Optimizations to ParseFinalize() to make up for the extra cleanup associated

with the allocated parser stack. This branch now runs faster than trunk and is less than 300 bytes larger. FossilOrigin-Name: f7290db63cc2568090c14dffc4ea4eadfacb5b94b50a1852ef6eefd9e2e32533
Omit the "parser stack overflow" error message, since it no longer occurs.
2024-01-27 02:21:25 +00:00 · 2024-01-27 01:35:07 +00:00 · 2024-01-26 20:57:19 +00:00 · 2024-01-26 20:34:48 +00:00 · 2024-01-24 21:08:57 +00:00 · 2024-01-24 19:54:49 +00:00
126 changed files with 3737 additions and 1539 deletions
@@ -447,6 +447,7 @@ TESTSRC += \
  $(TOP)/ext/misc/percentile.c \
  $(TOP)/ext/misc/prefixes.c \
  $(TOP)/ext/misc/qpvtab.c \
+  $(TOP)/ext/misc/randomjson.c \
  $(TOP)/ext/misc/regexp.c \
  $(TOP)/ext/misc/remember.c \
  $(TOP)/ext/misc/series.c \
@@ -600,6 +601,7 @@ SHELL_OPT += -DSQLITE_ENABLE_DBPAGE_VTAB
 SHELL_OPT += -DSQLITE_ENABLE_DBSTAT_VTAB
 SHELL_OPT += -DSQLITE_ENABLE_BYTECODE_VTAB
 SHELL_OPT += -DSQLITE_ENABLE_OFFSET_SQL_FUNC
+SHELL_OPT += -DSQLITE_STRICT_SUBTYPE=1
 FUZZERSHELL_OPT =
 FUZZCHECK_OPT += -I$(TOP)/test
 FUZZCHECK_OPT += -I$(TOP)/ext/recover
@@ -630,7 +632,9 @@ FUZZCHECK_OPT += \
  -DSQLITE_MAX_MMAP_SIZE=0 \
  -DSQLITE_OMIT_LOAD_EXTENSION \
  -DSQLITE_PRINTF_PRECISION_LIMIT=1000 \
-  -DSQLITE_PRIVATE=""
+  -DSQLITE_PRIVATE="" \
+  -DSQLITE_STRICT_SUBTYPE=1 \
+  -DSQLITE_STATIC_RANDOMJSON

 FUZZCHECK_SRC += $(TOP)/test/fuzzcheck.c
 FUZZCHECK_SRC += $(TOP)/test/ossfuzz.c
@@ -638,6 +642,7 @@ FUZZCHECK_SRC += $(TOP)/test/fuzzinvariants.c
 FUZZCHECK_SRC += $(TOP)/ext/recover/dbdata.c
 FUZZCHECK_SRC += $(TOP)/ext/recover/sqlite3recover.c
 FUZZCHECK_SRC += $(TOP)/test/vt02.c
+FUZZCHECK_SRC += $(TOP)/ext/misc/randomjson.c
 DBFUZZ_OPT =
 ST_OPT = -DSQLITE_OS_KV_OPTIONAL

@@ -1291,6 +1296,8 @@ TESTFIXTURE_FLAGS += -DSQLITE_ENABLE_STMTVTAB
 TESTFIXTURE_FLAGS += -DSQLITE_ENABLE_DBPAGE_VTAB
 TESTFIXTURE_FLAGS += -DSQLITE_ENABLE_BYTECODE_VTAB
 TESTFIXTURE_FLAGS += -DSQLITE_CKSUMVFS_STATIC
+TESTFIXTURE_FLAGS += -DSQLITE_STATIC_RANDOMJSON
+TESTFIXTURE_FLAGS += -DSQLITE_STRICT_SUBTYPE=1

 TESTFIXTURE_SRC0 = $(TESTSRC2) libsqlite3.la
 TESTFIXTURE_SRC1 = sqlite3.c
@@ -1584,6 +1584,7 @@ TESTEXT = \
  $(TOP)\ext\misc\percentile.c \
  $(TOP)\ext\misc\prefixes.c \
  $(TOP)\ext\misc\qpvtab.c \
+  $(TOP)\ext\misc\randomjson.c \
  $(TOP)\ext\misc\regexp.c \
  $(TOP)\ext\misc\remember.c \
  $(TOP)\ext\misc\series.c \
@@ -1692,6 +1693,7 @@ SHELL_COMPILE_OPTS = $(SHELL_COMPILE_OPTS) -DSQLITE_ENABLE_EXPLAIN_COMMENTS=1
 SHELL_COMPILE_OPTS = $(SHELL_COMPILE_OPTS) -DSQLITE_ENABLE_OFFSET_SQL_FUNC=1
 SHELL_COMPILE_OPTS = $(SHELL_COMPILE_OPTS) -DSQLITE_ENABLE_UNKNOWN_SQL_FUNCTION=1
 SHELL_COMPILE_OPTS = $(SHELL_COMPILE_OPTS) -DSQLITE_ENABLE_STMT_SCANSTATUS=1
+SHELL_COMPILE_OPTS = $(SHELL_COMPILE_OPTS) -DSQLITE_STRICT_SUBTYPE=1
 !ENDIF

 # <<mark>>
@@ -1728,6 +1730,8 @@ FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_MAX_MMAP_SIZE=0
 FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_OMIT_LOAD_EXTENSION
 FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_PRINTF_PRECISION_LIMIT=1000
 FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_PRIVATE=""
+FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_STRICT_SUBTYPE=1
+FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_STATIC_RANDOMJSON

 FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_MAX_MEMORY=50000000
 FUZZCHECK_OPTS = $(FUZZCHECK_OPTS) -DSQLITE_PRINTF_PRECISION_LIMIT=1000
@@ -1744,6 +1748,7 @@ FUZZCHECK_SRC = $(FUZZCHECK_SRC) $(TOP)\test\fuzzinvariants.c
 FUZZCHECK_SRC = $(FUZZCHECK_SRC) $(TOP)\test\vt02.c
 FUZZCHECK_SRC = $(FUZZCHECK_SRC) $(TOP)\ext\recover\dbdata.c
 FUZZCHECK_SRC = $(FUZZCHECK_SRC) $(TOP)\ext\recover\sqlite3recover.c
+FUZZCHECK_SRC = $(FUZZCHECK_SRC) $(TOP)\ext\misc\randomjson.c

 OSSSHELL_SRC = $(TOP)\test\ossshell.c $(TOP)\test\ossfuzz.c
 DBFUZZ_COMPILE_OPTS = -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION
@@ -1823,8 +1828,8 @@ $(SQLITE3EXE):	shell.c $(SHELL_CORE_DEP) $(LIBRESOBJS) $(SHELL_CORE_SRC) $(SQLIT
 		/link $(SQLITE3EXEPDB) $(LDFLAGS) $(LTLINKOPTS) $(SHELL_LINK_OPTS) $(LTLIBPATHS) $(LIBRESOBJS) $(LIBREADLINE) $(LTLIBS) $(TLIBS)

 # <<mark>>
-sqldiff.exe:	$(TOP)\tool\sqldiff.c $(SQLITE3C) $(SQLITE3H) $(LIBRESOBJS)
-	$(LTLINK) $(NO_WARN) $(TOP)\tool\sqldiff.c $(SQLITE3C) /link $(LDFLAGS) $(LTLINKOPTS) $(LIBRESOBJS)
+sqldiff.exe:	$(TOP)\tool\sqldiff.c $(TOP)\ext\consio\console_io.h $(TOP)\ext\consio\console_io.c $(SQLITE3C) $(SQLITE3H) $(LIBRESOBJS)
+	$(LTLINK) $(NO_WARN) -I$(TOP)\ext\consio $(TOP)\tool\sqldiff.c $(TOP)\ext\consio\console_io.c $(SQLITE3C) /link $(LDFLAGS) $(LTLINKOPTS) $(LIBRESOBJS)

 dbhash.exe:	$(TOP)\tool\dbhash.c $(SQLITE3C) $(SQLITE3H)
 	$(LTLINK) $(NO_WARN) $(TOP)\tool\dbhash.c $(SQLITE3C) /link $(LDFLAGS) $(LTLINKOPTS)
@@ -2433,6 +2438,8 @@ TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_ENABLE_DBPAGE_VTAB=1
 TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_ENABLE_BYTECODE_VTAB=1
 TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_CKSUMVFS_STATIC=1
 TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) $(TEST_CCONV_OPTS)
+TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_STATIC_RANDOMJSON
+TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_STRICT_SUBTYPE=1

 TESTFIXTURE_SRC0 = $(TESTEXT) $(TESTSRC2)
 TESTFIXTURE_SRC1 = $(TESTEXT) $(SQLITE3C)
@@ -2543,7 +2550,7 @@ smoketest:	$(TESTPROGS)
 shelltest: $(TESTPROGS)
 	.\testfixture.exe $(TOP)\test\permutations.test shell

-sqlite3_analyzer.c:	$(SQLITE3C) $(SQLITE3H) $(TOP)\src\tclsqlite.c $(TOP)\tool\spaceanal.tcl $(TOP)\tool\mkccode.tcl $(TOP)\tool\sqlite3_analyzer.c.in $(SQLITE_TCL_DEP)
+sqlite3_analyzer.c:	$(SQLITE3C) $(SQLITE3H) $(TOP)\src\tclsqlite.c $(TOP)\tool\spaceanal.tcl $(TOP)\tool\mkccode.tcl $(TOP)\tool\sqlite3_analyzer.c.in $(TOP)\ext\consio\console_io.h $(TOP)\ext\consio\console_io.c $(SQLITE_TCL_DEP)
 	$(TCLSH_CMD) $(TOP)\tool\mkccode.tcl $(TOP)\tool\sqlite3_analyzer.c.in > $@

 sqlite3_analyzer.exe:	sqlite3_analyzer.c $(LIBRESOBJS)
@@ -1 +1 @@
-3.45.0
+3.46.0
@@ -990,6 +990,7 @@ SHELL_COMPILE_OPTS = $(SHELL_COMPILE_OPTS) -DSQLITE_ENABLE_EXPLAIN_COMMENTS=1
 SHELL_COMPILE_OPTS = $(SHELL_COMPILE_OPTS) -DSQLITE_ENABLE_OFFSET_SQL_FUNC=1
 SHELL_COMPILE_OPTS = $(SHELL_COMPILE_OPTS) -DSQLITE_ENABLE_UNKNOWN_SQL_FUNCTION=1
 SHELL_COMPILE_OPTS = $(SHELL_COMPILE_OPTS) -DSQLITE_ENABLE_STMT_SCANSTATUS=1
+SHELL_COMPILE_OPTS = $(SHELL_COMPILE_OPTS) -DSQLITE_STRICT_SUBTYPE=1
 !ENDIF


@@ -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],[3.45.0])
+AC_INIT([sqlite],[3.46.0])

 #--------------------------------------------------------------------
 # Call TEA_INIT as the first TEA_ macro to set up initial vars.
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for sqlite 3.45.0.
+# Generated by GNU Autoconf 2.69 for sqlite 3.46.0.
 #
 #
 # Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
@@ -726,8 +726,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='sqlite'
 PACKAGE_TARNAME='sqlite'
-PACKAGE_VERSION='3.45.0'
-PACKAGE_STRING='sqlite 3.45.0'
+PACKAGE_VERSION='3.46.0'
+PACKAGE_STRING='sqlite 3.46.0'
 PACKAGE_BUGREPORT=''
 PACKAGE_URL=''

@@ -1472,7 +1472,7 @@ if test "$ac_init_help" = "long"; then
  # Omit some internal or obsolete options to make the list less imposing.
  # This message is too long to be a string in the A/UX 3.1 sh.
  cat <<_ACEOF
-\`configure' configures sqlite 3.45.0 to adapt to many kinds of systems.
+\`configure' configures sqlite 3.46.0 to adapt to many kinds of systems.

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

@@ -1537,7 +1537,7 @@ fi

 if test -n "$ac_init_help"; then
  case $ac_init_help in
-     short | recursive ) echo "Configuration of sqlite 3.45.0:";;
+     short | recursive ) echo "Configuration of sqlite 3.46.0:";;
   esac
  cat <<\_ACEOF

@@ -1668,7 +1668,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
  cat <<\_ACEOF
-sqlite configure 3.45.0
+sqlite configure 3.46.0
 generated by GNU Autoconf 2.69

 Copyright (C) 2012 Free Software Foundation, Inc.
@@ -2087,7 +2087,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.

-It was created by sqlite $as_me 3.45.0, which was
+It was created by sqlite $as_me 3.46.0, which was
 generated by GNU Autoconf 2.69.  Invocation command line was

  $ $0 $@
@@ -12481,7 +12481,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by sqlite $as_me 3.45.0, which was
+This file was extended by sqlite $as_me 3.46.0, which was
 generated by GNU Autoconf 2.69.  Invocation command line was

  CONFIG_FILES    = $CONFIG_FILES
@@ -12547,7 +12547,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-sqlite config.status 3.45.0
+sqlite config.status 3.46.0
 configured by $0, generated by GNU Autoconf 2.69,
  with options \\"\$ac_cs_config\\"

@@ -0,0 +1,290 @@
+# The JSONB Format
+
+This document describes SQLite's JSONB binary encoding of
+JSON.
+
+## 1.0 What Is JSONB?
+
+Beginning with version 3.45.0 (circa 2024-01-01), SQLite supports an
+alternative binary encoding of JSON which we call "JSONB".  JSONB is
+a binary format that stored as a BLOB.
+
+The advantage of JSONB over ordinary text RFC 8259 JSON is that JSONB
+is both slightly smaller (by between 5% and 10% in most cases) and
+can be processed in less than half the number of CPU cycles.  The built-in
+[JSON SQL functions] of SQLite can accept either ordinary text JSON
+or the binary JSONB encoding for any of their JSON inputs.
+
+The "JSONB" name is inspired by [PostgreSQL](https://postgresql.org), but the
+on-disk format for SQLite's JSONB is not the same as PostgreSQL's.
+The two formats have the same name, but they have wildly different internal
+representations and are not in any way binary compatible.
+
+The central idea behind this JSONB specification is that each element
+begins with a header that includes the size and type of that element.
+The header takes the place of punctuation such as double-quotes,
+curly-brackes, square-brackets, commas, and colons.  Since the size
+and type of each element is contained in its header, the element can
+be read faster since it is no longer necessary to carefully scan forward
+looking for the closing delimiter.  The payload of JSONB is the same
+as for corresponding text JSON.  The same payload bytes occur in the
+same order.  The only real difference between JSONB and ordinary text
+JSON is that JSONB includes a binary header on
+each element and omits delimiter and separator punctuation.
+
+### 1.1 Internal Use Only
+
+The details of the JSONB are not intended to be visible to application
+developers.  Application developers should look at JSONB as an opaque BLOB
+used internally by SQLite.  Nevertheless, we want the format to be backwards
+compatible across all future versions of SQLite.  To that end, the format
+is documented by this file in the source tree.  But this file should be
+used only by SQLite core developers, not by developers of applications
+that only use SQLite.
+
+## 2.0 The Purpose Of This Document
+
+JSONB is not intended as an external format to be used by
+applications.  JSONB is designed for internal use by SQLite only.
+Programmers do not need to understand the JSONB format in order to
+use it effectively.
+Applications should access JSONB only through the [JSON SQL functions],
+not by looking at individual bytes of the BLOB.
+
+However, JSONB is intended to be portable and backwards compatible
+for all future versions of SQLite.  In other words, you should not have
+to export and reimport your SQLite database files when you upgrade to
+a newer SQLite version.  For that reason, the JSONB format needs to
+be well-defined.
+
+This document is therefore similar in purpose to the
+[SQLite database file format] document that describes the on-disk
+format of an SQLite database file.  Applications are not expected
+to directly read and write the bits and bytes of SQLite database files.
+The SQLite database file format is carefully documented so that it
+can be stable and enduring.  In the same way, the JSONB representation
+of JSON is documented here so that it too can be stable and enduring,
+not so that applications can read or writes individual bytes.
+
+## 3.0 Encoding
+
+JSONB is a direct translation of the underlying text JSON. The difference
+is that JSONB uses a binary encoding that is faster to parse compared to
+the detailed syntax of text JSON.
+
+Each JSON element is encoded as a header and a payload.  The header
+determines type of element (string, numeric, boolean, null, object, or
+array) and the size of the payload.  The header can be between 1 and
+9 bytes in size.  The payload can be any size from zero bytes up to the
+maximum allowed BLOB size.
+
+### 3.1 Payload Size
+
+The upper four bits of the first byte of the header determine size of the
+header and possibly also the size of the payload.
+If the upper four bits have a value between 0 and 11, then the header is
+exactly one byte in size and the payload size is determined by those
+upper four bits.  If the upper four bits have a value between 12 and 15,
+that means that the total header size is 2, 3, 5, or 9 bytes and the
+payload size is unsigned big-endian integer that is contained in the
+subsequent bytes.  The size integer is the one byte that following the
+initial header byte if the upper four bits
+are 12, two bytes if the upper bits are 13, four bytes if the upper bits
+are 14, and eight bytes if the upper bits are 15.  The current design
+of SQLite does not support BLOB values larger than 2GiB, so the eight-byte
+variant of the payload size integer will never be used by the current code.
+The eight-byte payload size integer is included in the specification
+to allow for future expansion.
+
+The header for an element does *not* need to be in its simplest
+form.  For example, consider the JSON numeric value "`1`".
+That element can be encode in five different ways:
+
+  *  `0x13 0x31`
+  *  `0xc3 0x01 0x31`
+  *  `0xd3 0x00 0x01 0x31`
+  *  `0xe3 0x00 0x00 0x00 0x01 0x31`
+  *  `0xf3 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x01 0x31`
+
+The shortest encoding is preferred, of course, and usually happens with
+primitive elements such as numbers.  However the total size of an array
+or object might not be known exactly when the header of the element is
+first generated.  It is convenient to reserve space for the largest
+possible header and then go back and fill in the correct payload size
+at the end.  This technique can result in array or object headers that
+are larger than absolutely necessary.
+
+### 3.2 Element Type
+
+The least-significant four bits of the first byte of the header (the first
+byte masked against 0x0f) determine element type.  The following codes are
+used:
+
+<ol>
+<li type="0"><p><b>NULL</b> &rarr;
+The element is a JSON "null".  The payload size for a true JSON NULL must
+must be zero.  Future versions of SQLite might extend the JSONB format
+with elements that have a zero element type but a non-zero size.  In that
+way, legacy versions of SQLite will interpret the element as a NULL 
+for backwards compatibility while newer versions will interpret the
+element in some other way.
+
+<li value="1"><p><b>TRUE</b> &rarr;
+The element is a JSON "true".  The payload size must be zero for a actual
+"true" value.  Elements with type 1 and a non-zero payload size are
+reserved for future expansion.  Legacy implementations that see an element
+type of 1 with a non-zero payload size should continue to interpret that
+element as "true" for compatibility.
+
+<li value="2"><p><b>FALSE</b> &rarr;
+The element is a JSON "false".  The payload size must be zero for a actual
+"false" value.  Elements with type 2 and a non-zero payload size are
+reserved for future expansion.  Legacy implementations that see an element
+type of 2 with a non-zero payload size should continue to interpret that
+element as "false" for compatibility.
+
+<li value="3"><p><b>INT</b> &rarr;
+The element is a JSON integer value in the canonical
+RFC 8259 format, without extensions.  The payload is the ASCII
+text representation of that numeric value.
+
+<li value="4"><p><b>INT5</b> &rarr;
+The element is a JSON integer value that is not in the
+canonical format.   The payload is the ASCII
+text representation of that numeric value.  Because the payload is in a
+non-standard format, it will need to be translated when the JSONB is
+converted into RFC 8259 text JSON.
+
+<li value="5"><p><b>FLOAT</b> &rarr;
+The element is a JSON floating-point value in the canonical
+RFC 8259 format, without extensions.  The payload is the ASCII
+text representation of that numeric value.
+
+<li value="6"><p><b>FLOAT5</b> &rarr;
+The element is a JSON floating-point value that is not in the
+canonical format.   The payload is the ASCII
+text representation of that numeric value.  Because the payload is in a
+non-standard format, it will need to be translated when the JSONB is
+converted into RFC 8259 text JSON.
+
+<li value="7"><p><b>TEXT</b> &rarr;
+The element is a JSON string value that does not contain
+any escapes nor any characters that need to be escaped for either SQL or
+JSON.  The payload is the UTF8 text representation of the string value.
+The payload does <i>not</i> include string delimiters.
+
+<li value="8"><p><b>TEXTJ</b> &rarr;
+The element is a JSON string value that contains
+RFC 8259 character escapes (such as "<tt>\n</tt>" or "<tt>\u0020</tt>").
+Those escapes will need to be translated into actual UTF8 if this element
+is [json_extract|extracted] into SQL.
+The payload is the UTF8 text representation of the escaped string value.
+The payload does <i>not</i> include string delimiters.
+
+<li value="9"><p><b>TEXT5</b> &rarr;
+The element is a JSON string value that contains
+character escapes, including some character escapes that part of JSON5
+and which are not found in the canonical RFC 8259 spec.
+Those escapes will need to be translated into standard JSON prior to
+rendering the JSON as text, or into their actual UTF8 characters if this
+element is [json_extract|extracted] into SQL.
+The payload is the UTF8 text representation of the escaped string value.
+The payload does <i>not</i> include string delimiters.
+
+<li value="10"><p><b>TEXTRAW</b> &rarr;
+The element is a JSON string value that contains
+UTF8 characters that need to be escaped if this string is rendered into
+standard JSON text.
+The payload does <i>not</i> include string delimiters.
+
+<li value="11"><p><b>ARRAY</b> &rarr;
+The element is a JSON array.  The payload contains
+JSONB elements that comprise values contained within the array.
+
+<li value="12"><p><b>OBJECT</b> &rarr;
+The element is a JSON object.  The payload contains
+pairs of JSONB elements that comprise entries for the JSON object.
+The first element in each pair must be a string (types 7 through 10).
+The second element of each pair may be any types, including nested
+arrays or objects.
+
+<li value="13"><p><b>RESERVED-13</b> &rarr;
+Reserved for future expansion.  Legacy implements that encounter this
+element type should raise an error.
+
+<li value="14"><p><b>RESERVED-14</b> &rarr;
+Reserved for future expansion.  Legacy implements that encounter this
+element type should raise an error.
+
+<li value="15"><p><b>RESERVED-15</b> &rarr;
+Reserved for future expansion.  Legacy implements that encounter this
+element type should raise an error.
+</ol>
+
+Element types outside the range of 0 to 12 are reserved for future
+expansion.  The current implement raises an error if see an element type
+other than those listed above.  However, future versions of SQLite might
+use of the three remaining element types to implement indexing or similar
+optimizations, to speed up lookup against large JSON arrays and/or objects.
+
+### 3.3 Design Rationale For Element Types
+
+A key goal of JSONB is that it should be quick to translate
+to and from text JSON and/or be constructed from SQL values.
+When converting from text into JSONB, we do not want the
+converter subroutine to burn CPU cycles converting elements
+values into some standard format which might never be used.
+Format conversion is "lazy" - it is deferred until actually
+needed.  This has implications for the JSONB format design:
+
+  1.   Numeric values are stored as text, not a numbers.  The values are
+       a direct copy of the text JSON values from which they are derived.
+
+  2.   There are multiple element types depending on the details of value
+       formats.  For example, INT is used for pure RFC-8259 integer
+       literals and INT5 exists for JSON5 extensions such as hexadecimal
+       notation.  FLOAT is used for pure RFC-8259 floating point literals
+       and FLOAT5 is used for JSON5 extensions.  There are four different
+       representations of strings, depending on where the string came from
+       and how special characters within the string are escaped.
+
+A second goal of JSONB is that it should be capable of serving as the
+"parse tree" for JSON when a JSON value is being processed by the
+various [JSON SQL functions] built into SQLite.  Before JSONB was
+developed, operations such [json_replace()] and [json_patch()]
+and similar worked in three stages:
+
+
+  1.  Translate the text JSON into a internal format that is
+      easier to scan and edit.
+  2.  Perform the requested operation on the JSON.
+  3.  Translate the internal format back into text.
+
+JSONB seeks to serve as the internal format directly - bypassing
+the first and third stages of that process.  Since most of the CPU
+cycles are spent on the first and third stages, that suggests that
+JSONB processing will be much faster than text JSON processing.
+
+So when processing JSONB, only the second stage of the three-stage
+process is required.  But when processing text JSON, it is still necessary
+to do stages one and three.  If JSONB is to be used as the internal
+binary representation, this is yet another reason to store numeric
+values as text.  Storing numbers as text minimizes the amount of
+conversion work needed for stages one and three.  This is also why
+there are four different representations of text in JSONB.  Different
+text representations are used for text coming from different sources
+(RFC-8259 JSON, JSON5, or SQL string values) and conversions only
+happen if and when they are actually needed.
+
+### 3.4 Valid JSONB BLOBs
+
+A valid JSONB BLOB consists of a single JSON element.  The element must
+exactly fill the BLOB.  This one element is often a JSON object or array
+and those usually contain additional elements as its payload, but the
+element can be a primite value such a string, number, boolean, or null.
+
+When the built-in JSON functions are attempting to determine if a BLOB
+argument is a JSONB or just a random BLOB, they look at the header of
+the outer element to see that it is well-formed and that the element
+completely fills the BLOB.  If these conditions are met, then the BLOB
+is accepted as a JSONB value.
@@ -683,6 +683,7 @@ other than that, the order of directives in Lemon is arbitrary.</p>
 <li><tt><a href='#pifdef'>%endif</a></tt>
 <li><tt><a href='#extraarg'>%extra_argument</a></tt>
 <li><tt><a href='#pfallback'>%fallback</a></tt>
+<li><tt><a href='#reallc'>%free</a></tt>
 <li><tt><a href='#pifdef'>%if</a></tt>
 <li><tt><a href='#pifdef'>%ifdef</a></tt>
 <li><tt><a href='#pifdef'>%ifndef</a></tt>
@@ -693,6 +694,7 @@ other than that, the order of directives in Lemon is arbitrary.</p>
 <li><tt><a href='#parse_accept'>%parse_accept</a></tt>
 <li><tt><a href='#parse_failure'>%parse_failure</a></tt>
 <li><tt><a href='#pright'>%right</a></tt>
+<li><tt><a href='#reallc'>%realloc</a></tt>
 <li><tt><a href='#stack_overflow'>%stack_overflow</a></tt>
 <li><tt><a href='#stack_size'>%stack_size</a></tt>
 <li><tt><a href='#start_symbol'>%start_symbol</a></tt>
@@ -1200,6 +1202,21 @@ match any input token.</p>
 the wildcard token and some other token, the other token is always used.
 The wildcard token is only matched if there are no alternatives.</p>

+<a id='reallc'></a>
+<h4>4.4.26 The <tt>%realloc</tt> and <tt>%free</tt> directives</h4>
+
+<p>The <tt>%realloc</tt> and <tt>%free</tt> directives defines function
+that allocate and free heap memory.  The signatures of these functions
+should be the same as the realloc() and free() functions from the standard
+C library.
+
+<p>If both of these functions are defined
+then these functions are used to allocate and free
+memory for supplemental parser stack space, if the initial
+parse stack space is exceeded.  The initial parser stack size
+is specified by either <tt>%stack_size</tt> or the
+-DYYSTACKDEPTH compile-time flag.
+
 <a id='errors'></a>
 <h2>5.0 Error Processing</h2>

@@ -1224,6 +1241,7 @@ to begin parsing a new file.  This is what will happen at the very
 first syntax error, of course, if there are no instances of the
 "error" non-terminal in your grammar.</p>

+
 <a id='history'></a>
 <h2>6.0 History of Lemon</h2>

@@ -24,9 +24,11 @@
 # include <stdlib.h>
 # include <limits.h>
 # include <assert.h>
-# include "console_io.h"
 # include "sqlite3.h"
 #endif
+#ifndef HAVE_CONSOLE_IO_H
+# include "console_io.h"
+#endif

 #ifndef SQLITE_CIO_NO_TRANSLATE
 # if (defined(_WIN32) || defined(WIN32)) && !SQLITE_OS_WINRT
@@ -28,7 +28,7 @@
 ** CIO_WIN_WC_XLATE is defined as 0 or 1, reflecting whether console I/O
 ** translation for Windows is effected for the build.
 */
-
+#define HAVE_CONSOLE_IO_H 1
 #ifndef SQLITE_INTERNAL_LINKAGE
 # define SQLITE_INTERNAL_LINKAGE extern /* external to translation unit */
 # include <stdio.h>
@@ -4006,7 +4006,7 @@ static int fts3ShadowName(const char *zName){
 ** Implementation of the xIntegrity() method on the FTS3/FTS4 virtual
 ** table.
 */
-static int fts3Integrity(
+static int fts3IntegrityMethod(
  sqlite3_vtab *pVtab,      /* The virtual table to be checked */
  const char *zSchema,      /* Name of schema in which pVtab lives */
  const char *zTabname,     /* Name of the pVTab table */
@@ -4014,30 +4014,21 @@ static int fts3Integrity(
  char **pzErr              /* Write error message here */
 ){
  Fts3Table *p = (Fts3Table*)pVtab;
-  char *zSql;
  int rc;
-  char *zErr = 0;
+  int bOk = 0;

-  assert( pzErr!=0 );
-  assert( *pzErr==0 );
  UNUSED_PARAMETER(isQuick);
-  zSql = sqlite3_mprintf(
-            "INSERT INTO \"%w\".\"%w\"(\"%w\") VALUES('integrity-check');",
-            zSchema, zTabname, zTabname);
-  if( zSql==0 ){
-    return SQLITE_NOMEM;
-  }
-  rc = sqlite3_exec(p->db, zSql, 0, 0, &zErr);
-  sqlite3_free(zSql);
-  if( (rc&0xff)==SQLITE_CORRUPT ){
-    *pzErr = sqlite3_mprintf("malformed inverted index for FTS%d table %s.%s",
-                p->bFts4 ? 4 : 3, zSchema, zTabname);
-  }else if( rc!=SQLITE_OK ){
+  rc = sqlite3Fts3IntegrityCheck(p, &bOk);
+  assert( rc!=SQLITE_CORRUPT_VTAB || bOk==0 );
+  if( rc!=SQLITE_OK && rc!=SQLITE_CORRUPT_VTAB ){
    *pzErr = sqlite3_mprintf("unable to validate the inverted index for"
                             " FTS%d table %s.%s: %s",
-                p->bFts4 ? 4 : 3, zSchema, zTabname, zErr);
+                p->bFts4 ? 4 : 3, zSchema, zTabname, sqlite3_errstr(rc));
+  }else if( bOk==0 ){
+    *pzErr = sqlite3_mprintf("malformed inverted index for FTS%d table %s.%s",
+                p->bFts4 ? 4 : 3, zSchema, zTabname);
  }
-  sqlite3_free(zErr);
+  sqlite3Fts3SegmentsClose(p);
  return SQLITE_OK;
 }

@@ -4068,7 +4059,7 @@ static const sqlite3_module fts3Module = {
  /* xRelease      */ fts3ReleaseMethod,
  /* xRollbackTo   */ fts3RollbackToMethod,
  /* xShadowName   */ fts3ShadowName,
-  /* xIntegrity    */ fts3Integrity,
+  /* xIntegrity    */ fts3IntegrityMethod,
 };

 /*
@@ -653,5 +653,7 @@ int sqlite3FtsUnicodeIsdiacritic(int);

 int sqlite3Fts3ExprIterate(Fts3Expr*, int (*x)(Fts3Expr*,int,void*), void*);

+int sqlite3Fts3IntegrityCheck(Fts3Table *p, int *pbOk);
+
 #endif /* !SQLITE_CORE || SQLITE_ENABLE_FTS3 */
 #endif /* _FTSINT_H */
@@ -5294,7 +5294,7 @@ static u64 fts3ChecksumIndex(
 ** If an error occurs (e.g. an OOM or IO error), return an SQLite error 
 ** code. The final value of *pbOk is undefined in this case.
 */
-static int fts3IntegrityCheck(Fts3Table *p, int *pbOk){
+int sqlite3Fts3IntegrityCheck(Fts3Table *p, int *pbOk){
  int rc = SQLITE_OK;             /* Return code */
  u64 cksum1 = 0;                 /* Checksum based on FTS index contents */
  u64 cksum2 = 0;                 /* Checksum based on %_content contents */
@@ -5372,7 +5372,7 @@ static int fts3IntegrityCheck(Fts3Table *p, int *pbOk){
    sqlite3_finalize(pStmt);
  }

-  *pbOk = (cksum1==cksum2);
+  *pbOk = (rc==SQLITE_OK && cksum1==cksum2);
  return rc;
 }

@@ -5412,7 +5412,7 @@ static int fts3DoIntegrityCheck(
 ){
  int rc;
  int bOk = 0;
-  rc = fts3IntegrityCheck(p, &bOk);
+  rc = sqlite3Fts3IntegrityCheck(p, &bOk);
  if( rc==SQLITE_OK && bOk==0 ) rc = FTS_CORRUPT_VTAB;
  return rc;
 }
@@ -88,8 +88,11 @@ struct Fts5PhraseIter {
 **   created with the "columnsize=0" option.
 **
 ** xColumnText:
-**   This function attempts to retrieve the text of column iCol of the
-**   current document. If successful, (*pz) is set to point to a buffer
+**   If parameter iCol is less than zero, or greater than or equal to the
+**   number of columns in the table, SQLITE_RANGE is returned. 
+**
+**   Otherwise, this function attempts to retrieve the text of column iCol of
+**   the current document. If successful, (*pz) is set to point to a buffer
 **   containing the text in utf-8 encoding, (*pn) is set to the size in bytes
 **   (not characters) of the buffer and SQLITE_OK is returned. Otherwise,
 **   if an error occurs, an SQLite error code is returned and the final values
@@ -99,8 +102,10 @@ struct Fts5PhraseIter {
 **   Returns the number of phrases in the current query expression.
 **
 ** xPhraseSize:
-**   Returns the number of tokens in phrase iPhrase of the query. Phrases
-**   are numbered starting from zero.
+**   If parameter iCol is less than zero, or greater than or equal to the
+**   number of phrases in the current query, as returned by xPhraseCount, 
+**   0 is returned. Otherwise, this function returns the number of tokens in
+**   phrase iPhrase of the query. Phrases are numbered starting from zero.
 **
 ** xInstCount:
 **   Set *pnInst to the total number of occurrences of all phrases within
@@ -116,12 +121,13 @@ struct Fts5PhraseIter {
 **   Query for the details of phrase match iIdx within the current row.
 **   Phrase matches are numbered starting from zero, so the iIdx argument
 **   should be greater than or equal to zero and smaller than the value
-**   output by xInstCount().
+**   output by xInstCount(). If iIdx is less than zero or greater than
+**   or equal to the value returned by xInstCount(), SQLITE_RANGE is returned.
 **
-**   Usually, output parameter *piPhrase is set to the phrase number, *piCol
+**   Otherwise, output parameter *piPhrase is set to the phrase number, *piCol
 **   to the column in which it occurs and *piOff the token offset of the
-**   first token of the phrase. Returns SQLITE_OK if successful, or an error
-**   code (i.e. SQLITE_NOMEM) if an error occurs.
+**   first token of the phrase. SQLITE_OK is returned if successful, or an
+**   error code (i.e. SQLITE_NOMEM) if an error occurs.
 **
 **   This API can be quite slow if used with an FTS5 table created with the
 **   "detail=none" or "detail=column" option. 
@@ -147,6 +153,10 @@ struct Fts5PhraseIter {
 **   Invoking Api.xUserData() returns a copy of the pointer passed as 
 **   the third argument to pUserData.
 **
+**   If parameter iPhrase is less than zero, or greater than or equal to
+**   the number of phrases in the query, as returned by xPhraseCount(),
+**   this function returns SQLITE_RANGE.
+**
 **   If the callback function returns any value other than SQLITE_OK, the
 **   query is abandoned and the xQueryPhrase function returns immediately.
 **   If the returned value is SQLITE_DONE, xQueryPhrase returns SQLITE_OK.
@@ -268,17 +278,25 @@ struct Fts5PhraseIter {
 **   to a buffer containing the requested token, and *pnToken to the
 **   size of this buffer in bytes.
 **
+**   If iPhrase or iToken are less than zero, or if iPhrase is greater than
+**   or equal to the number of phrases in the query as reported by 
+**   xPhraseCount(), or if iToken is equal to or greater than the number of
+**   tokens in the phrase, SQLITE_RANGE is returned and *ppToken and *pnToken
+     are both zeroed.
+**
 **   The output text is not a copy of the query text that specified the
 **   token. It is the output of the tokenizer module. For tokendata=1
 **   tables, this includes any embedded 0x00 and trailing data.
 **
 ** xInstToken(pFts5, iIdx, iToken, ppToken, pnToken)
 **   This is used to access token iToken of phrase hit iIdx within the
-**   current row. Output variable (*ppToken) is set to point to a buffer
-**   containing the matching document token, and (*pnToken) to the size
-**   of that buffer in bytes. This API is not available if the specified 
-**   token matches a prefix query term. In that case both output variables 
-**   are always set to 0.
+**   current row. If iIdx is less than zero or greater than or equal to the
+**   value returned by xInstCount(), SQLITE_RANGE is returned.  Otherwise,
+**   output variable (*ppToken) is set to point to a buffer containing the
+**   matching document token, and (*pnToken) to the size of that buffer in 
+**   bytes. This API is not available if the specified token matches a 
+**   prefix query term. In that case both output variables are always set 
+**   to 0.
 **
 **   The output text is not a copy of the document text that was tokenized.
 **   It is the output of the tokenizer module. For tokendata=1 tables, this 
@@ -252,8 +252,10 @@ static void fts5HighlightFunction(
  ctx.zClose = (const char*)sqlite3_value_text(apVal[2]);
  ctx.iRangeEnd = -1;
  rc = pApi->xColumnText(pFts, iCol, &ctx.zIn, &ctx.nIn);
-
-  if( ctx.zIn ){
+  if( rc==SQLITE_RANGE ){
+    sqlite3_result_text(pCtx, "", -1, SQLITE_STATIC);
+    rc = SQLITE_OK;
+  }else if( ctx.zIn ){
    if( rc==SQLITE_OK ){
      rc = fts5CInstIterInit(pApi, pFts, iCol, &ctx.iter);
    }
@@ -68,6 +68,7 @@ void sqlite3Fts5BufferAppendBlob(
 ){
  if( nData ){
    if( fts5BufferGrow(pRc, pBuf, nData) ) return;
+    assert( pBuf->p!=0 );
    memcpy(&pBuf->p[pBuf->n], pData, nData);
    pBuf->n += nData;
  }
@@ -169,6 +170,7 @@ int sqlite3Fts5PoslistNext64(
  i64 *piOff                      /* IN/OUT: Current offset */
 ){
  int i = *pi;
+  assert( a!=0 || i==0 );
  if( i>=n ){
    /* EOF */
    *piOff = -1;
@@ -176,6 +178,7 @@ int sqlite3Fts5PoslistNext64(
  }else{
    i64 iOff = *piOff;
    u32 iVal;
+    assert( a!=0 );
    fts5FastGetVarint32(a, i, iVal);
    if( iVal<=1 ){
      if( iVal==0 ){
@@ -1740,7 +1740,9 @@ static int fts5ParseTokenize(
      memset(pSyn, 0, (size_t)nByte);
      pSyn->pTerm = ((char*)pSyn) + sizeof(Fts5ExprTerm) + sizeof(Fts5Buffer);
      pSyn->nFullTerm = pSyn->nQueryTerm = nToken;
-      if( pCtx->pConfig->bTokendata ) pSyn->nQueryTerm = strlen(pSyn->pTerm);
+      if( pCtx->pConfig->bTokendata ){
+        pSyn->nQueryTerm = (int)strlen(pSyn->pTerm);
+      }
      memcpy(pSyn->pTerm, pToken, nToken);
      pSyn->pSynonym = pPhrase->aTerm[pPhrase->nTerm-1].pSynonym;
      pPhrase->aTerm[pPhrase->nTerm-1].pSynonym = pSyn;
@@ -1769,7 +1771,7 @@ static int fts5ParseTokenize(
      pTerm->pTerm = sqlite3Fts5Strndup(&rc, pToken, nToken);
      pTerm->nFullTerm = pTerm->nQueryTerm = nToken;
      if( pCtx->pConfig->bTokendata && rc==SQLITE_OK ){ 
-        pTerm->nQueryTerm = strlen(pTerm->pTerm);
+        pTerm->nQueryTerm = (int)strlen(pTerm->pTerm);
      }
    }
  }
@@ -1885,11 +1887,15 @@ int sqlite3Fts5ExprClonePhrase(
  Fts5Expr **ppNew
 ){
  int rc = SQLITE_OK;             /* Return code */
-  Fts5ExprPhrase *pOrig;          /* The phrase extracted from pExpr */
+  Fts5ExprPhrase *pOrig = 0;      /* The phrase extracted from pExpr */
  Fts5Expr *pNew = 0;             /* Expression to return via *ppNew */
  TokenCtx sCtx = {0,0,0};        /* Context object for fts5ParseTokenize */
-  pOrig = pExpr->apExprPhrase[iPhrase];
-  pNew = (Fts5Expr*)sqlite3Fts5MallocZero(&rc, sizeof(Fts5Expr));
+  if( iPhrase<0 || iPhrase>=pExpr->nPhrase ){
+    rc = SQLITE_RANGE;
+  }else{
+    pOrig = pExpr->apExprPhrase[iPhrase];
+    pNew = (Fts5Expr*)sqlite3Fts5MallocZero(&rc, sizeof(Fts5Expr));
+  }
  if( rc==SQLITE_OK ){
    pNew->apExprPhrase = (Fts5ExprPhrase**)sqlite3Fts5MallocZero(&rc, 
        sizeof(Fts5ExprPhrase*));
@@ -1902,7 +1908,7 @@ int sqlite3Fts5ExprClonePhrase(
    pNew->pRoot->pNear = (Fts5ExprNearset*)sqlite3Fts5MallocZero(&rc, 
        sizeof(Fts5ExprNearset) + sizeof(Fts5ExprPhrase*));
  }
-  if( rc==SQLITE_OK ){
+  if( rc==SQLITE_OK && ALWAYS(pOrig!=0) ){
    Fts5Colset *pColsetOrig = pOrig->pNode->pNear->pColset;
    if( pColsetOrig ){
      sqlite3_int64 nByte;
@@ -1916,25 +1922,27 @@ int sqlite3Fts5ExprClonePhrase(
    }
  }

-  if( pOrig->nTerm ){
-    int i;                          /* Used to iterate through phrase terms */
-    sCtx.pConfig = pExpr->pConfig;
-    for(i=0; rc==SQLITE_OK && i<pOrig->nTerm; i++){
-      int tflags = 0;
-      Fts5ExprTerm *p;
-      for(p=&pOrig->aTerm[i]; p && rc==SQLITE_OK; p=p->pSynonym){
-        rc = fts5ParseTokenize((void*)&sCtx, tflags, p->pTerm,p->nFullTerm,0,0);
-        tflags = FTS5_TOKEN_COLOCATED;
-      }
-      if( rc==SQLITE_OK ){
-        sCtx.pPhrase->aTerm[i].bPrefix = pOrig->aTerm[i].bPrefix;
-        sCtx.pPhrase->aTerm[i].bFirst = pOrig->aTerm[i].bFirst;
+  if( rc==SQLITE_OK ){
+    if( pOrig->nTerm ){
+      int i;                          /* Used to iterate through phrase terms */
+      sCtx.pConfig = pExpr->pConfig;
+      for(i=0; rc==SQLITE_OK && i<pOrig->nTerm; i++){
+        int tflags = 0;
+        Fts5ExprTerm *p;
+        for(p=&pOrig->aTerm[i]; p && rc==SQLITE_OK; p=p->pSynonym){
+          rc = fts5ParseTokenize((void*)&sCtx,tflags,p->pTerm,p->nFullTerm,0,0);
+          tflags = FTS5_TOKEN_COLOCATED;
+        }
+        if( rc==SQLITE_OK ){
+          sCtx.pPhrase->aTerm[i].bPrefix = pOrig->aTerm[i].bPrefix;
+          sCtx.pPhrase->aTerm[i].bFirst = pOrig->aTerm[i].bFirst;
+        }
      }
+    }else{
+      /* This happens when parsing a token or quoted phrase that contains
+      ** no token characters at all. (e.g ... MATCH '""'). */
+      sCtx.pPhrase = sqlite3Fts5MallocZero(&rc, sizeof(Fts5ExprPhrase));
    }
-  }else{
-    /* This happens when parsing a token or quoted phrase that contains
-    ** no token characters at all. (e.g ... MATCH '""'). */
-    sCtx.pPhrase = sqlite3Fts5MallocZero(&rc, sizeof(Fts5ExprPhrase));
  }

  if( rc==SQLITE_OK && ALWAYS(sCtx.pPhrase) ){
@@ -3247,4 +3255,3 @@ void sqlite3Fts5ExprClearTokens(Fts5Expr *pExpr){
    }
  }
 }
-
@@ -1547,9 +1547,9 @@ static int fts5DlidxLvlNext(Fts5DlidxLvl *pLvl){
    }

    if( iOff<pData->nn ){
-      i64 iVal;
+      u64 iVal;
      pLvl->iLeafPgno += (iOff - pLvl->iOff) + 1;
-      iOff += fts5GetVarint(&pData->p[iOff], (u64*)&iVal);
+      iOff += fts5GetVarint(&pData->p[iOff], &iVal);
      pLvl->iRowid += iVal;
      pLvl->iOff = iOff;
    }else{
@@ -7944,7 +7944,7 @@ static void fts5IndexIntegrityCheckEmpty(
 }

 static void fts5IntegrityCheckPgidx(Fts5Index *p, Fts5Data *pLeaf){
-  int iTermOff = 0;
+  i64 iTermOff = 0;
  int ii;

  Fts5Buffer buf1 = {0,0,0};
@@ -7953,7 +7953,7 @@ static void fts5IntegrityCheckPgidx(Fts5Index *p, Fts5Data *pLeaf){
  ii = pLeaf->szLeaf;
  while( ii<pLeaf->nn && p->rc==SQLITE_OK ){
    int res;
-    int iOff;
+    i64 iOff;
    int nIncr;

    ii += fts5GetVarint32(&pLeaf->p[ii], nIncr);
@@ -1586,7 +1586,10 @@ static int fts5SpecialInsert(
  }else if( 0==sqlite3_stricmp("flush", zCmd) ){
    rc = sqlite3Fts5FlushToDisk(&pTab->p);
  }else{
-    rc = sqlite3Fts5IndexLoadConfig(pTab->p.pIndex);
+    rc = sqlite3Fts5FlushToDisk(&pTab->p);
+    if( rc==SQLITE_OK ){
+      rc = sqlite3Fts5IndexLoadConfig(pTab->p.pIndex);
+    }
    if( rc==SQLITE_OK ){
      rc = sqlite3Fts5ConfigSetValue(pTab->p.pConfig, zCmd, pVal, &bError);
    }
@@ -1911,7 +1914,10 @@ static int fts5ApiColumnText(
 ){
  int rc = SQLITE_OK;
  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
-  if( fts5IsContentless((Fts5FullTable*)(pCsr->base.pVtab)) 
+  Fts5Table *pTab = (Fts5Table*)(pCsr->base.pVtab);
+  if( iCol<0 || iCol>=pTab->pConfig->nCol ){
+    rc = SQLITE_RANGE;
+  }else if( fts5IsContentless((Fts5FullTable*)(pCsr->base.pVtab)) 
   || pCsr->ePlan==FTS5_PLAN_SPECIAL 
  ){
    *pz = 0;
@@ -1936,8 +1942,9 @@ static int fts5CsrPoslist(
  int rc = SQLITE_OK;
  int bLive = (pCsr->pSorter==0);

