += nName+1;
-      if( zDflt ){
-        memcpy(pAlloc, zDflt, nDflt+1);
-        azDflt[i] = (char *)pAlloc;
-        pAlloc += nDflt+1;
-      }else{
-        azDflt[i] = 0;
+        if( zName==0 ) break;
+        memcpy(pAlloc, zName, nName+1);
+        azCol[i] = (char *)pAlloc;
+        pAlloc += nName+1;
+        if( zDflt ){
+          memcpy(pAlloc, zDflt, nDflt+1);
+          azDflt[i] = (char *)pAlloc;
+          pAlloc += nDflt+1;
+        }else{
+          azDflt[i] = 0;
+        }
+        abPK[i] = sqlite3_column_int(pStmt, 5);
+        aiIdx[i] = sqlite3_column_int(pStmt, 0);
+        i++;
      }
-      abPK[i] = sqlite3_column_int(pStmt, 5);
-      i++;
+      if( pnTotalCol ) (*pnTotalCol)++;
    }
    rc = sqlite3_reset(pStmt);
  }
@@ -1163,6 +1178,7 @@ static int sessionTableInfo(
    if( pazDflt ) *pazDflt = (const char**)azDflt;
    *pabPK = abPK;
    *pnCol = nDbCol;
+    if( paiIdx ) *paiIdx = aiIdx;
  }else{
    sessionFree(pSession, azCol);
  }
@@ -1194,7 +1210,8 @@ static int sessionInitTable(
    u8 *abPK;
    assert( pTab->azCol==0 || pTab->abPK==0 );
    rc = sessionTableInfo(pSession, db, zDb, 
-        pTab->zName, &pTab->nCol, 0, &pTab->azCol, &pTab->azDflt, &abPK,
+        pTab->zName, &pTab->nCol, &pTab->nTotalCol, 0, &pTab->azCol, 
+        &pTab->azDflt, &pTab->aiIdx, &abPK,
        ((pSession==0 || pSession->bImplicitPK) ? &pTab->bRowid : 0)
    );
    if( rc==SQLITE_OK ){
@@ -1229,15 +1246,17 @@ static int sessionInitTable(
 */
 static int sessionReinitTable(sqlite3_session *pSession, SessionTable *pTab){
  int nCol = 0;
+  int nTotalCol = 0;
  const char **azCol = 0;
  const char **azDflt = 0;
+  int *aiIdx = 0;
  u8 *abPK = 0; 
  int bRowid = 0;

  assert( pSession->rc==SQLITE_OK );

  pSession->rc = sessionTableInfo(pSession, pSession->db, pSession->zDb, 
-      pTab->zName, &nCol, 0, &azCol, &azDflt, &abPK,
+      pTab->zName, &nCol, &nTotalCol, 0, &azCol, &azDflt, &aiIdx, &abPK,
      (pSession->bImplicitPK ? &bRowid : 0)
  );
  if( pSession->rc==SQLITE_OK ){
@@ -1260,8 +1279,10 @@ static int sessionReinitTable(sqlite3_session *pSession, SessionTable *pTab){
        const char **a = pTab->azCol;
        pTab->azCol = azCol;
        pTab->nCol = nCol;
+        pTab->nTotalCol = nTotalCol;
        pTab->azDflt = azDflt;
        pTab->abPK = abPK;
+        pTab->aiIdx = aiIdx;
        azCol = a;
      }
      if( pSession->bEnableSize ){
@@ -1579,7 +1600,7 @@ static int sessionUpdateMaxSize(
      int ii;
      for(ii=0; ii<pTab->nCol; ii++){
        sqlite3_value *p = 0;
-        pSession->hook.xNew(pSession->hook.pCtx, ii, &p);
+        pSession->hook.xNew(pSession->hook.pCtx, pTab->aiIdx[ii], &p);
        sessionSerializeValue(0, p, &nNew);
      }
    }
@@ -1599,8 +1620,9 @@ static int sessionUpdateMaxSize(
      int bChanged = 1;
      int nOld = 0;
      int eType;
+      int iIdx = pTab->aiIdx[ii];
      sqlite3_value *p = 0;
-      pSession->hook.xNew(pSession->hook.pCtx, ii-pTab->bRowid, &p);
+      pSession->hook.xNew(pSession->hook.pCtx, iIdx, &p);
      if( p==0 ){
        return SQLITE_NOMEM;
      }
@@ -1697,11 +1719,11 @@ static void sessionPreupdateOneChange(
  /* Check the number of columns in this xPreUpdate call matches the 
  ** number of columns in the table.  */
  nExpect = pSession->hook.xCount(pSession->hook.pCtx);
-  if( (pTab->nCol-pTab->bRowid)<nExpect ){
+  if( pTab->nTotalCol<nExpect ){
    if( sessionReinitTable(pSession, pTab) ) return;
    if( sessionUpdateChanges(pSession, pTab) ) return;
  }
-  if( (pTab->nCol-pTab->bRowid)!=nExpect ){
+  if( pTab->nTotalCol!=nExpect ){
    pSession->rc = SQLITE_SCHEMA;
    return;
  }
@@ -1758,14 +1780,15 @@ static void sessionPreupdateOneChange(
  
      /* Figure out how large an allocation is required */
      nByte = sizeof(SessionChange);
-      for(i=0; i<(pTab->nCol-pTab->bRowid); i++){
+      for(i=pTab->bRowid; i<pTab->nCol; i++){
+        int iIdx = pTab->aiIdx[i];
        sqlite3_value *p = 0;
        if( op!=SQLITE_INSERT ){
          /* This may fail if the column has a non-NULL default and was added 
          ** using ALTER TABLE ADD COLUMN after this record was created. */
-          rc = pSession->hook.xOld(pSession->hook.pCtx, i, &p);
+          rc = pSession->hook.xOld(pSession->hook.pCtx, iIdx, &p);
        }else if( pTab->abPK[i] ){
-          TESTONLY(int trc = ) pSession->hook.xNew(pSession->hook.pCtx, i, &p);
+          TESTONLY(int trc = ) pSession->hook.xNew(pSession->hook.pCtx,iIdx,&p);
          assert( trc==SQLITE_OK );
        }

@@ -1800,12 +1823,13 @@ static void sessionPreupdateOneChange(
        sessionPutI64(&pC->aRecord[1], iRowid);
        nByte = 9;
      }
-      for(i=0; i<(pTab->nCol-pTab->bRowid); i++){
+      for(i=pTab->bRowid; i<pTab->nCol; i++){
        sqlite3_value *p = 0;
+        int iIdx = pTab->aiIdx[i];
        if( op!=SQLITE_INSERT ){
-          pSession->hook.xOld(pSession->hook.pCtx, i, &p);
+          pSession->hook.xOld(pSession->hook.pCtx, iIdx, &p);
        }else if( pTab->abPK[i] ){
-          pSession->hook.xNew(pSession->hook.pCtx, i, &p);
+          pSession->hook.xNew(pSession->hook.pCtx, iIdx, &p);
        }
        sessionSerializeValue(&pC->aRecord[nByte], p, &nByte);
      }
@@ -2207,7 +2231,8 @@ int sqlite3session_diff(
      int bRowid = 0;
      u8 *abPK;
      const char **azCol = 0;
-      rc = sessionTableInfo(0, db, zFrom, zTbl, &nCol, 0, &azCol, 0, &abPK, 
+      rc = sessionTableInfo(0, db, zFrom, zTbl, 
+          &nCol, 0, 0, &azCol, 0, 0, &abPK, 
          pSession->bImplicitPK ? &bRowid : 0
      );
      if( rc==SQLITE_OK ){
@@ -2531,9 +2556,11 @@ static void sessionAppendIdent(
    char *zOut = (char *)&p->aBuf[p->nBuf];
    const char *zIn = zStr;
    *zOut++ = '"';
-    while( *zIn ){
-      if( *zIn=='"' ) *zOut++ = '"';
-      *zOut++ = *(zIn++);
+    if( zIn!=0 ){
+      while( *zIn ){
+        if( *zIn=='"' ) *zOut++ = '"';
+        *zOut++ = *(zIn++);
+      }
    }
    *zOut++ = '"';
    p->nBuf = (int)((u8 *)zOut - p->aBuf);
@@ -2784,10 +2811,10 @@ static int sessionSelectStmt(
  int rc = SQLITE_OK;
  char *zSql = 0;
  const char *zSep = "";
-  const char *zCols = bRowid ? SESSIONS_ROWID ", *" : "*";
  int nSql = -1;
  int i;

+  SessionBuffer cols = {0, 0, 0};
  SessionBuffer nooptest = {0, 0, 0};
  SessionBuffer pkfield = {0, 0, 0};
  SessionBuffer pkvar = {0, 0, 0};
@@ -2800,9 +2827,16 @@ static int sessionSelectStmt(
    sessionAppendStr(&pkvar, 
        "?1, (CASE WHEN ?2=X'' THEN NULL ELSE ?2 END)", &rc
    );
-    zCols = "tbl, ?2, stat";
+    sessionAppendStr(&cols, "tbl, ?2, stat", &rc);
  }else{
+  #if 0
+    if( bRowid ){
+      sessionAppendStr(&cols, SESSIONS_ROWID, &rc);
+    }
+    #endif
    for(i=0; i<nCol; i++){
+      if( cols.nBuf ) sessionAppendStr(&cols, ", ", &rc);
+      sessionAppendIdent(&cols, azCol[i], &rc);
      if( abPK[i] ){
        sessionAppendStr(&pkfield, zSep, &rc);
        sessionAppendStr(&pkvar, zSep, &rc);
@@ -2820,7 +2854,7 @@ static int sessionSelectStmt(
  if( rc==SQLITE_OK ){
    zSql = sqlite3_mprintf(
        "SELECT %s%s FROM %Q.%Q WHERE (%s) IS (%s)",
-        zCols, (bIgnoreNoop ? (char*)nooptest.aBuf : ""), 
+        (char*)cols.aBuf, (bIgnoreNoop ? (char*)nooptest.aBuf : ""), 
        zDb, zTab, (char*)pkfield.aBuf, (char*)pkvar.aBuf
    );
    if( zSql==0 ) rc = SQLITE_NOMEM;
@@ -2863,6 +2897,7 @@ static int sessionSelectStmt(
  sqlite3_free(nooptest.aBuf);
  sqlite3_free(pkfield.aBuf);
  sqlite3_free(pkvar.aBuf);
+  sqlite3_free(cols.aBuf);
  return rc;
 }

@@ -5203,7 +5238,8 @@ static int sessionChangesetApply(

        sqlite3changeset_pk(pIter, &abPK, 0);
        rc = sessionTableInfo(0, db, "main", zNew, 
-            &sApply.nCol, &zTab, &sApply.azCol, 0, &sApply.abPK, &sApply.bRowid
+            &sApply.nCol, 0, &zTab, &sApply.azCol, 0, 0, 
+            &sApply.abPK, &sApply.bRowid
        );
        if( rc!=SQLITE_OK ) break;
        for(i=0; i<sApply.nCol; i++){
@@ -5284,6 +5320,11 @@ static int sessionChangesetApply(
    }
  }

+  {
+    int rc2 = sqlite3_exec(db, "PRAGMA defer_foreign_keys = 0", 0, 0, 0);
+    if( rc==SQLITE_OK ) rc = rc2;
+  }
+
  if( (flags & SQLITE_CHANGESETAPPLY_NOSAVEPOINT)==0 ){
    if( rc==SQLITE_OK ){
      rc = sqlite3_exec(db, "RELEASE changeset_apply", 0, 0, 0);
@@ -883,19 +883,6 @@ int sqlite3changeset_concat(
  void **ppOut                    /* OUT: Buffer containing output changeset */
 );

-
-/*
-** CAPI3REF: Upgrade the Schema of a Changeset/Patchset
-*/
-int sqlite3changeset_upgrade(
-  sqlite3 *db,
-  const char *zDb,
-  int nIn, const void *pIn,       /* Input changeset */
-  int *pnOut, void **ppOut        /* OUT: Inverse of input */
-);
-
-
-
 /*
 ** CAPI3REF: Changegroup Handle
 **
@@ -32,19 +32,16 @@
 #
 # - Emscripten SDK: https://emscripten.org/docs/getting_started/downloads.html
 # - The bash shell
-# - GNU make, GNU sed, GNU awk, GNU grep (all in the $PATH)
+# - GNU make, GNU sed, GNU awk, GNU grep (all in the $PATH and without
+#   a "g" prefix like they have on some non-GNU systems)
 # - wasm-strip for release builds: https://github.com/WebAssembly/wabt
 # - InfoZip for 'dist' zip file
 ########################################################################
 default: all
 #default: quick
-SHELL := $(firstword $(shell which bash) $(wildcard /usr/local/bin/bash /usr/bin/bash /bin/bash))
-ifeq (,$(SHELL))
-  $(error Cannot find the bash shell)
-endif
 MAKEFILE := $(lastword $(MAKEFILE_LIST))
 CLEAN_FILES :=
-DISTCLEAN_FILES :=
+DISTCLEAN_FILES := config.make
 MAKING_CLEAN := $(if $(filter %clean,$(MAKECMDGOALS)),1,0)
 .PHONY: clean distclean
 clean:
@@ -52,6 +49,67 @@ clean:
 distclean: clean
 	-rm -f $(DISTCLEAN_FILES)

+
+########################################################################
+# Special-case builds for which we require certain pre-conditions
+# which, if not met, may cause warnings or fatal errors in the build.
+# This also affects the default optimization level flags. Note that
+# the fiddle targets are in this list because they are used for
+# generating sqlite.org/fiddle.
+OPTIMIZED_TARGETS := dist snapshot fiddle fiddle.debug
+
+ifeq (1,$(MAKING_CLEAN))
+  bin.wasm-strip := echo "not stripping"
+  bin.wasm-opt := irrelevant
+  bin.emcc := irrelevant
+  bin.bash := irrelevant
+  emcc.version := unknown
+else
+  # Include config.make and perform some bootstrapping...
+  ifeq (,$(wildcard ./config.make))
+    $(error Missing config.make (gets generated by the configure script if the EMSDK is found))
+  endif
+  include ./config.make
+  ifeq (,$(bin.bash))
+    $(error Configure script did not find the bash shell)
+  endif
+  ifeq (,$(bin.emcc))
+    $(error Configure script did not find emcc)
+  endif
+  emcc.version := $(shell $(bin.emcc) --version | sed -n 1p | sed -e 's/^.* \([3-9][^ ]*\) .*$$/\1/;')
+  $(info using emcc version [$(emcc.version)])
+  ifeq (,$(bin.wasm-strip))
+    ####################################################################
+    # We need wasm-strip for release builds (see below for why) but
+    # not strictly for non-release builds.
+    $(info WARNING: *******************************************************************)
+    $(info WARNING: Builds using -Oz will minify WASM-exported names, breaking)
+    $(info WARNING:  _All The Things_. The workaround for that is to build)
+    $(info WARNING: with -g3 (which explodes the file size) and then strip the debug)
+    $(info WARNING: info after compilation, using wasm-strip, to shrink the wasm file.)
+    $(info WARNING: wasm-strip was not found in the PATH so we cannot strip those.)
+    $(info WARNING: If this build uses any optimization level higher than -O1 then)
+    $(info WARNING: the ***resulting JS code WILL NOT BE USABLE***.)
+    $(info WARNING: wasm-strip is part of the wabt package:)
+    $(info WARNING:    https://github.com/WebAssembly/wabt)
+    $(info WARNING: on Ubuntu-like systems it can be installed with:)
+    $(info WARNING:    sudo apt install wabt)
+    $(info WARNING: *******************************************************************)
+    ifneq (,$(filter $(OPTIMIZED_TARGETS),$(MAKECMDGOALS)))
+      $(error Cannot make release-quality binary because wasm-strip is not available.)
+    endif
+    bin.wasm-strip := echo "not wasm-stripping"
+  endif
+  ifeq (,$(filter $(OPTIMIZED_TARGETS),$(MAKECMDGOALS)))
+    $(info ==============================================================)
+    $(info == Development build. Make one of (dist, snapshot) for a)
+    $(info == smaller release build.)
+    $(info ==============================================================)
+  endif
+endif
+# ^^^ end of are-we-MAKING_CLEAN
+maybe-wasm-strip := $(bin.wasm-strip)
+
 ########################################################################
 # JS_BUILD_NAMES exists for documentation purposes only. It enumerates
 # the core build styles:
@@ -107,7 +165,7 @@ dir.wasmfs := $(dir.dout)

 MKDIR.bld := $(dir.tmp)
 $(MKDIR.bld):
-	-mkdir -p $@ $(dir.dout)
+	@mkdir -p $@ $(dir.dout)

 CLEAN_FILES += *~ $(dir.jacc)/*~ $(dir.api)/*~ $(dir.common)/*~ $(dir.fiddle)/*~ \
  $(dir.fiddle-debug)/* $(dir.dout)/* $(dir.tmp)/*
@@ -133,13 +191,15 @@ sqlite3.canonical.c := $(dir.top)/sqlite3.c
 sqlite3.c ?= $(firstword $(wildcard $(dir.top)/sqlite3-see.c) $(sqlite3.canonical.c))
 sqlite3.h := $(dir.top)/sqlite3.h

-ifneq (1,$(MAKING_CLEAN))
-ifeq (,$(shell grep sqlite3_activate_see $(sqlite3.c)))
+ifeq (1,$(MAKING_CLEAN))
  SQLITE_C_IS_SEE := 0
 else
-  SQLITE_C_IS_SEE := 1
-  $(info This is an SEE build)
-endif
+  ifeq (,$(shell grep sqlite3_activate_see $(sqlite3.c)))
+    SQLITE_C_IS_SEE := 0
+  else
+    SQLITE_C_IS_SEE := 1
+    $(info This is an SEE build)
+  endif
 endif

 ########################################################################@
@@ -151,65 +211,6 @@ $(sqlite3.h):
 	$(MAKE) -C $(dir.top) sqlite3.c
 $(sqlite3.c): $(sqlite3.h)

-########################################################################
-# Special-case builds for which we require certain pre-conditions
-# which, if not met, may cause warnings or fatal errors in the build.
-# This also affects the default optimization level flags. Note that
-# the fiddle targets are in this list because they are used for
-# generating sqlite.org/fiddle.
-OPTIMIZED_TARGETS := dist snapshot fiddle fiddle.debug
-
-ifneq (1,$(MAKING_CLEAN))
-  ifeq (,$(filter $(OPTIMIZED_TARGETS),$(MAKECMDGOALS)))
-    $(info ==============================================================)
-    $(info == Development build. Make one of (dist, snapshot) for a)
-    $(info == smaller release build.)
-    $(info ==============================================================)
-  endif
-endif
-
-########################################################################
-# Find emcc (Emscripten compiler)...
-ifeq (1,$(MAKING_CLEAN))
-  emcc.bin := echo
-  emcc.version := unknown
-else
-  emcc.bin := $(dir.tool)/emcc.sh
-  ifeq (,$(wildcard $(emcc.bin)))
-    $(error Configure script did not find emcc.)
-  endif
-  emcc.version := $(shell $(emcc.bin) --version | sed -n 1p | sed -e 's/^.* \([3-9][^ ]*\) .*$$/\1/;')
-  $(info using emcc version [$(emcc.version)])
-endif
-#########################################################################
-# Find wasm-strip, which we need for release builds (see below for
-# why) but not strictly for non-release builds.
-ifeq (1,$(MAKING_CLEAN))
-  wasm-strip-bin := irrelevant
-else
-  wasm-strip.bin ?= $(shell which wasm-strip 2>/dev/null)
-  ifeq (,$(wasm-strip.bin))
-    $(info WARNING: *******************************************************************)
-    $(info WARNING: Builds using -O2/-O3/-Os/-Oz will minify WASM-exported names,)
-    $(info WARNING: breaking _All The Things_. The workaround for that is to build)
-    $(info WARNING: with -g3 (which explodes the file size) and then strip the debug)
-    $(info WARNING: info after compilation, using wasm-strip, to shrink the wasm file.)
-    $(info WARNING: wasm-strip was not found in the PATH so we cannot strip those.)
-    $(info WARNING: If this build uses any optimization level higher than -O1 then)
-    $(info WARNING: the ***resulting JS code WILL NOT BE USABLE***.)
-    $(info WARNING: wasm-strip is part of the wabt package:)
-    $(info WARNING:    https://github.com/WebAssembly/wabt)
-    $(info WARNING: on Ubuntu-like systems it can be installed with:)
-    $(info WARNING:    sudo apt install wabt)
-    $(info WARNING: *******************************************************************)
-    ifneq (,$(filter $(OPTIMIZED_TARGETS),$(MAKECMDGOALS)))
-      $(error Cannot make release-quality binary because wasm-strip is not available.)
-    endif
-    wasm-strip.bin := echo "not wasm-stripping"
-  endif
-endif
-maybe-wasm-strip := $(wasm-strip.bin)
-
 ########################################################################
 # barebones=1 disables all "extraneous" stuff from sqlite3-wasm.c, the
 # goal being to create a WASM file with only the core APIs.
@@ -376,20 +377,7 @@ $(bin.stripccomments): $(bin.stripccomments).c $(MAKEFILE)
 DISTCLEAN_FILES += $(bin.stripccomments)

 ########################################################################
-# bin.mkwb is used for generating some of the makefile code for the
-# various wasm builds. It used to be generated in this makefile via a
-# difficult-to-read/maintain block of $(eval)'d code. Attempts were
-# made to generate it from tcl and bash (shell) but having to escape
-# the $ references in those languages made it just as illegible as the
-# native makefile code. Somewhat surprisingly, moving that code generation
-# to C makes it slightly less illegible than the previous 3 options.
-bin.mkwb := ./mkwasmbuilds
-$(bin.mkwb): $(bin.mkwb).c $(MAKEFILE)
-	$(CC) -o $@ $<
-DISTCLEAN_FILES += $(bin.mkwb)
-
-########################################################################
-# C-PP.FILTER: a $(call)able to transform $(1) to $(2) via:
+# SQLITE.CALL.C-PP.FILTER: a $(call)able to transform $(1) to $(2) via:
 #
 #   ./c-pp -f $(1) -o $(2) $(3)
 #
@@ -419,7 +407,7 @@ DISTCLEAN_FILES += $(bin.mkwb)
 # JS/WASM build. They are solely for use with $(bin.c-pp) itself.
 #
 # -D... flags which should be included in all invocations should be
-# appended to $(C-PP.FILTER.global).
+# appended to $(SQLITE.CALL.C-PP.FILTER.global).
 bin.c-pp := ./c-pp
 $(bin.c-pp): c-pp.c $(sqlite3.c) $(MAKEFILE)
 	$(CC) -O0 -o $@ c-pp.c $(sqlite3.c) '-DCMPP_DEFAULT_DELIM="//#"' -I$(dir.top) \
@@ -427,20 +415,21 @@ $(bin.c-pp): c-pp.c $(sqlite3.c) $(MAKEFILE)
 		-DSQLITE_OMIT_SHARED_CACHE -DSQLITE_OMIT_WAL -DSQLITE_THREADSAFE=0 \
 		-DSQLITE_TEMP_STORE=3
 DISTCLEAN_FILES += $(bin.c-pp)
-C-PP.FILTER.global ?=
+SQLITE.CALL.C-PP.FILTER.global ?=
 ifeq (1,$(SQLITE_C_IS_SEE))
-  C-PP.FILTER.global += -Denable-see
+  SQLITE.CALL.C-PP.FILTER.global += -Denable-see
 endif
-define C-PP.FILTER
+define SQLITE.CALL.C-PP.FILTER
 # Create $2 from $1 using $(bin.c-pp)
 # $1 = Input file: c-pp -f $(1).js
 # $2 = Output file: c-pp -o $(2).js
 # $3 = optional c-pp -D... flags
-$(2): $(1) $$(MAKEFILE) $$(bin.c-pp)
-	$$(bin.c-pp) -f $(1) -o $$@ $(3) $(C-PP.FILTER.global)
+$(2): $(1) $$(MAKEFILE_LIST) $$(bin.c-pp)
+	@mkdir -p $$(dir $$@)
+	$$(bin.c-pp) -f $(1) -o $$@ $(3) $(SQLITE.CALL.C-PP.FILTER.global)
 #CLEAN_FILES += $(2)
 endef
-# /end C-PP.FILTER
+# /end SQLITE.CALL.C-PP.FILTER
 ########################################################################

 # cflags.common = C compiler flags for all builds
@@ -618,7 +607,6 @@ emcc.cflags += -I. -I$(dir.top)
 ########################################################################
 # emcc flags specific to building .js/.wasm files...
 emcc.jsflags := -fPIC
-emcc.jsflags += --minify 0
 emcc.jsflags += --no-entry
 emcc.jsflags += -sWASM_BIGINT=$(emcc.WASM_BIGINT)
 emcc.jsflags += -sMODULARIZE
@@ -631,6 +619,12 @@ emcc.exportedRuntimeMethods := \
 emcc.jsflags += $(emcc.exportedRuntimeMethods)
 emcc.jsflags += -sUSE_CLOSURE_COMPILER=0
 emcc.jsflags += -sIMPORTED_MEMORY
+ifeq (,$(filter -O0,$(emcc_opt)))
+emcc.assert ?= 0
+else
+emcc.assert ?= 2
+endif
+emcc.jsflags += -sASSERTIONS=$(emcc.assert)
 emcc.jsflags += -sSTRICT_JS=0
 # STRICT_JS disabled due to:
 #   https://github.com/emscripten-core/emscripten/issues/18610
@@ -826,7 +820,7 @@ sqlite3-wasmfs.cfiles := $(sqlite3-wasm.cfiles)
 ########################################################################

 ########################################################################
-# SQLITE3.xJS.ESM-EXPORT-DEFAULT is used by mkwasmbuilds.c and the
+# SQLITE.CALL.xJS.ESM-EXPORT-DEFAULT is used by mkwasmbuilds.c and the
 # wasmfs build. $1 is 1 if the build mode needs this workaround
 # (modes: esm, bundler-friendly, node) and 0 if not (vanilla). $2 must
 # be 0 for all builds except sqlite3-wasmfs.mjs, in which case it must
@@ -847,9 +841,9 @@ sqlite3-wasmfs.cfiles := $(sqlite3-wasm.cfiles)
 #
 # Maintenance reminder: Mac sed works differently than GNU sed, so we
 # use awk instead of sed for this.
-define SQLITE3.xJS.ESM-EXPORT-DEFAULT
+define SQLITE.CALL.xJS.ESM-EXPORT-DEFAULT
 if [ x1 = x$(1) ]; then \
-		echo "Fragile workaround for emscripten/issues/18237. See SQLITE3.xJS.ESM-EXPORT-DEFAULT."; \
+		echo "Fragile workaround for emscripten/issues/18237. See SQLITE.CALL.xJS.ESM-EXPORT-DEFAULT."; \
 		{\
 			awk '/^export default/ && !f{f=1; next} 1' $@ > $@.tmp && mv $@.tmp $@; \
 		} || exit $$?; \
@@ -873,14 +867,6 @@ sqlite3-node.mjs := $(dir.dout)/sqlite3-node.mjs
 sqlite3-api-wasmfs.mjs := $(dir.tmp)/sqlite3-api-wasmfs.mjs
 sqlite3-wasmfs.mjs    := $(dir.wasmfs)/sqlite3-wasmfs.mjs
 EXPORTED_FUNCTIONS.fiddle := $(dir.tmp)/EXPORTED_FUNCTIONS.fiddle
-ifneq (1,$(MAKING_CLEAN))
-.wasmbuilds.make: $(bin.mkwb)
-	@rm -f $@
-	$(bin.mkwb) > $@
-	@chmod -w $@
-include .wasmbuilds.make
-endif
-DISTCLEAN_FILES += .wasmbuilds.make

 # The various -D... values used by *.c-pp.js include:
 #
@@ -930,22 +916,47 @@ sqlite3-worker1-promiser.js := $(dir.dout)/sqlite3-worker1-promiser.js
 sqlite3-worker1-promiser.mjs := $(dir.dout)/sqlite3-worker1-promiser.mjs
 sqlite3-worker1-bundler-friendly.mjs := $(dir.dout)/sqlite3-worker1-bundler-friendly.mjs
 sqlite3-worker1-promiser-bundler-friendly.js := $(dir.dout)/sqlite3-worker1-promiser-bundler-friendly.js
-$(eval $(call C-PP.FILTER,$(sqlite3-worker1.js.in),$(sqlite3-worker1.js)))
-$(eval $(call C-PP.FILTER,$(sqlite3-worker1.js.in),$(sqlite3-worker1-bundler-friendly.mjs),\
+
+ifneq (1,$(MAKING_CLEAN))
+# This block MUST come between the above definitions of
+# sqlite3-...js/mjs and the $(eval) calls below this block which use
+# SQLITE.CALL.C-PP.FILTER.
+########################################################################
+# bin.mkwb is used for generating some of the makefile code for the
+# various wasm builds. It used to be generated in this makefile via a
+# difficult-to-read/maintain block of $(eval)'d code. Attempts were
+# made to generate it from tcl and bash (shell) but having to escape
+# the $ references in those languages made it just as illegible as the
+# native makefile code. Somewhat surprisingly, moving that code generation
+# to C makes it slightly less illegible than the previous 3 options.
+bin.mkwb := ./mkwasmbuilds
+$(bin.mkwb): $(bin.mkwb).c $(MAKEFILE)
+	$(CC) -o $@ $<
+DISTCLEAN_FILES += $(bin.mkwb)
+.wasmbuilds.make: $(bin.mkwb)
+	@rm -f $@
+	$(bin.mkwb) > $@
+	@chmod -w $@
+-include .wasmbuilds.make
+endif
+DISTCLEAN_FILES += .wasmbuilds.make
+
+$(eval $(call SQLITE.CALL.C-PP.FILTER,$(sqlite3-worker1.js.in),$(sqlite3-worker1.js)))
+$(eval $(call SQLITE.CALL.C-PP.FILTER,$(sqlite3-worker1.js.in),$(sqlite3-worker1-bundler-friendly.mjs),\
    $(c-pp.D.sqlite3-bundler-friendly)))
-$(eval $(call C-PP.FILTER,$(sqlite3-worker1-promiser.js.in),$(sqlite3-worker1-promiser.js)))
-$(eval $(call C-PP.FILTER,$(sqlite3-worker1-promiser.js.in),\
+$(eval $(call SQLITE.CALL.C-PP.FILTER,$(sqlite3-worker1-promiser.js.in),$(sqlite3-worker1-promiser.js)))
+$(eval $(call SQLITE.CALL.C-PP.FILTER,$(sqlite3-worker1-promiser.js.in),\
    $(sqlite3-worker1-promiser-bundler-friendly.js),\
    $(c-pp.D.sqlite3-bundler-friendly)))
-$(eval $(call C-PP.FILTER,$(sqlite3-worker1-promiser.js.in),$(sqlite3-worker1-promiser.mjs),\
+$(eval $(call SQLITE.CALL.C-PP.FILTER,$(sqlite3-worker1-promiser.js.in),$(sqlite3-worker1-promiser.mjs),\
    -Dtarget=es6-module -Dtarget=es6-bundler-friendly))
 $(sqlite3-bundler-friendly.mjs): $(sqlite3-worker1-bundler-friendly.mjs) \
    $(sqlite3-worker1-promiser-bundler-friendly.js)
-$(eval $(call C-PP.FILTER,demo-worker1-promiser.c-pp.js,demo-worker1-promiser.js))
-$(eval $(call C-PP.FILTER,demo-worker1-promiser.c-pp.js,demo-worker1-promiser.mjs,\
+$(eval $(call SQLITE.CALL.C-PP.FILTER,demo-worker1-promiser.c-pp.js,demo-worker1-promiser.js))
+$(eval $(call SQLITE.CALL.C-PP.FILTER,demo-worker1-promiser.c-pp.js,demo-worker1-promiser.mjs,\
    -Dtarget=es6-module))
-$(eval $(call C-PP.FILTER,demo-worker1-promiser.c-pp.html,demo-worker1-promiser.html))
-$(eval $(call C-PP.FILTER,demo-worker1-promiser.c-pp.html,demo-worker1-promiser-esm.html,\
+$(eval $(call SQLITE.CALL.C-PP.FILTER,demo-worker1-promiser.c-pp.html,demo-worker1-promiser.html))
+$(eval $(call SQLITE.CALL.C-PP.FILTER,demo-worker1-promiser.c-pp.html,demo-worker1-promiser-esm.html,\
    -Dtarget=es6-module))
 all: $(sqlite3-worker1.js) \
    $(sqlite3-worker1-promiser.js) $(sqlite3-worker1-promiser.mjs)
@@ -1042,7 +1053,7 @@ $(speedtest1.js): $(MAKEFILE) $(speedtest1.cfiles) \
    $(pre-post-speedtest1-vanilla.deps) \
    $(EXPORTED_FUNCTIONS.speedtest1)
 	@echo "Building $@ ..."
-	$(emcc.bin) \
+	$(bin.emcc) \
        $(emcc.speedtest1) \
        $(emcc.speedtest1.common) \
        $(emcc.flags.speedtest1-vanilla) $(pre-post-speedtest1-vanilla.flags) \
@@ -1052,6 +1063,7 @@ $(speedtest1.js): $(MAKEFILE) $(speedtest1.cfiles) \
        $(speedtest1.exit-runtime0) \
        -o $@ $(speedtest1.cfiles) -lm
 	$(maybe-wasm-strip) $(speedtest1.wasm)
+	sed -i -e '/^var _sqlite3.*createExportWrapper/d' $@
 	chmod -x $(speedtest1.wasm)
 	ls -la $@ $(speedtest1.wasm)

@@ -1077,10 +1089,10 @@ all: speedtest1
 #  tester1.mjs: cases 3 and 4
 #
 # To create those, we filter tester1.c-pp.js with $(bin.c-pp)...
-$(eval $(call C-PP.FILTER,tester1.c-pp.js,tester1.js))
-$(eval $(call C-PP.FILTER,tester1.c-pp.js,tester1.mjs,$(c-pp.D.sqlite3-esm)))
-$(eval $(call C-PP.FILTER,tester1.c-pp.html,tester1.html))
-$(eval $(call C-PP.FILTER,tester1.c-pp.html,tester1-esm.html,$(c-pp.D.sqlite3-esm)))
+$(eval $(call SQLITE.CALL.C-PP.FILTER,tester1.c-pp.js,tester1.js))
+$(eval $(call SQLITE.CALL.C-PP.FILTER,tester1.c-pp.js,tester1.mjs,$(c-pp.D.sqlite3-esm)))
+$(eval $(call SQLITE.CALL.C-PP.FILTER,tester1.c-pp.html,tester1.html))
+$(eval $(call SQLITE.CALL.C-PP.FILTER,tester1.c-pp.html,tester1-esm.html,$(c-pp.D.sqlite3-esm)))
 tester1: tester1.js tester1.mjs tester1.html tester1-esm.html
 # Note that we do not include $(sqlite3-bundler-friendly.mjs) in this
 # because bundlers are client-specific.
@@ -31,16 +31,20 @@ build:
  use of and is not demonstrated here.

 Browsers will not serve WASM files from file:// URLs, so the test and
-demonstration apps require a web server and that server must include
-the following headers in its response when serving the files:
+demonstration apps require a web server and that server must, for the
+OPFS[^1]-related features, include the following headers in its response
+when serving the files:

    Cross-Origin-Opener-Policy: same-origin
    Cross-Origin-Embedder-Policy: require-corp

-The core library will function without those headers but certain
-features, most notably OPFS storage, will not be available.
+Most functionality will work without those headers but the OPFS[^1]
+storage capability will not be available without them.

 One simple way to get the demo apps up and running on Unix-style
 systems is to install althttpd (https://sqlite.org/althttpd) and run:

    althttpd --enable-sab --page index.html
+
+
+[^1]: https://developer.mozilla.org/en-US/docs/Web/API/File_System_API/Origin_private_file_system
@@ -29,8 +29,16 @@ $ ./emsdk install latest
 $ ./emsdk activate latest
 ```

-The following needs to be run for each shell instance which needs the
-`emcc` compiler:
+(Sidebar: Emscripten updates can and do _change things_, i.e. _break
+things_, so it's considered _required practice_ to test thoroughly
+after upgrading it! Our build process makes no guarantees about which
+Emscripten version(s) will or won't work, but it's important that
+production builds are built using a compatible version. During active
+development, the EMSDK is frequently updated, the goal being to keep
+`sqlite3.wasm` working with "the latest" EMSDK.)
+
+The SQLite configure script will search for the EMSDK. One way
+to ensure that it finds it is:

 ```
 # Activate PATH and other environment variables in the current terminal:
@@ -38,15 +46,27 @@ $ source ./emsdk_env.sh

 $ which emcc
 /path/to/emsdk/upstream/emscripten/emcc
+
+$ ./configure ...
 ```

-Optionally, add that to your login shell's resource file (`~/.bashrc`
-or equivalent).
+Optionally, add that `source` part to your login shell's resource file
+(`~/.bashrc` or equivalent).

-That `env` script needs to be sourced for building this application
-from the top of the sqlite3 build tree:
+Another way is to pass the EMSDK dir to configure:

 ```
+$ ./configure --with-emsdk=/path/to/emsdk
+```
+
+The build tree uses a small wrapper for invoking the `emcc` (the
+Emscripten compiler): `tool/emcc.sh` is generated from
+`tool/emcc.sh.in` using the EMSDK path found by the configure process.
+
+With that in place, the most common build approaches are:
+
+```
+# From the top of the tree:
 $ make fiddle
 ```

@@ -57,7 +77,7 @@ $ cd ext/wasm
 $ make
 ```

-That will generate the a number of files required for a handful of
+Those will generate the a number of files required for a handful of
 test and demo applications which can be accessed via
 `index.html`. WASM content cannot, due to XMLHttpRequest security
 limitations, be loaded if the containing HTML file is opened directly
@@ -68,16 +88,21 @@ needs to be served via an HTTP server.  For example, using
 ```
 $ cd ext/wasm
 $ althttpd --enable-sab --max-age 1 --page index.html
+# Or, more simply, from the ext/wasm dir:
+$ make httpd
 ```

-That will open the system's browser and run the index page, from which
-all of the test and demo applications can be accessed.
+That will open the system's browser and visit the index page, from
+which (almost) all of the test and demo applications can be accessed.
+(`ext/wasm/SQLTester` is not listed in that page because it's only of
+real utility when it's used in conjunction with the project's
+proprietary test suite, which most users don't have access to.)

 Note that when serving this app via [althttpd][], it must be a version
 from 2022-09-26 or newer so that it recognizes the `--enable-sab`
 flag, which causes althttpd to emit two HTTP response headers which
 are required to enable JavaScript's `SharedArrayBuffer` and `Atomics`
-APIs. Those APIs are required in order to enable the OPFS-related
+APIs. Those APIs are required in order to enable the [OPFS][]-related
 features in the apps which use them.

 # Testing on a remote machine that is accessed via SSH
@@ -104,3 +129,4 @@ be tunneled using SSH.
 [emscripten]: https://emscripten.org
 [althttpd]: https://sqlite.org/althttpd
 [SharedArrayBuffer]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/SharedArrayBuffer
+[OPFS]: https://developer.mozilla.org/en-US/docs/Web/API/File_System_API/Origin_private_file_system
@@ -85,17 +85,18 @@ browser client:
  Installs the `sqlite3.vtab` namespace, which contain helpers for use
  by downstream code which creates `sqlite3_module` implementations.
 - **`sqlite3-vfs-opfs.c-pp.js`**\  
-  is an sqlite3 VFS implementation which supports the Origin-Private
-  FileSystem (OPFS) as a storage layer to provide persistent storage
-  for database files in a browser. It requires...
+  is an sqlite3 VFS implementation which supports the [Origin-Private
+  FileSystem (OPFS)][OPFS] as a storage layer to provide persistent
+  storage for database files in a browser. It requires...
    - **`sqlite3-opfs-async-proxy.js`**\  
-      is the asynchronous backend part of the OPFS proxy. It speaks
-      directly to the (async) OPFS API and channels those results back
-      to its synchronous counterpart. This file, because it must be
-      started in its own Worker, is not part of the amalgamation.
+      is the asynchronous backend part of the [OPFS][] proxy. It
+      speaks directly to the (async) OPFS API and channels those
+      results back to its synchronous counterpart. This file, because
+      it must be started in its own Worker, is not part of the
+      amalgamation.
 - **`sqlite3-vfs-opfs-sahpool.c-pp.js`**\  
-  is another sqlite3 VFS supporting the OPFS, but uses a completely
-  different approach that the above-listed one.
+  is another sqlite3 VFS supporting the [OPFS][], but uses a
+  completely different approach that the above-listed one.
 - **`sqlite3-api-cleanup.js`**\  
  The previous files do not immediately extend the library. Instead
  they add callback functions to be called during its
@@ -152,7 +153,7 @@ into the build-generated `sqlite3.js` along with `sqlite3-api.js`.
  flag. This file overwrites the Emscripten-installed
  `sqlite3InitModule()` function with one which, after the module is
  loaded, also initializes the asynchronous parts of the sqlite3
-  module. For example, the OPFS VFS support.
+  module. For example, the [OPFS][] VFS support.

