Fix the formatting of %c in the printf() SQL function.

FossilOrigin-Name: 3375571a5e267744c19a7c310840256cec57a242
Add the printf() SQL function.
2013-12-17 15:58:42 +00:00 · 2013-12-17 15:03:06 +00:00 · 2013-12-14 13:44:22 +00:00 · 2013-12-13 20:45:50 +00:00 · 2013-12-13 19:48:04 +00:00 · 2013-12-13 19:35:21 +00:00
102 changed files with 3779 additions and 1330 deletions
@@ -534,7 +534,7 @@ mptester$(EXE):	sqlite3.c $(TOP)/mptest/mptest.c
 	mkdir tsrc
 	cp -f $(SRC) tsrc
 	rm tsrc/sqlite.h.in tsrc/parse.y
-	$(TCLSH_CMD) $(TOP)/tool/vdbe-compress.tcl <tsrc/vdbe.c >vdbe.new
+	$(TCLSH_CMD) $(TOP)/tool/vdbe-compress.tcl $(OPTS) <tsrc/vdbe.c >vdbe.new
 	mv vdbe.new tsrc/vdbe.c
 	touch .target_source

@@ -940,6 +940,9 @@ showdb$(TEXE):	$(TOP)/tool/showdb.c sqlite3.c
 wordcount$(TEXE):	$(TOP)/test/wordcount.c sqlite3.c
 	$(LTLINK) -o $@ $(TOP)/test/wordcount.c sqlite3.c $(TLIBS)

+speedtest1$(TEXE):	$(TOP)/test/wordcount.c sqlite3.lo
+	$(LTLINK) -o $@ $(TOP)/test/speedtest1.c sqlite3.lo $(TLIBS)
+
 # Standard install and cleanup targets
 #
 lib_install:	libsqlite3.la
@@ -162,7 +162,7 @@ RC = rc.exe
 !IFDEF NCC
 NCC = $(NCC:\\=\)
 !ELSEIF $(XCOMPILE)!=0
-NCC = "$(VCINSTALLDIR)\bin\cl.exe"
+NCC = "$(VCINSTALLDIR)\bin\$(CC)"
 NCC = $(NCC:\\=\)
 !ELSE
 NCC = $(CC)
@@ -911,7 +911,7 @@ mptester.exe:	$(TOP)\mptest\mptest.c libsqlite3.lib $(LIBRESOBJS) sqlite3.h
 	-mkdir tsrc
 	for %i in ($(SRC)) do copy /Y %i tsrc
 	del /Q tsrc\sqlite.h.in tsrc\parse.y
-	$(TCLSH_CMD) $(TOP)\tool\vdbe-compress.tcl < tsrc\vdbe.c > vdbe.new
+	$(TCLSH_CMD) $(TOP)\tool\vdbe-compress.tcl $(OPTS) < tsrc\vdbe.c > vdbe.new
 	move vdbe.new tsrc\vdbe.c
 	echo > .target_source

@@ -1334,13 +1334,17 @@ sqlite3_analyzer.exe:	sqlite3_analyzer.c $(LIBRESOBJS)
 	$(LTLINK) -DBUILD_sqlite -DTCLSH=2 -I$(TCLINCDIR) sqlite3_analyzer.c \
 		/link $(LTLINKOPTS) $(LTLIBPATHS) $(LIBRESOBJS) $(LTLIBS) $(TLIBS)

-showdb.exe:	$(TOP)/tool/showdb.c sqlite3.c
+showdb.exe:	$(TOP)\tool\showdb.c sqlite3.c
 	$(LTLINK) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION -o $@ \
-		$(TOP)/tool/showdb.c sqlite3.c
+		$(TOP)\tool\showdb.c sqlite3.c

-wordcount.exe:	$(TOP)/test/wordcount.c sqlite3.c
+wordcount.exe:	$(TOP)\test\wordcount.c sqlite3.c
 	$(LTLINK) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION -o $@ \
-		$(TOP)/test/wordcount.c sqlite3.c
+		$(TOP)\test\wordcount.c sqlite3.c
+
+speedtest1.exe:	$(TOP)\test\speedtest1.c sqlite3.c
+	$(LTLINK) -DSQLITE_OMIT_LOAD_EXTENSION -o $@ \
+		$(TOP)\test\speedtest1.c sqlite3.c