-  if( CsrFlagTest(pCsr, FTS5CSR_REQUIRE_POSLIST) ){
-
+  if( iPhrase<0 || iPhrase>=sqlite3Fts5ExprPhraseCount(pCsr->pExpr) ){
+    rc = SQLITE_RANGE;
+  }else if( CsrFlagTest(pCsr, FTS5CSR_REQUIRE_POSLIST) ){
    if( pConfig->eDetail!=FTS5_DETAIL_FULL ){
      Fts5PoslistPopulator *aPopulator;
      int i;
@@ -1961,15 +1968,21 @@ static int fts5CsrPoslist(
    CsrFlagClear(pCsr, FTS5CSR_REQUIRE_POSLIST);
  }

-  if( pCsr->pSorter && pConfig->eDetail==FTS5_DETAIL_FULL ){
-    Fts5Sorter *pSorter = pCsr->pSorter;
-    int i1 = (iPhrase==0 ? 0 : pSorter->aIdx[iPhrase-1]);
-    *pn = pSorter->aIdx[iPhrase] - i1;
-    *pa = &pSorter->aPoslist[i1];
+  if( rc==SQLITE_OK ){
+    if( pCsr->pSorter && pConfig->eDetail==FTS5_DETAIL_FULL ){
+      Fts5Sorter *pSorter = pCsr->pSorter;
+      int i1 = (iPhrase==0 ? 0 : pSorter->aIdx[iPhrase-1]);
+      *pn = pSorter->aIdx[iPhrase] - i1;
+      *pa = &pSorter->aPoslist[i1];
+    }else{
+      *pn = sqlite3Fts5ExprPoslist(pCsr->pExpr, iPhrase, pa);
+    }
  }else{
-    *pn = sqlite3Fts5ExprPoslist(pCsr->pExpr, iPhrase, pa);
+    *pa = 0;
+    *pn = 0;
  }

+
  return rc;
 }

@@ -2721,8 +2734,8 @@ static int fts5RollbackToMethod(sqlite3_vtab *pVtab, int iSavepoint){
  int rc = SQLITE_OK;
  fts5CheckTransactionState(pTab, FTS5_ROLLBACKTO, iSavepoint);
  fts5TripCursors(pTab);
-  pTab->p.pConfig->pgsz = 0;
  if( (iSavepoint+1)<=pTab->iSavepoint ){
+    pTab->p.pConfig->pgsz = 0;
    rc = sqlite3Fts5StorageRollback(pTab->pStorage);
  }
  return rc;
@@ -2958,27 +2971,21 @@ static int fts5IntegrityMethod(
  char **pzErr            /* Write error message here */
 ){
  Fts5FullTable *pTab = (Fts5FullTable*)pVtab;
-  Fts5Config *pConfig = pTab->p.pConfig;
-  char *zSql;
-  char *zErr = 0;
  int rc;
+
  assert( pzErr!=0 && *pzErr==0 );
  UNUSED_PARAM(isQuick);
-  zSql = sqlite3_mprintf(
-            "INSERT INTO \"%w\".\"%w\"(\"%w\") VALUES('integrity-check');",
-            zSchema, zTabname, pConfig->zName);
-  if( zSql==0 ) return SQLITE_NOMEM;
-  rc = sqlite3_exec(pConfig->db, zSql, 0, 0, &zErr);
-  sqlite3_free(zSql);
+  rc = sqlite3Fts5StorageIntegrity(pTab->pStorage, 0);
  if( (rc&0xff)==SQLITE_CORRUPT ){
    *pzErr = sqlite3_mprintf("malformed inverted index for FTS5 table %s.%s",
                zSchema, zTabname);
  }else if( rc!=SQLITE_OK ){
    *pzErr = sqlite3_mprintf("unable to validate the inverted index for"
                             " FTS5 table %s.%s: %s",
-                zSchema, zTabname, zErr);
+                zSchema, zTabname, sqlite3_errstr(rc));
  }
-  sqlite3_free(zErr);
+  sqlite3Fts5IndexCloseReader(pTab->p.pIndex);
+
  return SQLITE_OK;
 }

@@ -673,7 +673,7 @@ int sqlite3Fts5StorageRebuild(Fts5Storage *p){
  }

  if( rc==SQLITE_OK ){
-    rc = fts5StorageGetStmt(p, FTS5_STMT_SCAN, &pScan, 0);
+    rc = fts5StorageGetStmt(p, FTS5_STMT_SCAN, &pScan, pConfig->pzErrmsg);
  }

  while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pScan) ){
@@ -61,6 +61,12 @@ proc fts5_test_collist {cmd} {
  set res
 }

+proc fts5_collist {cmd iPhrase} {
+  set res [list]
+  $cmd xPhraseColumnForeach $iPhrase c { lappend res $c }
+  set res
+}
+
 proc fts5_test_columnsize {cmd} {
  set res [list]
  for {set i 0} {$i < [$cmd xColumnCount]} {incr i} {
@@ -69,6 +75,10 @@ proc fts5_test_columnsize {cmd} {
  set res
 }

+proc fts5_columntext {cmd iCol} {
+  $cmd xColumnText $iCol
+}
+
 proc fts5_test_columntext {cmd} {
  set res [list]
  for {set i 0} {$i < [$cmd xColumnCount]} {incr i} {
@@ -125,6 +135,13 @@ proc fts5_test_queryphrase {cmd} {
  set res
 }

+proc fts5_queryphrase {cmd iPhrase} {
+  set cnt [list]
+  for {set j 0} {$j < [$cmd xColumnCount]} {incr j} { lappend cnt 0 }
+  $cmd xQueryPhrase $iPhrase [list test_queryphrase_cb cnt]
+  set cnt
+}
+
 proc fts5_test_phrasecount {cmd} {
  $cmd xPhraseCount
 }
@@ -154,6 +171,9 @@ proc fts5_aux_test_functions {db} {

    fts5_test_queryphrase
    fts5_test_phrasecount
+    fts5_columntext
+    fts5_queryphrase
+    fts5_collist
  } {
    sqlite3_fts5_create_function $db $f $f
  }
@@ -334,4 +334,47 @@ do_execsql_test 11.2 {
  SELECT fts5_hitcount(x1) FROM x1('one') LIMIT 1;
 } {5}

+#-------------------------------------------------------------------------
+# Test that xColumnText returns SQLITE_RANGE when it should.
+#
+reset_db
+fts5_aux_test_functions db
+do_execsql_test 12.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, b, c);
+  INSERT INTO t1 VALUES('one', 'two', 'three');
+  INSERT INTO t1 VALUES('one', 'one', 'one');
+  INSERT INTO t1 VALUES('two', 'two', 'two');
+  INSERT INTO t1 VALUES('three', 'three', 'three');
+}
+
+do_catchsql_test 12.1.1 {
+  SELECT fts5_columntext(t1, -1) FROM t1('two');
+} {1 SQLITE_RANGE}
+do_catchsql_test 12.1.2 {
+  SELECT fts5_columntext(t1, 3) FROM t1('two');
+} {1 SQLITE_RANGE}
+do_catchsql_test 12.1.2 {
+  SELECT fts5_columntext(t1, 1) FROM t1('one AND two');
+} {0 two}
+
+do_catchsql_test 12.2.1 {
+  SELECT fts5_queryphrase(t1, -1) FROM t1('one AND two');
+} {1 SQLITE_RANGE}
+do_catchsql_test 12.2.2 {
+  SELECT fts5_queryphrase(t1, 2) FROM t1('one AND two');
+} {1 SQLITE_RANGE}
+do_catchsql_test 12.2.3 {
+  SELECT fts5_queryphrase(t1, 1) FROM t1('one AND two');
+} {0 {{1 2 1}}}
+
+do_catchsql_test 12.3.1 {
+  SELECT fts5_collist(t1, -1) FROM t1('one AND two');
+} {1 SQLITE_RANGE}
+do_catchsql_test 12.3.2 {
+  SELECT fts5_collist(t1, 2) FROM t1('one AND two');
+} {1 SQLITE_RANGE}
+do_catchsql_test 12.3.3 {
+  SELECT fts5_collist(t1, 1) FROM t1('one AND two');
+} {0 1}
+
 finish_test
@@ -293,4 +293,39 @@ do_catchsql_test 7.2.5 {
  SELECT * FROM t1('abc') ORDER BY rank;
 } {1 {recursively defined fts5 content table}}

+#---------------------------------------------------------------------------
+# Check that if the content table is a view, and that view contains an
+# error, a reasonable error message is returned if the user tries to
+# read from the view via the fts5 table.
+#
+reset_db
+do_execsql_test 8.1 {
+  CREATE VIEW a1 AS 
+    SELECT 1 AS r, text_value(1) AS t
+      UNION ALL
+    SELECT 2 AS r, text_value(2) AS t;
+
+  CREATE VIRTUAL TABLE t1 USING fts5(t, content='a1', content_rowid='r');
+}
+
+foreach {tn sql} {
+  1 "SELECT * FROM t1"
+  2 "INSERT INTO t1(t1) VALUES('rebuild')"
+  3 "SELECT * FROM t1 WHERE rowid=1"
+} {
+  do_catchsql_test 8.2.$tn $sql {1 {no such function: text_value}}
+}
+
+proc text_value {i} {
+  if {$i==1} { return "one" }
+  if {$i==2} { return "two" }
+  return "many"
+}
+db func text_value text_value
+
+do_execsql_test 8.3.1 { SELECT * FROM t1 } {one two}
+do_execsql_test 8.3.2 { INSERT INTO t1(t1) VALUES('rebuild') }
+do_execsql_test 8.3.3 { SELECT * FROM t1 WHERE rowid=1 } {one}
+do_execsql_test 8.3.4 { SELECT rowid FROM t1('two') } {2}
+
 finish_test
@@ -1222,6 +1222,235 @@ do_catchsql_test 8.1 {
  SELECT rowid FROM t1('a* NOT ý') ;
 } {0 {1 2 3 4 5 6 7}}

+#-------------------------------------------------------------------------
+reset_db
+do_test 9.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 32768 pagesize 4096 filename crash-c76a16c24c8ba6.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 08   .....@  ........
+|     32: 00 00 00 02 00 00 00 01 00 00 00 09 00 00 00 04   ................
+|     96: 00 00 00 00 0d 0f c7 00 07 0d 92 00 0f 8d 0f 36   ...............6
+|    112: 0e cb 0e 6b 0e 0e 0d b6 0d 92 0d 92 00 00 00 00   ...k............
+|   3472: 00 00 22 08 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3488: 32 74 32 08 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3504: 20 74 32 28 78 29 56 07 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3520: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3536: 6f 6e 66 69 67 07 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3552: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3568: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3584: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 06    WITHOUT ROWID[.
+|   3600: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3616: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3632: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3648: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3664: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3680: 59 2c 20 73 7a 20 42 4c 4f 42 29 5e 05 07 17 21   Y, sz BLOB)^...!
+|   3696: 21 01 81 07 74 61 62 6c 65 74 31 5f 63 6f 6e 74   !...tablet1_cont
+|   3712: 65 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 05 43 52   entt1_content.CR
+|   3728: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63   EATE TABLE 't1_c
+|   3744: 6f 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47   ontent'(id INTEG
+|   3760: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3776: 63 30 2c 20 63 31 2c 20 63 32 29 69 04 07 17 19   c0, c1, c2)i....
+|   3792: 19 01 81 2d 74 61 62 6c 65 74 31 5f 69 64 78 74   ...-tablet1_idxt
+|   3808: 31 5f 69 64 78 04 43 52 45 41 54 45 20 54 41 42   1_idx.CREATE TAB
+|   3824: 4c 45 20 27 74 31 5f 69 64 78 27 28 73 65 67 69   LE 't1_idx'(segi
+|   3840: 64 2c 20 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50   d, term, pgno, P
+|   3856: 52 49 4d 41 52 59 20 4b 45 59 28 73 65 67 69 64   RIMARY KEY(segid
+|   3872: 2c 20 74 65 72 6d 29 29 20 57 49 54 48 4f 55 54   , term)) WITHOUT
+|   3888: 20 52 4f 57 49 44 55 03 07 17 1b 1b 01 81 01 74    ROWIDU........t
+|   3904: 61 62 6c 65 74 31 5f 64 61 74 61 74 31 5f 64 61   ablet1_datat1_da
+|   3920: 74 61 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   ta.CREATE TABLE 
+|   3936: 27 74 31 5f 64 61 74 61 27 28 69 64 20 49 4e 54   't1_data'(id INT
+|   3952: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
+|   3968: 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 38 02 06   , block BLOB)8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 35   LE t1 USING fts5
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 00 00 00 00 00 00   (a,b,c).........
+| page 3 offset 8192
+|      0: 0d 00 00 00 03 0c 94 00 0f e6 0f ef 0c 94 00 00   ................
+|   3216: 00 00 00 00 86 4a 84 80 80 80 80 01 04 00 8d 18   .....J..........
+|   3232: 00 00 03 2b 02 30 30 01 02 06 01 02 06 01 02 06   ...+.00.........
+|   3248: 1f 02 03 01 02 03 01 02 03 01 08 32 30 31 36 30   ...........20160
+|   3264: 36 30 39 01 02 07 01 02 07 01 02 07 01 01 34 01   609...........4.
+|   3280: 02 05 01 02 05 01 02 05 01 01 35 01 02 04 01 02   ..........5.....
+|   3296: 04 01 02 04 02 07 30 30 30 30 30 30 30 1c 02 04   ......0000000...
+|   3312: 01 02 04 01 02 04 01 06 62 69 6e 61 72 79 03 06   ........binary..
+|   3328: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3344: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3360: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3376: 03 06 01 02 02 03 06 01 02 02 01 08 63 6f 6d 70   ............comp
+|   3392: 69 6c 65 72 01 02 02 01 02 02 01 02 02 01 06 64   iler...........d
+|   3408: 62 73 74 61 74 07 02 03 01 02 03 01 02 03 02 04   bstat...........
+|   3424: 65 62 75 67 04 02 02 01 02 02 01 02 02 01 06 65   ebug...........e
+|   3440: 6e 61 62 6c 65 07 02 02 01 02 02 01 02 02 01 02   nable...........
+|   3456: 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02   ................
+|   3472: 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01   ................
+|   3488: 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02   ................
+|   3504: 02 01 02 02 02 08 78 74 65 6e 73 69 6f 6e 1f 02   ......xtension..
+|   3520: 04 01 02 04 01 02 04 01 04 66 74 73 34 0a 02 03   .........fts4...
+|   3536: 01 02 03 01 02 03 04 01 35 0d 02 03 01 02 03 01   ........5.......
+|   3552: 02 03 01 03 67 63 63 01 02 03 01 02 03 01 02 03   ....gcc.........
+|   3568: 02 06 65 6f 70 6f 6c 79 10 02 03 01 02 03 01 02   ..eopoly........
+|   3584: 03 01 05 6a 73 6f 6e 31 13 02 03 01 02 03 01 02   ...json1........
+|   3600: 03 01 04 6c 6f 61 64 1f 02 03 01 02 03 01 02 03   ...load.........
+|   3616: 01 03 6d 61 78 1c 02 02 01 02 02 01 02 02 02 05   ..max...........
+|   3632: 65 6d 6f 72 79 1c 02 03 01 02 03 01 02 03 04 04   emory...........
+|   3648: 73 79 73 35 16 02 03 01 02 03 01 02 03 01 06 6e   sys5...........n
+|   3664: 6f 63 61 73 65 02 06 01 02 02 03 06 01 02 02 03   ocase...........
+|   3680: 06 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06   ................
+|   3696: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3712: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3728: 02 01 04 6f 6d 69 74 1f 02 02 01 02 02 01 02 02   ...omit.........
+|   3744: 01 05 72 74 72 65 65 19 02 03 01 02 03 01 02 03   ..rtree.........
+|   3760: 04 02 69 6d 01 06 01 02 02 03 06 01 02 02 03 06   ..im............
+|   3776: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3792: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3808: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3824: 01 0a 74 68 72 65 61 64 73 61 66 65 03 57 34 56   ..threadsafe.W4V
+|   3840: 94 64 91 46 85 84 04 76 74 61 62 07 02 04 01 02   .d.F...vtab.....
+|   3856: 04 01 02 04 01 01 78 01 06 01 01 02 01 06 01 01   ......x.........
+|   3872: 02 01 06 01 01 02 01 06 01 01 02 01 06 01 10 02   ................
+|   3888: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3904: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   3920: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   3936: 01 02 01 06 01 01 10 01 06 01 01 02 01 06 01 01   ................
+|   3952: 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02   ................
+|   3968: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3984: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   4000: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   4016: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   4032: 02 01 06 01 01 02 01 06 01 01 02 04 15 13 0c 0c   ................
+|   4048: 12 44 13 11 0f 47 13 0f 0c 0e 11 10 0f 0e 10 0f   .D...G..........
+|   4064: 44 0f 10 40 15 0f 07 01 03 00 14 24 5a 24 24 0f   D..@.......$Z$$.
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 4 offset 12288
+|      0: 0a 00 00 00 01 0f fa 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 24 0c 0a 00 0f d8 0f af 0f 86 0f 74   ....$..........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 0d ef 0d d5   ...t.[.@.$......
+|     48: 0d bb 0d a0 0d 84 0d 68 0d 4f 0d 35 0d 1b 0c fb   .......h.O.5....
+|     64: 0c da 0c b9 0c 99 0c 78 0c 57 0c 3e 0c 24 0c 0a   .......x.W.>.$..
+|   3072: 00 00 00 00 00 00 00 00 00 00 18 24 05 00 25 0f   ...........$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 22   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 31 46 45 3d   ..%..THREADS1FE=
+|   3152: 30 58 52 64 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRdRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT LOAD EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   MAX MEMORY=50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 17 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MAX MEMORY=500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 45 45 58 4e 4f 43 41 53 45 17   LE RTREEXNOCASE.
+|   3408: 19 05 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   ...%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4b 45 20 4d 45 4d 53 59 53 35 58 42 49   NABKE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 42 60 2d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   B`-EMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 15 05 00 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 58 42   ..ENABLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 31 58 4e 4f 43 41 53 45 17   LE JSON1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 58 42 49   NABLE GEOPOLYXBI
+|   3616: 4e 41 52 59 1a 11 05 00 39 0f 19 45 4e 41 42 4c   NARY....9..ENABL
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 43 41 53 45   E GEOPOLYXNOCASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 0d 05   E FTS5XNOCASE...
+|   3728: 00 23 0f 17 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 49 4e 41 52 59 17 0b   LE FTS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 34   ..#..ENABLE FTS4
+|   3792: 58 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   XNOCASE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 24 15 48 4e 4f 43 41 53 45 1d   TAT VT$.HNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   XRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3c 67   ...C..COMPILER<g
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 0f 17 43   9XNOCASE&...C..C
+|   4064: 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e   OMPILER=gcc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 30 39 58 52 54 52 49 4d   0 20160609XRTRIM
+| page 6 offset 20480
+|      0: 0d 00 00 00 24 0e e0 00 0f f8 0f f0 0f e8 0f e0   ....$...........
+|     16: 0f d8 0f d0 0f c8 0f c0 0f b8 0f b0 0f a8 0f a0   ................
+|     32: 1f 98 0f 90 0f 88 0f 80 0f 78 0f 70 0f 68 0f 60   .........x.p.h.`
+|     48: 0f 58 0f 50 0f 48 0f 40 0f 38 0f 30 0f 28 0f 20   .X.P.H.@.8.0.(. 
+|     64: 0f 18 0f 10 0f 08 0f 00 0e f8 0e f0 0e e8 0e e0   ................
+|   3808: 06 24 03 00 12 02 01 01 06 23 03 00 12 02 01 01   .$.......#......
+|   3824: 06 22 03 00 12 02 01 01 06 21 03 00 12 03 01 01   .........!......
+|   3840: 06 20 03 00 12 03 01 01 06 1f 03 00 12 03 01 01   . ..............
+|   3856: 06 1e 03 00 12 03 01 01 06 1d 03 00 12 03 01 01   ................
+|   3872: 06 1c 03 00 12 03 01 01 06 1b 03 00 12 02 01 01   ................
+|   3888: 06 1a 03 00 12 02 01 01 06 19 03 00 12 02 01 01   ................
+|   3904: 06 18 03 00 12 02 01 01 06 17 03 00 12 02 01 01   ................
+|   3920: 06 15 f3 00 12 02 01 01 06 15 03 00 12 02 01 01   ................
+|   3936: 06 14 03 00 12 02 01 01 06 13 03 00 12 02 01 01   ................
+|   3952: 06 12 03 00 12 02 01 01 06 11 03 00 12 02 01 01   ................
+|   3968: 06 10 03 00 12 02 01 01 06 0f 03 00 12 02 01 01   ................
+|   3984: 06 0e 03 00 12 02 01 01 06 0d 03 00 12 02 01 01   ................
+|   4000: 06 0c 03 00 12 02 01 01 06 0b 03 00 12 02 01 01   ................
+|   4016: 06 0a 03 00 12 02 01 01 06 09 03 00 12 03 01 01   ................
+|   4032: 06 08 03 00 12 03 01 01 06 07 03 00 12 03 01 01   ................
+|   4048: 06 06 03 00 12 01 01 01 06 05 03 00 12 01 01 01   ................
+|   4064: 06 04 03 00 12 01 01 01 06 03 03 00 12 06 01 01   ................
+|   4080: 06 02 03 00 12 06 01 01 06 01 03 00 12 06 01 01   ................
+| page 7 offset 24576
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 8 offset 28672
+|      0: 0d 00 00 00 03 0f d6 00 0f f4 0f e9 0f d6 00 00   ................
+|   4048: 00 00 00 00 00 00 11 03 02 2b 69 6e 74 65 67 72   .........+integr
+|   4064: 69 74 79 2d 63 68 65 63 6b 09 02 02 1b 72 65 62   ity-check....reb
+|   4080: 75 69 6c 64 0a 01 02 1d 6f 70 74 69 00 00 00 00   uild....opti....
+| end crash-c76a16c24c8ba6.db
+}]} {}
+
+#.testctrl prng_seed 1 db
+#.testctrl internal_functions
+#.testctrl json_selfcheck on
+#
+
+do_execsql_test 9.1 { 
+  UPDATE t1 SET b=quote(zeroblob(current_date)) WHERE t1 MATCH 't*';
+  SAVEPOINT a;
+  UPDATE t1 SET b=quote(zeroblob(current_date)) WHERE t1 MATCH 't*';
+  INSERT INTO t1(t1,rank) VALUES('secure-delete',1);
+}
+do_catchsql_test 9.2 {
+  DELETE FROM t1;
+} {1 {database disk image is malformed}}
+
 sqlite3_fts5_may_be_corrupt 0
 finish_test

@@ -355,4 +355,30 @@ do_execsql_test 11.4 {
  PRAGMA integrity_check(t2);
 } {ok}

+#-------------------------------------------------------------------
+reset_db
+
+do_execsql_test 12.1 {
+  CREATE VIRTUAL TABLE x1 USING fts5(a, b);
+  INSERT INTO x1 VALUES('one', 'two');
+  INSERT INTO x1 VALUES('three', 'four');
+  INSERT INTO x1 VALUES('five', 'six');
+}
+
+do_execsql_test 12.2 {
+  PRAGMA integrity_check
+} {ok}
+
+db close
+sqlite3 db test.db -readonly 1
+
+explain_i {
+  PRAGMA integrity_check
+  }
+do_execsql_test 12.3 {
+  PRAGMA integrity_check
+} {ok}
+
+
+
 finish_test
@@ -515,5 +515,25 @@ do_execsql_test 18.2 {
  COMMIT;
 }

+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 19.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(text);
+  CREATE TABLE t2(text);
+  BEGIN;
+    INSERT INTO t1 VALUES('one');
+    INSERT INTO t1 VALUES('two');
+    INSERT INTO t1 VALUES('three');
+    INSERT INTO t1 VALUES('one');
+    INSERT INTO t1 VALUES('two');
+    INSERT INTO t1 VALUES('three');
+    SAVEPOINT one;
+      INSERT INTO t2 VALUES('one');
+      INSERT INTO t2 VALUES('two');
+      INSERT INTO t2 VALUES('three');
+    ROLLBACK TO one;
+  COMMIT;
+}
+
 finish_test

@@ -21,8 +21,22 @@ ifcapable !fts5 {
  return
 }

+# The tests below verify that a doclist-index is used to limit the number
+# of pages loaded into the cache. It does this by querying sqlite3_db_status()
+# for the amount of memory used by the pager cache.
+#
+# memsubsys1 effectively limits the page-cache to 24 pages. Which masks
+# the effect tested by the tests in this file. And "mmap" prevents the 
+# cache from being used, also preventing these tests from working.
+#
+if {[permutation]=="memsubsys1" || [permutation]=="mmap"} {
+  finish_test
+  return
+}
+
 sqlite3_fts5_register_origintext db
 do_execsql_test 1.0 {
+  PRAGMA page_size = 4096;
  CREATE VIRTUAL TABLE ft USING fts5(
      x, tokenize="origintext unicode61", tokendata=1
  );
@@ -86,71 +86,76 @@ do_execsql_test 2.8 {
 # Tests with large/small rowid values.
 #

-reset_db
-
-expr srand(0)
-
-set vocab {
-  Popper Poppins Popsicle Porfirio Porrima Porsche
-  Porter Portia Portland Portsmouth Portugal Portuguese
-  Poseidon Post PostgreSQL Potemkin Potomac Potsdam
-  Pottawatomie Potter Potts Pound Poussin Powell
-  PowerPC PowerPoint Powers Powhatan Poznan Prada
-  Prado Praetorian Prague Praia Prakrit Pratchett
-  Pratt Pravda Praxiteles Preakness Precambrian Preminger
-  Premyslid Prensa Prentice Pres Presbyterian Presbyterianism
-}
-proc newdoc {} {
-  for {set i 0} {$i<8} {incr i} {
-    lappend ret [lindex $::vocab [expr int(abs(rand()) * [llength $::vocab])]]
+foreach {tn cfg} {
+  1 ""
+  2 "INSERT INTO fff(fff, rank) VALUES('secure-delete', 1)"
+} {
+  reset_db
+  
+  expr srand(0)
+  
+  set vocab {
+    Popper Poppins Popsicle Porfirio Porrima Porsche
+    Porter Portia Portland Portsmouth Portugal Portuguese
+    Poseidon Post PostgreSQL Potemkin Potomac Potsdam
+    Pottawatomie Potter Potts Pound Poussin Powell
+    PowerPC PowerPoint Powers Powhatan Poznan Prada
+    Prado Praetorian Prague Praia Prakrit Pratchett
+    Pratt Pravda Praxiteles Preakness Precambrian Preminger
+    Premyslid Prensa Prentice Pres Presbyterian Presbyterianism
  }
-  set ret
-}
-db func newdoc newdoc
-
-do_execsql_test 3.0 {
-  CREATE VIRTUAL TABLE fff USING fts5(y);
-  INSERT INTO fff(fff, rank) VALUES('pgsz', 64);
-
-  WITH s(x) AS ( VALUES(1) UNION ALL SELECT x+1 FROM s WHERE x<1000 )
-  INSERT INTO fff(rowid, y) SELECT random() , newdoc() FROM s;
-
-  WITH s(x) AS ( VALUES(1) UNION ALL SELECT x+1 FROM s WHERE x<1000 )
-  INSERT INTO fff(rowid, y) SELECT random() , newdoc() FROM s;
-
-  WITH s(x) AS ( VALUES(1) UNION ALL SELECT x+1 FROM s WHERE x<1000 )
-  INSERT INTO fff(rowid, y) SELECT random() , newdoc() FROM s;
-
-  INSERT INTO fff(fff, rank) VALUES('secure-delete', 1);
-}
-
-proc lshuffle {in} {
-  set out [list]
-  while {[llength $in]>0} {
-    set idx [expr int(abs(rand()) * [llength $in])]
-    lappend out [lindex $in $idx]
-    set in [lreplace $in $idx $idx]
-  }
-  set out
-}
-
-#dump fff
-
-set iTest 1
-foreach ii [lshuffle [db eval {SELECT rowid FROM fff}]] {
-  #if {$iTest==1} { dump fff }
-  #if {$iTest==1} { breakpoint }
-  do_execsql_test 3.1.$iTest.$ii {
-    DELETE FROM fff WHERE rowid=$ii;
-  }
-  #if {$iTest==1} { dump fff }
-  if {($iTest % 20)==0} {
-    do_execsql_test 3.1.$iTest.$ii.ic {
-      INSERT INTO fff(fff) VALUES('integrity-check');
+  proc newdoc {} {
+    for {set i 0} {$i<8} {incr i} {
+      lappend ret [lindex $::vocab [expr int(abs(rand()) * [llength $::vocab])]]
    }
+    set ret
+  }
+  db func newdoc newdoc
+  
+  do_execsql_test 3.$tn.0 {
+    CREATE VIRTUAL TABLE fff USING fts5(y);
+    INSERT INTO fff(fff, rank) VALUES('pgsz', 64);
+  
+    WITH s(x) AS ( VALUES(1) UNION ALL SELECT x+1 FROM s WHERE x<1000 )
+    INSERT INTO fff(rowid, y) SELECT random() , newdoc() FROM s;
+  
+    WITH s(x) AS ( VALUES(1) UNION ALL SELECT x+1 FROM s WHERE x<1000 )
+    INSERT INTO fff(rowid, y) SELECT random() , newdoc() FROM s;
+  
+    WITH s(x) AS ( VALUES(1) UNION ALL SELECT x+1 FROM s WHERE x<1000 )
+    INSERT INTO fff(rowid, y) SELECT random() , newdoc() FROM s;
+  }
+
+  execsql $cfg
+  
+  proc lshuffle {in} {
+    set out [list]
+    while {[llength $in]>0} {
+      set idx [expr int(abs(rand()) * [llength $in])]
+      lappend out [lindex $in $idx]
+      set in [lreplace $in $idx $idx]
+    }
+    set out
+  }
+  
+  #dump fff
+  
+  set iTest 1
+  foreach ii [lshuffle [db eval {SELECT rowid FROM fff}]] {
+    #if {$iTest==1} { dump fff }
+    #if {$iTest==1} { breakpoint }
+    do_execsql_test 3.$tn.1.$iTest.$ii {
+      DELETE FROM fff WHERE rowid=$ii;
+    }
+    #if {$iTest==1} { dump fff }
+    if {($iTest % 20)==0} {
+      do_execsql_test 3.$tn.1.$iTest.$ii.ic {
+        INSERT INTO fff(fff) VALUES('integrity-check');
+      }
+    }
+    #if {$iTest==1} { break }
+    incr iTest
  }
-  #if {$iTest==1} { break }
-  incr iTest
 }

 #execsql_pp { SELECT rowid FROM fff('post') ORDER BY rowid ASC }
@@ -42,7 +42,7 @@ proc fts5_test_bothlist {cmd} {
 }
 sqlite3_fts5_create_function db fts5_test_bothlist fts5_test_bothlist

-proc fts5_rowid {cmd} { expr [$cmd xColumnText -1] }
+proc fts5_rowid {cmd} { expr [$cmd xRowid] }
 sqlite3_fts5_create_function db fts5_rowid fts5_rowid

 do_execsql_test 1.$tok.0.1 "
@@ -107,6 +107,12 @@
 # undef SQLITE_OMIT_UTF16 1
 #endif

+/**********************************************************************/
+/* SQLITE_S... */
+#ifndef SQLITE_STRICT_SUBTYPE
+# define SQLITE_STRICT_SUBTYPE 1
+#endif
+
 /**********************************************************************/
 /* SQLITE_T... */
 #ifndef SQLITE_TEMP_STORE
@@ -256,7 +256,7 @@ public final class CApi {
     sqlite3_bind_nio_buffer().
  */
  @Experimental
-  public static int sqlite3_bind_blob(
+  /*public*/ static int sqlite3_bind_blob(
    @NotNull sqlite3_stmt stmt, int ndx, @Nullable java.nio.ByteBuffer data,
    int begin, int n
  ){
@@ -269,7 +269,7 @@ public final class CApi {
     final two arguments.
  */
  @Experimental
-  public static int sqlite3_bind_blob(
+  /*public*/ static int sqlite3_bind_blob(
    @NotNull sqlite3_stmt stmt, int ndx, @Nullable java.nio.ByteBuffer data
  ){
    return sqlite3_bind_nio_buffer(stmt, ndx, data, 0, -1);
@@ -346,7 +346,7 @@ public final class CApi {
     @see https://docs.oracle.com/javase/8/docs/api/java/nio/Buffer.html
  */
  @Experimental
-  public static native int sqlite3_bind_nio_buffer(
+  /*public*/ static native int sqlite3_bind_nio_buffer(
    @NotNull sqlite3_stmt stmt, int ndx, @Nullable java.nio.ByteBuffer data,
    int beginPos, int howMany
  );
@@ -356,7 +356,7 @@ public final class CApi {
     contents, up to its limit() (as opposed to its capacity()).
  */
  @Experimental
-  public static int sqlite3_bind_nio_buffer(
+  /*public*/ static int sqlite3_bind_nio_buffer(
    @NotNull sqlite3_stmt stmt, int ndx, @Nullable java.nio.ByteBuffer data
  ){
    return sqlite3_bind_nio_buffer(stmt, ndx, data, 0, -1);
@@ -600,7 +600,7 @@ public final class CApi {
     sqlite3_blob_read() (0 on success).
  */
  @Experimental
-  public static int sqlite3_blob_read_nio_buffer(
+  /*public*/ static int sqlite3_blob_read_nio_buffer(
    @NotNull sqlite3_blob src, int srcOffset,
    @NotNull java.nio.ByteBuffer tgt, int tgtOffset, int howMany
  ){
@@ -624,7 +624,7 @@ public final class CApi {
     for any reason.
  */
  @Experimental
-  public static java.nio.ByteBuffer sqlite3_blob_read_nio_buffer(
+  /*public*/ static java.nio.ByteBuffer sqlite3_blob_read_nio_buffer(
    @NotNull sqlite3_blob src, int srcOffset, int howMany
  ){
    if( !JNI_SUPPORTS_NIO || src==null ) return null;
@@ -645,7 +645,7 @@ public final class CApi {
     Overload alias for sqlite3_blob_read_nio_buffer().
  */
  @Experimental
-  public static int sqlite3_blob_read(
+  /*public*/ static int sqlite3_blob_read(
    @NotNull sqlite3_blob src, int srcOffset,
    @NotNull java.nio.ByteBuffer tgt,
    int tgtOffset, int howMany
@@ -668,7 +668,7 @@ public final class CApi {
     the result of the underlying call to sqlite3_blob_read().
  */
  @Experimental
-  public static int sqlite3_blob_read(
+  /*public*/ static int sqlite3_blob_read(
    @NotNull sqlite3_blob src,
    @NotNull java.nio.ByteBuffer tgt
  ){
@@ -727,7 +727,7 @@ public final class CApi {
     returns the result of the underlying call to sqlite3_blob_read().
  */
  @Experimental
-  public static int sqlite3_blob_write_nio_buffer(
+  /*public*/ static int sqlite3_blob_write_nio_buffer(
    @NotNull sqlite3_blob tgt, int tgtOffset,
    @NotNull java.nio.ByteBuffer src,
    int srcOffset, int howMany
@@ -756,7 +756,7 @@ public final class CApi {
     of b.
  */
  @Experimental
-  public static int sqlite3_blob_write(
+  /*public*/ static int sqlite3_blob_write(
    @NotNull sqlite3_blob tgt, int tgtOffset,
    @NotNull java.nio.ByteBuffer src
  ){
@@ -770,7 +770,7 @@ public final class CApi {
     of tgt.
   */
  @Experimental
-  public static int sqlite3_blob_write(
+  /*public*/ static int sqlite3_blob_write(
    @NotNull sqlite3_blob tgt,
    @NotNull java.nio.ByteBuffer src
  ){
@@ -926,7 +926,7 @@ public final class CApi {
     would return null for the same inputs.
  */
  @Experimental
-  public static native java.nio.ByteBuffer sqlite3_column_nio_buffer(
+  /*public*/ static native java.nio.ByteBuffer sqlite3_column_nio_buffer(
    @NotNull sqlite3_stmt stmt, int ndx
  );

@@ -1848,7 +1848,7 @@ public final class CApi {
     then this function behaves like sqlite3_result_error_toobig().
  */
  @Experimental
-  public static native void sqlite3_result_nio_buffer(
+  /*public*/ static native void sqlite3_result_nio_buffer(
    @NotNull sqlite3_context cx, @Nullable java.nio.ByteBuffer blob,
    int begin, int n
  );
@@ -1858,7 +1858,7 @@ public final class CApi {
     as the result blob content.
  */
  @Experimental
-  public static void sqlite3_result_nio_buffer(
+  /*public*/ static void sqlite3_result_nio_buffer(
    @NotNull sqlite3_context cx, @Nullable java.nio.ByteBuffer blob
  ){
    sqlite3_result_nio_buffer(cx, blob, 0, -1);
@@ -1963,7 +1963,7 @@ public final class CApi {
     sqlite3_result_nio_buffer().
  */
  @Experimental
-  public static void sqlite3_result_blob(
+  /*public*/ static void sqlite3_result_blob(
    @NotNull sqlite3_context cx, @Nullable java.nio.ByteBuffer blob,
    int begin, int n
  ){
@@ -1975,7 +1975,7 @@ public final class CApi {
     sqlite3_result_nio_buffer().
  */
  @Experimental
-  public static void sqlite3_result_blob(
+  /*public*/ static void sqlite3_result_blob(
    @NotNull sqlite3_context cx, @Nullable java.nio.ByteBuffer blob
  ){
    sqlite3_result_nio_buffer(cx, blob);
@@ -2387,7 +2387,7 @@ public final class CApi {
     would return null for the same input.
  */
  @Experimental
-  public static native java.nio.ByteBuffer sqlite3_value_nio_buffer(
+  /*public*/ static native java.nio.ByteBuffer sqlite3_value_nio_buffer(
    @NotNull sqlite3_value v
  );

@@ -625,10 +625,20 @@ public class TesterFts5 {
      "SELECT fts5_columntext(ft, 1) FROM ft('x') ORDER BY rowid",
      "[x, x, x y z, x z, x y z, x]"
    );
-    do_execsql_test(db, 
-      "SELECT fts5_columntext(ft, 2) FROM ft('x') ORDER BY rowid",
-      "[null, null, null, null, null, null]"
-    );
+    boolean threw = false;
+    try{
+      /* columntext() used to return NULLs when given an out-of bounds column
+         but now results in a range error. */
+      do_execsql_test(db, 
+        "SELECT fts5_columntext(ft, 2) FROM ft('x') ORDER BY rowid",
+        "[null, null, null, null, null, null]"
+      );
+    }catch(Exception e){
+      threw = true;
+      affirm( e.getMessage().matches(".*column index out of range") );
+    }
+    affirm( threw );
+    threw = false;

    /* Test fts5_columntotalsize() */
    do_execsql_test(db, 
@@ -38,6 +38,24 @@ static void noopfunc(
  sqlite3_result_value(context, argv[0]);
 }

+/*
+** Implementation of the multitype_text() function.
+**
+** The function returns its argument.  The result will always have a
+** TEXT value.  But if the original input is numeric, it will also
+** have that numeric value.
+*/
+static void multitypeTextFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  assert( argc==1 );
+  (void)argc;
+  (void)sqlite3_value_text(argv[0]);
+  sqlite3_result_value(context, argv[0]);
+}
+
 #ifdef _WIN32
 __declspec(dllexport)
 #endif
@@ -64,5 +82,9 @@ int sqlite3_noop_init(
  rc = sqlite3_create_function(db, "noop_nd", 1,
                     SQLITE_UTF8,
                     0, noopfunc, 0, 0);
+  if( rc ) return rc;
+  rc = sqlite3_create_function(db, "multitype_text", 1,
+                     SQLITE_UTF8,
+                     0, multitypeTextFunc, 0, 0);
  return rc;
 }
@@ -26,9 +26,14 @@
 **
 **     .load ./randomjson
 **     SELECT random_json(1);
+**     SELECT random_json5(1);
 */
-#include "sqlite3ext.h"
-SQLITE_EXTENSION_INIT1
+#ifdef SQLITE_STATIC_RANDOMJSON
+#  include "sqlite3.h"
+#else
+#  include "sqlite3ext.h"
+   SQLITE_EXTENSION_INIT1
+#endif
 #include <assert.h>
 #include <string.h>
 #include <stdlib.h>
@@ -51,17 +56,18 @@ static unsigned int prngInt(Prng *p){
  return p->x ^ p->y;
 }

-static const char *azJsonAtoms[] = {
-  /* JSON                    /* JSON-5 */
+static char *azJsonAtoms[] = {
+  /* JSON                    JSON-5 */
  "0",                       "0",
  "1",                       "1",
  "-1",                      "-1",
  "2",                       "+2",
-  "3",                       "3",
-  "2.5",                     "2.5",
+  "3DDDD",                   "3DDDD",
+  "2.5DD",                   "2.5DD",
  "0.75",                    ".75",
  "-4.0e2",                  "-4.e2",
  "5.0e-3",                  "+5e-3",
+  "6.DDe+0DD",                "6.DDe+0DD",
  "0",                       "0x0",
  "512",                     "0x200",
  "256",                     "+0x100",
@@ -73,12 +79,14 @@ static const char *azJsonAtoms[] = {
  "-9.0e999",                "-Infinity",
  "9.0e999",                 "+Infinity",
  "null",                    "NaN",
-  "-0.0005123",              "-0.0005123",
+  "-0.0005DD",              "-0.0005DD",
  "4.35e-3",                 "+4.35e-3",
  "\"gem\\\"hay\"",          "\"gem\\\"hay\"",
  "\"icy'joy\"",             "'icy\\'joy\'",
  "\"keylog\"",              "\"key\\\nlog\"",
  "\"mix\\\\\\tnet\"",       "\"mix\\\\\\tnet\"",
+  "\"oat\\r\\n\"",           "\"oat\\r\\n\"",
+  "\"\\fpan\\b\"",           "\"\\fpan\\b\"",
  "{}",                      "{}",
  "[]",                      "[]",
  "[]",                      "[/*empty*/]",
@@ -89,19 +97,20 @@ static const char *azJsonAtoms[] = {
  "\"day\"",                 "\"day\"",
  "\"end\"",                 "'end'",
  "\"fly\"",                 "\"fly\"",
+  "\"\\u00XX\\u00XX\"",      "\"\\xXX\\xXX\"",
+  "\"y\\uXXXXz\"",           "\"y\\uXXXXz\"",
  "\"\"",                    "\"\"",
 };
-static const char *azJsonTemplate[] = {
+static char *azJsonTemplate[] = {
  /* JSON                                      JSON-5 */
-  "{\"a\":%,\"b\":%,\"c\":%}",                 "{a:%,b:%,c:%}",
+  "{\"a\":%,\"b\":%,\"cDD\":%}",               "{a:%,b:%,cDD:%}",
  "{\"a\":%,\"b\":%,\"c\":%,\"d\":%,\"e\":%}", "{a:%,b:%,c:%,d:%,e:%}",
-  "{\"a\":%,\"b\":%,\"c\":%,\"d\":%,\"\":%}",  "{a:%,b:%,c:%,d:%,\"\":%}",
+  "{\"a\":%,\"b\":%,\"c\":%,\"d\":%,\"\":%}",  "{a:%,b:%,c:%,d:%,'':%}",
  "{\"d\":%}",                                 "{d:%}",
  "{\"eeee\":%, \"ffff\":%}",                  "{eeee:% /*and*/, ffff:%}",
-  "{\"$g\":%,\"_h_\":%}",                      "{$g:%,_h_:%,}",
+  "{\"$g\":%,\"_h_\":%,\"a b c d\":%}",        "{$g:%,_h_:%,\"a b c d\":%}",
  "{\"x\":%,\n  \"y\":%}",                     "{\"x\":%,\n  \"y\":%}",
-  "{\"a b c d\":%,\"e\":%,\"f\":%,\"x\":%,\"y\":%}",
-                                           "{\"a b c d\":%,e:%,f:%,x:%,y:%}",
+  "{\"\\u00XX\":%,\"\\uXXXX\":%}",             "{\"\\xXX\":%,\"\\uXXXX\":%}",
  "{\"Z\":%}",                                 "{Z:%,}",
  "[%]",                                       "[%,]",
  "[%,%]",                                     "[%,%]",
@@ -122,15 +131,13 @@ static void jsonExpand(
  unsigned int r        /* Growth probability 0..1000.  0 means no growth */
 ){
  unsigned int i, j, k;
-  const char *z;
+  char *z;
+  char *zX;
  size_t n;
+  char zBuf[200];

  j = 0;
-  if( zSrc==0 ){
-    k = prngInt(p)%(count(azJsonTemplate)/2);
-    k = k*2 + eType;
-    zSrc = azJsonTemplate[k];
-  }
+  if( zSrc==0 ) zSrc = "%";
  if( strlen(zSrc)>=STRSZ/10 ) r = 0;
  for(i=0; zSrc[i]; i++){
    if( zSrc[i]!='%' ){
@@ -149,9 +156,36 @@ static void jsonExpand(
      z = azJsonTemplate[k];
    }
    n = strlen(z);
+    if( (zX = strstr(z,"XX"))!=0 ){
+      unsigned int y = prngInt(p);
+      if( (y&0xff)==((y>>8)&0xff) ) y += 0x100;
+      while( (y&0xff)==((y>>16)&0xff) || ((y>>8)&0xff)==((y>>16)&0xff) ){
+        y += 0x10000;
+      }
+      memcpy(zBuf, z, n+1);
+      z = zBuf;
+      zX = strstr(z,"XX");
+      while( zX!=0 ){
+        zX[0] = "0123456789abcdef"[y%16];  y /= 16;
+        zX[1] = "0123456789abcdef"[y%16];  y /= 16;
+        zX = strstr(zX, "XX");
+      }
+    }else if( (zX = strstr(z,"DD"))!=0 ){
+      unsigned int y = prngInt(p);
+      memcpy(zBuf, z, n+1);
+      z = zBuf;
+      zX = strstr(z,"DD");
+      while( zX!=0 ){
+        zX[0] = "0123456789"[y%10];  y /= 10;
+        zX[1] = "0123456789"[y%10];  y /= 10;
+        zX = strstr(zX, "DD");
+      }
+    }
+    assert( strstr(z, "XX")==0 );
+    assert( strstr(z, "DD")==0 );
    if( j+n<STRSZ ){
      memcpy(&zDest[j], z, n);
-      j += n;
+      j += (int)n;
    }
  }
  zDest[STRSZ-1] = 0;
@@ -178,7 +212,7 @@ static void randJsonFunc(
 }