 <a id='c-pp'></a>
 Preprocessing of Source Files
@@ -164,3 +165,6 @@ builds. The preprocessor application itself is in
 [`c-pp.c`](/file/ext/wasm/c-pp.c) and the complete technical details
 of such preprocessing are maintained in
 [`GNUMakefile`](/file/ext/wasm/GNUmakefile).
+
+
+[OPFS]: https://developer.mozilla.org/en-US/docs/Web/API/File_System_API/Origin_private_file_system
@@ -12,6 +12,7 @@
 const toExportForESM =
 //#endif
 (function(){
+  //console.warn("this is extern-post-js");
  /**
     In order to hide the sqlite3InitModule()'s resulting
     Emscripten module from downstream clients (and simplify our
@@ -62,6 +63,16 @@ const toExportForESM =
  globalThis.sqlite3InitModule = function ff(...args){
    //console.warn("Using replaced sqlite3InitModule()",globalThis.location);
    return originalInit(...args).then((EmscriptenModule)=>{
+      //console.warn("originalInit() then() arg =",EmscriptenModule);
+      //console.warn("initModuleState =",initModuleState);
+      EmscriptenModule.runSQLite3PostLoadInit(EmscriptenModule);
+      const s = EmscriptenModule.sqlite3;
+      s.scriptInfo = initModuleState;
+      //console.warn("sqlite3.scriptInfo =",s.scriptInfo);
+      if(ff.__isUnderTest) s.__isUnderTest = true;
+      const f = s.asyncPostInit;
+      delete s.asyncPostInit;
+      const rv = f();
 //#if wasmfs
      if('undefined'!==typeof WorkerGlobalScope &&
         EmscriptenModule['ENVIRONMENT_IS_PTHREAD']){
@@ -74,14 +85,7 @@ const toExportForESM =
        return EmscriptenModule;
      }
 //#endif
-      //console.warn("sqlite3InitModule() returning sqlite3 object.");
-      const s = EmscriptenModule.sqlite3;
-      s.scriptInfo = initModuleState;
-      //console.warn("sqlite3.scriptInfo =",s.scriptInfo);
-      if(ff.__isUnderTest) s.__isUnderTest = true;
-      const f = s.asyncPostInit;
-      delete s.asyncPostInit;
-      return f();
+      return rv;
    }).catch((e)=>{
      console.error("Exception loading sqlite3 module:",e);
      throw e;
@@ -1,4 +1,6 @@
 /* The current function scope was opened via post-js-header.js, which
   gets prepended to this at build-time. This file closes that
   scope. */
-})/*postRun.push(...)*/;
+//console.warn("This is the end of the Module.runSQLite3PostLoadInit handler.");
+}/*Module.runSQLite3PostLoadInit()*/;
+//console.warn("This is the end of the setup of the (pending) Module.runSQLite3PostLoadInit");
@@ -7,22 +7,27 @@
   installs will be run after the WASM module is loaded, at which
   point the sqlite3 JS API bits will get set up.
 */
-if(!Module.postRun) Module.postRun = [];
-Module.postRun.push(function(Module/*the Emscripten-style module object*/){
+Module.runSQLite3PostLoadInit = function(EmscriptenModule/*the Emscripten-style module object*/){
+  /** ^^^ Don't use Module.postRun, as that runs a different time
+      depending on whether this file is built with emcc 3.1.x or
+      4.0.x. This function name is intentionally obnoxiously verbose to
+      ensure that we don't collide with current and future Emscripten
+      symbol names. */
  'use strict';
+  //console.warn("This is the start of Module.runSQLite3PostLoadInit()");
  /* This function will contain at least the following:

-     - post-js-header.js (this file)
+     - post-js-header.js        => this file
     - sqlite3-api-prologue.js  => Bootstrapping bits to attach the rest to
     - common/whwasmutil.js     => Replacements for much of Emscripten's glue
-     - jaccwaby/jaccwabyt.js    => Jaccwabyt (C/JS struct binding)
+     - jaccwabyt/jaccwabyt.js   => Jaccwabyt (C/JS struct binding)
     - sqlite3-api-glue.js      => glues previous parts together
-     - sqlite3-api-oo.js        => SQLite3 OO API #1
+     - sqlite3-api-oo1.js       => SQLite3 OO API #1
     - sqlite3-api-worker1.js   => Worker-based API
     - sqlite3-vfs-helper.c-pp.js  => Utilities for VFS impls
     - sqlite3-vtab-helper.c-pp.js => Utilities for virtual table impls
-     - sqlite3-vfs-opfs.c-pp.js  => OPFS VFS
+     - sqlite3-vfs-opfs.c-pp.js => OPFS VFS
     - sqlite3-vfs-opfs-sahpool.c-pp.js => OPFS SAHPool VFS
     - sqlite3-api-cleanup.js   => final API cleanup
-     - post-js-footer.js        => closes this postRun() function
+     - post-js-footer.js        => closes this function
  */
@@ -14,6 +14,9 @@
  intended to be appended after all other sqlite3-api-*.js files so
  that it can finalize any setup and clean up any global symbols
  temporarily used for setting up the API's various subsystems.
+
+  In Emscripten builds it's run in the context of a Module.postRun
+  handler.
 */
 'use strict';
 if('undefined' !== typeof Module){ // presumably an Emscripten build
@@ -228,13 +228,49 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
      }),
      '*'
    ]],
+    /**
+       We do not have a way to automatically clean up destructors
+       which are automatically converted from JS functions via the
+       final argument to sqlite3_set_auxdata(). Because of that,
+       automatic function conversion is not supported for this
+       function.  Clients should use wasm.installFunction() to create
+       such callbacks, then pass that pointer to
+       sqlite3_set_auxdata(). Relying on automated conversions here
+       would lead to leaks of JS/WASM proxy functions because
+       sqlite3_set_auxdata() is frequently called in UDFs.
+
+       The sqlite3.oo1.DB class's onclose handlers can be used for this
+       purpose. For example:
+
+       const pAuxDtor = wasm.installFunction('v(p)', function(ptr){
+         //free ptr
+       });
+       myDb.onclose = {
+         after: ()=>{
+           wasm.uninstallFunction(pAuxDtor);
+         }
+       };
+
+       Then pass pAuxDtor as the final argument to appropriate
+       sqlite3_set_auxdata() calls.
+
+       Note that versions prior to 3.49.0 ostensibly had automatic
+       function conversion here but a typo prevented it from
+       working.  Rather than fix it, it was removed because testing the
+       fix brought the huge potential for memory leaks to the
+       forefront.
+    */
    ["sqlite3_set_auxdata", undefined, [
      "sqlite3_context*", "int", "*",
-      new wasm.xWrap.FuncPtrAdapter({
-        name: 'xDestroyAuxData',
-        signature: 'v(*)',
-        contextKey: (argv, argIndex)=>argv[0/* sqlite3_context* */]
-      })
+      true
+        ? "*"
+        : new wasm.xWrap.FuncPtrAdapter({
+          /* If we can find a way to automate their cleanup, JS functions can
+             be auto-converted with this. */
+          name: 'xDestroyAuxData',
+          signature: 'v(p)',
+          contextKey: (argv, argIndex)=>argv[0/* sqlite3_context* */]
+        })
    ]],
    ["sqlite3_shutdown", undefined],
    ["sqlite3_sourceid", "string"],
@@ -1047,6 +1083,10 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
      'sqlite3_set_authorizer',
      'sqlite3_trace_v2',
      'sqlite3_update_hook'
+      /*
+        We do not yet have a way to clean up automatically-converted
+        sqlite3_set_auxdata() finalizers.
+      */
    ]) {
      const x = wasm.exports[name];
      if( !x ){
@@ -12,12 +12,12 @@

  This file is intended to be combined at build-time with other
  related code, most notably a header and footer which wraps this
-  whole file into an Emscripten Module.postRun() handler. The sqlite3
-  JS API has no hard requirements on Emscripten and does not expose
-  any Emscripten APIs to clients. It is structured such that its build
-  can be tweaked to include it in arbitrary WASM environments which
-  can supply the necessary underlying features (e.g. a POSIX file I/O
-  layer).
+  whole file into a single callback which can be run after Emscripten
+  loads the corresponding WASM module. The sqlite3 JS API has no hard
+  requirements on Emscripten and does not expose any Emscripten APIs
+  to clients. It is structured such that its build can be tweaked to
+  include it in arbitrary WASM environments which can supply the
+  necessary underlying features (e.g. a POSIX file I/O layer).

  Main project home page: https://sqlite.org

@@ -1712,41 +1712,48 @@ globalThis.sqlite3ApiBootstrap = function sqlite3ApiBootstrap(
     missing or falsy pointer argument as 0.
  */
  capi.sqlite3_db_config = function(pDb, op, ...args){
-    if(!this.s){
-      this.s = wasm.xWrap('sqlite3__wasm_db_config_s','int',
-                          ['sqlite3*', 'int', 'string:static']
-                          /* MAINDBNAME requires a static string */);
-      this.pii = wasm.xWrap('sqlite3__wasm_db_config_pii', 'int',
-                            ['sqlite3*', 'int', '*','int', 'int']);
-      this.ip = wasm.xWrap('sqlite3__wasm_db_config_ip','int',
-                           ['sqlite3*', 'int', 'int','*']);
-    }
    switch(op){
-        case capi.SQLITE_DBCONFIG_ENABLE_FKEY:
-        case capi.SQLITE_DBCONFIG_ENABLE_TRIGGER:
-        case capi.SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER:
-        case capi.SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION:
-        case capi.SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE:
-        case capi.SQLITE_DBCONFIG_ENABLE_QPSG:
-        case capi.SQLITE_DBCONFIG_TRIGGER_EQP:
-        case capi.SQLITE_DBCONFIG_RESET_DATABASE:
-        case capi.SQLITE_DBCONFIG_DEFENSIVE:
-        case capi.SQLITE_DBCONFIG_WRITABLE_SCHEMA:
-        case capi.SQLITE_DBCONFIG_LEGACY_ALTER_TABLE:
-        case capi.SQLITE_DBCONFIG_DQS_DML:
-        case capi.SQLITE_DBCONFIG_DQS_DDL:
-        case capi.SQLITE_DBCONFIG_ENABLE_VIEW:
-        case capi.SQLITE_DBCONFIG_LEGACY_FILE_FORMAT:
-        case capi.SQLITE_DBCONFIG_TRUSTED_SCHEMA:
-        case capi.SQLITE_DBCONFIG_STMT_SCANSTATUS:
-        case capi.SQLITE_DBCONFIG_REVERSE_SCANORDER:
-          return this.ip(pDb, op, args[0], args[1] || 0);
-        case capi.SQLITE_DBCONFIG_LOOKASIDE:
-          return this.pii(pDb, op, args[0], args[1], args[2]);
-        case capi.SQLITE_DBCONFIG_MAINDBNAME:
-          return this.s(pDb, op, args[0]);
-        default:
-          return capi.SQLITE_MISUSE;
+      case capi.SQLITE_DBCONFIG_ENABLE_FKEY:
+      case capi.SQLITE_DBCONFIG_ENABLE_TRIGGER:
+      case capi.SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER:
+      case capi.SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION:
+      case capi.SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE:
+      case capi.SQLITE_DBCONFIG_ENABLE_QPSG:
+      case capi.SQLITE_DBCONFIG_TRIGGER_EQP:
+      case capi.SQLITE_DBCONFIG_RESET_DATABASE:
+      case capi.SQLITE_DBCONFIG_DEFENSIVE:
+      case capi.SQLITE_DBCONFIG_WRITABLE_SCHEMA:
+      case capi.SQLITE_DBCONFIG_LEGACY_ALTER_TABLE:
+      case capi.SQLITE_DBCONFIG_DQS_DML:
+      case capi.SQLITE_DBCONFIG_DQS_DDL:
+      case capi.SQLITE_DBCONFIG_ENABLE_VIEW:
+      case capi.SQLITE_DBCONFIG_LEGACY_FILE_FORMAT:
+      case capi.SQLITE_DBCONFIG_TRUSTED_SCHEMA:
+      case capi.SQLITE_DBCONFIG_STMT_SCANSTATUS:
+      case capi.SQLITE_DBCONFIG_REVERSE_SCANORDER:
+      case capi.SQLITE_DBCONFIG_ENABLE_ATTACH_CREATE:
+      case capi.SQLITE_DBCONFIG_ENABLE_ATTACH_WRITE:
+      case capi.SQLITE_DBCONFIG_ENABLE_COMMENTS:
+        if( !this.ip ){
+          this.ip = wasm.xWrap('sqlite3__wasm_db_config_ip','int',
+                               ['sqlite3*', 'int', 'int', '*']);
+        }
+        return this.ip(pDb, op, args[0], args[1] || 0);
+      case capi.SQLITE_DBCONFIG_LOOKASIDE:
+        if( !this.pii ){
+          this.pii = wasm.xWrap('sqlite3__wasm_db_config_pii', 'int',
+                                ['sqlite3*', 'int', '*', 'int', 'int']);
+        }
+        return this.pii(pDb, op, args[0], args[1], args[2]);
+      case capi.SQLITE_DBCONFIG_MAINDBNAME:
+        if(!this.s){
+          this.s = wasm.xWrap('sqlite3__wasm_db_config_s','int',
+                              ['sqlite3*', 'int', 'string:static']
+                              /* MAINDBNAME requires a static string */);
+        }
+        return this.s(pDb, op, args[0]);
+      default:
+        return capi.SQLITE_MISUSE;
    }
  }.bind(Object.create(null));

@@ -279,11 +279,11 @@
  The arguments are in the same form accepted by oo1.DB.exec(), with
  the exceptions noted below.

-  If the `countChanges` arguments property (added in version 3.43) is
-  truthy then the `result` property contained by the returned object
-  will have a `changeCount` property which holds the number of changes
-  made by the provided SQL. Because the SQL may contain an arbitrary
-  number of statements, the `changeCount` is calculated by calling
+  If `args.countChanges` (added in version 3.43) is truthy then the
+  `result` property contained by the returned object will have a
+  `changeCount` property which holds the number of changes made by the
+  provided SQL. Because the SQL may contain an arbitrary number of
+  statements, the `changeCount` is calculated by calling
  `sqlite3_total_changes()` before and after the SQL is evaluated. If
  the value of `countChanges` is 64 then the `changeCount` property
  will be returned as a 64-bit integer in the form of a BigInt (noting
@@ -292,6 +292,15 @@
  calling `sqlite3_total_changes64()` before and after the SQL is
  evaluated.

+  If the `args.lastInsertRowId` (added in version 3.50.0) is truthy
+  then the `result` property contained by the returned object will
+  have a `lastInsertRowId` will hold a BigInt-type value corresponding
+  to the result of sqlite3_last_insert_rowid(). This value is only
+  fetched once, after the SQL is run, regardless of how many
+  statements the SQL contains. This API has no idea whether the SQL
+  contains any INSERTs, so it is up to the client to apply/rely on
+  this property only when it makes sense to do so.
+
  A function-type args.callback property cannot cross
  the window/Worker boundary, so is not useful here. If
  args.callback is a string then it is assumed to be a
@@ -542,6 +551,12 @@ sqlite3.initWorker1API = function(){
        if(undefined !== changeCount){
          rc.changeCount = db.changes(true,64===rc.countChanges) - changeCount;
        }
+        const lastInsertRowId = !!rc.lastInsertRowId
+              ? sqlite3.capi.sqlite3_last_insert_rowid(db)
+              : undefined;
+        if( undefined!==lastInsertRowId ){
+          rc.lastInsertRowId = lastInsertRowId;
+        }
        if(rc.callback instanceof Function){
          rc.callback = theCallback;
          /* Post a sentinel message to tell the client that the end
@@ -331,7 +331,6 @@ SQLITE_WASM_EXPORT void sqlite3__wasm_pstack_restore(unsigned char * p){
 */
 SQLITE_WASM_EXPORT void * sqlite3__wasm_pstack_alloc(int n){
  if( n<=0 ) return 0;
-  //if( n & 0x7 ) n += 8 - (n & 0x7) /* align to 8-byte boundary */;
  n = (n + 7) & ~7 /* align to 8-byte boundary */;
  if( PStack.pBegin + n > PStack.pPos /*not enough space left*/
      || PStack.pBegin + n <= PStack.pBegin /*overflow*/ ) return 0;
@@ -597,6 +596,9 @@ const char * sqlite3__wasm_enum_json(void){
    DefInt(SQLITE_DBCONFIG_TRUSTED_SCHEMA);
    DefInt(SQLITE_DBCONFIG_STMT_SCANSTATUS);
    DefInt(SQLITE_DBCONFIG_REVERSE_SCANORDER);
+    DefInt(SQLITE_DBCONFIG_ENABLE_ATTACH_CREATE);
+    DefInt(SQLITE_DBCONFIG_ENABLE_ATTACH_WRITE);
+    DefInt(SQLITE_DBCONFIG_ENABLE_COMMENTS);
    DefInt(SQLITE_DBCONFIG_MAX);
  } _DefGroup;

@@ -1630,6 +1632,9 @@ int sqlite3__wasm_db_config_ip(sqlite3 *pDb, int op, int arg1, int* pArg2){
    case SQLITE_DBCONFIG_TRUSTED_SCHEMA:
    case SQLITE_DBCONFIG_STMT_SCANSTATUS:
    case SQLITE_DBCONFIG_REVERSE_SCANORDER:
+    case SQLITE_DBCONFIG_ENABLE_ATTACH_CREATE:
+    case SQLITE_DBCONFIG_ENABLE_ATTACH_WRITE:
+    case SQLITE_DBCONFIG_ENABLE_COMMENTS:
      return sqlite3_db_config(pDb, op, arg1, pArg2);
    default: return SQLITE_MISUSE;
  }
@@ -51,7 +51,7 @@

   Its global-scope symbol is intended only to provide an easy way to
   make it available to 3rd-party scripts and "should" be deleted
-   after calling it. That symbols is _not_ used within the library.
+   after calling it. That symbol is _not_ used within the library.

   Forewarning: this API explicitly targets only browser
   environments. If a given non-browser environment has the
@@ -69,7 +69,8 @@
   - WASM-exported "indirect function table" access and
     manipulation. e.g.  creating new WASM-side functions using JS
     functions, analog to Emscripten's addFunction() and
-     uninstallFunction() but slightly different.
+     uninstallFunction() but slightly different and with more useful
+     lifetime semantics.

   - Get/set specific heap memory values, analog to Emscripten's
     getValue() and setValue().
@@ -165,11 +166,11 @@
   This code is developed and maintained in conjunction with the
   Jaccwabyt project:

-   https://fossil.wanderinghorse.net/r/jaccwabbyt
+   https://fossil.wanderinghorse.net/r/jaccwabyt

   More specifically:

-   https://fossil.wanderinghorse.net/r/jaccwabbyt/file/common/whwasmutil.js
+   https://fossil.wanderinghorse.net/r/jaccwabyt/file/common/whwasmutil.js
 */
 globalThis.WhWasmUtilInstaller = function(target){
  'use strict';
@@ -1627,7 +1628,7 @@ globalThis.WhWasmUtilInstaller = function(target){
       need a level of hand-written wrappers around them, depending on
       how they're used, in order to provide the client with JS
       strings. Alternately, clients will need to perform such conversions
-       on their own, e.g. using cstrtojs(). Or maybe we can find a way
+       on their own, e.g. using cstrToJs(). Or maybe we can find a way
       to perform such conversions here, via addition of an xWrap()-style
       function signature to the options argument.
  */
@@ -0,0 +1,15 @@
+# Gets filtered by the configure script
+bin.bash = @BIN_BASH@
+bin.emcc = @EMCC_WRAPPER@
+bin.wasm-strip = @BIN_WASM_STRIP@
+bin.wasm-opt = @BIN_WASM_OPT@
+
+SHELL := $(bin.bash)
+
+# The following overrides can be uncommented to test various
+# validation and if/else branches the makefile code:
+#
+#bin.bash :=
+#bin.emcc :=
+#bin.wasm-strip :=
+#bin.wasm-opt :=
@@ -115,6 +115,7 @@ delete globalThis.sqlite3Worker1Promiser;
            "insert into t(a,b) values(1,2),(3,4),(5,6)"
           ].join(';'),
      resultRows: [], columnNames: [],
+      lastInsertRowId: true,
      countChanges: sqConfig.bigIntEnabled ? 64 : true
    }, function(ev){
      ev = ev.result;
@@ -122,7 +123,9 @@ delete globalThis.sqlite3Worker1Promiser;
        .assert(0===ev.columnNames.length)
        .assert(sqConfig.bigIntEnabled
                ? (3n===ev.changeCount)
-                : (3===ev.changeCount));
+                : (3===ev.changeCount))
+        .assert('bigint'===typeof ev.lastInsertRowId)
+        .assert(ev.lastInsertRowId>=3);
    });

    await wtest('exec',{
@@ -156,11 +156,14 @@
      sql: ["create table t(a,b);",
            "insert into t(a,b) values(1,2),(3,4),(5,6)"
           ],
+      lastInsertRowId: true,
      resultRows: [], columnNames: []
    }, function(ev){
      ev = ev.result;
      T.assert(0===ev.resultRows.length)
-        .assert(0===ev.columnNames.length);
+        .assert(0===ev.columnNames.length)
+        .assert('bigint'===typeof ev.lastInsertRowId)
+        .assert(ev.lastInsertRowId>=3);
    });
    runOneTest('exec',{
      sql: 'select a a, b b from t order by a',
@@ -97,6 +97,16 @@ STRIP_K2.js := $(sqlite3.js) $(sqlite3.mjs) \
 # Note that we require $(bin.version-info) in order to figure out the
 # dist file's name, so cannot (without a recursive make) have the
 # target name equal to the archive name.
+#
+# 2025-01-15: Emsdk 4.0.0 introduces, in its generated code, a regex
+# which contains the pattern /*. That, of course, confuses any C-style
+# comment-stripper which is not specifically JS-aware and smart enough
+# to know that it's in a regex or string literal. Because of that,
+# comment-stripping is currently disabled, which means the builds will
+# be significantly larger than before.
+#apply_comment_stripper := false
+apply_comment_stripper := true
+# ^^^ shell command true or false
 dist: \
    $(bin.stripccomments) $(bin.version-info) \
    $(dist.build) $(STRIP_K1.js) $(STRIP_K2.js) \
@@ -109,8 +119,8 @@ dist: \
 	@cp -p README-dist.txt $(dist-dir.top)/README.txt
 	@cp -p index-dist.html $(dist-dir.top)/index.html
 	@cp -p $(dist.jswasm.extras) $(dist-dir.jswasm)
-	@$(foreach JS,$(STRIP_K1.js),$(call DIST_STRIP_COMMENTS,$(JS),-k))
-	@$(foreach JS,$(STRIP_K2.js),$(call DIST_STRIP_COMMENTS,$(JS),-k -k))
+	@if $(apply_comment_stripper); then $(foreach JS,$(STRIP_K1.js),$(call DIST_STRIP_COMMENTS,$(JS),-k)) fi
+	@if $(apply_comment_stripper); then $(foreach JS,$(STRIP_K2.js),$(call DIST_STRIP_COMMENTS,$(JS),-k -k)) fi
 	@cp -p $(dist.common.extras) $(dist-dir.common)
 	@set -e; \
 		vnum=$$($(bin.version-info) --download-version); \
@@ -91,7 +91,7 @@ all: fiddle
 fiddle_remote ?=
 ifeq (,$(fiddle_remote))
 ifneq (,$(wildcard /home/stephan))
-  fiddle_remote = wh:www/wh/sqlite3/.
+  fiddle_remote = wh:www/wasm-testing/fiddle/.
 else ifneq (,$(wildcard /home/drh))
  #fiddle_remote = if appropriate, add that user@host:/path here
 endif
@@ -97,8 +97,8 @@
              wrapper is significantly easier to use, however.</li>
            <li><a href='demo-worker1-promiser.html'>demo-worker1-promiser</a>:
              a demo of the Promise-based wrapper of the Worker1 API.</li>
-            <li><a href='demo-worker1-promiser-esm.html'>demo-worker1-promiser-esm</a>:
-              same as the previous demo except loads the promiser from an ESM module.</li>
+            <!--li><a href='demo-worker1-promiser-esm.html'>demo-worker1-promiser-esm</a>:
+              same as the previous demo except loads the promiser from an ESM module.</li-->
          </ul>
        </li>
      </ul>
@@ -64,6 +64,75 @@ static void mk_prologue(void){
  ps("# pre-post-jses.deps.* = a list of dependencies for the");
  ps("# --[extern-][pre/post]-js files.");
  ps("pre-post-jses.deps.common := $(extern-pre-js.js) $(sqlite3-license-version.js)");
+
+  {
+    /* SQLITE.CALL.WASM-OPT = shell code to run $(1) (source wasm file
+    ** name) through $(bin.wasm-opt) */
+    const char * zOptFlags =
+      /*
+      ** Flags for wasm-opt. It has many, many, MANY "passes" options
+      ** and the ones which appear here were selected solely on the
+      ** basis of trial and error.
+      **
+      ** All wasm file size savings/costs mentioned below are based on
+      ** the vanilla build of sqlite3.wasm with -Oz (our shipping
+      ** configuration). Comments like "saves nothing" may not be
+      ** technically correct: "nothing" means "some neglible amount."
+      **
+      ** Note that performance gains/losses are _not_ taken into
+      ** account here: only wasm file size.
+      */
+      "--enable-bulk-memory-opt " /* required */
+      "--all-features "           /* required */
+      "--post-emscripten "        /* Saves roughly 12kb */
+      "--strip-debug "            /* We already wasm-strip, but in
+                                  ** case this environment has no
+                                  ** wasm-strip... */
+      /*
+      ** The rest are trial-and-error. See wasm-opt --help and search
+      ** for "Optimization passes" to find the full list.
+      **
+      ** With many flags this gets unusuably slow.
+      */
+      /*"--converge " saves nothing for the options we're using */
+      /*"--dce " saves nothing */
+      /*"--directize " saves nothing */
+      /*"--gsi " no: requires --closed-world flag, which does not
+      ** sound like something we want. */
+      /*"--gufa --gufa-cast-all --gufa-optimizing " costs roughly 2kb */
+      /*"--heap-store-optimization " saves nothing */
+      /*"--heap2local " saves nothing */
+      //"--inlining --inlining-optimizing " costs roughly 3kb */
+      "--local-cse " /* saves roughly 1kb */
+      /*"--once-reduction " saves nothing */
+      /*"--remove-memory-init " presumably a performance tweak */
+      /*"--remove-unused-names " saves nothing */
+      /*"--safe-heap "*/
+      /*"--vacuum " saves nothing */
+      ;
+    ps("ifeq (,$(bin.wasm-opt))");
+    ps("define SQLITE.CALL.WASM-OPT");
+    ps("echo 'wasm-opt not available for $(1)'");
+    ps("endef");
+    ps("else");
+    ps("define SQLITE.CALL.WASM-OPT");
+    pf("echo -n 'Before wasm-opt:'; ls -l $(1);\\\n"
+       "\trm -f wasm-opt-tmp.wasm;\\\n"
+       /* It's very likely that the set of wasm-opt flags varies from
+       ** version to version, so we'll ignore any errors here. */
+       "\tif $(bin.wasm-opt) $(1) -o wasm-opt-tmp.wasm \\\n"
+       "\t\t%s; then \\\n"
+       "\t\tmv wasm-opt-tmp.wasm $(1); \\\n"
+       "\t\techo -n 'After wasm-opt: '; \\\n"
+       "\t\tls -l $(1); \\\n"
+       "\telse \\\n"
+       "\t\techo 'WARNING: ignoring wasm-opt failure'; \\\n"
+       "\tfi\n",
+       zOptFlags
+    );
+    ps("endef");
+    ps("endif");
+  }
 }

 /*
@@ -75,23 +144,23 @@ static void mk_pre_post(const char *zName  /* build name */,
                        const char *zMode  /* build mode */,
                        const char *zCmppD /* optional -D flags for c-pp for the
                                           ** --pre/--post-js files. */){
-  pf("%s# Begin --pre/--post flags for %s-%s\n", zBanner, zName, zMode);
+  pf("%s# Begin --pre/--post flags for %s-%s\n", zBanner, zNM);
  pf("c-pp.D.%s-%s := %s\n", zNM, zCmppD ? zCmppD : "");
  pf("pre-post-%s-%s.flags ?=\n", zNM);

  /* --pre-js=... */
  pf("pre-js.js.%s-%s := $(dir.tmp)/pre-js.%s-%s.js\n",
     zNM, zNM);
-  pf("$(pre-js.js.%s-%s): $(MAKEFILE)\n", zNM);
+  pf("$(pre-js.js.%s-%s): $(MAKEFILE_LIST)\n", zNM);
 #if 1
-  pf("$(eval $(call C-PP.FILTER,$(pre-js.js.in),$(pre-js.js.%s-%s),"
+  pf("$(eval $(call SQLITE.CALL.C-PP.FILTER,$(pre-js.js.in),$(pre-js.js.%s-%s),"
     "$(c-pp.D.%s-%s)))\n", zNM, zNM);
 #else
  /* This part is needed if/when we re-enable the custom
  ** Module.instantiateModule() impl in api/pre-js.c-pp.js. */
  pf("pre-js.js.%s-%s.intermediary := $(dir.tmp)/pre-js.%s-%s.intermediary.js\n",
     zNM, zNM);
-  pf("$(eval $(call C-PP.FILTER,$(pre-js.js.in),$(pre-js.js.%s-%s.intermediary),"
+  pf("$(eval $(call SQLITE.CALL.C-PP.FILTER,$(pre-js.js.in),$(pre-js.js.%s-%s.intermediary),"
     "$(c-pp.D.%s-%s) -Dcustom-Module.instantiateModule))\n", zNM, zNM);
  pf("$(pre-js.js.%s-%s): $(pre-js.js.%s-%s.intermediary)\n", zNM, zNM);
  pf("\tcp $(pre-js.js.%s-%s.intermediary) $@\n", zNM);
@@ -107,12 +176,12 @@ static void mk_pre_post(const char *zName  /* build name */,

  /* --post-js=... */
  pf("post-js.js.%s-%s := $(dir.tmp)/post-js.%s-%s.js\n", zNM, zNM);
-  pf("$(eval $(call C-PP.FILTER,$(post-js.js.in),"
+  pf("$(eval $(call SQLITE.CALL.C-PP.FILTER,$(post-js.js.in),"
     "$(post-js.js.%s-%s),$(c-pp.D.%s-%s)))\n", zNM, zNM);

  /* --extern-post-js=... */
  pf("extern-post-js.js.%s-%s := $(dir.tmp)/extern-post-js.%s-%s.js\n", zNM, zNM);
-  pf("$(eval $(call C-PP.FILTER,$(extern-post-js.js.in),$(extern-post-js.js.%s-%s),"
+  pf("$(eval $(call SQLITE.CALL.C-PP.FILTER,$(extern-post-js.js.in),$(extern-post-js.js.%s-%s),"
     "$(c-pp.D.%s-%s)))\n", zNM, zNM);

  /* Combine flags for use with emcc... */
@@ -130,7 +199,7 @@ static void mk_pre_post(const char *zName  /* build name */,
     zNM, zNM, zNM);
  pf("pre-post-%s-%s.deps := $(pre-post-jses.%s-%s.deps) $(dir.tmp)/pre-js.%s-%s.js\n",
     zNM, zNM, zNM);
-  pf("# End --pre/--post flags for %s-%s%s", zName, zMode, zBanner);
+  pf("# End --pre/--post flags for %s-%s%s", zNM, zBanner);
 }

 /*
@@ -149,29 +218,29 @@ static void mk_fiddle(){
    pf("fiddle-module.js%s := %s/fiddle-module.js\n", zTail, zDir);
    pf("fiddle-module.wasm%s := "
       "$(subst .js,.wasm,$(fiddle-module.js%s))\n", zTail, zTail);
-    pf("$(fiddle-module.js%s):%s $(MAKEFILE) $(MAKEFILE.fiddle) "
+    pf("$(fiddle-module.js%s):%s $(MAKEFILE_LIST) $(MAKEFILE.fiddle) "
       "$(EXPORTED_FUNCTIONS.fiddle) "
       "$(fiddle.cses) $(pre-post-fiddle-module-vanilla.deps) "
       "$(SOAP.js)\n",
       zTail, (i ? " $(fiddle-module.js)" : ""));
    if( 1==i ){/*fiddle.debug*/
-      pf("	@test -d \"$(dir $@)\" || mkdir -p \"$(dir $@)\"\n");
+      pf("\t@test -d \"$(dir $@)\" || mkdir -p \"$(dir $@)\"\n");
    }
-    pf("	$(emcc.bin) -o $@ $(fiddle.emcc-flags%s) "
+    pf("\t$(bin.emcc) -o $@ $(fiddle.emcc-flags%s) "
       "$(pre-post-fiddle-module-vanilla.flags) $(fiddle.cses)\n",
       zTail);
-    pf("	$(maybe-wasm-strip) $(fiddle-module.wasm%s)\n", zTail);
-    pf("	@cp -p $(SOAP.js) $(dir $@)\n");
+    pf("\t$(maybe-wasm-strip) $(fiddle-module.wasm%s)\n", zTail);
+    pf("\t@cp -p $(SOAP.js) $(dir $@)\n");
    if( 1==i ){/*fiddle.debug*/
-      pf("	cp -p $(dir.fiddle)/index.html "
+      pf("\tcp -p $(dir.fiddle)/index.html "
         "$(dir.fiddle)/fiddle.js "
         "$(dir.fiddle)/fiddle-worker.js "
         "$(dir $@)\n");
    }
-    pf("	@for i in %s/*.*js %s/*.html %s/*.wasm; do \\\n"
-       "		test -f $${i} || continue;             \\\n"
-       "		gzip < $${i} > $${i}.gz; \\\n"
-       "	done\n", zDir, zDir, zDir);
+    pf("\t@for i in %s/*.*js %s/*.html %s/*.wasm; do \\\n"
+       "\t\ttest -f $${i} || continue;             \\\n"
+       "\t\tgzip < $${i} > $${i}.gz; \\\n"
+       "\tdone\n", zDir, zDir, zDir);
    if( 0==i ){
      ps("fiddle: $(fiddle-module.js)");
    }else{
@@ -193,6 +262,10 @@ static void mk_lib_mode(const char *zName     /* build name */,
                        const char *zJsOut    /* name of generated sqlite3.js/.mjs */,
                        const char *zCmppD    /* extra -D flags for c-pp */,
                        const char *zEmcc     /* extra flags for emcc */){
+  const char * zWasmOut = "$(basename $@).wasm"
+    /* The various targets named X.js or X.mjs (zJsOut) also generate
+    ** X.wasm, and we need that part of the name to perform some
+    ** post-processing after Emscripten generates X.wasm. */;
  assert( zName );
  assert( zMode );
  assert( zApiJsOut );
@@ -201,22 +274,29 @@ static void mk_lib_mode(const char *zName     /* build name */,
  if( !zEmcc ) zEmcc = "";

  pf("%s# Begin build [%s-%s]\n", zBanner, zNM);
-  pf("ifneq (1,$(MAKING_CLEAN))\n");
+  pf("# zApiJsOut=%s\n# zJsOut=%s\n# zCmppD=%s\n", zApiJsOut, zJsOut, zCmppD);
  pf("$(info Setting up build [%s-%s]: %s)\n", zNM, zJsOut);
  mk_pre_post(zNM, zCmppD);
  pf("\nemcc.flags.%s.%s ?=\n", zNM);
  if( zEmcc[0] ){
    pf("emcc.flags.%s.%s += %s\n", zNM, zEmcc);
  }
-  pf("$(eval $(call C-PP.FILTER, $(sqlite3-api.js.in), %s, %s))\n",
+  pf("$(eval $(call SQLITE.CALL.C-PP.FILTER, $(sqlite3-api.js.in), %s, %s))\n",
     zApiJsOut, zCmppD);

  /* target zJsOut */
-  pf("%s: %s $(MAKEFILE) $(sqlite3-wasm.cfiles) $(EXPORTED_FUNCTIONS.api) "
-     "$(pre-post-%s-%s.deps)\n",
+  pf("%s: %s $(MAKEFILE_LIST) $(sqlite3-wasm.cfiles) $(EXPORTED_FUNCTIONS.api) "
+     "$(pre-post-%s-%s.deps) "
+     "$(sqlite3-api.ext.jses)"
+     /* ^^^ maintenance reminder: we set these as deps so that they
+        get copied into place early. That allows the developer to
+        reload the base-most test pages while the later-stage builds
+        are still compiling, which is especially helpful when running
+        builds with long build times (like -Oz). */
+     "\n",
     zJsOut, zApiJsOut, zNM);
  pf("\t@echo \"Building $@ ...\"\n");
-  pf("\t$(emcc.bin) -o $@ $(emcc_opt_full) $(emcc.flags) \\\n");
+  pf("\t$(bin.emcc) -o $@ $(emcc_opt_full) $(emcc.flags) \\\n");
  pf("\t\t$(emcc.jsflags) -sENVIRONMENT=$(emcc.environment.%s) \\\n", zMode);
  pf("\t\t$(pre-post-%s-%s.flags) \\\n", zNM);
  pf("\t\t$(emcc.flags.%s) $(emcc.flags.%s.%s) \\\n", zName, zNM);
@@ -224,36 +304,59 @@ static void mk_lib_mode(const char *zName     /* build name */,
     "\t\t$(cflags.%s) $(cflags.%s.%s) \\\n"
     "\t\t$(cflags.wasm_extra_init) $(sqlite3-wasm.cfiles)\n", zName, zNM);
  if( bIsEsm ){
-    /* TODO? Replace this CALL with the corresponding makefile code.
-    ** OTOH, we also use this $(call) in the speedtest1-wasmfs build,
-    ** which is not part of the rules emitted by this program. */
-    pf("\t@$(call SQLITE3.xJS.ESM-EXPORT-DEFAULT,1,%d)\n",
+    /* TODO? Replace this $(call) with the corresponding makefile
+    ** code.  OTOH, we also use this $(call) in the speedtest1-wasmfs
+    ** build, which is not part of the rules emitted by this
+    ** program. */
+    pf("\t@$(call SQLITE.CALL.xJS.ESM-EXPORT-DEFAULT,1,%d)\n",
       0==strcmp("sqlite3-wasmfs", zName) ? 1 : 0);
  }
-  pf("\t@dotwasm=$(basename $@).wasm; \\\n"
-     "\tchmod -x $$dotwasm; \\\n"
-     "\t$(maybe-wasm-strip) $$dotwasm; \\\n");
+  pf("\t@chmod -x %s; \\\n"
+     "\t\t$(maybe-wasm-strip) %s;\n",
+     zWasmOut, zWasmOut);
+  pf("\t@$(call SQLITE.CALL.WASM-OPT,%s)\n", zWasmOut);
+  pf("\t@sed -i -e '/^var _sqlite3.*createExportWrapper/d' %s || exit; \\\n"
+     /*  ^^^^^^ reminder: Mac/BSD sed has no -i flag */
+     "\t\techo 'Stripped out createExportWrapper() parts.'\n",
+     zJsOut) /* Our JS code installs bindings of each WASM export. The
+                generated Emscripten JS file does the same using its
+                own framework, but we don't use those results and can
+                speed up lib init, and reduce memory cost
+                considerably, by stripping them out. */;
  /*
-  ** The above $(emcc.bin) call will write zJsOut and will create a
-  ** like-named .wasm file. That .wasm file name gets hard-coded into
-  ** zJsOut so we need to, for some cases, patch zJsOut to use the
-  ** name sqlite3.wasm instead. Note that the resulting .wasm file is
-  ** identical for all builds for which zEmcc is empty.
+  ** The above $(bin.emcc) call will write zJsOut and will create a
+  ** like-named .wasm file (zWasmOut). That .wasm file name gets
+  ** hard-coded into zJsOut so we need to, for some cases, patch
+  ** zJsOut to use the name sqlite3.wasm instead. Note that the
+  ** resulting .wasm file is identical for all builds for which zEmcc
+  ** is empty.
  */
  if( 0==strcmp("bundler-friendly", zMode)
-      || 0==strcmp("node", zMode) ) {
-    pf("\techo 'Patching $@ for %s.wasm...' \\\n", zName);
-    pf("\trm -f $$dotwasm; dotwasm=; \\\n"
-       "\tsed -i -e 's/%s-%s.wasm/%s.wasm/g' $@ || exit $$?; \\\n",
+      || 0==strcmp("node", zMode) ){
+    pf("\t@echo 'Patching $@ for %s.wasm...'; \\\n", zName);
+    pf("\t\trm -f %s; \\\n", zWasmOut);
+    pf("\t\tsed -i -e 's/%s-%s.wasm/%s.wasm/g' $@ || exit;\n",
+       /* ^^^^^^ reminder: Mac/BSD sed has no -i flag */
       zNM, zName);
+    pf("\t@ls -la $@\n");
+    if( 0==strcmp("bundler-friendly", zMode) ){
+      /* Avoid a 3rd occurance of the bug fixed by 65798c09a00662a3,
+      ** which was (in two cases) caused by makefile refactoring and
+      ** not recognized until after a release was made with the broken
+      ** sqlite3-bundler-friendly.mjs: */
+      pf("\t@if grep -e '^ *importScripts(' $@; "
+         "then echo 'ERROR: bug fixed in 65798c09a00662a3 has re-appeared'; "
+         "exit 1; fi;\n");
+    }
+
+  }else{
+    pf("\t@ls -la %s $@\n", zWasmOut);
  }
-  pf("\tls -la $$dotwasm $@\n");
  if( 0!=strcmp("sqlite3-wasmfs", zName) ){
    /* The sqlite3-wasmfs build is optional and needs to be invoked
    ** conditionally using info we don't have here. */
    pf("all: %s\n", zJsOut);
  }
-  ps("endif\n# ^^^ !$(MAKING_CLEAN)");
  pf("# End build [%s-%s]%s", zNM, zBanner);
 }