 clean:
 	del /Q *.lo *.ilk *.lib *.obj *.pdb sqlite3.exe libsqlite3.lib
@@ -1 +1 @@
-3.8.2
+3.8.3
@@ -28,7 +28,6 @@ END {
  printf "#define TK_%-29s %4d\n", "COLUMN",          ++max
  printf "#define TK_%-29s %4d\n", "AGG_FUNCTION",    ++max
  printf "#define TK_%-29s %4d\n", "AGG_COLUMN",      ++max
-  printf "#define TK_%-29s %4d\n", "CONST_FUNC",      ++max
  printf "#define TK_%-29s %4d\n", "UMINUS",          ++max
  printf "#define TK_%-29s %4d\n", "UPLUS",           ++max
 }
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.62 for sqlite 3.8.2.
+# Generated by GNU Autoconf 2.62 for sqlite 3.8.3.
 #
 # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
 # 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
@@ -743,8 +743,8 @@ SHELL=${CONFIG_SHELL-/bin/sh}
 # Identity of this package.
 PACKAGE_NAME='sqlite'
 PACKAGE_TARNAME='sqlite'
-PACKAGE_VERSION='3.8.2'
-PACKAGE_STRING='sqlite 3.8.2'
+PACKAGE_VERSION='3.8.3'
+PACKAGE_STRING='sqlite 3.8.3'
 PACKAGE_BUGREPORT=''

 # Factoring default headers for most tests.
@@ -1483,7 +1483,7 @@ if test "$ac_init_help" = "long"; then
  # Omit some internal or obsolete options to make the list less imposing.
  # This message is too long to be a string in the A/UX 3.1 sh.
  cat <<_ACEOF
-\`configure' configures sqlite 3.8.2 to adapt to many kinds of systems.
+\`configure' configures sqlite 3.8.3 to adapt to many kinds of systems.

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

@@ -1548,7 +1548,7 @@ fi

 if test -n "$ac_init_help"; then
  case $ac_init_help in
-     short | recursive ) echo "Configuration of sqlite 3.8.2:";;
+     short | recursive ) echo "Configuration of sqlite 3.8.3:";;
   esac
  cat <<\_ACEOF

@@ -1664,7 +1664,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
  cat <<\_ACEOF
-sqlite configure 3.8.2
+sqlite configure 3.8.3
 generated by GNU Autoconf 2.62

 Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
@@ -1678,7 +1678,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.

-It was created by sqlite $as_me 3.8.2, which was
+It was created by sqlite $as_me 3.8.3, which was
 generated by GNU Autoconf 2.62.  Invocation command line was

  $ $0 $@
@@ -14021,7 +14021,7 @@ exec 6>&1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by sqlite $as_me 3.8.2, which was
+This file was extended by sqlite $as_me 3.8.3, which was
 generated by GNU Autoconf 2.62.  Invocation command line was

  CONFIG_FILES    = $CONFIG_FILES
@@ -14074,7 +14074,7 @@ Report bugs to <bug-autoconf@gnu.org>."
 _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_version="\\
-sqlite config.status 3.8.2
+sqlite config.status 3.8.3
 configured by $0, generated by GNU Autoconf 2.62,
  with options \\"`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`\\"

@@ -333,6 +333,9 @@ int sqlite3Fts3PutVarint(char *p, sqlite_int64 v){
 #define GETVARINT_STEP(v, ptr, shift, mask1, mask2, var, ret) \
  v = (v & mask1) | ( (*ptr++) << shift );                    \
  if( (v & mask2)==0 ){ var = v; return ret; }
+#define GETVARINT_INIT(v, ptr, shift, mask1, mask2, var, ret) \
+  v = (*ptr++);                                               \
+  if( (v & mask2)==0 ){ var = v; return ret; }

 /* 
 ** Read a 64-bit variable-length integer from memory starting at p[0].
@@ -345,7 +348,7 @@ int sqlite3Fts3GetVarint(const char *p, sqlite_int64 *v){
  u64 b;
  int shift;

-  GETVARINT_STEP(a, p, 0,  0x00,     0x80, *v, 1);
+  GETVARINT_INIT(a, p, 0,  0x00,     0x80, *v, 1);
  GETVARINT_STEP(a, p, 7,  0x7F,     0x4000, *v, 2);
  GETVARINT_STEP(a, p, 14, 0x3FFF,   0x200000, *v, 3);
  GETVARINT_STEP(a, p, 21, 0x1FFFFF, 0x10000000, *v, 4);
@@ -357,7 +360,7 @@ int sqlite3Fts3GetVarint(const char *p, sqlite_int64 *v){
    if( (c & 0x80)==0 ) break;
  }
  *v = b;
-  return p - pStart;
+  return (int)(p - pStart);
 }

 /*
@@ -368,7 +371,7 @@ int sqlite3Fts3GetVarint32(const char *p, int *pi){
  u32 a;