 #ifdef _WIN32
-__declspec(dllexport)
+  __declspec(dllexport)
 #endif
 int sqlite3_randomjson_init(
  sqlite3 *db, 
@@ -188,7 +222,11 @@ int sqlite3_randomjson_init(
  static int cOne = 1;
  static int cZero = 0;
  int rc = SQLITE_OK;
+#ifdef SQLITE_STATIC_RANDOMJSON
+  (void)pApi;      /* Unused parameter */
+#else
  SQLITE_EXTENSION_INIT2(pApi);
+#endif
  (void)pzErrMsg;  /* Unused parameter */
  rc = sqlite3_create_function(db, "random_json", 1,
                   SQLITE_UTF8|SQLITE_INNOCUOUS|SQLITE_DETERMINISTIC,
@@ -103,16 +103,20 @@ SQLITE_EXTENSION_INIT1
 ** index is ix. The 0th member is given by smBase. The sequence members
 ** progress per ix increment by smStep.
 */
-static sqlite3_int64 genSeqMember(sqlite3_int64 smBase,
-                                  sqlite3_int64 smStep,
-                                  sqlite3_uint64 ix){
-  if( ix>=(sqlite3_uint64)LLONG_MAX ){
+static sqlite3_int64 genSeqMember(
+  sqlite3_int64 smBase,
+  sqlite3_int64 smStep,
+  sqlite3_uint64 ix
+){
+  static const sqlite3_uint64 mxI64 =
+      ((sqlite3_uint64)0x7fffffff)<<32 | 0xffffffff;
+  if( ix>=mxI64 ){
    /* Get ix into signed i64 range. */
-    ix -= (sqlite3_uint64)LLONG_MAX;
+    ix -= mxI64;
    /* With 2's complement ALU, this next can be 1 step, but is split into
     * 2 for UBSAN's satisfaction (and hypothetical 1's complement ALUs.) */
-    smBase += (LLONG_MAX/2) * smStep;
-    smBase += (LLONG_MAX - LLONG_MAX/2) * smStep;
+    smBase += (mxI64/2) * smStep;
+    smBase += (mxI64 - mxI64/2) * smStep;
  }
  /* Under UBSAN (or on 1's complement machines), must do this last term
   * in steps to avoid the dreaded (and harmless) signed multiply overlow. */
@@ -350,6 +350,20 @@ totype_atof_calc:
  return z>=zEnd && nDigits>0 && eValid && nonNum==0;
 }

+/* 
+** Convert a floating point value to an integer. Or, if this cannot be
+** done in a way that avoids 'outside the range of representable values' 
+** warnings from UBSAN, return 0.
+**
+** This function is a modified copy of internal SQLite function
+** sqlite3RealToI64().
+*/
+static sqlite3_int64 totypeDoubleToInt(double r){
+  if( r<-9223372036854774784.0 ) return 0;
+  if( r>+9223372036854774784.0 ) return 0;
+  return (sqlite3_int64)r;
+}
+
 /*
 ** tointeger(X):  If X is any value (integer, double, blob, or string) that
 ** can be losslessly converted into an integer, then make the conversion and
@@ -365,7 +379,7 @@ static void tointegerFunc(
  switch( sqlite3_value_type(argv[0]) ){
    case SQLITE_FLOAT: {
      double rVal = sqlite3_value_double(argv[0]);
-      sqlite3_int64 iVal = (sqlite3_int64)rVal;
+      sqlite3_int64 iVal = totypeDoubleToInt(rVal);
      if( rVal==(double)iVal ){
        sqlite3_result_int64(context, iVal);
      }
@@ -440,7 +454,7 @@ static void torealFunc(
    case SQLITE_INTEGER: {
      sqlite3_int64 iVal = sqlite3_value_int64(argv[0]);
      double rVal = (double)iVal;
-      if( iVal==(sqlite3_int64)rVal ){
+      if( iVal==totypeDoubleToInt(rVal) ){
        sqlite3_result_double(context, rVal);
      }
      break;
@@ -717,7 +717,7 @@ static int nodeAcquire(
  ** increase its reference count and return it.
  */
  if( (pNode = nodeHashLookup(pRtree, iNode))!=0 ){
-    if( pParent && pParent!=pNode->pParent ){
+    if( pParent && ALWAYS(pParent!=pNode->pParent) ){
      RTREE_IS_CORRUPT(pRtree);
      return SQLITE_CORRUPT_VTAB;
    }
@@ -3452,7 +3452,7 @@ static int rtreeSqlInit(
    }
    sqlite3_free(zSql);
  }
-  if( pRtree->nAux ){
+  if( pRtree->nAux && rc!=SQLITE_NOMEM ){
    pRtree->zReadAuxSql = sqlite3_mprintf(
       "SELECT * FROM \"%w\".\"%w_rowid\" WHERE rowid=?1",
       zDb, zPrefix);
@@ -4141,15 +4141,13 @@ static int rtreeCheckTable(
  check.zTab = zTab;

  /* Find the number of auxiliary columns */
-  if( check.rc==SQLITE_OK ){
-    pStmt = rtreeCheckPrepare(&check, "SELECT * FROM %Q.'%q_rowid'", zDb, zTab);
-    if( pStmt ){
-      nAux = sqlite3_column_count(pStmt) - 2;
-      sqlite3_finalize(pStmt);
-    }else 
-    if( check.rc!=SQLITE_NOMEM ){
-      check.rc = SQLITE_OK;
-    }
+  pStmt = rtreeCheckPrepare(&check, "SELECT * FROM %Q.'%q_rowid'", zDb, zTab);
+  if( pStmt ){
+    nAux = sqlite3_column_count(pStmt) - 2;
+    sqlite3_finalize(pStmt);
+  }else 
+  if( check.rc!=SQLITE_NOMEM ){
+    check.rc = SQLITE_OK;
  }

  /* Find number of dimensions in the rtree table. */
@@ -4204,6 +4202,7 @@ static int rtreeIntegrity(
  if( rc==SQLITE_OK && *pzErr ){
    *pzErr = sqlite3_mprintf("In RTree %s.%s:\n%z",
                 pRtree->zDb, pRtree->zName, *pzErr);
+    if( (*pzErr)==0 ) rc = SQLITE_NOMEM;
  }
  return rc;
 }
@@ -2348,9 +2348,7 @@ void sqlite3session_delete(sqlite3_session *pSession){
  ** associated hash-tables. */
  sessionDeleteTable(pSession, pSession->pTable);

-  /* Assert that all allocations have been freed and then free the 
-  ** session object itself. */
-  // assert( pSession->nMalloc==0 );
+  /* Free the session object. */
  sqlite3_free(pSession);
 }

@@ -1,3 +1,15 @@
+*********************************** NOTICE ************************************
+* This extension is deprecated. The SQLite developers do not maintain this    *
+* extension. At some point in the future, it might disappear from the source  *
+* tree.                                                                       *
+*                                                                             *
+* If you are using this extension and think it should be supported moving     *
+* forward, visit the SQLite Forum (https://sqlite.org/forum) and argue your   *
+* case there.                                                                 *
+*                                                                             *
+* This deprecation notice was added on 2024-01-22.                            *
+*******************************************************************************
+
 Activate the user authentication logic by including the
 ext/userauth/userauth.c source code file in the build and
 adding the -DSQLITE_USER_AUTHENTICATION compile-time option.
@@ -42,7 +42,10 @@
 # 1) Consolidate the code generation for sqlite3*.*js into a script
 #    which generates the makefile code, rather than using $(call) and
 #    $(eval), or at least centralize the setup of the numerous vars
-#    related to each build variant $(JS_BUILD_MODES).
+#    related to each build variant $(JS_BUILD_MODES). (Update: an
+#    external script was attempted but generating properly-escaped
+#    makefile code from within a shell script is even less legible
+#    than the $(eval) indirection going on in this file.)
 #
 default: all
 #default: quick
@@ -51,9 +54,39 @@ MAKEFILE := $(lastword $(MAKEFILE_LIST))
 CLEAN_FILES :=
 DISTCLEAN_FILES := ./--dummy--
 release: oz
-# JS_BUILD_MODES exists solely to reduce repetition in documentation
-# below.
+
+########################################################################
+# JS_BUILD_NAMES exists for documentation purposes only. It enumerates
+# the core build styles:
+#
+# - sqlite3 = canonical library build
+#
+# - sqlite3-wasmfs = WASMFS-capable library build
+#
+JS_BUILD_NAMES := sqlite3 sqlite3-wasmfs
+
+########################################################################
+# JS_BUILD_MODES exists for documentation purposes only. It enumerates
+# the various "flavors" of build, each of which requires slight
+# customization of the output:
+#
+# - vanilla = plain-vanilla JS for use in browsers. This is the
+#   canonical build mode.
+#
+# - esm = ES6 module, a.k.a. ESM, for use in browsers.
+#
+# - bundler-friendly = esm slightly tweaked for "bundler"
+#   tools. Bundlers are invariably based on node.js, so these builds
+#   are intended to be read at build-time by node.js but with a final
+#   target of browsers.
+#
+# - node = for use by node.js for node.js, as opposed to by node.js on
+#   behalf o browser-side code (use bundler-friendly for that). Note
+#   that persistent storage (OPFS) is not available in these builds.
+#
 JS_BUILD_MODES := vanilla esm bunder-friendly node
+
+########################################################################
 # Emscripten SDK home dir and related binaries...
 EMSDK_HOME ?= $(word 1,$(wildcard $(HOME)/emsdk $(HOME)/src/emsdk))
 emcc.bin ?= $(word 1,$(wildcard $(EMSDK_HOME)/upstream/emscripten/emcc) $(shell which emcc))
@@ -93,11 +126,14 @@ else
  maybe-wasm-strip = $(wasm-strip)
 endif

+########################################################################
+# dir.top = the top dir of the canonical build tree, where
+# sqlite3.[ch] live.
 dir.top := ../..
-# Reminder: some Emscripten flags require absolute paths but we want
-# relative paths for most stuff simply to reduce noise. The
-# $(abspath...) GNU make function can transform relative paths to
-# absolute.
+# Maintenance reminder: some Emscripten flags require absolute paths
+# but we want relative paths for most stuff simply to reduce
+# noise. The $(abspath...) GNU make function can transform relative
+# paths to absolute.
 dir.wasm := $(patsubst %/,%,$(dir $(MAKEFILE)))
 dir.api := api
 dir.jacc := jaccwabyt
@@ -143,12 +179,14 @@ endif
 # Set up sqlite3.c and sqlite3.h...
 #
 # To build with SEE (https://sqlite.org/see), either put sqlite3-see.c
-# in the top of this build tree or pass
-# sqlite3.c=PATH_TO_sqlite3-see.c to the build. Note that only
-# encryption modules with no 3rd-party dependencies will currently
-# work here: AES256-OFB, AES128-OFB, and AES128-CCM. Not
-# coincidentally, those 3 modules are included in the sqlite3-see.c
-# bundle.
+# in $(dir.top) or pass sqlite3.c=PATH_TO_sqlite3-see.c to the $(MAKE)
+# invocation. Note that only encryption modules with no 3rd-party
+# dependencies will currently work here: AES256-OFB, AES128-OFB, and
+# AES128-CCM. Not coincidentally, those 3 modules are included in the
+# sqlite3-see.c bundle. Note, however, that distributing an SEE build
+# of the WASM on a public site is in violation of the SEE license
+# because it effectively provides a usable copy of the SEE build to
+# all visitors.
 #
 # A custom sqlite3.c must not have any spaces in its name.
 # $(sqlite3.canonical.c) must point to the sqlite3.c in
@@ -193,6 +231,10 @@ SQLITE_OPT = \
 # can be used to find errant uses of sqlite3_js_vfs_create_file()
 # in client code.

+########################################################################@
+# It's important that sqlite3.h be built to completion before any
+# other parts of the build run, thus we use .NOTPARALLEL to disable
+# parallel build of that file and its dependants.
 .NOTPARALLEL: $(sqlite3.h)
 $(sqlite3.h):
 	$(MAKE) -C $(dir.top) sqlite3.c
@@ -242,6 +284,7 @@ ifneq (,$(sqlite3_wasm_extra_init.c))
  cflags.wasm_extra_init := -DSQLITE_WASM_EXTRA_INIT
 endif

+#########################################################################
 # bin.version-info = binary to output various sqlite3 version info for
 # embedding in the JS files and in building the distribution zip file.
 # It must NOT be in $(dir.tmp) because we need it to survive the
@@ -251,11 +294,12 @@ bin.version-info := $(dir.top)/version-info
 $(bin.version-info): $(dir.tool)/version-info.c $(sqlite3.h) $(dir.top)/Makefile
 	$(MAKE) -C $(dir.top) version-info

+#########################################################################
 # bin.stripcomments is used for stripping C/C++-style comments from JS
 # files. The JS files contain large chunks of documentation which we
 # don't need for all builds. That app's -k flag is of particular
 # importance here, as it allows us to retain the opening comment
-# blocks, which contain the license header and version info.
+# block(s), which contain the license header and version info.
 bin.stripccomments := $(dir.tool)/stripccomments
 $(bin.stripccomments): $(bin.stripccomments).c $(MAKEFILE)
 	$(CC) -o $@ $<
@@ -287,6 +331,9 @@ DISTCLEAN_FILES += $(bin.stripccomments)
 # c-pp.c was written specifically for the sqlite project's JavaScript
 # builds but is maintained as a standalone project:
 # https://fossil.wanderinghorse.net/r/c-pp
+#
+# Note that the SQLITE_... build flags used here have NO EFFECT on the
+# JS/WASM build. They are solely for use with $(bin.c-pp) itself.
 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) \
@@ -347,6 +394,7 @@ emcc_opt_full := $(emcc_opt) -g3
 # -Oz when small deliverable size is a priority.
 ########################################################################

+########################################################################
 # EXPORTED_FUNCTIONS.* = files for use with Emscripten's
 # -sEXPORTED_FUNCTION flag.
 EXPORTED_FUNCTIONS.api.main := $(abspath $(dir.api)/EXPORTED_FUNCTIONS.sqlite3-api)
@@ -358,6 +406,7 @@ EXPORTED_FUNCTIONS.api := $(dir.tmp)/EXPORTED_FUNCTIONS.api
 $(EXPORTED_FUNCTIONS.api): $(EXPORTED_FUNCTIONS.api.in) $(sqlite3.c) $(MAKEFILE)
 	cat $(EXPORTED_FUNCTIONS.api.in) > $@

+########################################################################
 # sqlite3-license-version.js = generated JS file with the license
 # header and version info.
 sqlite3-license-version.js := $(dir.tmp)/sqlite3-license-version.js
@@ -370,20 +419,37 @@ sqlite3-api-build-version.js := $(dir.tmp)/sqlite3-api-build-version.js
 # sqlite3-api.jses = the list of JS files which make up
 # $(sqlite3-api.js.in), in the order they need to be assembled.
 sqlite3-api.jses := $(sqlite3-license-version.js)
+# sqlite3-api-prologue.js: initial boostrapping bits:
 sqlite3-api.jses += $(dir.api)/sqlite3-api-prologue.js
+# whwhasm.js and jaccwabyt.js: Low-level utils, mostly replacing
+# Emscripten glue:
 sqlite3-api.jses += $(dir.common)/whwasmutil.js
 sqlite3-api.jses += $(dir.jacc)/jaccwabyt.js
+# sqlite3-api-glue.js Glues the previous part together:
 sqlite3-api.jses += $(dir.api)/sqlite3-api-glue.js
+# $(sqlite3-api-build-version.js) = library version info
 sqlite3-api.jses += $(sqlite3-api-build-version.js)
+# sqlite3-api-oo1.js = the oo1 API:
 sqlite3-api.jses += $(dir.api)/sqlite3-api-oo1.js
+# sqlite3-api-worker.js = the Worker1 API:
 sqlite3-api.jses += $(dir.api)/sqlite3-api-worker1.js
-sqlite3-api.jses += $(dir.api)/sqlite3-v-helper.js
+# sqlite3-vfs-helper = helper APIs for VFSes:
+sqlite3-api.jses += $(dir.api)/sqlite3-vfs-helper.c-pp.js
+# sqlite3-vtab-helper = helper APIs for VTABLEs:
+sqlite3-api.jses += $(dir.api)/sqlite3-vtab-helper.c-pp.js
+# sqlite3-vfs-opfs.c-pp.js = the first OPFS VFS:
 sqlite3-api.jses += $(dir.api)/sqlite3-vfs-opfs.c-pp.js
+# sqlite3-vfs-opfs-sahpool.c-pp.js = the second OPFS VFS:
 sqlite3-api.jses += $(dir.api)/sqlite3-vfs-opfs-sahpool.c-pp.js
+# sqlite3-api-cleanup.js = "finalizes" the build and cleans up
+# any extraneous global symbols which are needed temporarily
+# by the previous files.
 sqlite3-api.jses += $(dir.api)/sqlite3-api-cleanup.js

+########################################################################
 # SOAP.js is an external API file which is part of our distribution
-# but not part of the sqlite3-api.js amalgamation.
+# but not part of the sqlite3-api.js amalgamation. It's a component of
+# the first OPFS VFS and necessarily an external file.
 SOAP.js := $(dir.api)/sqlite3-opfs-async-proxy.js
 SOAP.js.bld := $(dir.dout)/$(notdir $(SOAP.js))
 sqlite3-api.ext.jses += $(SOAP.js.bld)
@@ -438,7 +504,9 @@ endif
 # emcc flags for .c/.o.
 emcc.cflags :=
 emcc.cflags += -std=c99 -fPIC
-# -------------^^^^^^^^ we need c99 for $(sqlite3-wasm.c).
+# -------------^^^^^^^^ we need c99 for $(sqlite3-wasm.c), primarily
+# for variadic macros and snprintf() to implement
+# sqlite3_wasm_enum_json().
 emcc.cflags += -I. -I$(dir.top)
 ########################################################################
 # emcc flags specific to building .js/.wasm files...
@@ -459,14 +527,16 @@ emcc.jsflags += -sIMPORTED_MEMORY
 emcc.jsflags += -sSTRICT_JS=0
 # STRICT_JS disabled due to:
 #   https://github.com/emscripten-core/emscripten/issues/18610
-# TL;DR: does not work with MODULARIZE or EXPORT_ES6 as of version 3.1.31.
+# TL;DR: does not work with MODULARIZE or EXPORT_ES6 as of version
+# 3.1.31.  The fix for that in newer emcc's is to throw a built-time
+# error if STRICT_JS is used together with those options.

 # -sENVIRONMENT values for the various build modes:
 emcc.environment.vanilla := web,worker
 emcc.environment.bundler-friendly := $(emcc.environment.vanilla)
 emcc.environment.esm := $(emcc.environment.vanilla)
 emcc.environment.node := node
-# Note that adding "node" to the list for the other builds causes
+# Note that adding ",node" to the list for the other builds causes
 # Emscripten to generate code which confuses node: it cannot reliably
 # determine whether the build is for a browser or for node.

@@ -518,13 +588,14 @@ emcc.jsflags += -sSTACK_SIZE=512KB
 # extern-post-js.js. However...  using a temporary symbol name here
 # and then adding sqlite3InitModule() ourselves results in 2 global
 # symbols: we cannot "delete" the Emscripten-defined
-# $(sqlite3.js.init-func) because it's declared with "var".
+# $(sqlite3.js.init-func) from vanilla builds (as opposed to ESM
+# builds) because it's declared with "var".
 sqlite3.js.init-func := sqlite3InitModule
 emcc.jsflags += -sEXPORT_NAME=$(sqlite3.js.init-func)
 emcc.jsflags += -sGLOBAL_BASE=4096 # HYPOTHETICALLY keep func table indexes from overlapping w/ heap addr.
 #emcc.jsflags += -sSTRICT # fails due to missing __syscall_...()
 #emcc.jsflags += -sALLOW_UNIMPLEMENTED_SYSCALLS
-#emcc.jsflags += -sFILESYSTEM=0 # only for experimentation. sqlite3 needs the FS API
+#emcc.jsflags += -sFILESYSTEM=0 # only for experimentation. fiddle needs the FS API
 #emcc.jsflags += -sABORTING_MALLOC # only for experimentation
 emcc.jsflags += -sALLOW_TABLE_GROWTH
 # ^^^^ -sALLOW_TABLE_GROWTH is required for installing new SQL UDFs
@@ -568,15 +639,25 @@ emcc.jsflags += -sLLD_REPORT_UNDEFINED
 # -g3 debugging info, _huge_.
 ########################################################################

+########################################################################
+# $(sqlite3-api-build-version.js) injects the build version info into
+# the bundle in JSON form.
 $(sqlite3-api-build-version.js): $(bin.version-info) $(MAKEFILE)
 	@echo "Making $@..."
 	@{ \
-  echo 'globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){'; \
-	echo -n '  sqlite3.version = '; \
-  $(bin.version-info) --json; \
-  echo ';'; \
-	echo '});'; \
+    echo 'globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){'; \
+    echo -n '  sqlite3.version = '; \
+    $(bin.version-info) --json; \
+    echo ';'; \
+    echo '});'; \
  } > $@
+
+########################################################################
+# $(sqlite3-license-version.js) contains the license header and
+# in-comment build version info.
+#
+# Maintenance reminder: there are awk binaries out there which do not
+# support -e SCRIPT.
 $(sqlite3-license-version.js): $(sqlite3.h) $(sqlite3-license-version-header.js) \
  $(MAKEFILE)
 	@echo "Making $@..."; { \
@@ -584,8 +665,8 @@ $(sqlite3-license-version.js): $(sqlite3.h) $(sqlite3-license-version-header.js)
    echo '/*'; \
    echo '** This code was built from sqlite3 version...'; \
    echo "**"; \
-    awk -e '/define SQLITE_VERSION/{$$1=""; print "**" $$0}' \
-        -e '/define SQLITE_SOURCE_ID/{$$1=""; print "**" $$0}' $(sqlite3.h); \
+    awk '/define SQLITE_VERSION/{$$1=""; print "**" $$0}' $(sqlite3.h); \
+    awk '/define SQLITE_SOURCE_ID/{$$1=""; print "**" $$0}' $(sqlite3.h); \
    echo "**"; \
    echo "** Using the Emscripten SDK version $(emcc.version)."; \
    echo '*/'; \
@@ -594,7 +675,11 @@ $(sqlite3-license-version.js): $(sqlite3.h) $(sqlite3-license-version-header.js)
 ########################################################################
 # --post-js and --pre-js are emcc flags we use to append/prepend JS to
 # the generated emscripten module file. These rules set up the core
-# pre/post files for use by the various builds.
+# pre/post files for use by the various builds. --pre-js is used to
+# inject code which needs to run as part of the pre-WASM-load phase.
+# --post-js injects code which runs after the WASM module is loaded
+# and includes the entirety of the library plus some
+# Emscripten-specific post-bootstrapping code.
 pre-js.js.in := $(dir.api)/pre-js.c-pp.js
 post-js.js.in := $(dir.tmp)/post-js.c-pp.js
 post-jses.js := \
@@ -612,18 +697,26 @@ $(post-js.js.in): $(post-jses.js) $(MAKEFILE)

 ########################################################################
 # call-make-pre-post is a $(call)able which creates rules for
-# pre-js-$(1)-$(2).js. $1 = the base name of the JS file on whose
-# behalf this pre-js is for (one of: sqlite3, sqlite3-wasmfs). $2 is
+# pre-js.$(1)-$(2).js. $1 = the base name of the JS file on whose
+# behalf this pre-js is for (one of: $(JS_BUILD_NAMES)). $2 is
 # the build mode: one of $(JS_BUILD_MODES).  This sets up
 # --[extern-][pre/post]-js flags in $(pre-post-$(1)-$(2).flags) and
 # dependencies in $(pre-post-$(1)-$(2).deps). The resulting files get
 # filtered using $(C-PP.FILTER). Any flags necessary for such
 # filtering need to be set in $(c-pp.D.$(1)-$(2)) before $(call)ing
 # this.
+#
+# Maintenance note: a shell script was written to generate these rules
+# with the hope that it would make them more legible and maintainable,
+# but embedding makefile code in another language makes it even less
+# legible than having the level of $(eval) indirection which we have
+# here.
 define call-make-pre-post
 pre-post-$(1)-$(2).flags ?=
-pre-js.js.$(1)-$(2) := $$(dir.tmp)/pre-js.$(1)-$(2).intermediary.js
-$$(eval $$(call C-PP.FILTER,$$(pre-js.js.in),$$(pre-js.js.$(1)-$(2)),$$(c-pp.D.$(1)-$(2))))
+pre-js.js.$(1)-$(2).intermediary := $$(dir.tmp)/pre-js.$(1)-$(2).intermediary.js
+pre-js.js.$(1)-$(2) := $$(dir.tmp)/pre-js.$(1)-$(2).js
+#$$(error $$(pre-js.js.$(1)-$(2).intermediary) $$(pre-js.js.$(1)-$(2)))
+$$(eval $$(call C-PP.FILTER,$$(pre-js.js.in),$$(pre-js.js.$(1)-$(2).intermediary),$$(c-pp.D.$(1)-$(2))))
 post-js.js.$(1)-$(2) := $$(dir.tmp)/post-js.$(1)-$(2).js
 $$(eval $$(call C-PP.FILTER,$$(post-js.js.in),$$(post-js.js.$(1)-$(2)),$$(c-pp.D.$(1)-$(2))))
 extern-post-js.js.$(1)-$(2) := $$(dir.tmp)/extern-post-js.$(1)-$(2).js
@@ -634,8 +727,8 @@ pre-post-common.flags.$(1)-$(2) := \
  --extern-post-js=$$(extern-post-js.js.$(1)-$(2))
 pre-post-jses.$(1)-$(2).deps := $$(pre-post-jses.deps.common) \
  $$(post-js.js.$(1)-$(2)) $$(extern-post-js.js.$(1)-$(2))
-$$(dir.tmp)/pre-js-$(1)-$(2).js: $$(pre-js.js.$(1)-$(2)) $$(MAKEFILE)
-	cp $$(pre-js.js.$(1)-$(2)) $$@
+$$(pre-js.js.$(1)-$(2)): $$(pre-js.js.$(1)-$(2).intermediary) $$(MAKEFILE)
+	cp $$(pre-js.js.$(1)-$(2).intermediary) $$@
 	@if [ sqlite3-wasmfs = $(1) ]; then \
 		echo "delete Module[xNameOfInstantiateWasm] /*for WASMFS build*/;"; \
 	elif [ sqlite3 != $(1) ]; then \
@@ -643,10 +736,10 @@ $$(dir.tmp)/pre-js-$(1)-$(2).js: $$(pre-js.js.$(1)-$(2)) $$(MAKEFILE)
 	fi >> $$@
 pre-post-$(1)-$(2).deps := \
  $$(pre-post-jses.$(1)-$(2).deps) \
-  $$(dir.tmp)/pre-js-$(1)-$(2).js
+  $$(dir.tmp)/pre-js.$(1)-$(2).js
 pre-post-$(1)-$(2).flags += \
  $$(pre-post-common.flags.$(1)-$(2)) \
-  --pre-js=$$(dir.tmp)/pre-js-$(1)-$(2).js
+  --pre-js=$$(dir.tmp)/pre-js.$(1)-$(2).js
 endef
 # /post-js and pre-js
 ########################################################################
@@ -683,8 +776,8 @@ sqlite3-wasmfs.cfiles := $(sqlite3-wasm.cfiles)
 # Upstream RFE:
 # https://github.com/emscripten-core/emscripten/issues/18237
 #
-# Maintenance reminder: Mac sed works differently than GNU sed, so
-# don't use sed for this.
+# Maintenance reminder: Mac sed works differently than GNU sed, so we
+# use awk instead of sed for this.
 define SQLITE3.xJS.ESM-EXPORT-DEFAULT
 if [ x1 = x$(1) ]; then \
 		echo "Fragile workaround for emscripten/issues/18237. See SQLITE3.xJS.RECIPE."; \
@@ -700,6 +793,7 @@ if [ x1 = x$(1) ]; then \
 fi
 endef

+########################################################################
 # extern-post-js* and extern-pre-js* are files for use with
 # Emscripten's --extern-pre-js and --extern-post-js flags.
 extern-pre-js.js := $(dir.api)/extern-pre-js.js
@@ -711,11 +805,12 @@ pre-post-common.flags := \
 # pre-post-jses.deps.* = a list of dependencies for the
 # --[extern-][pre/post]-js files.
 pre-post-jses.deps.common := $(extern-pre-js.js) $(sqlite3-license-version.js)
+
 ########################################################################
 # SETUP_LIB_BUILD_MODE is a $(call)'able which sets up numerous pieces
 # for one of the build modes.
 #
-# $1 = one of: sqlite3, sqlite3-wasmfs
+# $1 = one of: $(JS_BUILD_NAMES)
 # $2 = build mode name: one of $(JS_BUILD_MODES)
 # $3 = 1 for ESM build mode, else 0
 # $4 = resulting sqlite-api JS/MJS file
@@ -726,7 +821,8 @@ pre-post-jses.deps.common := $(extern-pre-js.js) $(sqlite3-license-version.js)
 # Maintenance reminder: be careful not to introduce spaces around args
 # ($1, $2), otherwise string concatenation will malfunction.
 #
-# emcc.environment.$(2) must be set to a value for the -sENVIRONMENT flag.
+# emcc.environment.$(2) must be set to a value for emcc's
+# -sENVIRONMENT flag.
 #
 # $(cflags.$(1)) and $(cflags.$(1).$(2)) may be defined to append
 # CFLAGS to a given build mode.
@@ -781,8 +877,7 @@ sqlite3-node.mjs := $(dir.dout)/sqlite3-node.mjs
 $(eval $(call SETUP_LIB_BUILD_MODE,sqlite3,vanilla,0,\
         $(sqlite3-api.js), $(sqlite3.js)))
 $(eval $(call SETUP_LIB_BUILD_MODE,sqlite3,esm,1,\
-         $(sqlite3-api.mjs), $(sqlite3.mjs), \
-       -Dtarget=es6-module, -sEXPORT_ES6 -sUSE_ES6_IMPORT_META))
+         $(sqlite3-api.mjs), $(sqlite3.mjs), -Dtarget=es6-module))
 $(eval $(call SETUP_LIB_BUILD_MODE,sqlite3,bundler-friendly,1,\
       $(sqlite3-api-bundler-friendly.mjs),$(sqlite3-bundler-friendly.mjs),\
       $(c-pp.D.sqlite3-esm) -Dtarget=es6-bundler-friendly))
@@ -798,7 +893,7 @@ $(eval $(call SETUP_LIB_BUILD_MODE,sqlite3,node,1,\
 # -Dtarget=es6-module -Dtarget=es6-bundler-friendly: intended for
 #    "bundler-friendly" ESM module build. These have some restrictions
 #    on how URL() objects are constructed in some contexts: URLs which
-#    refer to files which are part of this project must be references
+#    refer to files which are part of this project must be referenced
 #    as string literals so that bundlers' static-analysis tools can
 #    find those files and include them in their bundles.
 #
@@ -1087,4 +1182,4 @@ endif

 # Run local web server for the test/demo pages.
 httpd:
-	althttpd -max-age 1 -enable-sab -page index.html
+	althttpd -max-age 1 -enable-sab 1 -page index.html
@@ -174,11 +174,17 @@ const Rx = newObj({
  squiggly: /[{}]/
 });

+
+
 const Util = newObj({
  toss,

-  unlink: function(fn){
-    return 0==sqlite3.wasm.sqlite3_wasm_vfs_unlink(0,fn);
+  unlink: function f(fn){
+    if(!f.unlink){
+      f.unlink = sqlite3.wasm.xWrap('sqlite3__wasm_vfs_unlink','int',
+                                    ['*','string']);
+    }
+    return 0==f.unlink(0,fn);
  },

  argvToString: (list)=>{
@@ -197,7 +203,7 @@ const Util = newObj({

  utf8Encode: (str)=>__utf8Encoder.encode(str),

-  strglob: sqlite3.wasm.xWrap('sqlite3_wasm_SQLTester_strglob','int',
+  strglob: sqlite3.wasm.xWrap('sqlite3__wasm_SQLTester_strglob','int',
                              ['string','string'])
 })/*Util*/;

@@ -78,10 +78,12 @@ browser client:
      a Promise-based interface into the Worker #1 API. This is
      a far user-friendlier way to interface with databases running
      in a Worker thread.
- **`sqlite3-v-helper.js`**\  
-  Installs `sqlite3.vfs` and `sqlite3.vtab`, namespaces which contain
-  helpers for use by downstream code which creates `sqlite3_vfs`
-  and `sqlite3_module` implementations.
+- **`sqlite3-vfs-helper.js`**\  
+  Installs the `sqlite3.vfs` namespace, which contain helpers for use
+  by downstream code which creates `sqlite3_vfs` implementations.
+- **`sqlite3-vtab-helper.js`**\  
+  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
@@ -19,8 +19,10 @@ Module.postRun.push(function(Module/*the Emscripten-style module object*/){
     - sqlite3-api-glue.js      => glues previous parts together
     - sqlite3-api-oo.js        => SQLite3 OO API #1
     - sqlite3-api-worker1.js   => Worker-based API
-     - sqlite3-vfs-helper.js    => Internal-use utilities for...
-     - sqlite3-vfs-opfs.js      => OPFS VFS
+     - 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-sahpool.c-pp.js => OPFS SAHPool VFS
     - sqlite3-api-cleanup.js   => final API cleanup
     - post-js-footer.js        => closes this postRun() function
  */
@@ -14,7 +14,8 @@
  previous steps of the sqlite3-api.js bootstrapping process:
  sqlite3-api-prologue.js, whwasmutil.js, and jaccwabyt.js. It
  initializes the main API pieces so that the downstream components
-  (e.g. sqlite3-api-oo1.js) have all that they need.
+  (e.g. sqlite3-api-oo1.js) have all of the infrastructure that they
+  need.
 */
 globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
  'use strict';
@@ -329,6 +330,14 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
  }

  if(wasm.exports.sqlite3_activate_see instanceof Function){
+    /**
+       This code is capable of using an SEE build but note that an SEE
+       WASM build is generally incompatible with SEE's license
+       conditions. It is permitted for use internally in organizations
+       which have licensed SEE, but not for public sites because
+       exposing an SEE build of sqlite3.wasm effectively provides all
+       clients with a working copy of the commercial SEE code.
+    */
    wasm.bindingSignatures.push(
      ["sqlite3_key", "int", "sqlite3*", "string", "int"],
      ["sqlite3_key_v2","int","sqlite3*","string","*","int"],
@@ -341,6 +350,8 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
     Functions which require BigInt (int64) support are separated from
     the others because we need to conditionally bind them or apply
     dummy impls, depending on the capabilities of the environment.
+     (That said: we never actually build without BigInt support,
+     and such builds are untested.)

     Note that not all of these functions directly require int64
     but are only for use with APIs which require int64. For example,
@@ -359,7 +370,10 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
    /* Careful! Short version: de/serialize() are problematic because they
       might use a different allocator than the user for managing the
       deserialized block. de/serialize() are ONLY safe to use with
-       sqlite3_malloc(), sqlite3_free(), and its 64-bit variants. */,
+       sqlite3_malloc(), sqlite3_free(), and its 64-bit variants. Because
+       of this, the canonical builds of sqlite3.wasm/js guarantee that
+       sqlite3.wasm.alloc() and friends use those allocators. Custom builds
+       may not guarantee that, however. */,
    ["sqlite3_drop_modules", "int", ["sqlite3*", "**"]],
    ["sqlite3_last_insert_rowid", "i64", ["sqlite3*"]],
    ["sqlite3_malloc64", "*","i64"],
@@ -422,8 +436,6 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){

  // Add session/changeset APIs...
  if(wasm.bigIntEnabled && !!wasm.exports.sqlite3changegroup_add){
-    /* ACHTUNG: 2022-12-23: the session/changeset API bindings are
-       COMPLETELY UNTESTED. */
    /**
       FuncPtrAdapter options for session-related callbacks with the
       native signature "i(ps)". This proxy converts the 2nd argument
@@ -601,16 +613,21 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
  /**
     Functions which are intended solely for API-internal use by the
     WASM components, not client code. These get installed into
-     sqlite3.wasm. Some of them get exposed to clients via variants
-     named sqlite3_js_...().
+     sqlite3.util. Some of them get exposed to clients via variants
+     in sqlite3_js_...().
+
+     2024-01-11: these were renamed, with two underscores in the
+     prefix, to ensure that clients do not accidentally depend on
+     them.  They have always been documented as internal-use-only, so
+     no clients "should" be depending on the old names.
  */
-  wasm.bindingSignatures.wasm = [
-    ["sqlite3_wasm_db_reset", "int", "sqlite3*"],
-    ["sqlite3_wasm_db_vfs", "sqlite3_vfs*", "sqlite3*","string"],
-    ["sqlite3_wasm_vfs_create_file", "int",
+  wasm.bindingSignatures.wasmInternal = [
+    ["sqlite3__wasm_db_reset", "int", "sqlite3*"],
+    ["sqlite3__wasm_db_vfs", "sqlite3_vfs*", "sqlite3*","string"],
+    ["sqlite3__wasm_vfs_create_file", "int",
     "sqlite3_vfs*","string","*", "int"],
-    ["sqlite3_wasm_posix_create_file", "int", "string","*", "int"],
-    ["sqlite3_wasm_vfs_unlink", "int", "sqlite3_vfs*","string"]
+    ["sqlite3__wasm_posix_create_file", "int", "string","*", "int"],
+    ["sqlite3__wasm_vfs_unlink", "int", "sqlite3_vfs*","string"]
  ];

  /**
@@ -652,7 +669,7 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){

       Use case: sqlite3_bind_pointer() and sqlite3_result_pointer()
       call for "a static string and preferably a string
-       literal". This converter is used to ensure that the string
+       literal." This converter is used to ensure that the string
       value seen by those functions is long-lived and behaves as they
       need it to.
    */
@@ -674,14 +691,15 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
       `sqlite3_vfs*` via capi.sqlite3_vfs.pointer.
    */
    const __xArgPtr = wasm.xWrap.argAdapter('*');
-    const nilType = function(){}/*a class no value can ever be an instance of*/;
+    const nilType = function(){
+      /*a class which no value can ever be an instance of*/
+    };
    wasm.xWrap.argAdapter('sqlite3_filename', __xArgPtr)
    ('sqlite3_context*', __xArgPtr)
    ('sqlite3_value*', __xArgPtr)
    ('void*', __xArgPtr)
    ('sqlite3_changegroup*', __xArgPtr)
    ('sqlite3_changeset_iter*', __xArgPtr)
-    //('sqlite3_rebaser*', __xArgPtr)
    ('sqlite3_session*', __xArgPtr)
    ('sqlite3_stmt*', (v)=>
      __xArgPtr((v instanceof (sqlite3?.oo1?.Stmt || nilType))
@@ -742,8 +760,8 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
    for(const e of wasm.bindingSignatures){
      capi[e[0]] = wasm.xWrap.apply(null, e);
    }
-    for(const e of wasm.bindingSignatures.wasm){
-      wasm[e[0]] = wasm.xWrap.apply(null, e);
+    for(const e of wasm.bindingSignatures.wasmInternal){
+      util[e[0]] = wasm.xWrap.apply(null, e);
    }

    /* For C API functions which cannot work properly unless
@@ -765,9 +783,9 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
       implicitly making it part of the public interface. */
    delete wasm.bindingSignatures;

-    if(wasm.exports.sqlite3_wasm_db_error){
+    if(wasm.exports.sqlite3__wasm_db_error){
      const __db_err = wasm.xWrap(
-        'sqlite3_wasm_db_error', 'int', 'sqlite3*', 'int', 'string'
+        'sqlite3__wasm_db_error', 'int', 'sqlite3*', 'int', 'string'
      );
      /**
         Sets the given db's error state. Accepts:
@@ -785,7 +803,7 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
         Returns the resulting code. Pass (pDb,0,0) to clear the error
         state.
       */
-      util.sqlite3_wasm_db_error = function(pDb, resultCode, message){
+      util.sqlite3__wasm_db_error = function(pDb, resultCode, message){
        if(resultCode instanceof sqlite3.WasmAllocError){
          resultCode = capi.SQLITE_NOMEM;
          message = 0 /*avoid allocating message string*/;
@@ -796,17 +814,17 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
        return pDb ? __db_err(pDb, resultCode, message) : resultCode;
      };
    }else{
-      util.sqlite3_wasm_db_error = function(pDb,errCode,msg){
-        console.warn("sqlite3_wasm_db_error() is not exported.",arguments);
+      util.sqlite3__wasm_db_error = function(pDb,errCode,msg){
+        console.warn("sqlite3__wasm_db_error() is not exported.",arguments);
        return errCode;
      };
    }
  }/*xWrap() bindings*/

  {/* Import C-level constants and structs... */
-    const cJson = wasm.xCall('sqlite3_wasm_enum_json');
+    const cJson = wasm.xCall('sqlite3__wasm_enum_json');
    if(!cJson){
-      toss("Maintenance required: increase sqlite3_wasm_enum_json()'s",
+      toss("Maintenance required: increase sqlite3__wasm_enum_json()'s",
           "static buffer size!");
    }
    //console.debug('wasm.ctype length =',wasm.cstrlen(cJson));
@@ -877,7 +895,7 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
        delete capi[k];
      }
      capi.sqlite3_vtab_config = wasm.xWrap(
-        'sqlite3_wasm_vtab_config','int',[
+        'sqlite3__wasm_vtab_config','int',[
          'sqlite3*', 'int', 'int']
      );
    }/* end vtab-related setup */
@@ -889,7 +907,7 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
     consistency with non-special-case wrappings.
  */
  const __dbArgcMismatch = (pDb,f,n)=>{
-    return util.sqlite3_wasm_db_error(pDb, capi.SQLITE_MISUSE,
+    return util.sqlite3__wasm_db_error(pDb, capi.SQLITE_MISUSE,
                                      f+"() requires "+n+" argument"+
                                      (1===n?"":'s')+".");
  };
@@ -898,7 +916,7 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
      argument and require SQLITE_UTF8.  Sets the db error code to
      SQLITE_FORMAT and returns that code. */
  const __errEncoding = (pDb)=>{
-    return util.sqlite3_wasm_db_error(
+    return util.sqlite3__wasm_db_error(
      pDb, capi.SQLITE_FORMAT, "SQLITE_UTF8 is the only supported encoding."
    );
  };
@@ -1128,7 +1146,7 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
        }
        return rc;
      }catch(e){
-        return util.sqlite3_wasm_db_error(pDb, e);
+        return util.sqlite3__wasm_db_error(pDb, e);
      }
    };

@@ -1254,7 +1272,7 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
        return rc;
      }catch(e){
        console.error("sqlite3_create_function_v2() setup threw:",e);
-        return util.sqlite3_wasm_db_error(pDb, e, "Creation of UDF threw: "+e);
+        return util.sqlite3__wasm_db_error(pDb, e, "Creation of UDF threw: "+e);
      }
    };

@@ -1299,7 +1317,7 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
        return rc;
      }catch(e){
        console.error("sqlite3_create_window_function() setup threw:",e);
-        return util.sqlite3_wasm_db_error(pDb, e, "Creation of UDF threw: "+e);
+        return util.sqlite3__wasm_db_error(pDb, e, "Creation of UDF threw: "+e);
      }
    };
    /**
@@ -1394,7 +1412,7 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
          case 'string': return __prepare.basic(pDb, xSql, xSqlLen, prepFlags, ppStmt, null);
          case 'number': return __prepare.full(pDb, xSql, xSqlLen, prepFlags, ppStmt, pzTail);
          default:
-            return util.sqlite3_wasm_db_error(
+            return util.sqlite3__wasm_db_error(
              pDb, capi.SQLITE_MISUSE,
              "Invalid SQL argument type for sqlite3_prepare_v2/v3()."
            );
@@ -1438,7 +1456,7 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
        }else if('string'===typeof text){
          [p, n] = wasm.allocCString(text);
        }else{
-          return util.sqlite3_wasm_db_error(
+          return util.sqlite3__wasm_db_error(
            capi.sqlite3_db_handle(pStmt), capi.SQLITE_MISUSE,
            "Invalid 3rd argument type for sqlite3_bind_text()."
          );
@@ -1446,7 +1464,7 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
        return __bindText(pStmt, iCol, p, n, capi.SQLITE_WASM_DEALLOC);
      }catch(e){
        wasm.dealloc(p);
-        return util.sqlite3_wasm_db_error(
+        return util.sqlite3__wasm_db_error(
          capi.sqlite3_db_handle(pStmt), e
        );
      }
@@ -1472,7 +1490,7 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
        }else if('string'===typeof pMem){
          [p, n] = wasm.allocCString(pMem);
        }else{
-          return util.sqlite3_wasm_db_error(
+          return util.sqlite3__wasm_db_error(
            capi.sqlite3_db_handle(pStmt), capi.SQLITE_MISUSE,
            "Invalid 3rd argument type for sqlite3_bind_blob()."
          );
@@ -1480,7 +1498,7 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
        return __bindBlob(pStmt, iCol, p, n, capi.SQLITE_WASM_DEALLOC);
      }catch(e){
        wasm.dealloc(p);
-        return util.sqlite3_wasm_db_error(
+        return util.sqlite3__wasm_db_error(
          capi.sqlite3_db_handle(pStmt), e
        );
      }
@@ -1504,11 +1522,11 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
          case capi.SQLITE_CONFIG_SORTERREF_SIZE: // 28  /* int nByte */
          case capi.SQLITE_CONFIG_STMTJRNL_SPILL: // 26  /* int nByte */
          case capi.SQLITE_CONFIG_URI:// 17  /* int */
-            return wasm.exports.sqlite3_wasm_config_i(op, args[0]);
+            return wasm.exports.sqlite3__wasm_config_i(op, args[0]);
          case capi.SQLITE_CONFIG_LOOKASIDE: // 13  /* int int */
-            return wasm.exports.sqlite3_wasm_config_ii(op, args[0], args[1]);
+            return wasm.exports.sqlite3__wasm_config_ii(op, args[0], args[1]);
          case capi.SQLITE_CONFIG_MEMDB_MAXSIZE: // 29  /* sqlite3_int64 */
-            return wasm.exports.sqlite3_wasm_config_j(op, args[0]);
+            return wasm.exports.sqlite3__wasm_config_j(op, args[0]);
          case capi.SQLITE_CONFIG_GETMALLOC: // 5 /* sqlite3_mem_methods* */
          case capi.SQLITE_CONFIG_GETMUTEX: // 11  /* sqlite3_mutex_methods* */
          case capi.SQLITE_CONFIG_GETPCACHE2: // 19  /* sqlite3_pcache_methods2* */
@@ -1574,11 +1592,11 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
  if( pKvvfs ){/* kvvfs-specific glue */
    if(util.isUIThread()){
      const kvvfsMethods = new capi.sqlite3_kvvfs_methods(
-        wasm.exports.sqlite3_wasm_kvvfs_methods()
+        wasm.exports.sqlite3__wasm_kvvfs_methods()
      );
      delete capi.sqlite3_kvvfs_methods;