@@ -1241,6 +1241,12 @@ globalThis.sqlite3InitModule = sqlite3InitModule;
      }finally{
        wasm.pstack.restore(stack);
      }
+
+      capi.sqlite3_db_config(this.db, capi.SQLITE_DBCONFIG_ENABLE_COMMENTS, 0, null);
+      T.mustThrow(()=>this.db.exec("select 1 /* with comments */"), "SQL comments are disallowed");
+      capi.sqlite3_db_config(this.db, capi.SQLITE_DBCONFIG_ENABLE_COMMENTS, 1, null);
+      this.db.exec("select 1 /* with comments */");
+      /* SQLITE_DBCONFIG_ENABLE_ATTACH_... are in the ATTACH-specific tests */
    })

  ////////////////////////////////////////////////////////////////////
@@ -1999,7 +2005,7 @@ globalThis.sqlite3InitModule = sqlite3InitModule;
    }/*window UDFs*/)

  ////////////////////////////////////////////////////////////////////
-    .t("ATTACH", function(){
+    .t("ATTACH", function(sqlite3){
      const db = this.db;
      const resultRows = [];
      db.exec({
@@ -2078,7 +2084,36 @@ globalThis.sqlite3InitModule = sqlite3InitModule;
      db.exec("detach foo");
      T.mustThrow(()=>db.exec("select * from foo.bar"),
                  "Because foo is no longer attached.");
-    })
+
+      /* SQLITE_DBCONFIG_ENABLE_ATTACH_CREATE/WRITE... */
+      const db2 = new sqlite3.oo1.DB();
+      try{
+        capi.sqlite3_db_config(db2, capi.SQLITE_DBCONFIG_ENABLE_ATTACH_CREATE, 0, null);
+        T.mustThrow(()=>db2.exec("attach 'attached.db' as foo"),
+                    "Cannot create a new db via ATTACH");
+        capi.sqlite3_db_config(db2, capi.SQLITE_DBCONFIG_ENABLE_ATTACH_CREATE, 1, null);
+        db2.exec([
+          "attach 'attached.db' as foo;",
+          "create table foo.t(a);",
+          "insert into foo.t(a) values(1);",
+          "detach foo;"
+          ]);
+        capi.sqlite3_db_config(db2, capi.SQLITE_DBCONFIG_ENABLE_ATTACH_WRITE, 0, null);
+        db2.exec("attach 'attached.db' as foo");
+        T.mustThrow(()=>db2.exec("insert into foo.t(a) values(2)"),
+                   "ATTACH_WRITE is false");
+        capi.sqlite3_db_config(db2, capi.SQLITE_DBCONFIG_ENABLE_ATTACH_WRITE, 1, null);
+        db2.exec([
+          "detach foo;",
+          "attach 'attached.db' as foo;",
+          "insert into foo.t(a) values(2);",
+          "drop table foo.t;",
+          "detach foo"
+        ]);
+      }finally{
+        db2.close();
+      }
+    })/*ATTACH tests*/

  ////////////////////////////////////////////////////////////////////
    .t("Read-only", function(sqlite3){
@@ -3402,6 +3437,71 @@ globalThis.sqlite3InitModule = sqlite3InitModule;
        }
      }
    })
+    .t({
+      /* https://github.com/sqlite/sqlite-wasm/issues/92 */
+      name: 'sqlite3_set_auxdata() binding signature',
+      test: function(sqlite3){
+        const db = new sqlite3.oo1.DB();
+        const stack = wasm.pstack.pointer;
+        const pAux = wasm.pstack.alloc(4);
+        let pAuxDestructed = 0;
+        const pAuxDtor = wasm.installFunction('v(p)', function(ptr){
+          //log("freeing auxdata");
+          ++pAuxDestructed;
+        });
+        let pAuxDtorDestructed = false;
+        db.onclose = {
+          after: ()=>{
+            pAuxDtorDestructed = true;
+            wasm.uninstallFunction(pAuxDtor);
+          }
+        };
+        let nAuxSet = 0 /* how many times we set aux data */;
+        let nAuxReused = 0 /* how many times we reused aux data */;
+        try{
+          db.createFunction("auxtest",{
+            xFunc: function(pCx, x, y){
+              T.assert(wasm.isPtr(pCx));
+              const localAux = capi.sqlite3_get_auxdata(pCx, 0);
+              if( !localAux ){
+                //log("setting auxdata");
+                /**
+                   We do not currently an automated way to clean up
+                   auxdata finalizer functions (the 4th argument to
+                   sqlite3_set_auxdata()) which get automatically
+                   converted from JS to WASM. Because of that, enabling
+                   automated conversions here would lead to leaks more
+                   often than not. Instead, follow the pattern show in
+                   this function: use wasm.installFunction() to create
+                   the function, then pass the resulting function
+                   pointer this function, and cleanup (at some point)
+                   using wasm.uninstallFunction().
+                */
+                ++nAuxSet;
+                capi.sqlite3_set_auxdata(pCx, 0, pAux, pAuxDtor);
+              }else{
+                //log("reusing auxdata",localAux);
+                T.assert(pAux===localAux);
+                ++nAuxReused;
+              }
+              return x;
+            }
+          });
+          db.exec([
+            "create table t(a);",
+            "insert into t(a) values(1),(2),(3);",
+            "select auxtest(1,a), auxtest(1,a) from t order by a"
+          ]);
+        }finally{
+          db.close();
+          wasm.pstack.restore(stack);
+        }
+        T.assert(nAuxSet>0).assert(nAuxReused>0)
+          .assert(6===nAuxReused+nAuxSet);
+        T.assert(pAuxDestructed>0);
+        T.assert(pAuxDtorDestructed);
+      }
+    })
  ;/*end of Bug Reports group*/;

  ////////////////////////////////////////////////////////////////////////
@@ -101,7 +101,7 @@ $(speedtest1-wasmfs.mjs): $(speedtest1.cfiles) $(sqlite3-wasmfs.js) \
        $(emcc.flags.sqlite3-wasmfs) \
        $(emcc.flags.speedtest1-wasmfs) \
        -o $@ $(speedtest1.cfiles) -lm
-	@$(call SQLITE3.xJS.ESM-EXPORT-DEFAULT,1,1)
+	@$(call SQLITE.CALL.xJS.ESM-EXPORT-DEFAULT,1,1)
 	$(maybe-wasm-strip) $(speedtest1-wasmfs.wasm)
 	chmod -x $(speedtest1-wasmfs.wasm)
 	ls -la $@ $(speedtest1-wasmfs.wasm)
@@ -163,9 +163,11 @@ LDFLAGS.rpath ?= -Wl,-rpath -Wl,$(prefix)/lib
 LDFLAGS.pthread ?= -lpthread
 LDFLAGS.dlopen ?= -ldl
 LDFLAGS.shlib ?= -shared
+LDFLAGS.rt ?= # nanosleep on some platforms
 LDFLAGS.icu ?= # -licui18n -licuuc -licudata
 CFLAGS.icu ?=
 LDFLAGS.libsqlite3.soname ?= # see https://sqlite.org/src/forumpost/5a3b44f510df8ded
+LDFLAGS.libsqlite3.os-specific ?= # see https://sqlite.org/forum/forumpost/9dfd5b8fd525a5d7
 # libreadline (or a workalike):
 # To activate readline in the shell: SHELL_OPT = -DHAVE_READLINE=1
 LDFLAGS.readline ?= -lreadline # these vary across platforms
@@ -412,7 +414,7 @@ LDFLAGS.libsqlite3 = \
  $(LDFLAGS.rpath) $(LDFLAGS.pthread) \
  $(LDFLAGS.math) $(LDFLAGS.dlopen) \
  $(LDFLAGS.zlib) $(LDFLAGS.icu) \
-  $(LDFLAGS.configure)
+  $(LDFLAGS.rt) $(LDFLAGS.configure)

 #
 # $(install-dir.XYZ) = dirs for installation.
@@ -434,7 +436,8 @@ install-dir.all = $(install-dir.bin) $(install-dir.include) \
  $(install-dir.lib) $(install-dir.man1) \
  $(install-dir.pkgconfig)
 $(install-dir.all):
-	$(INSTALL) -d "$@"
+	@if [ ! -d "$@" ]; then set -x; $(INSTALL) -d "$@"; fi
+# ^^^^ on some platforms, install -d fails if the target already exists.

 #
 # After jimsh is compiled, we run some sanity checks to ensure that
@@ -545,7 +548,7 @@ SRC = \
  $(TOP)/src/build.c \
  $(TOP)/src/callback.c \
  $(TOP)/src/complete.c \
-  $(TOP)/src/ctime.c \
+  ctime.c \
  $(TOP)/src/date.c \
  $(TOP)/src/dbpage.c \
  $(TOP)/src/dbstat.c \
@@ -593,7 +596,7 @@ SRC = \
  $(TOP)/src/pcache.h \
  $(TOP)/src/pcache1.c \
  $(TOP)/src/pragma.c \
-  $(TOP)/src/pragma.h \
+  pragma.h \
  $(TOP)/src/prepare.c \
  $(TOP)/src/printf.c \
  $(TOP)/src/random.c \
@@ -789,7 +792,7 @@ TESTSRC2 = \
  $(TOP)/src/bitvec.c \
  $(TOP)/src/btree.c \
  $(TOP)/src/build.c \
-  $(TOP)/src/ctime.c \
+  ctime.c \
  $(TOP)/src/date.c \
  $(TOP)/src/dbpage.c \
  $(TOP)/src/dbstat.c \
@@ -854,7 +857,7 @@ HDR = \
   $(TOP)/src/pager.h \
   $(TOP)/src/pcache.h \
   parse.h  \
-   $(TOP)/src/pragma.h \
+   pragma.h \
   sqlite3.h  \
   $(TOP)/src/sqlite3ext.h \
   $(TOP)/src/sqliteInt.h  \
@@ -1066,7 +1069,7 @@ mksourceid$(B.exe): $(MAKE_SANITY_CHECK) $(TOP)/tool/mksourceid.c
 sqlite3.h: $(MAKE_SANITY_CHECK) $(TOP)/src/sqlite.h.in \
    $(TOP)/manifest mksourceid$(B.exe) \
 		$(TOP)/VERSION $(B.tclsh)
-	$(B.tclsh) $(TOP)/tool/mksqlite3h.tcl $(TOP) >sqlite3.h
+	$(B.tclsh) $(TOP)/tool/mksqlite3h.tcl $(TOP) -o sqlite3.h

 sqlite3.c:	.target_source sqlite3.h $(TOP)/tool/mksqlite3c.tcl src-verify$(B.exe) \
 		$(B.tclsh)
@@ -1075,7 +1078,7 @@ sqlite3.c:	.target_source sqlite3.h $(TOP)/tool/mksqlite3c.tcl src-verify$(B.exe
 	cp $(TOP)/ext/session/sqlite3session.h .

 sqlite3r.h: sqlite3.h $(B.tclsh)
-	$(B.tclsh) $(TOP)/tool/mksqlite3h.tcl $(TOP) --enable-recover >sqlite3r.h
+	$(B.tclsh) $(TOP)/tool/mksqlite3h.tcl $(TOP) --enable-recover -o sqlite3r.h

 sqlite3r.c: sqlite3.c sqlite3r.h $(B.tclsh)
 	cp $(TOP)/ext/recover/sqlite3recover.c tsrc/
@@ -1134,8 +1137,11 @@ callback.o:	$(TOP)/src/callback.c $(DEPS_OBJ_COMMON)
 complete.o:	$(TOP)/src/complete.c $(DEPS_OBJ_COMMON)
 	$(T.cc.sqlite) -c $(TOP)/src/complete.c

-ctime.o:	$(TOP)/src/ctime.c $(DEPS_OBJ_COMMON)
-	$(T.cc.sqlite) -c $(TOP)/src/ctime.c
+ctime.c:	$(TOP)/tool/mkctimec.tcl $(B.tclsh)
+	$(B.tclsh) $(TOP)/tool/mkctimec.tcl
+
+ctime.o:	ctime.c $(DEPS_OBJ_COMMON)
+	$(T.cc.sqlite) -c ctime.c

 date.o:	$(TOP)/src/date.c $(DEPS_OBJ_COMMON)
 	$(T.cc.sqlite) -c $(TOP)/src/date.c
@@ -1379,6 +1385,9 @@ parse.c:	$(TOP)/src/parse.y lemon$(B.exe)
 	cp $(TOP)/src/parse.y .
 	./lemon$(B.exe) $(OPT_FEATURE_FLAGS) $(OPTS) -S parse.y

+pragma.h:	$(TOP)/tool/mkpragmatab.tcl $(B.tclsh)
+	$(B.tclsh) $(TOP)/tool/mkpragmatab.tcl
+
 sqlite3rc.h:	$(TOP)/src/sqlite3.rc $(TOP)/VERSION $(B.tclsh)
 	echo '#ifndef SQLITE_RESOURCE_VERSION' >$@
 	echo -n '#define SQLITE_RESOURCE_VERSION ' >>$@
@@ -1411,23 +1420,24 @@ all: lib
 #
 $(libsqlite3.SO):	$(LIBOBJ)
 	$(T.link.shared) -o $@ $(LIBOBJ) $(LDFLAGS.libsqlite3) \
-		$(LDFLAGS.libsqlite3.soname)
+		$(LDFLAGS.libsqlite3.os-specific) $(LDFLAGS.libsqlite3.soname)
 $(libsqlite3.SO)-1: $(libsqlite3.SO)
 $(libsqlite3.SO)-0 $(libsqlite3.SO)-:
 so: $(libsqlite3.SO)-$(ENABLE_SHARED)
 all: so

 #
-# Install the $(libsqlite3.SO) as $(libsqlite3.SO).$(PACKAGE_VERSION)
-# and create symlinks which point to it:
+# On most Unix-like platforms, install the $(libsqlite3.SO) as
+# $(libsqlite3.SO).$(PACKAGE_VERSION) and create symlinks which point
+# to it:
 #
 # - libsqlite3.so.$(PACKAGE_VERSION)
 # - libsqlite3.so.0      =symlink-> libsqlite3.so.$(PACKAGE_VERSION) (see below)
 # - libsqlite3.so        =symlink-> libsqlite3.so.3
 #
-# N.B. we initially had a link named libsqlite3.so.3 but it's
-# unnecessary unless we want to set SONAME to libsqlite3.so.3, which
-# is also unnecessary.
+# The symlinks are not added on platforms where $(T.dll) is ".dll",
+# and different transformations take place on platforms where $(T.dll)
+# is ".dylib".
 #
 # The link named libsqlite3.so.0 is provided in an attempt to reduce
 # downstream disruption when performing upgrades from pre-3.48 to a
@@ -1465,13 +1475,27 @@ all: so
 #
 install-so-1: $(install-dir.lib) $(libsqlite3.SO)
 	$(INSTALL) $(libsqlite3.SO) "$(install-dir.lib)"
-	@echo "Setting up $(libsqlite3.SO) symlinks..."; \
+	@if [ -f $(libsqlite3.SO).a ]; then \
+		$(INSTALL) $(libsqlite3.SO).a "$(install-dir.lib)"; \
+	fi
+	@echo "Setting up $(libsqlite3.SO) version symlinks..."; \
+	if [ x.dll = x$(T.dll) ]; then \
+		echo "No library symlinks needed on this platform"; \
+	elif [ x.dylib = x$(T.dll) ]; then \
+		cd "$(install-dir.lib)" || exit $$?; \
+		rm -f libsqlite3.0$(T.dll) libsqlite3.$(PACKAGE_VERSION)$(T.dll) || exit $$?; \
+		dllname=libsqlite3.$(PACKAGE_VERSION)$(T.dll); \
+		mv $(libsqlite3.SO) $$dllname || exit $$?; \
+		ln -s $$dllname $(libsqlite3.SO) || exit $$?; \
+		ln -s $$dllname libsqlite3.0$(T.dll) || exit $$?; \
+		ls -la $$dllname $(libsqlite3.SO) libsqlite3.0$(T.dll); \
+	else \
 		cd "$(install-dir.lib)" || exit $$?; \
 		rm -f $(libsqlite3.SO).0 $(libsqlite3.SO).$(PACKAGE_VERSION) || exit $$?; \
 		mv $(libsqlite3.SO) $(libsqlite3.SO).$(PACKAGE_VERSION) || exit $$?; \
 		ln -s $(libsqlite3.SO).$(PACKAGE_VERSION) $(libsqlite3.SO) || exit $$?; \
 		ln -s $(libsqlite3.SO).$(PACKAGE_VERSION) $(libsqlite3.SO).0 || exit $$?; \
-		ls -la $(libsqlite3.SO) $(libsqlite3.SO).[03]*; \
+		ls -la $(libsqlite3.SO) $(libsqlite3.SO).[a03]*; \
 		if [ -e $(libsqlite3.SO).0.8.6 ]; then \
 			echo "ACHTUNG: legacy libtool-compatible install found. Re-linking it..."; \
 			rm -f libsqlite3.la $(libsqlite3.SO).0.8.6 || exit $$?; \
@@ -1482,7 +1506,9 @@ install-so-1: $(install-dir.lib) $(libsqlite3.SO)
 			rm -f libsqlite3.la $(libsqlite3.SO).0.8.6 || exit $$?; \
 			ln -s $(libsqlite3.SO).$(PACKAGE_VERSION) $(libsqlite3.SO).0.8.6 || exit $$?; \
 			ls -la $(libsqlite3.SO).0.8.6; \
-		fi
+		fi; \
+	fi
+
 install-so-0 install-so-:
 install-so: install-so-$(ENABLE_SHARED)
 install: install-so
@@ -1507,7 +1533,7 @@ install: install-headers
 # libtclsqlite3...
 #
 pkgIndex.tcl:
-	echo 'package ifneeded sqlite3 $(PACKAGE_VERSION) [list load [file join $$dir libtclsqlite3[info sharedlibextension]] sqlite3]' > $@
+	echo 'package ifneeded sqlite3 $(PACKAGE_VERSION) [list load [file join $$dir libtclsqlite3[info sharedlibextension]] Sqlite3]' > $@
 pkgIndex.tcl-1: pkgIndex.tcl
 pkgIndex.tcl-0 pkgIndex.tcl-:
 tcl: pkgIndex.tcl-$(HAVE_TCL)
@@ -1682,7 +1708,7 @@ fuzztest:	fuzzcheck$(T.exe) $(FUZZDATA) sessionfuzz$(T.exe)
 	./fuzzcheck$(T.exe) $(FUZZDATA)
 	./sessionfuzz$(T.exe) run $(TOP)/test/sessionfuzz-data1.db

-valgrindfuzz:	fuzzcheck$(TEXT) $(FUZZDATA) sessionfuzz$(T.exe)
+valgrindfuzz:	fuzzcheck$(T.exe) $(FUZZDATA) sessionfuzz$(T.exe)
 	valgrind ./fuzzcheck$(T.exe) --cell-size-check --limit-mem 10M $(FUZZDATA)
 	valgrind ./sessionfuzz$(T.exe) run $(TOP)/test/sessionfuzz-data1.db

@@ -2017,7 +2043,7 @@ sqlite3d$(T.exe):	shell.c $(LIBOBJS0)
 		$(LDFLAGS.libsqlite3) $(LDFLAGS.readline)

 install-shell-0: sqlite3$(T.exe) $(install-dir.bin)
-	$(INSTALL) -s sqlite3$(T.exe) "$(install-dir.bin)"
+	$(INSTALL) sqlite3$(T.exe) "$(install-dir.bin)"
 install-shell-1:
 install: install-shell-$(HAVE_WASI_SDK)

@@ -2031,7 +2057,7 @@ sqldiff$(T.exe): $(sqldiff.$(LINK_TOOLS_DYNAMICALLY).deps)
 	$(sqldiff.$(LINK_TOOLS_DYNAMICALLY).rules)

 install-diff: sqldiff$(T.exe) $(install-dir.bin)
-	$(INSTALL) -s sqldiff$(T.exe) "$(install-dir.bin)"
+	$(INSTALL) sqldiff$(T.exe) "$(install-dir.bin)"
 #install: install-diff

 dbhash$(T.exe):	$(TOP)/tool/dbhash.c sqlite3.o sqlite3.h
@@ -2210,7 +2236,7 @@ SHELL_DEP = \
    $(TOP)/src/test_windirent.h

 shell.c:	$(SHELL_DEP) $(TOP)/tool/mkshellc.tcl $(B.tclsh)
-	$(B.tclsh) $(TOP)/tool/mkshellc.tcl >shell.c
+	$(B.tclsh) $(TOP)/tool/mkshellc.tcl shell.c

 #
 # Rules to build the extension objects.
@@ -2318,7 +2344,7 @@ tidy: tidy-.
 	rm -f lemon$(B.exe) sqlite*.tar.gz
 	rm -f mkkeywordhash$(B.exe) mksourceid$(B.exe)
 	rm -f parse.* fts5parse.*
-	rm -f $(libsqlite3.SO) $(libsqlite3.LIB) $(libtclsqlite3.SO)
+	rm -f $(libsqlite3.SO) $(libsqlite3.LIB) $(libtclsqlite3.SO) $(libsqlite3.SO).a
 	rm -f tclsqlite3$(T.exe) $(TESTPROGS)
 	rm -f LogEst$(T.exe) fts3view$(T.exe) rollback-test$(T.exe) showdb$(T.exe)
 	rm -f showjournal$(T.exe) showstat4$(T.exe) showwal$(T.exe) speedtest1$(T.exe)
@@ -2338,6 +2364,7 @@ tidy: tidy-.
 	rm -f src-verify$(B.exe)
 	rm -f tclsqlite3.c has_tclsh* $(T.tcl.env.sh)
 	rm -f sqlite3rc.h sqlite3.def
+	rm -f ctime.c pragma.h

 #
 # Removes build products and test logs.  Retains ./configure outputs.
@@ -2352,7 +2379,7 @@ distclean:	distclean-. clean