 #ifndef fts3GetVarint32
-  GETVARINT_STEP(a, p, 0,  0x00,     0x80, *pi, 1);
+  GETVARINT_INIT(a, p, 0,  0x00,     0x80, *pi, 1);
 #else
  a = (*p++);
  assert( a & 0x80 );
@@ -402,7 +402,7 @@ target_source:	$(SRC) $(TOP)/tool/vdbe-compress.tcl
 	mkdir tsrc
 	cp -f $(SRC) tsrc
 	rm tsrc/sqlite.h.in tsrc/parse.y
-	tclsh $(TOP)/tool/vdbe-compress.tcl <tsrc/vdbe.c >vdbe.new
+	tclsh $(TOP)/tool/vdbe-compress.tcl $(OPTS) <tsrc/vdbe.c >vdbe.new
 	mv vdbe.new tsrc/vdbe.c
 	touch target_source

@@ -630,6 +630,9 @@ wordcount$(EXE):	$(TOP)/test/wordcount.c sqlite3.c
 	$(TCC) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION -o wordcount$(EXE) \
 		$(TOP)/test/wordcount.c sqlite3.c

+speedtest1$(EXE):	$(TOP)/test/speedtest1.c sqlite3.o
+	$(TCC) -o speedtest1$(EXE) $(TOP)/test/speedtest1.c sqlite3.o $(THREADLIB)
+
 # This target will fail if the SQLite amalgamation contains any exported
 # symbols that do not begin with "sqlite3_". It is run as part of the
 # releasetest.tcl script.
@@ -1,14 +1,14 @@
-C Add\sALWAYS\sand\sNEVER\smacros\sto\scurrently\sunreachable\sbut\simportant\sbranches\sin\nsqlite3ExprCompare().
-D 2013-11-15T20:06:26.444
+C Fix\sthe\sformatting\sof\s%c\sin\sthe\sprintf()\sSQL\sfunction.
+D 2013-12-17T15:58:42.950
 F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
-F Makefile.in 8a07bebafbfda0eb67728f4bd15a36201662d1a1
+F Makefile.in 2ef13430cd359f7b361bb863504e227b25cc7f81
 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
-F Makefile.msc 19243469fcd1073319ea5b7db97609c1cfb3b1c0
+F Makefile.msc 4d4ead6b71d1bf03028fbd61da0ba0ec5e1556e1
 F Makefile.vxworks db21ed42a01d5740e656b16f92cb5d8d5e5dd315
 F README cd04a36fbc7ea56932a4052d7d0b7f09f27c33d6
-F VERSION 52f7e22bfcec71a462e34194b4ae1671380fde59
+F VERSION 8ed548d87d0a27fd7d7620476f9e25f9fa742d73
 F aclocal.m4 a5c22d164aff7ed549d53a90fa56d56955281f50
-F addopcodes.awk 17dc593f791f874d2c23a0f9360850ded0286531
+F addopcodes.awk 87ca612393d0f439550634bd2c156ea9ff6195ae
 F art/sqlite370.eps aa97a671332b432a54e1d74ff5e8775be34200c2
 F art/sqlite370.ico af56c1d00fee7cd4753e8631ed60703ed0fc6e90
 F art/sqlite370.jpg d512473dae7e378a67e28ff96a34da7cb331def2
@@ -38,7 +38,7 @@ F autoconf/tea/win/rules.vc c511f222b80064096b705dbeb97060ee1d6b6d63
 F config.guess 226d9a188c6196f3033ffc651cbc9dcee1a42977
 F config.h.in 0921066a13130082764ab4ab6456f7b5bebe56de
 F config.sub 9ebe4c3b3dab6431ece34f16828b594fb420da55
-F configure f97b17cd80fa428e5df4e70a36ed5b4ed21100c2 x
+F configure 1673bc402f8fc95015f72c279adc5a9a668ee237 x
 F configure.ac 4cf9f60785143fa141b10962ccc885d973792e9a
 F contrib/sqlitecon.tcl 210a913ad63f9f991070821e599d600bd913e0ad
 F doc/lemon.html 334dbf6621b8fb8790297ec1abf3cfa4621709d1
@@ -78,7 +78,7 @@ F ext/fts3/README.content fdc666a70d5257a64fee209f97cf89e0e6e32b51
 F ext/fts3/README.syntax a19711dc5458c20734b8e485e75fb1981ec2427a
 F ext/fts3/README.tokenizers e0a8b81383ea60d0334d274fadf305ea14a8c314