-      const kvvfsMakeKey = wasm.exports.sqlite3_wasm_kvvfsMakeKeyOnPstack,
+      const kvvfsMakeKey = wasm.exports.sqlite3__wasm_kvvfsMakeKeyOnPstack,
            pstack = wasm.pstack;

      const kvvfsStorage = (zClass)=>
@@ -1587,7 +1605,7 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){

      /**
         Implementations for members of the object referred to by
-         sqlite3_wasm_kvvfs_methods(). We swap out the native
+         sqlite3__wasm_kvvfs_methods(). We swap out the native
         implementations with these, which use localStorage or
         sessionStorage for their backing store.
      */
@@ -1667,5 +1685,181 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
    }
  }/*pKvvfs*/

+  /* Warn if client-level code makes use of FuncPtrAdapter. */
  wasm.xWrap.FuncPtrAdapter.warnOnUse = true;
+
+  const StructBinder = sqlite3.StructBinder
+  /* we require a local alias b/c StructBinder is removed from the sqlite3
+     object during the final steps of the API cleanup. */;
+  /**
+     Installs a StructBinder-bound function pointer member of the
+     given name and function in the given StructBinder.StructType
+     target object.
+
+     It creates a WASM proxy for the given function and arranges for
+     that proxy to be cleaned up when tgt.dispose() is called. Throws
+     on the slightest hint of error, e.g. tgt is-not-a StructType,
+     name does not map to a struct-bound member, etc.
+
+     As a special case, if the given function is a pointer, then
+     `wasm.functionEntry()` is used to validate that it is a known
+     function. If so, it is used as-is with no extra level of proxying
+     or cleanup, else an exception is thrown. It is legal to pass a
+     value of 0, indicating a NULL pointer, with the caveat that 0
+     _is_ a legal function pointer in WASM but it will not be accepted
+     as such _here_. (Justification: the function at address zero must
+     be one which initially came from the WASM module, not a method we
+     want to bind to a virtual table or VFS.)
+
+     This function returns a proxy for itself which is bound to tgt
+     and takes 2 args (name,func). That function returns the same
+     thing as this one, permitting calls to be chained.
+
+     If called with only 1 arg, it has no side effects but returns a
+     func with the same signature as described above.
+
+     ACHTUNG: because we cannot generically know how to transform JS
+     exceptions into result codes, the installed functions do no
+     automatic catching of exceptions. It is critical, to avoid
+     undefined behavior in the C layer, that methods mapped via
+     this function do not throw. The exception, as it were, to that
+     rule is...
+
+     If applyArgcCheck is true then each JS function (as opposed to
+     function pointers) gets wrapped in a proxy which asserts that it
+     is passed the expected number of arguments, throwing if the
+     argument count does not match expectations. That is only intended
+     for dev-time usage for sanity checking, and may leave the C
+     environment in an undefined state.
+  */
+  const installMethod = function callee(
+    tgt, name, func, applyArgcCheck = callee.installMethodArgcCheck
+  ){
+    if(!(tgt instanceof StructBinder.StructType)){
+      toss("Usage error: target object is-not-a StructType.");
+    }else if(!(func instanceof Function) && !wasm.isPtr(func)){
+      toss("Usage errror: expecting a Function or WASM pointer to one.");
+    }
+    if(1===arguments.length){
+      return (n,f)=>callee(tgt, n, f, applyArgcCheck);
+    }
+    if(!callee.argcProxy){
+      callee.argcProxy = function(tgt, funcName, func,sig){
+        return function(...args){
+          if(func.length!==arguments.length){
+            toss("Argument mismatch for",
+                 tgt.structInfo.name+"::"+funcName
+                 +": Native signature is:",sig);
+          }
+          return func.apply(this, args);
+        }
+      };
+      /* An ondispose() callback for use with
+         StructBinder-created types. */
+      callee.removeFuncList = function(){
+        if(this.ondispose.__removeFuncList){
+          this.ondispose.__removeFuncList.forEach(
+            (v,ndx)=>{
+              if('number'===typeof v){
+                try{wasm.uninstallFunction(v)}
+                catch(e){/*ignore*/}
+              }
+              /* else it's a descriptive label for the next number in
+                 the list. */
+            }
+          );
+          delete this.ondispose.__removeFuncList;
+        }
+      };
+    }/*static init*/
+    const sigN = tgt.memberSignature(name);
+    if(sigN.length<2){
+      toss("Member",name,"does not have a function pointer signature:",sigN);
+    }
+    const memKey = tgt.memberKey(name);
+    const fProxy = (applyArgcCheck && !wasm.isPtr(func))
+    /** This middle-man proxy is only for use during development, to
+        confirm that we always pass the proper number of
+        arguments. We know that the C-level code will always use the
+        correct argument count. */
+          ? callee.argcProxy(tgt, memKey, func, sigN)
+          : func;
+    if(wasm.isPtr(fProxy)){
+      if(fProxy && !wasm.functionEntry(fProxy)){
+        toss("Pointer",fProxy,"is not a WASM function table entry.");
+      }
+      tgt[memKey] = fProxy;
+    }else{
+      const pFunc = wasm.installFunction(fProxy, tgt.memberSignature(name, true));
+      tgt[memKey] = pFunc;
+      if(!tgt.ondispose || !tgt.ondispose.__removeFuncList){
+        tgt.addOnDispose('ondispose.__removeFuncList handler',
+                         callee.removeFuncList);
+        tgt.ondispose.__removeFuncList = [];
+      }
+      tgt.ondispose.__removeFuncList.push(memKey, pFunc);
+    }
+    return (n,f)=>callee(tgt, n, f, applyArgcCheck);
+  }/*installMethod*/;
+  installMethod.installMethodArgcCheck = false;
+
+  /**
+     Installs methods into the given StructBinder.StructType-type
+     instance. Each entry in the given methods object must map to a
+     known member of the given StructType, else an exception will be
+     triggered.  See installMethod() for more details, including the
+     semantics of the 3rd argument.
+
+     As an exception to the above, if any two or more methods in the
+     2nd argument are the exact same function, installMethod() is
+     _not_ called for the 2nd and subsequent instances, and instead
+     those instances get assigned the same method pointer which is
+     created for the first instance. This optimization is primarily to
+     accommodate special handling of sqlite3_module::xConnect and
+     xCreate methods.
+
+     On success, returns its first argument. Throws on error.
+  */
+  const installMethods = function(
+    structInstance, methods, applyArgcCheck = installMethod.installMethodArgcCheck
+  ){
+    const seen = new Map /* map of <Function, memberName> */;
+    for(const k of Object.keys(methods)){
+      const m = methods[k];
+      const prior = seen.get(m);
+      if(prior){
+        const mkey = structInstance.memberKey(k);
+        structInstance[mkey] = structInstance[structInstance.memberKey(prior)];
+      }else{
+        installMethod(structInstance, k, m, applyArgcCheck);
+        seen.set(m, k);
+      }
+    }
+    return structInstance;
+  };
+
+  /**
+     Equivalent to calling installMethod(this,...arguments) with a
+     first argument of this object. If called with 1 or 2 arguments
+     and the first is an object, it's instead equivalent to calling
+     installMethods(this,...arguments).
+  */
+  StructBinder.StructType.prototype.installMethod = function callee(
+    name, func, applyArgcCheck = installMethod.installMethodArgcCheck
+  ){
+    return (arguments.length < 3 && name && 'object'===typeof name)
+      ? installMethods(this, ...arguments)
+      : installMethod(this, ...arguments);
+  };
+
+  /**
+     Equivalent to calling installMethods() with a first argument
+     of this object.
+  */
+  StructBinder.StructType.prototype.installMethods = function(
+    methods, applyArgcCheck = installMethod.installMethodArgcCheck
+  ){
+    return installMethods(this, methods, applyArgcCheck);
+  };
+
 });
@@ -1,3 +1,4 @@
+//#ifnot omit-oo1
 /*
  2022-07-22

@@ -1940,4 +1941,6 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
  }/*main-window-only bits*/

 });
-
+//#else
+/* Built with the omit-oo1 flag. */
+//#endif ifnot omit-oo1
@@ -1061,7 +1061,7 @@ globalThis.sqlite3ApiBootstrap = function sqlite3ApiBootstrap(
       are undefined if the passed-in value did not come from
       this.pointer.
    */
-    restore: wasm.exports.sqlite3_wasm_pstack_restore,
+    restore: wasm.exports.sqlite3__wasm_pstack_restore,
    /**
       Attempts to allocate the given number of bytes from the
       pstack. On success, it zeroes out a block of memory of the
@@ -1083,7 +1083,7 @@ globalThis.sqlite3ApiBootstrap = function sqlite3ApiBootstrap(
      if('string'===typeof n && !(n = wasm.sizeofIR(n))){
        WasmAllocError.toss("Invalid value for pstack.alloc(",arguments[0],")");
      }
-      return wasm.exports.sqlite3_wasm_pstack_alloc(n)
+      return wasm.exports.sqlite3__wasm_pstack_alloc(n)
        || WasmAllocError.toss("Could not allocate",n,
                               "bytes from the pstack.");
    },
@@ -1163,10 +1163,10 @@ globalThis.sqlite3ApiBootstrap = function sqlite3ApiBootstrap(
    */
    pointer: {
      configurable: false, iterable: true, writeable: false,
-      get: wasm.exports.sqlite3_wasm_pstack_ptr
+      get: wasm.exports.sqlite3__wasm_pstack_ptr
      //Whether or not a setter as an alternative to restore() is
      //clearer or would just lead to confusion is unclear.
-      //set: wasm.exports.sqlite3_wasm_pstack_restore
+      //set: wasm.exports.sqlite3__wasm_pstack_restore
    },
    /**
       sqlite3.wasm.pstack.quota to the total number of bytes
@@ -1175,7 +1175,7 @@ globalThis.sqlite3ApiBootstrap = function sqlite3ApiBootstrap(
    */
    quota: {
      configurable: false, iterable: true, writeable: false,
-      get: wasm.exports.sqlite3_wasm_pstack_quota
+      get: wasm.exports.sqlite3__wasm_pstack_quota
    },
    /**
       sqlite3.wasm.pstack.remaining resolves to the amount of space
@@ -1183,7 +1183,7 @@ globalThis.sqlite3ApiBootstrap = function sqlite3ApiBootstrap(
    */
    remaining: {
      configurable: false, iterable: true, writeable: false,
-      get: wasm.exports.sqlite3_wasm_pstack_remaining
+      get: wasm.exports.sqlite3__wasm_pstack_remaining
    }
  })/*wasm.pstack properties*/;

@@ -1256,14 +1256,14 @@ globalThis.sqlite3ApiBootstrap = function sqlite3ApiBootstrap(
    }
    try{
      if(pdir && 0===wasm.xCallWrapped(
-        'sqlite3_wasm_init_wasmfs', 'i32', ['string'], pdir
+        'sqlite3__wasm_init_wasmfs', 'i32', ['string'], pdir
      )){
        return __wasmfsOpfsDir = pdir;
      }else{
        return __wasmfsOpfsDir = "";
      }
    }catch(e){
-      // sqlite3_wasm_init_wasmfs() is not available
+      // sqlite3__wasm_init_wasmfs() is not available
      return __wasmfsOpfsDir = "";
    }
  };
@@ -1365,7 +1365,7 @@ globalThis.sqlite3ApiBootstrap = function sqlite3ApiBootstrap(
      const zSchema = schema
            ? (wasm.isPtr(schema) ? schema : wasm.scopedAllocCString(''+schema))
            : 0;
-      let rc = wasm.exports.sqlite3_wasm_db_serialize(
+      let rc = wasm.exports.sqlite3__wasm_db_serialize(
        pDb, zSchema, ppOut, pSize, 0
      );
      if(rc){
@@ -1391,7 +1391,7 @@ globalThis.sqlite3ApiBootstrap = function sqlite3ApiBootstrap(
     or not provided, then "main" is assumed.
  */
  capi.sqlite3_js_db_vfs =
-    (dbPointer, dbName=0)=>wasm.sqlite3_wasm_db_vfs(dbPointer, dbName);
+    (dbPointer, dbName=0)=>util.sqlite3__wasm_db_vfs(dbPointer, dbName);

  /**
     A thin wrapper around capi.sqlite3_aggregate_context() which
@@ -1449,7 +1449,7 @@ globalThis.sqlite3ApiBootstrap = function sqlite3ApiBootstrap(
      if(!util.isInt32(dataLen) || dataLen<0){
        SQLite3Error.toss("Invalid 3rd argument for sqlite3_js_posix_create_file().");
      }
-      const rc = wasm.sqlite3_wasm_posix_create_file(filename, pData, dataLen);
+      const rc = util.sqlite3__wasm_posix_create_file(filename, pData, dataLen);
      if(rc) SQLite3Error.toss("Creation of file failed with sqlite3 result code",
                               capi.sqlite3_js_rc_str(rc));
    }finally{
@@ -1551,7 +1551,7 @@ globalThis.sqlite3ApiBootstrap = function sqlite3ApiBootstrap(
      SQLite3Error.toss("Invalid 4th argument for sqlite3_js_vfs_create_file().");
    }
    try{
-      const rc = wasm.sqlite3_wasm_vfs_create_file(vfs, filename, pData, dataLen);
+      const rc = util.sqlite3__wasm_vfs_create_file(vfs, filename, pData, dataLen);
      if(rc) SQLite3Error.toss("Creation of file failed with sqlite3 result code",
                               capi.sqlite3_js_rc_str(rc));
    }finally{
@@ -1672,12 +1672,12 @@ globalThis.sqlite3ApiBootstrap = function sqlite3ApiBootstrap(
  */
  capi.sqlite3_db_config = function(pDb, op, ...args){
    if(!this.s){
-      this.s = wasm.xWrap('sqlite3_wasm_db_config_s','int',
+      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',
+      this.pii = wasm.xWrap('sqlite3__wasm_db_config_pii', 'int',
                            ['sqlite3*', 'int', '*','int', 'int']);
-      this.ip = wasm.xWrap('sqlite3_wasm_db_config_ip','int',
+      this.ip = wasm.xWrap('sqlite3__wasm_db_config_ip','int',
                           ['sqlite3*', 'int', 'int','*']);
    }
    switch(op){
@@ -1,3 +1,4 @@
+//#ifnot omit-oo1
 /**
  2022-07-22

@@ -358,6 +359,7 @@

 */
 globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
+const util = sqlite3.util;
 sqlite3.initWorker1API = function(){
  'use strict';
  const toss = (...args)=>{throw new Error(args.join(' '))};
@@ -408,12 +410,12 @@ sqlite3.initWorker1API = function(){
      if(db){
        delete this.dbs[getDbId(db)];
        const filename = db.filename;
-        const pVfs = sqlite3.wasm.sqlite3_wasm_db_vfs(db.pointer, 0);
+        const pVfs = util.sqlite3__wasm_db_vfs(db.pointer, 0);
        db.close();
        const ddNdx = this.dbList.indexOf(db);
        if(ddNdx>=0) this.dbList.splice(ddNdx, 1);
        if(alsoUnlink && filename && pVfs){
-          sqlite3.wasm.sqlite3_wasm_vfs_unlink(pVfs, filename);
+          util.sqlite3__wasm_vfs_unlink(pVfs, filename);
        }
      }
    },
@@ -494,12 +496,12 @@ sqlite3.initWorker1API = function(){
      }
      if(pVfs){
        /* 2022-11-02: this feature is as-yet untested except that
-           sqlite3_wasm_vfs_create_file() has been tested from the
+           sqlite3__wasm_vfs_create_file() has been tested from the
           browser dev console. */
        let pMem;
        try{
          pMem = sqlite3.wasm.allocFromTypedArray(byteArray);
-          const rc = sqlite3.wasm.sqlite3_wasm_vfs_create_file(
+          const rc = util.sqlite3__wasm_vfs_create_file(
            pVfs, oargs.filename, pMem, byteArray.byteLength
          );
          if(rc) sqlite3.SQLite3Error.toss(rc);
@@ -689,3 +691,6 @@ sqlite3.initWorker1API = function(){
  globalThis.postMessage({type:'sqlite3-api',result:'worker1-ready'});
 }.bind({sqlite3});
 });
+//#else
+/* Built with the omit-oo1 flag. */
+//#endif ifnot omit-oo1
@@ -0,0 +1,103 @@
+/*
+** 2022-11-30
+**
+** The author disclaims copyright to this source code.  In place of a
+** legal notice, here is a blessing:
+**
+** *   May you do good and not evil.
+** *   May you find forgiveness for yourself and forgive others.
+** *   May you share freely, never taking more than you give.
+*/
+
+/**
+   This file installs sqlite3.vfs, a namespace of helpers for use in
+   the creation of JavaScript implementations of sqlite3_vfs.
+*/
+'use strict';
+globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
+  const wasm = sqlite3.wasm, capi = sqlite3.capi, toss = sqlite3.util.toss3;
+  const vfs = Object.create(null);
+  sqlite3.vfs = vfs;
+
+  /**
+     Uses sqlite3_vfs_register() to register this
+     sqlite3.capi.sqlite3_vfs instance. This object must have already
+     been filled out properly. If the first argument is truthy, the
+     VFS is registered as the default VFS, else it is not.
+
+     On success, returns this object. Throws on error.
+  */
+  capi.sqlite3_vfs.prototype.registerVfs = function(asDefault=false){
+    if(!(this instanceof sqlite3.capi.sqlite3_vfs)){
+      toss("Expecting a sqlite3_vfs-type argument.");
+    }
+    const rc = capi.sqlite3_vfs_register(this, asDefault ? 1 : 0);
+    if(rc){
+      toss("sqlite3_vfs_register(",this,") failed with rc",rc);
+    }
+    if(this.pointer !== capi.sqlite3_vfs_find(this.$zName)){
+      toss("BUG: sqlite3_vfs_find(vfs.$zName) failed for just-installed VFS",
+           this);
+    }
+    return this;
+  };
+
+  /**
+     A wrapper for
+     sqlite3.StructBinder.StructType.prototype.installMethods() or
+     registerVfs() to reduce installation of a VFS and/or its I/O
+     methods to a single call.
+
+     Accepts an object which contains the properties "io" and/or
+     "vfs", each of which is itself an object with following properties:
+
+     - `struct`: an sqlite3.StructBinder.StructType-type struct. This
+       must be a populated (except for the methods) object of type
+       sqlite3_io_methods (for the "io" entry) or sqlite3_vfs (for the
+       "vfs" entry).
+
+     - `methods`: an object mapping sqlite3_io_methods method names
+       (e.g. 'xClose') to JS implementations of those methods. The JS
+       implementations must be call-compatible with their native
+       counterparts.
+
+     For each of those object, this function passes its (`struct`,
+     `methods`, (optional) `applyArgcCheck`) properties to
+     installMethods().
+
+     If the `vfs` entry is set then:
+
+     - Its `struct` property's registerVfs() is called. The
+       `vfs` entry may optionally have an `asDefault` property, which
+       gets passed as the argument to registerVfs().
+
+     - If `struct.$zName` is falsy and the entry has a string-type
+       `name` property, `struct.$zName` is set to the C-string form of
+       that `name` value before registerVfs() is called. That string
+       gets added to the on-dispose state of the struct.
+
+     On success returns this object. Throws on error.
+  */
+  vfs.installVfs = function(opt){
+    let count = 0;
+    const propList = ['io','vfs'];
+    for(const key of propList){
+      const o = opt[key];
+      if(o){
+        ++count;
+        o.struct.installMethods(o.methods, !!o.applyArgcCheck);
+        if('vfs'===key){
+          if(!o.struct.$zName && 'string'===typeof o.name){
+            o.struct.addOnDispose(
+              o.struct.$zName = wasm.allocCString(o.name)
+            );
+          }
+          o.struct.registerVfs(!!o.asDefault);
+        }
+      }
+    }
+    if(!count) toss("Misuse: installVfs() options object requires at least",
+                    "one of:", propList);
+    return this;
+  };
+}/*sqlite3ApiBootstrap.initializers.push()*/);
@@ -245,7 +245,8 @@ const installOpfsVfs = function callee(options){
    opfsIoMethods.$iVersion = 1;
    opfsVfs.$iVersion = 2/*yes, two*/;
    opfsVfs.$szOsFile = capi.sqlite3_file.structInfo.sizeof;
-    opfsVfs.$mxPathname = 1024/*sure, why not?*/;
+    opfsVfs.$mxPathname = 1024/* sure, why not? The OPFS name length limit
+                                 is undocumented/unspecified. */;
    opfsVfs.$zName = wasm.allocCString("opfs");
    // All C-side memory of opfsVfs is zeroed out, but just to be explicit:
    opfsVfs.$xDlOpen = opfsVfs.$xDlError = opfsVfs.$xDlSym = opfsVfs.$xDlClose = null;
@@ -993,27 +994,6 @@ const installOpfsVfs = function callee(options){
    */
    opfsUtil.randomFilename = randomFilename;

-    /**
-       Re-registers the OPFS VFS. This is intended only for odd use
-       cases which have to call sqlite3_shutdown() as part of their
-       initialization process, which will unregister the VFS
-       registered by installOpfsVfs(). If passed a truthy value, the
-       OPFS VFS is registered as the default VFS, else it is not made
-       the default. Returns the result of the the
-       sqlite3_vfs_register() call.
-
-       Design note: the problem of having to re-register things after
-       a shutdown/initialize pair is more general. How to best plug
-       that in to the library is unclear. In particular, we cannot
-       hook in to any C-side calls to sqlite3_initialize(), so we
-       cannot add an after-initialize callback mechanism.
-    */
-    opfsUtil.registerVfs = (asDefault=false)=>{
-      return wasm.exports.sqlite3_vfs_register(
-        opfsVfs.pointer, asDefault ? 1 : 0
-      );
-    };
-
    /**
       Returns a promise which resolves to an object which represents
       all files and directories in the OPFS tree. The top-most object
@@ -10,19 +10,13 @@
 */

 /**
-   This file installs sqlite3.vfs, and object which exists to assist
-   in the creation of JavaScript implementations of sqlite3_vfs, along
-   with its virtual table counterpart, sqlite3.vtab.
+   This file installs sqlite3.vtab, a namespace of helpers for use in
+   the creation of JavaScript implementations virtual tables.
 */
 'use strict';
 globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
  const wasm = sqlite3.wasm, capi = sqlite3.capi, toss = sqlite3.util.toss3;
-  const vfs = Object.create(null), vtab = Object.create(null);
-
-  const StructBinder = sqlite3.StructBinder
-  /* we require a local alias b/c StructBinder is removed from the sqlite3
-     object during the final steps of the API cleanup. */;
-  sqlite3.vfs = vfs;
+  const vtab = Object.create(null);
  sqlite3.vtab = vtab;

  const sii = capi.sqlite3_index_info;
@@ -72,257 +66,6 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
    return asPtr ? ptr : new sii.sqlite3_index_orderby(ptr);
  };

-  /**
-     Installs a StructBinder-bound function pointer member of the
-     given name and function in the given StructType target object.
-
-     It creates a WASM proxy for the given function and arranges for
-     that proxy to be cleaned up when tgt.dispose() is called. Throws
-     on the slightest hint of error, e.g. tgt is-not-a StructType,
-     name does not map to a struct-bound member, etc.
-
-     As a special case, if the given function is a pointer, then
-     `wasm.functionEntry()` is used to validate that it is a known
-     function. If so, it is used as-is with no extra level of proxying
-     or cleanup, else an exception is thrown. It is legal to pass a
-     value of 0, indicating a NULL pointer, with the caveat that 0
-     _is_ a legal function pointer in WASM but it will not be accepted
-     as such _here_. (Justification: the function at address zero must
-     be one which initially came from the WASM module, not a method we
-     want to bind to a virtual table or VFS.)
-
-     This function returns a proxy for itself which is bound to tgt
-     and takes 2 args (name,func). That function returns the same
-     thing as this one, permitting calls to be chained.
-
-     If called with only 1 arg, it has no side effects but returns a
-     func with the same signature as described above.
-
-     ACHTUNG: because we cannot generically know how to transform JS
-     exceptions into result codes, the installed functions do no
-     automatic catching of exceptions. It is critical, to avoid
-     undefined behavior in the C layer, that methods mapped via
-     this function do not throw. The exception, as it were, to that
-     rule is...
-
-     If applyArgcCheck is true then each JS function (as opposed to
-     function pointers) gets wrapped in a proxy which asserts that it
-     is passed the expected number of arguments, throwing if the
-     argument count does not match expectations. That is only intended
-     for dev-time usage for sanity checking, and will leave the C
-     environment in an undefined state.
-  */
-  const installMethod = function callee(
-    tgt, name, func, applyArgcCheck = callee.installMethodArgcCheck
-  ){
-    if(!(tgt instanceof StructBinder.StructType)){
-      toss("Usage error: target object is-not-a StructType.");
-    }else if(!(func instanceof Function) && !wasm.isPtr(func)){
-      toss("Usage errror: expecting a Function or WASM pointer to one.");
-    }
-    if(1===arguments.length){
-      return (n,f)=>callee(tgt, n, f, applyArgcCheck);
-    }
-    if(!callee.argcProxy){
-      callee.argcProxy = function(tgt, funcName, func,sig){
-        return function(...args){
-          if(func.length!==arguments.length){
-            toss("Argument mismatch for",
-                 tgt.structInfo.name+"::"+funcName
-                 +": Native signature is:",sig);
-          }
-          return func.apply(this, args);
-        }
-      };
-      /* An ondispose() callback for use with
-         StructBinder-created types. */
-      callee.removeFuncList = function(){
-        if(this.ondispose.__removeFuncList){
-          this.ondispose.__removeFuncList.forEach(
-            (v,ndx)=>{
-              if('number'===typeof v){
-                try{wasm.uninstallFunction(v)}
-                catch(e){/*ignore*/}
-              }
-              /* else it's a descriptive label for the next number in
-                 the list. */
-            }
-          );
-          delete this.ondispose.__removeFuncList;
-        }
-      };
-    }/*static init*/
-    const sigN = tgt.memberSignature(name);
-    if(sigN.length<2){
-      toss("Member",name,"does not have a function pointer signature:",sigN);
-    }
-    const memKey = tgt.memberKey(name);
-    const fProxy = (applyArgcCheck && !wasm.isPtr(func))
-    /** This middle-man proxy is only for use during development, to
-        confirm that we always pass the proper number of
-        arguments. We know that the C-level code will always use the
-        correct argument count. */
-          ? callee.argcProxy(tgt, memKey, func, sigN)
-          : func;
-    if(wasm.isPtr(fProxy)){
-      if(fProxy && !wasm.functionEntry(fProxy)){
-        toss("Pointer",fProxy,"is not a WASM function table entry.");
-      }
-      tgt[memKey] = fProxy;
-    }else{
-      const pFunc = wasm.installFunction(fProxy, tgt.memberSignature(name, true));
-      tgt[memKey] = pFunc;
-      if(!tgt.ondispose || !tgt.ondispose.__removeFuncList){
-        tgt.addOnDispose('ondispose.__removeFuncList handler',
-                         callee.removeFuncList);
-        tgt.ondispose.__removeFuncList = [];
-      }
-      tgt.ondispose.__removeFuncList.push(memKey, pFunc);
-    }
-    return (n,f)=>callee(tgt, n, f, applyArgcCheck);
-  }/*installMethod*/;
-  installMethod.installMethodArgcCheck = false;
-
-  /**
-     Installs methods into the given StructType-type instance. Each
-     entry in the given methods object must map to a known member of
-     the given StructType, else an exception will be triggered.  See
-     installMethod() for more details, including the semantics of the
-     3rd argument.
-
-     As an exception to the above, if any two or more methods in the
-     2nd argument are the exact same function, installMethod() is
-     _not_ called for the 2nd and subsequent instances, and instead
-     those instances get assigned the same method pointer which is
-     created for the first instance. This optimization is primarily to
-     accommodate special handling of sqlite3_module::xConnect and
-     xCreate methods.
-
-     On success, returns its first argument. Throws on error.
-  */
-  const installMethods = function(
-    structInstance, methods, applyArgcCheck = installMethod.installMethodArgcCheck
-  ){
-    const seen = new Map /* map of <Function, memberName> */;
-    for(const k of Object.keys(methods)){
-      const m = methods[k];
-      const prior = seen.get(m);
-      if(prior){
-        const mkey = structInstance.memberKey(k);
-        structInstance[mkey] = structInstance[structInstance.memberKey(prior)];
-      }else{
-        installMethod(structInstance, k, m, applyArgcCheck);
-        seen.set(m, k);
-      }
-    }
-    return structInstance;
-  };
-
-  /**
-     Equivalent to calling installMethod(this,...arguments) with a
-     first argument of this object. If called with 1 or 2 arguments
-     and the first is an object, it's instead equivalent to calling
-     installMethods(this,...arguments).
-  */
-  StructBinder.StructType.prototype.installMethod = function callee(
-    name, func, applyArgcCheck = installMethod.installMethodArgcCheck
-  ){
-    return (arguments.length < 3 && name && 'object'===typeof name)
-      ? installMethods(this, ...arguments)
-      : installMethod(this, ...arguments);
-  };
-
-  /**
-     Equivalent to calling installMethods() with a first argument
-     of this object.
-  */
-  StructBinder.StructType.prototype.installMethods = function(
-    methods, applyArgcCheck = installMethod.installMethodArgcCheck
-  ){
-    return installMethods(this, methods, applyArgcCheck);
-  };
-
-  /**
-     Uses sqlite3_vfs_register() to register this
-     sqlite3.capi.sqlite3_vfs. This object must have already been
-     filled out properly. If the first argument is truthy, the VFS is
-     registered as the default VFS, else it is not.
-
-     On success, returns this object. Throws on error.
-  */
-  capi.sqlite3_vfs.prototype.registerVfs = function(asDefault=false){
-    if(!(this instanceof sqlite3.capi.sqlite3_vfs)){
-      toss("Expecting a sqlite3_vfs-type argument.");
-    }
-    const rc = capi.sqlite3_vfs_register(this, asDefault ? 1 : 0);
-    if(rc){
-      toss("sqlite3_vfs_register(",this,") failed with rc",rc);
-    }
-    if(this.pointer !== capi.sqlite3_vfs_find(this.$zName)){
-      toss("BUG: sqlite3_vfs_find(vfs.$zName) failed for just-installed VFS",
-           this);
-    }
-    return this;
-  };
-
-  /**
-     A wrapper for installMethods() or registerVfs() to reduce
-     installation of a VFS and/or its I/O methods to a single
-     call.
-
-     Accepts an object which contains the properties "io" and/or
-     "vfs", each of which is itself an object with following properties:
-
-     - `struct`: an sqlite3.StructType-type struct. This must be a
-       populated (except for the methods) object of type
-       sqlite3_io_methods (for the "io" entry) or sqlite3_vfs (for the
-       "vfs" entry).
-
-     - `methods`: an object mapping sqlite3_io_methods method names
-       (e.g. 'xClose') to JS implementations of those methods. The JS
-       implementations must be call-compatible with their native
-       counterparts.
-
-     For each of those object, this function passes its (`struct`,
-     `methods`, (optional) `applyArgcCheck`) properties to
-     installMethods().
-
-     If the `vfs` entry is set then:
-
-     - Its `struct` property's registerVfs() is called. The
-       `vfs` entry may optionally have an `asDefault` property, which
-       gets passed as the argument to registerVfs().
-
-     - If `struct.$zName` is falsy and the entry has a string-type
-       `name` property, `struct.$zName` is set to the C-string form of
-       that `name` value before registerVfs() is called. That string
-       gets added to the on-dispose state of the struct.
-
-     On success returns this object. Throws on error.
-  */
-  vfs.installVfs = function(opt){
-    let count = 0;
-    const propList = ['io','vfs'];
-    for(const key of propList){
-      const o = opt[key];
-      if(o){
-        ++count;
-        installMethods(o.struct, o.methods, !!o.applyArgcCheck);
-        if('vfs'===key){
-          if(!o.struct.$zName && 'string'===typeof o.name){
-            o.struct.addOnDispose(
-              o.struct.$zName = wasm.allocCString(o.name)
-            );
-          }
-          o.struct.registerVfs(!!o.asDefault);
-        }
-      }
-    }
-    if(!count) toss("Misuse: installVfs() options object requires at least",
-                    "one of:", propList);
-    return this;
-  };
-
  /**
     Internal factory function for xVtab and xCursor impls.
  */
@@ -456,30 +199,6 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
  */
  vtab.xIndexInfo = (pIdxInfo)=>new capi.sqlite3_index_info(pIdxInfo);

-  /**
-     Given an error object, this function returns
-     sqlite3.capi.SQLITE_NOMEM if (e instanceof
-     sqlite3.WasmAllocError), else it returns its
-     second argument. Its intended usage is in the methods
-     of a sqlite3_vfs or sqlite3_module:
-
-     ```
-     try{
-      let rc = ...
-      return rc;
-     }catch(e){
-       return sqlite3.vtab.exceptionToRc(e, sqlite3.capi.SQLITE_XYZ);
-       // where SQLITE_XYZ is some call-appropriate result code.
-     }
-     ```
-  */
-  /**vfs.exceptionToRc = vtab.exceptionToRc =
-    (e, defaultRc=capi.SQLITE_ERROR)=>(
-      (e instanceof sqlite3.WasmAllocError)
-        ? capi.SQLITE_NOMEM
-        : defaultRc
-    );*/
-
  /**
     Given an sqlite3_module method name and error object, this
     function returns sqlite3.capi.SQLITE_NOMEM if (e instanceof
@@ -525,20 +244,6 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
  };
  vtab.xError.errorReporter = 1 ? console.error.bind(console) : false;

-  /**
-     "The problem" with this is that it introduces an outer function with
-     a different arity than the passed-in method callback. That means we
-     cannot do argc validation on these. Additionally, some methods (namely
-     xConnect) may have call-specific error handling. It would be a shame to
-     hard-coded that per-method support in this function.
-  */
-  /** vtab.methodCatcher = function(methodName, method, defaultErrRc=capi.SQLITE_ERROR){
-    return function(...args){
-      try { method(...args); }
-      }catch(e){ return vtab.xError(methodName, e, defaultRc) }
-  };
-  */
-
  /**
     A helper for sqlite3_vtab::xRowid() and xUpdate()
     implementations. It must be passed the final argument to one of
@@ -685,12 +390,12 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
            remethods[k] = fwrap(k, m);
          }
        }
-        installMethods(mod, remethods, false);
+        mod.installMethods(remethods, false);
      }else{
        // No automatic exception handling. Trust the client
        // to not throw.
-        installMethods(
-          mod, methods, !!opt.applyArgcCheck/*undocumented option*/
+        mod.installMethods(
+          methods, !!opt.applyArgcCheck/*undocumented option*/
        );
      }
      if(0===mod.$iVersion){
@@ -147,6 +147,12 @@
 # define SQLITE_OS_KV_OPTIONAL 1
 #endif

+/**********************************************************************/
+/* SQLITE_S... */
+#ifndef SQLITE_STRICT_SUBTYPE
+# define SQLITE_STRICT_SUBTYPE 1
+#endif
+
 /**********************************************************************/
 /* SQLITE_T... */
 #ifndef SQLITE_TEMP_STORE
@@ -232,28 +238,28 @@
 ** Another option is to malloc() a chunk of our own and call that our
 ** "stack".
 */
-SQLITE_WASM_EXPORT void * sqlite3_wasm_stack_end(void){
+SQLITE_WASM_EXPORT void * sqlite3__wasm_stack_end(void){
  extern void __heap_base
    /* see https://stackoverflow.com/questions/10038964 */;
  return &__heap_base;
 }
-SQLITE_WASM_EXPORT void * sqlite3_wasm_stack_begin(void){
+SQLITE_WASM_EXPORT void * sqlite3__wasm_stack_begin(void){
  extern void __data_end;
  return &__data_end;
 }
 static void * pWasmStackPtr = 0;
-SQLITE_WASM_EXPORT void * sqlite3_wasm_stack_ptr(void){
-  if(!pWasmStackPtr) pWasmStackPtr = sqlite3_wasm_stack_end();
+SQLITE_WASM_EXPORT void * sqlite3__wasm_stack_ptr(void){
+  if(!pWasmStackPtr) pWasmStackPtr = sqlite3__wasm_stack_end();
  return pWasmStackPtr;
 }
-SQLITE_WASM_EXPORT void sqlite3_wasm_stack_restore(void * p){
+SQLITE_WASM_EXPORT void sqlite3__wasm_stack_restore(void * p){
  pWasmStackPtr = p;
 }
-SQLITE_WASM_EXPORT void * sqlite3_wasm_stack_alloc(int n){
+SQLITE_WASM_EXPORT void * sqlite3__wasm_stack_alloc(int n){
  if(n<=0) return 0;
  n = (n + 7) & ~7 /* align to 8-byte boundary */;
-  unsigned char * const p = (unsigned char *)sqlite3_wasm_stack_ptr();
-  unsigned const char * const b = (unsigned const char *)sqlite3_wasm_stack_begin();
+  unsigned char * const p = (unsigned char *)sqlite3__wasm_stack_ptr();
+  unsigned const char * const b = (unsigned const char *)sqlite3__wasm_stack_begin();
  if(b + n >= p || b + n < b/*overflow*/) return 0;
  return pWasmStackPtr = p - n;
 }
@@ -261,7 +267,7 @@ SQLITE_WASM_EXPORT void * sqlite3_wasm_stack_alloc(int n){

 /*
 ** State for the "pseudo-stack" allocator implemented in
-** sqlite3_wasm_pstack_xyz(). In order to avoid colliding with
+** sqlite3__wasm_pstack_xyz(). In order to avoid colliding with
 ** Emscripten-controled stack space, it carves out a bit of stack
 ** memory to use for that purpose. This memory ends up in the
 ** WASM-managed memory, such that routines which manipulate the wasm
@@ -285,14 +291,14 @@ static struct {
 /*
 ** Returns the current pstack position.
 */
-SQLITE_WASM_EXPORT void * sqlite3_wasm_pstack_ptr(void){
+SQLITE_WASM_EXPORT void * sqlite3__wasm_pstack_ptr(void){
  return PStack.pPos;
 }
 /*
 ** Sets the pstack position poitner to p. Results are undefined if the
-** given value did not come from sqlite3_wasm_pstack_ptr().
+** given value did not come from sqlite3__wasm_pstack_ptr().
 */
-SQLITE_WASM_EXPORT void sqlite3_wasm_pstack_restore(unsigned char * p){
+SQLITE_WASM_EXPORT void sqlite3__wasm_pstack_restore(unsigned char * p){
  assert(p>=PStack.pBegin && p<=PStack.pEnd && p>=PStack.pPos);
  assert(0==((unsigned long long)p & 0x7));
  if(p>=PStack.pBegin && p<=PStack.pEnd /*&& p>=PStack.pPos*/){
@@ -307,7 +313,7 @@ SQLITE_WASM_EXPORT void sqlite3_wasm_pstack_restore(unsigned char * p){
 ** JS code from having to do so, and most uses of the pstack will
 ** call for doing so).
 */
-SQLITE_WASM_EXPORT void * sqlite3_wasm_pstack_alloc(int n){
+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 */;
@@ -318,9 +324,9 @@ SQLITE_WASM_EXPORT void * sqlite3_wasm_pstack_alloc(int n){
 }
 /*
 ** Return the number of bytes left which can be
-** sqlite3_wasm_pstack_alloc()'d.
+** sqlite3__wasm_pstack_alloc()'d.
 */
-SQLITE_WASM_EXPORT int sqlite3_wasm_pstack_remaining(void){
+SQLITE_WASM_EXPORT int sqlite3__wasm_pstack_remaining(void){
  assert(PStack.pPos >= PStack.pBegin);
  assert(PStack.pPos <= PStack.pEnd);
  return (int)(PStack.pPos - PStack.pBegin);
@@ -331,7 +337,7 @@ SQLITE_WASM_EXPORT int sqlite3_wasm_pstack_remaining(void){
 ** any space which is currently allocated. This value is a
 ** compile-time constant.
 */
-SQLITE_WASM_EXPORT int sqlite3_wasm_pstack_quota(void){
+SQLITE_WASM_EXPORT int sqlite3__wasm_pstack_quota(void){
  return (int)(PStack.pEnd - PStack.pBegin);
 }

@@ -350,7 +356,7 @@ SQLITE_WASM_EXPORT int sqlite3_wasm_pstack_quota(void){
 ** Returns err_code.
 */
 SQLITE_WASM_EXPORT
-int sqlite3_wasm_db_error(sqlite3*db, int err_code, const char *zMsg){
+int sqlite3__wasm_db_error(sqlite3*db, int err_code, const char *zMsg){
  if( db!=0 ){
    if( 0!=zMsg ){
      const int nMsg = sqlite3Strlen30(zMsg);
@@ -374,7 +380,7 @@ struct WasmTestStruct {
 };
 typedef struct WasmTestStruct WasmTestStruct;
 SQLITE_WASM_EXPORT
-void sqlite3_wasm_test_struct(WasmTestStruct * s){
+void sqlite3__wasm_test_struct(WasmTestStruct * s){
  if(s){
    s->v4 *= 2;
    s->v8 = s->v4 * 2;
@@ -402,7 +408,7 @@ void sqlite3_wasm_test_struct(WasmTestStruct * s){
 ** increased. In debug builds that will trigger an assert().
 */
 SQLITE_WASM_EXPORT
-const char * sqlite3_wasm_enum_json(void){
+const char * sqlite3__wasm_enum_json(void){
  static char aBuffer[1024 * 20] = {0} /* where the JSON goes */;
  int n = 0, nChildren = 0, nStruct = 0
    /* output counters for figuring out where commas go */;
@@ -419,7 +425,7 @@ const char * sqlite3_wasm_enum_json(void){

 /* Core output macros... */
 #define lenCheck assert(zPos < zEnd - 128 \
-  && "sqlite3_wasm_enum_json() buffer is too small."); \
+  && "sqlite3__wasm_enum_json() buffer is too small."); \
  if( zPos >= zEnd - 128 ) return 0
 #define outf(format,...) \
  zPos += snprintf(zPos, ((size_t)(zEnd - zPos)), format, __VA_ARGS__); \
@@ -1097,7 +1103,7 @@ const char * sqlite3_wasm_enum_json(void){
      M(xShadowName,    "i(s)");
    } _StructBinder;
 #undef CurrentStruct
-    
+
    /**
     ** Workaround: in order to map the various inner structs from
     ** sqlite3_index_info, we have to uplift those into constructs we
@@ -1214,7 +1220,7 @@ const char * sqlite3_wasm_enum_json(void){
 ** call is returned.
 */
 SQLITE_WASM_EXPORT
-int sqlite3_wasm_vfs_unlink(sqlite3_vfs *pVfs, const char *zName){
+int sqlite3__wasm_vfs_unlink(sqlite3_vfs *pVfs, const char *zName){
  int rc = SQLITE_MISUSE /* ??? */;
  if( 0==pVfs && 0!=zName ) pVfs = sqlite3_vfs_find(0);
  if( zName && pVfs && pVfs->xDelete ){
@@ -1232,7 +1238,7 @@ int sqlite3_wasm_vfs_unlink(sqlite3_vfs *pVfs, const char *zName){
 ** given name is open.
 */
 SQLITE_WASM_EXPORT
-sqlite3_vfs * sqlite3_wasm_db_vfs(sqlite3 *pDb, const char *zDbName){
+sqlite3_vfs * sqlite3__wasm_db_vfs(sqlite3 *pDb, const char *zDbName){
  sqlite3_vfs * pVfs = 0;
  sqlite3_file_control(pDb, zDbName ? zDbName : "main",
                       SQLITE_FCNTL_VFS_POINTER, &pVfs);
@@ -1255,7 +1261,7 @@ sqlite3_vfs * sqlite3_wasm_db_vfs(sqlite3 *pDb, const char *zDbName){
 ** SQLITE_MISUSE if pDb is NULL.
 */
 SQLITE_WASM_EXPORT
-int sqlite3_wasm_db_reset(sqlite3 *pDb){
+int sqlite3__wasm_db_reset(sqlite3 *pDb){
  int rc = SQLITE_MISUSE;
  if( pDb ){
    sqlite3_table_column_metadata(pDb, "main", 0, 0, 0, 0, 0, 0, 0);
@@ -1282,11 +1288,11 @@ int sqlite3_wasm_db_reset(sqlite3 *pDb){
 ** takes no measures to ensure that is the case.
 **
 ** This implementation appears to work fine, but
-** sqlite3_wasm_db_serialize() is arguably the better way to achieve
+** sqlite3__wasm_db_serialize() is arguably the better way to achieve
 ** this.
 */
 SQLITE_WASM_EXPORT
-int sqlite3_wasm_db_export_chunked( sqlite3* pDb,
+int sqlite3__wasm_db_export_chunked( sqlite3* pDb,
                                    int (*xCallback)(unsigned const char *zOut, int n) ){
  sqlite3_int64 nSize = 0;
  sqlite3_int64 nPos = 0;
@@ -1337,7 +1343,7 @@ int sqlite3_wasm_db_export_chunked( sqlite3* pDb,
 ** sqlite3_free() to free it.
 */
 SQLITE_WASM_EXPORT
-int sqlite3_wasm_db_serialize( sqlite3 *pDb, const char *zSchema,
+int sqlite3__wasm_db_serialize( sqlite3 *pDb, const char *zSchema,
                               unsigned char **pOut,
                               sqlite3_int64 *nOut, unsigned int mFlags ){
  unsigned char * z;
@@ -1360,7 +1366,7 @@ int sqlite3_wasm_db_serialize( sqlite3 *pDb, const char *zSchema,
 ** this function's out-of-scope use of the sqlite3_vfs/file/io_methods
 ** APIs leads to triggering of assertions in the core library. Its use
 ** is now deprecated and VFS-specific APIs for importing files need to
-** be found to replace it. sqlite3_wasm_posix_create_file() is
+** be found to replace it. sqlite3__wasm_posix_create_file() is
 ** suitable for the "unix" family of VFSes.
 **
 ** Creates a new file using the I/O API of the given VFS, containing
@@ -1401,7 +1407,7 @@ int sqlite3_wasm_db_serialize( sqlite3 *pDb, const char *zSchema,
 ** support is disabled or unavailable.
 */
 SQLITE_WASM_EXPORT
-int sqlite3_wasm_vfs_create_file( sqlite3_vfs *pVfs,
+int sqlite3__wasm_vfs_create_file( sqlite3_vfs *pVfs,
                                  const char *zFilename,
                                  const unsigned char * pData,
                                  int nData ){
@@ -1491,7 +1497,7 @@ int sqlite3_wasm_vfs_create_file( sqlite3_vfs *pVfs,
 ** SQLITE_IOERR on error.
 */
 SQLITE_WASM_EXPORT
-int sqlite3_wasm_posix_create_file( const char *zFilename,
+int sqlite3__wasm_posix_create_file( const char *zFilename,
                                    const unsigned char * pData,
                                    int nData ){
  int rc;
@@ -1514,17 +1520,17 @@ int sqlite3_wasm_posix_create_file( const char *zFilename,
 ** for use by the sqlite project's own JS/WASM bindings.
 **
 ** Allocates sqlite3KvvfsMethods.nKeySize bytes from
-** sqlite3_wasm_pstack_alloc() and returns 0 if that allocation fails,
+** sqlite3__wasm_pstack_alloc() and returns 0 if that allocation fails,
 ** else it passes that string to kvstorageMakeKey() and returns a
 ** NUL-terminated pointer to that string. It is up to the caller to
-** use sqlite3_wasm_pstack_restore() to free the returned pointer.
+** use sqlite3__wasm_pstack_restore() to free the returned pointer.
 */
 SQLITE_WASM_EXPORT
-char * sqlite3_wasm_kvvfsMakeKeyOnPstack(const char *zClass,
+char * sqlite3__wasm_kvvfsMakeKeyOnPstack(const char *zClass,
                                         const char *zKeyIn){
  assert(sqlite3KvvfsMethods.nKeySize>24);
  char *zKeyOut =
-    (char *)sqlite3_wasm_pstack_alloc(sqlite3KvvfsMethods.nKeySize);
+    (char *)sqlite3__wasm_pstack_alloc(sqlite3KvvfsMethods.nKeySize);
  if(zKeyOut){
    kvstorageMakeKey(zClass, zKeyIn, zKeyOut);
  }
@@ -1539,7 +1545,7 @@ char * sqlite3_wasm_kvvfsMakeKeyOnPstack(const char *zClass,
 ** I/O methods and associated state.
 */
 SQLITE_WASM_EXPORT
-sqlite3_kvvfs_methods * sqlite3_wasm_kvvfs_methods(void){
+sqlite3_kvvfs_methods * sqlite3__wasm_kvvfs_methods(void){
  return &sqlite3KvvfsMethods;
 }