 # Show important variable settings.
-show-variables:	
+show-variables:
 	@echo "CC          = $(CC)"
 	@echo "B.cc        = $(B.cc)"
 	@echo "T.cc        = $(T.cc)"
@@ -1,31 +1,30 @@
-C Version\s3.48.0
-D 2025-01-14T11:05:00.186
+C Add\sthe\sSQLITE_MEM5_FAILOVER\scompile-time\soption,\swhich\sif\senabled\sallows\nMEMSYS5\sto\sgo\sout\sto\sthe\ssystem\sheap\sif\sit\sis\sunable\sto\sfulfill\san\sallocation\nrequest.
+D 2025-02-18T20:27:04.279
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+F auto.def eddf6aef976e2c1a56c0accc3244945e0b22ec6799074c40be160e5a9a5662b0
 F autoconf/Makefile.fallback 22fe523eb36dfce31e0f6349f782eb084e86a5620b2b0b4f84a2d6133f53f5ac
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-F autoconf/configure.ac ec7fa914c5e74ff212fe879f9bb6918e1234497e05facfb641f30c4d5893b277
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 F autoconf/tea/Makefile.in ba0556fee8da09c066bad85a4457904e46ee2c2eabaa309c0e83a78f2f151a8e
 F autoconf/tea/README.txt 61e62e519579e4a112791354d6d440f8b51ea6db3b0bab58d59f29df42d2dfe3
 F autoconf/tea/aclocal.m4 52c47aac44ce0ddb1f918b6993e8beb8eee88f43
-F autoconf/tea/configure.ac ff2d745f88e493080810b67958d88b4f7a7d79f19e2ee8e7f72ffd6fc04eabc7
+F autoconf/tea/configure.ac.in da18360dfdeac7414fa8deb549f3d65aeca0ae1150ff1a8b902019b39ce019a4
 F autoconf/tea/doc/sqlite3.n e1fe45d4f5286ee3d0ccc877aca2a0def488e9bb
 F autoconf/tea/license.terms 13bd403c9610fd2b76ece0ab50c4c5eda933d523
 F autoconf/tea/pkgIndex.tcl.in 55aec3c6d7e9a1de9b8d2fdc9c27fd055da3ac3a51b572195e2ae7300bcfd3a2
@@ -38,7 +37,7 @@ F autoconf/tea/win/rules.vc 94a18c3e453535459b4a643983acca52fb8756e79055bd2ad4b0
 F autoconf/tea/win/targets.vc 96a25a1fa6e9e9cfb348fd3760a5395b4ce8acafc8ed10f0412937ec200d5dbd
 F autosetup/LICENSE 41a26aebdd2cd185d1e2b210f71b7ce234496979f6b35aef2cbf6b80cbed4ce4
 F autosetup/README.autosetup a78ff8c4a3d2636a4268736672a74bf14a82f42687fcf0631a70c516075c031e
-F autosetup/README.md 1a02f5a94fd460eb7ffc8dea5d6f1657e38ddf8ffa2d6c5dce9a630b97021a69
+F autosetup/README.md b306314e8a87ccf873cb5b2a360c4a27bbf841df5b76f3acbd65322cff165476
 F autosetup/autosetup df8b53928b1fe3c67db5bc77c8e1eb8160c1b6a26c370e9a06c68748f803b7e4 x
 F autosetup/autosetup-config.guess dfa101c5e8220e864d5e9c72a85e87110df60260d36cb951ad0a85d6d9eaa463 x
 F autosetup/autosetup-config.sub a38fb074d0dece01cf919e9fb534a26011608aa8fa606490864295328526cd73 x
@@ -48,15 +47,16 @@ F autosetup/cc-db.tcl 6e0ed90146197a5a05b245e649975c07c548e30926b218ca3e1d4dc034
 F autosetup/cc-lib.tcl 493c5935b5dd3bf9bd4eca89b07c8b1b1a9356d61783035144e21795facf7360
 F autosetup/cc-shared.tcl 4f024e94a47f427ba61de1739f6381ef0080210f9fae89112d5c1de1e5460d78
 F autosetup/cc.tcl c0fcc50ca91deff8741e449ddad05bcd08268bc31177e613a6343bbd1fd3e45f
-F autosetup/jimsh0.c d40e381ea4526a067590e7b91bd4b2efa6d4980d286f908054c647b3df4aee14
+F autosetup/jimsh0.c 6573f6bc6ff204de0139692648d7037ca0b6c067bac83a7b4e087f20a86866a4
 F autosetup/pkg-config.tcl 4e635bf39022ff65e0d5434339dd41503ea48fc53822c9c5bde88b02d3d952ba
-F autosetup/proj.tcl 2e817159b997077cb79bd871f6255276b787558f386dfc0830b0f825f6a53767
+F autosetup/proj.tcl cef1e0aa0f2dee2042af66f28c97a9445f84d55d858ba9db4f6116846a1a325f
+F autosetup/sqlite-config.tcl e1d65cc632e1de94ff39618ac82b649f2062f674ca36dae78ab3573cab096761
 F autosetup/system.tcl 51d4be76cd9a9074704b584e5c9cbba616202c8468cf9ba8a4f8294a7ab1dba9
 F configure 9a00b21dfd13757bbfb8d89b30660a89ec1f8f3a79402b8f9f9b6fc475c3303a x
 F contrib/sqlitecon.tcl 210a913ad63f9f991070821e599d600bd913e0ad
 F doc/F2FS.txt c1d4a0ae9711cfe0e1d8b019d154f1c29e0d3abfe820787ba1e9ed7691160fcd
 F doc/compile-for-unix.md c9dce1ddd4bf0d25efccc5c63eb047e78c01ce06a6ff29c73e0a8af4a0f4adbc
-F doc/compile-for-windows.md 31cddda1d5f34027f1f2b7484d580e7558f22a9875884805b6fdc84d56cab848
+F doc/compile-for-windows.md 5141661e783c9ca9e3fd30e813345898712f5c311d71316f183db87038fa28a6
 F doc/json-enhancements.md e356fc834781f1f1aa22ee300027a270b2c960122468499bf347bb123ce1ea4f
 F doc/jsonb.md 5fab4b8613aa9153fbeb6259297bd4697988af8b3d23900deba588fa7841456b
 F doc/lemon.html 8b266ff711d2ec7f867c3dca37634963f48a630329908cc282beebfa8c708706
@@ -78,16 +78,16 @@ F ext/fts3/README.content b9078d0843a094d86af0d48dffbff13c906702b4c3558012e67b9c
 F ext/fts3/README.syntax a19711dc5458c20734b8e485e75fb1981ec2427a
 F ext/fts3/README.tokenizers b92bdeb8b46503f0dd301d364efc5ef59ef9fa8e2758b8e742f39fa93a2e422d
 F ext/fts3/README.txt 8c18f41574404623b76917b9da66fcb0ab38328d
-F ext/fts3/fts3.c 9f8ce82bbf4ec0636e6170e58f17b04817fa4c39b2d5126ac06f005d485f6d5e
+F ext/fts3/fts3.c 1da0265e8798f335165d54959459eeb69b6d32f586f85cf8795ab5d3b1292dcb
 F ext/fts3/fts3.h 3a10a0af180d502cecc50df77b1b22df142817fe
-F ext/fts3/fts3Int.h 968f7d7cae541a6926146e9fd3fb2b2ccbd3845b7890a8ed03de0c06ac776682
+F ext/fts3/fts3Int.h 2fe7c76dfd7d46dff964d17d3f4c53bca2116cf5d6252552ebbc22e38afdf4e0
 F ext/fts3/fts3_aux.c 7eab82a9cf0830f6551ba3abfdbe73ed39e322a4d3940ee82fbf723674ecd9f3
-F ext/fts3/fts3_expr.c 365849a2a1185e19028a9db2d9f1ea63efe909a3a6aca7ec86fc26a13a60bd58
+F ext/fts3/fts3_expr.c ebf7f2adead8cc54bc91deb41cb4a156874003078116f76631d65b87ff47464d
 F ext/fts3/fts3_hash.c 8b6e31bfb0844c27dc6092c2620bdb1fca17ed613072db057d96952c6bdb48b7
 F ext/fts3/fts3_hash.h 39cf6874dc239d6b4e30479b1975fe5b22a3caaf
 F ext/fts3/fts3_icu.c 305ce7fb6036484085b5556a9c8e62acdc7763f0f4cdf5fd538212a9f3720116
 F ext/fts3/fts3_porter.c e19807ce0ae31c1c6e9898e89ecc93183d7ec224ea101af039722a4f49e5f2b8
-F ext/fts3/fts3_snippet.c c38117a2e4dcc9485a170a57a6134423955247b230fef7073c46fa9c51239540
+F ext/fts3/fts3_snippet.c 7a3d5e2cefbb1cb51fb9c65458670cc269647ede18e1ffd57b513f9b4ec10c3e
 F ext/fts3/fts3_term.c 6a96027ad364001432545fe43322b6af04ed28bb5619ec51af1f59d0710d6d69
 F ext/fts3/fts3_test.c 7a9cb3d61774134211bf4bfdf1adcb581a1a0377f2d050a121ae7ab44baef0e3
 F ext/fts3/fts3_tokenize_vtab.c 7fd9ef364f257b97218b9c331f2378e307375c592f70fd541f714e747d944962
@@ -112,16 +112,16 @@ F ext/fts5/fts5_buffer.c 0eec58bff585f1a44ea9147eae5da2447292080ea435957f7488c70
 F ext/fts5/fts5_config.c e7d8dd062b44a66cd77e5a0f74f23a2354cd1f3f8575afb967b2773c3384f7f8
 F ext/fts5/fts5_expr.c 69b8d976058512c07dfe86e229521b7a871768157bd1607cedf1a5038dfd72c9
 F ext/fts5/fts5_hash.c adda4272be401566a6e0ba1acbe70ee5cb97fce944bc2e04dc707152a0ec91b1
-F ext/fts5/fts5_index.c f1f6da5938af616e0a5e54f0423a3134df95b9f17ac1c6ebf2e2e8132bbc75b9
-F ext/fts5/fts5_main.c 9a1daef7247f9b8a50b4159323e340efa6b0e4bea4fcd83580480f94d4f2c888
+F ext/fts5/fts5_index.c b7827b32e0e1e1ff7d7cb27c5d0480426a01c8ec4e89fd7e106bb463e2b63dd1
+F ext/fts5/fts5_main.c b0e95a793f3c649d313c536269403e1a413ee665223adb5f8196edd2bc1146f7
 F ext/fts5/fts5_storage.c 1ad05dab4830a4e2eaf2900bb143477f93bc17437093582f36f4b818809e88d8
 F ext/fts5/fts5_tcl.c 7fb5a3d3404099075aaa2457307cb459bbc257c0de3dbd52b1e80a5b503e0329
-F ext/fts5/fts5_test_mi.c 08c11ec968148d4cb4119d96d819f8c1f329812c568bac3684f5464be177d3ee
+F ext/fts5/fts5_test_mi.c d35fdd50db99a775a040fb57127a45adc968e97da94ae784eec664256ac86db2
 F ext/fts5/fts5_test_tok.c 3cb0a9b508b30d17ef025ccddd26ae3dc8ddffbe76c057616e59a9aa85d36f3b
 F ext/fts5/fts5_tokenize.c 49aea8cc400a690a6c4f83c4cedc67f4f8830c6789c4ee343404f62bcaebca7b
 F ext/fts5/fts5_unicode2.c 6f9b0fb79a8facaed76628ffd4eb9c16d7f2b84b52872784f617cf3422a9b043
 F ext/fts5/fts5_varint.c e64d2113f6e1bfee0032972cffc1207b77af63319746951bf1d09885d1dadf80
-F ext/fts5/fts5_vocab.c e4830b00809e5da53bc10f93adc59e321407b0f801c7f4167c0e47f5552267e0
+F ext/fts5/fts5_vocab.c ff0441c4ea165081e8152dec6d29056faa0cdc281a9f218a00e3d7aacc1958bc
 F ext/fts5/fts5parse.y eb526940f892ade5693f22ffd6c4f2702543a9059942772526eac1fde256bb05
 F ext/fts5/mkportersteps.tcl 5acf962d2e0074f701620bb5308155fa1e4a63ba
 F ext/fts5/test/fts5_common.tcl c5aa7cf7148b6dcffb5b61520ae18212baf169936af734ab265143f59db328fe
@@ -191,7 +191,7 @@ F ext/fts5/test/fts5faultE.test 844586ce71dab4be85bb86880e87b624d089f851654cd22e
 F ext/fts5/test/fts5faultF.test 4abef99f86e99d9f0c6460dd68c586a766b6b9f1f660ada55bf2e8266bd1bbc1
 F ext/fts5/test/fts5faultG.test 0544411ffcb3e19b42866f757a8a5e0fb8fef3a62c06f61d14deebc571bb7ea9
 F ext/fts5/test/fts5faultH.test 2b2b5b8cb1b3fd7679f488c06e22af44107fbc6137eaf45b3e771dc7b149312d
-F ext/fts5/test/fts5faultI.test 0706b307b208638554c9e65b4091e1c0dd8c92941535089a301df454ff2c56f4
+F ext/fts5/test/fts5faultI.test 9b33d664bccee4bbde0f275a48b2df3ea2f05d41f6d1d171aa2e844382cba621
 F ext/fts5/test/fts5first.test bfd685b96905bf541d99d8644e0a7219d1d833455a08ab64e344071a613b6ba9
 F ext/fts5/test/fts5full.test 97d263c1072f4a560929cca31e70f65d2ae232610e17e6affcf7e979df59547b
 F ext/fts5/test/fts5fuzz1.test 238d8c45f3b81342aa384de3e581ff2fa330bf922a7b69e484bbc06051a1080e
@@ -203,10 +203,10 @@ F ext/fts5/test/fts5lastrowid.test f36298a1fb9f988bde060a274a7ce638faa9c38a31400
 F ext/fts5/test/fts5leftjoin.test c0b4cafb9661379e576dc4405c0891d8fcc2782680740513c4d1fc114b43d4ad
 F ext/fts5/test/fts5limits.test 8ab67cf5d311c124b6ceb0062d0297767176df4572d955fce79fa43004dff01c
 F ext/fts5/test/fts5locale.test 83ba7ee12628b540d3098f39c39c1de0c0440eddff8f7512c8c698d0c4a3ae3c
-F ext/fts5/test/fts5matchinfo.test 877520582feb86bbfd95ab780099bcba4526f18ac75ee34979144cf86ba3a5a3
+F ext/fts5/test/fts5matchinfo.test 7806f6d521bb49bcb54fff88a50f137866f7000c96ccfd28500caa47b63cb0aa
 F ext/fts5/test/fts5merge.test 2654df0bcdb2d117c2d38b6aeb0168061be01c643f9e9194b36c43a2970e8082
 F ext/fts5/test/fts5merge2.test 3ebad1a59d6ad3fb66eff6523a09e95dc6367cbefb3cd73196801dea0425c8e2
-F ext/fts5/test/fts5misc.test 8c3cc771f773dc4bb4973620c51e7729e324ca2cc80eb8894f1c2c605e361f0b
+F ext/fts5/test/fts5misc.test f4dee7da898d605a6488c5b7afaace3158ed6bb9addff78faa1b37b402b77fb9
 F ext/fts5/test/fts5multi.test a15bc91cdb717492e6e1b66fec1c356cb57386b980c7ba5af1915f97fe878581
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 F ext/fts5/test/fts5near.test 33d60867581066e5db7016deb5d651628125d7ff4e0233a88175aa5b65874c74
@@ -298,7 +298,7 @@ F ext/jni/src/org/sqlite/jni/capi/AggregateFunction.java 0b72cdff61533b564d65b63
 F ext/jni/src/org/sqlite/jni/capi/AuthorizerCallback.java c045a5b47e02bb5f1af91973814a905f12048c428a3504fbc5266d1c1be3de5a
 F ext/jni/src/org/sqlite/jni/capi/AutoExtensionCallback.java 74cc4998a73d6563542ecb90804a3c4f4e828cb4bd69e61226d1a51f4646e759
 F ext/jni/src/org/sqlite/jni/capi/BusyHandlerCallback.java 7b8e19810c42b0ad21a04b5d8c804b32ee5905d137148703f16a75b612c380ca
-F ext/jni/src/org/sqlite/jni/capi/CApi.java 27bbd944ea8c147afd25b93f17dc397f3627611ebe2878944a32ffeffc98e99e
+F ext/jni/src/org/sqlite/jni/capi/CApi.java 8620c652138b84af795fd65bc200028590f533407c093d4355f9524dc594c004
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 F ext/jni/src/org/sqlite/jni/capi/CollationNeededCallback.java 5bfa226a8e7a92e804fd52d6e42b4c7b875fa7a94f8e2c330af8cc244a8920ab
@@ -400,7 +400,7 @@ F ext/misc/README.md d6dd0fe1d8af77040216798a6a2b0c46c73054d2f0ea544fbbcdccf6f23
 F ext/misc/amatch.c 5001711cbecdd57b288cb613386789f3034e5beb58fbe0c79f2b3d643ffd4e03
 F ext/misc/anycollseq.c 5ffdfde9829eeac52219136ad6aa7cd9a4edb3b15f4f2532de52f4a22525eddb
 F ext/misc/appendvfs.c 9642c7a194a2a25dca7ad3e36af24a0a46d7702168c4ad7e59c9f9b0e16a3824
-F ext/misc/base64.c 95abb0547cb1799d9851f3357c8d7fc3c09a95c63c8772aa3acd5f65f12050f6
+F ext/misc/base64.c 73c31eb325c71bae2e27276565e3f674fc095d8b0d7a651becb3b241a4d2fa57
 F ext/misc/base85.c a70c885c5c9350261ea6e7b166038eab21a09cf4fceae856ce41fae9c2213b60
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 F ext/misc/blobio.c a867c4c4617f6ec223a307ebfe0eabb45e0992f74dd47722b96f3e631c0edb2a
@@ -442,7 +442,7 @@ F ext/misc/shathree.c f3a778f27bf3e71b666a77f28e463a3b931c4dbe4219447e61bb678b4b
 F ext/misc/showauth.c 732578f0fe4ce42d577e1c86dc89dd14a006ab52
 F ext/misc/spellfix.c bcc42ef3fd29429bc01a83e751332b8d4690e65d45008449bdffe7656371487f
 F ext/misc/sqlar.c a6175790482328171da47095f87608b48a476d4fac78d8a9ff18b03a2454f634
-F ext/misc/sqlite3_stdio.c 5657afb6ec81bef31790973528980af778e0e1388a93db780d33007336efe6e6
+F ext/misc/sqlite3_stdio.c 0fe5a45bd332b30aef2b68c64edbe69e31e9c42365b0fa79ce95a034bca6fbb0
 F ext/misc/sqlite3_stdio.h f05eaf5e0258f0573910324a789a9586fc360a57678c57a6d63cfaa2245b6176
 F ext/misc/stmt.c b090086cd6bd6281c21271d38d576eeffe662f0e6b67536352ce32bbaa438321
 F ext/misc/stmtrand.c 59cffa5d8e158943ff1ce078956d8e208e8c04e67307e8f249dece2436dcb7fc
@@ -454,7 +454,7 @@ F ext/misc/urifuncs.c f71360d14fa9e7626b563f1f781c6148109462741c5235ac63ae0f8917
 F ext/misc/uuid.c 5bb2264c1b64d163efa46509544fd7500cb8769cb7c16dd52052da8d961505cf
 F ext/misc/vfslog.c 3932ab932eeb2601dbc4447cb14d445aaa9fbe43b863ef5f014401c3420afd20
 F ext/misc/vfsstat.c a85df08654743922a19410d7b1e3111de41bb7cd07d20dd16eda4e2b808d269d
-F ext/misc/vfstrace.c 9c4abd2f67ae2760e7a241eca2e8517c64480ac2c3e66a499326e688a9bbee22
+F ext/misc/vfstrace.c a73386403c350b210dc788a2d23a0f5cc89c49b176109a66af11b5078c116331
 F ext/misc/vtablog.c 1100250ce8782db37c833e3a9a5c9a3ecf1af5e15b8325572b82e6e0a138ffb5
 F ext/misc/vtshim.c 1976e6dd68dd0d64508c91a6dfab8e75f8aaf6cd
 F ext/misc/wholenumber.c 0fa0c082676b7868bf2fa918e911133f2b349bcdceabd1198bba5f65b4fc0668
@@ -576,14 +576,14 @@ F ext/rtree/visual01.txt e9c2564083bcd30ec51b07f881bffbf0e12b50a3f6fced0c222c5c1
 F ext/session/changeset.c 7a1e6a14c7e92d36ca177e92e88b5281acd709f3b726298dc34ec0fb58869cb5
 F ext/session/changesetfuzz.c 227076ab0ae4447d742c01ee88a564da6478bbf26b65108bf8fac9cd8b0b24aa
 F ext/session/changesetfuzz1.test 15b629004e58d5ffcc852e6842a603775bb64b1ce51254831f3d12b113b616cd
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 F ext/session/session8.test 326f3273abf9d5d2d7d559eee8f5994c4ea74a5d935562454605e6607ee29904
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 F ext/session/sessionC.test f8a5508bc059ae646e5ec9bdbca66ad24bc92fe99fda5790ac57e1f59fce2fdf
@@ -592,7 +592,8 @@ F ext/session/sessionE.test b2010949c9d7415306f64e3c2072ddabc4b8250c98478d3c0c4d
 F ext/session/sessionF.test d37ed800881e742c208df443537bf29aa49fd56eac520d0f0c6df3e6320f3401
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 F ext/session/sessionH.test 71bbff6b1abb2c4ac62b84dee53273c37e0b21e5fde3aed80929403e091ef859
-F ext/session/session_common.tcl e5598096425486b363718e2cda48ee85d660c96b4f8ea9d9d7a4c3ef514769da
+F ext/session/session_common.tcl a31f537a929a695a852d241c9434f2847cadf329856401921139fbb03a5a7697
+F ext/session/session_gen.test 942a0002df10da53c45b40b581cc3ed25e7ff42bda1e7ba497273dc2887aa8e6
 F ext/session/session_speed_test.c dcf0ef58d76b70c8fbd9eab3be77cf9deb8bc1638fed8be518b62d6cbdef88b3
 F ext/session/sessionalter.test e852acb3d2357aac7d0b920a2109da758c4331bfdf85b41d39aa3a8c18914f65
 F ext/session/sessionat.test 00c8badb35e43a2f12a716d2734a44d614ff62361979b6b85419035bc04b45ee
@@ -606,7 +607,7 @@ F ext/session/sessionfault2.test b0d6a7c1d7398a7e800d84657404909c7d385965ea8576d
 F ext/session/sessionfault3.test ce0b5d182133935c224d72507dbf1c5be1a1febf7e85d0b0fbd6d2f724b32b96
 F ext/session/sessioninvert.test 04075517a9497a80d39c495ba6b44f3982c7371129b89e2c52219819bc105a25
 F ext/session/sessionmem.test f2a735db84a3e9e19f571033b725b0b2daf847f3f28b1da55a0c1a4e74f1de09
-F ext/session/sessionnoact.test 0f552bd318b764bbc5b2cd6f3518435254a1c830fdaa5aab9c688f507ebc301e
+F ext/session/sessionnoact.test 4c7ae5c7d351cb5323bca62b6b095592ad24bd90a6713c178b62ab0063d23e19
 F ext/session/sessionnoop.test a9366a36a95ef85f8a3687856ebef46983df399541174cb1ede2ee53b8011bc7
 F ext/session/sessionnoop2.test de4672dce88464396ec9f30ed08c6c01643a69c53ae540fadbbf6d30642d64e8
 F ext/session/sessionrebase.test 702378bdcb5062f1106e74457beca8797d09c113a81768734a58b197b5b334e2
@@ -614,13 +615,13 @@ F ext/session/sessionrowid.test 85187c2f1b38861a5844868126f69f9ec62223a03449a98a
 F ext/session/sessionsize.test 8fcf4685993c3dbaa46a24183940ab9f5aa9ed0d23e5fb63bfffbdb56134b795
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 F ext/session/sessionwor.test 6fd9a2256442cebde5b2284936ae9e0d54bde692d0f5fd009ecef8511f4cf3fc
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@@ -630,24 +631,24 @@ F ext/wasm/api/EXPORTED_FUNCTIONS.sqlite3-core 2bcbbfe3b95c043ed6037e2708a2ee078
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 F src/window.c 2bf01f9941a64fbcead61a0e3cb5db3fca5094b30d2ff0d23274c2a81d2e2385
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 F test/affinity2.test ce1aafc86e110685b324e9a763eab4f2a73f737842ec3b687bd965867de90627
@@ -925,7 +925,7 @@ F test/auth2.test 9eb7fce9f34bf1f50d3f366fb3e606be5a2000a1
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 F test/autoindex4.test 3c2105e9172920e26f950ba3c5823e4972190e022c1e6f260ba476b0af24c593
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 F test/cacheflush.test af25bb1509df04c1da10e38d8f322d66eceedf61
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 F test/capi3d.test 8b778794af891b0dca3d900bd345fbc8ebd2aa2aae425a9dccdd10d5233dfbde
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 F test/date4.test 75dc8401e8c0639a228cd26a6eaa4ff5ea8ccda912b9853d1c9462c476670e17
@@ -1153,7 +1153,7 @@ F test/fkey2.test 1063d65e5923c054cfb8f0555a92a3ae0fa8c067275a33ee1715bd856cdb30
 F test/fkey3.test 76d475c80b84ee7a5d062e56ccb6ea68882e2b49
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 F test/fkey_malloc.test 594a7ea1fbab553c036c70813cd8bd9407d63749
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 F test/in4.test bb767ec1cfd1730256f0a83219f0acda36bc251b63f8b8bb7d8c7cff17875a4f
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 F test/incrblob.test c9b96afc292aeff43d6687bcb09b0280aa599822
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 F test/incrblob3.test 67621a04b3084113bf38ce03797d70eca012d9d8f948193b8f655df577b0da6f
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 F test/literal.test a65dca9fef86e51b8e45544268e37abbd4bb94ba35fd65f6fdcab2f288cd8f79
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 F test/snapshot.test a504f2e7009f512ef66c719f0ea1c55a556bdaf1e1312c80a04d46fc1a3e9632
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 F test/snapshot3.test 41350216abc6c7da37113ad462259c070786e5ad70bdc8709daaed148b1b3a2c
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 F test/speed4.test abc0ad3399dcf9703abed2fff8705e4f8e416715
 F test/speed4p.explain 6b5f104ebeb34a038b2f714150f51d01143e59aa
 F test/speed4p.test 377a0c48e5a92e0b11c1c5ebb1bc9d83a7312c922bc0cb05970ef5d6a96d1f0c
-F test/speedtest1.c cc503febbb8559d541a67d7a33d3d7bb8a2c8cbbfc89eb336e2e2bd6ad6a63ee
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 F test/spellfix.test 951a6405d49d1a23d6b78027d3877b4a33eeb8221dcab5704b499755bb4f552e
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 F test/spellfix3.test 0f9efaaa502a0e0a09848028518a6fb096c8ad33
@@ -1685,7 +1687,7 @@ F test/spellfix4.test 51c7c26514ade169855c66bcf130bd5acfb4d7fd090cc624645ab275ae
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 F test/sqllog.test 6af6cb0b09f4e44e1917e06ce85be7670302517a
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 F test/startup.c 1beb5ca66fcc0fce95c3444db9d1674f90fc605499a574ae2434dcfc10d22805
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 F test/statfault.test 064f43379e4992b5221b7d9ac887c313b3191f85cce605d78e416fc4045da64e
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 F test/temptrigger.test 38f0ca479b1822d3117069e014daabcaacefffcc
 F test/tester.tcl 7b44f1a9b9a2de8112695b908afc21dd9a68cd2d44e84b73f1b27b53492c0d59
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 F test/thread001.test a0985c117eab62c0c65526e9fa5d1360dd1cac5b03bde223902763274ce21899
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 F test/thread003.test ee4c9efc3b86a6a2767516a37bd64251272560a7
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 F test/tpch01.test 4479008f85f6f8f25f7ab2cb305d665752b4727fa28a8df3d8e0ad46520c62ff
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 F test/trace2.test f5cb67ad3bc09e0c58e8cca78dfd0b5639259983
-F test/trace3.test 4f418ed30d15d9d17dcf13a17f0bd99a92e3038e038798e35db7525f82f4c281
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 F test/trans.test 45f6f9ab6f66a7b5744f1caac06b558f95da62501916906cf55586a896f9f439
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 F test/trans3.test 91a100e5412b488e22a655fe423a14c26403ab94
@@ -2088,7 +2090,7 @@ F test/with2.test 181674a6cc86a601ca2ac052741cdfad5b529e07e870435d2f6cdb92d589ff
 F test/with3.test e30369ea27aa27eb1bda4c5e510c8a9f782c8afd2ab99d1a02b8a7f25a5d3e65
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 F test/with5.test 6248213c41fab36290b5b73aa3f937309dfba337004d9d8434c3fabc8c7d4be8
-F test/with6.test 9ff3503c3ff7cd459dc4852a02aaefa998dccace53f4142a0eb726174ad5984a
+F test/with6.test 281e4861b5e517f6c3c2f08517a520c1e2ee7c11966545d3901f258a4fe8ef76
 F test/withM.test 693b61765f2b387b5e3e24a4536e2e82de15ff64
 F test/without_rowid1.test a5210b8770dc4736bca4e74bc96588f43025ad03ad6a80f885afd36d9890e217
 F test/without_rowid2.test af260339f79d13cb220288b67cd287fbcf81ad99
@@ -2110,7 +2112,7 @@ F tool/GetTclKit.bat d84033c6a93dfe735d247f48ba00292a1cc284dcf69963e5e672444e045
 F tool/Replace.cs 02c67258801c2fb5f63231e0ac0f220b4b36ba91
 F tool/build-all-msvc.bat c817b716e0edeecaf265a6775b63e5f45c34a6544f1d4114a222701ed5ac79ab x
 F tool/build-shell.sh 369c4b171cc877ad974fef691e4da782b4c1e99fe8f4361316c735f64d49280f
-F tool/buildtclext.tcl e82120d672b34b507e1d9cb220ce18c5c36c3ee0ff0328e35f1806ce74ed2266
+F tool/buildtclext.tcl 20726b6b73c7911baa8519a9467b4062104339a5ce57947819884525c56d79e3
 F tool/cg_anno.tcl c1f875f5a4c9caca3d59937b16aff716f8b1883935f1b4c9ae23124705bc8099 x
 F tool/checkSpacing.c 810e51703529a204fc4e1eb060e9ab663e3c06d2
 F tool/cktclsh.sh 6075eef9c6b9ba4b38fef2ca2a66d25f2311bd3c610498d18a9b01f861629cca
@@ -2119,7 +2121,7 @@ F tool/custom.txt 24ed55e71c5edae0067ba159bbf09240d58b160331f7716e95816cd3aa0ba5
 F tool/dbhash.c 5da0c61032d23d74f2ab84ffc5740f0e8abec94f2c45c0b4306be7eb3ae96df0
 F tool/dbtotxt.c ca48d34eaca6d6b6e4bd6a7be2b72caf34475869054240244c60fa7e69a518d6
 F tool/dbtotxt.md c9a57af8739957ef36d2cfad5c4b1443ff3688ed33e4901ee200c8b651f43f3c
-F tool/emcc.sh.in 1f3226166bad1765c0bf42fac3d29037704c2078eb22562f9ddfbe73bff023b0
+F tool/emcc.sh.in 41a049468c8155433e37e656ba5bae063a000768b1d627025f277732c4e7c4a4
 F tool/enlargedb.c 3e8b2612b985cfa7e3e8800031ee191b43ae80de96abb5abbd5eada62651ee21
 F tool/extract-sqlite3h.tcl 069ceab0cee26cba99952bfa08c0b23e35941c837acabe143f0c355d96c9e2eb x
 F tool/extract.c 054069d81b095fbdc189a6f5d4466e40380505e2
@@ -2140,21 +2142,21 @@ F tool/logest.c c34e5944318415de513d29a6098df247a9618c96d83c38d4abd88641fe46e669
 F tool/max-limits.c cbb635fbb37ae4d05f240bfb5b5270bb63c54439
 F tool/merge-test.tcl de76b62f2de2a92d4c1ca4f976bce0aea6899e0229e250479b229b2a1914b176
 F tool/mkamalzip.tcl 8aa5ebe7973c8b8774062d34e15fea9815c4cc2ceea3a9b184695f005910876a
-F tool/mkautoconfamal.sh cbdcf993fa83dccbef7fb77b39cdeb31ef9f77d9d88c9e343b58d35ca3898a6a
+F tool/mkautoconfamal.sh c5e65fa1c922f2e3b3e4f6cd0331ec7d84bdef085f32cb1c46673cdf95ec8090
 F tool/mkccode.tcl 210159febe0ef0ecbc53c79833500663ceaba0115b2b374405818dc835b5f84b x
-F tool/mkctimec.tcl ef6a67ec82e5b6fc19152a4c79f237227b18bf67ff16d155bac7adb94355d9cf x
+F tool/mkctimec.tcl b57ab5c43cf6a46ba4030027da1cc73d7839e7b78da3b328545bc941bb62360b x
 F tool/mkkeywordhash.c 6b0be901c47f9ad42215fc995eb2f4384ac49213b1fba395102ec3e999acf559
 F tool/mkmsvcmin.tcl d76c45efda1cce2d4005bcea7b8a22bb752e3256009f331120fb4fecb14ebb7a
 F tool/mkopcodec.tcl 33d20791e191df43209b77d37f0ff0904620b28465cca6990cf8d60da61a07ef
 F tool/mkopcodeh.tcl 2b4e6967a670ef21bf53a164964c35c6163277d002a4c6f56fa231d68c88d023
 F tool/mkopts.tcl 680f785fdb09729fd9ac50632413da4eadbdf9071535e3f26d03795828ab07fa
-F tool/mkpragmatab.tcl 32e359ccb21011958a821955254bd7a5fa7915d01a8c16fed91ffc8b40cb4adf
-F tool/mkshellc.tcl 2bc29c201933ae72a16a79070fe80aded80c24ea487ecd2f8df20c2973c87bfc
+F tool/mkpragmatab.tcl 365ff4c0367b2fa686fdb20a1a03e36c697959c1ca854fc82af42b9056170893
+F tool/mkshellc.tcl 9ce74de0fa904a2c56a96f8d8b5261246bacb0eaa8d7e184f9e18ff94145ebbc
 F tool/mksourceid.c 36aa8020014aed0836fd13c51d6dc9219b0df1761d6b5f58ff5b616211b079b9
 F tool/mkspeedsql.tcl a1a334d288f7adfe6e996f2e712becf076745c97
-F tool/mksqlite3c-noext.tcl 4f7cfef5152b0c91920355cbfc1d608a4ad242cb819f1aea07f6d0274f584a7f
-F tool/mksqlite3c.tcl 9e88a30981280e33489fe4782f4ab1e5349ba1866603fba7f1a948d5599b9124
-F tool/mksqlite3h.tcl 5a8d23f35462bfcf74324a19465abd0ad6717b92a404d177160963c292df5d04
+F tool/mksqlite3c-noext.tcl 351c55256213154cabb051a3c870ef9f4487de905015141ae50dc7578a901b84
+F tool/mksqlite3c.tcl ba13086555b3cb835eba5e47a9250300ab85304d23fd1081abd3f29d8ab71a2b
+F tool/mksqlite3h.tcl b05b85c32295bad3fe64807729693d1f19faed3c464c5faac6c53bb6b972ac2f
 F tool/mksqlite3internalh.tcl eb994013e833359137eb53a55acdad0b5ae1049b
 F tool/mksrczip.tcl 81efd9974dbb36005383f2cd655520057a2ae5aa85ac2441a80c7c28f803ac52
 F tool/mktoolzip.tcl 34b4e92be544f820e2cc26f143f7d5aec511e826ec394cc82969a5dcf7c7a27c
@@ -2168,7 +2170,7 @@ F tool/replace.tcl 511c61acfe563dfb58675efb4628bb158a13d48ff8322123ac447e9d25a82
 F tool/restore_jrnl.tcl 1079ecba47cc82fa82115b81c1f68097ab1f956f357ee8da5fc4b2589af6bd98
 F tool/rollback-test.c 9fc98427d1e23e84429d7e6d07d9094fbdec65a5
 F tool/run-speed-test.sh f95d19fd669b68c4c38b6b475242841d47c66076
-F tool/showdb.c 81b04bfaa9a63665f75945947323aa68b820570aa156b1574f440fc8276092c6
+F tool/showdb.c 3956d71e5193162609a60e8c9edfcf09274c00cfea2b1d221261427adb2b5cca
 F tool/showjournal.c 5bad7ae8784a43d2b270d953060423b8bd480818
 F tool/showlocks.c 9cc5e66d4ebbf2d194f39db2527ece92077e86ae627ddd233ee48e16e8142564
 F tool/showshm.c a0ab6ec32dd1f11218ca2a4018f8fb875b59414801ab8ceed8b2e69b7b45a809
@@ -2183,7 +2185,7 @@ F tool/speedtest2.tcl ee2149167303ba8e95af97873c575c3e0fab58ff
 F tool/speedtest8.c 2902c46588c40b55661e471d7a86e4dd71a18224
 F tool/speedtest8inst1.c 7ce07da76b5e745783e703a834417d725b7d45fd
 F tool/spellsift.tcl 52b4b04dc4333c7ab024f09d9d66ed6b6f7c6eb00b38497a09f338fa55d40618 x
-F tool/split-sqlite3c.tcl 5aa60643afca558bc732b1444ae81a522326f91e1dc5665b369c54f09e20de60
+F tool/split-sqlite3c.tcl 07e18a1d8cc3f6b3a4a1f3528e63c9b29a5c8a7bca0b8d394b231da464ce1247
 F tool/sqldiff.c 2a0987d183027c795ced13d6749061c1d2f38e24eddb428f56fa64c3a8f51e4b
 F tool/sqlite3_analyzer.c.in fc7735c499d226a49d843d8209b2543e4e5229eeb71a674c331323a2217b65b4
 F tool/sqlite3_rsync.c 9a1cca2ab1271c59b37a6493c15dc1bcd0ab9149197a9125926bc08dd26b83fb
@@ -2191,9 +2193,9 @@ F tool/sqltclsh.c.in 1bcc2e9da58fadf17b0bf6a50e68c1159e602ce057210b655d50bad5aaa
 F tool/sqltclsh.tcl 862f4cf1418df5e1315b5db3b5ebe88969e2a784525af5fbf9596592f14ed848
 F tool/src-verify.c d00f93263aa2fa6ba0cba0106d95458e6effb94fdb5fc634f56834f90c05bbb4
 F tool/srcck1.c 371de5363b70154012955544f86fdee8f6e5326f
-F tool/srctree-check.tcl 1f1f505835a4beca64c1751a7ebec5c41a1ddf22b1e80481345b95059eef6583
+F tool/srctree-check.tcl fa4d82dd3e8a38d5cbce7d6ade8abef2f42b9eca0394484d521dc8d086739460
 F tool/stack_usage.tcl f8e71b92cdb099a147dad572375595eae55eca43
-F tool/stripccomments.c 20b8aabc4694d0d4af5566e42da1f1a03aff057689370326e9269a9ddcffdc37
+F tool/stripccomments.c dfe9cc03cf87728ac9836be30763f8aa52b82caca0780b3d3f3572e4643b01d3
 F tool/symbols-mingw.sh 4dbcea7e74768305384c9fd2ed2b41bbf9f0414d
 F tool/symbols.sh 1612bd947750e21e7b47befad5f6b3825b06cce0705441f903bf35ced65ae9b9
 F tool/tclConfigShToAutoDef.sh 44ec55046d86a3febb2cb3e099399b41794e80e9cd138eee7b9b016f819e882b x
@@ -2205,11 +2207,11 @@ F tool/version-info.c 3b36468a90faf1bbd59c65fd0eb66522d9f941eedd364fabccd7227350
 F tool/warnings-clang.sh bbf6a1e685e534c92ec2bfba5b1745f34fb6f0bc2a362850723a9ee87c1b31a7
 F tool/warnings.sh 49a486c5069de041aedcbde4de178293e0463ae9918ecad7539eedf0ec77a139
 F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
-P 315079b150b47e013e2cde4985bc39d24e0f6f6c6e60f9383fb8ea4ea897c67a
-R 0ed0cfcc7f2bc831da5d62a3490571ed
-T +sym-major-relase *
-T +sym-relase *
-T +sym-version-3.48.0 *
+P 15dc524fd4113026cc542140c39c1c8f9e052d36946f0c599f282d9ac27efdab
+R 1c6fc5fc5921c8f54e054da530ee60da
+T *branch * mem5-failover
+T *sym-mem5-failover *
+T -sym-trunk *
 U drh
-Z cc77aac977f98c5521d75f4212754ff8
+Z a3502dae1ff66c5ee52104389dd44963
 # Remove this line to create a well-formed Fossil manifest.
@@ -1 +1 @@
-d2fe6b05f38d9d7cd78c5d252e99ac59f1aea071d669830c1ffe4e8966e84010
+bdd8617b3f4a4dcec03095e1f8810bd020477378fde7bbc2556f7ed8c845dd4e
@@ -632,10 +632,8 @@ void sqlite3AlterRenameColumn(
  ** altered.  Set iCol to be the index of the column being renamed */
  zOld = sqlite3NameFromToken(db, pOld);
  if( !zOld ) goto exit_rename_column;
-  for(iCol=0; iCol<pTab->nCol; iCol++){
-    if( 0==sqlite3StrICmp(pTab->aCol[iCol].zCnName, zOld) ) break;
-  }
-  if( iCol==pTab->nCol ){
+  iCol = sqlite3ColumnIndex(pTab, zOld);
+  if( iCol<0 ){
    sqlite3ErrorMsg(pParse, "no such column: \"%T\"", pOld);
    goto exit_rename_column;
  }
@@ -215,7 +215,8 @@ static void openStatTable(
        sqlite3NestedParse(pParse,
            "CREATE TABLE %Q.%s(%s)", pDb->zDbSName, zTab, aTable[i].zCols
        );
-        aRoot[i] = (u32)pParse->regRoot;
+        assert( pParse->isCreate || pParse->nErr );
+        aRoot[i] = (u32)pParse->u1.cr.regRoot;
        aCreateTbl[i] = OPFLAG_P2ISREG;
      }
    }else{
@@ -406,7 +407,7 @@ static void statInit(
  int nCol;                       /* Number of columns in index being sampled */
  int nKeyCol;                    /* Number of key columns */
  int nColUp;                     /* nCol rounded up for alignment */
-  int n;                          /* Bytes of space to allocate */
+  i64 n;                          /* Bytes of space to allocate */
  sqlite3 *db = sqlite3_context_db_handle(context);   /* Database connection */
 #ifdef SQLITE_ENABLE_STAT4
  /* Maximum number of samples.  0 if STAT4 data is not collected */
@@ -156,7 +156,7 @@ static void attachFunc(
      if( aNew==0 ) return;
      memcpy(aNew, db->aDb, sizeof(db->aDb[0])*2);
    }else{
-      aNew = sqlite3DbRealloc(db, db->aDb, sizeof(db->aDb[0])*(db->nDb+1) );
+      aNew = sqlite3DbRealloc(db, db->aDb, sizeof(db->aDb[0])*(1+(i64)db->nDb));
      if( aNew==0 ) return;
    }
    db->aDb = aNew;
@@ -175,6 +175,12 @@ static void attachFunc(
      sqlite3_free(zErr);
      return;
    }
+    if( (db->flags & SQLITE_AttachWrite)==0 ){
+      flags &= ~(SQLITE_OPEN_CREATE|SQLITE_OPEN_READWRITE);
+      flags |= SQLITE_OPEN_READONLY;
+    }else if( (db->flags & SQLITE_AttachCreate)==0 ){
+      flags &= ~SQLITE_OPEN_CREATE;
+    }
    assert( pVfs );
    flags |= SQLITE_OPEN_MAIN_DB;
    rc = sqlite3BtreeOpen(pVfs, zPath, db, &pNew->pBt, 0, flags);
@@ -344,7 +344,7 @@ int sqlite3BitvecBuiltinTest(int sz, int *aOp){
  /* Allocate the Bitvec to be tested and a linear array of
  ** bits to act as the reference */
  pBitvec = sqlite3BitvecCreate( sz );
-  pV = sqlite3MallocZero( (sz+7)/8 + 1 );
+  pV = sqlite3MallocZero( (7+(i64)sz)/8 + 1 );
  pTmpSpace = sqlite3_malloc64(BITVEC_SZ);
  if( pBitvec==0 || pV==0 || pTmpSpace==0  ) goto bitvec_end;

@@ -729,7 +729,7 @@ static int saveCursorKey(BtCursor *pCur){
    ** below. */
    void *pKey;
    pCur->nKey = sqlite3BtreePayloadSize(pCur);
-    pKey = sqlite3Malloc( pCur->nKey + 9 + 8 );
+    pKey = sqlite3Malloc( ((i64)pCur->nKey) + 9 + 8 );
    if( pKey ){
      rc = sqlite3BtreePayload(pCur, 0, (int)pCur->nKey, pKey);
      if( rc==SQLITE_OK ){
@@ -6100,7 +6100,7 @@ bypass_moveto_root:
          rc = SQLITE_CORRUPT_PAGE(pPage);
          goto moveto_index_finish;
        }
-        pCellKey = sqlite3Malloc( nCell+nOverrun );
+        pCellKey = sqlite3Malloc( (u64)nCell+(u64)nOverrun );
        if( pCellKey==0 ){
          rc = SQLITE_NOMEM_BKPT;
          goto moveto_index_finish;
@@ -11289,6 +11289,7 @@ int sqlite3BtreeIsInBackup(Btree *p){
 */
 void *sqlite3BtreeSchema(Btree *p, int nBytes, void(*xFree)(void *)){
  BtShared *pBt = p->pBt;
+  assert( nBytes==0 || nBytes==sizeof(Schema) );
  sqlite3BtreeEnter(p);
  if( !pBt->pSchema && nBytes ){
    pBt->pSchema = sqlite3DbMallocZero(0, nBytes);
@@ -68,6 +68,7 @@ static SQLITE_NOINLINE void lockTable(
    }
  }

+  assert( pToplevel->nTableLock < 0x7fff0000 );
  nBytes = sizeof(TableLock) * (pToplevel->nTableLock+1);
  pToplevel->aTableLock =
      sqlite3DbReallocOrFree(pToplevel->db, pToplevel->aTableLock, nBytes);
@@ -168,10 +169,12 @@ void sqlite3FinishCoding(Parse *pParse){
       || sqlite3VdbeAssertMayAbort(v, pParse->mayAbort));
  if( v ){
    if( pParse->bReturning ){
-      Returning *pReturning = pParse->u1.pReturning;
+      Returning *pReturning;
      int addrRewind;
      int reg;

+      assert( !pParse->isCreate );
+      pReturning = pParse->u1.d.pReturning;
      if( pReturning->nRetCol ){
        sqlite3VdbeAddOp0(v, OP_FkCheck);
        addrRewind =
@@ -247,7 +250,9 @@ void sqlite3FinishCoding(Parse *pParse){
    }

    if( pParse->bReturning ){
-      Returning *pRet = pParse->u1.pReturning;
+      Returning *pRet;
+      assert( !pParse->isCreate );
+      pRet = pParse->u1.d.pReturning;
      if( pRet->nRetCol ){
        sqlite3VdbeAddOp2(v, OP_OpenEphemeral, pRet->iRetCur, pRet->nRetCol);
      }
@@ -1319,8 +1324,9 @@ void sqlite3StartTable(
    /* If the file format and encoding in the database have not been set,
    ** set them now.
    */
-    reg1 = pParse->regRowid = ++pParse->nMem;
-    reg2 = pParse->regRoot = ++pParse->nMem;
+    assert( pParse->isCreate );
+    reg1 = pParse->u1.cr.regRowid = ++pParse->nMem;
+    reg2 = pParse->u1.cr.regRoot = ++pParse->nMem;
    reg3 = ++pParse->nMem;
    sqlite3VdbeAddOp3(v, OP_ReadCookie, iDb, reg3, BTREE_FILE_FORMAT);
    sqlite3VdbeUsesBtree(v, iDb);
@@ -1335,8 +1341,8 @@ void sqlite3StartTable(
    ** The record created does not contain anything yet.  It will be replaced
    ** by the real entry in code generated at sqlite3EndTable().
    **
-    ** The rowid for the new entry is left in register pParse->regRowid.
-    ** The root page number of the new table is left in reg pParse->regRoot.
+    ** The rowid for the new entry is left in register pParse->u1.cr.regRowid.
+    ** The root page of the new table is left in reg pParse->u1.cr.regRoot.
    ** The rowid and root page number values are needed by the code that
    ** sqlite3EndTable will generate.
    */
@@ -1347,7 +1353,7 @@ void sqlite3StartTable(
 #endif
    {
      assert( !pParse->bReturning );
-      pParse->u1.addrCrTab =
+      pParse->u1.cr.addrCrTab =
         sqlite3VdbeAddOp3(v, OP_CreateBtree, iDb, reg2, BTREE_INTKEY);
    }
    sqlite3OpenSchemaTable(pParse, iDb);
@@ -1425,7 +1431,8 @@ void sqlite3AddReturning(Parse *pParse, ExprList *pList){
    sqlite3ExprListDelete(db, pList);
    return;
  }
-  pParse->u1.pReturning = pRet;
+  assert( !pParse->isCreate );
+  pParse->u1.d.pReturning = pRet;
  pRet->pParse = pParse;
  pRet->pReturnEL = pList;
  sqlite3ParserAddCleanup(pParse, sqlite3DeleteReturning, pRet);
@@ -1467,7 +1474,6 @@ void sqlite3AddColumn(Parse *pParse, Token sName, Token sType){
  char *zType;
  Column *pCol;
  sqlite3 *db = pParse->db;
-  u8 hName;
  Column *aNew;
  u8 eType = COLTYPE_CUSTOM;
  u8 szEst = 1;
@@ -1521,13 +1527,10 @@ void sqlite3AddColumn(Parse *pParse, Token sName, Token sType){
  memcpy(z, sName.z, sName.n);
  z[sName.n] = 0;
  sqlite3Dequote(z);
-  hName = sqlite3StrIHash(z);
-  for(i=0; i<p->nCol; i++){
-    if( p->aCol[i].hName==hName && sqlite3StrICmp(z, p->aCol[i].zCnName)==0 ){
-      sqlite3ErrorMsg(pParse, "duplicate column name: %s", z);
-      sqlite3DbFree(db, z);
-      return;
-    }
+  if( p->nCol && sqlite3ColumnIndex(p, z)>=0 ){
+    sqlite3ErrorMsg(pParse, "duplicate column name: %s", z);
+    sqlite3DbFree(db, z);
+    return;
  }
  aNew = sqlite3DbRealloc(db,p->aCol,((i64)p->nCol+1)*sizeof(p->aCol[0]));
  if( aNew==0 ){
@@ -1538,7 +1541,7 @@ void sqlite3AddColumn(Parse *pParse, Token sName, Token sType){
  pCol = &p->aCol[p->nCol];
  memset(pCol, 0, sizeof(p->aCol[0]));
  pCol->zCnName = z;
-  pCol->hName = hName;
+  pCol->hName = sqlite3StrIHash(z);
  sqlite3ColumnPropertiesFromName(p, pCol);

  if( sType.n==0 ){
@@ -1562,9 +1565,14 @@ void sqlite3AddColumn(Parse *pParse, Token sName, Token sType){
    pCol->affinity = sqlite3AffinityType(zType, pCol);
    pCol->colFlags |= COLFLAG_HASTYPE;
  }
+  if( p->nCol<=0xff ){
+    u8 h = pCol->hName % sizeof(p->aHx);
+    p->aHx[h] = p->nCol;
+  }
  p->nCol++;
  p->nNVCol++;
-  pParse->constraintName.n = 0;
+  assert( pParse->isCreate );
+  pParse->u1.cr.constraintName.n = 0;
 }

 /*
@@ -1828,15 +1836,11 @@ void sqlite3AddPrimaryKey(
      assert( pCExpr!=0 );
      sqlite3StringToId(pCExpr);
      if( pCExpr->op==TK_ID ){
-        const char *zCName;
        assert( !ExprHasProperty(pCExpr, EP_IntValue) );
-        zCName = pCExpr->u.zToken;
-        for(iCol=0; iCol<pTab->nCol; iCol++){
-          if( sqlite3StrICmp(zCName, pTab->aCol[iCol].zCnName)==0 ){
-            pCol = &pTab->aCol[iCol];
-            makeColumnPartOfPrimaryKey(pParse, pCol);
-            break;
-          }
+        iCol = sqlite3ColumnIndex(pTab, pCExpr->u.zToken);
+        if( iCol>=0 ){
+          pCol = &pTab->aCol[iCol];
+          makeColumnPartOfPrimaryKey(pParse, pCol);
        }
      }
    }
@@ -1888,8 +1892,10 @@ void sqlite3AddCheckConstraint(
   && !sqlite3BtreeIsReadonly(db->aDb[db->init.iDb].pBt)
  ){
    pTab->pCheck = sqlite3ExprListAppend(pParse, pTab->pCheck, pCheckExpr);
-    if( pParse->constraintName.n ){
-      sqlite3ExprListSetName(pParse, pTab->pCheck, &pParse->constraintName, 1);
+    assert( pParse->isCreate );
+    if( pParse->u1.cr.constraintName.n ){
+      sqlite3ExprListSetName(pParse, pTab->pCheck,
+                             &pParse->u1.cr.constraintName, 1);
    }else{
      Token t;
      for(zStart++; sqlite3Isspace(zStart[0]); zStart++){}
@@ -2084,7 +2090,8 @@ static void identPut(char *z, int *pIdx, char *zSignedIdent){
 ** from sqliteMalloc() and must be freed by the calling function.
 */
 static char *createTableStmt(sqlite3 *db, Table *p){
-  int i, k, n;
+  int i, k, len;
+  i64 n;
  char *zStmt;
  char *zSep, *zSep2, *zEnd;
  Column *pCol;
@@ -2108,8 +2115,9 @@ static char *createTableStmt(sqlite3 *db, Table *p){
    sqlite3OomFault(db);
    return 0;
  }
-  sqlite3_snprintf(n, zStmt, "CREATE TABLE ");
-  k = sqlite3Strlen30(zStmt);
+  assert( n>14 && n<=0x7fffffff );
+  memcpy(zStmt, "CREATE TABLE ", 13);
+  k = 13;
  identPut(zStmt, &k, p->zName);
  zStmt[k++] = '(';
  for(pCol=p->aCol, i=0; i<p->nCol; i++, pCol++){
@@ -2121,13 +2129,15 @@ static char *createTableStmt(sqlite3 *db, Table *p){
        /* SQLITE_AFF_REAL    */ " REAL",
        /* SQLITE_AFF_FLEXNUM */ " NUM",
    };
-    int len;
    const char *zType;

-    sqlite3_snprintf(n-k, &zStmt[k], zSep);
-    k += sqlite3Strlen30(&zStmt[k]);
+    len = sqlite3Strlen30(zSep);
+    assert( k+len<n );
+    memcpy(&zStmt[k], zSep, len);
+    k += len;
    zSep = zSep2;
    identPut(zStmt, &k, pCol->zCnName);
+    assert( k<n );
    assert( pCol->affinity-SQLITE_AFF_BLOB >= 0 );
    assert( pCol->affinity-SQLITE_AFF_BLOB < ArraySize(azType) );
    testcase( pCol->affinity==SQLITE_AFF_BLOB );
@@ -2142,11 +2152,14 @@ static char *createTableStmt(sqlite3 *db, Table *p){
    assert( pCol->affinity==SQLITE_AFF_BLOB
            || pCol->affinity==SQLITE_AFF_FLEXNUM
            || pCol->affinity==sqlite3AffinityType(zType, 0) );
+    assert( k+len<n );
    memcpy(&zStmt[k], zType, len);
    k += len;
    assert( k<=n );
  }
-  sqlite3_snprintf(n-k, &zStmt[k], "%s", zEnd);
+  len = sqlite3Strlen30(zEnd);
+  assert( k+len<n );
+  memcpy(&zStmt[k], zEnd, len+1);
  return zStmt;
 }

@@ -2339,9 +2352,9 @@ static void convertToWithoutRowidTable(Parse *pParse, Table *pTab){
  ** into BTREE_BLOBKEY.
  */
  assert( !pParse->bReturning );
-  if( pParse->u1.addrCrTab ){
+  if( pParse->u1.cr.addrCrTab ){
    assert( v );
-    sqlite3VdbeChangeP3(v, pParse->u1.addrCrTab, BTREE_BLOBKEY);
+    sqlite3VdbeChangeP3(v, pParse->u1.cr.addrCrTab, BTREE_BLOBKEY);
  }

  /* Locate the PRIMARY KEY index.  Or, if this table was originally
@@ -2781,7 +2794,7 @@ void sqlite3EndTable(

    /* If this is a CREATE TABLE xx AS SELECT ..., execute the SELECT
    ** statement to populate the new table. The root-page number for the
-    ** new table is in register pParse->regRoot.
+    ** new table is in register pParse->u1.cr.regRoot.
    **
    ** Once the SELECT has been coded by sqlite3Select(), it is in a
    ** suitable state to query for the column names and types to be used
@@ -2812,7 +2825,8 @@ void sqlite3EndTable(
      regRec = ++pParse->nMem;
      regRowid = ++pParse->nMem;
      sqlite3MayAbort(pParse);
-      sqlite3VdbeAddOp3(v, OP_OpenWrite, iCsr, pParse->regRoot, iDb);
+      assert( pParse->isCreate );
+      sqlite3VdbeAddOp3(v, OP_OpenWrite, iCsr, pParse->u1.cr.regRoot, iDb);
      sqlite3VdbeChangeP5(v, OPFLAG_P2ISREG);
      addrTop = sqlite3VdbeCurrentAddr(v) + 1;
      sqlite3VdbeAddOp3(v, OP_InitCoroutine, regYield, 0, addrTop);
@@ -2857,6 +2871,7 @@ void sqlite3EndTable(
    ** schema table.  We just need to update that slot with all
    ** the information we've collected.
    */
+    assert( pParse->isCreate );
    sqlite3NestedParse(pParse,
      "UPDATE %Q." LEGACY_SCHEMA_TABLE
      " SET type='%s', name=%Q, tbl_name=%Q, rootpage=#%d, sql=%Q"
@@ -2865,9 +2880,9 @@ void sqlite3EndTable(
      zType,
      p->zName,
      p->zName,
-      pParse->regRoot,
+      pParse->u1.cr.regRoot,
      zStmt,
-      pParse->regRowid
+      pParse->u1.cr.regRowid
    );
    sqlite3DbFree(db, zStmt);
    sqlite3ChangeCookie(pParse, iDb);
@@ -3838,7 +3853,7 @@ Index *sqlite3AllocateIndexObject(
  char **ppExtra       /* Pointer to the "extra" space */
 ){
  Index *p;            /* Allocated index object */
-  int nByte;           /* Bytes of space for Index object + arrays */
+  i64 nByte;           /* Bytes of space for Index object + arrays */

  nByte = ROUND8(sizeof(Index)) +              /* Index structure  */
          ROUND8(sizeof(char*)*nCol) +         /* Index.azColl     */
@@ -4691,7 +4706,6 @@ void sqlite3IdListDelete(sqlite3 *db, IdList *pList){
  int i;
  assert( db!=0 );
  if( pList==0 ) return;
-  assert( pList->eU4!=EU4_EXPR ); /* EU4_EXPR mode is not currently used */
  for(i=0; i<pList->nId; i++){
    sqlite3DbFree(db, pList->a[i].zName);
  }
@@ -302,12 +302,18 @@ static int matchQuality(
  u8 enc          /* Desired text encoding */
 ){
  int match;
-  assert( p->nArg>=-1 );
+  assert( p->nArg>=(-4) && p->nArg!=(-2) );
+  assert( nArg>=(-2) );

  /* Wrong number of arguments means "no match" */
  if( p->nArg!=nArg ){
-    if( nArg==(-2) ) return (p->xSFunc==0) ? 0 : FUNC_PERFECT_MATCH;
+    if( nArg==(-2) ) return p->xSFunc==0 ? 0 : FUNC_PERFECT_MATCH;
    if( p->nArg>=0 ) return 0;
+    /* Special p->nArg values available to built-in functions only:
+    **    -3     1 or more arguments required
+    **    -4     2 or more arguments required
+    */
+    if( p->nArg<(-2) && nArg<(-2-p->nArg) ) return 0;
  }

  /* Give a better score to a function with a specific number of arguments
@@ -1,796 +0,0 @@
-/* DO NOT EDIT!
-** This file is automatically generated by the script in the canonical
-** SQLite source tree at tool/mkctimec.tcl.
-**
-** To modify this header, edit any of the various lists in that script
-** which specify categories of generated conditionals in this file.
-*/
-
-/*
-** 2010 February 23
-**
-** 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 routines used to report what compile-time options
-** SQLite was built with.
-*/
-#ifndef SQLITE_OMIT_COMPILEOPTION_DIAGS /* IMP: R-16824-07538 */
-
-/*
-** Include the configuration header output by 'configure' if we're using the
-** autoconf-based build
-*/
-#if defined(_HAVE_SQLITE_CONFIG_H) && !defined(SQLITECONFIG_H)
-#include "sqlite_cfg.h"
-#define SQLITECONFIG_H 1
-#endif
-
-/* These macros are provided to "stringify" the value of the define
-** for those options in which the value is meaningful. */
-#define CTIMEOPT_VAL_(opt) #opt
-#define CTIMEOPT_VAL(opt) CTIMEOPT_VAL_(opt)
-
-/* Like CTIMEOPT_VAL, but especially for SQLITE_DEFAULT_LOOKASIDE. This
-** option requires a separate macro because legal values contain a single
-** comma. e.g. (-DSQLITE_DEFAULT_LOOKASIDE="100,100") */
-#define CTIMEOPT_VAL2_(opt1,opt2) #opt1 "," #opt2
-#define CTIMEOPT_VAL2(opt) CTIMEOPT_VAL2_(opt)
-#include "sqliteInt.h"
-
-/*
-** An array of names of all compile-time options.  This array should 
-** be sorted A-Z.
-**
-** This array looks large, but in a typical installation actually uses
-** only a handful of compile-time options, so most times this array is usually
-** rather short and uses little memory space.
-*/
-static const char * const sqlite3azCompileOpt[] = {
-
-#ifdef SQLITE_32BIT_ROWID
-  "32BIT_ROWID",
-#endif
-#ifdef SQLITE_4_BYTE_ALIGNED_MALLOC
-  "4_BYTE_ALIGNED_MALLOC",
-#endif
-#ifdef SQLITE_ALLOW_COVERING_INDEX_SCAN
-# if SQLITE_ALLOW_COVERING_INDEX_SCAN != 1
-  "ALLOW_COVERING_INDEX_SCAN=" CTIMEOPT_VAL(SQLITE_ALLOW_COVERING_INDEX_SCAN),
-# endif
-#endif
-#ifdef SQLITE_ALLOW_ROWID_IN_VIEW
-  "ALLOW_ROWID_IN_VIEW",
-#endif
-#ifdef SQLITE_ALLOW_URI_AUTHORITY
-  "ALLOW_URI_AUTHORITY",
-#endif
-#ifdef SQLITE_ATOMIC_INTRINSICS
-  "ATOMIC_INTRINSICS=" CTIMEOPT_VAL(SQLITE_ATOMIC_INTRINSICS),
-#endif
-#ifdef SQLITE_BITMASK_TYPE
-  "BITMASK_TYPE=" CTIMEOPT_VAL(SQLITE_BITMASK_TYPE),
-#endif
-#ifdef SQLITE_BUG_COMPATIBLE_20160819
-  "BUG_COMPATIBLE_20160819",
-#endif
-#ifdef SQLITE_CASE_SENSITIVE_LIKE
-  "CASE_SENSITIVE_LIKE",
-#endif
-#ifdef SQLITE_CHECK_PAGES
-  "CHECK_PAGES",
-#endif
-#if defined(__clang__) && defined(__clang_major__)
-  "COMPILER=clang-" CTIMEOPT_VAL(__clang_major__) "."
-                    CTIMEOPT_VAL(__clang_minor__) "."
-                    CTIMEOPT_VAL(__clang_patchlevel__),
-#elif defined(_MSC_VER)
-  "COMPILER=msvc-" CTIMEOPT_VAL(_MSC_VER),
-#elif defined(__GNUC__) && defined(__VERSION__)
-  "COMPILER=gcc-" __VERSION__,
-#endif
-#ifdef SQLITE_COVERAGE_TEST
-  "COVERAGE_TEST",
-#endif
-#ifdef SQLITE_DEBUG
-  "DEBUG",
-#endif
-#ifdef SQLITE_DEFAULT_AUTOMATIC_INDEX
-  "DEFAULT_AUTOMATIC_INDEX",
-#endif
-#ifdef SQLITE_DEFAULT_AUTOVACUUM
-  "DEFAULT_AUTOVACUUM",
-#endif
-#ifdef SQLITE_DEFAULT_CACHE_SIZE
-  "DEFAULT_CACHE_SIZE=" CTIMEOPT_VAL(SQLITE_DEFAULT_CACHE_SIZE),
-#endif
-#ifdef SQLITE_DEFAULT_CKPTFULLFSYNC
-  "DEFAULT_CKPTFULLFSYNC",
-#endif
-#ifdef SQLITE_DEFAULT_FILE_FORMAT
-  "DEFAULT_FILE_FORMAT=" CTIMEOPT_VAL(SQLITE_DEFAULT_FILE_FORMAT),
-#endif
-#ifdef SQLITE_DEFAULT_FILE_PERMISSIONS
-  "DEFAULT_FILE_PERMISSIONS=" CTIMEOPT_VAL(SQLITE_DEFAULT_FILE_PERMISSIONS),
-#endif
-#ifdef SQLITE_DEFAULT_FOREIGN_KEYS
-  "DEFAULT_FOREIGN_KEYS",
-#endif
-#ifdef SQLITE_DEFAULT_JOURNAL_SIZE_LIMIT
-  "DEFAULT_JOURNAL_SIZE_LIMIT=" CTIMEOPT_VAL(SQLITE_DEFAULT_JOURNAL_SIZE_LIMIT),
-#endif
-#ifdef SQLITE_DEFAULT_LOCKING_MODE
-  "DEFAULT_LOCKING_MODE=" CTIMEOPT_VAL(SQLITE_DEFAULT_LOCKING_MODE),
-#endif
-#ifdef SQLITE_DEFAULT_LOOKASIDE
-  "DEFAULT_LOOKASIDE=" CTIMEOPT_VAL2(SQLITE_DEFAULT_LOOKASIDE),
-#endif
-#ifdef SQLITE_DEFAULT_MEMSTATUS
-# if SQLITE_DEFAULT_MEMSTATUS != 1
-  "DEFAULT_MEMSTATUS=" CTIMEOPT_VAL(SQLITE_DEFAULT_MEMSTATUS),
-# endif
-#endif
-#ifdef SQLITE_DEFAULT_MMAP_SIZE
-  "DEFAULT_MMAP_SIZE=" CTIMEOPT_VAL(SQLITE_DEFAULT_MMAP_SIZE),
-#endif
-#ifdef SQLITE_DEFAULT_PAGE_SIZE
-  "DEFAULT_PAGE_SIZE=" CTIMEOPT_VAL(SQLITE_DEFAULT_PAGE_SIZE),
-#endif
-#ifdef SQLITE_DEFAULT_PCACHE_INITSZ
-  "DEFAULT_PCACHE_INITSZ=" CTIMEOPT_VAL(SQLITE_DEFAULT_PCACHE_INITSZ),
-#endif
-#ifdef SQLITE_DEFAULT_PROXYDIR_PERMISSIONS
-  "DEFAULT_PROXYDIR_PERMISSIONS=" CTIMEOPT_VAL(SQLITE_DEFAULT_PROXYDIR_PERMISSIONS),
-#endif
-#ifdef SQLITE_DEFAULT_RECURSIVE_TRIGGERS
-  "DEFAULT_RECURSIVE_TRIGGERS",
-#endif
-#ifdef SQLITE_DEFAULT_ROWEST
-  "DEFAULT_ROWEST=" CTIMEOPT_VAL(SQLITE_DEFAULT_ROWEST),
-#endif
-#ifdef SQLITE_DEFAULT_SECTOR_SIZE
-  "DEFAULT_SECTOR_SIZE=" CTIMEOPT_VAL(SQLITE_DEFAULT_SECTOR_SIZE),
-#endif
-#ifdef SQLITE_DEFAULT_SYNCHRONOUS
-  "DEFAULT_SYNCHRONOUS=" CTIMEOPT_VAL(SQLITE_DEFAULT_SYNCHRONOUS),
-#endif
-#ifdef SQLITE_DEFAULT_WAL_AUTOCHECKPOINT
-  "DEFAULT_WAL_AUTOCHECKPOINT=" CTIMEOPT_VAL(SQLITE_DEFAULT_WAL_AUTOCHECKPOINT),
-#endif
-#ifdef SQLITE_DEFAULT_WAL_SYNCHRONOUS
-  "DEFAULT_WAL_SYNCHRONOUS=" CTIMEOPT_VAL(SQLITE_DEFAULT_WAL_SYNCHRONOUS),
-#endif
-#ifdef SQLITE_DEFAULT_WORKER_THREADS
-  "DEFAULT_WORKER_THREADS=" CTIMEOPT_VAL(SQLITE_DEFAULT_WORKER_THREADS),
-#endif
-#ifdef SQLITE_DIRECT_OVERFLOW_READ
-  "DIRECT_OVERFLOW_READ",
-#endif
-#ifdef SQLITE_DISABLE_DIRSYNC
-  "DISABLE_DIRSYNC",
-#endif
-#ifdef SQLITE_DISABLE_FTS3_UNICODE
-  "DISABLE_FTS3_UNICODE",
-#endif
-#ifdef SQLITE_DISABLE_FTS4_DEFERRED
-  "DISABLE_FTS4_DEFERRED",
-#endif
-#ifdef SQLITE_DISABLE_INTRINSIC
-  "DISABLE_INTRINSIC",
-#endif
-#ifdef SQLITE_DISABLE_LFS
-  "DISABLE_LFS",
-#endif
-#ifdef SQLITE_DISABLE_PAGECACHE_OVERFLOW_STATS
-  "DISABLE_PAGECACHE_OVERFLOW_STATS",
-#endif
-#ifdef SQLITE_DISABLE_SKIPAHEAD_DISTINCT
-  "DISABLE_SKIPAHEAD_DISTINCT",
-#endif
-#ifdef SQLITE_DQS
-  "DQS=" CTIMEOPT_VAL(SQLITE_DQS),
-#endif
-#ifdef SQLITE_ENABLE_8_3_NAMES
-  "ENABLE_8_3_NAMES=" CTIMEOPT_VAL(SQLITE_ENABLE_8_3_NAMES),
-#endif
-#ifdef SQLITE_ENABLE_API_ARMOR
-  "ENABLE_API_ARMOR",
-#endif
-#ifdef SQLITE_ENABLE_ATOMIC_WRITE
-  "ENABLE_ATOMIC_WRITE",
-#endif
-#ifdef SQLITE_ENABLE_BATCH_ATOMIC_WRITE
-  "ENABLE_BATCH_ATOMIC_WRITE",
-#endif
-#ifdef SQLITE_ENABLE_BYTECODE_VTAB
-  "ENABLE_BYTECODE_VTAB",
-#endif
-#ifdef SQLITE_ENABLE_CEROD
-  "ENABLE_CEROD=" CTIMEOPT_VAL(SQLITE_ENABLE_CEROD),
-#endif
-#ifdef SQLITE_ENABLE_COLUMN_METADATA
-  "ENABLE_COLUMN_METADATA",
-#endif
-#ifdef SQLITE_ENABLE_COLUMN_USED_MASK
-  "ENABLE_COLUMN_USED_MASK",
-#endif
-#ifdef SQLITE_ENABLE_COSTMULT
-  "ENABLE_COSTMULT",
-#endif
-#ifdef SQLITE_ENABLE_CURSOR_HINTS
-  "ENABLE_CURSOR_HINTS",
-#endif
-#ifdef SQLITE_ENABLE_DBPAGE_VTAB
-  "ENABLE_DBPAGE_VTAB",
-#endif
-#ifdef SQLITE_ENABLE_DBSTAT_VTAB
-  "ENABLE_DBSTAT_VTAB",
-#endif
-#ifdef SQLITE_ENABLE_EXPENSIVE_ASSERT
-  "ENABLE_EXPENSIVE_ASSERT",
-#endif
-#ifdef SQLITE_ENABLE_EXPLAIN_COMMENTS
-  "ENABLE_EXPLAIN_COMMENTS",
-#endif
-#ifdef SQLITE_ENABLE_FTS3
-  "ENABLE_FTS3",
-#endif
-#ifdef SQLITE_ENABLE_FTS3_PARENTHESIS
-  "ENABLE_FTS3_PARENTHESIS",
-#endif
-#ifdef SQLITE_ENABLE_FTS3_TOKENIZER
-  "ENABLE_FTS3_TOKENIZER",
-#endif
-#ifdef SQLITE_ENABLE_FTS4
-  "ENABLE_FTS4",
-#endif
-#ifdef SQLITE_ENABLE_FTS5
-  "ENABLE_FTS5",
-#endif
-#ifdef SQLITE_ENABLE_GEOPOLY
-  "ENABLE_GEOPOLY",
-#endif
-#ifdef SQLITE_ENABLE_HIDDEN_COLUMNS
-  "ENABLE_HIDDEN_COLUMNS",
-#endif
-#ifdef SQLITE_ENABLE_ICU
-  "ENABLE_ICU",
-#endif
-#ifdef SQLITE_ENABLE_IOTRACE
-  "ENABLE_IOTRACE",
-#endif
-#ifdef SQLITE_ENABLE_LOAD_EXTENSION
-  "ENABLE_LOAD_EXTENSION",
-#endif
-#ifdef SQLITE_ENABLE_LOCKING_STYLE
-  "ENABLE_LOCKING_STYLE=" CTIMEOPT_VAL(SQLITE_ENABLE_LOCKING_STYLE),
-#endif
-#ifdef SQLITE_ENABLE_MATH_FUNCTIONS
-  "ENABLE_MATH_FUNCTIONS",
-#endif
-#ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT
-  "ENABLE_MEMORY_MANAGEMENT",
-#endif
-#ifdef SQLITE_ENABLE_MEMSYS3
-  "ENABLE_MEMSYS3",
-#endif
-#ifdef SQLITE_ENABLE_MEMSYS5
-  "ENABLE_MEMSYS5",
-#endif
-#ifdef SQLITE_ENABLE_MULTIPLEX
-  "ENABLE_MULTIPLEX",
-#endif
-#ifdef SQLITE_ENABLE_NORMALIZE
-  "ENABLE_NORMALIZE",
-#endif
-#ifdef SQLITE_ENABLE_NULL_TRIM
-  "ENABLE_NULL_TRIM",
-#endif
-#ifdef SQLITE_ENABLE_OFFSET_SQL_FUNC
-  "ENABLE_OFFSET_SQL_FUNC",
-#endif
-#ifdef SQLITE_ENABLE_ORDERED_SET_AGGREGATES
-  "ENABLE_ORDERED_SET_AGGREGATES",
-#endif
-#ifdef SQLITE_ENABLE_OVERSIZE_CELL_CHECK
-  "ENABLE_OVERSIZE_CELL_CHECK",
-#endif
-#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
-  "ENABLE_PREUPDATE_HOOK",
-#endif
-#ifdef SQLITE_ENABLE_QPSG
-  "ENABLE_QPSG",
-#endif
-#ifdef SQLITE_ENABLE_RBU
-  "ENABLE_RBU",
-#endif
-#ifdef SQLITE_ENABLE_RTREE
-  "ENABLE_RTREE",
-#endif
-#ifdef SQLITE_ENABLE_SESSION
-  "ENABLE_SESSION",
-#endif
-#ifdef SQLITE_ENABLE_SNAPSHOT
-  "ENABLE_SNAPSHOT",
-#endif
-#ifdef SQLITE_ENABLE_SORTER_REFERENCES
-  "ENABLE_SORTER_REFERENCES",
-#endif
-#ifdef SQLITE_ENABLE_SQLLOG
-  "ENABLE_SQLLOG",
-#endif
-#ifdef SQLITE_ENABLE_STAT4
-  "ENABLE_STAT4",
-#endif
-#ifdef SQLITE_ENABLE_STMTVTAB
-  "ENABLE_STMTVTAB",
-#endif
-#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
-  "ENABLE_STMT_SCANSTATUS",
-#endif
-#ifdef SQLITE_ENABLE_TREETRACE
-  "ENABLE_TREETRACE",
-#endif
-#ifdef SQLITE_ENABLE_UNKNOWN_SQL_FUNCTION
-  "ENABLE_UNKNOWN_SQL_FUNCTION",
-#endif
-#ifdef SQLITE_ENABLE_UNLOCK_NOTIFY
-  "ENABLE_UNLOCK_NOTIFY",
-#endif
-#ifdef SQLITE_ENABLE_UPDATE_DELETE_LIMIT
-  "ENABLE_UPDATE_DELETE_LIMIT",
-#endif
-#ifdef SQLITE_ENABLE_URI_00_ERROR
-  "ENABLE_URI_00_ERROR",
-#endif
-#ifdef SQLITE_ENABLE_VFSTRACE
-  "ENABLE_VFSTRACE",
-#endif
-#ifdef SQLITE_ENABLE_WHERETRACE
-  "ENABLE_WHERETRACE",
-#endif
-#ifdef SQLITE_ENABLE_ZIPVFS
-  "ENABLE_ZIPVFS",
-#endif
-#ifdef SQLITE_EXPLAIN_ESTIMATED_ROWS
-  "EXPLAIN_ESTIMATED_ROWS",
-#endif
-#ifdef SQLITE_EXTRA_AUTOEXT
-  "EXTRA_AUTOEXT=" CTIMEOPT_VAL(SQLITE_EXTRA_AUTOEXT),
-#endif
-#ifdef SQLITE_EXTRA_IFNULLROW
-  "EXTRA_IFNULLROW",
-#endif
-#ifdef SQLITE_EXTRA_INIT
-  "EXTRA_INIT=" CTIMEOPT_VAL(SQLITE_EXTRA_INIT),
-#endif
-#ifdef SQLITE_EXTRA_SHUTDOWN
-  "EXTRA_SHUTDOWN=" CTIMEOPT_VAL(SQLITE_EXTRA_SHUTDOWN),
-#endif
-#ifdef SQLITE_FTS3_MAX_EXPR_DEPTH
-  "FTS3_MAX_EXPR_DEPTH=" CTIMEOPT_VAL(SQLITE_FTS3_MAX_EXPR_DEPTH),
-#endif
-#ifdef SQLITE_FTS5_ENABLE_TEST_MI
-  "FTS5_ENABLE_TEST_MI",
-#endif
-#ifdef SQLITE_FTS5_NO_WITHOUT_ROWID
-  "FTS5_NO_WITHOUT_ROWID",
-#endif
-#if HAVE_ISNAN || SQLITE_HAVE_ISNAN
-  "HAVE_ISNAN",
-#endif
-#ifdef SQLITE_HOMEGROWN_RECURSIVE_MUTEX
-# if SQLITE_HOMEGROWN_RECURSIVE_MUTEX != 1
-  "HOMEGROWN_RECURSIVE_MUTEX=" CTIMEOPT_VAL(SQLITE_HOMEGROWN_RECURSIVE_MUTEX),
-# endif
-#endif
-#ifdef SQLITE_IGNORE_AFP_LOCK_ERRORS
-  "IGNORE_AFP_LOCK_ERRORS",
-#endif
-#ifdef SQLITE_IGNORE_FLOCK_LOCK_ERRORS
-  "IGNORE_FLOCK_LOCK_ERRORS",
-#endif
-#ifdef SQLITE_INLINE_MEMCPY
-  "INLINE_MEMCPY",
-#endif
-#ifdef SQLITE_INT64_TYPE
-  "INT64_TYPE",
-#endif
-#ifdef SQLITE_INTEGRITY_CHECK_ERROR_MAX
-  "INTEGRITY_CHECK_ERROR_MAX=" CTIMEOPT_VAL(SQLITE_INTEGRITY_CHECK_ERROR_MAX),
-#endif
-#ifdef SQLITE_LEGACY_JSON_VALID
-  "LEGACY_JSON_VALID",
-#endif
-#ifdef SQLITE_LIKE_DOESNT_MATCH_BLOBS
-  "LIKE_DOESNT_MATCH_BLOBS",
-#endif
-#ifdef SQLITE_LOCK_TRACE
-  "LOCK_TRACE",
-#endif
-#ifdef SQLITE_LOG_CACHE_SPILL
-  "LOG_CACHE_SPILL",
-#endif
-#ifdef SQLITE_MALLOC_SOFT_LIMIT
-  "MALLOC_SOFT_LIMIT=" CTIMEOPT_VAL(SQLITE_MALLOC_SOFT_LIMIT),
-#endif
-#ifdef SQLITE_MAX_ATTACHED
-  "MAX_ATTACHED=" CTIMEOPT_VAL(SQLITE_MAX_ATTACHED),
-#endif
-#ifdef SQLITE_MAX_COLUMN
-  "MAX_COLUMN=" CTIMEOPT_VAL(SQLITE_MAX_COLUMN),
-#endif
-#ifdef SQLITE_MAX_COMPOUND_SELECT
-  "MAX_COMPOUND_SELECT=" CTIMEOPT_VAL(SQLITE_MAX_COMPOUND_SELECT),
-#endif
-#ifdef SQLITE_MAX_DEFAULT_PAGE_SIZE
-  "MAX_DEFAULT_PAGE_SIZE=" CTIMEOPT_VAL(SQLITE_MAX_DEFAULT_PAGE_SIZE),
-#endif
-#ifdef SQLITE_MAX_EXPR_DEPTH
-  "MAX_EXPR_DEPTH=" CTIMEOPT_VAL(SQLITE_MAX_EXPR_DEPTH),
-#endif
-#ifdef SQLITE_MAX_FUNCTION_ARG
-  "MAX_FUNCTION_ARG=" CTIMEOPT_VAL(SQLITE_MAX_FUNCTION_ARG),
-#endif
-#ifdef SQLITE_MAX_LENGTH
-  "MAX_LENGTH=" CTIMEOPT_VAL(SQLITE_MAX_LENGTH),
-#endif
-#ifdef SQLITE_MAX_LIKE_PATTERN_LENGTH
-  "MAX_LIKE_PATTERN_LENGTH=" CTIMEOPT_VAL(SQLITE_MAX_LIKE_PATTERN_LENGTH),
-#endif
-#ifdef SQLITE_MAX_MEMORY
-  "MAX_MEMORY=" CTIMEOPT_VAL(SQLITE_MAX_MEMORY),
-#endif
-#ifdef SQLITE_MAX_MMAP_SIZE
-  "MAX_MMAP_SIZE=" CTIMEOPT_VAL(SQLITE_MAX_MMAP_SIZE),
-#endif
-#ifdef SQLITE_MAX_MMAP_SIZE_
-  "MAX_MMAP_SIZE_=" CTIMEOPT_VAL(SQLITE_MAX_MMAP_SIZE_),
-#endif
-#ifdef SQLITE_MAX_PAGE_COUNT
-  "MAX_PAGE_COUNT=" CTIMEOPT_VAL(SQLITE_MAX_PAGE_COUNT),
-#endif
-#ifdef SQLITE_MAX_PAGE_SIZE
-  "MAX_PAGE_SIZE=" CTIMEOPT_VAL(SQLITE_MAX_PAGE_SIZE),
-#endif
-#ifdef SQLITE_MAX_SCHEMA_RETRY
-  "MAX_SCHEMA_RETRY=" CTIMEOPT_VAL(SQLITE_MAX_SCHEMA_RETRY),
-#endif
-#ifdef SQLITE_MAX_SQL_LENGTH
-  "MAX_SQL_LENGTH=" CTIMEOPT_VAL(SQLITE_MAX_SQL_LENGTH),
-#endif
-#ifdef SQLITE_MAX_TRIGGER_DEPTH
-  "MAX_TRIGGER_DEPTH=" CTIMEOPT_VAL(SQLITE_MAX_TRIGGER_DEPTH),
-#endif
-#ifdef SQLITE_MAX_VARIABLE_NUMBER
-  "MAX_VARIABLE_NUMBER=" CTIMEOPT_VAL(SQLITE_MAX_VARIABLE_NUMBER),
-#endif
-#ifdef SQLITE_MAX_VDBE_OP
-  "MAX_VDBE_OP=" CTIMEOPT_VAL(SQLITE_MAX_VDBE_OP),
-#endif
-#ifdef SQLITE_MAX_WORKER_THREADS
-  "MAX_WORKER_THREADS=" CTIMEOPT_VAL(SQLITE_MAX_WORKER_THREADS),
-#endif
-#ifdef SQLITE_MEMDEBUG
-  "MEMDEBUG",
-#endif
-#ifdef SQLITE_MIXED_ENDIAN_64BIT_FLOAT
-  "MIXED_ENDIAN_64BIT_FLOAT",
-#endif
-#ifdef SQLITE_MMAP_READWRITE
-  "MMAP_READWRITE",
-#endif
-#ifdef SQLITE_MUTEX_NOOP
-  "MUTEX_NOOP",
-#endif
-#ifdef SQLITE_MUTEX_OMIT
-  "MUTEX_OMIT",
-#endif
-#ifdef SQLITE_MUTEX_PTHREADS
-  "MUTEX_PTHREADS",
-#endif
-#ifdef SQLITE_MUTEX_W32
-  "MUTEX_W32",
-#endif
-#ifdef SQLITE_NEED_ERR_NAME
-  "NEED_ERR_NAME",
-#endif
-#ifdef SQLITE_NO_SYNC
-  "NO_SYNC",
-#endif
-#ifdef SQLITE_OMIT_ALTERTABLE
-  "OMIT_ALTERTABLE",
-#endif
-#ifdef SQLITE_OMIT_ANALYZE
-  "OMIT_ANALYZE",
-#endif
-#ifdef SQLITE_OMIT_ATTACH
-  "OMIT_ATTACH",
-#endif
-#ifdef SQLITE_OMIT_AUTHORIZATION
-  "OMIT_AUTHORIZATION",
-#endif
-#ifdef SQLITE_OMIT_AUTOINCREMENT
-  "OMIT_AUTOINCREMENT",
-#endif
-#ifdef SQLITE_OMIT_AUTOINIT
-  "OMIT_AUTOINIT",
-#endif
-#ifdef SQLITE_OMIT_AUTOMATIC_INDEX
-  "OMIT_AUTOMATIC_INDEX",
-#endif
-#ifdef SQLITE_OMIT_AUTORESET
-  "OMIT_AUTORESET",
-#endif
-#ifdef SQLITE_OMIT_AUTOVACUUM
-  "OMIT_AUTOVACUUM",
-#endif
-#ifdef SQLITE_OMIT_BETWEEN_OPTIMIZATION
-  "OMIT_BETWEEN_OPTIMIZATION",
-#endif
-#ifdef SQLITE_OMIT_BLOB_LITERAL
-  "OMIT_BLOB_LITERAL",
-#endif
-#ifdef SQLITE_OMIT_CAST
-  "OMIT_CAST",
-#endif
-#ifdef SQLITE_OMIT_CHECK
-  "OMIT_CHECK",
-#endif
-#ifdef SQLITE_OMIT_COMPLETE
-  "OMIT_COMPLETE",
-#endif
-#ifdef SQLITE_OMIT_COMPOUND_SELECT
-  "OMIT_COMPOUND_SELECT",
-#endif
-#ifdef SQLITE_OMIT_CONFLICT_CLAUSE
-  "OMIT_CONFLICT_CLAUSE",
-#endif
-#ifdef SQLITE_OMIT_CTE
-  "OMIT_CTE",
-#endif
-#if defined(SQLITE_OMIT_DATETIME_FUNCS) || defined(SQLITE_OMIT_FLOATING_POINT)
-  "OMIT_DATETIME_FUNCS",
-#endif
-#ifdef SQLITE_OMIT_DECLTYPE
-  "OMIT_DECLTYPE",
-#endif
-#ifdef SQLITE_OMIT_DEPRECATED
-  "OMIT_DEPRECATED",
-#endif
-#ifdef SQLITE_OMIT_DESERIALIZE
-  "OMIT_DESERIALIZE",
-#endif
-#ifdef SQLITE_OMIT_DISKIO
-  "OMIT_DISKIO",
-#endif
-#ifdef SQLITE_OMIT_EXPLAIN
-  "OMIT_EXPLAIN",
-#endif
-#ifdef SQLITE_OMIT_FLAG_PRAGMAS
-  "OMIT_FLAG_PRAGMAS",
-#endif
-#ifdef SQLITE_OMIT_FLOATING_POINT
-  "OMIT_FLOATING_POINT",
-#endif
-#ifdef SQLITE_OMIT_FOREIGN_KEY
-  "OMIT_FOREIGN_KEY",
-#endif
-#ifdef SQLITE_OMIT_GET_TABLE
-  "OMIT_GET_TABLE",
-#endif
-#ifdef SQLITE_OMIT_HEX_INTEGER
-  "OMIT_HEX_INTEGER",
-#endif
-#ifdef SQLITE_OMIT_INCRBLOB
-  "OMIT_INCRBLOB",
-#endif
-#ifdef SQLITE_OMIT_INTEGRITY_CHECK
-  "OMIT_INTEGRITY_CHECK",
-#endif
-#ifdef SQLITE_OMIT_INTROSPECTION_PRAGMAS
-  "OMIT_INTROSPECTION_PRAGMAS",
-#endif
-#ifdef SQLITE_OMIT_JSON
-  "OMIT_JSON",
-#endif
-#ifdef SQLITE_OMIT_LIKE_OPTIMIZATION
-  "OMIT_LIKE_OPTIMIZATION",
-#endif
-#ifdef SQLITE_OMIT_LOAD_EXTENSION
-  "OMIT_LOAD_EXTENSION",
-#endif
-#ifdef SQLITE_OMIT_LOCALTIME
-  "OMIT_LOCALTIME",
-#endif
-#ifdef SQLITE_OMIT_LOOKASIDE
-  "OMIT_LOOKASIDE",
-#endif
-#ifdef SQLITE_OMIT_MEMORYDB
-  "OMIT_MEMORYDB",
-#endif
-#ifdef SQLITE_OMIT_OR_OPTIMIZATION
-  "OMIT_OR_OPTIMIZATION",
-#endif
-#ifdef SQLITE_OMIT_PAGER_PRAGMAS
-  "OMIT_PAGER_PRAGMAS",
-#endif
-#ifdef SQLITE_OMIT_PARSER_TRACE
-  "OMIT_PARSER_TRACE",
-#endif
-#ifdef SQLITE_OMIT_POPEN
-  "OMIT_POPEN",
-#endif
-#ifdef SQLITE_OMIT_PRAGMA
-  "OMIT_PRAGMA",
-#endif
-#ifdef SQLITE_OMIT_PROGRESS_CALLBACK
-  "OMIT_PROGRESS_CALLBACK",
-#endif
-#ifdef SQLITE_OMIT_QUICKBALANCE
-  "OMIT_QUICKBALANCE",
-#endif
-#ifdef SQLITE_OMIT_REINDEX
-  "OMIT_REINDEX",
-#endif
-#ifdef SQLITE_OMIT_SCHEMA_PRAGMAS
-  "OMIT_SCHEMA_PRAGMAS",
-#endif
-#ifdef SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS
-  "OMIT_SCHEMA_VERSION_PRAGMAS",
-#endif
-#ifdef SQLITE_OMIT_SEH
-  "OMIT_SEH",
-#endif
-#ifdef SQLITE_OMIT_SHARED_CACHE
-  "OMIT_SHARED_CACHE",
-#endif
-#ifdef SQLITE_OMIT_SHUTDOWN_DIRECTORIES
-  "OMIT_SHUTDOWN_DIRECTORIES",
-#endif
-#ifdef SQLITE_OMIT_SUBQUERY
-  "OMIT_SUBQUERY",
-#endif
-#ifdef SQLITE_OMIT_TCL_VARIABLE
-  "OMIT_TCL_VARIABLE",
-#endif
-#ifdef SQLITE_OMIT_TEMPDB
-  "OMIT_TEMPDB",
-#endif
-#ifdef SQLITE_OMIT_TEST_CONTROL
-  "OMIT_TEST_CONTROL",
-#endif
-#ifdef SQLITE_OMIT_TRACE
-# if SQLITE_OMIT_TRACE != 1
-  "OMIT_TRACE=" CTIMEOPT_VAL(SQLITE_OMIT_TRACE),
-# endif
-#endif
-#ifdef SQLITE_OMIT_TRIGGER
-  "OMIT_TRIGGER",
-#endif
-#ifdef SQLITE_OMIT_TRUNCATE_OPTIMIZATION
-  "OMIT_TRUNCATE_OPTIMIZATION",
-#endif
-#ifdef SQLITE_OMIT_UTF16
-  "OMIT_UTF16",
-#endif
-#ifdef SQLITE_OMIT_VACUUM
-  "OMIT_VACUUM",
-#endif
-#ifdef SQLITE_OMIT_VIEW
-  "OMIT_VIEW",
-#endif
-#ifdef SQLITE_OMIT_VIRTUALTABLE
-  "OMIT_VIRTUALTABLE",
-#endif
-#ifdef SQLITE_OMIT_WAL
-  "OMIT_WAL",
-#endif
-#ifdef SQLITE_OMIT_WSD
-  "OMIT_WSD",
-#endif
-#ifdef SQLITE_OMIT_XFER_OPT
-  "OMIT_XFER_OPT",
-#endif
-#ifdef SQLITE_PERFORMANCE_TRACE
-  "PERFORMANCE_TRACE",
-#endif
-#ifdef SQLITE_POWERSAFE_OVERWRITE
-# if SQLITE_POWERSAFE_OVERWRITE != 1
-  "POWERSAFE_OVERWRITE=" CTIMEOPT_VAL(SQLITE_POWERSAFE_OVERWRITE),
-# endif
-#endif
-#ifdef SQLITE_PREFER_PROXY_LOCKING
-  "PREFER_PROXY_LOCKING",
-#endif
-#ifdef SQLITE_PROXY_DEBUG
-  "PROXY_DEBUG",
-#endif
-#ifdef SQLITE_REVERSE_UNORDERED_SELECTS
-  "REVERSE_UNORDERED_SELECTS",
-#endif
-#ifdef SQLITE_RTREE_INT_ONLY
-  "RTREE_INT_ONLY",
-#endif
-#ifdef SQLITE_SECURE_DELETE
-  "SECURE_DELETE",
-#endif
-#ifdef SQLITE_SMALL_STACK
-  "SMALL_STACK",
-#endif
-#ifdef SQLITE_SORTER_PMASZ
-  "SORTER_PMASZ=" CTIMEOPT_VAL(SQLITE_SORTER_PMASZ),
-#endif
-#ifdef SQLITE_SOUNDEX
-  "SOUNDEX",
-#endif
-#ifdef SQLITE_STAT4_SAMPLES
-  "STAT4_SAMPLES=" CTIMEOPT_VAL(SQLITE_STAT4_SAMPLES),
-#endif
-#ifdef SQLITE_STMTJRNL_SPILL
-  "STMTJRNL_SPILL=" CTIMEOPT_VAL(SQLITE_STMTJRNL_SPILL),
-#endif
-#ifdef SQLITE_SUBSTR_COMPATIBILITY
-  "SUBSTR_COMPATIBILITY",
-#endif
-#if (!defined(SQLITE_WIN32_MALLOC) \
-     && !defined(SQLITE_ZERO_MALLOC) \
-     && !defined(SQLITE_MEMDEBUG) \
-    ) || defined(SQLITE_SYSTEM_MALLOC)
-  "SYSTEM_MALLOC",
-#endif
-#ifdef SQLITE_TCL
-  "TCL",
-#endif
-#ifdef SQLITE_TEMP_STORE
-  "TEMP_STORE=" CTIMEOPT_VAL(SQLITE_TEMP_STORE),
-#endif
-#ifdef SQLITE_TEST
-  "TEST",
-#endif
-#if defined(SQLITE_THREADSAFE)
-  "THREADSAFE=" CTIMEOPT_VAL(SQLITE_THREADSAFE),
-#elif defined(THREADSAFE)
-  "THREADSAFE=" CTIMEOPT_VAL(THREADSAFE),
-#else
-  "THREADSAFE=1",
-#endif
-#ifdef SQLITE_UNLINK_AFTER_CLOSE
-  "UNLINK_AFTER_CLOSE",
-#endif
-#ifdef SQLITE_UNTESTABLE
-  "UNTESTABLE",
-#endif
-#ifdef SQLITE_USE_ALLOCA
-  "USE_ALLOCA",
-#endif
-#ifdef SQLITE_USE_FCNTL_TRACE
-  "USE_FCNTL_TRACE",
-#endif
-#ifdef SQLITE_USE_URI
-  "USE_URI",
-#endif
-#ifdef SQLITE_VDBE_COVERAGE
-  "VDBE_COVERAGE",
-#endif
-#ifdef SQLITE_WIN32_MALLOC
-  "WIN32_MALLOC",
-#endif
-#ifdef SQLITE_ZERO_MALLOC
-  "ZERO_MALLOC",
-#endif
-
-} ;
-
-const char **sqlite3CompileOptions(int *pnOpt){
-  *pnOpt = sizeof(sqlite3azCompileOpt) / sizeof(sqlite3azCompileOpt[0]);
-  return (const char**)sqlite3azCompileOpt;
-}
-
-#endif /* SQLITE_OMIT_COMPILEOPTION_DIAGS */
@@ -222,6 +222,9 @@ static int parseHhMmSs(const char *zDate, DateTime *p){
        zDate++;
      }
      ms /= rScale;
+      /* Truncate to avoid problems with sub-milliseconds
+      ** rounding. https://sqlite.org/forum/forumpost/766a2c9231 */
+      if( ms>0.999 ) ms = 0.999;
    }
  }else{
    s = 0;
@@ -1429,7 +1432,7 @@ static void strftimeFunc(
      }
      case 'f': {  /* Fractional seconds.  (Non-standard) */
        double s = x.s;
-        if( s>59.999 ) s = 59.999;
+        if( NEVER(s>59.999) ) s = 59.999;
        sqlite3_str_appendf(&sRes, "%06.3f", s);
        break;
      }
@@ -424,6 +424,7 @@ static int dbpageUpdate(
  return rc;