@@ -1554,7 +1560,7 @@ sqlite3_kvvfs_methods * sqlite3_wasm_kvvfs_methods(void){
 ** valid value.
 */
 SQLITE_WASM_EXPORT
-int sqlite3_wasm_vtab_config(sqlite3 *pDb, int op, int arg){
+int sqlite3__wasm_vtab_config(sqlite3 *pDb, int op, int arg){
  switch(op){
  case SQLITE_VTAB_DIRECTONLY:
  case SQLITE_VTAB_INNOCUOUS:
@@ -1574,7 +1580,7 @@ int sqlite3_wasm_vtab_config(sqlite3 *pDb, int op, int arg){
 ** (int,int*) variadic args.
 */
 SQLITE_WASM_EXPORT
-int sqlite3_wasm_db_config_ip(sqlite3 *pDb, int op, int arg1, int* pArg2){
+int sqlite3__wasm_db_config_ip(sqlite3 *pDb, int op, int arg1, int* pArg2){
  switch(op){
    case SQLITE_DBCONFIG_ENABLE_FKEY:
    case SQLITE_DBCONFIG_ENABLE_TRIGGER:
@@ -1607,7 +1613,7 @@ int sqlite3_wasm_db_config_ip(sqlite3 *pDb, int op, int arg1, int* pArg2){
 ** (void*,int,int) variadic args.
 */
 SQLITE_WASM_EXPORT
-int sqlite3_wasm_db_config_pii(sqlite3 *pDb, int op, void * pArg1, int arg2, int arg3){
+int sqlite3__wasm_db_config_pii(sqlite3 *pDb, int op, void * pArg1, int arg2, int arg3){
  switch(op){
    case SQLITE_DBCONFIG_LOOKASIDE:
      return sqlite3_db_config(pDb, op, pArg1, arg2, arg3);
@@ -1623,7 +1629,7 @@ int sqlite3_wasm_db_config_pii(sqlite3 *pDb, int op, void * pArg1, int arg2, int
 ** (const char *) variadic args.
 */
 SQLITE_WASM_EXPORT
-int sqlite3_wasm_db_config_s(sqlite3 *pDb, int op, const char *zArg){
+int sqlite3__wasm_db_config_s(sqlite3 *pDb, int op, const char *zArg){
  switch(op){
    case SQLITE_DBCONFIG_MAINDBNAME:
      return sqlite3_db_config(pDb, op, zArg);
@@ -1640,7 +1646,7 @@ int sqlite3_wasm_db_config_s(sqlite3 *pDb, int op, const char *zArg){
 ** a single integer argument.
 */
 SQLITE_WASM_EXPORT
-int sqlite3_wasm_config_i(int op, int arg){
+int sqlite3__wasm_config_i(int op, int arg){
  return sqlite3_config(op, arg);
 }

@@ -1652,7 +1658,7 @@ int sqlite3_wasm_config_i(int op, int arg){
 ** two int arguments.
 */
 SQLITE_WASM_EXPORT
-int sqlite3_wasm_config_ii(int op, int arg1, int arg2){
+int sqlite3__wasm_config_ii(int op, int arg1, int arg2){
  return sqlite3_config(op, arg1, arg2);
 }

@@ -1664,7 +1670,7 @@ int sqlite3_wasm_config_ii(int op, int arg1, int arg2){
 ** a single i64 argument.
 */
 SQLITE_WASM_EXPORT
-int sqlite3_wasm_config_j(int op, sqlite3_int64 arg){
+int sqlite3__wasm_config_j(int op, sqlite3_int64 arg){
  return sqlite3_config(op, arg);
 }

@@ -1683,17 +1689,17 @@ int sqlite3_wasm_config_j(int op, sqlite3_int64 arg){
 **
 ** ```
 ** sqlite3.wasm.functionEntry(
-**   sqlite3.wasm.exports.sqlite3_wasm_ptr_to_sqlite3_free()
+**   sqlite3.wasm.exports.sqlite3__wasm_ptr_to_sqlite3_free()
 ** ) === sqlite3.wasm.exports.sqlite3_free
 ** ```
 **
 ** Using a function to return this pointer, as opposed to exporting it
-** via sqlite3_wasm_enum_json(), is an attempt to work around a
+** via sqlite3__wasm_enum_json(), is an attempt to work around a
 ** Safari-specific quirk covered at
 ** https://sqlite.org/forum/info/e5b20e1feb37a19a.
 **/
 SQLITE_WASM_EXPORT
-void * sqlite3_wasm_ptr_to_sqlite3_free(void){
+void * sqlite3__wasm_ptr_to_sqlite3_free(void){
  return (void*)sqlite3_free;
 }
 #endif
@@ -1723,7 +1729,7 @@ void * sqlite3_wasm_ptr_to_sqlite3_free(void){
 ** defined, SQLITE_NOTFOUND is returned without side effects.
 */
 SQLITE_WASM_EXPORT
-int sqlite3_wasm_init_wasmfs(const char *zMountPoint){
+int sqlite3__wasm_init_wasmfs(const char *zMountPoint){
  static backend_t pOpfs = 0;
  if( !zMountPoint || !*zMountPoint ) zMountPoint = "/opfs";
  if( !pOpfs ){
@@ -1743,7 +1749,7 @@ int sqlite3_wasm_init_wasmfs(const char *zMountPoint){
 }
 #else
 SQLITE_WASM_EXPORT
-int sqlite3_wasm_init_wasmfs(const char *zUnused){
+int sqlite3__wasm_init_wasmfs(const char *zUnused){
  //emscripten_console_warn("WASMFS OPFS is not compiled in.");
  if(zUnused){/*unused*/}
  return SQLITE_NOTFOUND;
@@ -1753,51 +1759,51 @@ int sqlite3_wasm_init_wasmfs(const char *zUnused){
 #if SQLITE_WASM_TESTS

 SQLITE_WASM_EXPORT
-int sqlite3_wasm_test_intptr(int * p){
+int sqlite3__wasm_test_intptr(int * p){
  return *p = *p * 2;
 }

 SQLITE_WASM_EXPORT
-void * sqlite3_wasm_test_voidptr(void * p){
+void * sqlite3__wasm_test_voidptr(void * p){
  return p;
 }

 SQLITE_WASM_EXPORT
-int64_t sqlite3_wasm_test_int64_max(void){
+int64_t sqlite3__wasm_test_int64_max(void){
  return (int64_t)0x7fffffffffffffff;
 }

 SQLITE_WASM_EXPORT
-int64_t sqlite3_wasm_test_int64_min(void){
-  return ~sqlite3_wasm_test_int64_max();
+int64_t sqlite3__wasm_test_int64_min(void){
+  return ~sqlite3__wasm_test_int64_max();
 }

 SQLITE_WASM_EXPORT
-int64_t sqlite3_wasm_test_int64_times2(int64_t x){
+int64_t sqlite3__wasm_test_int64_times2(int64_t x){
  return x * 2;
 }

 SQLITE_WASM_EXPORT
-void sqlite3_wasm_test_int64_minmax(int64_t * min, int64_t *max){
-  *max = sqlite3_wasm_test_int64_max();
-  *min = sqlite3_wasm_test_int64_min();
+void sqlite3__wasm_test_int64_minmax(int64_t * min, int64_t *max){
+  *max = sqlite3__wasm_test_int64_max();
+  *min = sqlite3__wasm_test_int64_min();
  /*printf("minmax: min=%lld, max=%lld\n", *min, *max);*/
 }

 SQLITE_WASM_EXPORT
-int64_t sqlite3_wasm_test_int64ptr(int64_t * p){
-  /*printf("sqlite3_wasm_test_int64ptr( @%lld = 0x%llx )\n", (int64_t)p, *p);*/
+int64_t sqlite3__wasm_test_int64ptr(int64_t * p){
+  /*printf("sqlite3__wasm_test_int64ptr( @%lld = 0x%llx )\n", (int64_t)p, *p);*/
  return *p = *p * 2;
 }

 SQLITE_WASM_EXPORT
-void sqlite3_wasm_test_stack_overflow(int recurse){
-  if(recurse) sqlite3_wasm_test_stack_overflow(recurse);
+void sqlite3__wasm_test_stack_overflow(int recurse){
+  if(recurse) sqlite3__wasm_test_stack_overflow(recurse);
 }

 /* For testing the 'string:dealloc' whwasmutil.xWrap() conversion. */
 SQLITE_WASM_EXPORT
-char * sqlite3_wasm_test_str_hello(int fail){
+char * sqlite3__wasm_test_str_hello(int fail){
  char * s = fail ? 0 : (char *)sqlite3_malloc(6);
  if(s){
    memcpy(s, "hello", 5);
@@ -1832,12 +1838,12 @@ char * sqlite3_wasm_test_str_hello(int fail){
 **                optional + or - sign in front, or a hexadecimal
 **                literal of the form 0x...
 */
-static int sqlite3_wasm_SQLTester_strnotglob(const char *zGlob, const char *z){
+static int sqlite3__wasm_SQLTester_strnotglob(const char *zGlob, const char *z){
  int c, c2;
  int invert;
  int seen;
  typedef int (*recurse_f)(const char *,const char *);
-  static const recurse_f recurse = sqlite3_wasm_SQLTester_strnotglob;
+  static const recurse_f recurse = sqlite3__wasm_SQLTester_strnotglob;

  while( (c = (*(zGlob++)))!=0 ){
    if( c=='*' ){
@@ -1912,11 +1918,10 @@ static int sqlite3_wasm_SQLTester_strnotglob(const char *zGlob, const char *z){
 }

 SQLITE_WASM_EXPORT
-int sqlite3_wasm_SQLTester_strglob(const char *zGlob, const char *z){
- return !sqlite3_wasm_SQLTester_strnotglob(zGlob, z);
+int sqlite3__wasm_SQLTester_strglob(const char *zGlob, const char *z){
+ return !sqlite3__wasm_SQLTester_strnotglob(zGlob, z);
 }

-
 #endif /* SQLITE_WASM_TESTS */

 #undef SQLITE_WASM_EXPORT
@@ -1,3 +1,4 @@
+//#ifnot omit-oo1
 /*
  2022-08-24

@@ -276,3 +277,6 @@ globalThis.sqlite3Worker1Promiser.defaultConfig = {
  ,
  onerror: (...args)=>console.error('worker1 promiser error',...args)
 };
+//#else
+/* Built with the omit-oo1 flag. */
+//#endif ifnot omit-oo1
@@ -1,3 +1,4 @@
+//#ifnot omit-oo1
 /*
  2022-05-23

@@ -48,3 +49,6 @@ import {default as sqlite3InitModule} from './sqlite3-bundler-friendly.mjs';
 }
 //#endif
 sqlite3InitModule().then(sqlite3 => sqlite3.initWorker1API());
+//#else
+/* Built with the omit-oo1 flag. */
+//#endif ifnot omit-oo1
@@ -374,9 +374,7 @@
                 "for use in the dev console.", sqlite3);
    globalThis.sqlite3 = sqlite3;
    const dbVfs = sqlite3.wasm.xWrap('fiddle_db_vfs', "*", ['string']);
-    fiddleModule.fsUnlink = (fn)=>{
-      return sqlite3.wasm.sqlite3_wasm_vfs_unlink(dbVfs(0), fn);
-    };
+    fiddleModule.fsUnlink = (fn)=>fiddleModule.FS.unlink(fn);
    wMsg('fiddle-ready');
  }).catch(e=>{
    console.error("Fiddle worker init failed:",e);
@@ -206,9 +206,8 @@ const MyBinder = StructBinderFactory({
 It also offers a number of other settings, but all are optional except
 for the ones shown above. Those three config options abstract away
 details which are specific to a given WASM environment. They provide
-the WASM "heap" memory (a byte array), the memory allocator, and the
-deallocator. In a conventional Emscripten setup, that config might
-simply look like:
+the WASM "heap" memory, the memory allocator, and the deallocator. In
+a conventional Emscripten setup, that config might simply look like:

 >  
 ```javascript
@@ -111,10 +111,6 @@
  self.sqlite3InitModule(EmscriptenModule).then(async (sqlite3)=>{
    const S = globalThis.S = App.sqlite3 = sqlite3;
    log("Loaded speedtest1 module. Setting up...");
-    App.vfsUnlink = function(pDb, fname){
-      const pVfs = S.wasm.sqlite3_wasm_db_vfs(pDb, 0);
-      if(pVfs) S.wasm.sqlite3_wasm_vfs_unlink(pVfs, fname||0);
-    };
    App.pDir = wasmfsDir(S.wasm);
    App.wasm = S.wasm;
    //if(App.pDir) log("Persistent storage:",pDir);
@@ -63,7 +63,7 @@ globalThis.sqlite3InitModule = sqlite3InitModule;
  /* Predicate for tests/groups. */
  const testIsTodo = ()=>false;
  const haveWasmCTests = ()=>{
-    return !!wasm.exports.sqlite3_wasm_test_intptr;
+    return !!wasm.exports.sqlite3__wasm_test_intptr;
  };
  const hasOpfs = ()=>{
    return globalThis.FileSystemHandle
@@ -722,7 +722,7 @@ globalThis.sqlite3InitModule = sqlite3InitModule;

      //log("xCall()...");
      {
-        const pJson = w.xCall('sqlite3_wasm_enum_json');
+        const pJson = w.xCall('sqlite3__wasm_enum_json');
        T.assert(Number.isFinite(pJson)).assert(w.cstrlen(pJson)>300);
      }

@@ -736,9 +736,9 @@ globalThis.sqlite3InitModule = sqlite3InitModule;
        T.mustThrowMatching(()=>fw(1), /requires 0 arg/);
        let rc = fw();
        T.assert('string'===typeof rc).assert(rc.length>5);
-        rc = w.xCallWrapped('sqlite3_wasm_enum_json','*');
+        rc = w.xCallWrapped('sqlite3__wasm_enum_json','*');
        T.assert(rc>0 && Number.isFinite(rc));
-        rc = w.xCallWrapped('sqlite3_wasm_enum_json','utf8');
+        rc = w.xCallWrapped('sqlite3__wasm_enum_json','utf8');
        T.assert('string'===typeof rc).assert(rc.length>300);


@@ -821,7 +821,7 @@ globalThis.sqlite3InitModule = sqlite3InitModule;

        if(haveWasmCTests()){
          if(!sqlite3.config.useStdAlloc){
-            fw = w.xWrap('sqlite3_wasm_test_str_hello', 'utf8:dealloc',['i32']);
+            fw = w.xWrap('sqlite3__wasm_test_str_hello', 'utf8:dealloc',['i32']);
            rc = fw(0);
            T.assert('hello'===rc);
            rc = fw(1);
@@ -831,14 +831,14 @@ globalThis.sqlite3InitModule = sqlite3InitModule;
          if(w.bigIntEnabled){
            w.xWrap.resultAdapter('thrice', (v)=>3n*BigInt(v));
            w.xWrap.argAdapter('twice', (v)=>2n*BigInt(v));
-            fw = w.xWrap('sqlite3_wasm_test_int64_times2','thrice','twice');
+            fw = w.xWrap('sqlite3__wasm_test_int64_times2','thrice','twice');
            rc = fw(1);
            T.assert(12n===rc);

            w.scopedAllocCall(function(){
              const pI1 = w.scopedAlloc(8), pI2 = pI1+4;
              w.pokePtr([pI1, pI2], 0);
-              const f = w.xWrap('sqlite3_wasm_test_int64_minmax',undefined,['i64*','i64*']);
+              const f = w.xWrap('sqlite3__wasm_test_int64_minmax',undefined,['i64*','i64*']);
              const [r1, r2] = w.peek64([pI1, pI2]);
              T.assert(!Number.isSafeInteger(r1)).assert(!Number.isSafeInteger(r2));
            });
@@ -942,7 +942,7 @@ globalThis.sqlite3InitModule = sqlite3InitModule;
          assert(wts.pointer>0).assert(0===wts.$v4).assert(0n===wts.$v8).
          assert(0===wts.$ppV).assert(0===wts.$xFunc);
        const testFunc =
-              W.xGet('sqlite3_wasm_test_struct'/*name gets mangled in -O3 builds!*/);
+              W.xGet('sqlite3__wasm_test_struct'/*name gets mangled in -O3 builds!*/);
        let counter = 0;
        //log("wts.pointer =",wts.pointer);
        const wtsFunc = function(arg){
@@ -1128,7 +1128,7 @@ globalThis.sqlite3InitModule = sqlite3InitModule;
  T.g('sqlite3.oo1')
    .t('Create db', function(sqlite3){
      const dbFile = '/tester1.db';
-      wasm.sqlite3_wasm_vfs_unlink(0, dbFile);
+      sqlite3.util.sqlite3__wasm_vfs_unlink(0, dbFile);
      const db = this.db = new sqlite3.oo1.DB(dbFile, 0 ? 'ct' : 'c');
      db.onclose = {
        disposeAfter: [],
@@ -1459,7 +1459,7 @@ globalThis.sqlite3InitModule = sqlite3InitModule;
      rv = db.exec("SELECT 1 WHERE 0",{rowMode: 0});
      T.assert(Array.isArray(rv)).assert(0===rv.length);
      if(wasm.bigIntEnabled && haveWasmCTests()){
-        const mI = wasm.xCall('sqlite3_wasm_test_int64_max');
+        const mI = wasm.xCall('sqlite3__wasm_test_int64_max');
        const b = BigInt(Number.MAX_SAFE_INTEGER * 2);
        T.assert(b === db.selectValue("SELECT "+b)).
          assert(b === db.selectValue("SELECT ?", b)).
@@ -1685,7 +1685,7 @@ globalThis.sqlite3InitModule = sqlite3InitModule;
          T.assert(n>0 && db2.selectValue(sql) === n);
        }finally{
          db2.close();
-          wasm.sqlite3_wasm_vfs_unlink(0, filename);
+          sqlite3.util.sqlite3__wasm_vfs_unlink(0, filename);
        }
      }
    }/*sqlite3_js_posix_create_file()*/)
@@ -2075,7 +2075,7 @@ globalThis.sqlite3InitModule = sqlite3InitModule;
        try{
          ptrInt = w.scopedAlloc(4);
          w.poke32(ptrInt,origValue);
-          const cf = w.xGet('sqlite3_wasm_test_intptr');
+          const cf = w.xGet('sqlite3__wasm_test_intptr');
          const oldPtrInt = ptrInt;
          T.assert(origValue === w.peek32(ptrInt));
          const rc = cf(ptrInt);
@@ -2090,13 +2090,13 @@ globalThis.sqlite3InitModule = sqlite3InitModule;
            const v64 = ()=>w.peek64(pi64)
            T.assert(v64() == o64);
            //T.assert(o64 === w.peek64(pi64));
-            const cf64w = w.xGet('sqlite3_wasm_test_int64ptr');
+            const cf64w = w.xGet('sqlite3__wasm_test_int64ptr');
            cf64w(pi64);
            T.assert(v64() == BigInt(2 * o64));
            cf64w(pi64);
            T.assert(v64() == BigInt(4 * o64));

-            const biTimes2 = w.xGet('sqlite3_wasm_test_int64_times2');
+            const biTimes2 = w.xGet('sqlite3__wasm_test_int64_times2');
            T.assert(BigInt(2 * o64) ===
                     biTimes2(BigInt(o64)/*explicit conv. required to avoid TypeError
                                           in the call :/ */));
@@ -2106,13 +2106,13 @@ globalThis.sqlite3InitModule = sqlite3InitModule;
            const g64 = (p)=>w.peek64(p);
            w.poke64([pMin, pMax], 0);
            const minMaxI64 = [
-              w.xCall('sqlite3_wasm_test_int64_min'),
-              w.xCall('sqlite3_wasm_test_int64_max')
+              w.xCall('sqlite3__wasm_test_int64_min'),
+              w.xCall('sqlite3__wasm_test_int64_max')
            ];
            T.assert(minMaxI64[0] < BigInt(Number.MIN_SAFE_INTEGER)).
              assert(minMaxI64[1] > BigInt(Number.MAX_SAFE_INTEGER));
            //log("int64_min/max() =",minMaxI64, typeof minMaxI64[0]);
-            w.xCall('sqlite3_wasm_test_int64_minmax', pMin, pMax);
+            w.xCall('sqlite3__wasm_test_int64_minmax', pMin, pMax);
            T.assert(g64(pMin) === minMaxI64[0], "int64 mismatch").
              assert(g64(pMax) === minMaxI64[1], "int64 mismatch");
            //log("pMin",g64(pMin), "pMax",g64(pMax));
@@ -2560,7 +2560,7 @@ globalThis.sqlite3InitModule = sqlite3InitModule;
  ////////////////////////////////////////////////////////////////////////
    .t('Close db', function(){
      T.assert(this.db).assert(wasm.isPtr(this.db.pointer));
-      //wasm.sqlite3_wasm_db_reset(this.db); // will leak virtual tables!
+      //wasm.sqlite3__wasm_db_reset(this.db); // will leak virtual tables!
      this.db.close();
      T.assert(!this.db.pointer);
    })
@@ -2892,7 +2892,7 @@ globalThis.sqlite3InitModule = sqlite3InitModule;
        const pVfs = this.opfsVfs = capi.sqlite3_vfs_find('opfs');
        T.assert(pVfs);
        const unlink = this.opfsUnlink =
-              (fn=filename)=>{wasm.sqlite3_wasm_vfs_unlink(pVfs,fn)};
+              (fn=filename)=>{sqlite3.util.sqlite3__wasm_vfs_unlink(pVfs,fn)};
        unlink();
        let db = new sqlite3.oo1.OpfsDb(filename);
        try {
@@ -3209,6 +3209,7 @@ globalThis.sqlite3InitModule = sqlite3InitModule;
    print: log,
    printErr: error
  }).then(async function(sqlite3){
+    TestUtil.assert(!!sqlite3.util);
    log("Done initializing WASM/JS bits. Running tests...");
    sqlite3.config.warn("Installing sqlite3 bits as global S for local dev/test purposes.");
    globalThis.S = sqlite3;
@@ -3227,9 +3228,9 @@ globalThis.sqlite3InitModule = sqlite3InitModule;
      logClass('warning',"BigInt/int64 support is disabled.");
    }
    if(haveWasmCTests()){
-      log("sqlite3_wasm_test_...() APIs are available.");
+      log("sqlite3__wasm_test_...() APIs are available.");
    }else{
-      logClass('warning',"sqlite3_wasm_test_...() APIs unavailable.");
+      logClass('warning',"sqlite3__wasm_test_...() APIs unavailable.");
    }
    log("registered vfs list =",capi.sqlite3_js_vfs_list().join(', '));
    TestUtil.runTests(sqlite3);
@@ -360,6 +360,7 @@ TESTSRC += \
  $(TOP)/ext/misc/percentile.c \
  $(TOP)/ext/misc/prefixes.c \
  $(TOP)/ext/misc/qpvtab.c \
+  $(TOP)/ext/misc/randomjson.c \
  $(TOP)/ext/misc/regexp.c \
  $(TOP)/ext/misc/remember.c \
  $(TOP)/ext/misc/series.c \
@@ -526,12 +527,15 @@ FUZZCHECK_OPT += -DSQLITE_ENABLE_RTREE
 FUZZCHECK_OPT += -DSQLITE_ENABLE_GEOPOLY
 FUZZCHECK_OPT += -DSQLITE_ENABLE_DBSTAT_VTAB
 FUZZCHECK_OPT += -DSQLITE_ENABLE_BYTECODE_VTAB
+FUZZCHECK_OPT += -DSQLITE_STRICT_SUBTYPE=1
+FUZZCHECK_OPT += -DSQLITE_STATIC_RANDOMJSON
 FUZZSRC += $(TOP)/test/fuzzcheck.c
 FUZZSRC += $(TOP)/test/ossfuzz.c
 FUZZSRC += $(TOP)/test/vt02.c
 FUZZSRC += $(TOP)/test/fuzzinvariants.c
 FUZZSRC += $(TOP)/ext/recover/dbdata.c
 FUZZSRC += $(TOP)/ext/recover/sqlite3recover.c
+FUZZSRC += $(TOP)/ext/misc/randomjson.c
 DBFUZZ_OPT =
 KV_OPT = -DSQLITE_THREADSAFE=0 -DSQLITE_DIRECT_OVERFLOW_READ
 ST_OPT = -DSQLITE_THREADSAFE=0
@@ -898,6 +902,8 @@ TESTFIXTURE_FLAGS += -DSQLITE_ENABLE_DBPAGE_VTAB
 TESTFIXTURE_FLAGS += -DSQLITE_ENABLE_BYTECODE_VTAB
 TESTFIXTURE_FLAGS += -DTCLSH_INIT_PROC=sqlite3TestInit
 TESTFIXTURE_FLAGS += -DSQLITE_CKSUMVFS_STATIC
+TESTFIXTURE_FLAGS += -DSQLITE_STATIC_RANDOMJSON
+TESTFIXTURE_FLAGS += -DSQLITE_STRICT_SUBTYPE=1

 testfixture$(EXE): $(TESTSRC2) libsqlite3.a $(TESTSRC) $(TOP)/src/tclsqlite.c
 	$(TCCX) $(TCL_FLAGS) $(TESTFIXTURE_FLAGS)                            \
@@ -1,13 +1,13 @@
-C Pass\ssubtype\sinformation\sthrough\sthe\saggregate\sORDER\sBY\ssorter\sfor\naggregate\sfunctions\sthat\suse\ssubtype\sinformation.
-D 2023-12-14T13:58:50.159
+C Optimizations\sto\sParseFinalize()\sto\smake\sup\sfor\sthe\sextra\scleanup\sassociated\nwith\sthe\sallocated\sparser\sstack.\s\sThis\sbranch\snow\sruns\sfaster\sthan\strunk\nand\sis\sless\sthan\s300\sbytes\slarger.
+D 2024-01-27T02:21:25.832
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
-F Makefile.in 890caf094636c308bc981032baf8f9208bf307755f9197ae4218a9fbcec2e449
+F Makefile.in 24be65ae641c5727bbc247d60286a15ecc24fb80f14f8fb2d32533bf0ec96e79
 F Makefile.linux-gcc f3842a0b1efbfbb74ac0ef60e56b301836d05b4d867d014f714fa750048f1ab6
-F Makefile.msc 59bb36dba001f0b38212be0794fb838f25371008b180929bcf08aa799694c168
+F Makefile.msc df56c06ef05add5ebcdcc9d4823fb2ec66ac16b06acb6971a7420859025886fa
 F README.md 6358805260a03ebead84e168bbf3740ddf3f683b477e478567186aa7afb490d3
-F VERSION 73573d4545343f001bf5dc5461173a7c78c203dd046cabcf99153878cf25d3a6
+F VERSION c84541c6a9e8426462176fbb1f9ecb5cfd7d1bb56228053ff7eeba8841673eb6
 F aclocal.m4 a5c22d164aff7ed549d53a90fa56d56955281f50
 F art/sqlite370.eps aa97a671332b432a54e1d74ff5e8775be34200c2
 F art/sqlite370.ico af56c1d00fee7cd4753e8631ed60703ed0fc6e90
@@ -15,14 +15,14 @@ F art/sqlite370.jpg d512473dae7e378a67e28ff96a34da7cb331def2
 F autoconf/INSTALL 83e4a25da9fd053c7b3665eaaaf7919707915903
 F autoconf/Makefile.am adedc1324b6a87fdd1265ddd336d2fb7d4f36a0e77b86ea553ae7cc4ea239347
 F autoconf/Makefile.fallback 22fe523eb36dfce31e0f6349f782eb084e86a5620b2b0b4f84a2d6133f53f5ac
-F autoconf/Makefile.msc 34f8c222846db1b354720c8a78a4fa7dec9176ea447c0fffdf442b7f74e8b1df
+F autoconf/Makefile.msc ac338c36a338f6b49475da71930f45145a181d6b551578d5a7a64f113ef27b2c
 F autoconf/README.first 6c4f34fe115ff55d4e8dbfa3cecf04a0188292f7
 F autoconf/README.txt 42cfd21d0b19dc7d5d85fb5c405c5f3c6a4c923021c39128f6ba685355d8fd56
 F autoconf/configure.ac ec7fa914c5e74ff212fe879f9bb6918e1234497e05facfb641f30c4d5893b277
 F autoconf/tea/Makefile.in 106a96f2f745d41a0f6193f1de98d7355830b65d45032c18cd7c90295ec24196
 F autoconf/tea/README 3e9a3c060f29a44344ab50aec506f4db903fb873
 F autoconf/tea/aclocal.m4 52c47aac44ce0ddb1f918b6993e8beb8eee88f43
-F autoconf/tea/configure.ac 4c32b08691a5b296206b38422b53b92b65be3d3f6b3dd6552a50981a61f5acda
+F autoconf/tea/configure.ac 9e74135563a901d9b1a019bad1c9d73a6659fa32325f6a565bef72bfb0ec7297
 F autoconf/tea/doc/sqlite3.n e1fe45d4f5286ee3d0ccc877aca2a0def488e9bb
 F autoconf/tea/license.terms 13bd403c9610fd2b76ece0ab50c4c5eda933d523
 F autoconf/tea/pkgIndex.tcl.in b9eb6dd37f64e08e637d576b3c83259814b9cddd78bec4af2e5abfc6c5c750ce
@@ -33,13 +33,14 @@ F autoconf/tea/win/nmakehlp.c b01f822eabbe1ed2b64e70882d97d48402b42d2689a1ea0034
 F autoconf/tea/win/rules.vc c511f222b80064096b705dbeb97060ee1d6b6d63
 F config.guess 883205ddf25b46f10c181818bf42c09da9888884af96f79e1719264345053bd6
 F config.sub c2d0260f17f3e4bc0b6808fccf1b291cb5e9126c14fc5890efc77b9fd0175559
-F configure bcb1042e92775424a1021d2f4c89c78a699a6225df01fa8c593df7df0be6ad10 x
+F configure 40f7af9ed5ca0d44a4b9bc7ad34f1ee4867bb4eeb19e75036be6bed66193a498 x
 F configure.ac f25bd7843120f2c2b8bc9db5a92b0502bbdd28e68907415c3d42fc8e57c657b9
 F contrib/sqlitecon.tcl 210a913ad63f9f991070821e599d600bd913e0ad
 F doc/F2FS.txt c1d4a0ae9711cfe0e1d8b019d154f1c29e0d3abfe820787ba1e9ed7691160fcd
 F doc/compile-for-windows.md 50b27d77be96195c66031a3181cb8684ed822327ea834e07f9c014213e5e3bcf
 F doc/json-enhancements.md e356fc834781f1f1aa22ee300027a270b2c960122468499bf347bb123ce1ea4f
-F doc/lemon.html 44a53a1d2b42d7751f7b2f478efb23c978e258d794bfd172442307a755b9fa44
+F doc/jsonb.md 5fab4b8613aa9153fbeb6259297bd4697988af8b3d23900deba588fa7841456b
+F doc/lemon.html 8b266ff711d2ec7f867c3dca37634963f48a630329908cc282beebfa8c708706
 F doc/pager-invariants.txt 27fed9a70ddad2088750c4a2b493b63853da2710
 F doc/testrunner.md 8d36ec692cf4994bb66d84a4645b9afa1ce9d47dc12cbf8d437c5a5fb6ddeedb
 F doc/trusted-schema.md 33625008620e879c7bcfbbfa079587612c434fa094d338b08242288d358c3e8a
@@ -50,8 +51,8 @@ F ext/README.md fd5f78013b0a2bc6f0067afb19e6ad040e89a10179b4f6f03eee58fac5f169bd
 F ext/async/README.txt e12275968f6fde133a80e04387d0e839b0c51f91
 F ext/async/sqlite3async.c 6f247666b495c477628dd19364d279c78ea48cd90c72d9f9b98ad1aff3294f94
 F ext/async/sqlite3async.h 46b47c79357b97ad85d20d2795942c0020dc20c532114a49808287f04aa5309a
-F ext/consio/console_io.c 097323f60037d70523421f0248958d2280851f8ff2f9a443d4ee1474c4769118 x
-F ext/consio/console_io.h 3228dff1717481202a24f6dcf45ce0b75e7a778bf6877089518a44e1473b76a3
+F ext/consio/console_io.c e1be639e79e54264b3ae97ca291728987a9aa82e6a4526458e6400f5e083e524 x
+F ext/consio/console_io.h 0548b83d7c4b7270ad544a67f2bb90cebc519637fa39b1838df4744cf0d87646
 F ext/expert/README.md b321c2762bb93c18ea102d5a5f7753a4b8bac646cb392b3b437f633caf2020c3
 F ext/expert/expert.c d548d603a4cc9e61f446cc179c120c6713511c413f82a4a32b1e1e69d3f086a4
 F ext/expert/expert1.test 0dd5cb096d66bed593e33053a3b364f6ef52ed72064bf5cf298364636dbf3cd6
@@ -62,9 +63,9 @@ 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 d01dfb641fc04efeeadcb94d7a8342eb07d71c1a3a3852ec8ab5e64c1fcdfff9
+F ext/fts3/fts3.c fd64a588471ce00b19da08acb0d6f904277a21ac1d15141d5913c83591afa027
 F ext/fts3/fts3.h 3a10a0af180d502cecc50df77b1b22df142817fe
-F ext/fts3/fts3Int.h be688580701d41340de73384e3acc8c55be12a438583207444bd5e20f9ef426c
+F ext/fts3/fts3Int.h 968f7d7cae541a6926146e9fd3fb2b2ccbd3845b7890a8ed03de0c06ac776682
 F ext/fts3/fts3_aux.c 7eab82a9cf0830f6551ba3abfdbe73ed39e322a4d3940ee82fbf723674ecd9f3
 F ext/fts3/fts3_expr.c 903bfb9433109fffb10e910d7066c49cbf8eeae316adc93f0499c4da7dfc932a
 F ext/fts3/fts3_hash.c 8b6e31bfb0844c27dc6092c2620bdb1fca17ed613072db057d96952c6bdb48b7
@@ -80,7 +81,7 @@ F ext/fts3/fts3_tokenizer.h 64c6ef6c5272c51ebe60fc607a896e84288fcbc3
 F ext/fts3/fts3_tokenizer1.c c1de4ae28356ad98ccb8b2e3388a7fdcce7607b5523738c9afb6275dab765154
 F ext/fts3/fts3_unicode.c de426ff05c1c2e7bce161cf6b706638419c3a1d9c2667de9cb9dc0458c18e226
 F ext/fts3/fts3_unicode2.c 416eb7e1e81142703520d284b768ca2751d40e31fa912cae24ba74860532bf0f
-F ext/fts3/fts3_write.c 5bb4721330ca589f906e72bb824dd4080b313c6d4c4231fa541e9db32dc67982
+F ext/fts3/fts3_write.c c2d7a8dfb6e7a00c6c88ce626785cf4c50ed18eba34b5fbd53cacd60af96d0f2
 F ext/fts3/fts3speed.tcl b54caf6a18d38174f1a6e84219950d85e98bb1e9
 F ext/fts3/tool/fts3cov.sh c331d006359456cf6f8f953e37f2b9c7d568f3863f00bb5f7eb87fea4ac01b73
 F ext/fts3/tool/fts3view.c 413c346399159df81f86c4928b7c4a455caab73bfbc8cd68f950f632e5751674
@@ -89,16 +90,16 @@ F ext/fts3/unicode/UnicodeData.txt cd07314edb62d49fde34debdaf92fa2aa69011e7
 F ext/fts3/unicode/mkunicode.tcl d5aebf022fa4577ee8cdf27468f0d847879993959101f6dbd6348ef0cfc324a7
 F ext/fts3/unicode/parseunicode.tcl a981bd6466d12dd17967515801c3ff23f74a281be1a03cf1e6f52a6959fc77eb
 F ext/fts5/extract_api_docs.tcl bc3a0ca78be7d3df08e7602c00ca48021ebae40682d75eb001bfdf6e54ffb44e
-F ext/fts5/fts5.h 9d7867cc63631296462c90bafe57c4881b56e480fa510ffaee6a77049258c714
+F ext/fts5/fts5.h ecba24fed7b359b3a53016bb07e411b3b4c9cdf163aa141006536423a63b611e
 F ext/fts5/fts5Int.h defa43c0932265138ee910ca416e6baccf8b774e0f3d610e74be1ab2880e9834
-F ext/fts5/fts5_aux.c ee770eec0af8646db9e18fc01a0dad7345b5f5e8cbba236704cfae2d777022ad
-F ext/fts5/fts5_buffer.c 3001fbabb585d6de52947b44b455235072b741038391f830d6b729225eeaf6a5
+F ext/fts5/fts5_aux.c 4584e88878e54828bf7d4d0d83deedd232ec60628b7731be02bad6adb62304b1
+F ext/fts5/fts5_buffer.c 0eec58bff585f1a44ea9147eae5da2447292080ea435957f7488c70673cb6f09
 F ext/fts5/fts5_config.c 8072a207034b51ae9b7694121d1b5715c794e94b275e088f70ae532378ca5cdf
-F ext/fts5/fts5_expr.c b1ec526371b9ffde82341423a5b9753c42cbea629a41b69f26fa377d13b95a8e
+F ext/fts5/fts5_expr.c e91156ebdcc08d837f4f324168f69f3c0d7fdef0e521fd561efb48ef3297b696
 F ext/fts5/fts5_hash.c adda4272be401566a6e0ba1acbe70ee5cb97fce944bc2e04dc707152a0ec91b1
-F ext/fts5/fts5_index.c ed206045ff0f2226d870fa41fba45f738c0cc953ab74ba68477091b9a574ccd3
-F ext/fts5/fts5_main.c b908696c52410e8383019ac0657c8a5cd0c8f60e78edc169e9b3c4b93f24c933
-F ext/fts5/fts5_storage.c 5d10b9bdcce5b90656cad13c7d12ad4148677d4b9e3fca0481fca56d6601426d
+F ext/fts5/fts5_index.c bb1965c3965f6fe5f64160bf1c0694a9684a790a783f293a76da1d38d319b258
+F ext/fts5/fts5_main.c cd56ed9619e9bc55ae603ecafd5965c3684bb4c1de7dd00893c307ddf98afe88
+F ext/fts5/fts5_storage.c f9e31b0d155e9b2c92d5d3a09ad7a56b937fbf1c7f962e10f4ca6281349f3934
 F ext/fts5/fts5_tcl.c cf0fd0dbe64ec272491b749e0d594f563cda03336aeb60900129e6d18b0aefb8
 F ext/fts5/fts5_test_mi.c 08c11ec968148d4cb4119d96d819f8c1f329812c568bac3684f5464be177d3ee
 F ext/fts5/fts5_test_tok.c 3cb0a9b508b30d17ef025ccddd26ae3dc8ddffbe76c057616e59a9aa85d36f3b
@@ -108,7 +109,7 @@ F ext/fts5/fts5_varint.c e64d2113f6e1bfee0032972cffc1207b77af63319746951bf1d0988
 F ext/fts5/fts5_vocab.c 209e0c151e108d5f3621fa24b91e9b02f3750ee6c3f9ccec312df39481b68a09
 F ext/fts5/fts5parse.y eb526940f892ade5693f22ffd6c4f2702543a9059942772526eac1fde256bb05
 F ext/fts5/mkportersteps.tcl 5acf962d2e0074f701620bb5308155fa1e4a63ba
-F ext/fts5/test/fts5_common.tcl 8b1848ac2baad10e444e4183034a52050b52d20b3796d9d30e78f01ab0d05583
+F ext/fts5/test/fts5_common.tcl 3378732aae2a7d9a4b9b5c40bde678d4259ca16bd490883325aecc4747bcb384
 F ext/fts5/test/fts5aa.test 4db81519863244a3cab35795fe65ab6b592e7970c7409eba098b23ebbfc08d95
 F ext/fts5/test/fts5ab.test bd932720c748383277456b81f91bc00453de2174f9762cd05f95d0495dc50390
 F ext/fts5/test/fts5ac.test a7aa7e1fefc6e1918aa4d3111d5c44a09177168e962c5fd2cca9620de8a7ed6d
@@ -123,7 +124,7 @@ F ext/fts5/test/fts5ak.test f459a64c9d38698af72a7c657ab6349bca96150241dd69fcce75
 F ext/fts5/test/fts5al.test 00c4c1c6a1366b73aa48ce2068c634520867c3cf7f5d1676ebbb775ee1f35734
 F ext/fts5/test/fts5alter.test 5565f7e4605512b69171ac18ca84398603f9f6456dbe377beeca97e83cc242cd
 F ext/fts5/test/fts5auto.test 78989e6527ce69c9eddbef7392fea5c10b0010cd2b2ae68eec7bc869c471e691
-F ext/fts5/test/fts5aux.test 3f194345fcd581f49f7fbb2e5495400efcc7d2835b77816328d8283c942f41b8
+F ext/fts5/test/fts5aux.test ed3596469f85a6cff5f6060e0cd9e3f9602051d8db2b497f5d12c85d39f20a62
 F ext/fts5/test/fts5auxdata.test eacc97ff04892f1a5f3d4df5a73f8bcbc3955ea1d12c9f24137eb1fc079e7611
 F ext/fts5/test/fts5bigid.test 2860854c2561a57594192b00c33a29f91cb85e25f3d6c03b5c2b8f62708f39dd
 F ext/fts5/test/fts5bigpl.test 6466c89b38439f0aba26ac09e232a6b963f29b1cbe1304f6a664fe1e7a8f5fd3
@@ -135,7 +136,7 @@ F ext/fts5/test/fts5columnsize.test 45459ce4dd9fd853b6044cdc9674921bff89e3d840f3
 F ext/fts5/test/fts5config.test 60094712debc59286c59aef0e6cf511c37d866802776a825ce437d26afe0817f
 F ext/fts5/test/fts5conflict.test bf6030a77dbb1bedfcc42e589ed7980846c995765d77460551e448b56d741244
 F ext/fts5/test/fts5connect.test 08030168fc96fc278fa81f28654fb7e90566f33aff269c073e19b3ae9126b2f4
-F ext/fts5/test/fts5content.test 219a4e49386b9b197b9b7cadca97ea10ddff858ecd8b763a1cb8bb07575afc2a
+F ext/fts5/test/fts5content.test 282b373c58c8e798568ec2ced18b23f29bffa8d61317a0e51a035000ad6cd731
 F ext/fts5/test/fts5contentless.test 1cd1237894eeff11feb1ff8180044eac0b17dde22c181f7a722f2dcbfdb3377c
 F ext/fts5/test/fts5contentless2.test 14c83bdacf8230f5f7ca74ecf2926b87d8a7cb788a69ce9937020428ac4fe192
 F ext/fts5/test/fts5contentless3.test 353d871c5ea08992aed3e2ebda0b1bdc35116cd24fe330fe7cf05be1e2b49fd7
@@ -145,7 +146,7 @@ F ext/fts5/test/fts5corrupt.test b6d4034b682bb3387bc44c510c71b3c67d4349e4df13949
 F ext/fts5/test/fts5corrupt2.test 99e7e23a58b4d89eb7167c6de1669cbc595cd3c79ab333e0eb56405473319e77
 F ext/fts5/test/fts5corrupt3.test 7da9895dafa404efd20728f66ff4b94399788bdc042c36fe2689801bba2ccd78
 F ext/fts5/test/fts5corrupt4.test f4c08e2182a48d8b70975fd869ee5391855c06d8a0ff87b6a2529e7c5a88a1d3
-F ext/fts5/test/fts5corrupt5.test f9dbed6785c38d891c0b947fd6e973e9c4eb44991e1322f8d7e5281a019276f2
+F ext/fts5/test/fts5corrupt5.test 0a33d1028837aaf37e55a0538060a8a0cc2e47fee112d1e09b52d50bde03c37d
 F ext/fts5/test/fts5corrupt6.test bf8eeae07825b088b9665d9d8e4accbd8dc9bf3cb85b6c64cf6c9e18ccc420a4
 F ext/fts5/test/fts5corrupt7.test 80ad7f683a8bda2404731bb77e8c3dbbb620c1f6cc583cca8239f6accd6338c0
 F ext/fts5/test/fts5delete.test 619295b20dbc1d840b403ee07c878f52378849c3c02e44f2ee143b3e978a0aa7
@@ -175,7 +176,7 @@ F ext/fts5/test/fts5first.test 3fcf2365c00a15fc9704233674789a3b95131d12de18a9b99
 F ext/fts5/test/fts5full.test e1701a112354e0ff9a1fdffb0c940c576530c33732ee20ac5e8361777070d717
 F ext/fts5/test/fts5fuzz1.test 238d8c45f3b81342aa384de3e581ff2fa330bf922a7b69e484bbc06051a1080e
 F ext/fts5/test/fts5hash.test dc7bc7e0cdeb42cfce31294ad2f8fcf43192bfd0145bb7f3ecc5465d8c72696f
-F ext/fts5/test/fts5integrity.test 0d249d351163e17e2227aa9850e68193f88a7813d16cc7d51287e554bf915b3d
+F ext/fts5/test/fts5integrity.test f1723fe9fb9381b26c946ab4d7505041434df2c449d1cd53f45c7bf8c098dfa2
 F ext/fts5/test/fts5interrupt.test 09613247b273a99889808ef852898177e671406fe71fdde7ea00e78ea283d227
 F ext/fts5/test/fts5lastrowid.test be98fe3e03235296585b72daad7aed5717ba0062bae5e5c18dd6e04e194c6b28
 F ext/fts5/test/fts5leftjoin.test c0b4cafb9661379e576dc4405c0891d8fcc2782680740513c4d1fc114b43d4ad
@@ -183,7 +184,7 @@ F ext/fts5/test/fts5limits.test 8ab67cf5d311c124b6ceb0062d0297767176df4572d955fc
 F ext/fts5/test/fts5matchinfo.test 10c9a6f7fe61fb132299c4183c012770b10c4d5c2f2edb6df0b6607f683d737a
 F ext/fts5/test/fts5merge.test e92a8db28b45931e7a9c7b1bbd36101692759d00274df74d83fd29d25d53b3a6
 F ext/fts5/test/fts5merge2.test 3ebad1a59d6ad3fb66eff6523a09e95dc6367cbefb3cd73196801dea0425c8e2
-F ext/fts5/test/fts5misc.test dd97c86c9cbc3e587067e640f6ce88842cfbf5d23bb0e0fbb7f6707623b2d505
+F ext/fts5/test/fts5misc.test 89dc46e37951b7f6653809f4abf6b1ca2f1fa62259efaf719339288f76fb6be9
 F ext/fts5/test/fts5multi.test a15bc91cdb717492e6e1b66fec1c356cb57386b980c7ba5af1915f97fe878581
 F ext/fts5/test/fts5multiclient.test 5ff811c028d6108045ffef737f1e9f05028af2458e456c0937c1d1b8dea56d45
 F ext/fts5/test/fts5near.test 211477940142d733ac04fad97cb24095513ab2507073a99c2765c3ddd2ef58bd
@@ -194,7 +195,7 @@ F ext/fts5/test/fts5optimize3.test bf9c91bb927d0fb2b9a06318a217a0419183ac5913842
 F ext/fts5/test/fts5origintext.test d2796fa08ee7aecfabdc0c45bb8a2fb16a00ea8757e63fbc153b718dbe430a39
 F ext/fts5/test/fts5origintext2.test f3b9436de540828d01f0672df855b09ebc0863e126d5b56234701d71dfa73634
 F ext/fts5/test/fts5origintext3.test 0d25933506600452a5ab3873cbb418ed5f2de2446c3672b9997b1ea104b0e7f0
-F ext/fts5/test/fts5origintext4.test 296b1b1e6630d492b99db0769e8127087548f0e939376047716a68b77ca3c871
+F ext/fts5/test/fts5origintext4.test 0c4e4514b68d9ddb15e5a538d9d234da85747a3fd62432265dbdba5c8708e457
 F ext/fts5/test/fts5origintext5.test a037bdf7235a22033c4663837bdb12d9738245464a3ac2f60c71fc40d07ede7d
 F ext/fts5/test/fts5phrase.test 13e5d8e9083077b3d9c74315b3c92ec723cc6eb37c8155e0bfe1bba00559f07b
 F ext/fts5/test/fts5plan.test b65cfcca9ddd6fdaa118c61e17aeec8e8433bc5b6bb307abd116514f79c49c5a
@@ -210,7 +211,7 @@ F ext/fts5/test/fts5rowid.test b8790ec170a8dc1942a15aef3db926a5f3061b1ff17101300
 F ext/fts5/test/fts5savepoint.test 050796b24929325cdbbb2fbfe2794816ae95d298e940ae15032200c2f4a73725
 F ext/fts5/test/fts5secure.test a02f771742fb2b1b9bdcb4bf523bcf2d0aa1ff597831d40fe3e72aaa6d0ec40f
 F ext/fts5/test/fts5secure2.test 2e961d7eef939f294c56b5d895cac7f1c3a60b934ee2cfd5e5e620bdf1ba6bbc
-F ext/fts5/test/fts5secure3.test c7e1080a6912f2a3ac68f2e05b88b72a99de38543509b2bbf427cac5c9c1c610
+F ext/fts5/test/fts5secure3.test 6d066828d225b0dbe5db818d4d6165df7bb70210e68a577e858e8762400d5a23
 F ext/fts5/test/fts5secure4.test 0d10a80590c07891478700af7793b232962042677432b9846cf7fc8337b67c97
 F ext/fts5/test/fts5secure5.test c07a68ced5951567ac116c22f2d2aafae497e47fe9fcb6a335c22f9c7a4f2c3a
 F ext/fts5/test/fts5secure6.test 74bf04733cc523bccca519bb03d3b4e2ed6f6e3db7c59bf6be82c88a0ac857fd
@@ -221,7 +222,7 @@ F ext/fts5/test/fts5simple.test a298670508c1458b88ce6030440f26a30673931884eb5f40
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 F ext/fts5/test/fts5tokenizer.test ac3c9112b263a639fb0508ae73a3ee886bf4866d2153771a8e8a20c721305a43
@@ -250,7 +251,7 @@ F ext/icu/sqliteicu.h fa373836ed5a1ee7478bdf8a1650689294e41d0c89c1daab26e9ae78a3
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@@ -261,7 +262,7 @@ F ext/jni/src/org/sqlite/jni/capi/AggregateFunction.java 0b72cdff61533b564d65b63
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@@ -297,7 +298,7 @@ F ext/jni/src/org/sqlite/jni/fts5/Fts5Context.java 338637e6e5a2cc385d962b220f3c1
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-F src/whereInt.h 4b38c5889514e3aead3f27d0ee9a26e47c3f150efc59e2a8b4e3bc8835e4d7a1
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 F src/window.c 5b1387d59df30d481ed14cceef5f4d1dab1f8752aa106ba72c8b62777bd139d2
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@@ -1169,6 +1171,7 @@ F test/fts3fault2.test 7b2741e5095367238380b0fcdb837f36c24484c7a5f353659b387df63
 F test/fts3fault3.test 4a39a1618546776255dc1de306213b600aef87eca589ca8428a70c00fd11961b
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 F test/fts3join.test 1a4d786539b2b79a41c28ef2ac22cacd92a8ee830249b68a7dee4a020848e3bb
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 F test/fts3matchinfo.test aa66cc50615578b30f6df9984819ae5b702511cf8a94251ec7c594096a703a4a
@@ -1195,7 +1198,7 @@ F test/fts4docid.test e33c383cfbdff0284685604d256f347a18fdbf01
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 F test/fts4incr.test 4e353a0bd886ea984e56fce9e77724fc923b8d0d
-F test/fts4intck1.test 43774c641fdf6607c6ee90c3db8af065a37434d55d6eaf13bafe515e8b0c5729
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 F test/fts4langid.test 4be912f42454998e239a2e877600263e0394afbaba03e06cedcc5a08693a345a
 F test/fts4lastrowid.test 185835895948d5325c7710649824042373b2203149abe8024a9319d25234dfd7
 F test/fts4merge.test 57d093660a5093ae6e9fbd2d17592a88b45bbd66db2703c4b640b28828dbe38b
@@ -1213,10 +1216,10 @@ F test/fts4umlaut.test fcaca4471de7e78c9d1f7e8976e3e8704d7d8ad979d57a739d00f3f75
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@@ -1328,18 +1331,20 @@ F test/journal3.test 7c3cf23ffc77db06601c1fcfc9743de8441cb77db9d1aa931863d94f5ff
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-F test/json/json-speed-check.sh b060a9a6c696c0a807d8929400fa11bd7113edc58b0d66b9795f424f8d0db326 x
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 F test/kvtest.c 6e0228409ea7ca0497dad503fbd109badb5e59545d131014b6aaac68b56f484a
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 F test/like3.test a76e5938fadbe6d32807284c796bafd869974a961057bc5fc5a28e06de98745c
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 F test/limit2.test 9409b033284642a859fafc95f29a5a6a557bd57c1f0d7c3f554bd64ed69df77e
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 F test/loadext.test faa4f6eed07a5aac35d57fdd7bc07f8fc82464cfd327567c10cf0ba3c86cde04
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 F test/lock.test be4fe08118fb988fed741f429b7dd5d65e1c90db
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 F test/memjournal2.test dbc2c5cb5f7b38950f4f6dc3e73fcecf0fcbed3fc32c7ce913bba164d288da1e
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-F test/mmap1.test 5c1f768828094b0dd94e55ae7f10489a1ded74772682be2c4c78679d0acaf7ef
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 F test/mmap2.test 9d6dd9ddb4ad2379f29cc78f38ce1e63ed418022
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 F test/mmapfault.test d4c9eff9cd8c2dc14bc43e71e042f175b0a26fe3
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 F test/multiplex.test d74c034e52805f6de8cc5432cef8c9eb774bb64ec29b83a22effc8ca4dac1f08
@@ -1492,7 +1499,7 @@ F test/quickcheck.test a4b7e878cd97e46108291c409b0bf8214f29e18fddd68a42bc5c1375a
 F test/quota-glob.test 32901e9eed6705d68ca3faee2a06b73b57cb3c26
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 F test/randexpr1.tcl 40dec52119ed3a2b8b2a773bce24b63a3a746459
 F test/randexpr1.test eda062a97e60f9c38ae8d806b03b0ddf23d796df
 F test/rbu.test 168573d353cd0fd10196b87b0caa322c144ef736
@@ -1580,11 +1587,12 @@ F test/sharedlock.test 5ede3c37439067c43b0198f580fd374ebf15d304
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 F test/shell5.test c8b6c54f26ec537f8558273d7ed293ca3725ef42e6b12b8f151718628bd1473b
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 F test/shell8.test 3fd093d481aaa94dc77fb73f1044c1f19c7efe3477a395cc4f7450133bc54915
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 F test/shmlock.test 3dbf017d34ab0c60abe6a44e447d3552154bd0c87b41eaf5ceacd408dd13fda5
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 F test/show_speedtest1_rtree.tcl 32e6c5f073d7426148a6936a0408f4b5b169aba5
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 F test/temptable2.test 76821347810ecc88203e6ef0dd6897b6036ac788e9dd3e6b04fd4d1631311a16
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 F test/temptrigger.test 38f0ca479b1822d3117069e014daabcaacefffcc
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-F test/testrunner_data.tcl e4d5017290a6d5c11785e36cc94c67d8bb950c8cdc2dbe4c1db2a3a583812560
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 F test/thread001.test a0985c117eab62c0c65526e9fa5d1360dd1cac5b03bde223902763274ce21899
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 F test/thread003.test ee4c9efc3b86a6a2767516a37bd64251272560a7
@@ -1709,7 +1717,7 @@ F test/tkt-7a31705a7e6.test 9e9c057b6a9497c8f7ba7b16871029414ccf6550e7345d9085d6
 F test/tkt-7bbfb7d442.test e87b59e620700b5a52ecd92f05d56686c1cad9e1aa17456eada55e0bb821b698
 F test/tkt-80ba201079.test 105a721e6aad0ae3c5946d7615d1e4d03f6145b8
 F test/tkt-80e031a00f.test 7c93af53f43527f50020983a4bcc39b077e77c7362d7af8e04a5fd155fe5e829
-F test/tkt-8454a207b9.test aff2e76143cfa443ddce6f7d85968a2e9b57a3deb0b881b730120740555f9e2f
+F test/tkt-8454a207b9.test ead80b7a01438ca1436cee029694a96c821346cf1e24f06de12f8172e139ddbb
 F test/tkt-868145d012.test a5f941107ece6a64410ca4755c6329b7eb57a356
 F test/tkt-8c63ff0ec.test 258b7fc8d7e4e1cb5362c7d65c143528b9c4cbed
 F test/tkt-91e2e8ba6f.test 08c4f94ae07696b05c9b822da0b4e5337a2f54c5
@@ -1860,9 +1868,9 @@ F test/tt3_stress.c f9a769ca8b026ecc76ee93ca8c9700a5619f8e51c581107c4053ba6ac97f
 F test/tt3_vacuum.c 71b254cde1fc49d6c8c44efd54f4668f3e57d7b3a8f4601ade069f75a999ba39
 F test/types.test bf816ce73c7dfcfe26b700c19f97ef4050d194ff
 F test/types2.test 1aeb81976841a91eef292723649b5c4fe3bc3cac
-F test/types3.test 99e009491a54f4dc02c06bdbc0c5eea56ae3e25a
+F test/types3.test c9db8f9e80309edfa4252585cf16bcab7ed31f39eeb904d21e831199a3613fb0
 F test/unhex.test b7f1b806207cb77fa31c3e434fe92fba524464e3e9356809bfcc28f15af1a8b7
-F test/unionall.test eb9afa030897af75fd2f0dd28354ef63c8a5897b6c76aa1f15acae61a12eabcf
+F test/unionall.test 5b1c4186a661e4bf762875caf4c61d8fda3dd04a6fa9005187f6ba8900c2913f
 F test/unionall2.test 71e8fa08d5699d50dc9f9dc0c9799c2e7a6bb7931a330d369307a4df7f157fa1
 F test/unionallfault.test 652bfbb630e6c43135965dc1e8f0a9a791da83aec885d626a632fe1909c56f73
 F test/unionvtab.test e1704ab1b4c1bb3ffc9da4681f8e85a0b909fd80b937984fc94b27415ac8e5a4
@@ -1967,7 +1975,7 @@ F test/walthread.test 14b20fcfa6ae152f5d8e12f5dc8a8a724b7ef189f5d8ef1e2ceab79f2a
 F test/walvfs.test e1a6ad0f3c78e98b55c3d5f0889cf366cc0d0a1cb2bccb44ac9ec67384adc4a1
 F test/where.test 59abb854eee24f166b5f7ba9d17eb250abc59ce0a66c48912ffb10763648196d
 F test/where2.test 03c21a11e7b90e2845fc3c8b4002fc44cc2797fa74c86ee47d70bd7ea4f29ed6
-F test/where3.test 5b4ffc0ac2ea0fe92f02b1244b7531522fe4d7bccf6fa8741d54e82c10e67753
+F test/where3.test 4ccb156ae33de86414a52775a6f590a9d60ba2cbc7a93a24fa331b7bcf5b6030
 F test/where4.test 4a371bfcc607f41d233701bdec33ac2972908ba8
 F test/where5.test fdf66f96d29a064b63eb543e28da4dfdccd81ad2
 F test/where6.test 5da5a98cec820d488e82708301b96cb8c18a258b
@@ -2064,8 +2072,8 @@ F tool/genfkey.test b6afd7b825d797a1e1274f519ab5695373552ecad5cd373530c63533638a
 F tool/getlock.c f4c39b651370156cae979501a7b156bdba50e7ce
 F tool/index_usage.c f62a0c701b2c7ff2f3e21d206f093c123f222dbf07136a10ffd1ca15a5c706c5
 F tool/kvtest-speed.sh 4761a9c4b3530907562314d7757995787f7aef8f
-F tool/lemon.c 19e368bc8e97ff4071115119a7911ca3b0c56eba7926d8ada8b4a86fcc69a176
-F tool/lempar.c 57478ea48420da05faa873c6d1616321caa5464644588c97fbe8e0ea04450748
+F tool/lemon.c db6c77d899f565ab42217d924e5daee5b267724433c7747fb6d3329b3c919fa1
+F tool/lempar.c c85839df516cf3cee74829df59e968646275d327763c64c9e776bac92671f0ac
 F tool/libvers.c caafc3b689638a1d88d44bc5f526c2278760d9b9
 F tool/loadfts.c c3c64e4d5e90e8ba41159232c2189dba4be7b862
 F tool/logest.c c34e5944318415de513d29a6098df247a9618c96d83c38d4abd88641fe46e669
@@ -2114,8 +2122,8 @@ F tool/speedtest8.c 2902c46588c40b55661e471d7a86e4dd71a18224
 F tool/speedtest8inst1.c 7ce07da76b5e745783e703a834417d725b7d45fd
 F tool/spellsift.tcl 52b4b04dc4333c7ab024f09d9d66ed6b6f7c6eb00b38497a09f338fa55d40618 x
 F tool/split-sqlite3c.tcl 5aa60643afca558bc732b1444ae81a522326f91e1dc5665b369c54f09e20de60
-F tool/sqldiff.c fcccbc07da942b4534d0c769e9fcc21c67cbd7086ddc1c8f13372c40a83d4634
-F tool/sqlite3_analyzer.c.in f88615bf33098945e0a42f17733f472083d150b58bdaaa5555a7129d0a51621c
+F tool/sqldiff.c 985452ffc8554baee0f945d078859d393a22abc0bbf553a9f12acae1b6e1fdd0
+F tool/sqlite3_analyzer.c.in 8da2b08f56eeac331a715036cf707cc20f879f231362be0c22efd682e2b89b4f
 F tool/sqltclsh.c.in 1bcc2e9da58fadf17b0bf6a50e68c1159e602ce057210b655d50bad5aaaef898
 F tool/sqltclsh.tcl 862f4cf1418df5e1315b5db3b5ebe88969e2a784525af5fbf9596592f14ed848
 F tool/src-verify.c 41c586dee84d0b190ad13e0282ed83d4a65ec9fefde9adf4943efdf6558eea7f
@@ -2153,11 +2161,8 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P ac9314c0e335694b48c613145f5397247bb88c51806cd0dc3ed4ec306db4bbad
-R 58bb3c6218fca3f2f88129174cf3abf4
-T *branch * agg-orderby-subtype
-T *sym-agg-orderby-subtype *
-T -sym-trunk *
+P 33f17ec24880937892d47a5a321c43785ca18e03dde28a9a0d50ae86edb29679
+R 20cc75bdc335ec49c6e2f7e4614d84da
 U drh
-Z a9d93266587a253c256405246043cc2e
+Z 297b67eb6c1efaf54d4488f8dcd81ddc
 # Remove this line to create a well-formed Fossil manifest.
@@ -1 +1 @@
-3536f4030eab6d650b7ed729d2f71eb6cc3b5fbe16b4e96b99008d66522aaccb
+f7290db63cc2568090c14dffc4ea4eadfacb5b94b50a1852ef6eefd9e2e32533
@@ -264,9 +264,9 @@ static void openStatTable(
 typedef struct StatAccum StatAccum;
 typedef struct StatSample StatSample;
 struct StatSample {
-  tRowcnt *anEq;                  /* sqlite_stat4.nEq */
  tRowcnt *anDLt;                 /* sqlite_stat4.nDLt */
 #ifdef SQLITE_ENABLE_STAT4
+  tRowcnt *anEq;                  /* sqlite_stat4.nEq */
  tRowcnt *anLt;                  /* sqlite_stat4.nLt */
  union {
    i64 iRowid;                     /* Rowid in main table of the key */
@@ -424,9 +424,9 @@ static void statInit(

  /* Allocate the space required for the StatAccum object */
  n = sizeof(*p) 
-    + sizeof(tRowcnt)*nColUp                  /* StatAccum.anEq */
-    + sizeof(tRowcnt)*nColUp;                 /* StatAccum.anDLt */
+    + sizeof(tRowcnt)*nColUp;                    /* StatAccum.anDLt */
 #ifdef SQLITE_ENABLE_STAT4
+  n += sizeof(tRowcnt)*nColUp;                   /* StatAccum.anEq */
  if( mxSample ){
    n += sizeof(tRowcnt)*nColUp                  /* StatAccum.anLt */
      + sizeof(StatSample)*(nCol+mxSample)       /* StatAccum.aBest[], a[] */
@@ -447,9 +447,9 @@ static void statInit(
  p->nKeyCol = nKeyCol;
  p->nSkipAhead = 0;
  p->current.anDLt = (tRowcnt*)&p[1];
-  p->current.anEq = &p->current.anDLt[nColUp];

 #ifdef SQLITE_ENABLE_STAT4
+  p->current.anEq = &p->current.anDLt[nColUp];
  p->mxSample = p->nLimit==0 ? mxSample : 0;
  if( mxSample ){
    u8 *pSpace;                     /* Allocated space not yet assigned */
@@ -716,7 +716,9 @@ static void statPush(

  if( p->nRow==0 ){
    /* This is the first call to this function. Do initialization. */
+#ifdef SQLITE_ENABLE_STAT4
    for(i=0; i<p->nCol; i++) p->current.anEq[i] = 1;
+#endif
  }else{
    /* Second and subsequent calls get processed here */
 #ifdef SQLITE_ENABLE_STAT4
@@ -725,15 +727,17 @@ static void statPush(

    /* Update anDLt[], anLt[] and anEq[] to reflect the values that apply
    ** to the current row of the index. */
+#ifdef SQLITE_ENABLE_STAT4
    for(i=0; i<iChng; i++){
      p->current.anEq[i]++;
    }
+#endif
    for(i=iChng; i<p->nCol; i++){
      p->current.anDLt[i]++;
 #ifdef SQLITE_ENABLE_STAT4
      if( p->mxSample ) p->current.anLt[i] += p->current.anEq[i];
-#endif
      p->current.anEq[i] = 1;
+#endif
    }
  }

@@ -867,7 +871,9 @@ static void statGet(
      u64 iVal = (p->nRow + nDistinct - 1) / nDistinct;
      if( iVal==2 && p->nRow*10 <= nDistinct*11 ) iVal = 1;
      sqlite3_str_appendf(&sStat, " %llu", iVal);
+#ifdef SQLITE_ENABLE_STAT4
      assert( p->current.anEq[i] );
+#endif
    }
    sqlite3ResultStrAccum(context, &sStat);
  }
@@ -1556,6 +1562,16 @@ static void decodeIntArray(
      while( z[0]!=0 && z[0]!=' ' ) z++;
      while( z[0]==' ' ) z++;
    }
+
+    /* Set the bLowQual flag if the peak number of rows obtained
+    ** from a full equality match is so large that a full table scan
+    ** seems likely to be faster than using the index.
+    */
+    if( aLog[0] > 66              /* Index has more than 100 rows */
+     && aLog[0] <= aLog[nOut-1]   /* And only a single value seen */
+    ){
+      pIndex->bLowQual = 1;
+    }
  }
 }

@@ -5161,7 +5161,6 @@ static int accessPayload(
          assert( aWrite>=pBufStart );                         /* due to (6) */
          memcpy(aSave, aWrite, 4);
          rc = sqlite3OsRead(fd, aWrite, a+4, (i64)pBt->pageSize*(nextPage-1));
-          if( rc && nextPage>pBt->nPage ) rc = SQLITE_CORRUPT_BKPT;
          nextPage = get4byte(aWrite);
          memcpy(aWrite, aSave, 4);
        }else
@@ -189,7 +189,7 @@ void sqlite3FinishCoding(Parse *pParse){
    }
    sqlite3VdbeAddOp0(v, OP_Halt);

-#if SQLITE_USER_AUTHENTICATION
+#if SQLITE_USER_AUTHENTICATION && !defined(SQLITE_OMIT_SHARED_CACHE)
    if( pParse->nTableLock>0 && db->init.busy==0 ){
      sqlite3UserAuthInit(db);
      if( db->auth.authLevel<UAUTH_User ){
@@ -1655,7 +1655,8 @@ char sqlite3AffinityType(const char *zIn, Column *pCol){

  assert( zIn!=0 );
  while( zIn[0] ){
-    h = (h<<8) + sqlite3UpperToLower[(*zIn)&0xff];
+    u8 x = *(u8*)zIn;
+    h = (h<<8) + sqlite3UpperToLower[x];
    zIn++;
    if( h==(('c'<<24)+('h'<<16)+('a'<<8)+'r') ){             /* CHAR */
      aff = SQLITE_AFF_TEXT;
@@ -5520,7 +5521,7 @@ void sqlite3Reindex(Parse *pParse, Token *pName1, Token *pName2){
  if( iDb<0 ) return;
  z = sqlite3NameFromToken(db, pObjName);
  if( z==0 ) return;
-  zDb = db->aDb[iDb].zDbSName;
+  zDb = pName2->n ? db->aDb[iDb].zDbSName : 0;
  pTab = sqlite3FindTable(db, z, zDb);
  if( pTab ){
    reindexTable(pParse, pTab, 0);
@@ -5530,6 +5531,7 @@ void sqlite3Reindex(Parse *pParse, Token *pName1, Token *pName2){
  pIndex = sqlite3FindIndex(db, z, zDb);
  sqlite3DbFree(db, z);
  if( pIndex ){
+    iDb = sqlite3SchemaToIndex(db, pIndex->pTable->pSchema);
    sqlite3BeginWriteOperation(pParse, 0, iDb);
    sqlite3RefillIndex(pParse, pIndex, -1);
    return;
@@ -1236,22 +1236,83 @@ static void dateFunc(
  }
 }

+/*
+** Compute the number of days after the most recent January 1.
+**
+** In other words, compute the zero-based day number for the
+** current year:
+**
+**   Jan01 = 0,  Jan02 = 1, ..., Jan31 = 30, Feb01 = 31, ...
+**   Dec31 = 364 or 365.
+*/
+static int daysAfterJan01(DateTime *pDate){
+  DateTime jan01 = *pDate;
+  assert( jan01.validYMD );
+  assert( jan01.validHMS );
+  assert( pDate->validJD );
+  jan01.validJD = 0;
+  jan01.M = 1;
+  jan01.D = 1;
+  computeJD(&jan01);
+  return (int)((pDate->iJD-jan01.iJD+43200000)/86400000);
+}
+
+/*
+** Return the number of days after the most recent Monday.
+**
+** In other words, return the day of the week according
+** to this code:
+**
+**   0=Monday, 1=Tuesday, 2=Wednesday, ..., 6=Sunday.
+*/
+static int daysAfterMonday(DateTime *pDate){
+  assert( pDate->validJD );
+  return (int)((pDate->iJD+43200000)/86400000) % 7;
+}
+
+/*
+** Return the number of days after the most recent Sunday.
+**
+** In other words, return the day of the week according
+** to this code:
+**
+**   0=Sunday, 1=Monday, 2=Tues, ..., 6=Saturday
+*/
+static int daysAfterSunday(DateTime *pDate){
+  assert( pDate->validJD );
+  return (int)((pDate->iJD+129600000)/86400000) % 7;
+}
+
 /*
 **    strftime( FORMAT, TIMESTRING, MOD, MOD, ...)
 **
 ** Return a string described by FORMAT.  Conversions as follows:
 **
-**   %d  day of month
+**   %d  day of month  01-31
+**   %e  day of month  1-31
 **   %f  ** fractional seconds  SS.SSS
+**   %F  ISO date.  YYYY-MM-DD
+**   %G  ISO year corresponding to %V 0000-9999.
+**   %g  2-digit ISO year corresponding to %V 00-99
 **   %H  hour 00-24
-**   %j  day of year 000-366
+**   %k  hour  0-24  (leading zero converted to space)
+**   %I  hour 01-12
+**   %j  day of year 001-366
 **   %J  ** julian day number
+**   %l  hour  1-12  (leading zero converted to space)
 **   %m  month 01-12
 **   %M  minute 00-59
+**   %p  "am" or "pm"
+**   %P  "AM" or "PM"
+**   %R  time as HH:MM
 **   %s  seconds since 1970-01-01
 **   %S  seconds 00-59
-**   %w  day of week 0-6  Sunday==0
-**   %W  week of year 00-53
+**   %T  time as HH:MM:SS
+**   %u  day of week 1-7  Monday==1, Sunday==7
+**   %w  day of week 0-6  Sunday==0, Monday==1
+**   %U  week of year 00-53  (First Sunday is start of week 01)
+**   %V  week of year 01-53  (First week containing Thursday is week 01)
+**   %W  week of year 00-53  (First Monday is start of week 01)
 **   %Y  year 0000-9999
 **   %%  %
 */
@@ -1288,7 +1349,7 @@ static void strftimeFunc(
        sqlite3_str_appendf(&sRes, cf=='d' ? "%02d" : "%2d", x.D);
        break;
      }
-      case 'f': {
+      case 'f': {  /* Fractional seconds.  (Non-standard) */
        double s = x.s;