 update_fail:
+  pTab->pgnoTrunc = 0;
  sqlite3_free(pVtab->zErrMsg);
  pVtab->zErrMsg = sqlite3_mprintf("%s", zErr);
  return SQLITE_ERROR;
@@ -1849,7 +1849,6 @@ ExprList *sqlite3ExprListDup(sqlite3 *db, const ExprList *p, int flags){
    }
    pItem->zEName = sqlite3DbStrDup(db, pOldItem->zEName);
    pItem->fg = pOldItem->fg;
-    pItem->fg.done = 0;
    pItem->u = pOldItem->u;
  }
  return pNew;
@@ -1932,16 +1931,13 @@ IdList *sqlite3IdListDup(sqlite3 *db, const IdList *p){
  int i;
  assert( db!=0 );
  if( p==0 ) return 0;
-  assert( p->eU4!=EU4_EXPR );
  pNew = sqlite3DbMallocRawNN(db, sizeof(*pNew)+(p->nId-1)*sizeof(p->a[0]) );
  if( pNew==0 ) return 0;
  pNew->nId = p->nId;
-  pNew->eU4 = p->eU4;
  for(i=0; i<p->nId; i++){
    struct IdList_item *pNewItem = &pNew->a[i];
    const struct IdList_item *pOldItem = &p->a[i];
    pNewItem->zName = sqlite3DbStrDup(db, pOldItem->zName);
-    pNewItem->u4 = pOldItem->u4;
  }
  return pNew;
 }
@@ -2969,13 +2965,7 @@ const char *sqlite3RowidAlias(Table *pTab){
  int ii;
  assert( VisibleRowid(pTab) );
  for(ii=0; ii<ArraySize(azOpt); ii++){
-    int iCol;
-    for(iCol=0; iCol<pTab->nCol; iCol++){
-      if( sqlite3_stricmp(azOpt[ii], pTab->aCol[iCol].zCnName)==0 ) break;
-    }
-    if( iCol==pTab->nCol ){
-      return azOpt[ii];
-    }
+    if( sqlite3ColumnIndex(pTab, azOpt[ii])<0 ) return azOpt[ii];
  }
  return 0;
 }
@@ -3379,7 +3369,7 @@ static char *exprINAffinity(Parse *pParse, const Expr *pExpr){
  char *zRet;

  assert( pExpr->op==TK_IN );
-  zRet = sqlite3DbMallocRaw(pParse->db, nVal+1);
+  zRet = sqlite3DbMallocRaw(pParse->db, 1+(i64)nVal);
  if( zRet ){
    int i;
    for(i=0; i<nVal; i++){
@@ -3465,6 +3455,7 @@ static int findCompatibleInRhsSubrtn(
    assert( pOp->opcode==OP_BeginSubrtn );
    pSig = pOp->p4.pSubrtnSig;
    assert( pSig!=0 );
+    if( !pSig->bComplete ) continue;
    if( pNewSig->selId!=pSig->selId ) continue;
    if( strcmp(pNewSig->zAff,pSig->zAff)!=0 ) continue;
    pExpr->y.sub.iAddr = pSig->iAddr;
@@ -3511,6 +3502,7 @@ void sqlite3CodeRhsOfIN(
  KeyInfo *pKeyInfo = 0;      /* Key information */
  int nVal;                   /* Size of vector pLeft */
  Vdbe *v;                    /* The prepared statement under construction */
+  SubrtnSig *pSig = 0;        /* Signature for this subroutine */

  v = pParse->pVdbe;
  assert( v!=0 );
@@ -3531,7 +3523,6 @@ void sqlite3CodeRhsOfIN(
    ** Compute a signature for the RHS of the IN operator to facility
    ** finding and reusing prior instances of the same IN operator.
    */
-    SubrtnSig *pSig = 0;
    assert( !ExprUseXSelect(pExpr) || pExpr->x.pSelect!=0 );
    if( ExprUseXSelect(pExpr) && (pExpr->x.pSelect->selFlags & SF_All)==0 ){
      pSig = sqlite3DbMallocRawNN(pParse->db, sizeof(pSig[0]));
@@ -3574,6 +3565,7 @@ void sqlite3CodeRhsOfIN(
    pExpr->y.sub.iAddr =
      sqlite3VdbeAddOp2(v, OP_BeginSubrtn, 0, pExpr->y.sub.regReturn) + 1;
    if( pSig ){
+      pSig->bComplete = 0;
      pSig->iAddr = pExpr->y.sub.iAddr;
      pSig->regReturn = pExpr->y.sub.regReturn;
      pSig->iTable = iTab;
@@ -3709,6 +3701,7 @@ void sqlite3CodeRhsOfIN(
    sqlite3ReleaseTempReg(pParse, r1);
    sqlite3ReleaseTempReg(pParse, r2);
  }
+  if( pSig ) pSig->bComplete = 1;
  if( pKeyInfo ){
    sqlite3VdbeChangeP4(v, addr, (void *)pKeyInfo, P4_KEYINFO);
  }
@@ -356,11 +356,6 @@ static void substrFunc(
  i64 p1, p2;

  assert( argc==3 || argc==2 );
-  if( sqlite3_value_type(argv[1])==SQLITE_NULL
-   || (argc==3 && sqlite3_value_type(argv[2])==SQLITE_NULL)
-  ){
-    return;
-  }
  p0type = sqlite3_value_type(argv[0]);
  p1 = sqlite3_value_int64(argv[1]);
  if( p0type==SQLITE_BLOB ){
@@ -378,19 +373,23 @@ 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_int64(argv[2]);
+    if( p2==0 && sqlite3_value_type(argv[2])==SQLITE_NULL ) return;
  }else{
    p2 = sqlite3_context_db_handle(context)->aLimit[SQLITE_LIMIT_LENGTH];
  }
+  if( p1==0 ){
+#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. */
+    p1 = 1; /* <rdar://problem/6778339> */
+#endif
+    if( sqlite3_value_type(argv[1])==SQLITE_NULL ) return;
+  }
  if( p1<0 ){
    p1 += len;
    if( p1<0 ){
@@ -1421,7 +1420,7 @@ static void replaceFunc(
  assert( zRep==sqlite3_value_text(argv[2]) );
  nOut = nStr + 1;
  assert( nOut<SQLITE_MAX_LENGTH );
-  zOut = contextMalloc(context, (i64)nOut);
+  zOut = contextMalloc(context, nOut);
  if( zOut==0 ){
    return;
  }
@@ -1571,7 +1570,7 @@ static void concatFuncCore(
  for(i=0; i<argc; i++){
    n += sqlite3_value_bytes(argv[i]);
  }
-  n += (argc-1)*nSep;
+  n += (argc-1)*(i64)nSep;
  z = sqlite3_malloc64(n+1);
  if( z==0 ){
    sqlite3_result_error_nomem(context);
@@ -1869,7 +1868,10 @@ static void sumInverse(sqlite3_context *context, int argc, sqlite3_value**argv){
    assert( p->cnt>0 );
    p->cnt--;
    if( !p->approx ){
-      p->iSum -= sqlite3_value_int64(argv[0]);
+      if( sqlite3SubInt64(&p->iSum, sqlite3_value_int64(argv[0])) ){
+        p->ovrfl = 1;
+        p->approx = 1;
+      }
    }else if( type==SQLITE_INTEGER ){
      i64 iVal = sqlite3_value_int64(argv[0]);
      if( iVal!=SMALLEST_INT64 ){
@@ -2695,12 +2697,10 @@ void sqlite3RegisterBuiltinFunctions(void){
    FUNCTION(rtrim,              2, 2, 0, trimFunc         ),
    FUNCTION(trim,               1, 3, 0, trimFunc         ),
    FUNCTION(trim,               2, 3, 0, trimFunc         ),
-    FUNCTION(min,               -1, 0, 1, minmaxFunc       ),
-    FUNCTION(min,                0, 0, 1, 0                ),
+    FUNCTION(min,               -3, 0, 1, minmaxFunc       ),
    WAGGREGATE(min, 1, 0, 1, minmaxStep, minMaxFinalize, minMaxValue, 0,
                                 SQLITE_FUNC_MINMAX|SQLITE_FUNC_ANYORDER ),
-    FUNCTION(max,               -1, 1, 1, minmaxFunc       ),
-    FUNCTION(max,                0, 1, 1, 0                ),
+    FUNCTION(max,               -3, 1, 1, minmaxFunc       ),
    WAGGREGATE(max, 1, 1, 1, minmaxStep, minMaxFinalize, minMaxValue, 0,
                                 SQLITE_FUNC_MINMAX|SQLITE_FUNC_ANYORDER ),
    FUNCTION2(typeof,            1, 0, 0, typeofFunc,  SQLITE_FUNC_TYPEOF),
@@ -2727,11 +2727,8 @@ void sqlite3RegisterBuiltinFunctions(void){
    FUNCTION(hex,                1, 0, 0, hexFunc          ),
    FUNCTION(unhex,              1, 0, 0, unhexFunc        ),
    FUNCTION(unhex,              2, 0, 0, unhexFunc        ),
-    FUNCTION(concat,            -1, 0, 0, concatFunc       ),
-    FUNCTION(concat,             0, 0, 0, 0                ),
-    FUNCTION(concat_ws,         -1, 0, 0, concatwsFunc     ),
-    FUNCTION(concat_ws,          0, 0, 0, 0                ),
-    FUNCTION(concat_ws,          1, 0, 0, 0                ),
+    FUNCTION(concat,            -3, 0, 0, concatFunc       ),
+    FUNCTION(concat_ws,         -4, 0, 0, concatwsFunc     ),
    INLINE_FUNC(ifnull,          2, INLINEFUNC_coalesce, 0 ),
    VFUNCTION(random,            0, 0, 0, randomFunc       ),
    VFUNCTION(randomblob,        1, 0, 0, randomBlob       ),
@@ -2775,8 +2772,6 @@ void sqlite3RegisterBuiltinFunctions(void){
 #ifdef SQLITE_ENABLE_UNKNOWN_SQL_FUNCTION
    FUNCTION(unknown,           -1, 0, 0, unknownFunc      ),
 #endif
-    FUNCTION(coalesce,           1, 0, 0, 0                ),
-    FUNCTION(coalesce,           0, 0, 0, 0                ),
 #ifdef SQLITE_ENABLE_MATH_FUNCTIONS
    MFUNCTION(ceil,              1, xCeil,     ceilingFunc ),
    MFUNCTION(ceiling,           1, xCeil,     ceilingFunc ),
@@ -2814,11 +2809,9 @@ void sqlite3RegisterBuiltinFunctions(void){
    MFUNCTION(pi,                0, 0,         piFunc      ),
 #endif /* SQLITE_ENABLE_MATH_FUNCTIONS */
    FUNCTION(sign,               1, 0, 0,      signFunc    ),
-    INLINE_FUNC(coalesce,       -1, INLINEFUNC_coalesce, 0 ),
-    INLINE_FUNC(iif,             2, INLINEFUNC_iif,      0 ),
-    INLINE_FUNC(iif,             3, INLINEFUNC_iif,      0 ),
-    INLINE_FUNC(if,              2, INLINEFUNC_iif,      0 ),
-    INLINE_FUNC(if,              3, INLINEFUNC_iif,      0 ),
+    INLINE_FUNC(coalesce,       -4, INLINEFUNC_coalesce, 0 ),
+    INLINE_FUNC(iif,            -4, INLINEFUNC_iif,      0 ),
+    INLINE_FUNC(if,             -4, INLINEFUNC_iif,      0 ),
  };
 #ifndef SQLITE_OMIT_ALTERTABLE
  sqlite3AlterFunctions();
@@ -54,12 +54,19 @@ void sqlite3HashClear(Hash *pH){
 */
 static unsigned int strHash(const char *z){
  unsigned int h = 0;
-  unsigned char c;
-  while( (c = (unsigned char)*z++)!=0 ){     /*OPTIMIZATION-IF-TRUE*/
+  while( z[0] ){     /*OPTIMIZATION-IF-TRUE*/
    /* Knuth multiplicative hashing.  (Sorting & Searching, p. 510).
    ** 0x9e3779b1 is 2654435761 which is the closest prime number to
-    ** (2**32)*golden_ratio, where golden_ratio = (sqrt(5) - 1)/2. */
-    h += sqlite3UpperToLower[c];
+    ** (2**32)*golden_ratio, where golden_ratio = (sqrt(5) - 1)/2.
+    **
+    ** Only bits 0xdf for ASCII and bits 0xbf for EBCDIC each octet are
+    ** hashed since the omitted bits determine the upper/lower case difference.
+    */
+#ifdef SQLITE_EBCDIC
+    h += 0xbf & (unsigned char)*(z++);
+#else
+    h += 0xdf & (unsigned char)*(z++);
+#endif
    h *= 0x9e3779b1;
  }
  return h;
@@ -132,9 +139,8 @@ static int rehash(Hash *pH, unsigned int new_size){
  pH->htsize = new_size = sqlite3MallocSize(new_ht)/sizeof(struct _ht);
  memset(new_ht, 0, new_size*sizeof(struct _ht));
  for(elem=pH->first, pH->first=0; elem; elem = next_elem){
-    unsigned int h = strHash(elem->pKey) % new_size;
    next_elem = elem->next;
-    insertElement(pH, &new_ht[h], elem);
+    insertElement(pH, &new_ht[elem->h % new_size], elem);
  }
  return 1;
 }
@@ -152,23 +158,22 @@ static HashElem *findElementWithHash(
  HashElem *elem;                /* Used to loop thru the element list */
  unsigned int count;            /* Number of elements left to test */
  unsigned int h;                /* The computed hash */
-  static HashElem nullElement = { 0, 0, 0, 0 };
+  static HashElem nullElement = { 0, 0, 0, 0, 0 };

+  h = strHash(pKey);
  if( pH->ht ){   /*OPTIMIZATION-IF-TRUE*/
    struct _ht *pEntry;
-    h = strHash(pKey) % pH->htsize;
-    pEntry = &pH->ht[h];
+    pEntry = &pH->ht[h % pH->htsize];
    elem = pEntry->chain;
    count = pEntry->count;
  }else{
-    h = 0;
    elem = pH->first;
    count = pH->count;
  }
  if( pHash ) *pHash = h;
  while( count ){
    assert( elem!=0 );
-    if( sqlite3StrICmp(elem->pKey,pKey)==0 ){ 
+    if( h==elem->h && sqlite3StrICmp(elem->pKey,pKey)==0 ){ 
      return elem;
    }
    elem = elem->next;
@@ -180,10 +185,9 @@ static HashElem *findElementWithHash(
 /* Remove a single entry from the hash table given a pointer to that
 ** element and a hash on the element's key.
 */
-static void removeElementGivenHash(
+static void removeElement(
  Hash *pH,         /* The pH containing "elem" */
-  HashElem* elem,   /* The element to be removed from the pH */
-  unsigned int h    /* Hash value for the element */
+  HashElem *elem    /* The element to be removed from the pH */
 ){
  struct _ht *pEntry;
  if( elem->prev ){
@@ -195,7 +199,7 @@ static void removeElementGivenHash(
    elem->next->prev = elem->prev;
  }
  if( pH->ht ){
-    pEntry = &pH->ht[h];
+    pEntry = &pH->ht[elem->h % pH->htsize];
    if( pEntry->chain==elem ){
      pEntry->chain = elem->next;
    }
@@ -246,7 +250,7 @@ void *sqlite3HashInsert(Hash *pH, const char *pKey, void *data){
  if( elem->data ){
    void *old_data = elem->data;
    if( data==0 ){
-      removeElementGivenHash(pH,elem,h);
+      removeElement(pH,elem);
    }else{
      elem->data = data;
      elem->pKey = pKey;
@@ -257,14 +261,12 @@ void *sqlite3HashInsert(Hash *pH, const char *pKey, void *data){
  new_elem = (HashElem*)sqlite3Malloc( sizeof(HashElem) );
  if( new_elem==0 ) return data;
  new_elem->pKey = pKey;
+  new_elem->h = h;
  new_elem->data = data;
  pH->count++;
-  if( pH->count>=10 && pH->count > 2*pH->htsize ){
-    if( rehash(pH, pH->count*2) ){
-      assert( pH->htsize>0 );
-      h = strHash(pKey) % pH->htsize;
-    }
+  if( pH->count>=5 && pH->count > 2*pH->htsize ){
+    rehash(pH, pH->count*3);
  }
-  insertElement(pH, pH->ht ? &pH->ht[h] : 0, new_elem);
+  insertElement(pH, pH->ht ? &pH->ht[new_elem->h % pH->htsize] : 0, new_elem);
  return 0;
 }
@@ -60,6 +60,7 @@ struct HashElem {
  HashElem *next, *prev;       /* Next and previous elements in the table */
  void *data;                  /* Data associated with this element */
  const char *pKey;            /* Key associated with this element */
+  unsigned int h;              /* hash for pKey */
 };

 /*
@@ -927,6 +927,7 @@ void sqlite3Insert(
  int regRowid;         /* registers holding insert rowid */
  int regData;          /* register holding first column to insert */
  int *aRegIdx = 0;     /* One register allocated to each index */
+  int *aTabColMap = 0;  /* Mapping from pTab columns to pCol entries */

 #ifndef SQLITE_OMIT_TRIGGER
  int isView;                 /* True if attempting to insert into a view */
@@ -1071,31 +1072,25 @@ void sqlite3Insert(
  */
  bIdListInOrder = (pTab->tabFlags & (TF_OOOHidden|TF_HasStored))==0;
  if( pColumn ){
-    assert( pColumn->eU4!=EU4_EXPR );
-    pColumn->eU4 = EU4_IDX;
+    aTabColMap = sqlite3DbMallocZero(db, pTab->nCol*sizeof(int));
+    if( aTabColMap==0 ) goto insert_cleanup;
    for(i=0; i<pColumn->nId; i++){
-      pColumn->a[i].u4.idx = -1;
-    }
-    for(i=0; i<pColumn->nId; i++){
-      for(j=0; j<pTab->nCol; j++){
-        if( sqlite3StrICmp(pColumn->a[i].zName, pTab->aCol[j].zCnName)==0 ){
-          pColumn->a[i].u4.idx = j;
-          if( i!=j ) bIdListInOrder = 0;
-          if( j==pTab->iPKey ){
-            ipkColumn = i;  assert( !withoutRowid );
-          }
-#ifndef SQLITE_OMIT_GENERATED_COLUMNS
-          if( pTab->aCol[j].colFlags & (COLFLAG_STORED|COLFLAG_VIRTUAL) ){
-            sqlite3ErrorMsg(pParse,
-               "cannot INSERT into generated column \"%s\"",
-               pTab->aCol[j].zCnName);
-            goto insert_cleanup;
-          }
-#endif
-          break;
+      j = sqlite3ColumnIndex(pTab, pColumn->a[i].zName);
+      if( j>=0 ){
+        if( aTabColMap[j]==0 ) aTabColMap[j] = i+1;
+        if( i!=j ) bIdListInOrder = 0;
+        if( j==pTab->iPKey ){
+          ipkColumn = i;  assert( !withoutRowid );
        }
-      }
-      if( j>=pTab->nCol ){
+#ifndef SQLITE_OMIT_GENERATED_COLUMNS
+        if( pTab->aCol[j].colFlags & (COLFLAG_STORED|COLFLAG_VIRTUAL) ){
+          sqlite3ErrorMsg(pParse,
+             "cannot INSERT into generated column \"%s\"",
+             pTab->aCol[j].zCnName);
+          goto insert_cleanup;
+        }
+#endif
+      }else{
        if( sqlite3IsRowid(pColumn->a[i].zName) && !withoutRowid ){
          ipkColumn = i;
          bIdListInOrder = 0;
@@ -1393,7 +1388,7 @@ void sqlite3Insert(
        continue;
      }else if( pColumn==0 ){
        /* Hidden columns that are not explicitly named in the INSERT
-        ** get there default value */
+        ** get their default value */
        sqlite3ExprCodeFactorable(pParse,
            sqlite3ColumnExpr(pTab, &pTab->aCol[i]),
            iRegStore);
@@ -1401,9 +1396,9 @@ void sqlite3Insert(
      }
    }
    if( pColumn ){
-      assert( pColumn->eU4==EU4_IDX );
-      for(j=0; j<pColumn->nId && pColumn->a[j].u4.idx!=i; j++){}
-      if( j>=pColumn->nId ){
+      j = aTabColMap[i];
+      assert( j>=0 && j<=pColumn->nId );   
+      if( j==0 ){
        /* A column not named in the insert column list gets its
        ** default value */
        sqlite3ExprCodeFactorable(pParse,
@@ -1411,7 +1406,7 @@ void sqlite3Insert(
            iRegStore);
        continue;
      }
-      k = j;
+      k = j - 1;
    }else if( nColumn==0 ){
      /* This is INSERT INTO ... DEFAULT VALUES.  Load the default value. */
      sqlite3ExprCodeFactorable(pParse,
@@ -1656,7 +1651,10 @@ insert_cleanup:
  sqlite3ExprListDelete(db, pList);
  sqlite3UpsertDelete(db, pUpsert);
  sqlite3SelectDelete(db, pSelect);
-  sqlite3IdListDelete(db, pColumn);
+  if( pColumn ){
+    sqlite3IdListDelete(db, pColumn);
+    sqlite3DbFree(db, aTabColMap);
+  }
  if( aRegIdx ) sqlite3DbNNFreeNN(db, aRegIdx);
 }

@@ -1086,7 +1086,7 @@ static void jsonWrongNumArgs(
 */
 static int jsonBlobExpand(JsonParse *pParse, u32 N){
  u8 *aNew;
-  u32 t;
+  u64 t;
  assert( N>pParse->nBlobAlloc );
  if( pParse->nBlobAlloc==0 ){
    t = 100;
@@ -1096,8 +1096,9 @@ static int jsonBlobExpand(JsonParse *pParse, u32 N){
  if( t<N ) t = N+100;
  aNew = sqlite3DbRealloc(pParse->db, pParse->aBlob, t);
  if( aNew==0 ){ pParse->oom = 1; return 1; }
+  assert( t<0x7fffffff );
  pParse->aBlob = aNew;
-  pParse->nBlobAlloc = t;
+  pParse->nBlobAlloc = (u32)t;
  return 0;
 }

@@ -2054,10 +2055,7 @@ static u32 jsonbPayloadSize(const JsonParse *pParse, u32 i, u32 *pSz){
  u8 x;
  u32 sz;
  u32 n;
-  if( NEVER(i>pParse->nBlob) ){
-    *pSz = 0;
-    return 0;
-  }
+  assert( i<=pParse->nBlob );
  x = pParse->aBlob[i]>>4;
  if( x<=11 ){
    sz = x;
@@ -2101,8 +2099,8 @@ static u32 jsonbPayloadSize(const JsonParse *pParse, u32 i, u32 *pSz){
  if( (i64)i+sz+n > pParse->nBlob
   && (i64)i+sz+n > pParse->nBlob-pParse->delta
  ){
-    sz = 0;
-    n = 0;
+    *pSz = 0;
+    return 0;
  }
  *pSz = sz;
  return n;
@@ -2199,9 +2197,12 @@ static u32 jsonTranslateBlobToText(
    }
    case JSONB_TEXT:
    case JSONB_TEXTJ: {
-      jsonAppendChar(pOut, '"');
-      jsonAppendRaw(pOut, (const char*)&pParse->aBlob[i+n], sz);
-      jsonAppendChar(pOut, '"');
+      if( pOut->nUsed+sz+2<=pOut->nAlloc || jsonStringGrow(pOut, sz+2)==0 ){
+        pOut->zBuf[pOut->nUsed] = '"';
+        memcpy(pOut->zBuf+pOut->nUsed+1,(const char*)&pParse->aBlob[i+n],sz);
+        pOut->zBuf[pOut->nUsed+sz+1] = '"';
+        pOut->nUsed += sz+2;
+      }
      break;
    }
    case JSONB_TEXT5: {
@@ -3116,7 +3117,7 @@ static void jsonReturnFromBlob(
      char *zOut;
      u32 nOut = sz;
      z = (const char*)&pParse->aBlob[i+n];
-      zOut = sqlite3DbMallocRaw(db, nOut+1);
+      zOut = sqlite3DbMallocRaw(db, ((u64)nOut)+1);
      if( zOut==0 ) goto returnfromblob_oom;
      for(iIn=iOut=0; iIn<sz; iIn++){
        char c = z[iIn];
@@ -759,17 +759,22 @@ int sqlite3_config(int op, ...){
 ** If lookaside is already active, return SQLITE_BUSY.
 **
 ** The sz parameter is the number of bytes in each lookaside slot.
-** The cnt parameter is the number of slots.  If pStart is NULL the
-** space for the lookaside memory is obtained from sqlite3_malloc().
-** If pStart is not NULL then it is sz*cnt bytes of memory to use for
-** the lookaside memory.
+** The cnt parameter is the number of slots.  If pBuf is NULL the
+** space for the lookaside memory is obtained from sqlite3_malloc()
+** or similar.  If pBuf is not NULL then it is sz*cnt bytes of memory
+** to use for the lookaside memory.
 */
-static int setupLookaside(sqlite3 *db, void *pBuf, int sz, int cnt){
+static int setupLookaside(
+  sqlite3 *db,    /* Database connection being configured */
+  void *pBuf,     /* Memory to use for lookaside.  May be NULL */
+  int sz,         /* Desired size of each lookaside memory slot */
+  int cnt         /* Number of slots to allocate */
+){
 #ifndef SQLITE_OMIT_LOOKASIDE
-  void *pStart;
-  sqlite3_int64 szAlloc = sz*(sqlite3_int64)cnt;
-  int nBig;   /* Number of full-size slots */
-  int nSm;    /* Number smaller LOOKASIDE_SMALL-byte slots */
+  void *pStart;          /* Start of the lookaside buffer */
+  sqlite3_int64 szAlloc; /* Total space set aside for lookaside memory */
+  int nBig;              /* Number of full-size slots */
+  int nSm;               /* Number smaller LOOKASIDE_SMALL-byte slots */
 
  if( sqlite3LookasideUsed(db,0)>0 ){
    return SQLITE_BUSY;
@@ -782,17 +787,22 @@ static int setupLookaside(sqlite3 *db, void *pBuf, int sz, int cnt){
    sqlite3_free(db->lookaside.pStart);
  }
  /* The size of a lookaside slot after ROUNDDOWN8 needs to be larger
-  ** than a pointer to be useful.
+  ** than a pointer and small enough to fit in a u16.
  */
-  sz = ROUNDDOWN8(sz);  /* IMP: R-33038-09382 */
+  sz = ROUNDDOWN8(sz);
  if( sz<=(int)sizeof(LookasideSlot*) ) sz = 0;
-  if( cnt<0 ) cnt = 0;
-  if( sz==0 || cnt==0 ){
+  if( sz>65528 ) sz = 65528;
+  /* Count must be at least 1 to be useful, but not so large as to use
+  ** more than 0x7fff0000 total bytes for lookaside. */
+  if( cnt<1 ) cnt = 0;
+  if( sz>0 && cnt>(0x7fff0000/sz) ) cnt = 0x7fff0000/sz;
+  szAlloc = (i64)sz*(i64)cnt;
+  if( szAlloc==0 ){
    sz = 0;
    pStart = 0;
  }else if( pBuf==0 ){
    sqlite3BeginBenignMalloc();
-    pStart = sqlite3Malloc( szAlloc );  /* IMP: R-61949-35727 */
+    pStart = sqlite3Malloc( szAlloc );
    sqlite3EndBenignMalloc();
    if( pStart ) szAlloc = sqlite3MallocSize(pStart);
  }else{
@@ -801,10 +811,10 @@ static int setupLookaside(sqlite3 *db, void *pBuf, int sz, int cnt){
 #ifndef SQLITE_OMIT_TWOSIZE_LOOKASIDE
  if( sz>=LOOKASIDE_SMALL*3 ){
    nBig = szAlloc/(3*LOOKASIDE_SMALL+sz);
-    nSm = (szAlloc - sz*nBig)/LOOKASIDE_SMALL;
+    nSm = (szAlloc - (i64)sz*(i64)nBig)/LOOKASIDE_SMALL;
  }else if( sz>=LOOKASIDE_SMALL*2 ){
    nBig = szAlloc/(LOOKASIDE_SMALL+sz);
-    nSm = (szAlloc - sz*nBig)/LOOKASIDE_SMALL;
+    nSm = (szAlloc - (i64)sz*(i64)nBig)/LOOKASIDE_SMALL;
  }else
 #endif /* SQLITE_OMIT_TWOSIZE_LOOKASIDE */
  if( sz>0 ){
@@ -959,7 +969,7 @@ int sqlite3_db_config(sqlite3 *db, int op, ...){
    default: {
      static const struct {
        int op;      /* The opcode */
-        u32 mask;    /* Mask of the bit in sqlite3.flags to set/clear */
+        u64 mask;    /* Mask of the bit in sqlite3.flags to set/clear */
      } aFlagOp[] = {
        { SQLITE_DBCONFIG_ENABLE_FKEY,           SQLITE_ForeignKeys    },
        { SQLITE_DBCONFIG_ENABLE_TRIGGER,        SQLITE_EnableTrigger  },
@@ -980,6 +990,9 @@ int sqlite3_db_config(sqlite3 *db, int op, ...){
        { SQLITE_DBCONFIG_TRUSTED_SCHEMA,        SQLITE_TrustedSchema  },
        { SQLITE_DBCONFIG_STMT_SCANSTATUS,       SQLITE_StmtScanStatus },
        { SQLITE_DBCONFIG_REVERSE_SCANORDER,     SQLITE_ReverseOrder   },
+        { SQLITE_DBCONFIG_ENABLE_ATTACH_CREATE,  SQLITE_AttachCreate   },
+        { SQLITE_DBCONFIG_ENABLE_ATTACH_WRITE,   SQLITE_AttachWrite    },
+        { SQLITE_DBCONFIG_ENABLE_COMMENTS,       SQLITE_Comments       },
      };
      unsigned int i;
      rc = SQLITE_ERROR; /* IMP: R-42790-23372 */
@@ -3321,6 +3334,9 @@ static int openDatabase(
                 | SQLITE_EnableTrigger
                 | SQLITE_EnableView
                 | SQLITE_CacheSpill
+                 | SQLITE_AttachCreate
+                 | SQLITE_AttachWrite
+                 | SQLITE_Comments
 #if !defined(SQLITE_TRUSTED_SCHEMA) || SQLITE_TRUSTED_SCHEMA+0!=0
                 | SQLITE_TrustedSchema
 #endif
@@ -3937,13 +3953,10 @@ int sqlite3_table_column_metadata(
  if( zColumnName==0 ){
    /* Query for existence of table only */
  }else{
-    for(iCol=0; iCol<pTab->nCol; iCol++){
+    iCol = sqlite3ColumnIndex(pTab, zColumnName);
+    if( iCol>=0 ){
      pCol = &pTab->aCol[iCol];
-      if( 0==sqlite3StrICmp(pCol->zCnName, zColumnName) ){
-        break;
-      }
-    }
-    if( iCol==pTab->nCol ){
+    }else{
      if( HasRowid(pTab) && sqlite3IsRowid(zColumnName) ){
        iCol = pTab->iPKey;
        pCol = iCol>=0 ? &pTab->aCol[iCol] : 0;
@@ -94,8 +94,13 @@ static SQLITE_WSD struct Mem5Global {
  ** Memory available for allocation
  */
  int szAtom;      /* Smallest possible allocation in bytes */
-  int nBlock;      /* Number of szAtom sized blocks in zPool */
-  u8 *zPool;       /* Memory available to be allocated */
+  int nBlock;      /* Number of szAtom sized blocks in aPool */
+  u8 *aPool;       /* Memory available to be allocated */
+  u8 *aEnd;        /* Last byte of aPool[] */
+
+#ifdef SQLITE_MEM5_FAILOVER
+  u64 nFailover;   /* Number of fail-over allocations taken from system heap */
+#endif
  
  /*
  ** Mutex to control access to the memory allocation subsystem.
@@ -137,10 +142,10 @@ static SQLITE_WSD struct Mem5Global {
 #define mem5 GLOBAL(struct Mem5Global, mem5)

 /*
-** Assuming mem5.zPool is divided up into an array of Mem5Link
+** Assuming mem5.aPool is divided up into an array of Mem5Link
 ** structures, return a pointer to the idx-th such link.
 */
-#define MEM5LINK(idx) ((Mem5Link *)(&mem5.zPool[(idx)*mem5.szAtom]))
+#define MEM5LINK(idx) ((Mem5Link *)(&mem5.aPool[(idx)*mem5.szAtom]))

 /*
 ** Unlink the chunk at mem5.aPool[i] from list it is currently
@@ -201,7 +206,14 @@ static void memsys5Leave(void){
 static int memsys5Size(void *p){
  int iSize, i;
  assert( p!=0 );
-  i = (int)(((u8 *)p-mem5.zPool)/mem5.szAtom);
+#ifdef SQLITE_MEM5_FAILOVER
+  if( ((u8*)p)<mem5.aPool || ((u8*)p)>mem5.aEnd ){
+    u64 *p64 = (u64*)p;
+    p64--;
+    return (int)p64[0];
+  }
+#endif
+  i = (int)(((u8*)p - mem5.aPool)/mem5.szAtom);
  assert( i>=0 && i<mem5.nBlock );
  iSize = mem5.szAtom * (1 << (mem5.aCtrl[i]&CTRL_LOGSIZE));
  return iSize;
@@ -277,11 +289,11 @@ static void *memsys5MallocUnsafe(int nByte){
 #ifdef SQLITE_DEBUG
  /* Make sure the allocated memory does not assume that it is set to zero
  ** or retains a value from a previous allocation */
-  memset(&mem5.zPool[i*mem5.szAtom], 0xAA, iFullSz);
+  memset(&mem5.aPool[i*mem5.szAtom], 0xAA, iFullSz);
 #endif

  /* Return a pointer to the allocated memory. */
-  return (void*)&mem5.zPool[i*mem5.szAtom];
+  return (void*)&mem5.aPool[i*mem5.szAtom];
 }

 /*
@@ -292,13 +304,13 @@ static void memsys5FreeUnsafe(void *pOld){
  int iBlock;

  /* Set iBlock to the index of the block pointed to by pOld in 
-  ** the array of mem5.szAtom byte blocks pointed to by mem5.zPool.
+  ** the array of mem5.szAtom byte blocks pointed to by mem5.aPool.
  */
-  iBlock = (int)(((u8 *)pOld-mem5.zPool)/mem5.szAtom);
+  iBlock = (int)(((u8 *)pOld-mem5.aPool)/mem5.szAtom);

  /* Check that the pointer pOld points to a valid, non-free block. */
  assert( iBlock>=0 && iBlock<mem5.nBlock );
-  assert( ((u8 *)pOld-mem5.zPool)%mem5.szAtom==0 );
+  assert( ((u8 *)pOld-mem5.aPool)%mem5.szAtom==0 );
  assert( (mem5.aCtrl[iBlock] & CTRL_FREE)==0 );

  iLogsize = mem5.aCtrl[iBlock] & CTRL_LOGSIZE;
@@ -344,7 +356,7 @@ static void memsys5FreeUnsafe(void *pOld){
 #ifdef SQLITE_DEBUG
  /* Overwrite freed memory with the 0x55 bit pattern to verify that it is
  ** not used after being freed */
-  memset(&mem5.zPool[iBlock*mem5.szAtom], 0x55, size);
+  memset(&mem5.aPool[iBlock*mem5.szAtom], 0x55, size);
 #endif

  memsys5Link(iBlock, iLogsize);
@@ -358,6 +370,20 @@ static void *memsys5Malloc(int nBytes){
  if( nBytes>0 ){
    memsys5Enter();
    p = memsys5MallocUnsafe(nBytes);
+#ifdef SQLITE_MEM5_FAILOVER
+    if( p==0
+     && (p = malloc(nBytes + sizeof(u64)))!=0
+    ){
+      u64 *p64 = (u64*)p;
+      p64[0] = nBytes;
+      p = (i64*)&p64[1];
+      mem5.nFailover++;
+      sqlite3StatusHighwater(SQLITE_STATUS_FAILOVER_SIZE, nBytes);
+      sqlite3StatusUp(SQLITE_STATUS_FAILOVER_USED, nBytes);
+      sqlite3StatusUp(SQLITE_STATUS_FAILOVER_COUNT, 1);
+      assert( ((u8*)p)<mem5.aPool || ((u8*)p)>mem5.aEnd );
+    }
+#endif
    memsys5Leave();
  }
  return (void*)p; 
@@ -372,7 +398,22 @@ static void *memsys5Malloc(int nBytes){
 static void memsys5Free(void *pPrior){
  assert( pPrior!=0 );
  memsys5Enter();
-  memsys5FreeUnsafe(pPrior);
+#ifdef SQLITE_MEM5_FAILOVER
+  if( mem5.nFailover
+   && pPrior!=0
+   && (((u8*)pPrior)>mem5.aEnd || ((u8*)pPrior)<mem5.aPool)
+  ){
+    u64 *p64 = (u64*)pPrior;
+    p64--;
+    sqlite3StatusDown(SQLITE_STATUS_FAILOVER_USED, (int)p64[0]);
+    sqlite3StatusDown(SQLITE_STATUS_FAILOVER_COUNT, 1);
+    free(p64);
+    mem5.nFailover--;
+  }else
+#endif
+  {
+    memsys5FreeUnsafe(pPrior);
+  }
  memsys5Leave();  
 }

@@ -459,7 +500,7 @@ static int memsys5Log(int iValue){
 static int memsys5Init(void *NotUsed){
  int ii;            /* Loop counter */
  int nByte;         /* Number of bytes of memory available to this allocator */
-  u8 *zByte;         /* Memory usable by this allocator */
+  u8 *aByte;         /* Memory usable by this allocator */
  int nMinLog;       /* Log base 2 of minimum allocation size in bytes */
  int iOffset;       /* An offset into mem5.aCtrl[] */

@@ -474,8 +515,8 @@ static int memsys5Init(void *NotUsed){
  assert( (sizeof(Mem5Link)&(sizeof(Mem5Link)-1))==0 );

  nByte = sqlite3GlobalConfig.nHeap;
-  zByte = (u8*)sqlite3GlobalConfig.pHeap;
-  assert( zByte!=0 );  /* sqlite3_config() does not allow otherwise */
+  aByte = (u8*)sqlite3GlobalConfig.pHeap;
+  assert( aByte!=0 );  /* sqlite3_config() does not allow otherwise */

  /* boundaries on sqlite3GlobalConfig.mnReq are enforced in sqlite3_config() */
  nMinLog = memsys5Log(sqlite3GlobalConfig.mnReq);
@@ -485,8 +526,9 @@ static int memsys5Init(void *NotUsed){
  }

  mem5.nBlock = (nByte / (mem5.szAtom+sizeof(u8)));
-  mem5.zPool = zByte;
-  mem5.aCtrl = (u8 *)&mem5.zPool[mem5.nBlock*mem5.szAtom];
+  mem5.aPool = aByte;
+  mem5.aEnd = aByte + nByte - 1;
+  mem5.aCtrl = &mem5.aPool[mem5.nBlock*mem5.szAtom];

  for(ii=0; ii<=LOGMAX; ii++){
    mem5.aiFreelist[ii] = -1;
@@ -567,13 +567,13 @@ static int memdbOpen(
    }
    if( p==0 ){
      MemStore **apNew;
-      p = sqlite3Malloc( sizeof(*p) + szName + 3 );
+      p = sqlite3Malloc( sizeof(*p) + (i64)szName + 3 );
      if( p==0 ){
        sqlite3_mutex_leave(pVfsMutex);
        return SQLITE_NOMEM;
      }
      apNew = sqlite3Realloc(memdb_g.apMemStore,
-                             sizeof(apNew[0])*(memdb_g.nMemStore+1) );
+                             sizeof(apNew[0])*(1+(i64)memdb_g.nMemStore) );
      if( apNew==0 ){
        sqlite3_free(p);
        sqlite3_mutex_leave(pVfsMutex);
@@ -1664,7 +1664,7 @@ static int unixFileLock(unixFile *pFile, struct flock *pLock){
  if( (pFile->ctrlFlags & (UNIXFILE_EXCL|UNIXFILE_RDONLY))==UNIXFILE_EXCL ){
    if( pInode->bProcessLock==0 ){
      struct flock lock;
-      assert( pInode->nLock==0 );
+      /* assert( pInode->nLock==0 ); <-- Not true if unix-excl READONLY used */
      lock.l_whence = SEEK_SET;
      lock.l_start = SHARED_FIRST;
      lock.l_len = SHARED_SIZE;
@@ -3938,7 +3938,7 @@ static int winOpenSharedMemory(winFile *pDbFd){
  p = sqlite3MallocZero( sizeof(*p) );
  if( p==0 ) return SQLITE_IOERR_NOMEM_BKPT;
  nName = sqlite3Strlen30(pDbFd->zPath);
-  pNew = sqlite3MallocZero( sizeof(*pShmNode) + nName + 17 );
+  pNew = sqlite3MallocZero( sizeof(*pShmNode) + (i64)nName + 17 );
  if( pNew==0 ){
    sqlite3_free(p);
    return SQLITE_IOERR_NOMEM_BKPT;
@@ -4759,7 +4759,7 @@ static int winGetTempname(sqlite3_vfs *pVfs, char **pzBuf){
  size_t i, j;
  DWORD pid;
  int nPre = sqlite3Strlen30(SQLITE_TEMP_FILE_PREFIX);
-  int nMax, nBuf, nDir, nLen;
+  i64 nMax, nBuf, nDir, nLen;
  char *zBuf;

  /* It's odd to simulate an io-error here, but really this is just
@@ -4771,7 +4771,8 @@ static int winGetTempname(sqlite3_vfs *pVfs, char **pzBuf){
  /* Allocate a temporary buffer to store the fully qualified file
  ** name for the temporary file.  If this fails, we cannot continue.
  */
-  nMax = pVfs->mxPathname; nBuf = nMax + 2;
+  nMax = pVfs->mxPathname;
+  nBuf = 2 + (i64)nMax;
  zBuf = sqlite3MallocZero( nBuf );
  if( !zBuf ){
    OSTRACE(("TEMP-FILENAME rc=SQLITE_IOERR_NOMEM\n"));
@@ -5630,7 +5631,7 @@ static int winFullPathnameNoMutex(
    **       for converting the relative path name to an absolute
    **       one by prepending the data directory and a slash.
    */
-    char *zOut = sqlite3MallocZero( pVfs->mxPathname+1 );
+    char *zOut = sqlite3MallocZero( 1+(u64)pVfs->mxPathname );
    if( !zOut ){
      return SQLITE_IOERR_NOMEM_BKPT;
    }
@@ -5725,13 +5726,12 @@ static int winFullPathnameNoMutex(
      return winLogError(SQLITE_CANTOPEN_FULLPATH, osGetLastError(),
                         "winFullPathname1", zRelative);
    }
-    nByte += 3;
-    zTemp = sqlite3MallocZero( nByte*sizeof(zTemp[0]) );
+    zTemp = sqlite3MallocZero( nByte*sizeof(zTemp[0]) + 3*sizeof(zTemp[0]) );
    if( zTemp==0 ){
      sqlite3_free(zConverted);
      return SQLITE_IOERR_NOMEM_BKPT;
    }
-    nByte = osGetFullPathNameW((LPCWSTR)zConverted, nByte, zTemp, 0);
+    nByte = osGetFullPathNameW((LPCWSTR)zConverted, nByte+3, zTemp, 0);
    if( nByte==0 ){
      sqlite3_free(zConverted);
      sqlite3_free(zTemp);
@@ -5751,13 +5751,12 @@ static int winFullPathnameNoMutex(
      return winLogError(SQLITE_CANTOPEN_FULLPATH, osGetLastError(),
                         "winFullPathname3", zRelative);
    }
-    nByte += 3;
-    zTemp = sqlite3MallocZero( nByte*sizeof(zTemp[0]) );
+    zTemp = sqlite3MallocZero( nByte*sizeof(zTemp[0]) + 3*sizeof(zTemp[0]) );
    if( zTemp==0 ){
      sqlite3_free(zConverted);
      return SQLITE_IOERR_NOMEM_BKPT;
    }
-    nByte = osGetFullPathNameA((char*)zConverted, nByte, zTemp, 0);
+    nByte = osGetFullPathNameA((char*)zConverted, nByte+3, zTemp, 0);
    if( nByte==0 ){
      sqlite3_free(zConverted);
      sqlite3_free(zTemp);
@@ -808,7 +808,7 @@ int sqlite3PagerDirectReadOk(Pager *pPager, Pgno pgno){
  if( pPager->pWal ){
    u32 iRead = 0;
    (void)sqlite3WalFindFrame(pPager->pWal, pgno, &iRead);
-    return iRead==0; /* Condition (4) */
+    if( iRead ) return 0;  /* Case (4) */
  }
 #endif
  assert( pPager->fd->pMethods->xDeviceCharacteristics!=0 );
@@ -1291,7 +1291,7 @@ static void checkPage(PgHdr *pPg){
 ** If an error occurs while reading from the journal file, an SQLite
 ** error code is returned.
 */
-static int readSuperJournal(sqlite3_file *pJrnl, char *zSuper, u32 nSuper){
+static int readSuperJournal(sqlite3_file *pJrnl, char *zSuper, u64 nSuper){
  int rc;                    /* Return code */
  u32 len;                   /* Length in bytes of super-journal name */
  i64 szJ;                   /* Total size in bytes of journal file pJrnl */
@@ -2527,12 +2527,12 @@ static int pager_delsuper(Pager *pPager, const char *zSuper){
  char *zJournal;           /* Pointer to one journal within MJ file */
  char *zSuperPtr;          /* Space to hold super-journal filename */
  char *zFree = 0;          /* Free this buffer */
-  int nSuperPtr;            /* Amount of space allocated to zSuperPtr[] */
+  i64 nSuperPtr;            /* Amount of space allocated to zSuperPtr[] */

  /* Allocate space for both the pJournal and pSuper file descriptors.
  ** If successful, open the super-journal file for reading.
  */
-  pSuper = (sqlite3_file *)sqlite3MallocZero(pVfs->szOsFile * 2);
+  pSuper = (sqlite3_file *)sqlite3MallocZero(2 * (i64)pVfs->szOsFile);
  if( !pSuper ){
    rc = SQLITE_NOMEM_BKPT;
    pJournal = 0;
@@ -2550,11 +2550,14 @@ static int pager_delsuper(Pager *pPager, const char *zSuper){
  */
  rc = sqlite3OsFileSize(pSuper, &nSuperJournal);
  if( rc!=SQLITE_OK ) goto delsuper_out;
-  nSuperPtr = pVfs->mxPathname+1;
+  nSuperPtr = 1 + (i64)pVfs->mxPathname;
+  assert( nSuperJournal>=0 && nSuperPtr>0 );
  zFree = sqlite3Malloc(4 + nSuperJournal + nSuperPtr + 2);
  if( !zFree ){
    rc = SQLITE_NOMEM_BKPT;
    goto delsuper_out;
+  }else{
+    assert( nSuperJournal<=0x7fffffff );
  }
  zFree[0] = zFree[1] = zFree[2] = zFree[3] = 0;
  zSuperJournal = &zFree[4];
@@ -2815,7 +2818,7 @@ static int pager_playback(Pager *pPager, int isHot){
  ** for pageSize.
  */
  zSuper = pPager->pTmpSpace;
-  rc = readSuperJournal(pPager->jfd, zSuper, pPager->pVfs->mxPathname+1);
+  rc = readSuperJournal(pPager->jfd, zSuper, 1+(i64)pPager->pVfs->mxPathname);
  if( rc==SQLITE_OK && zSuper[0] ){
    rc = sqlite3OsAccess(pVfs, zSuper, SQLITE_ACCESS_EXISTS, &res);
  }
@@ -2954,7 +2957,7 @@ end_playback:
    ** which case it requires 4 0x00 bytes in memory immediately before
    ** the filename. */
    zSuper = &pPager->pTmpSpace[4];
-    rc = readSuperJournal(pPager->jfd, zSuper, pPager->pVfs->mxPathname+1);
+    rc = readSuperJournal(pPager->jfd, zSuper, 1+(i64)pPager->pVfs->mxPathname);
    testcase( rc!=SQLITE_OK );
  }
  if( rc==SQLITE_OK
@@ -4724,6 +4727,7 @@ int sqlite3PagerOpen(
  u32 szPageDflt = SQLITE_DEFAULT_PAGE_SIZE;  /* Default page size */
  const char *zUri = 0;    /* URI args to copy */
  int nUriByte = 1;        /* Number of bytes of URI args at *zUri */
+  

  /* Figure out how much space is required for each journal file-handle
  ** (there are two of them, the main journal and the sub-journal).  */
@@ -4750,8 +4754,8 @@ int sqlite3PagerOpen(
  */
  if( zFilename && zFilename[0] ){
    const char *z;
-    nPathname = pVfs->mxPathname+1;
-    zPathname = sqlite3DbMallocRaw(0, nPathname*2);
+    nPathname = pVfs->mxPathname + 1;
+    zPathname = sqlite3DbMallocRaw(0, 2*(i64)nPathname);
    if( zPathname==0 ){
      return SQLITE_NOMEM_BKPT;
    }
@@ -4838,14 +4842,14 @@ int sqlite3PagerOpen(
    ROUND8(sizeof(*pPager)) +            /* Pager structure */
    ROUND8(pcacheSize) +                 /* PCache object */
    ROUND8(pVfs->szOsFile) +             /* The main db file */
-    journalFileSize * 2 +                /* The two journal files */
+    (u64)journalFileSize * 2 +           /* The two journal files */
    SQLITE_PTRSIZE +                     /* Space to hold a pointer */
    4 +                                  /* Database prefix */
-    nPathname + 1 +                      /* database filename */
-    nUriByte +                           /* query parameters */
-    nPathname + 8 + 1 +                  /* Journal filename */
+    (u64)nPathname + 1 +                 /* database filename */
+    (u64)nUriByte +                      /* query parameters */
+    (u64)nPathname + 8 + 1 +             /* Journal filename */
 #ifndef SQLITE_OMIT_WAL
-    nPathname + 4 + 1 +                  /* WAL filename */
+    (u64)nPathname + 4 + 1 +             /* WAL filename */
 #endif
    3                                    /* Terminator */
  );
@@ -62,6 +62,11 @@
 %include {
 #include "sqliteInt.h"

+/*
+** Verify that the pParse->isCreate field is set
+*/
+#define ASSERT_IS_CREATE   assert(pParse->isCreate)
+
 /*
 ** Disable all error recovery processing in the parser push-down
 ** automaton.
@@ -125,6 +130,10 @@ static void parserSyntaxError(Parse *pParse, Token *p){
 static void disableLookaside(Parse *pParse){
  sqlite3 *db = pParse->db;
  pParse->disableLookaside++;
+#ifdef SQLITE_DEBUG
+  pParse->isCreate = 1;
+#endif
+  memset(&pParse->u1.cr, 0, sizeof(pParse->u1.cr));
  DisableLookaside;
 }

@@ -197,7 +206,9 @@ cmd ::= create_table create_table_args.
 create_table ::= createkw temp(T) TABLE ifnotexists(E) nm(Y) dbnm(Z). {
   sqlite3StartTable(pParse,&Y,&Z,T,0,0,E);
 }
-createkw(A) ::= CREATE(A).  {disableLookaside(pParse);}
+createkw(A) ::= CREATE(A).  {
+  disableLookaside(pParse);
+}

 %type ifnotexists {int}
 ifnotexists(A) ::= .              {A = 0;}
@@ -373,7 +384,7 @@ scantok(A) ::= . {
 //
 carglist ::= carglist ccons.
 carglist ::= .
-ccons ::= CONSTRAINT nm(X).           {pParse->constraintName = X;}
+ccons ::= CONSTRAINT nm(X). {ASSERT_IS_CREATE; pParse->u1.cr.constraintName = X;}
 ccons ::= DEFAULT scantok(A) term(X).
                            {sqlite3AddDefaultValue(pParse,X,A.z,&A.z[A.n]);}
 ccons ::= DEFAULT LP(A) expr(X) RP(Z).
@@ -448,9 +459,9 @@ conslist_opt(A) ::= .                         {A.n = 0; A.z = 0;}
 conslist_opt(A) ::= COMMA(A) conslist.
 conslist ::= conslist tconscomma tcons.
 conslist ::= tcons.
-tconscomma ::= COMMA.            {pParse->constraintName.n = 0;}
+tconscomma ::= COMMA.          {ASSERT_IS_CREATE; pParse->u1.cr.constraintName.n = 0;}
 tconscomma ::= .
-tcons ::= CONSTRAINT nm(X).      {pParse->constraintName = X;}
+tcons ::= CONSTRAINT nm(X).    {ASSERT_IS_CREATE; pParse->u1.cr.constraintName = X;}
 tcons ::= PRIMARY KEY LP sortlist(X) autoinc(I) RP onconf(R).
                                 {sqlite3AddPrimaryKey(pParse,X,R,I,0);}
 tcons ::= UNIQUE LP sortlist(X) RP onconf(R).
@@ -1659,6 +1670,10 @@ trigger_decl(A) ::= temp(T) TRIGGER ifnotexists(NOERR) nm(B) dbnm(Z)
                    ON fullname(E) foreach_clause when_clause(G). {
  sqlite3BeginTrigger(pParse, &B, &Z, C, D.a, D.b, E, G, T, NOERR);
  A = (Z.n==0?B:Z); /*A-overwrites-T*/
+#ifdef SQLITE_DEBUG
+  assert( pParse->isCreate ); /* Set by createkw reduce action */
+  pParse->isCreate = 0;       /* But, should not be set for CREATE TRIGGER */
+#endif
 }

 %type trigger_time {int}
@@ -1882,7 +1897,8 @@ wqlist(A) ::= wqlist(A) COMMA wqitem(X). {
 // These must be at the end of this file. Specifically, the rules that
 // introduce tokens WINDOW, OVER and FILTER must appear last. This causes 
 // the integer values assigned to these tokens to be larger than all other 
-// tokens that may be output by the tokenizer except TK_SPACE and TK_ILLEGAL.
+// tokens that may be output by the tokenizer except TK_SPACE, TK_COMMENT,
+// and TK_ILLEGAL.
 //
 %ifndef SQLITE_OMIT_WINDOWFUNC
 %type windowdefn_list {Window*}
@@ -2059,9 +2075,9 @@ term(A) ::= QNUMBER(X). {
 }

 /*
-** The TK_SPACE and TK_ILLEGAL tokens must be the last two tokens.  The
-** parser depends on this.  Those tokens are not used in any grammar rule.
-** They are only used by the tokenizer.  Declare them last so that they
-** are guaranteed to be the last two tokens
+** The TK_SPACE, TK_COMMENT, and TK_ILLEGAL tokens must be the last three
+** tokens.  The parser depends on this.  Those tokens are not used in any
+** grammar rule.  They are only used by the tokenizer.  Declare them last
+** so that they are guaranteed to be the last three.
 */
-%token SPACE ILLEGAL.
+%token SPACE COMMENT ILLEGAL.
@@ -538,12 +538,12 @@ static int pcache1UnderMemoryPressure(PCache1 *pCache){
 */
 static void pcache1ResizeHash(PCache1 *p){
  PgHdr1 **apNew;
-  unsigned int nNew;
-  unsigned int i;
+  u64 nNew;
+  u32 i;

  assert( sqlite3_mutex_held(p->pGroup->mutex) );

-  nNew = p->nHash*2;
+  nNew = 2*(u64)p->nHash;
  if( nNew<256 ){
    nNew = 256;
  }
@@ -766,7 +766,7 @@ static void pcache1Destroy(sqlite3_pcache *p);
 static sqlite3_pcache *pcache1Create(int szPage, int szExtra, int bPurgeable){
  PCache1 *pCache;      /* The newly created page cache */
  PGroup *pGroup;       /* The group the new page cache will belong to */
-  int sz;               /* Bytes of memory required to allocate the new cache */
+  i64 sz;               /* Bytes of memory required to allocate the new cache */

  assert( (szPage & (szPage-1))==0 && szPage>=512 && szPage<=65536 );
  assert( szExtra < 300 );
@@ -1153,7 +1153,10 @@ void sqlite3Pragma(
        }
      }else{
        db->flags &= ~mask;
-        if( mask==SQLITE_DeferFKs ) db->nDeferredImmCons = 0;
+        if( mask==SQLITE_DeferFKs ){
+          db->nDeferredImmCons = 0;
+          db->nDeferredCons = 0;
+        }
        if( (mask & SQLITE_WriteSchema)!=0
         && sqlite3_stricmp(zRight, "reset")==0
        ){
@@ -1,660 +0,0 @@
-/* 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.
-*/
-
-/* The various pragma types */
-#define PragTyp_ACTIVATE_EXTENSIONS            0
-#define PragTyp_ANALYSIS_LIMIT                 1
-#define PragTyp_HEADER_VALUE                   2
-#define PragTyp_AUTO_VACUUM                    3
-#define PragTyp_FLAG                           4
-#define PragTyp_BUSY_TIMEOUT                   5
-#define PragTyp_CACHE_SIZE                     6
-#define PragTyp_CACHE_SPILL                    7
-#define PragTyp_CASE_SENSITIVE_LIKE            8
-#define PragTyp_COLLATION_LIST                 9
-#define PragTyp_COMPILE_OPTIONS               10
-#define PragTyp_DATA_STORE_DIRECTORY          11
-#define PragTyp_DATABASE_LIST                 12
-#define PragTyp_DEFAULT_CACHE_SIZE            13
-#define PragTyp_ENCODING                      14
-#define PragTyp_FOREIGN_KEY_CHECK             15
-#define PragTyp_FOREIGN_KEY_LIST              16
-#define PragTyp_FUNCTION_LIST                 17
-#define PragTyp_HARD_HEAP_LIMIT               18
-#define PragTyp_INCREMENTAL_VACUUM            19
-#define PragTyp_INDEX_INFO                    20
-#define PragTyp_INDEX_LIST                    21
-#define PragTyp_INTEGRITY_CHECK               22
-#define PragTyp_JOURNAL_MODE                  23
-#define PragTyp_JOURNAL_SIZE_LIMIT            24
-#define PragTyp_LOCK_PROXY_FILE               25
-#define PragTyp_LOCKING_MODE                  26
-#define PragTyp_PAGE_COUNT                    27
-#define PragTyp_MMAP_SIZE                     28
-#define PragTyp_MODULE_LIST                   29
-#define PragTyp_OPTIMIZE                      30
-#define PragTyp_PAGE_SIZE                     31
-#define PragTyp_PRAGMA_LIST                   32
-#define PragTyp_SECURE_DELETE                 33
-#define PragTyp_SHRINK_MEMORY                 34
-#define PragTyp_SOFT_HEAP_LIMIT               35
-#define PragTyp_SYNCHRONOUS                   36
-#define PragTyp_TABLE_INFO                    37
-#define PragTyp_TABLE_LIST                    38
-#define PragTyp_TEMP_STORE                    39
-#define PragTyp_TEMP_STORE_DIRECTORY          40
-#define PragTyp_THREADS                       41
-#define PragTyp_WAL_AUTOCHECKPOINT            42
-#define PragTyp_WAL_CHECKPOINT                43
-#define PragTyp_LOCK_STATUS                   44
-#define PragTyp_STATS                         45
-
-/* Property flags associated with various pragma. */
-#define PragFlg_NeedSchema 0x01 /* Force schema load before running */
-#define PragFlg_NoColumns  0x02 /* OP_ResultRow called with zero columns */
-#define PragFlg_NoColumns1 0x04 /* zero columns if RHS argument is present */
-#define PragFlg_ReadOnly   0x08 /* Read-only HEADER_VALUE */
-#define PragFlg_Result0    0x10 /* Acts as query when no argument */
-#define PragFlg_Result1    0x20 /* Acts as query when has one argument */
-#define PragFlg_SchemaOpt  0x40 /* Schema restricts name search if present */
-#define PragFlg_SchemaReq  0x80 /* Schema required - "main" is default */
-
-/* Names of columns for pragmas that return multi-column result
-** or that return single-column results where the name of the
-** result column is different from the name of the pragma
-*/
-static const char *const pragCName[] = {
-  /*   0 */ "id",          /* Used by: foreign_key_list */
-  /*   1 */ "seq",        
-  /*   2 */ "table",      
-  /*   3 */ "from",       
-  /*   4 */ "to",         
-  /*   5 */ "on_update",  
-  /*   6 */ "on_delete",  
-  /*   7 */ "match",      
-  /*   8 */ "cid",         /* Used by: table_xinfo */
-  /*   9 */ "name",       
-  /*  10 */ "type",       
-  /*  11 */ "notnull",    
-  /*  12 */ "dflt_value", 
-  /*  13 */ "pk",         
-  /*  14 */ "hidden",     
-                           /* table_info reuses 8 */
-  /*  15 */ "schema",      /* Used by: table_list */
-  /*  16 */ "name",       
-  /*  17 */ "type",       
-  /*  18 */ "ncol",       
-  /*  19 */ "wr",         
-  /*  20 */ "strict",     
-  /*  21 */ "seqno",       /* Used by: index_xinfo */
-  /*  22 */ "cid",        
-  /*  23 */ "name",       
-  /*  24 */ "desc",       
-  /*  25 */ "coll",       
-  /*  26 */ "key",        
-  /*  27 */ "name",        /* Used by: function_list */
-  /*  28 */ "builtin",    
-  /*  29 */ "type",       
-  /*  30 */ "enc",        
-  /*  31 */ "narg",       
-  /*  32 */ "flags",      
-  /*  33 */ "tbl",         /* Used by: stats */
-  /*  34 */ "idx",        
-  /*  35 */ "wdth",       
-  /*  36 */ "hght",       
-  /*  37 */ "flgs",       
-  /*  38 */ "seq",         /* Used by: index_list */
-  /*  39 */ "name",       
-  /*  40 */ "unique",     
-  /*  41 */ "origin",     
-  /*  42 */ "partial",    
-  /*  43 */ "table",       /* Used by: foreign_key_check */
-  /*  44 */ "rowid",      
-  /*  45 */ "parent",     
-  /*  46 */ "fkid",       
-                           /* index_info reuses 21 */
-  /*  47 */ "seq",         /* Used by: database_list */
-  /*  48 */ "name",       
-  /*  49 */ "file",       
-  /*  50 */ "busy",        /* Used by: wal_checkpoint */
-  /*  51 */ "log",        
-  /*  52 */ "checkpointed",
-                           /* collation_list reuses 38 */
-  /*  53 */ "database",    /* Used by: lock_status */
-  /*  54 */ "status",     
-  /*  55 */ "cache_size",  /* Used by: default_cache_size */
-                           /* module_list pragma_list reuses 9 */
-  /*  56 */ "timeout",     /* Used by: busy_timeout */
-};
-
-/* Definitions of all built-in pragmas */
-typedef struct PragmaName {
-  const char *const zName; /* Name of pragma */
-  u8 ePragTyp;             /* PragTyp_XXX value */
-  u8 mPragFlg;             /* Zero or more PragFlg_XXX values */
-  u8 iPragCName;           /* Start of column names in pragCName[] */
-  u8 nPragCName;           /* Num of col names. 0 means use pragma name */
-  u64 iArg;                /* Extra argument */
-} PragmaName;
-static const PragmaName aPragmaName[] = {
-#if defined(SQLITE_ENABLE_CEROD)
- {/* zName:     */ "activate_extensions",
-  /* ePragTyp:  */ PragTyp_ACTIVATE_EXTENSIONS,
-  /* ePragFlg:  */ 0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
- {/* zName:     */ "analysis_limit",
-  /* ePragTyp:  */ PragTyp_ANALYSIS_LIMIT,
-  /* ePragFlg:  */ PragFlg_Result0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
- {/* zName:     */ "application_id",
-  /* ePragTyp:  */ PragTyp_HEADER_VALUE,
-  /* ePragFlg:  */ PragFlg_NoColumns1|PragFlg_Result0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ BTREE_APPLICATION_ID },
-#endif
-#if !defined(SQLITE_OMIT_AUTOVACUUM)
- {/* zName:     */ "auto_vacuum",
-  /* ePragTyp:  */ PragTyp_AUTO_VACUUM,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
-#if !defined(SQLITE_OMIT_AUTOMATIC_INDEX)
- {/* zName:     */ "automatic_index",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_AutoIndex },
-#endif
-#endif
- {/* zName:     */ "busy_timeout",
-  /* ePragTyp:  */ PragTyp_BUSY_TIMEOUT,
-  /* ePragFlg:  */ PragFlg_Result0,
-  /* ColNames:  */ 56, 1,
-  /* iArg:      */ 0 },
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
- {/* zName:     */ "cache_size",
-  /* ePragTyp:  */ PragTyp_CACHE_SIZE,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
- {/* zName:     */ "cache_spill",
-  /* ePragTyp:  */ PragTyp_CACHE_SPILL,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_SchemaReq|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_CASE_SENSITIVE_LIKE_PRAGMA)
- {/* zName:     */ "case_sensitive_like",
-  /* ePragTyp:  */ PragTyp_CASE_SENSITIVE_LIKE,
-  /* ePragFlg:  */ PragFlg_NoColumns,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
- {/* zName:     */ "cell_size_check",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_CellSizeCk },
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
- {/* zName:     */ "checkpoint_fullfsync",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_CkptFullFSync },
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
- {/* zName:     */ "collation_list",
-  /* ePragTyp:  */ PragTyp_COLLATION_LIST,
-  /* ePragFlg:  */ PragFlg_Result0,
-  /* ColNames:  */ 38, 2,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_COMPILEOPTION_DIAGS)
- {/* zName:     */ "compile_options",
-  /* ePragTyp:  */ PragTyp_COMPILE_OPTIONS,
-  /* ePragFlg:  */ PragFlg_Result0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
- {/* zName:     */ "count_changes",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_CountRows },
-#endif
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS) && SQLITE_OS_WIN
- {/* zName:     */ "data_store_directory",
-  /* ePragTyp:  */ PragTyp_DATA_STORE_DIRECTORY,
-  /* ePragFlg:  */ PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
- {/* zName:     */ "data_version",
-  /* ePragTyp:  */ PragTyp_HEADER_VALUE,
-  /* ePragFlg:  */ PragFlg_ReadOnly|PragFlg_Result0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ BTREE_DATA_VERSION },
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
- {/* zName:     */ "database_list",
-  /* ePragTyp:  */ PragTyp_DATABASE_LIST,
-  /* ePragFlg:  */ PragFlg_Result0,
-  /* ColNames:  */ 47, 3,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS) && !defined(SQLITE_OMIT_DEPRECATED)
- {/* zName:     */ "default_cache_size",
-  /* ePragTyp:  */ PragTyp_DEFAULT_CACHE_SIZE,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq|PragFlg_NoColumns1,
-  /* ColNames:  */ 55, 1,
-  /* 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,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_DeferFKs },
-#endif
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
- {/* zName:     */ "empty_result_callbacks",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_NullCallback },
-#endif
-#if !defined(SQLITE_OMIT_UTF16)
- {/* zName:     */ "encoding",
-  /* ePragTyp:  */ PragTyp_ENCODING,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FOREIGN_KEY) && !defined(SQLITE_OMIT_TRIGGER)
- {/* zName:     */ "foreign_key_check",
-  /* ePragTyp:  */ PragTyp_FOREIGN_KEY_CHECK,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_Result1|PragFlg_SchemaOpt,
-  /* ColNames:  */ 43, 4,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FOREIGN_KEY)
- {/* zName:     */ "foreign_key_list",
-  /* ePragTyp:  */ PragTyp_FOREIGN_KEY_LIST,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result1|PragFlg_SchemaOpt,
-  /* ColNames:  */ 0, 8,
-  /* 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,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_ForeignKeys },
-#endif
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
- {/* zName:     */ "freelist_count",
-  /* ePragTyp:  */ PragTyp_HEADER_VALUE,
-  /* ePragFlg:  */ PragFlg_ReadOnly|PragFlg_Result0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ BTREE_FREE_PAGE_COUNT },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
- {/* zName:     */ "full_column_names",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_FullColNames },
- {/* zName:     */ "fullfsync",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_FullFSync },
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
-#if !defined(SQLITE_OMIT_INTROSPECTION_PRAGMAS)
- {/* zName:     */ "function_list",
-  /* ePragTyp:  */ PragTyp_FUNCTION_LIST,
-  /* ePragFlg:  */ PragFlg_Result0,
-  /* ColNames:  */ 27, 6,
-  /* iArg:      */ 0 },
-#endif
-#endif
- {/* zName:     */ "hard_heap_limit",
-  /* ePragTyp:  */ PragTyp_HARD_HEAP_LIMIT,
-  /* ePragFlg:  */ PragFlg_Result0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
-#if !defined(SQLITE_OMIT_CHECK)
- {/* zName:     */ "ignore_check_constraints",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_IgnoreChecks },
-#endif
-#endif
-#if !defined(SQLITE_OMIT_AUTOVACUUM)
- {/* zName:     */ "incremental_vacuum",
-  /* ePragTyp:  */ PragTyp_INCREMENTAL_VACUUM,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_NoColumns,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
- {/* zName:     */ "index_info",
-  /* ePragTyp:  */ PragTyp_INDEX_INFO,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result1|PragFlg_SchemaOpt,
-  /* ColNames:  */ 21, 3,
-  /* iArg:      */ 0 },
- {/* zName:     */ "index_list",
-  /* ePragTyp:  */ PragTyp_INDEX_LIST,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result1|PragFlg_SchemaOpt,
-  /* ColNames:  */ 38, 5,
-  /* iArg:      */ 0 },
- {/* zName:     */ "index_xinfo",
-  /* ePragTyp:  */ PragTyp_INDEX_INFO,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result1|PragFlg_SchemaOpt,
-  /* ColNames:  */ 21, 6,
-  /* iArg:      */ 1 },
-#endif
-#if !defined(SQLITE_OMIT_INTEGRITY_CHECK)
- {/* zName:     */ "integrity_check",
-  /* ePragTyp:  */ PragTyp_INTEGRITY_CHECK,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_Result1|PragFlg_SchemaOpt,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
- {/* zName:     */ "journal_mode",
-  /* ePragTyp:  */ PragTyp_JOURNAL_MODE,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
- {/* zName:     */ "journal_size_limit",
-  /* ePragTyp:  */ PragTyp_JOURNAL_SIZE_LIMIT,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_SchemaReq,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
- {/* zName:     */ "legacy_alter_table",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_LegacyAlter },
-#endif
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS) && SQLITE_ENABLE_LOCKING_STYLE
- {/* zName:     */ "lock_proxy_file",
-  /* ePragTyp:  */ PragTyp_LOCK_PROXY_FILE,
-  /* ePragFlg:  */ PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
- {/* zName:     */ "lock_status",
-  /* ePragTyp:  */ PragTyp_LOCK_STATUS,
-  /* ePragFlg:  */ PragFlg_Result0,
-  /* ColNames:  */ 53, 2,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
- {/* zName:     */ "locking_mode",
-  /* ePragTyp:  */ PragTyp_LOCKING_MODE,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_SchemaReq,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
- {/* zName:     */ "max_page_count",
-  /* ePragTyp:  */ PragTyp_PAGE_COUNT,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
- {/* zName:     */ "mmap_size",
-  /* ePragTyp:  */ PragTyp_MMAP_SIZE,
-  /* ePragFlg:  */ 0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
-#if !defined(SQLITE_OMIT_VIRTUALTABLE)
-#if !defined(SQLITE_OMIT_INTROSPECTION_PRAGMAS)
- {/* zName:     */ "module_list",
-  /* ePragTyp:  */ PragTyp_MODULE_LIST,
-  /* ePragFlg:  */ PragFlg_Result0,
-  /* ColNames:  */ 9, 1,
-  /* iArg:      */ 0 },
-#endif
-#endif
-#endif
- {/* zName:     */ "optimize",
-  /* ePragTyp:  */ PragTyp_OPTIMIZE,
-  /* ePragFlg:  */ PragFlg_Result1|PragFlg_NeedSchema,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
- {/* zName:     */ "page_count",
-  /* ePragTyp:  */ PragTyp_PAGE_COUNT,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
- {/* zName:     */ "page_size",
-  /* ePragTyp:  */ PragTyp_PAGE_SIZE,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_SchemaReq|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
-#if defined(SQLITE_DEBUG)
- {/* zName:     */ "parser_trace",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_ParserTrace },
-#endif
-#endif
-#if !defined(SQLITE_OMIT_INTROSPECTION_PRAGMAS)
- {/* zName:     */ "pragma_list",
-  /* ePragTyp:  */ PragTyp_PRAGMA_LIST,
-  /* ePragFlg:  */ PragFlg_Result0,
-  /* ColNames:  */ 9, 1,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
- {/* zName:     */ "query_only",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_QueryOnly },
-#endif
-#if !defined(SQLITE_OMIT_INTEGRITY_CHECK)
- {/* zName:     */ "quick_check",
-  /* ePragTyp:  */ PragTyp_INTEGRITY_CHECK,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_Result1|PragFlg_SchemaOpt,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
- {/* zName:     */ "read_uncommitted",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_ReadUncommit },
- {/* zName:     */ "recursive_triggers",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_RecTriggers },
- {/* zName:     */ "reverse_unordered_selects",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_ReverseOrder },
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
- {/* zName:     */ "schema_version",
-  /* ePragTyp:  */ PragTyp_HEADER_VALUE,
-  /* ePragFlg:  */ PragFlg_NoColumns1|PragFlg_Result0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ BTREE_SCHEMA_VERSION },
-#endif
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
- {/* zName:     */ "secure_delete",
-  /* ePragTyp:  */ PragTyp_SECURE_DELETE,
-  /* ePragFlg:  */ PragFlg_Result0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
- {/* zName:     */ "short_column_names",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_ShortColNames },
-#endif
- {/* zName:     */ "shrink_memory",
-  /* ePragTyp:  */ PragTyp_SHRINK_MEMORY,
-  /* ePragFlg:  */ PragFlg_NoColumns,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
- {/* zName:     */ "soft_heap_limit",
-  /* ePragTyp:  */ PragTyp_SOFT_HEAP_LIMIT,
-  /* ePragFlg:  */ PragFlg_Result0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
-#if defined(SQLITE_DEBUG)
- {/* zName:     */ "sql_trace",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_SqlTrace },
-#endif
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS) && defined(SQLITE_DEBUG)
- {/* zName:     */ "stats",
-  /* ePragTyp:  */ PragTyp_STATS,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq,
-  /* ColNames:  */ 33, 5,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
- {/* zName:     */ "synchronous",
-  /* ePragTyp:  */ PragTyp_SYNCHRONOUS,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
- {/* zName:     */ "table_info",
-  /* ePragTyp:  */ PragTyp_TABLE_INFO,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result1|PragFlg_SchemaOpt,
-  /* ColNames:  */ 8, 6,
-  /* iArg:      */ 0 },
- {/* zName:     */ "table_list",
-  /* ePragTyp:  */ PragTyp_TABLE_LIST,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result1,
-  /* ColNames:  */ 15, 6,
-  /* iArg:      */ 0 },
- {/* zName:     */ "table_xinfo",
-  /* ePragTyp:  */ PragTyp_TABLE_INFO,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result1|PragFlg_SchemaOpt,
-  /* ColNames:  */ 8, 7,
-  /* iArg:      */ 1 },
-#endif
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
- {/* zName:     */ "temp_store",
-  /* ePragTyp:  */ PragTyp_TEMP_STORE,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
- {/* zName:     */ "temp_store_directory",
-  /* ePragTyp:  */ PragTyp_TEMP_STORE_DIRECTORY,
-  /* ePragFlg:  */ PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
- {/* zName:     */ "threads",
-  /* ePragTyp:  */ PragTyp_THREADS,
-  /* ePragFlg:  */ PragFlg_Result0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
- {/* zName:     */ "trusted_schema",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_TrustedSchema },
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
- {/* zName:     */ "user_version",
-  /* ePragTyp:  */ PragTyp_HEADER_VALUE,
-  /* ePragFlg:  */ PragFlg_NoColumns1|PragFlg_Result0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ BTREE_USER_VERSION },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
-#if defined(SQLITE_DEBUG)
- {/* zName:     */ "vdbe_addoptrace",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_VdbeAddopTrace },
- {/* zName:     */ "vdbe_debug",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_SqlTrace|SQLITE_VdbeListing|SQLITE_VdbeTrace },
- {/* zName:     */ "vdbe_eqp",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_VdbeEQP },
- {/* zName:     */ "vdbe_listing",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_VdbeListing },
- {/* zName:     */ "vdbe_trace",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_VdbeTrace },
-#endif
-#endif
-#if !defined(SQLITE_OMIT_WAL)
- {/* zName:     */ "wal_autocheckpoint",
-  /* ePragTyp:  */ PragTyp_WAL_AUTOCHECKPOINT,
-  /* ePragFlg:  */ 0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
- {/* zName:     */ "wal_checkpoint",
-  /* ePragTyp:  */ PragTyp_WAL_CHECKPOINT,
-  /* ePragFlg:  */ PragFlg_NeedSchema,
-  /* ColNames:  */ 50, 3,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
- {/* zName:     */ "writable_schema",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_WriteSchema|SQLITE_NoSchemaError },
-#endif
-};
-/* Number of pragmas: 68 on by default, 78 total. */
@@ -1057,7 +1057,7 @@ void sqlite3_str_appendall(sqlite3_str *p, const char *z){
 static SQLITE_NOINLINE char *strAccumFinishRealloc(StrAccum *p){
  char *zText;
  assert( p->mxAlloc>0 && !isMalloced(p) );
-  zText = sqlite3DbMallocRaw(p->db, p->nChar+1 );
+  zText = sqlite3DbMallocRaw(p->db, 1+(u64)p->nChar );
  if( zText ){
    memcpy(zText, p->zText, p->nChar+1);
    p->printfFlags |= SQLITE_PRINTF_MALLOCED;
@@ -294,7 +294,6 @@ static int lookupName(
  Schema *pSchema = 0;              /* Schema of the expression */
  int eNewExprOp = TK_COLUMN;       /* New value for pExpr->op on success */
  Table *pTab = 0;                  /* Table holding the row */
-  Column *pCol;                     /* A column of pTab */
  ExprList *pFJMatch = 0;           /* Matches for FULL JOIN .. USING */
  const char *zCol = pRight->u.zToken;