        if( s>59.999 ) s = 59.999;
        sqlite3_str_appendf(&sRes, "%06.3f", s);
@@ -1298,6 +1359,21 @@ static void strftimeFunc(
        sqlite3_str_appendf(&sRes, "%04d-%02d-%02d", x.Y, x.M, x.D);
        break;
      }
+      case 'G': /* Fall thru */
+      case 'g': {
+        DateTime y = x;
+        assert( y.validJD );
+        /* Move y so that it is the Thursday in the same week as x */
+        y.iJD += (3 - daysAfterMonday(&x))*86400000;
+        y.validYMD = 0;
+        computeYMD(&y);
+        if( cf=='g' ){
+          sqlite3_str_appendf(&sRes, "%02d", y.Y%100);
+        }else{
+          sqlite3_str_appendf(&sRes, "%04d", y.Y);
+        }
+        break;
+      }
      case 'H':
      case 'k': {
        sqlite3_str_appendf(&sRes, cf=='H' ? "%02d" : "%2d", x.h);
@@ -1311,25 +1387,11 @@ static void strftimeFunc(
        sqlite3_str_appendf(&sRes, cf=='I' ? "%02d" : "%2d", h);
        break;
      }
-      case 'W': /* Fall thru */
-      case 'j': {
-        int nDay;             /* Number of days since 1st day of year */
-        DateTime y = x;
-        y.validJD = 0;
-        y.M = 1;
-        y.D = 1;
-        computeJD(&y);
-        nDay = (int)((x.iJD-y.iJD+43200000)/86400000);
-        if( cf=='W' ){
-          int wd;   /* 0=Monday, 1=Tuesday, ... 6=Sunday */
-          wd = (int)(((x.iJD+43200000)/86400000)%7);
-          sqlite3_str_appendf(&sRes,"%02d",(nDay+7-wd)/7);
-        }else{
-          sqlite3_str_appendf(&sRes,"%03d",nDay+1);
-        }
+      case 'j': {  /* Day of year.  Jan01==1, Jan02==2, and so forth */
+        sqlite3_str_appendf(&sRes,"%03d",daysAfterJan01(&x)+1);
        break;
      }
-      case 'J': {
+      case 'J': {  /* Julian day number.  (Non-standard) */
        sqlite3_str_appendf(&sRes,"%.16g",x.iJD/86400000.0);
        break;
      }
@@ -1372,13 +1434,33 @@ static void strftimeFunc(
        sqlite3_str_appendf(&sRes,"%02d:%02d:%02d", x.h, x.m, (int)x.s);
        break;
      }
-      case 'u': /* Fall thru */
-      case 'w': {
-        char c = (char)(((x.iJD+129600000)/86400000) % 7) + '0';
+      case 'u':    /* Day of week.  1 to 7.  Monday==1, Sunday==7 */
+      case 'w': {  /* Day of week.  0 to 6.  Sunday==0, Monday==1 */
+        char c = (char)daysAfterSunday(&x) + '0';
        if( c=='0' && cf=='u' ) c = '7';
        sqlite3_str_appendchar(&sRes, 1, c);
        break;
      }
+      case 'U': {  /* Week num. 00-53. First Sun of the year is week 01 */
+        sqlite3_str_appendf(&sRes,"%02d",
+              (daysAfterJan01(&x)-daysAfterSunday(&x)+7)/7);
+        break;
+      }
+      case 'V': {  /* Week num. 01-53. First week with a Thur is week 01 */
+        DateTime y = x;
+        /* Adjust y so that is the Thursday in the same week as x */
+        assert( y.validJD );
+        y.iJD += (3 - daysAfterMonday(&x))*86400000;
+        y.validYMD = 0;
+        computeYMD(&y);
+        sqlite3_str_appendf(&sRes,"%02d", daysAfterJan01(&y)/7+1);
+        break;
+      }
+      case 'W': {  /* Week num. 00-53. First Mon of the year is week 01 */
+        sqlite3_str_appendf(&sRes,"%02d",
+           (daysAfterJan01(&x)-daysAfterMonday(&x)+7)/7);
+        break;
+      }
      case 'Y': {
        sqlite3_str_appendf(&sRes,"%04d",x.Y);
        break;
@@ -2740,9 +2740,10 @@ int sqlite3ExprCanBeNull(const Expr *p){
    case TK_COLUMN:
      assert( ExprUseYTab(p) );
      return ExprHasProperty(p, EP_CanBeNull) ||
-             p->y.pTab==0 ||  /* Reference to column of index on expression */
+             NEVER(p->y.pTab==0) ||  /* Reference to column of index on expr */
             (p->iColumn>=0
              && p->y.pTab->aCol!=0 /* Possible due to prior error */
+              && ALWAYS(p->iColumn<p->y.pTab->nCol)
              && p->y.pTab->aCol[p->iColumn].notNull==0);
    default:
      return 1;
@@ -5324,8 +5325,10 @@ void sqlite3ExprCode(Parse *pParse, Expr *pExpr, int target){
  inReg = sqlite3ExprCodeTarget(pParse, pExpr, target);
  if( inReg!=target ){
    u8 op;
-    if( ALWAYS(pExpr)
-     && (ExprHasProperty(pExpr,EP_Subquery) || pExpr->op==TK_REGISTER)
+    Expr *pX = sqlite3ExprSkipCollateAndLikely(pExpr);
+    testcase( pX!=pExpr );
+    if( ALWAYS(pX)
+     && (ExprHasProperty(pX,EP_Subquery) || pX->op==TK_REGISTER)
    ){
      op = OP_Copy;
    }else{
@@ -1409,7 +1409,7 @@ static void replaceFunc(
  }
  if( zPattern[0]==0 ){
    assert( sqlite3_value_type(argv[1])!=SQLITE_NULL );
-    sqlite3_result_value(context, argv[0]);
+    sqlite3_result_text(context, (const char*)zStr, nStr, SQLITE_TRANSIENT);
    return;
  }
  nPattern = sqlite3_value_bytes(argv[1]);
@@ -20,9 +20,9 @@
 ** All generated JSON text still conforms strictly to RFC-8259, but text
 ** with JSON-5 extensions is accepted as input.
 **
-** Beginning with version 3.45.0 (pending), these routines also accept
-** BLOB values that have JSON encoded using a binary representation we
-** call JSONB.  The name JSONB comes from PostgreSQL, however the on-disk
+** Beginning with version 3.45.0 (circa 2024-01-01), these routines also
+** accept BLOB values that have JSON encoded using a binary representation
+** called "JSONB".  The name JSONB comes from PostgreSQL, however the on-disk
 ** format SQLite JSONB is completely different and incompatible with
 ** PostgreSQL JSONB.
 **
@@ -113,6 +113,9 @@
 ** checks are true, the BLOB is assumed to be JSONB and processing continues.
 ** Errors are only raised if some other miscoding is discovered during
 ** processing.
+**
+** Additional information can be found in the doc/jsonb.md file of the
+** canonical SQLite source tree.
 */
 #ifndef SQLITE_OMIT_JSON
 #include "sqliteInt.h"
@@ -211,6 +214,12 @@ typedef struct JsonParse JsonParse;
 #define JSON_CACHE_ID    (-429938)  /* Cache entry */
 #define JSON_CACHE_SIZE  4          /* Max number of cache entries */

+/*
+** jsonUnescapeOneChar() returns this invalid code point if it encounters
+** a syntax error.
+*/
+#define JSON_INVALID_CHAR 0x99999
+
 /* A cache mapping JSON text into JSONB blobs.
 **
 ** Each cache entry is a JsonParse object with the following restrictions:
@@ -220,6 +229,8 @@ typedef struct JsonParse JsonParse;
 **    *   The aBlob[] array must be owned by the JsonParse object.  In other
 **        words, nBlobAlloc must be non-zero.
 **
+**    *   eEdit and delta must be zero.
+**
 **    *   zJson must be an RCStr.  In other words bJsonIsRCStr must be true.
 */
 struct JsonCache {
@@ -279,23 +290,24 @@ struct JsonString {
 **       json_replace() or json_patch() or similar).
 **
 **   4.  New JSON text is generated from the aBlob[] for output.  This step
-**       is skipped the function is one of the jsonb_* functions that returns
-**       JSONB instead of text JSON.
+**       is skipped if the function is one of the jsonb_* functions that
+**       returns JSONB instead of text JSON.
 */
 struct JsonParse {
  u8 *aBlob;         /* JSONB representation of JSON value */
  u32 nBlob;         /* Bytes of aBlob[] actually used */
  u32 nBlobAlloc;    /* Bytes allocated to aBlob[].  0 if aBlob is external */
  char *zJson;       /* Json text used for parsing */
+  sqlite3 *db;       /* The database connection to which this object belongs */
  int nJson;         /* Length of the zJson string in bytes */
+  u32 nJPRef;        /* Number of references to this object */
+  u32 iErr;          /* Error location in zJson[] */
  u16 iDepth;        /* Nesting depth */
  u8 nErr;           /* Number of errors seen */
  u8 oom;            /* Set to true if out of memory */
  u8 bJsonIsRCStr;   /* True if zJson is an RCStr */
  u8 hasNonstd;      /* True if input uses non-standard features like JSON5 */
  u8 bReadOnly;      /* Do not modify. */
-  u32 nJPRef;        /* Number of references to this object */
-  u32 iErr;          /* Error location in zJson[] */
  /* Search and edit information.  See jsonLookupStep() */
  u8 eEdit;          /* Edit operation to apply */
  int delta;         /* Size change due to the edit */
@@ -334,7 +346,7 @@ struct JsonParse {
 **************************************************************************/
 static void jsonReturnStringAsBlob(JsonString*);
 static int jsonFuncArgMightBeBinary(sqlite3_value *pJson);
-static u32 jsonXlateBlobToText(const JsonParse*,u32,JsonString*);
+static u32 jsonTranslateBlobToText(const JsonParse*,u32,JsonString*);
 static void jsonReturnParse(sqlite3_context*,JsonParse*);
 static JsonParse *jsonParseFuncArg(sqlite3_context*,sqlite3_value*,u32);
 static void jsonParseFree(JsonParse*);
@@ -374,6 +386,7 @@ static int jsonCacheInsert(

  assert( pParse->zJson!=0 );
  assert( pParse->bJsonIsRCStr );
+  assert( pParse->delta==0 );
  p = sqlite3_get_auxdata(ctx, JSON_CACHE_ID);
  if( p==0 ){
    sqlite3 *db = sqlite3_context_db_handle(ctx);
@@ -446,6 +459,7 @@ static JsonParse *jsonCacheSearch(
      p->a[p->nUsed-1] = tmp;
      i = p->nUsed - 1;
    }
+    assert( p->a[i]->delta==0 );
    return p->a[i];
  }else{
    return 0;
@@ -575,6 +589,16 @@ static void jsonAppendChar(JsonString *p, char c){
  }
 }

+/* Remove a single character from the end of the string
+*/
+static void jsonStringTrimOneChar(JsonString *p){
+  if( p->eErr==0 ){
+    assert( p->nUsed>0 );
+    p->nUsed--;
+  }
+}
+
+
 /* Make sure there is a zero terminator on p->zBuf[]
 **
 ** Return true on success.  Return false if an OOM prevents this
@@ -582,7 +606,7 @@ static void jsonAppendChar(JsonString *p, char c){
 */
 static int jsonStringTerminate(JsonString *p){
  jsonAppendChar(p, 0);
-  p->nUsed--;
+  jsonStringTrimOneChar(p);
  return p->eErr==0;
 }

@@ -614,8 +638,33 @@ static void jsonAppendString(JsonString *p, const char *zIn, u32 N){
  p->zBuf[p->nUsed++] = '"';
  while( 1 /*exit-by-break*/ ){
    k = 0;
-    while( k+1<N && jsonIsOk[z[k]] && jsonIsOk[z[k+1]] ){ k += 2; } /* <--, */
-    while( k<N && jsonIsOk[z[k]] ){ k++; }    /* <-- loop unwound for speed  */
+    /* The following while() is the 4-way unwound equivalent of
+    **
+    **     while( k<N && jsonIsOk[z[k]] ){ k++; }
+    */
+    while( 1 /* Exit by break */ ){
+      if( k+3>=N ){
+        while( k<N && jsonIsOk[z[k]] ){ k++; }
+        break;
+      }
+      if( !jsonIsOk[z[k]] ){
+        break;
+      }
+      if( !jsonIsOk[z[k+1]] ){
+        k += 1;
+        break;
+      }
+      if( !jsonIsOk[z[k+2]] ){
+        k += 2;
+        break;
+      }
+      if( !jsonIsOk[z[k+3]] ){
+        k += 3;
+        break;
+      }else{
+        k += 4;
+      }
+    }
    if( k>=N ){
      if( k>0 ){
        memcpy(&p->zBuf[p->nUsed], z, k);
@@ -707,7 +756,7 @@ static void jsonAppendSqlValue(
        memset(&px, 0, sizeof(px));
        px.aBlob = (u8*)sqlite3_value_blob(pValue);
        px.nBlob = sqlite3_value_bytes(pValue);
-        jsonXlateBlobToText(&px, 0, p);
+        jsonTranslateBlobToText(&px, 0, p);
      }else if( p->eErr==0 ){
        sqlite3_result_error(p->pCtx, "JSON cannot hold BLOB values", -1);
        p->eErr = JSTRING_ERR;
@@ -785,7 +834,7 @@ static void jsonParseReset(JsonParse *pParse){
    pParse->bJsonIsRCStr = 0;
  }
  if( pParse->nBlobAlloc ){
-    sqlite3_free(pParse->aBlob);
+    sqlite3DbFree(pParse->db, pParse->aBlob);
    pParse->aBlob = 0;
    pParse->nBlob = 0;
    pParse->nBlobAlloc = 0;
@@ -802,7 +851,7 @@ static void jsonParseFree(JsonParse *pParse){
      pParse->nJPRef--;
    }else{
      jsonParseReset(pParse);
-      sqlite3_free(pParse);
+      sqlite3DbFree(pParse->db, pParse);
    }
  }
 }
@@ -1033,7 +1082,7 @@ static int jsonBlobExpand(JsonParse *pParse, u32 N){
    t = pParse->nBlobAlloc*2;
  }
  if( t<N ) t = N+100;
-  aNew = sqlite3_realloc64( pParse->aBlob, t );
+  aNew = sqlite3DbRealloc(pParse->db, pParse->aBlob, t);
  if( aNew==0 ){ pParse->oom = 1; return 1; }
  pParse->aBlob = aNew;
  pParse->nBlobAlloc = t;
@@ -1224,15 +1273,11 @@ static int jsonBlobChangePayloadSize(
 */
 static int jsonIs4HexB(const char *z, int *pOp){
  if( z[0]!='u' ) return 0;
-  if( !sqlite3Isxdigit(z[1]) ) return 0;
-  if( !sqlite3Isxdigit(z[2]) ) return 0;
-  if( !sqlite3Isxdigit(z[3]) ) return 0;
-  if( !sqlite3Isxdigit(z[4]) ) return 0;
+  if( !jsonIs4Hex(&z[1]) ) return 0;
  *pOp = JSONB_TEXTJ;
  return 1;
 }

-
 /*
 ** Check a single element of the JSONB in pParse for validity.
 **
@@ -1377,7 +1422,7 @@ static u32 jsonbValidityCheck(
          }else{
            u32 c = 0;
            u32 szC = jsonUnescapeOneChar((const char*)&z[j], k-j, &c);
-            if( c==0xfffd ) return j+1;
+            if( c==JSON_INVALID_CHAR ) return j+1;
            j += szC - 1;
          }
        }
@@ -1449,7 +1494,7 @@ static u32 jsonbValidityCheck(
 **     -4    ',' seen    /     the index in zJson[] of the seen character
 **     -5    ':' seen   /
 */
-static int jsonXlateTextToBlob(JsonParse *pParse, u32 i){
+static int jsonTranslateTextToBlob(JsonParse *pParse, u32 i){
  char c;
  u32 j;
  u32 iThis, iStart;
@@ -1469,7 +1514,7 @@ json_parse_restart:
    iStart = pParse->nBlob;
    for(j=i+1;;j++){
      u32 iBlob = pParse->nBlob;
-      x = jsonXlateTextToBlob(pParse, j);
+      x = jsonTranslateTextToBlob(pParse, j);
      if( x<=0 ){
        int op;
        if( x==(-2) ){
@@ -1515,7 +1560,7 @@ json_parse_restart:
            goto parse_object_value;
          }
        }
-        x = jsonXlateTextToBlob(pParse, j);
+        x = jsonTranslateTextToBlob(pParse, j);
        if( x!=(-5) ){
          if( x!=(-1) ) pParse->iErr = j;
          return -1;
@@ -1523,7 +1568,7 @@ json_parse_restart:
        j = pParse->iErr+1;
      }
    parse_object_value:
-      x = jsonXlateTextToBlob(pParse, j);
+      x = jsonTranslateTextToBlob(pParse, j);
      if( x<=0 ){
        if( x!=(-1) ) pParse->iErr = j;
        return -1;
@@ -1535,14 +1580,14 @@ json_parse_restart:
        break;
      }else{
        if( jsonIsspace(z[j]) ){
-          j += 1 + strspn(&z[j+1], jsonSpaces);
+          j += 1 + (u32)strspn(&z[j+1], jsonSpaces);
          if( z[j]==',' ){
            continue;
          }else if( z[j]=='}' ){
            break;
          }
        }
-        x = jsonXlateTextToBlob(pParse, j);
+        x = jsonTranslateTextToBlob(pParse, j);
        if( x==(-4) ){
          j = pParse->iErr;
          continue;
@@ -1570,7 +1615,7 @@ json_parse_restart:
      return -1;
    }
    for(j=i+1;;j++){
-      x = jsonXlateTextToBlob(pParse, j);
+      x = jsonTranslateTextToBlob(pParse, j);
      if( x<=0 ){
        if( x==(-3) ){
          j = pParse->iErr;
@@ -1587,14 +1632,14 @@ json_parse_restart:
        break;
      }else{
        if( jsonIsspace(z[j]) ){
-          j += 1 + strspn(&z[j+1], jsonSpaces);
+          j += 1 + (u32)strspn(&z[j+1], jsonSpaces);
          if( z[j]==',' ){
            continue;
          }else if( z[j]==']' ){
            break;
          }
        }
-        x = jsonXlateTextToBlob(pParse, j);
+        x = jsonTranslateTextToBlob(pParse, j);
        if( x==(-4) ){
          j = pParse->iErr;
          continue;
@@ -1850,7 +1895,7 @@ json_parse_restart:
  case 0x0a:
  case 0x0d:
  case 0x20: {
-    i += 1 + strspn(&z[i+1], jsonSpaces);
+    i += 1 + (u32)strspn(&z[i+1], jsonSpaces);
    goto json_parse_restart;
  }
  case 0x0b:
@@ -1876,6 +1921,7 @@ json_parse_restart:
      return i+4;
    }
    /* fall-through into the default case that checks for NaN */
+    /* no break */ deliberate_fall_through
  }
  default: {
    u32 k;
@@ -1917,7 +1963,7 @@ static int jsonConvertTextToBlob(
 ){
  int i;
  const char *zJson = pParse->zJson;
-  i = jsonXlateTextToBlob(pParse, 0);
+  i = jsonTranslateTextToBlob(pParse, 0);
  if( pParse->oom ) i = -1;
  if( i>0 ){
 #ifdef SQLITE_DEBUG
@@ -1962,14 +2008,15 @@ static void jsonReturnStringAsBlob(JsonString *pStr){
  jsonStringTerminate(pStr);
  px.zJson = pStr->zBuf;
  px.nJson = pStr->nUsed;
-  (void)jsonXlateTextToBlob(&px, 0);
+  px.db = sqlite3_context_db_handle(pStr->pCtx);
+  (void)jsonTranslateTextToBlob(&px, 0);
  if( px.oom ){
-    sqlite3_free(px.aBlob);
+    sqlite3DbFree(px.db, px.aBlob);
    sqlite3_result_error_nomem(pStr->pCtx);
  }else{
    assert( px.nBlobAlloc>0 );
    assert( !px.bReadOnly );
-    sqlite3_result_blob(pStr->pCtx, px.aBlob, px.nBlob, sqlite3_free);
+    sqlite3_result_blob(pStr->pCtx, px.aBlob, px.nBlob, SQLITE_DYNAMIC);
  }
 }

@@ -2050,7 +2097,7 @@ static u32 jsonbPayloadSize(const JsonParse *pParse, u32 i, u32 *pSz){
 **
 ** The pOut->eErr JSTRING_OOM flag is set on a OOM.
 */
-static u32 jsonXlateBlobToText(
+static u32 jsonTranslateBlobToText(
  const JsonParse *pParse,       /* the complete parse of the JSON */
  u32 i,                         /* Start rendering at this index */
  JsonString *pOut               /* Write JSON here */
@@ -2221,10 +2268,10 @@ static u32 jsonXlateBlobToText(
      j = i+n;
      iEnd = j+sz;
      while( j<iEnd ){
-        j = jsonXlateBlobToText(pParse, j, pOut);
+        j = jsonTranslateBlobToText(pParse, j, pOut);
        jsonAppendChar(pOut, ',');
      }
-      if( sz>0 ) pOut->nUsed--;
+      if( sz>0 ) jsonStringTrimOneChar(pOut);
      jsonAppendChar(pOut, ']');
      break;
    }
@@ -2234,11 +2281,11 @@ static u32 jsonXlateBlobToText(
      j = i+n;
      iEnd = j+sz;
      while( j<iEnd ){
-        j = jsonXlateBlobToText(pParse, j, pOut);
+        j = jsonTranslateBlobToText(pParse, j, pOut);
        jsonAppendChar(pOut, (x++ & 1) ? ',' : ':');
      }
      if( x & 1 ) pOut->eErr |= JSTRING_MALFORMED;
-      if( sz>0 ) pOut->nUsed--;
+      if( sz>0 ) jsonStringTrimOneChar(pOut);
      jsonAppendChar(pOut, '}');
      break;
    }
@@ -2387,19 +2434,23 @@ static u32 jsonBytesToBypass(const char *z, u32 n){
 ** Input z[0..n] defines JSON escape sequence including the leading '\\'.
 ** Decode that escape sequence into a single character.  Write that
 ** character into *piOut.  Return the number of bytes in the escape sequence.
+**
+** If there is a syntax error of some kind (for example too few characters
+** after the '\\' to complete the encoding) then *piOut is set to
+** JSON_INVALID_CHAR.
 */
 static u32 jsonUnescapeOneChar(const char *z, u32 n, u32 *piOut){
  assert( n>0 );
  assert( z[0]=='\\' );
  if( n<2 ){
-    *piOut = 0xFFFD;
+    *piOut = JSON_INVALID_CHAR;
    return n;
  }
  switch( (u8)z[1] ){
    case 'u': {
      u32 v, vlo;
      if( n<6 ){
-        *piOut = 0xFFFD;
+        *piOut = JSON_INVALID_CHAR;
        return n;
      }
      v = jsonHexToInt4(&z[2]);
@@ -2429,7 +2480,7 @@ static u32 jsonUnescapeOneChar(const char *z, u32 n, u32 *piOut){
    case '\\':{   *piOut = z[1];  return 2; }
    case 'x': {
      if( n<4 ){
-        *piOut = 0xFFFD;
+        *piOut = JSON_INVALID_CHAR;
        return n;
      }
      *piOut = (jsonHexToInt(z[2])<<4) | jsonHexToInt(z[3]);
@@ -2440,7 +2491,7 @@ static u32 jsonUnescapeOneChar(const char *z, u32 n, u32 *piOut){
    case '\n': {
      u32 nSkip = jsonBytesToBypass(z, n);
      if( nSkip==0 ){
-        *piOut = 0xFFFD;
+        *piOut = JSON_INVALID_CHAR;
        return n;
      }else if( nSkip==n ){
        *piOut = 0;
@@ -2453,7 +2504,7 @@ static u32 jsonUnescapeOneChar(const char *z, u32 n, u32 *piOut){
      }
    }
    default: {
-      *piOut = 0xFFFD;
+      *piOut = JSON_INVALID_CHAR;
      return 2;
    }
  }
@@ -2581,6 +2632,7 @@ static u32 jsonCreateEditSubstructure(
  static const u8 emptyObject[] = { JSONB_ARRAY, JSONB_OBJECT };
  int rc;
  memset(pIns, 0, sizeof(*pIns));
+  pIns->db = pParse->db;
  if( zTail[0]==0 ){
    /* No substructure.  Just insert what is given in pParse. */
    pIns->aBlob = pParse->aIns;
@@ -2708,6 +2760,7 @@ static u32 jsonLookupStep(
      testcase( pParse->eEdit==JEDIT_INS );
      testcase( pParse->eEdit==JEDIT_SET );
      memset(&ix, 0, sizeof(ix));
+      ix.db = pParse->db;
      jsonBlobAppendNode(&ix, rawKey?JSONB_TEXTRAW:JSONB_TEXT5, nKey, 0);
      pParse->oom |= ix.oom;
      rc = jsonCreateEditSubstructure(pParse, &v, &zPath[i]);
@@ -2816,7 +2869,7 @@ static void jsonReturnTextJsonFromBlob(
  x.aBlob = (u8*)aBlob;
  x.nBlob = nBlob;
  jsonStringInit(&s, ctx);
-  jsonXlateBlobToText(&x, 0, &s);
+  jsonTranslateBlobToText(&x, 0, &s);
  jsonReturnString(&s, 0, 0);
 }

@@ -2918,7 +2971,7 @@ static void jsonReturnFromBlob(
      char *zOut;
      u32 nOut = sz;
      z = (const char*)&pParse->aBlob[i+n];
-      zOut = sqlite3_malloc( nOut+1 );
+      zOut = sqlite3DbMallocRaw(db, nOut+1);
      if( zOut==0 ) goto returnfromblob_oom;
      for(iIn=iOut=0; iIn<sz; iIn++){
        char c = z[iIn];
@@ -2927,8 +2980,6 @@ static void jsonReturnFromBlob(
          u32 szEscape = jsonUnescapeOneChar(&z[iIn], sz-iIn, &v);
          if( v<=0x7f ){
            zOut[iOut++] = (char)v;
-          }else if( v==0xfffd ){
-            /* Silently ignore illegal unicode */
          }else if( v<=0x7ff ){
            assert( szEscape>=2 );
            zOut[iOut++] = (char)(0xc0 | (v>>6));
@@ -2938,6 +2989,8 @@ static void jsonReturnFromBlob(
            zOut[iOut++] = 0xe0 | (v>>12);
            zOut[iOut++] = 0x80 | ((v>>6)&0x3f);
            zOut[iOut++] = 0x80 | (v&0x3f);
+          }else if( v==JSON_INVALID_CHAR ){
+            /* Silently ignore illegal unicode */
          }else{
            assert( szEscape>=4 );
            zOut[iOut++] = 0xf0 | (v>>18);
@@ -2952,7 +3005,7 @@ static void jsonReturnFromBlob(
      } /* end for() */
      assert( iOut<=nOut );
      zOut[iOut] = 0;
-      sqlite3_result_text(pCtx, zOut, iOut, sqlite3_free);
+      sqlite3_result_text(pCtx, zOut, iOut, SQLITE_DYNAMIC);
      break;
    }
    case JSONB_ARRAY:
@@ -3005,6 +3058,7 @@ static int jsonFunctionArgToBlob(
  int eType = sqlite3_value_type(pArg);
  static u8 aNull[] = { 0x00 };
  memset(pParse, 0, sizeof(pParse[0]));
+  pParse->db = sqlite3_context_db_handle(ctx);
  switch( eType ){
    default: {
      pParse->aBlob = aNull;
@@ -3030,7 +3084,7 @@ static int jsonFunctionArgToBlob(
        pParse->nJson = nJson;
        if( jsonConvertTextToBlob(pParse, ctx) ){
          sqlite3_result_error(ctx, "malformed JSON", -1);
-          sqlite3_free(pParse->aBlob);
+          sqlite3DbFree(pParse->db, pParse->aBlob);
          memset(pParse, 0, sizeof(pParse[0]));
          return 1;
        }
@@ -3039,13 +3093,29 @@ static int jsonFunctionArgToBlob(
      }
      break;
    }
-    case SQLITE_FLOAT:
+    case SQLITE_FLOAT: {
+      double r = sqlite3_value_double(pArg);
+      if( NEVER(sqlite3IsNaN(r)) ){
+        jsonBlobAppendNode(pParse, JSONB_NULL, 0, 0);
+      }else{
+        int n = sqlite3_value_bytes(pArg);
+        const char *z = (const char*)sqlite3_value_text(pArg);
+        if( z==0 ) return 1;
+        if( z[0]=='I' ){
+          jsonBlobAppendNode(pParse, JSONB_FLOAT, 5, "9e999");
+        }else if( z[0]=='-' && z[1]=='I' ){
+          jsonBlobAppendNode(pParse, JSONB_FLOAT, 6, "-9e999");
+        }else{
+          jsonBlobAppendNode(pParse, JSONB_FLOAT, n, z);
+        }
+      }
+      break;
+    }
    case SQLITE_INTEGER: {
      int n = sqlite3_value_bytes(pArg);
      const char *z = (const char*)sqlite3_value_text(pArg);
-      int e = eType==SQLITE_INTEGER ? JSONB_INT : JSONB_FLOAT;
      if( z==0 ) return 1;
-      jsonBlobAppendNode(pParse, e, n, z);
+      jsonBlobAppendNode(pParse, JSONB_INT, n, z);
      break;
    }
  }
@@ -3148,9 +3218,36 @@ jsonInsertIntoBlob_patherror:
 }

 /*
-** Make a copy of a JsonParse object.  The copy will be editable.
+** If pArg is a blob that seems like a JSONB blob, then initialize
+** p to point to that JSONB and return TRUE.  If pArg does not seem like
+** a JSONB blob, then return FALSE;
+**
+** This routine is only called if it is already known that pArg is a
+** blob.  The only open question is whether or not the blob appears
+** to be a JSONB blob.
 */
-
+static int jsonArgIsJsonb(sqlite3_value *pArg, JsonParse *p){
+  u32 n, sz = 0;
+  p->aBlob = (u8*)sqlite3_value_blob(pArg);
+  p->nBlob = (u32)sqlite3_value_bytes(pArg);
+  if( p->nBlob==0 ){
+    p->aBlob = 0;
+    return 0;
+  }
+  if( NEVER(p->aBlob==0) ){
+    return 0;
+  }
+  if( (p->aBlob[0] & 0x0f)<=JSONB_OBJECT
+   && (n = jsonbPayloadSize(p, 0, &sz))>0
+   && sz+n==p->nBlob
+   && ((p->aBlob[0] & 0x0f)>JSONB_FALSE || sz==0)
+  ){
+    return 1;
+  }
+  p->aBlob = 0;
+  p->nBlob = 0;
+  return 0;
+}

 /*
 ** Generate a JsonParse object, containing valid JSONB in aBlob and nBlob,
@@ -3176,6 +3273,7 @@ static JsonParse *jsonParseFuncArg(
  int eType;                   /* Datatype of pArg */
  JsonParse *p = 0;            /* Value to be returned */
  JsonParse *pFromCache = 0;   /* Value taken from cache */
+  sqlite3 *db;                 /* The database connection */
  
  assert( ctx!=0 );
  eType = sqlite3_value_type(pArg);
@@ -3189,14 +3287,16 @@ static JsonParse *jsonParseFuncArg(
      return pFromCache;
    }
  }
+  db = sqlite3_context_db_handle(ctx);
 rebuild_from_cache:
-  p = sqlite3_malloc64( sizeof(*p) );
+  p = sqlite3DbMallocZero(db, sizeof(*p));
  if( p==0 ) goto json_pfa_oom;
  memset(p, 0, sizeof(*p));
+  p->db = db;
  p->nJPRef = 1;
  if( pFromCache!=0 ){
    u32 nBlob = pFromCache->nBlob;
-    p->aBlob = sqlite3_malloc64( nBlob );
+    p->aBlob = sqlite3DbMallocRaw(db, nBlob);
    if( p->aBlob==0 ) goto json_pfa_oom;
    memcpy(p->aBlob, pFromCache->aBlob, nBlob);
    p->nBlobAlloc = p->nBlob = nBlob;
@@ -3205,29 +3305,24 @@ rebuild_from_cache:
    return p;
  }
  if( eType==SQLITE_BLOB ){
-    u32 n, sz = 0;
-    p->aBlob = (u8*)sqlite3_value_blob(pArg);
-    p->nBlob = (u32)sqlite3_value_bytes(pArg);
-    if( p->nBlob==0 ){
-      goto json_pfa_malformed;
+    if( jsonArgIsJsonb(pArg,p) ){
+      if( (flgs & JSON_EDITABLE)!=0 && jsonBlobMakeEditable(p, 0)==0 ){
+        goto json_pfa_oom;
+      }
+      return p;
    }
-    if( NEVER(p->aBlob==0) ){
-      goto json_pfa_oom;
-    }
-    if( (p->aBlob[0] & 0x0f)>JSONB_OBJECT ){
-      goto json_pfa_malformed;
-    }
-    n = jsonbPayloadSize(p, 0, &sz);
-    if( n==0 
-     || sz+n!=p->nBlob
-     || ((p->aBlob[0] & 0x0f)<=JSONB_FALSE && sz>0)
-    ){
-      goto json_pfa_malformed;
-    }
-    if( (flgs & JSON_EDITABLE)!=0 && jsonBlobMakeEditable(p, 0)==0 ){
-      goto json_pfa_oom;
-    }
-    return p;
+    /* If the blob is not valid JSONB, fall through into trying to cast
+    ** the blob into text which is then interpreted as JSON.  (tag-20240123-a)
+    **
+    ** This goes against all historical documentation about how the SQLite
+    ** JSON functions were suppose to work.  From the beginning, blob was
+    ** reserved for expansion and a blob value should have raised an error.
+    ** But it did not, due to a bug.  And many applications came to depend
+    ** upon this buggy behavior, espeically when using the CLI and reading
+    ** JSON text using readfile(), which returns a blob.  For this reason
+    ** we will continue to support the bug moving forward.
+    ** See for example https://sqlite.org/forum/forumpost/012136abd5292b8d
+    */
  }
  p->zJson = (char*)sqlite3_value_text(pArg);
  p->nJson = sqlite3_value_bytes(pArg);
@@ -3306,7 +3401,8 @@ static void jsonReturnParse(
  }else{
    JsonString s;
    jsonStringInit(&s, ctx);
-    jsonXlateBlobToText(p, 0, &s);
+    p->delta = 0;
+    jsonTranslateBlobToText(p, 0, &s);
    jsonReturnString(&s, p, ctx);
    sqlite3_result_subtype(ctx, JSON_SUBTYPE);
  }
@@ -3326,14 +3422,15 @@ static void jsonDebugPrintBlob(
  JsonParse *pParse, /* JSON content */
  u32 iStart,        /* Start rendering here */
  u32 iEnd,          /* Do not render this byte or any byte after this one */
-  int nIndent        /* Indent by this many spaces */
+  int nIndent,       /* Indent by this many spaces */
+  sqlite3_str *pOut  /* Generate output into this sqlite3_str object */
 ){
  while( iStart<iEnd ){
    u32 i, n, nn, sz = 0;
    int showContent = 1;
    u8 x = pParse->aBlob[iStart] & 0x0f;
    u32 savedNBlob = pParse->nBlob;
-    printf("%5d:%*s", iStart, nIndent, "");
+    sqlite3_str_appendf(pOut, "%5d:%*s", iStart, nIndent, "");
    if( pParse->nBlobAlloc>pParse->nBlob ){
      pParse->nBlob = pParse->nBlobAlloc;
    }
@@ -3342,9 +3439,11 @@ static void jsonDebugPrintBlob(
    if( sz>0 && x<JSONB_ARRAY ){
      nn += sz;
    }
-    for(i=0; i<nn; i++) printf(" %02x", pParse->aBlob[iStart+i]);
+    for(i=0; i<nn; i++){
+      sqlite3_str_appendf(pOut, " %02x", pParse->aBlob[iStart+i]);
+    }
    if( n==0 ){
-      printf("   ERROR invalid node size\n");
+      sqlite3_str_appendf(pOut, "   ERROR invalid node size\n");
      iStart = n==0 ? iStart+1 : iEnd;
      continue;
    }
@@ -3359,55 +3458,57 @@ static void jsonDebugPrintBlob(
        }
      }
    }
-    printf("  <-- ");
+    sqlite3_str_appendall(pOut,"  <-- ");
    switch( x ){
-      case JSONB_NULL:     printf("null"); break;
-      case JSONB_TRUE:     printf("true"); break;
-      case JSONB_FALSE:    printf("false"); break;
-      case JSONB_INT:      printf("int"); break;
-      case JSONB_INT5:     printf("int5"); break;
-      case JSONB_FLOAT:    printf("float"); break;
-      case JSONB_FLOAT5:   printf("float5"); break;
-      case JSONB_TEXT:     printf("text"); break;
-      case JSONB_TEXTJ:    printf("textj"); break;
-      case JSONB_TEXT5:    printf("text5"); break;
-      case JSONB_TEXTRAW:  printf("textraw"); break;
+      case JSONB_NULL:     sqlite3_str_appendall(pOut,"null"); break;
+      case JSONB_TRUE:     sqlite3_str_appendall(pOut,"true"); break;
+      case JSONB_FALSE:    sqlite3_str_appendall(pOut,"false"); break;
+      case JSONB_INT:      sqlite3_str_appendall(pOut,"int"); break;
+      case JSONB_INT5:     sqlite3_str_appendall(pOut,"int5"); break;
+      case JSONB_FLOAT:    sqlite3_str_appendall(pOut,"float"); break;
+      case JSONB_FLOAT5:   sqlite3_str_appendall(pOut,"float5"); break;
+      case JSONB_TEXT:     sqlite3_str_appendall(pOut,"text"); break;
+      case JSONB_TEXTJ:    sqlite3_str_appendall(pOut,"textj"); break;
+      case JSONB_TEXT5:    sqlite3_str_appendall(pOut,"text5"); break;
+      case JSONB_TEXTRAW:  sqlite3_str_appendall(pOut,"textraw"); break;
      case JSONB_ARRAY: {
-        printf("array, %u bytes\n", sz);
-        jsonDebugPrintBlob(pParse, iStart+n, iStart+n+sz, nIndent+2);
+        sqlite3_str_appendf(pOut,"array, %u bytes\n", sz);
+        jsonDebugPrintBlob(pParse, iStart+n, iStart+n+sz, nIndent+2, pOut);
        showContent = 0;
        break;
      }
      case JSONB_OBJECT: {
-        printf("object, %u bytes\n", sz);
-        jsonDebugPrintBlob(pParse, iStart+n, iStart+n+sz, nIndent+2);
+        sqlite3_str_appendf(pOut, "object, %u bytes\n", sz);
+        jsonDebugPrintBlob(pParse, iStart+n, iStart+n+sz, nIndent+2, pOut);
        showContent = 0;
        break;
      }
      default: {
-        printf("ERROR: unknown node type\n");
+        sqlite3_str_appendall(pOut, "ERROR: unknown node type\n");
        showContent = 0;
        break;
      }
    }
    if( showContent ){
      if( sz==0 && x<=JSONB_FALSE ){
-        printf("\n");
+        sqlite3_str_append(pOut, "\n", 1);
      }else{
        u32 i;
-        printf(": \"");
+        sqlite3_str_appendall(pOut, ": \"");
        for(i=iStart+n; i<iStart+n+sz; i++){
          u8 c = pParse->aBlob[i];
          if( c<0x20 || c>=0x7f ) c = '.';
-          putchar(c);
+          sqlite3_str_append(pOut, (char*)&c, 1);
        }
-        printf("\"\n");
+        sqlite3_str_append(pOut, "\"\n", 2);
      }
    }
    iStart += n + sz;
  }
 }
 static void jsonShowParse(JsonParse *pParse){
+  sqlite3_str out;
+  char zBuf[1000];
  if( pParse==0 ){
    printf("NULL pointer\n");
    return;
@@ -3418,7 +3519,10 @@ static void jsonShowParse(JsonParse *pParse){
    if( pParse->nBlob==0 ) return;
    printf("content (bytes 0..%u):\n", pParse->nBlob-1);
  }
-  jsonDebugPrintBlob(pParse, 0, pParse->nBlob, 0);
+  sqlite3StrAccumInit(&out, 0, zBuf, sizeof(zBuf), 1000000);
+  jsonDebugPrintBlob(pParse, 0, pParse->nBlob, 0, &out);
+  printf("%s", sqlite3_str_value(&out));
+  sqlite3_str_reset(&out);
 }
 #endif /* SQLITE_DEBUG */

@@ -3426,8 +3530,8 @@ static void jsonShowParse(JsonParse *pParse){
 /*
 ** SQL function:   json_parse(JSON)
 **
-** Parse JSON using jsonParseFuncArg().  Then print a dump of that
-** parse on standard output.
+** Parse JSON using jsonParseFuncArg().  Return text that is a
+** human-readable dump of the binary JSONB for the input parameter.
 */
 static void jsonParseFunc(
  sqlite3_context *ctx,
@@ -3435,10 +3539,18 @@ static void jsonParseFunc(
  sqlite3_value **argv
 ){
  JsonParse *p;        /* The parse */
+  sqlite3_str out;

-  assert( argc==1 );
+  assert( argc>=1 );
+  sqlite3StrAccumInit(&out, 0, 0, 0, 1000000);
  p = jsonParseFuncArg(ctx, argv[0], 0);
-  jsonShowParse(p);
+  if( p==0 ) return;
+  if( argc==1 ){
+    jsonDebugPrintBlob(p, 0, p->nBlob, 0, &out);
+    sqlite3_result_text64(ctx, out.zText, out.nChar, SQLITE_DYNAMIC, SQLITE_UTF8);
+  }else{
+    jsonShowParse(p);
+  }
  jsonParseFree(p);
 }
 #endif /* SQLITE_DEBUG */
@@ -3634,7 +3746,7 @@ static void jsonExtractFunc(
      if( argc==2 ){
        if( flags & JSON_JSON ){
          jsonStringInit(&jx, ctx);
-          jsonXlateBlobToText(p, j, &jx);
+          jsonTranslateBlobToText(p, j, &jx);
          jsonReturnString(&jx, 0, 0);
          jsonStringReset(&jx);
          assert( (flags & JSON_BLOB)==0 );
@@ -3649,7 +3761,7 @@ static void jsonExtractFunc(
        }
      }else{
        jsonAppendSeparator(&jx);
-        jsonXlateBlobToText(p, j, &jx);
+        jsonTranslateBlobToText(p, j, &jx);
      }
    }else if( j==JSON_LOOKUP_NOTFOUND ){
      if( argc==2 ){
@@ -4186,12 +4298,12 @@ static void jsonValidFunc(
      return;
    }
    case SQLITE_BLOB: {
-      if( (flags & 0x0c)!=0 && jsonFuncArgMightBeBinary(argv[0]) ){
+      if( jsonFuncArgMightBeBinary(argv[0]) ){
        if( flags & 0x04 ){
          /* Superficial checking only - accomplished by the
          ** jsonFuncArgMightBeBinary() call above. */
          res = 1;
-        }else{
+        }else if( flags & 0x08 ){
          /* Strict checking.  Check by translating BLOB->TEXT->BLOB.  If
          ** no errors occur, call that a "strict check". */
          JsonParse px;
@@ -4202,8 +4314,11 @@ static void jsonValidFunc(
          iErr = jsonbValidityCheck(&px, 0, px.nBlob, 1);
          res = iErr==0;
        }
+        break;
      }
-      break;
+      /* Fall through into interpreting the input as text.  See note
+      ** above at tag-20240123-a. */
+      /* no break */ deliberate_fall_through
    }
    default: {
      JsonParse px;
@@ -4254,6 +4369,7 @@ static void jsonErrorFunc(
  assert( argc==1 );
  UNUSED_PARAMETER(argc);
  memset(&s, 0, sizeof(s));
+  s.db = sqlite3_context_db_handle(ctx);
  if( jsonFuncArgMightBeBinary(argv[0]) ){
    s.aBlob = (u8*)sqlite3_value_blob(argv[0]);
    s.nBlob = sqlite3_value_bytes(argv[0]);
@@ -4327,7 +4443,7 @@ static void jsonArrayCompute(sqlite3_context *ctx, int isFinal){
      if( isFinal ){
        if( !pStr->bStatic ) sqlite3RCStrUnref(pStr->zBuf);
      }else{
-        pStr->nUsed--;
+        jsonStringTrimOneChar(pStr);
      }
      return;
    }else if( isFinal ){
@@ -4337,7 +4453,7 @@ static void jsonArrayCompute(sqlite3_context *ctx, int isFinal){
      pStr->bStatic = 1;
    }else{
      sqlite3_result_text(ctx, pStr->zBuf, (int)pStr->nUsed, SQLITE_TRANSIENT);
-      pStr->nUsed--;
+      jsonStringTrimOneChar(pStr);
    }
  }else{
    sqlite3_result_text(ctx, "[]", 2, SQLITE_STATIC);
@@ -4447,7 +4563,7 @@ static void jsonObjectCompute(sqlite3_context *ctx, int isFinal){
      if( isFinal ){
        if( !pStr->bStatic ) sqlite3RCStrUnref(pStr->zBuf);
      }else{
-        pStr->nUsed--;
+        jsonStringTrimOneChar(pStr);
      }
      return;
    }else if( isFinal ){
@@ -4457,7 +4573,7 @@ static void jsonObjectCompute(sqlite3_context *ctx, int isFinal){
      pStr->bStatic = 1;
    }else{
      sqlite3_result_text(ctx, pStr->zBuf, (int)pStr->nUsed, SQLITE_TRANSIENT);
-      pStr->nUsed--;
+      jsonStringTrimOneChar(pStr);
    }
  }else{
    sqlite3_result_text(ctx, "{}", 2, SQLITE_STATIC);
@@ -4543,9 +4659,9 @@ static int jsonEachConnect(
     "CREATE TABLE x(key,value,type,atom,id,parent,fullkey,path,"
                    "json HIDDEN,root HIDDEN)");
  if( rc==SQLITE_OK ){
-    pNew = (JsonEachConnection*)(*ppVtab = sqlite3_malloc( sizeof(*pNew) ));
+    pNew = (JsonEachConnection*)sqlite3DbMallocZero(db, sizeof(*pNew));
+    *ppVtab = (sqlite3_vtab*)pNew;
    if( pNew==0 ) return SQLITE_NOMEM;
-    memset(pNew, 0, sizeof(*pNew));
    sqlite3_vtab_config(db, SQLITE_VTAB_INNOCUOUS);
    pNew->db = db;
  }
@@ -4554,7 +4670,8 @@ static int jsonEachConnect(

 /* destructor for json_each virtual table */
 static int jsonEachDisconnect(sqlite3_vtab *pVtab){
-  sqlite3_free(pVtab);
+  JsonEachConnection *p = (JsonEachConnection*)pVtab;
+  sqlite3DbFree(p->db, pVtab);
  return SQLITE_OK;
 }

@@ -4564,9 +4681,8 @@ static int jsonEachOpenEach(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){
  JsonEachCursor *pCur;

  UNUSED_PARAMETER(p);
-  pCur = sqlite3_malloc( sizeof(*pCur) );
+  pCur = sqlite3DbMallocZero(pVtab->db, sizeof(*pCur));
  if( pCur==0 ) return SQLITE_NOMEM;
-  memset(pCur, 0, sizeof(*pCur));
  pCur->db = pVtab->db;
  jsonStringZero(&pCur->path);
  *ppCursor = &pCur->base;
@@ -4603,7 +4719,7 @@ static int jsonEachClose(sqlite3_vtab_cursor *cur){
  JsonEachCursor *p = (JsonEachCursor*)cur;
  jsonEachCursorReset(p);
  
-  sqlite3_free(cur);
+  sqlite3DbFree(p->db, cur);
  return SQLITE_OK;
 }

@@ -4937,13 +5053,10 @@ static int jsonEachFilter(
  if( idxNum==0 ) return SQLITE_OK;
  memset(&p->sParse, 0, sizeof(p->sParse));
  p->sParse.nJPRef = 1;
-  if( sqlite3_value_type(argv[0])==SQLITE_BLOB ){
-    if( jsonFuncArgMightBeBinary(argv[0]) ){
-      p->sParse.nBlob = sqlite3_value_bytes(argv[0]);
-      p->sParse.aBlob = (u8*)sqlite3_value_blob(argv[0]);
-    }else{
-      goto json_each_malformed_input;
-    }
+  p->sParse.db = p->db;
+  if( jsonFuncArgMightBeBinary(argv[0]) ){
+    p->sParse.nBlob = sqlite3_value_bytes(argv[0]);
+    p->sParse.aBlob = (u8*)sqlite3_value_blob(argv[0]);
  }else{
    p->sParse.zJson = (char*)sqlite3_value_text(argv[0]);
    p->sParse.nJson = sqlite3_value_bytes(argv[0]);
@@ -4671,7 +4671,7 @@ int sqlite3_test_control(int op, ...){
    ** to be the current setting.
    */
    case SQLITE_TESTCTRL_JSON_SELFCHECK: {
-#if defined(SQLITE_DEBUG)
+#if defined(SQLITE_DEBUG) && !defined(SQLITE_OMIT_WSD)
      int *pOnOff = va_arg(ap, int*);
      if( *pOnOff<0 ){
        *pOnOff = sqlite3Config.bJsonSelfcheck;
@@ -799,6 +799,14 @@ unsigned char *sqlite3_serialize(
    pOut = 0;
  }else{
    sz = sqlite3_column_int64(pStmt, 0)*szPage;
+    if( sz==0 ){
+      sqlite3_reset(pStmt);
+      sqlite3_exec(db, "BEGIN IMMEDIATE; COMMIT;", 0, 0, 0);
+      rc = sqlite3_step(pStmt);
+      if( rc==SQLITE_ROW ){
+        sz = sqlite3_column_int64(pStmt, 0)*szPage;
+      }
+    }
    if( piSize ) *piSize = sz;
    if( mFlags & SQLITE_SERIALIZE_NOCOPY ){
      pOut = 0;
@@ -4434,9 +4434,15 @@ static int unixShmSystemLock(

  pShmNode = pFile->pInode->pShmNode;

-  /* Assert that the correct mutex or mutexes are held. */
-  if( pShmNode->nRef==0 ){
-    assert( ofst==UNIX_SHM_DMS && n==1 && unixMutexHeld() );
+  /* Assert that the parameters are within expected range and that the
+  ** correct mutex or mutexes are held. */
+  assert( pShmNode->nRef>=0 );
+  assert( (ofst==UNIX_SHM_DMS && n==1)
+       || (ofst>=UNIX_SHM_BASE && ofst+n<=(UNIX_SHM_BASE+SQLITE_SHM_NLOCK))
+  );
+  if( ofst==UNIX_SHM_DMS ){
+    assert( pShmNode->nRef>0 || unixMutexHeld() );
+    assert( pShmNode->nRef==0 || sqlite3_mutex_held(pShmNode->pShmMutex) );
  }else{
 #ifdef SQLITE_ENABLE_SETLK_TIMEOUT
    int ii;
@@ -5089,7 +5095,7 @@ static int unixShmLock(
    for(iMutex=ofst; iMutex<ofst+n; iMutex++){
      if( flags==(SQLITE_SHM_LOCK|SQLITE_SHM_EXCLUSIVE) ){
        rc = sqlite3_mutex_try(pShmNode->aMutex[iMutex]);
-        if( rc!=SQLITE_OK ) break;
+        if( rc!=SQLITE_OK ) goto leave_shmnode_mutexes;
      }else{
        sqlite3_mutex_enter(pShmNode->aMutex[iMutex]);
      }
@@ -5098,7 +5104,7 @@ static int unixShmLock(
    sqlite3_mutex_enter(pShmNode->pShmMutex);
 #endif

-    if( rc==SQLITE_OK ){
+    if( ALWAYS(rc==SQLITE_OK) ){
      if( flags & SQLITE_SHM_UNLOCK ){
        /* Case (a) - unlock.  */
        int bUnlock = 1;
@@ -5177,6 +5183,7 @@ static int unixShmLock(

    /* Drop the mutexes acquired above. */
 #ifdef SQLITE_ENABLE_SETLK_TIMEOUT
+  leave_shmnode_mutexes:
    for(iMutex--; iMutex>=ofst; iMutex--){
      sqlite3_mutex_leave(pShmNode->aMutex[iMutex]);
    }
@@ -5434,11 +5441,16 @@ static int unixFetch(sqlite3_file *fd, i64 iOff, int nAmt, void **pp){

 #if SQLITE_MAX_MMAP_SIZE>0
  if( pFd->mmapSizeMax>0 ){
+    /* Ensure that there is always at least a 256 byte buffer of addressable
+    ** memory following the returned page. If the database is corrupt,
+    ** SQLite may overread the page slightly (in practice only a few bytes,
+    ** but 256 is safe, round, number).  */
+    const int nEofBuffer = 256;
    if( pFd->pMapRegion==0 ){
      int rc = unixMapfile(pFd, -1);
      if( rc!=SQLITE_OK ) return rc;
    }
-    if( pFd->mmapSize >= iOff+nAmt ){
+    if( pFd->mmapSize >= (iOff+nAmt+nEofBuffer) ){
      *pp = &((u8 *)pFd->pMapRegion)[iOff];
      pFd->nFetchOut++;
    }
@@ -4521,6 +4521,11 @@ static int winFetch(sqlite3_file *fd, i64 iOff, int nAmt, void **pp){

 #if SQLITE_MAX_MMAP_SIZE>0
  if( pFd->mmapSizeMax>0 ){
+    /* Ensure that there is always at least a 256 byte buffer of addressable
+    ** memory following the returned page. If the database is corrupt,
+    ** SQLite may overread the page slightly (in practice only a few bytes,
+    ** but 256 is safe, round, number).  */
+    const int nEofBuffer = 256;
    if( pFd->pMapRegion==0 ){
      int rc = winMapfile(pFd, -1);
      if( rc!=SQLITE_OK ){
@@ -4529,7 +4534,7 @@ static int winFetch(sqlite3_file *fd, i64 iOff, int nAmt, void **pp){
        return rc;
      }
    }
-    if( pFd->mmapSize >= iOff+nAmt ){
+    if( pFd->mmapSize >= (iOff+nAmt+nEofBuffer) ){
      assert( pFd->pMapRegion!=0 );
      *pp = &((u8 *)pFd->pMapRegion)[iOff];
      pFd->nFetchOut++;
@@ -688,7 +688,7 @@ struct Pager {
  char *zJournal;             /* Name of the journal file */
  int (*xBusyHandler)(void*); /* Function to call when busy */
  void *pBusyHandlerArg;      /* Context argument for xBusyHandler */
-  int aStat[4];               /* Total cache hits, misses, writes, spills */
+  u32 aStat[4];               /* Total cache hits, misses, writes, spills */
 #ifdef SQLITE_TEST
  int nRead;                  /* Database pages read */
 #endif
@@ -818,9 +818,8 @@ int sqlite3PagerDirectReadOk(Pager *pPager, Pgno pgno){
 #ifndef SQLITE_OMIT_WAL
  if( pPager->pWal ){
    u32 iRead = 0;
-    int rc;
-    rc = sqlite3WalFindFrame(pPager->pWal, pgno, &iRead);
-    return (rc==SQLITE_OK && iRead==0);
+    (void)sqlite3WalFindFrame(pPager->pWal, pgno, &iRead);
+    return iRead==0;
  }
 #endif
  return 1;
@@ -6832,11 +6831,11 @@ int *sqlite3PagerStats(Pager *pPager){
  a[3] = pPager->eState==PAGER_OPEN ? -1 : (int) pPager->dbSize;
  a[4] = pPager->eState;
  a[5] = pPager->errCode;
-  a[6] = pPager->aStat[PAGER_STAT_HIT];
-  a[7] = pPager->aStat[PAGER_STAT_MISS];
+  a[6] = (int)pPager->aStat[PAGER_STAT_HIT] & 0x7fffffff;
+  a[7] = (int)pPager->aStat[PAGER_STAT_MISS] & 0x7fffffff;
  a[8] = 0;  /* Used to be pPager->nOvfl */
  a[9] = pPager->nRead;
-  a[10] = pPager->aStat[PAGER_STAT_WRITE];
+  a[10] = (int)pPager->aStat[PAGER_STAT_WRITE] & 0x7fffffff;
  return a;
 }
 #endif
@@ -6852,7 +6851,7 @@ int *sqlite3PagerStats(Pager *pPager){
 ** reset parameter is non-zero, the cache hit or miss count is zeroed before
 ** returning.
 */
-void sqlite3PagerCacheStat(Pager *pPager, int eStat, int reset, int *pnVal){
+void sqlite3PagerCacheStat(Pager *pPager, int eStat, int reset, u64 *pnVal){

  assert( eStat==SQLITE_DBSTATUS_CACHE_HIT
       || eStat==SQLITE_DBSTATUS_CACHE_MISS