@@ -345,7 +344,6 @@ static int lookupName(

    if( pSrcList ){
      for(i=0, pItem=pSrcList->a; i<pSrcList->nSrc; i++, pItem++){
-        u8 hCol;
        pTab = pItem->pSTab;
        assert( pTab!=0 && pTab->zName!=0 );
        assert( pTab->nCol>0 || pParse->nErr );
@@ -433,43 +431,38 @@ static int lookupName(
            sqlite3RenameTokenRemap(pParse, 0, (void*)&pExpr->y.pTab);
          }
        }
-        hCol = sqlite3StrIHash(zCol);
-        for(j=0, pCol=pTab->aCol; j<pTab->nCol; j++, pCol++){
-          if( pCol->hName==hCol
-           && sqlite3StrICmp(pCol->zCnName, zCol)==0
-          ){
-            if( cnt>0 ){
-              if( pItem->fg.isUsing==0
-               || sqlite3IdListIndex(pItem->u3.pUsing, zCol)<0
-              ){
-                /* Two or more tables have the same column name which is
-                ** not joined by USING.  This is an error.  Signal as much
-                ** by clearing pFJMatch and letting cnt go above 1. */
-                sqlite3ExprListDelete(db, pFJMatch);
-                pFJMatch = 0;
-              }else
-              if( (pItem->fg.jointype & JT_RIGHT)==0 ){
-                /* An INNER or LEFT JOIN.  Use the left-most table */
-                continue;
-              }else
-              if( (pItem->fg.jointype & JT_LEFT)==0 ){
-                /* A RIGHT JOIN.  Use the right-most table */
-                cnt = 0;
-                sqlite3ExprListDelete(db, pFJMatch);
-                pFJMatch = 0;
-              }else{
-                /* For a FULL JOIN, we must construct a coalesce() func */
-                extendFJMatch(pParse, &pFJMatch, pMatch, pExpr->iColumn);
-              }
+        j = sqlite3ColumnIndex(pTab, zCol);
+        if( j>=0 ){
+          if( cnt>0 ){
+            if( pItem->fg.isUsing==0
+             || sqlite3IdListIndex(pItem->u3.pUsing, zCol)<0
+            ){
+              /* Two or more tables have the same column name which is
+              ** not joined by USING.  This is an error.  Signal as much
+              ** by clearing pFJMatch and letting cnt go above 1. */
+              sqlite3ExprListDelete(db, pFJMatch);
+              pFJMatch = 0;
+            }else
+            if( (pItem->fg.jointype & JT_RIGHT)==0 ){
+              /* An INNER or LEFT JOIN.  Use the left-most table */
+              continue;
+            }else
+            if( (pItem->fg.jointype & JT_LEFT)==0 ){
+              /* A RIGHT JOIN.  Use the right-most table */
+              cnt = 0;
+              sqlite3ExprListDelete(db, pFJMatch);
+              pFJMatch = 0;
+            }else{
+              /* For a FULL JOIN, we must construct a coalesce() func */
+              extendFJMatch(pParse, &pFJMatch, pMatch, pExpr->iColumn);
            }
-            cnt++;
-            pMatch = pItem;
-            /* Substitute the rowid (column -1) for the INTEGER PRIMARY KEY */
-            pExpr->iColumn = j==pTab->iPKey ? -1 : (i16)j;
-            if( pItem->fg.isNestedFrom ){
-              sqlite3SrcItemColumnUsed(pItem, j);
-            }
-            break;
+          }
+          cnt++;
+          pMatch = pItem;
+          /* Substitute the rowid (column -1) for the INTEGER PRIMARY KEY */
+          pExpr->iColumn = j==pTab->iPKey ? -1 : (i16)j;
+          if( pItem->fg.isNestedFrom ){
+            sqlite3SrcItemColumnUsed(pItem, j);
          }
        }
        if( 0==cnt && VisibleRowid(pTab) ){
@@ -559,23 +552,18 @@ static int lookupName(

      if( pTab ){
        int iCol;
-        u8 hCol = sqlite3StrIHash(zCol);
        pSchema = pTab->pSchema;
        cntTab++;
-        for(iCol=0, pCol=pTab->aCol; iCol<pTab->nCol; iCol++, pCol++){
-          if( pCol->hName==hCol
-           && sqlite3StrICmp(pCol->zCnName, zCol)==0
-          ){
-            if( iCol==pTab->iPKey ){
-              iCol = -1;
-            }
-            break;
+        iCol = sqlite3ColumnIndex(pTab, zCol);
+        if( iCol>=0 ){
+          if( pTab->iPKey==iCol ) iCol = -1;
+        }else{
+          if( sqlite3IsRowid(zCol) && VisibleRowid(pTab) ){
+            iCol = -1;
+          }else{
+            iCol = pTab->nCol;
          }
        }
-        if( iCol>=pTab->nCol && sqlite3IsRowid(zCol) && VisibleRowid(pTab) ){
-          /* IMP: R-51414-32910 */
-          iCol = -1;
-        }
        if( iCol<pTab->nCol ){
          cnt++;
          pMatch = 0;
@@ -319,10 +319,33 @@ int sqlite3JoinType(Parse *pParse, Token *pA, Token *pB, Token *pC){
 */
 int sqlite3ColumnIndex(Table *pTab, const char *zCol){
  int i;
-  u8 h = sqlite3StrIHash(zCol);
-  Column *pCol;
-  for(pCol=pTab->aCol, i=0; i<pTab->nCol; pCol++, i++){
-    if( pCol->hName==h && sqlite3StrICmp(pCol->zCnName, zCol)==0 ) return i;
+  u8 h;
+  const Column *aCol;
+  int nCol;
+
+  h = sqlite3StrIHash(zCol);
+  aCol = pTab->aCol;
+  nCol = pTab->nCol;
+
+  /* See if the aHx gives us a lucky match */
+  i = pTab->aHx[h % sizeof(pTab->aHx)];
+  assert( i<nCol );
+  if( aCol[i].hName==h
+   && sqlite3StrICmp(aCol[i].zCnName, zCol)==0
+  ){
+    return i;
+  }
+
+  /* No lucky match from the hash table.  Do a full search. */
+  i = 0;
+  while( 1 /*exit-by-break*/ ){
+    if( aCol[i].hName==h
+     && sqlite3StrICmp(aCol[i].zCnName, zCol)==0
+    ){
+      return i;
+    }
+    i++;
+    if( i>=nCol ) break;
  }
  return -1;
 }
@@ -3313,6 +3313,14 @@ static int display_stats(
     "%lld (max %lld) bytes", SQLITE_STATUS_MEMORY_USED, bReset);
  displayStatLine(out, "Number of Outstanding Allocations:",
     "%lld (max %lld)", SQLITE_STATUS_MALLOC_COUNT, bReset);
+#ifdef SQLITE_MEM5_FAILOVER
+  displayStatLine(out, "Failover Memory Used:",
+     "%lld (max %lld) bytes", SQLITE_STATUS_FAILOVER_USED, bReset);
+  displayStatLine(out, "Failover Allocations:",
+     "%lld (max %lld)", SQLITE_STATUS_FAILOVER_COUNT, bReset);
+  displayStatLine(out, "Largest Failover Allocation:",
+     "%lld", SQLITE_STATUS_FAILOVER_SIZE, bReset);
+#endif
  if( pArg->shellFlgs & SHFLG_Pagecache ){
    displayStatLine(out, "Number of Pcache Pages Used:",
       "%lld (max %lld) pages", SQLITE_STATUS_PAGECACHE_USED, bReset);
@@ -8725,6 +8733,9 @@ static int do_meta_command(char *zLine, ShellState *p){
      const char *zName;
      int op;
    } aDbConfig[] = {
+        { "attach_create",      SQLITE_DBCONFIG_ENABLE_ATTACH_CREATE  },
+        { "attach_write",       SQLITE_DBCONFIG_ENABLE_ATTACH_WRITE   },
+        { "comments",           SQLITE_DBCONFIG_ENABLE_COMMENTS       },
        { "defensive",          SQLITE_DBCONFIG_DEFENSIVE             },
        { "dqs_ddl",            SQLITE_DBCONFIG_DQS_DDL               },
        { "dqs_dml",            SQLITE_DBCONFIG_DQS_DML               },
@@ -11475,6 +11486,7 @@ static int do_meta_command(char *zLine, ShellState *p){
            { 0x04000000, 1, "NullUnusedCols" },
            { 0x08000000, 1, "OnePass" },
            { 0x10000000, 1, "OrderBySubq" },
+            { 0x20000000, 1, "StarQuery" },
            { 0xffffffff, 0, "All" },
          };
          unsigned int curOpt;
@@ -1989,13 +1989,16 @@ struct sqlite3_mem_methods {
 **
 ** [[SQLITE_CONFIG_LOOKASIDE]] <dt>SQLITE_CONFIG_LOOKASIDE</dt>
 ** <dd> ^(The SQLITE_CONFIG_LOOKASIDE option takes two arguments that determine
-** the default size of lookaside memory on each [database connection].
+** the default size of [lookaside memory] on each [database connection].
 ** The first argument is the
-** size of each lookaside buffer slot and the second is the number of
-** slots allocated to each database connection.)^  ^(SQLITE_CONFIG_LOOKASIDE
-** sets the <i>default</i> lookaside size. The [SQLITE_DBCONFIG_LOOKASIDE]
-** option to [sqlite3_db_config()] can be used to change the lookaside
-** configuration on individual connections.)^ </dd>
+** size of each lookaside buffer slot ("sz") and the second is the number of
+** slots allocated to each database connection ("cnt").)^
+** ^(SQLITE_CONFIG_LOOKASIDE sets the <i>default</i> lookaside size.
+** The [SQLITE_DBCONFIG_LOOKASIDE] option to [sqlite3_db_config()] can
+** be used to change the lookaside configuration on individual connections.)^
+** The [-DSQLITE_DEFAULT_LOOKASIDE] option can be used to change the
+** default lookaside configuration at compile-time.
+** </dd>
 **
 ** [[SQLITE_CONFIG_PCACHE2]] <dt>SQLITE_CONFIG_PCACHE2</dt>
 ** <dd> ^(The SQLITE_CONFIG_PCACHE2 option takes a single argument which is
@@ -2211,7 +2214,15 @@ struct sqlite3_mem_methods {
 ** CAPI3REF: Database Connection Configuration Options
 **
 ** These constants are the available integer configuration options that
-** can be passed as the second argument to the [sqlite3_db_config()] interface.
+** can be passed as the second parameter to the [sqlite3_db_config()] interface.
+**
+** The [sqlite3_db_config()] interface is a var-args functions.  It takes a
+** variable number of parameters, though always at least two.  The number of
+** parameters passed into sqlite3_db_config() depends on which of these
+** constants is given as the second parameter.  This documentation page
+** refers to parameters beyond the second as "arguments".  Thus, when this
+** page says "the N-th argument" it means "the N-th parameter past the
+** configuration option" or "the (N+2)-th parameter to sqlite3_db_config()".
 **
 ** New configuration options may be added in future releases of SQLite.
 ** Existing configuration options might be discontinued.  Applications
@@ -2223,31 +2234,57 @@ struct sqlite3_mem_methods {
 ** <dl>
 ** [[SQLITE_DBCONFIG_LOOKASIDE]]
 ** <dt>SQLITE_DBCONFIG_LOOKASIDE</dt>
-** <dd> ^This option takes three additional arguments that determine the
-** [lookaside memory allocator] configuration for the [database connection].
-** ^The first argument (the third parameter to [sqlite3_db_config()] is a
+** <dd> The SQLITE_DBCONFIG_LOOKASIDE option is used to adjust the 
+** configuration of the [lookaside memory allocator] within a database
+** connection.
+** The arguments to the SQLITE_DBCONFIG_LOOKASIDE option are <i>not</i>
+** in the [DBCONFIG arguments|usual format].
+** The SQLITE_DBCONFIG_LOOKASIDE option takes three arguments, not two,
+** so that a call to [sqlite3_db_config()] that uses SQLITE_DBCONFIG_LOOKASIDE
+** should have a total of five parameters.
+** <ol>
+** <li><p>The first argument ("buf") is a
 ** pointer to a memory buffer to use for lookaside memory.
-** ^The first argument after the SQLITE_DBCONFIG_LOOKASIDE verb
-** may be NULL in which case SQLite will allocate the
-** lookaside buffer itself using [sqlite3_malloc()]. ^The second argument is the
-** size of each lookaside buffer slot.  ^The third argument is the number of
-** slots.  The size of the buffer in the first argument must be greater than
-** or equal to the product of the second and third arguments.  The buffer
-** must be aligned to an 8-byte boundary.  ^If the second argument to
-** SQLITE_DBCONFIG_LOOKASIDE is not a multiple of 8, it is internally
-** rounded down to the next smaller multiple of 8.  ^(The lookaside memory
+** The first argument may be NULL in which case SQLite will allocate the
+** lookaside buffer itself using [sqlite3_malloc()].
+** <li><P>The second argument ("sz") is the
+** size of each lookaside buffer slot.  Lookaside is disabled if "sz"
+** is less than 8.  The "sz" argument should be a multiple of 8 less than
+** 65536.  If "sz" does not meet this constraint, it is reduced in size until
+** it does.
+** <li><p>The third argument ("cnt") is the number of slots. Lookaside is disabled
+** if "cnt"is less than 1.  The "cnt" value will be reduced, if necessary, so
+** that the product of "sz" and "cnt" does not exceed 2,147,418,112.  The "cnt"
+** parameter is usually chosen so that the product of "sz" and "cnt" is less
+** than 1,000,000.
+** </ol>
+** <p>If the "buf" argument is not NULL, then it must
+** point to a memory buffer with a size that is greater than
+** or equal to the product of "sz" and "cnt".
+** The buffer must be aligned to an 8-byte boundary.
+** The lookaside memory
 ** configuration for a database connection can only be changed when that
 ** connection is not currently using lookaside memory, or in other words
-** when the "current value" returned by
-** [sqlite3_db_status](D,[SQLITE_DBSTATUS_LOOKASIDE_USED],...) is zero.
+** when the value returned by [SQLITE_DBSTATUS_LOOKASIDE_USED] is zero.
 ** Any attempt to change the lookaside memory configuration when lookaside
 ** memory is in use leaves the configuration unchanged and returns
-** [SQLITE_BUSY].)^</dd>
+** [SQLITE_BUSY].
+** If the "buf" argument is NULL and an attempt
+** to allocate memory based on "sz" and "cnt" fails, then
+** lookaside is silently disabled.
+** <p>
+** The [SQLITE_CONFIG_LOOKASIDE] configuration option can be used to set the
+** default lookaside configuration at initialization.  The
+** [-DSQLITE_DEFAULT_LOOKASIDE] option can be used to set the default lookaside
+** configuration at compile-time.  Typical values for lookaside are 1200 for
+** "sz" and 40 to 100 for "cnt".
+** </dd>
 **
 ** [[SQLITE_DBCONFIG_ENABLE_FKEY]]
 ** <dt>SQLITE_DBCONFIG_ENABLE_FKEY</dt>
 ** <dd> ^This option is used to enable or disable the enforcement of
-** [foreign key constraints].  There should be two additional arguments.
+** [foreign key constraints].  This is the same setting that is
+** enabled or disabled by the [PRAGMA foreign_keys] statement.
 ** The first argument is an integer which is 0 to disable FK enforcement,
 ** positive to enable FK enforcement or negative to leave FK enforcement
 ** unchanged.  The second parameter is a pointer to an integer into which
@@ -2269,13 +2306,13 @@ struct sqlite3_mem_methods {
 ** <p>Originally this option disabled all triggers.  ^(However, since
 ** SQLite version 3.35.0, TEMP triggers are still allowed even if
 ** this option is off.  So, in other words, this option now only disables
-** triggers in the main database schema or in the schemas of ATTACH-ed
+** triggers in the main database schema or in the schemas of [ATTACH]-ed
 ** databases.)^ </dd>
 **
 ** [[SQLITE_DBCONFIG_ENABLE_VIEW]]
 ** <dt>SQLITE_DBCONFIG_ENABLE_VIEW</dt>
 ** <dd> ^This option is used to enable or disable [CREATE VIEW | views].
-** There should be two additional arguments.
+** There must be two additional arguments.
 ** The first argument is an integer which is 0 to disable views,
 ** positive to enable views or negative to leave the setting unchanged.
 ** The second parameter is a pointer to an integer into which
@@ -2294,7 +2331,7 @@ struct sqlite3_mem_methods {
 ** <dd> ^This option is used to enable or disable the
 ** [fts3_tokenizer()] function which is part of the
 ** [FTS3] full-text search engine extension.
-** There should be two additional arguments.
+** There must be two additional arguments.
 ** The first argument is an integer which is 0 to disable fts3_tokenizer() or
 ** positive to enable fts3_tokenizer() or negative to leave the setting
 ** unchanged.
@@ -2309,7 +2346,7 @@ struct sqlite3_mem_methods {
 ** interface independently of the [load_extension()] SQL function.
 ** The [sqlite3_enable_load_extension()] API enables or disables both the
 ** C-API [sqlite3_load_extension()] and the SQL function [load_extension()].
-** There should be two additional arguments.
+** There must be two additional arguments.
 ** When the first argument to this interface is 1, then only the C-API is
 ** enabled and the SQL function remains disabled.  If the first argument to
 ** this interface is 0, then both the C-API and the SQL function are disabled.
@@ -2323,23 +2360,30 @@ struct sqlite3_mem_methods {
 **
 ** [[SQLITE_DBCONFIG_MAINDBNAME]] <dt>SQLITE_DBCONFIG_MAINDBNAME</dt>
 ** <dd> ^This option is used to change the name of the "main" database
-** schema.  ^The sole argument is a pointer to a constant UTF8 string
-** which will become the new schema name in place of "main".  ^SQLite
-** does not make a copy of the new main schema name string, so the application
-** must ensure that the argument passed into this DBCONFIG option is unchanged
-** until after the database connection closes.
+** schema.  This option does not follow the
+** [DBCONFIG arguments|usual SQLITE_DBCONFIG argument format].
+** This option takes exactly one additional argument so that the 
+** [sqlite3_db_config()] call has a total of three parameters.  The
+** extra argument must be a pointer to a constant UTF8 string which
+** will become the new schema name in place of "main".  ^SQLite does
+** not make a copy of the new main schema name string, so the application
+** must ensure that the argument passed into SQLITE_DBCONFIG MAINDBNAME
+** is unchanged until after the database connection closes.
 ** </dd>
 **
 ** [[SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE]]
 ** <dt>SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE</dt>
-** <dd> Usually, when a database in wal mode is closed or detached from a
-** database handle, SQLite checks if this will mean that there are now no
-** connections at all to the database. If so, it performs a checkpoint
-** operation before closing the connection. This option may be used to
-** override this behavior. The first parameter passed to this operation
-** is an integer - positive to disable checkpoints-on-close, or zero (the
-** default) to enable them, and negative to leave the setting unchanged.
-** The second parameter is a pointer to an integer
+** <dd> Usually, when a database in [WAL mode] is closed or detached from a
+** database handle, SQLite checks if if there are other connections to the
+** same database, and if there are no other database connection (if the
+** connection being closed is the last open connection to the database),
+** then SQLite performs a [checkpoint] before closing the connection and
+** deletes the WAL file.  The SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE option can
+** be used to override that behavior. The first argument passed to this
+** operation (the third parameter to [sqlite3_db_config()]) is an integer
+** which is positive to disable checkpoints-on-close, or zero (the default)
+** to enable them, and negative to leave the setting unchanged.
+** The second argument (the fourth parameter) is a pointer to an integer
 ** into which is written 0 or 1 to indicate whether checkpoints-on-close
 ** have been disabled - 0 if they are not disabled, 1 if they are.
 ** </dd>
@@ -2500,7 +2544,7 @@ struct sqlite3_mem_methods {
 ** statistics. For statistics to be collected, the flag must be set on
 ** the database handle both when the SQL statement is prepared and when it
 ** is stepped. The flag is set (collection of statistics is enabled)
-** by default.  This option takes two arguments: an integer and a pointer to
+** by default. <p>This option takes two arguments: an integer and a pointer to
 ** an integer..  The first argument is 1, 0, or -1 to enable, disable, or
 ** leave unchanged the statement scanstatus option.  If the second argument
 ** is not NULL, then the value of the statement scanstatus setting after
@@ -2514,7 +2558,7 @@ struct sqlite3_mem_methods {
 ** in which tables and indexes are scanned so that the scans start at the end
 ** and work toward the beginning rather than starting at the beginning and
 ** working toward the end. Setting SQLITE_DBCONFIG_REVERSE_SCANORDER is the
-** same as setting [PRAGMA reverse_unordered_selects].  This option takes
+** same as setting [PRAGMA reverse_unordered_selects]. <p>This option takes
 ** two arguments which are an integer and a pointer to an integer.  The first
 ** argument is 1, 0, or -1 to enable, disable, or leave unchanged the
 ** reverse scan order flag, respectively.  If the second argument is not NULL,
@@ -2523,7 +2567,76 @@ struct sqlite3_mem_methods {
 ** first argument.
 ** </dd>
 **
+** [[SQLITE_DBCONFIG_ENABLE_ATTACH_CREATE]]
+** <dt>SQLITE_DBCONFIG_ENABLE_ATTACH_CREATE</dt>
+** <dd>The SQLITE_DBCONFIG_ENABLE_ATTACH_CREATE option enables or disables
+** the ability of the [ATTACH DATABASE] SQL command to create a new database
+** file if the database filed named in the ATTACH command does not already
+** exist.  This ability of ATTACH to create a new database is enabled by
+** default.  Applications can disable or reenable the ability for ATTACH to
+** create new database files using this DBCONFIG option.<p>
+** This option takes two arguments which are an integer and a pointer
+** to an integer.  The first argument is 1, 0, or -1 to enable, disable, or
+** leave unchanged the attach-create flag, respectively.  If the second
+** argument is not NULL, then 0 or 1 is written into the integer that the
+** second argument points to depending on if the attach-create flag is set
+** after processing the first argument. 
+** </dd>
+**
+** [[SQLITE_DBCONFIG_ENABLE_ATTACH_WRITE]]
+** <dt>SQLITE_DBCONFIG_ENABLE_ATTACH_WRITE</dt>
+** <dd>The SQLITE_DBCONFIG_ENABLE_ATTACH_WRITE option enables or disables the
+** ability of the [ATTACH DATABASE] SQL command to open a database for writing.
+** This capability is enabled by default.  Applications can disable or
+** reenable this capability using the current DBCONFIG option.  If the
+** the this capability is disabled, the [ATTACH] command will still work,
+** but the database will be opened read-only.  If this option is disabled,
+** then the ability to create a new database using [ATTACH] is also disabled,
+** regardless of the value of the [SQLITE_DBCONFIG_ENABLE_ATTACH_CREATE]
+** option.<p>
+** This option takes two arguments which are an integer and a pointer
+** to an integer.  The first argument is 1, 0, or -1 to enable, disable, or
+** leave unchanged the ability to ATTACH another database for writing,
+** respectively.  If the second argument is not NULL, then 0 or 1 is written
+** into the integer to which the second argument points, depending on whether
+** the ability to ATTACH a read/write database is enabled or disabled
+** after processing the first argument.
+** </dd>
+**
+** [[SQLITE_DBCONFIG_ENABLE_COMMENTS]]
+** <dt>SQLITE_DBCONFIG_ENABLE_COMMENTS</dt>
+** <dd>The SQLITE_DBCONFIG_ENABLE_COMMENTS option enables or disables the
+** ability to include comments in SQL text.  Comments are enabled by default.
+** An application can disable or reenable comments in SQL text using this
+** DBCONFIG option.<p>
+** This option takes two arguments which are an integer and a pointer
+** to an integer.  The first argument is 1, 0, or -1 to enable, disable, or
+** leave unchanged the ability to use comments in SQL text,
+** respectively.  If the second argument is not NULL, then 0 or 1 is written
+** into the integer that the second argument points to depending on if 
+** comments are allowed in SQL text after processing the first argument.
+** </dd>
+**
 ** </dl>
+**
+** [[DBCONFIG arguments]] <h3>Arguments To SQLITE_DBCONFIG Options</h3>
+**
+** <p>Most of the SQLITE_DBCONFIG options take two arguments, so that the
+** overall call to [sqlite3_db_config()] has a total of four parameters.
+** The first argument (the third parameter to sqlite3_db_config()) is a integer.
+** The second argument is a pointer to an integer.  If the first argument is 1,
+** then the option becomes enabled.  If the first integer argument is 0, then the
+** option is disabled.  If the first argument is -1, then the option setting
+** is unchanged.  The second argument, the pointer to an integer, may be NULL.
+** If the second argument is not NULL, then a value of 0 or 1 is written into
+** the integer to which the second argument points, depending on whether the
+** setting is disabled or enabled after applying any changes specified by
+** the first argument.
+**
+** <p>While most SQLITE_DBCONFIG options use the argument format
+** described in the previous paragraph, the [SQLITE_DBCONFIG_MAINDBNAME]
+** and [SQLITE_DBCONFIG_LOOKASIDE] options are different.  See the
+** documentation of those exceptional options for details.
 */
 #define SQLITE_DBCONFIG_MAINDBNAME            1000 /* const char* */
 #define SQLITE_DBCONFIG_LOOKASIDE             1001 /* void* int int */
@@ -2545,7 +2658,10 @@ struct sqlite3_mem_methods {
 #define SQLITE_DBCONFIG_TRUSTED_SCHEMA        1017 /* int int* */
 #define SQLITE_DBCONFIG_STMT_SCANSTATUS       1018 /* int int* */
 #define SQLITE_DBCONFIG_REVERSE_SCANORDER     1019 /* int int* */
-#define SQLITE_DBCONFIG_MAX                   1019 /* Largest DBCONFIG */
+#define SQLITE_DBCONFIG_ENABLE_ATTACH_CREATE  1020 /* int int* */
+#define SQLITE_DBCONFIG_ENABLE_ATTACH_WRITE   1021 /* int int* */
+#define SQLITE_DBCONFIG_ENABLE_COMMENTS       1022 /* int int* */
+#define SQLITE_DBCONFIG_MAX                   1022 /* Largest DBCONFIG */

 /*
 ** CAPI3REF: Enable Or Disable Extended Result Codes
@@ -8682,6 +8798,31 @@ int sqlite3_status64(
 ** <dd>The *pHighwater parameter records the deepest parser stack.
 ** The *pCurrent value is undefined.  The *pHighwater value is only
 ** meaningful if SQLite is compiled with [YYTRACKMAXSTACKDEPTH].</dd>)^
+**
+** [[SQLITE_STATUS_FAILOVER_COUNT]] <dt>SQLITE_STATUS_FAILOVER_COUNT</dt>
+** <dd>
+** If [memsys5] is enabled and SQLite is compiled with extra option
+** -DSQLITE_MEM5_FAILOVER, then memsys5 will fail over to the system
+** memory allocator if it is unable to complete an allocation.  This
+** status value reports the number of times that happened.
+**
+** [[SQLITE_STATUS_FAILOVER_USED]] <dt>SQLITE_STATUS_FAILOVER_USED</dt>
+** <dd>
+** If [memsys5] is enabled and SQLite is compiled with extra option
+** -DSQLITE_MEM5_FAILOVER, then memsys5 will fail over to the system
+** memory allocator if it is unable to complete an allocation.  This
+** status value reports the number of bytes currently allocated from
+** the heap due to memsys5 overflow.
+** </dd>
+**
+** [[SQLITE_STATUS_FAILOVER_SIZE]] <dt>SQLITE_STATUS_FAILOVER_SIZE</dt>
+** <dd>
+** If [memsys5] is enabled and SQLite is compiled with extra option
+** -DSQLITE_MEM5_FAILOVER, then memsys5 will fail over to the system
+** memory allocator if it is unable to complete an allocation.  The
+** highwater mark for this status value is the maximum size of any
+** memory allocation that was allocated from the system heap in this way.
+** </dd>
 ** </dl>
 **
 ** New status parameters may be added from time to time.
@@ -8690,11 +8831,14 @@ int sqlite3_status64(
 #define SQLITE_STATUS_PAGECACHE_USED       1
 #define SQLITE_STATUS_PAGECACHE_OVERFLOW   2
 #define SQLITE_STATUS_SCRATCH_USED         3  /* NOT USED */
+#define SQLITE_STATUS_FAILOVER_COUNT       3
 #define SQLITE_STATUS_SCRATCH_OVERFLOW     4  /* NOT USED */
+#define SQLITE_STATUS_FAILOVER_USED        4
 #define SQLITE_STATUS_MALLOC_SIZE          5
 #define SQLITE_STATUS_PARSER_STACK         6
 #define SQLITE_STATUS_PAGECACHE_SIZE       7
 #define SQLITE_STATUS_SCRATCH_SIZE         8  /* NOT USED */
+#define SQLITE_STATUS_FAILOVER_SIZE        8
 #define SQLITE_STATUS_MALLOC_COUNT         9

 /*
@@ -10748,8 +10892,9 @@ SQLITE_EXPERIMENTAL int sqlite3_snapshot_recover(sqlite3 *db, const char *zDb);
 /*
 ** CAPI3REF: Serialize a database
 **
-** The sqlite3_serialize(D,S,P,F) interface returns a pointer to memory
-** that is a serialization of the S database on [database connection] D.
+** The sqlite3_serialize(D,S,P,F) interface returns a pointer to
+** memory that is a serialization of the S database on
+** [database connection] D.  If S is a NULL pointer, the main database is used.
 ** If P is not a NULL pointer, then the size of the database in bytes
 ** is written into *P.
 **
@@ -843,6 +843,11 @@ typedef INT16_TYPE i16;            /* 2-byte signed integer */
 typedef UINT8_TYPE u8;             /* 1-byte unsigned integer */
 typedef INT8_TYPE i8;              /* 1-byte signed integer */

+/* A bitfield type for use inside of structures.  Always follow with :N where
+** N is the number of bits.
+*/
+typedef unsigned bft;  /* Bit Field Type */
+
 /*
 ** SQLITE_MAX_U32 is a u64 constant that is the maximum u64 value
 ** that can be stored in a u32 without loss of data.  The value
@@ -881,6 +886,8 @@ typedef u64 tRowcnt;
 **    0.5 -> -10           0.1 -> -33        0.0625 -> -40
 */
 typedef INT16_TYPE LogEst;
+#define LOGEST_MIN (-32768)
+#define LOGEST_MAX (32767)

 /*
 ** Set the SQLITE_PTRSIZE macro to the number of bytes in a pointer
@@ -1009,6 +1016,14 @@ typedef INT16_TYPE LogEst;
 #define LARGEST_UINT64 (0xffffffff|(((u64)0xffffffff)<<32))
 #define SMALLEST_INT64 (((i64)-1) - LARGEST_INT64)

+/*
+** Macro SMXV(n) return the maximum value that can be held in variable n,
+** assuming n is a signed integer type.  UMXV(n) is similar for unsigned
+** integer types.
+*/
+#define SMXV(n) ((((i64)1)<<(sizeof(n)-1))-1)
+#define UMXV(n) ((((i64)1)<<(sizeof(n)))-1)
+
 /*
 ** Round up a number to the next larger multiple of 8.  This is used
 ** to force 8-byte alignment on 64-bit architectures.
@@ -1151,7 +1166,7 @@ extern u32 sqlite3WhereTrace;
 ** 0xFFFF----   Low-level debug messages
 **
 ** 0x00000001   Code generation
-** 0x00000002   Solver
+** 0x00000002   Solver (Use 0x40000 for less detail)
 ** 0x00000004   Solver costs
 ** 0x00000008   WhereLoop inserts
 **
@@ -1170,6 +1185,8 @@ extern u32 sqlite3WhereTrace;
 **
 ** 0x00010000   Show more detail when printing WHERE terms
 ** 0x00020000   Show WHERE terms returned from whereScanNext()
+** 0x00040000   Solver overview messages
+** 0x00080000   Star-query heuristic
 */


@@ -1830,6 +1847,9 @@ struct sqlite3 {
 #define SQLITE_CorruptRdOnly  HI(0x00002) /* Prohibit writes due to error */
 #define SQLITE_ReadUncommit   HI(0x00004) /* READ UNCOMMITTED in shared-cache */
 #define SQLITE_FkNoAction     HI(0x00008) /* Treat all FK as NO ACTION */
+#define SQLITE_AttachCreate   HI(0x00010) /* ATTACH allowed to create new dbs */
+#define SQLITE_AttachWrite    HI(0x00020) /* ATTACH allowed to open for write */
+#define SQLITE_Comments       HI(0x00040) /* Enable SQL comments */

 /* Flags used only if debugging */
 #ifdef SQLITE_DEBUG
@@ -1889,6 +1909,7 @@ struct sqlite3 {
 #define SQLITE_NullUnusedCols 0x04000000 /* NULL unused columns in subqueries */
 #define SQLITE_OnePass        0x08000000 /* Single-pass DELETE and UPDATE */
 #define SQLITE_OrderBySubq    0x10000000 /* ORDER BY in subquery helps outer */
+#define SQLITE_StarQuery      0x20000000 /* Heurists for star queries */
 #define SQLITE_AllOpts        0xffffffff /* All optimizations */

 /*
@@ -2418,6 +2439,7 @@ struct Table {
  } u;
  Trigger *pTrigger;   /* List of triggers on this object */
  Schema *pSchema;     /* Schema that contains this table */
+  u8 aHx[16];          /* Column aHt[K%sizeof(aHt)] might have hash K */
 };

 /*
@@ -3218,13 +3240,8 @@ struct ExprList {
 */
 struct IdList {
  int nId;         /* Number of identifiers on the list */
-  u8 eU4;          /* Which element of a.u4 is valid */
  struct IdList_item {
    char *zName;      /* Name of the identifier */
-    union {
-      int idx;          /* Index in some Table.aCol[] of a column named zName */
-      Expr *pExpr;      /* Expr to implement a USING variable -- NOT USED */
-    } u4;
  } a[1];
 };

@@ -3820,25 +3837,32 @@ struct Parse {
  char *zErrMsg;       /* An error message */
  Vdbe *pVdbe;         /* An engine for executing database bytecode */
  int rc;              /* Return code from execution */
-  u8 colNamesSet;      /* TRUE after OP_ColumnName has been issued to pVdbe */
-  u8 checkSchema;      /* Causes schema cookie check after an error */
+  LogEst nQueryLoop;   /* Est number of iterations of a query (10*log2(N)) */
  u8 nested;           /* Number of nested calls to the parser/code generator */
  u8 nTempReg;         /* Number of temporary registers in aTempReg[] */
  u8 isMultiWrite;     /* True if statement may modify/insert multiple rows */
  u8 mayAbort;         /* True if statement may throw an ABORT exception */
  u8 hasCompound;      /* Need to invoke convertCompoundSelectToSubquery() */
-  u8 okConstFactor;    /* OK to factor out constants */
  u8 disableLookaside; /* Number of times lookaside has been disabled */
  u8 prepFlags;        /* SQLITE_PREPARE_* flags */
  u8 withinRJSubrtn;   /* Nesting level for RIGHT JOIN body subroutines */
-  u8 bHasWith;         /* True if statement contains WITH */
  u8 mSubrtnSig;       /* mini Bloom filter on available SubrtnSig.selId */
+  u8 eTriggerOp;       /* TK_UPDATE, TK_INSERT or TK_DELETE */
+  u8 bReturning;       /* Coding a RETURNING trigger */
+  u8 eOrconf;          /* Default ON CONFLICT policy for trigger steps */
+  u8 disableTriggers;  /* True to disable triggers */
 #if defined(SQLITE_DEBUG) || defined(SQLITE_COVERAGE_TEST)
  u8 earlyCleanup;     /* OOM inside sqlite3ParserAddCleanup() */
 #endif
 #ifdef SQLITE_DEBUG
  u8 ifNotExists;      /* Might be true if IF NOT EXISTS.  Assert()s only */
+  u8 isCreate;         /* CREATE TABLE, INDEX, or VIEW (but not TRIGGER)
+                       ** and ALTER TABLE ADD COLUMN. */
 #endif
+  bft colNamesSet :1;   /* TRUE after OP_ColumnName has been issued to pVdbe */
+  bft bHasWith :1;      /* True if statement contains WITH */
+  bft okConstFactor :1; /* OK to factor out constants */
+  bft checkSchema :1;   /* Causes schema cookie check after an error */
  int nRangeReg;       /* Size of the temporary register block */
  int iRangeReg;       /* First register in temporary register block */
  int nErr;            /* Number of errors seen */
@@ -3853,12 +3877,9 @@ struct Parse {
  ExprList *pConstExpr;/* Constant expressions */
  IndexedExpr *pIdxEpr;/* List of expressions used by active indexes */
  IndexedExpr *pIdxPartExpr; /* Exprs constrained by index WHERE clauses */
-  Token constraintName;/* Name of the constraint currently being parsed */
  yDbMask writeMask;   /* Start a write transaction on these databases */
  yDbMask cookieMask;  /* Bitmask of schema verified databases */
-  int regRowid;        /* Register holding rowid of CREATE TABLE entry */
-  int regRoot;         /* Register holding root page number for new objects */
-  int nMaxArg;         /* Max args passed to user function by sub-program */
+  int nMaxArg;         /* Max args to xUpdate and xFilter vtab methods */
  int nSelect;         /* Number of SELECT stmts. Counter for Select.selId */
 #ifndef SQLITE_OMIT_PROGRESS_CALLBACK
  u32 nProgressSteps;  /* xProgress steps taken during sqlite3_prepare() */
@@ -3872,17 +3893,6 @@ struct Parse {
  Table *pTriggerTab;  /* Table triggers are being coded for */
  TriggerPrg *pTriggerPrg;  /* Linked list of coded triggers */
  ParseCleanup *pCleanup;   /* List of cleanup operations to run after parse */
-  union {
-    int addrCrTab;         /* Address of OP_CreateBtree on CREATE TABLE */
-    Returning *pReturning; /* The RETURNING clause */
-  } u1;
-  u32 oldmask;         /* Mask of old.* columns referenced */
-  u32 newmask;         /* Mask of new.* columns referenced */
-  LogEst nQueryLoop;   /* Est number of iterations of a query (10*log2(N)) */
-  u8 eTriggerOp;       /* TK_UPDATE, TK_INSERT or TK_DELETE */
-  u8 bReturning;       /* Coding a RETURNING trigger */
-  u8 eOrconf;          /* Default ON CONFLICT policy for trigger steps */
-  u8 disableTriggers;  /* True to disable triggers */

  /**************************************************************************
  ** Fields above must be initialized to zero.  The fields that follow,
@@ -3894,6 +3904,19 @@ struct Parse {
  int aTempReg[8];        /* Holding area for temporary registers */
  Parse *pOuterParse;     /* Outer Parse object when nested */
  Token sNameToken;       /* Token with unqualified schema object name */
+  u32 oldmask;            /* Mask of old.* columns referenced */
+  u32 newmask;            /* Mask of new.* columns referenced */
+  union {
+    struct {  /* These fields available when isCreate is true */
+      int addrCrTab;        /* Address of OP_CreateBtree on CREATE TABLE */
+      int regRowid;         /* Register holding rowid of CREATE TABLE entry */
+      int regRoot;          /* Register holding root page for new objects */
+      Token constraintName; /* Name of the constraint currently being parsed */
+    } cr;
+    struct {  /* These fields available to all other statements */
+      Returning *pReturning; /* The RETURNING clause */
+    } d;
+  } u1;

  /************************************************************************
  ** Above is constant between recursions.  Below is reset before and after
@@ -3911,9 +3934,7 @@ struct Parse {
  int nVtabLock;            /* Number of virtual tables to lock */
 #endif
  int nHeight;              /* Expression tree height of current sub-select */
-#ifndef SQLITE_OMIT_EXPLAIN
  int addrExplain;          /* Address of current OP_Explain opcode */
-#endif
  VList *pVList;            /* Mapping between variable names and numbers */
  Vdbe *pReprepare;         /* VM being reprepared (sqlite3Reprepare()) */
  const char *zTail;        /* All SQL text past the last semicolon parsed */
@@ -121,6 +121,7 @@ void sqlite3StatusHighwater(int op, int X){
  assert( sqlite3_mutex_held(statMutex[op] ? sqlite3Pcache1Mutex()
                                           : sqlite3MallocMutex()) );
  assert( op==SQLITE_STATUS_MALLOC_SIZE
+          || op==SQLITE_STATUS_FAILOVER_SIZE
          || op==SQLITE_STATUS_PAGECACHE_SIZE
          || op==SQLITE_STATUS_PARSER_STACK );
  if( newValue>wsdStat.mxValue[op] ){
@@ -510,7 +510,7 @@ static int createIncrblobChannel(
 ** or {...} or ; to be seen anywhere.  Most callback scripts consist
 ** of just a single procedure name and they meet this requirement.
 */
-static int safeToUseEvalObjv(Tcl_Interp *interp, Tcl_Obj *pCmd){
+static int safeToUseEvalObjv(Tcl_Obj *pCmd){
  /* We could try to do something with Tcl_Parse().  But we will instead
  ** just do a search for forbidden characters.  If any of the forbidden
  ** characters appear in pCmd, we will report the string as unsafe.
@@ -1964,7 +1964,7 @@ static void DbHookCmd(
  }
  if( pArg ){
    assert( !(*ppHook) );
-    if( Tcl_GetCharLength(pArg)>0 ){
+    if( Tcl_GetString(pArg)[0] ){
      *ppHook = pArg;
      Tcl_IncrRefCount(*ppHook);
    }
@@ -2993,7 +2993,7 @@ deserialize_error:
    }
    pFunc->pScript = pScript;
    Tcl_IncrRefCount(pScript);
-    pFunc->useEvalObjv = safeToUseEvalObjv(interp, pScript);
+    pFunc->useEvalObjv = safeToUseEvalObjv(pScript);
    pFunc->eType = eType;
    rc = sqlite3_create_function(pDb->db, zName, nArg, flags,
        pFunc, tclSqlFunc, 0, 0);
@@ -4021,7 +4021,9 @@ EXTERN int Tclsqlite_Unload(Tcl_Interp *interp, int flags){ return TCL_OK; }
 EXTERN int Sqlite_SafeInit(Tcl_Interp *interp){ return TCL_ERROR; }
 EXTERN int Sqlite_SafeUnload(Tcl_Interp *interp, int flags){return TCL_ERROR;}

-/* Also variants with a lowercase "s" */
+/* Also variants with a lowercase "s".  I'm told that these are
+** deprecated in Tcl9, but they continue to be included for backwards
+** compatibility. */
 EXTERN int sqlite3_Init(Tcl_Interp *interp){ return Sqlite3_Init(interp);}
 EXTERN int sqlite_Init(Tcl_Interp *interp){ return Sqlite3_Init(interp);}

@@ -288,7 +288,7 @@ int sqlite3GetToken(const unsigned char *z, int *tokenType){
    case CC_MINUS: {
      if( z[1]=='-' ){
        for(i=2; (c=z[i])!=0 && c!='\n'; i++){}
-        *tokenType = TK_SPACE;   /* IMP: R-22934-25134 */
+        *tokenType = TK_COMMENT;
        return i;
      }else if( z[1]=='>' ){
        *tokenType = TK_PTR;
@@ -324,7 +324,7 @@ int sqlite3GetToken(const unsigned char *z, int *tokenType){
      }
      for(i=3, c=z[2]; (c!='*' || z[i]!='/') && (c=z[i])!=0; i++){}
      if( c ) i++;
-      *tokenType = TK_SPACE;   /* IMP: R-22934-25134 */
+      *tokenType = TK_COMMENT;
      return i;
    }
    case CC_PERCENT: {
@@ -653,12 +653,12 @@ int sqlite3RunParser(Parse *pParse, const char *zSql){
    if( tokenType>=TK_WINDOW ){
      assert( tokenType==TK_SPACE || tokenType==TK_OVER || tokenType==TK_FILTER
           || tokenType==TK_ILLEGAL || tokenType==TK_WINDOW 
-           || tokenType==TK_QNUMBER
+           || tokenType==TK_QNUMBER || tokenType==TK_COMMENT
      );
 #else
    if( tokenType>=TK_SPACE ){
      assert( tokenType==TK_SPACE || tokenType==TK_ILLEGAL 
-           || tokenType==TK_QNUMBER 
+           || tokenType==TK_QNUMBER || tokenType==TK_COMMENT
      );
 #endif /* SQLITE_OMIT_WINDOWFUNC */
      if( AtomicLoad(&db->u1.isInterrupted) ){
@@ -692,6 +692,9 @@ int sqlite3RunParser(Parse *pParse, const char *zSql){
        assert( n==6 );
        tokenType = analyzeFilterKeyword((const u8*)&zSql[6], lastTokenParsed);
 #endif /* SQLITE_OMIT_WINDOWFUNC */
+      }else if( tokenType==TK_COMMENT && (db->flags & SQLITE_Comments)!=0 ){
+        zSql += n;
+        continue;
      }else if( tokenType!=TK_QNUMBER ){
        Token x;
        x.z = zSql;
@@ -798,6 +801,7 @@ char *sqlite3Normalize(
    n = sqlite3GetToken((unsigned char*)zSql+i, &tokenType);
    if( NEVER(n<=0) ) break;
    switch( tokenType ){
+      case TK_COMMENT:
      case TK_SPACE: {
        break;
      }
--- a/Show More
+++ b/Show More
@@ -1 +1 @@
 .48.0
 .50.0