@@ -7792,7 +7791,7 @@ int sqlite3PagerWalFramesize(Pager *pPager){
 }
 #endif

-#ifdef SQLITE_USE_SEH
+#if defined(SQLITE_USE_SEH) && !defined(SQLITE_OMIT_WAL)
 int sqlite3PagerWalSystemErrno(Pager *pPager){
  return sqlite3WalSystemErrno(pPager->pWal);
 }
@@ -216,7 +216,7 @@ sqlite3_file *sqlite3PagerJrnlFile(Pager*);
 const char *sqlite3PagerJournalname(Pager*);
 void *sqlite3PagerTempSpace(Pager*);
 int sqlite3PagerIsMemdb(Pager*);
-void sqlite3PagerCacheStat(Pager *, int, int, int *);
+void sqlite3PagerCacheStat(Pager *, int, int, u64*);
 void sqlite3PagerClearCache(Pager*);
 int sqlite3SectorSize(sqlite3_file *);

@@ -21,6 +21,10 @@
 */
 }

+// Function used to enlarge the parser stack, if needed
+%realloc sqlite3_realloc64
+%free    sqlite3_free
+
 // All token codes are small integers with #defines that begin with "TK_"
 %token_prefix TK_

@@ -45,7 +49,7 @@
  }
 }
 %stack_overflow {
-  sqlite3ErrorMsg(pParse, "parser stack overflow");
+  sqlite3OomFault(pParse->db);
 }

 // The name of the generated procedure that implements the parser
@@ -277,7 +277,7 @@ static int lookupName(
  Parse *pParse,       /* The parsing context */
  const char *zDb,     /* Name of the database containing table, or NULL */
  const char *zTab,    /* Name of table containing column, or NULL */
-  const char *zCol,    /* Name of the column. */
+  const Expr *pRight,  /* Name of the column. */
  NameContext *pNC,    /* The name context used to resolve the name */
  Expr *pExpr          /* Make this EXPR node point to the selected column */
 ){
@@ -294,6 +294,7 @@ static int lookupName(
  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;

  assert( pNC );     /* the name context cannot be NULL. */
  assert( zCol );    /* The Z in X.Y.Z cannot be NULL */
@@ -753,12 +754,17 @@ static int lookupName(
      sqlite3ErrorMsg(pParse, "%s: %s.%s.%s", zErr, zDb, zTab, zCol);
    }else if( zTab ){
      sqlite3ErrorMsg(pParse, "%s: %s.%s", zErr, zTab, zCol);
+    }else if( cnt==0 && ExprHasProperty(pRight,EP_DblQuoted) ){
+      sqlite3ErrorMsg(pParse, "%s: \"%s\" - should this be a"
+                              " string literal in single-quotes?",
+                              zErr, zCol);
    }else{
      sqlite3ErrorMsg(pParse, "%s: %s", zErr, zCol);
    }
    sqlite3RecordErrorOffsetOfExpr(pParse->db, pExpr);
    pParse->checkSchema = 1;
    pTopNC->nNcErr++;
+    eNewExprOp = TK_NULL;
  }
  assert( pFJMatch==0 );

@@ -999,7 +1005,6 @@ static int resolveExprStep(Walker *pWalker, Expr *pExpr){
    */
    case TK_ID:
    case TK_DOT: {
-      const char *zColumn;
      const char *zTable;
      const char *zDb;
      Expr *pRight;
@@ -1008,7 +1013,7 @@ static int resolveExprStep(Walker *pWalker, Expr *pExpr){
        zDb = 0;
        zTable = 0;
        assert( !ExprHasProperty(pExpr, EP_IntValue) );
-        zColumn = pExpr->u.zToken;
+        pRight = pExpr;
      }else{
        Expr *pLeft = pExpr->pLeft;
        testcase( pNC->ncFlags & NC_IdxExpr );
@@ -1027,14 +1032,13 @@ static int resolveExprStep(Walker *pWalker, Expr *pExpr){
        }
        assert( ExprUseUToken(pLeft) && ExprUseUToken(pRight) );
        zTable = pLeft->u.zToken;
-        zColumn = pRight->u.zToken;
        assert( ExprUseYTab(pExpr) );
        if( IN_RENAME_OBJECT ){
          sqlite3RenameTokenRemap(pParse, (void*)pExpr, (void*)pRight);
          sqlite3RenameTokenRemap(pParse, (void*)&pExpr->y.pTab, (void*)pLeft);
        }
      }
-      return lookupName(pParse, zDb, zTable, zColumn, pNC, pExpr);
+      return lookupName(pParse, zDb, zTable, pRight, pNC, pExpr);
    }

    /* Resolve function names
@@ -7135,7 +7135,7 @@ static int countOfViewOptimization(Parse *pParse, Select *p){
    pSub->selFlags |= SF_Aggregate;
    pSub->selFlags &= ~SF_Compound;
    pSub->nSelectRow = 0;
-    sqlite3ExprListDelete(db, pSub->pEList);
+    sqlite3ParserAddCleanup(pParse, sqlite3ExprListDeleteGeneric, pSub->pEList);
    pTerm = pPrior ? sqlite3ExprDup(db, pCount, 0) : pCount;
    pSub->pEList = sqlite3ExprListAppend(pParse, 0, pTerm);
    pTerm = sqlite3PExpr(pParse, TK_SELECT, 0, 0);
@@ -736,14 +736,14 @@ static int strlenChar(const char *z){
 */
 static FILE * openChrSource(const char *zFile){
 #if defined(_WIN32) || defined(WIN32)
-  struct _stat x = {0};
+  struct __stat64 x = {0};
 # define STAT_CHR_SRC(mode) ((mode & (_S_IFCHR|_S_IFIFO|_S_IFREG))!=0)
  /* On Windows, open first, then check the stream nature. This order
  ** is necessary because _stat() and sibs, when checking a named pipe,
  ** effectively break the pipe as its supplier sees it. */
  FILE *rv = fopen(zFile, "rb");
  if( rv==0 ) return 0;
-  if( _fstat(_fileno(rv), &x) != 0
+  if( _fstat64(_fileno(rv), &x) != 0
      || !STAT_CHR_SRC(x.st_mode)){
    fclose(rv);
    rv = 0;
@@ -1292,6 +1292,7 @@ struct ShellState {
  u8 eTraceType;         /* SHELL_TRACE_* value for type of trace */
  u8 bSafeMode;          /* True to prohibit unsafe operations */
  u8 bSafeModePersist;   /* The long-term value of bSafeMode */
+  u8 eRestoreState;      /* See comments above doAutoDetectRestore() */
  ColModeOpts cmOpts;    /* Option values affecting columnar mode output */
  unsigned statsOn;      /* True to display memory stats before each finalize */
  unsigned mEqpLines;    /* Mask of vertical lines in the EQP output graph */
@@ -5319,7 +5320,6 @@ static void open_db(ShellState *p, int openFlags){
        break;
      }
    }
-    globalDb = p->db;
    if( p->db==0 || SQLITE_OK!=sqlite3_errcode(p->db) ){
      eputf("Error: unable to open database \"%s\": %s\n",
            zDbFilename, sqlite3_errmsg(p->db));
@@ -5336,6 +5336,7 @@ static void open_db(ShellState *p, int openFlags){
              zDbFilename);
      }
    }
+    globalDb = p->db;
    sqlite3_db_config(p->db, SQLITE_DBCONFIG_STMT_SCANSTATUS, (int)0, (int*)0);

    /* Reflect the use or absence of --unsafe-testing invocation. */
@@ -6731,7 +6732,6 @@ static int lintDotCommand(
  return SQLITE_ERROR;
 }

-#if !defined SQLITE_OMIT_VIRTUALTABLE
 static void shellPrepare(
  sqlite3 *db,
  int *pRc,
@@ -6750,12 +6750,8 @@ static void shellPrepare(

 /*
 ** Create a prepared statement using printf-style arguments for the SQL.
-**
-** This routine is could be marked "static".  But it is not always used,
-** depending on compile-time options.  By omitting the "static", we avoid
-** nuisance compiler warnings about "defined but not used".
 */
-void shellPreparePrintf(
+static void shellPreparePrintf(
  sqlite3 *db,
  int *pRc,
  sqlite3_stmt **ppStmt,
@@ -6778,13 +6774,10 @@ void shellPreparePrintf(
  }
 }

-/* Finalize the prepared statement created using shellPreparePrintf().
-**
-** This routine is could be marked "static".  But it is not always used,
-** depending on compile-time options.  By omitting the "static", we avoid
-** nuisance compiler warnings about "defined but not used".
+/* 
+** Finalize the prepared statement created using shellPreparePrintf().
 */
-void shellFinalize(
+static void shellFinalize(
  int *pRc,
  sqlite3_stmt *pStmt
 ){
@@ -6800,6 +6793,7 @@ void shellFinalize(
  }
 }

+#if !defined SQLITE_OMIT_VIRTUALTABLE
 /* Reset the prepared statement created using shellPreparePrintf().
 **
 ** This routine is could be marked "static".  But it is not always used,
@@ -7866,6 +7860,30 @@ FROM (\
  }
 }

+/*
+** Check if the sqlite_schema table contains one or more virtual tables. If
+** parameter zLike is not NULL, then it is an SQL expression that the
+** sqlite_schema row must also match. If one or more such rows are found,
+** print the following warning to the output:
+**
+** WARNING: Script requires that SQLITE_DBCONFIG_DEFENSIVE be disabled
+*/
+static int outputDumpWarning(ShellState *p, const char *zLike){
+  int rc = SQLITE_OK;
+  sqlite3_stmt *pStmt = 0;
+  shellPreparePrintf(p->db, &rc, &pStmt,
+    "SELECT 1 FROM sqlite_schema o WHERE "
+    "sql LIKE 'CREATE VIRTUAL TABLE%%' AND %s", zLike ? zLike : "true"
+  );
+  if( rc==SQLITE_OK && sqlite3_step(pStmt)==SQLITE_ROW ){
+    oputz("/* WARNING: "
+          "Script requires that SQLITE_DBCONFIG_DEFENSIVE be disabled */\n"
+    );
+  }
+  shellFinalize(&rc, pStmt);
+  return rc;
+}
+
 /*
 ** If an input line begins with "." then invoke this routine to
 ** process that line.
@@ -8328,6 +8346,7 @@ static int do_meta_command(char *zLine, ShellState *p){

    open_db(p, 0);

+    outputDumpWarning(p, zLike);
    if( (p->shellFlgs & SHFLG_DumpDataOnly)==0 ){
      /* When playing back a "dump", the content might appear in an order
      ** which causes immediate foreign key constraints to be violated.
@@ -8356,7 +8375,8 @@ static int do_meta_command(char *zLine, ShellState *p){
      zSql = sqlite3_mprintf(
        "SELECT sql FROM sqlite_schema AS o "
        "WHERE (%s) AND sql NOT NULL"
-        "  AND type IN ('index','trigger','view')",
+        "  AND type IN ('index','trigger','view') "
+        "ORDER BY type COLLATE NOCASE DESC",
        zLike
      );
      run_table_dump_query(p, zSql);
@@ -11391,6 +11411,88 @@ static int line_is_complete(char *zSql, int nSql){
  return rc;
 }

+/*
+** This function is called after processing each line of SQL in the
+** runOneSqlLine() function. Its purpose is to detect scenarios where
+** defensive mode should be automatically turned off. Specifically, when
+**
+**   1. The first line of input is "PRAGMA foreign_keys=OFF;",
+**   2. The second line of input is "BEGIN TRANSACTION;",
+**   3. The database is empty, and
+**   4. The shell is not running in --safe mode.
+** 
+** The implementation uses the ShellState.eRestoreState to maintain state:
+**
+**    0: Have not seen any SQL.
+**    1: Have seen "PRAGMA foreign_keys=OFF;".
+**    2-6: Currently running .dump transaction. If the "2" bit is set,
+**         disable DEFENSIVE when done. If "4" is set, disable DQS_DDL.
+**    7: Nothing left to do. This function becomes a no-op.
+*/
+static int doAutoDetectRestore(ShellState *p, const char *zSql){
+  int rc = SQLITE_OK;
+
+  if( p->eRestoreState<7 ){
+    switch( p->eRestoreState ){
+      case 0: {
+        const char *zExpect = "PRAGMA foreign_keys=OFF;";
+        assert( strlen(zExpect)==24 );
+        if( p->bSafeMode==0 && memcmp(zSql, zExpect, 25)==0 ){
+          p->eRestoreState = 1;
+        }else{
+          p->eRestoreState = 7;
+        }
+        break;
+      };
+  
+      case 1: {
+        int bIsDump = 0;
+        const char *zExpect = "BEGIN TRANSACTION;";
+        assert( strlen(zExpect)==18 );
+        if( memcmp(zSql, zExpect, 19)==0 ){
+          /* Now check if the database is empty. */
+          const char *zQuery = "SELECT 1 FROM sqlite_schema LIMIT 1";
+          sqlite3_stmt *pStmt = 0;
+  
+          bIsDump = 1;
+          shellPrepare(p->db, &rc, zQuery, &pStmt);
+          if( rc==SQLITE_OK && sqlite3_step(pStmt)==SQLITE_ROW ){
+            bIsDump = 0;
+          }
+          shellFinalize(&rc, pStmt);
+        }
+        if( bIsDump && rc==SQLITE_OK ){
+          int bDefense = 0;
+          int bDqsDdl = 0;
+          sqlite3_db_config(p->db, SQLITE_DBCONFIG_DEFENSIVE, -1, &bDefense);
+          sqlite3_db_config(p->db, SQLITE_DBCONFIG_DQS_DDL, -1, &bDqsDdl);
+          sqlite3_db_config(p->db, SQLITE_DBCONFIG_DEFENSIVE, 0, 0);
+          sqlite3_db_config(p->db, SQLITE_DBCONFIG_DQS_DDL, 1, 0);
+          p->eRestoreState = (bDefense ? 2 : 0) + (bDqsDdl ? 4 : 0);
+        }else{
+          p->eRestoreState = 7;
+        }
+        break;
+      }
+  
+      default: {
+        if( sqlite3_get_autocommit(p->db) ){
+          if( (p->eRestoreState & 2) ){
+            sqlite3_db_config(p->db, SQLITE_DBCONFIG_DEFENSIVE, 1, 0);
+          }
+          if( (p->eRestoreState & 4) ){
+            sqlite3_db_config(p->db, SQLITE_DBCONFIG_DQS_DDL, 0, 0);
+          }
+          p->eRestoreState = 7;
+        }
+        break;
+      }
+    }
+  }
+
+  return rc;
+}
+
 /*
 ** Run a single line of SQL.  Return the number of errors.
 */
@@ -11438,6 +11540,8 @@ static int runOneSqlLine(ShellState *p, char *zSql, FILE *in, int startline){
            sqlite3_changes64(p->db), sqlite3_total_changes64(p->db));
    oputf("%s\n", zLineBuf);
  }
+
+  if( doAutoDetectRestore(p, zSql) ) return 1;
  return 0;
 }

@@ -11822,7 +11926,7 @@ static void usage(int showDetail){
  }else{
    eputz("Use the -help option for additional information\n");
  }
-  exit(1);
+  exit(0);
 }

 /*
@@ -8039,9 +8039,11 @@ int sqlite3_vfs_unregister(sqlite3_vfs*);
 **
 ** ^(Some systems (for example, Windows 95) do not support the operation
 ** implemented by sqlite3_mutex_try().  On those systems, sqlite3_mutex_try()
-** will always return SQLITE_BUSY. The SQLite core only ever uses
-** sqlite3_mutex_try() as an optimization so this is acceptable
-** behavior.)^
+** will always return SQLITE_BUSY. In most cases the SQLite core only uses
+** sqlite3_mutex_try() as an optimization, so this is acceptable
+** behavior. The exceptions are unix builds that set the 
+** SQLITE_ENABLE_SETLK_TIMEOUT build option. In that case a working
+** sqlite3_mutex_try() is required.)^
 **
 ** ^The sqlite3_mutex_leave() routine exits a mutex that was
 ** previously entered by the same thread.   The behavior
@@ -328,6 +328,19 @@
 # undef SQLITE_USE_SEH
 #endif

+/*
+** Enable SQLITE_DIRECT_OVERFLOW_READ, unless the build explicitly
+** disables it using -DSQLITE_DIRECT_OVERFLOW_READ=0
+*/
+#if defined(SQLITE_DIRECT_OVERFLOW_READ) && SQLITE_DIRECT_OVERFLOW_READ+1==1
+  /* Disable if -DSQLITE_DIRECT_OVERFLOW_READ=0 */
+# undef SQLITE_DIRECT_OVERFLOW_READ
+#else
+  /* In all other cases, enable */
+# define SQLITE_DIRECT_OVERFLOW_READ 1
+#endif
+
+
 /*
 ** The SQLITE_THREADSAFE macro must be defined as 0, 1, or 2.
 ** 0 means mutexes are permanently disable and the library is never
@@ -1583,6 +1596,10 @@ struct FuncDefHash {
 };
 #define SQLITE_FUNC_HASH(C,L) (((C)+(L))%SQLITE_FUNC_HASH_SZ)

+#if defined(SQLITE_USER_AUTHENTICATION)
+# warning  "The SQLITE_USER_AUTHENTICATION extension is deprecated. \
+ See ext/userauth/user-auth.txt for details."
+#endif
 #ifdef SQLITE_USER_AUTHENTICATION
 /*
 ** Information held in the "sqlite3" database connection object and used
@@ -2753,6 +2770,7 @@ struct Index {
  unsigned isCovering:1;   /* True if this is a covering index */
  unsigned noSkipScan:1;   /* Do not try to use skip-scan if true */
  unsigned hasStat1:1;     /* aiRowLogEst values come from sqlite_stat1 */
+  unsigned bLowQual:1;     /* sqlite_stat1 says this is a low-quality index */
  unsigned bNoQuery:1;     /* Do not use this index to optimize queries */
  unsigned bAscKeyBug:1;   /* True if the bba7b69f9849b5bf bug applies */
  unsigned bHasVCol:1;     /* Index references one or more VIRTUAL columns */
@@ -187,7 +187,7 @@
 ** max_page_count macro.
 */
 #ifndef SQLITE_MAX_PAGE_COUNT
-# define SQLITE_MAX_PAGE_COUNT 1073741823
+# define SQLITE_MAX_PAGE_COUNT 0xfffffffe /* 4294967294 */
 #endif

 /*
@@ -362,7 +362,7 @@ int sqlite3_db_status(
    case SQLITE_DBSTATUS_CACHE_MISS:
    case SQLITE_DBSTATUS_CACHE_WRITE:{
      int i;
-      int nRet = 0;
+      u64 nRet = 0;
      assert( SQLITE_DBSTATUS_CACHE_MISS==SQLITE_DBSTATUS_CACHE_HIT+1 );
      assert( SQLITE_DBSTATUS_CACHE_WRITE==SQLITE_DBSTATUS_CACHE_HIT+2 );

@@ -375,7 +375,7 @@ int sqlite3_db_status(
      *pHighwater = 0; /* IMP: R-42420-56072 */
                       /* IMP: R-54100-20147 */
                       /* IMP: R-29431-39229 */
-      *pCurrent = nRet;
+      *pCurrent = (int)nRet & 0x7fffffff;
      break;
    }

@@ -991,6 +991,39 @@ static void intrealFunction(
  sqlite3_test_control(SQLITE_TESTCTRL_RESULT_INTREAL, context);
 }

+/*
+** These SQL functions attempt to return a value (their first argument)
+** that has been modified to have multiple datatypes.  For example both
+** TEXT and INTEGER.
+*/
+static void addTextTypeFunction(
+  sqlite3_context *context, 
+  int argc,  
+  sqlite3_value **argv
+){
+  (void)sqlite3_value_text(argv[0]);
+  (void)argc;
+  sqlite3_result_value(context, argv[0]);
+}
+static void addIntTypeFunction(
+  sqlite3_context *context, 
+  int argc,  
+  sqlite3_value **argv
+){
+  (void)sqlite3_value_int64(argv[0]);
+  (void)argc;
+  sqlite3_result_value(context, argv[0]);
+}
+static void addRealTypeFunction(
+  sqlite3_context *context, 
+  int argc,  
+  sqlite3_value **argv
+){
+  (void)sqlite3_value_double(argv[0]);
+  (void)argc;
+  sqlite3_result_value(context, argv[0]);
+}
+
 /*
 ** SQL function:  strtod(X)
 **
@@ -1103,6 +1136,22 @@ static int SQLITE_TCLAPI test_create_function(
          0, intrealFunction, 0, 0);
  }

+  /* The add_text_type(), add_int_type(), and add_real_type() functions
+  ** attempt to return a value that has multiple datatypes.
+  */
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "add_text_type", 1, SQLITE_UTF8,
+          0, addTextTypeFunction, 0, 0);
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "add_int_type", 1, SQLITE_UTF8,
+          0, addIntTypeFunction, 0, 0);
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "add_real_type", 1, SQLITE_UTF8,
+          0, addRealTypeFunction, 0, 0);
+  }
+
  /* Functions strtod() and dtostr() work as in the shell.  These routines
  ** use the standard C library to convert between floating point and
  ** text.  This is used to compare SQLite's internal conversion routines
@@ -8120,6 +8169,7 @@ static int SQLITE_TCLAPI tclLoadStaticExtensionCmd(
  extern int sqlite3_prefixes_init(sqlite3*,char**,const sqlite3_api_routines*);
 #endif
  extern int sqlite3_qpvtab_init(sqlite3*,char**,const sqlite3_api_routines*);
+  extern int sqlite3_randomjson_init(sqlite3*,char**,const sqlite3_api_routines*);
  extern int sqlite3_regexp_init(sqlite3*,char**,const sqlite3_api_routines*);
  extern int sqlite3_remember_init(sqlite3*,char**,const sqlite3_api_routines*);
  extern int sqlite3_series_init(sqlite3*,char**,const sqlite3_api_routines*);
@@ -8152,6 +8202,7 @@ static int SQLITE_TCLAPI tclLoadStaticExtensionCmd(
    { "prefixes",              sqlite3_prefixes_init             },
 #endif
    { "qpvtab",                sqlite3_qpvtab_init               },
+    { "randomjson",            sqlite3_randomjson_init           },
    { "regexp",                sqlite3_regexp_init               },
    { "remember",              sqlite3_remember_init             },
    { "series",                sqlite3_series_init               },
@@ -694,7 +694,8 @@ static int registerTestFunctions(
    { "test_extract",          2, SQLITE_UTF8, test_extract},
    { "test_zeroblob",  1, SQLITE_UTF8|SQLITE_DETERMINISTIC, test_zeroblob},
    { "test_getsubtype",       1, SQLITE_UTF8, test_getsubtype},
-    { "test_setsubtype",       2, SQLITE_UTF8, test_setsubtype},
+    { "test_setsubtype",       2, SQLITE_UTF8|SQLITE_RESULT_SUBTYPE,
+                                               test_setsubtype},
    { "test_frombind",        -1, SQLITE_UTF8, test_frombind},
  };
  int i;
@@ -141,7 +141,7 @@ void sqlite3ErrorClear(sqlite3 *db){
 */
 void sqlite3SystemError(sqlite3 *db, int rc){
  if( rc==SQLITE_IOERR_NOMEM ) return;
-#ifdef SQLITE_USE_SEH
+#if defined(SQLITE_USE_SEH) && !defined(SQLITE_OMIT_WAL)
  if( rc==SQLITE_IOERR_IN_PAGE ){
    int ii;
    int iErr;
@@ -2301,7 +2301,9 @@ case OP_Ge: {             /* same as TK_GE, jump, in1, in3 */
        }
      }
    }else if( affinity==SQLITE_AFF_TEXT && ((flags1 | flags3) & MEM_Str)!=0 ){
-      if( (flags1 & MEM_Str)==0 && (flags1&(MEM_Int|MEM_Real|MEM_IntReal))!=0 ){
+      if( (flags1 & MEM_Str)!=0 ){
+        pIn1->flags &= ~(MEM_Int|MEM_Real|MEM_IntReal);
+      }else if( (flags1&(MEM_Int|MEM_Real|MEM_IntReal))!=0 ){
        testcase( pIn1->flags & MEM_Int );
        testcase( pIn1->flags & MEM_Real );
        testcase( pIn1->flags & MEM_IntReal );
@@ -2310,7 +2312,9 @@ case OP_Ge: {             /* same as TK_GE, jump, in1, in3 */
        flags1 = (pIn1->flags & ~MEM_TypeMask) | (flags1 & MEM_TypeMask);
        if( NEVER(pIn1==pIn3) ) flags3 = flags1 | MEM_Str;
      }
-      if( (flags3 & MEM_Str)==0 && (flags3&(MEM_Int|MEM_Real|MEM_IntReal))!=0 ){
+      if( (flags3 & MEM_Str)!=0 ){
+        pIn3->flags &= ~(MEM_Int|MEM_Real|MEM_IntReal);
+      }else if( (flags3&(MEM_Int|MEM_Real|MEM_IntReal))!=0 ){
        testcase( pIn3->flags & MEM_Int );
        testcase( pIn3->flags & MEM_Real );
        testcase( pIn3->flags & MEM_IntReal );
@@ -3654,11 +3658,16 @@ case OP_MakeRecord: {
        switch( len ){
          default: zPayload[7] = (u8)(v&0xff); v >>= 8;
                   zPayload[6] = (u8)(v&0xff); v >>= 8;
+                   /* no break */ deliberate_fall_through
          case 6:  zPayload[5] = (u8)(v&0xff); v >>= 8;
                   zPayload[4] = (u8)(v&0xff); v >>= 8;
+                   /* no break */ deliberate_fall_through
          case 4:  zPayload[3] = (u8)(v&0xff); v >>= 8;
+                   /* no break */ deliberate_fall_through
          case 3:  zPayload[2] = (u8)(v&0xff); v >>= 8;
+                   /* no break */ deliberate_fall_through
          case 2:  zPayload[1] = (u8)(v&0xff); v >>= 8;
+                   /* no break */ deliberate_fall_through
          case 1:  zPayload[0] = (u8)(v&0xff);
        }
        zPayload += len;
@@ -1631,14 +1631,20 @@ static int valueFromExpr(
  }

  /* Handle negative integers in a single step.  This is needed in the
-  ** case when the value is -9223372036854775808.
-  */
-  if( op==TK_UMINUS
-   && (pExpr->pLeft->op==TK_INTEGER || pExpr->pLeft->op==TK_FLOAT) ){
-    pExpr = pExpr->pLeft;
-    op = pExpr->op;
-    negInt = -1;
-    zNeg = "-";
+  ** case when the value is -9223372036854775808. Except - do not do this
+  ** for hexadecimal literals.  */
+  if( op==TK_UMINUS ){
+    Expr *pLeft = pExpr->pLeft;
+    if( (pLeft->op==TK_INTEGER || pLeft->op==TK_FLOAT) ){
+      if( ExprHasProperty(pLeft, EP_IntValue)
+       || pLeft->u.zToken[0]!='0' || (pLeft->u.zToken[1] & ~0x20)!='X'
+      ){
+        pExpr = pLeft;
+        op = pExpr->op;
+        negInt = -1;
+        zNeg = "-";
+      }
+    }
  }

  if( op==TK_STRING || op==TK_FLOAT || op==TK_INTEGER ){
@@ -1647,12 +1653,26 @@ static int valueFromExpr(
    if( ExprHasProperty(pExpr, EP_IntValue) ){
      sqlite3VdbeMemSetInt64(pVal, (i64)pExpr->u.iValue*negInt);
    }else{
-      zVal = sqlite3MPrintf(db, "%s%s", zNeg, pExpr->u.zToken);
-      if( zVal==0 ) goto no_mem;
-      sqlite3ValueSetStr(pVal, -1, zVal, SQLITE_UTF8, SQLITE_DYNAMIC);
+      i64 iVal;
+      if( op==TK_INTEGER && 0==sqlite3DecOrHexToI64(pExpr->u.zToken, &iVal) ){
+        sqlite3VdbeMemSetInt64(pVal, iVal*negInt);
+      }else{
+        zVal = sqlite3MPrintf(db, "%s%s", zNeg, pExpr->u.zToken);
+        if( zVal==0 ) goto no_mem;
+        sqlite3ValueSetStr(pVal, -1, zVal, SQLITE_UTF8, SQLITE_DYNAMIC);
+      }
    }
-    if( (op==TK_INTEGER || op==TK_FLOAT ) && affinity==SQLITE_AFF_BLOB ){
-      sqlite3ValueApplyAffinity(pVal, SQLITE_AFF_NUMERIC, SQLITE_UTF8);
+    if( affinity==SQLITE_AFF_BLOB ){
+      if( op==TK_FLOAT ){
+        assert( pVal && pVal->z && pVal->flags==(MEM_Str|MEM_Term) );
+        sqlite3AtoF(pVal->z, &pVal->u.r, pVal->n, SQLITE_UTF8);
+        pVal->flags = MEM_Real;
+      }else if( op==TK_INTEGER ){
+        /* This case is required by -9223372036854775808 and other strings
+        ** that look like integers but cannot be handled by the
+        ** sqlite3DecOrHexToI64() call above.  */
+        sqlite3ValueApplyAffinity(pVal, SQLITE_AFF_NUMERIC, SQLITE_UTF8);
+      }
    }else{
      sqlite3ValueApplyAffinity(pVal, affinity, SQLITE_UTF8);
    }
@@ -1290,7 +1290,7 @@ static void vdbeSorterExtendFile(sqlite3 *db, sqlite3_file *pFd, i64 nByte){
    sqlite3OsFileControlHint(pFd, SQLITE_FCNTL_CHUNK_SIZE, &chunksize);
    sqlite3OsFileControlHint(pFd, SQLITE_FCNTL_SIZE_HINT, &nByte);
    sqlite3OsFetch(pFd, 0, (int)nByte, &p);
-    if( p ) sqlite3OsUnfetch(pFd, 0, p);
+    if( NEVER(p) ) sqlite3OsUnfetch(pFd, 0, p);
  }
 }
 #else
@@ -315,7 +315,6 @@ void sqlite3VtabUnlockList(sqlite3 *db){

  if( p ){
    db->pDisconnect = 0;
-    sqlite3ExpirePreparedStatements(db, 0);
    do {
      VTable *pNext = p->pNext;
      sqlite3VtabUnlock(p);
@@ -2902,6 +2902,37 @@ static int walBeginShmUnreliable(Wal *pWal, int *pChanged){
  return rc;
 }

+/*
+** The final argument passed to walTryBeginRead() is of type (int*). The
+** caller should invoke walTryBeginRead as follows:
+**
+**   int cnt = 0;
+**   do {
+**     rc = walTryBeginRead(..., &cnt);
+**   }while( rc==WAL_RETRY );
+**
+** The final value of "cnt" is of no use to the caller. It is used by
+** the implementation of walTryBeginRead() as follows:
+**
+**   + Each time walTryBeginRead() is called, it is incremented. Once
+**     it reaches WAL_RETRY_PROTOCOL_LIMIT - indicating that walTryBeginRead()
+**     has many times been invoked and failed with WAL_RETRY - walTryBeginRead()
+**     returns SQLITE_PROTOCOL.
+**
+**   + If SQLITE_ENABLE_SETLK_TIMEOUT is defined and walTryBeginRead() failed
+**     because a blocking lock timed out (SQLITE_BUSY_TIMEOUT from the OS
+**     layer), the WAL_RETRY_BLOCKED_MASK bit is set in "cnt". In this case
+**     the next invocation of walTryBeginRead() may omit an expected call to 
+**     sqlite3OsSleep(). There has already been a delay when the previous call
+**     waited on a lock.
+*/
+#define WAL_RETRY_PROTOCOL_LIMIT 100
+#ifdef SQLITE_ENABLE_SETLK_TIMEOUT
+# define WAL_RETRY_BLOCKED_MASK    0x10000000
+#else
+# define WAL_RETRY_BLOCKED_MASK    0
+#endif
+
 /*
 ** Attempt to start a read transaction.  This might fail due to a race or
 ** other transient condition.  When that happens, it returns WAL_RETRY to
@@ -2952,7 +2983,7 @@ static int walBeginShmUnreliable(Wal *pWal, int *pChanged){
 ** so it takes care to hold an exclusive lock on the corresponding
 ** WAL_READ_LOCK() while changing values.
 */
-static int walTryBeginRead(Wal *pWal, int *pChanged, int useWal, int cnt){
+static int walTryBeginRead(Wal *pWal, int *pChanged, int useWal, int *pCnt){
  volatile WalCkptInfo *pInfo;    /* Checkpoint information in wal-index */
  u32 mxReadMark;                 /* Largest aReadMark[] value */
  int mxI;                        /* Index of largest aReadMark[] value */
@@ -2985,27 +3016,34 @@ static int walTryBeginRead(Wal *pWal, int *pChanged, int useWal, int cnt){
  ** so that on the 100th (and last) RETRY we delay for 323 milliseconds.
  ** The total delay time before giving up is less than 10 seconds.
  */
-  if( cnt>5 ){
+  (*pCnt)++;
+  if( *pCnt>5 ){
    int nDelay = 1;                      /* Pause time in microseconds */
-    if( cnt>100 ){
+    int cnt = (*pCnt & ~WAL_RETRY_BLOCKED_MASK);
+    if( cnt>WAL_RETRY_PROTOCOL_LIMIT ){
      VVA_ONLY( pWal->lockError = 1; )
      return SQLITE_PROTOCOL;
    }
-    if( cnt>=10 ) nDelay = (cnt-9)*(cnt-9)*39;
+    if( *pCnt>=10 ) nDelay = (cnt-9)*(cnt-9)*39;
 #ifdef SQLITE_ENABLE_SETLK_TIMEOUT
    /* In SQLITE_ENABLE_SETLK_TIMEOUT builds, configure the file-descriptor
    ** to block for locks for approximately nDelay us. This affects three
    ** locks: (a) the shared lock taken on the DMS slot in os_unix.c (if
    ** using os_unix.c), (b) the WRITER lock taken in walIndexReadHdr() if the
-    ** first attempted read fails, and (c) the shared lock taken on the DMS
-    ** slot in os_unix.c. All three of these locks are attempted from within 
-    ** the call to walIndexReadHdr() below.  */
+    ** first attempted read fails, and (c) the shared lock taken on the 
+    ** read-mark.  
+    **
+    ** If the previous call failed due to an SQLITE_BUSY_TIMEOUT error,
+    ** then sleep for the minimum of 1us. The previous call already provided 
+    ** an extra delay while it was blocking on the lock.
+    */
    nBlockTmout = (nDelay+998) / 1000;
    if( !useWal && walEnableBlockingMs(pWal, nBlockTmout) ){
-      nDelay = 1;
+      if( *pCnt & WAL_RETRY_BLOCKED_MASK ) nDelay = 1;
    }
 #endif
    sqlite3OsSleep(pWal->pVfs, nDelay);
+    *pCnt &= ~WAL_RETRY_BLOCKED_MASK;
  }

  if( !useWal ){
@@ -3015,7 +3053,10 @@ static int walTryBeginRead(Wal *pWal, int *pChanged, int useWal, int cnt){
    }
 #ifdef SQLITE_ENABLE_SETLK_TIMEOUT
    walDisableBlocking(pWal);
-    if( rc==SQLITE_BUSY_TIMEOUT ) rc = SQLITE_BUSY;
+    if( rc==SQLITE_BUSY_TIMEOUT ){
+      rc = SQLITE_BUSY;
+      *pCnt |= WAL_RETRY_BLOCKED_MASK;
+    }
 #endif
    if( rc==SQLITE_BUSY ){
      /* If there is not a recovery running in another thread or process
@@ -3135,6 +3176,13 @@ static int walTryBeginRead(Wal *pWal, int *pChanged, int useWal, int cnt){
  rc = walLockShared(pWal, WAL_READ_LOCK(mxI));
  walDisableBlocking(pWal);
  if( rc ){
+#ifdef SQLITE_ENABLE_SETLK_TIMEOUT
+    if( rc==SQLITE_BUSY_TIMEOUT ){
+      *pCnt |= WAL_RETRY_BLOCKED_MASK;
+    }
+#else
+    assert( rc!=SQLITE_BUSY_TIMEOUT );
+#endif
    assert( (rc&0xFF)!=SQLITE_BUSY||rc==SQLITE_BUSY||rc==SQLITE_BUSY_TIMEOUT );
    return (rc&0xFF)==SQLITE_BUSY ? WAL_RETRY : rc;
  }
@@ -3324,7 +3372,7 @@ static int walBeginReadTransaction(Wal *pWal, int *pChanged){
 #endif

  do{
-    rc = walTryBeginRead(pWal, pChanged, 0, ++cnt);
+    rc = walTryBeginRead(pWal, pChanged, 0, &cnt);
  }while( rc==WAL_RETRY );
  testcase( (rc&0xff)==SQLITE_BUSY );
  testcase( (rc&0xff)==SQLITE_IOERR );
@@ -3505,6 +3553,7 @@ static int walFindFrame(
        iRead = iFrame;
      }
      if( (nCollide--)==0 ){
+        *piRead = 0;
        return SQLITE_CORRUPT_BKPT;
      }
      iKey = walNextHash(iKey);
@@ -3808,7 +3857,7 @@ static int walRestartLog(Wal *pWal){
    cnt = 0;
    do{
      int notUsed;
-      rc = walTryBeginRead(pWal, &notUsed, 1, ++cnt);
+      rc = walTryBeginRead(pWal, &notUsed, 1, &cnt);
    }while( rc==WAL_RETRY );
    assert( (rc&0xff)!=SQLITE_BUSY ); /* BUSY not possible when useWal==1 */
    testcase( (rc&0xff)==SQLITE_IOERR );
@@ -2245,17 +2245,34 @@ void sqlite3WhereClausePrint(WhereClause *pWC){
 #ifdef WHERETRACE_ENABLED
 /*
 ** Print a WhereLoop object for debugging purposes
+**
+** Format example:
+**
+**     .--- Position in WHERE clause           rSetup, rRun, nOut ---.
+**     |                                                             |
+**     |  .--- selfMask                       nTerm ------.          |
+**     |  |                                               |          |
+**     |  |   .-- prereq    Idx          wsFlags----.     |          |
+**     |  |   |             Name                    |     |          |
+**     |  |   |           __|__        nEq ---.  ___|__   |        __|__
+**     | / \ / \         /     \              | /      \ / \      /     \
+**     1.002.001         t2.t2xy              2 f 010241 N 2 cost 0,56,31
 */
-void sqlite3WhereLoopPrint(WhereLoop *p, WhereClause *pWC){
-  WhereInfo *pWInfo = pWC->pWInfo;
-  int nb = 1+(pWInfo->pTabList->nSrc+3)/4;
-  SrcItem *pItem = pWInfo->pTabList->a + p->iTab;
-  Table *pTab = pItem->pTab;
-  Bitmask mAll = (((Bitmask)1)<<(nb*4)) - 1;
-  sqlite3DebugPrintf("%c%2d.%0*llx.%0*llx", p->cId,
-                     p->iTab, nb, p->maskSelf, nb, p->prereq & mAll);
-  sqlite3DebugPrintf(" %12s",
-                     pItem->zAlias ? pItem->zAlias : pTab->zName);
+void sqlite3WhereLoopPrint(const WhereLoop *p, const WhereClause *pWC){
+  if( pWC ){
+    WhereInfo *pWInfo = pWC->pWInfo;
+    int nb = 1+(pWInfo->pTabList->nSrc+3)/4;
+    SrcItem *pItem = pWInfo->pTabList->a + p->iTab;
+    Table *pTab = pItem->pTab;
+    Bitmask mAll = (((Bitmask)1)<<(nb*4)) - 1;
+    sqlite3DebugPrintf("%c%2d.%0*llx.%0*llx", p->cId,
+                       p->iTab, nb, p->maskSelf, nb, p->prereq & mAll);
+    sqlite3DebugPrintf(" %12s",
+                       pItem->zAlias ? pItem->zAlias : pTab->zName);
+  }else{
+    sqlite3DebugPrintf("%c%2d.%03llx.%03llx %c%d",
+         p->cId, p->iTab, p->maskSelf, p->prereq & 0xfff, p->cId, p->iTab);
+  }
  if( (p->wsFlags & WHERE_VIRTUALTABLE)==0 ){
    const char *zName;
    if( p->u.btree.pIndex && (zName = p->u.btree.pIndex->zName)!=0 ){
@@ -2292,6 +2309,15 @@ void sqlite3WhereLoopPrint(WhereLoop *p, WhereClause *pWC){
    }
  }
 }
+void sqlite3ShowWhereLoop(const WhereLoop *p){
+  if( p ) sqlite3WhereLoopPrint(p, 0);
+}
+void sqlite3ShowWhereLoopList(const WhereLoop *p){
+  while( p ){
+    sqlite3ShowWhereLoop(p);
+    p = p->pNextLoop;
+  }
+}
 #endif

 /*
@@ -2404,46 +2430,60 @@ static void whereInfoFree(sqlite3 *db, WhereInfo *pWInfo){
 }

 /*
-** Return TRUE if all of the following are true:
+** Return TRUE if X is a proper subset of Y but is of equal or less cost.
+** In other words, return true if all constraints of X are also part of Y
+** and Y has additional constraints that might speed the search that X lacks
+** but the cost of running X is not more than the cost of running Y.
 **
-**   (1)  X has the same or lower cost, or returns the same or fewer rows,
-**        than Y.
-**   (2)  X uses fewer WHERE clause terms than Y
-**   (3)  Every WHERE clause term used by X is also used by Y
-**   (4)  X skips at least as many columns as Y
-**   (5)  If X is a covering index, than Y is too
+** In other words, return true if the cost relationwship between X and Y
+** is inverted and needs to be adjusted.
 **
-** Conditions (2) and (3) mean that X is a "proper subset" of Y.
-** If X is a proper subset of Y then Y is a better choice and ought
-** to have a lower cost.  This routine returns TRUE when that cost
-** relationship is inverted and needs to be adjusted.  Constraint (4)
-** was added because if X uses skip-scan less than Y it still might
-** deserve a lower cost even if it is a proper subset of Y.  Constraint (5)
-** was added because a covering index probably deserves to have a lower cost
-** than a non-covering index even if it is a proper subset.
+** Case 1:
+**
+**   (1a)  X and Y use the same index.
+**   (1b)  X has fewer == terms than Y
+**   (1c)  Neither X nor Y use skip-scan
+**   (1d)  X does not have a a greater cost than Y
+**
+** Case 2:
+**
+**   (2a)  X has the same or lower cost, or returns the same or fewer rows,
+**         than Y.
+**   (2b)  X uses fewer WHERE clause terms than Y
+**   (2c)  Every WHERE clause term used by X is also used by Y
+**   (2d)  X skips at least as many columns as Y
+**   (2e)  If X is a covering index, than Y is too
 */
 static int whereLoopCheaperProperSubset(
  const WhereLoop *pX,       /* First WhereLoop to compare */
  const WhereLoop *pY        /* Compare against this WhereLoop */
 ){
  int i, j;
-  if( pX->nLTerm-pX->nSkip >= pY->nLTerm-pY->nSkip ){
-    return 0; /* X is not a subset of Y */
+  if( pX->rRun>pY->rRun && pX->nOut>pY->nOut ) return 0; /* (1d) and (2a) */
+  assert( (pX->wsFlags & WHERE_VIRTUALTABLE)==0 );
+  assert( (pY->wsFlags & WHERE_VIRTUALTABLE)==0 );
+  if( pX->u.btree.nEq < pY->u.btree.nEq                  /* (1b) */
+   && pX->u.btree.pIndex==pY->u.btree.pIndex             /* (1a) */
+   && pX->nSkip==0 && pY->nSkip==0                       /* (1c) */
+  ){
+    return 1;  /* Case 1 is true */
  }
-  if( pX->rRun>pY->rRun && pX->nOut>pY->nOut ) return 0;
-  if( pY->nSkip > pX->nSkip ) return 0;
+  if( pX->nLTerm-pX->nSkip >= pY->nLTerm-pY->nSkip ){
+    return 0;                                            /* (2b) */
+  }
+  if( pY->nSkip > pX->nSkip ) return 0;                  /* (2d) */
  for(i=pX->nLTerm-1; i>=0; i--){
    if( pX->aLTerm[i]==0 ) continue;
    for(j=pY->nLTerm-1; j>=0; j--){
      if( pY->aLTerm[j]==pX->aLTerm[i] ) break;
    }
-    if( j<0 ) return 0;  /* X not a subset of Y since term X[i] not used by Y */
+    if( j<0 ) return 0;                                  /* (2c) */
  }
  if( (pX->wsFlags&WHERE_IDX_ONLY)!=0
   && (pY->wsFlags&WHERE_IDX_ONLY)==0 ){
-    return 0;  /* Constraint (5) */
+    return 0;                                            /* (2e) */
  }
-  return 1;  /* All conditions meet */
+  return 1;  /* Case 2 is true */
 }

 /*
@@ -2933,7 +2973,10 @@ static int whereLoopAddBtreeIndex(
    assert( pNew->u.btree.nBtm==0 );
    opMask = WO_EQ|WO_IN|WO_GT|WO_GE|WO_LT|WO_LE|WO_ISNULL|WO_IS;
  }
-  if( pProbe->bUnordered ) opMask &= ~(WO_GT|WO_GE|WO_LT|WO_LE);
+  if( pProbe->bUnordered || pProbe->bLowQual ){
+    if( pProbe->bUnordered ) opMask &= ~(WO_GT|WO_GE|WO_LT|WO_LE);
+    if( pProbe->bLowQual )   opMask &= ~(WO_EQ|WO_IN|WO_IS);
+  }

  assert( pNew->u.btree.nEq<pProbe->nColumn );
  assert( pNew->u.btree.nEq<pProbe->nKeyCol
@@ -6038,7 +6081,10 @@ WhereInfo *sqlite3WhereBegin(
  ** field (type Bitmask) it must be aligned on an 8-byte boundary on
  ** some architectures. Hence the ROUND8() below.
  */
-  nByteWInfo = ROUND8P(sizeof(WhereInfo)+(nTabList-1)*sizeof(WhereLevel));
+  nByteWInfo = ROUND8P(sizeof(WhereInfo));
+  if( nTabList>1 ){
+    nByteWInfo = ROUND8P(nByteWInfo + (nTabList-1)*sizeof(WhereLevel));
+  }
  pWInfo = sqlite3DbMallocRawNN(db, nByteWInfo + sizeof(WhereLoop));
  if( db->mallocFailed ){
    sqlite3DbFree(db, pWInfo);
@@ -6600,6 +6646,11 @@ whereBeginError:
    pParse->nQueryLoop = pWInfo->savedNQueryLoop;
    whereInfoFree(db, pWInfo);
  }
+#ifdef WHERETRACE_ENABLED
+  /* Prevent harmless compiler warnings about debugging routines
+  ** being declared but never used */
+  sqlite3ShowWhereLoopList(0);
+#endif /* WHERETRACE_ENABLED */
  return 0;
 }

@@ -502,7 +502,7 @@ Bitmask sqlite3WhereGetMask(WhereMaskSet*,int);
 #ifdef WHERETRACE_ENABLED
 void sqlite3WhereClausePrint(WhereClause *pWC);
 void sqlite3WhereTermPrint(WhereTerm *pTerm, int iTerm);
-void sqlite3WhereLoopPrint(WhereLoop *p, WhereClause *pWC);
+void sqlite3WhereLoopPrint(const WhereLoop *p, const WhereClause *pWC);
 #endif
 WhereTerm *sqlite3WhereFindTerm(
  WhereClause *pWC,     /* The WHERE clause to be searched */
@@ -472,6 +472,16 @@ do_execsql_test 9.5 {
  FROM t1;
 } {6}

- 
+# 2023-12-16
+# New test case for check-in [4470f657d2069972] from 2023-11-02
+# https://bugs.chromium.org/p/chromium/issues/detail?id=1511689
+#
+do_execsql_test 10.1 {
+  DROP TABLE IF EXISTS t0;
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t0(c1, c2);  INSERT INTO t0 VALUES(1,2);
+  CREATE TABLE t1(c3, c4);  INSERT INTO t1 VALUES(3,4);
+  SELECT * FROM t0 WHERE EXISTS (SELECT 1 FROM t1 GROUP BY c3 HAVING ( SELECT count(*) FROM (SELECT 1 UNION ALL SELECT sum(DISTINCT c1) ) ) ) BETWEEN 1 AND 1;
+} {1 2}

 finish_test
@@ -371,7 +371,7 @@ do_test alter2-7.5 {
  execsql {
    SELECT a, typeof(a), b, typeof(b), c, typeof(c) FROM t1 LIMIT 1;
  }
-} {1 integer -123 integer 5 text}
+} {1 integer -123.0 real 5 text}

 #-----------------------------------------------------------------------
 # Test that UPDATE trigger tables work with default values, and that when
@@ -397,11 +397,11 @@ do_test alter2-8.2 {
    UPDATE t1 SET c = 10 WHERE a = 1;
    SELECT a, typeof(a), b, typeof(b), c, typeof(c) FROM t1 LIMIT 1;
  }
-} {1 integer -123 integer 10 text}
+} {1 integer -123.0 real 10 text}
 ifcapable trigger {
  do_test alter2-8.3 {
    set ::val
-  } {-123 integer 5 text -123 integer 10 text}
+  } {-123.0 real 5 text -123.0 real 10 text}
 }

 #-----------------------------------------------------------------------
@@ -425,7 +425,7 @@ ifcapable trigger {
      DELETE FROM t1 WHERE a = 2;
    }
    set ::val
-  } {-123 integer 5 text}
+  } {-123.0 real 5 text}
 }

 #-----------------------------------------------------------------------
@@ -209,8 +209,8 @@ datetest 3.16 "strftime('[repeat 200 %Y]','2003-10-31')" [repeat 200 2003]
 datetest 3.17 "strftime('[repeat 200 abc%m123]','2003-10-31')" \
    [repeat 200 abc10123]

-foreach c {a b c g h i n o q r t v x y z
-           A B C D E G K L N O Q V Z
+foreach c {a b c h i n o q r t v x y z
+           A B C D E K L N O Q Z
           0 1 2 3 4 5 6 6 7 9 _} {
  datetest 3.18.$c "strftime('%$c','2003-10-31')" NULL
 }
@@ -24,12 +24,12 @@ ifcapable {!datetime} {
 }

 if {$tcl_platform(os)=="Linux"} {
-  set FMT {%d,%e,%F,%H,%k,%I,%l,%j,%m,%M,%u,%w,%W,%Y,%%,%P,%p}
+  set FMT {%d,%e,%F,%H,%k,%I,%l,%j,%m,%M,%u,%w,%W,%Y,%%,%P,%p,%U,%V,%G,%g}
 } else {
  set FMT {%d,%e,%F,%H,%I,%j,%p,%R,%u,%w,%W,%%}
 }
-for {set i 0} {$i<=24854} {incr i} {
-  set TS [expr {$i*86401}]
+for {set i 0} {$i<=24858} {incr i} {
+  set TS [expr {$i*86390}]
  do_execsql_test date4-$i {
    SELECT strftime($::FMT,$::TS,'unixepoch');
  } [list [strftime $FMT $TS]]
@@ -0,0 +1,42 @@
+# 2023 December 16
+#
+#    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 runs all tests.
+#
+# $Id: fts3.test,v 1.2 2008/07/23 18:17:32 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix fts3integrity
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+  
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts3(x);
+  INSERT INTO t1 VALUES('first row');
+  INSERT INTO t1 VALUES('second row');
+
+  CREATE TABLE t2(x PRIMARY KEY);
+  INSERT INTO t2 VALUES('first row');
+  INSERT INTO t2 VALUES('second row');
+}
+
+sqlite3 db2 test.db
+
+do_execsql_test -db db2 1.1 {
+  CREATE TABLE t3(x, y);
+}
+
+do_execsql_test 1.2 {
+  PRAGMA integrity_check;
+} {ok}
+
+finish_test
@@ -54,5 +54,22 @@ do_execsql_test 2.3 {
  PRAGMA integrity_check(t2);
 } {{malformed inverted index for FTS4 table main.t2}}

+#-------------------------------------------------------------------------
+# Test that integrity-check works on a read-only database.
+#
+reset_db
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE x1 USING fts4(a, b);
+  INSERT INTO x1 VALUES('one', 'two');
+  INSERT INTO x1 VALUES('three', 'four');
+}
+db close
+sqlite3 db test.db -readonly 1
+
+do_execsql_test 3.1 {
+  PRAGMA integrity_check;
+} {ok}
+
+

 finish_test
@@ -1042,6 +1042,9 @@ do_test func-21.8 {
    SELECT replace('aaaaaaa', 'a', '0123456789');
  }
 } {0123456789012345678901234567890123456789012345678901234567890123456789}
+do_execsql_test func-21.9 {
+  SELECT typeof(replace(1,'',0));
+} {text}

 ifcapable tclvar {
  do_test func-21.9 {
@@ -92,7 +92,7 @@ do_execsql_test func4-1.22 {
 } {{}}
 do_execsql_test func4-1.23 {
  SELECT tointeger(-9223372036854775808 - 1);
-} {-9223372036854775808}
+} {{}}
 do_execsql_test func4-1.24 {
  SELECT tointeger(-9223372036854775808);
 } {-9223372036854775808}
@@ -269,7 +269,7 @@ ifcapable floatingpoint {
  } {-9.223372036854776e+18}
  do_execsql_test func4-2.24 {
    SELECT toreal(-9223372036854775808);
-  } {-9.223372036854776e+18}
+  } {{}}
  if {$highPrecision(2)} {
    do_execsql_test func4-2.25 {
      SELECT toreal(-9223372036854775808 + 1);
@@ -277,7 +277,7 @@ ifcapable floatingpoint {
  }
  do_execsql_test func4-2.26 {
    SELECT toreal(-9223372036854775807 - 1);
-  } {-9.223372036854776e+18}
+  } {{}}
  if {$highPrecision(2)} {
    do_execsql_test func4-2.27 {
      SELECT toreal(-9223372036854775807);
@@ -461,7 +461,7 @@ ifcapable check {
    catchsql {
      INSERT INTO t1 (x) VALUES ('-9223372036854775809');
    }
-  } {0 {}}
+  } {1 {CHECK constraint failed: tointeger(x) IS NOT NULL}}
  if {$highPrecision(1)} {
    do_test func4-3.19 {
      catchsql {
@@ -573,10 +573,10 @@ ifcapable floatingpoint {
  } {1}
  do_execsql_test func4-5.6 {
    SELECT tointeger(toreal(-9223372036854775808 - 1));
-  } {-9223372036854775808}
+  } {{}}
  do_execsql_test func4-5.7 {
    SELECT tointeger(toreal(-9223372036854775808));
-  } {-9223372036854775808}
+  } {{}}
  if {$highPrecision(2)} {
    do_execsql_test func4-5.8 {
      SELECT tointeger(toreal(-9223372036854775808 + 1));
@@ -159,9 +159,10 @@ static struct GlobalVars {
 } g;

 /*
-** Include the external vt02.c module.
+** Include the external vt02.c and randomjson.c modules.
 */
 extern int sqlite3_vt02_init(sqlite3*,char***,void*);
+extern int sqlite3_randomjson_init(sqlite3*,char***,void*);


 /*
@@ -1297,6 +1298,9 @@ int runCombinedDbSqlInput(
  /* Add the vt02 virtual table */
  sqlite3_vt02_init(cx.db, 0, 0);

+  /* Add the random_json() and random_json5() functions */
+  sqlite3_randomjson_init(cx.db, 0, 0);
+
  /* Add support for sqlite_dbdata and sqlite_dbptr virtual tables used
  ** by the recovery API */
  sqlite3_dbdata_init(cx.db, 0, 0);
--- a/Show More
+++ b/Show More
@@ -1 +1 @@
 .45.0
 .46.0