 F ext/fts3/README.txt 8c18f41574404623b76917b9da66fcb0ab38328d
-F ext/fts3/fts3.c dceaa5079833caa2e7945433e1eb93bb22f623a3
+F ext/fts3/fts3.c 1e667eacb3fe4b4ad6f863920da4286f071f6e07
 F ext/fts3/fts3.h 3a10a0af180d502cecc50df77b1b22df142817fe
 F ext/fts3/fts3Int.h eb5f8029589f3d8f1dc7fd50c773326a640388b1
 F ext/fts3/fts3_aux.c 5c211e17a64885faeb16b9ba7772f9d5445c2365
@@ -142,12 +142,12 @@ F ext/rtree/viewrtree.tcl eea6224b3553599ae665b239bd827e182b466024
 F install-sh 9d4de14ab9fb0facae2f48780b874848cbf2f895 x
 F ltmain.sh 3ff0879076df340d2e23ae905484d8c15d5fdea8
 F magic.txt f439556c5ce01ced70987e5ee86549a45165d9ff
-F main.mk f57b51e64f50e9924b3f14df3c2e8b66893a8ce5
+F main.mk 9f091ea7920f8b15e48c7b6e5b6fb0182577ab2e
 F mkdll.sh 7d09b23c05d56532e9d44a50868eb4b12ff4f74a
 F mkextu.sh 416f9b7089d80e5590a29692c9d9280a10dbad9f
 F mkextw.sh d2a981497b404d6498f5ff3e3b1f3816bdfcb338
 F mkopcodec.awk c2ff431854d702cdd2d779c9c0d1f58fa16fa4ea
-F mkopcodeh.awk 987ee588ff3bb4043bed2185c1ee2bdc39b1e526
+F mkopcodeh.awk c6b3fa301db6ef7ac916b14c60868aeaec1337b5
 F mkso.sh fd21c06b063bb16a5d25deea1752c2da6ac3ed83
 F mptest/config01.test 3c6adcbc50b991866855f1977ff172eb6d901271
 F mptest/config02.test 4415dfe36c48785f751e16e32c20b077c28ae504
@@ -163,38 +163,38 @@ F src/alter.c 2af0330bb1b601af7a7789bf7229675fd772a083
 F src/analyze.c 581d5c18ce89c6f45d4dca65914d0de5b4dad41f
 F src/attach.c 0a17c9364895316ca4f52d06a97a72c0af1ae8b3
 F src/auth.c 523da7fb4979469955d822ff9298352d6b31de34
-F src/backup.c 1809a7caa2504233bdddd12f5018422421789537
+F src/backup.c a729e63cf5cd1829507cb7b8e89f99b95141bb53
 F src/bitvec.c 19a4ba637bd85f8f63fc8c9bae5ade9fb05ec1cb
 F src/btmutex.c 976f45a12e37293e32cae0281b15a21d48a8aaa7
-F src/btree.c 260dedc13119e6fb7930380bd3d294b98362bf5a
-F src/btree.h bfe0e8c5759b4ec77b0d18390064a6ef3cdffaaf
+F src/btree.c 11e29ef8cf16a42925fde036bcffbeffd9cc82df
+F src/btree.h a61ddebc78c66795a2b93181321a116746302cc9
 F src/btreeInt.h f038e818bfadf75afbd09819ed93c26a333d39e0
-F src/build.c 07054d45319953e54a89d726e589a423e9c1c590
-F src/callback.c f99a8957ba2adf369645fac0db09ad8adcf1caa2
+F src/build.c 47ef8209e56d840d2b35b8a243c6ee567ad52bda
+F src/callback.c 174e3c8656bc29f91d710ab61550d16eea34be98
 F src/complete.c dc1d136c0feee03c2f7550bafc0d29075e36deac
-F src/ctime.c ea4b7f3623a0fcb1146e7f245d7410033e86859c
+F src/ctime.c 77779efbe78dd678d84bfb4fc2e87b6b6ad8dccd
 F src/date.c 593c744b2623971e45affd0bde347631bdfa4625
-F src/delete.c ddb92f44595366c4817e576b5f11cad5a915c3ef
-F src/expr.c 1a295d8b0a2ba08919ad9300ebf7b67988ff4030
+F src/delete.c b36db1f79ee50eaca979660c9dd36437f5410b93
+F src/expr.c 31a2b65339f6c3795d4cfa5e99798cd72f9fdfdf
 F src/fault.c 160a0c015b6c2629d3899ed2daf63d75754a32bb
-F src/fkey.c 78364daed38e26269c53ddb94c515bceac1063c6
-F src/func.c 96caa9dfd1febf9a4b720de4c43ccfb392a52b73
-F src/global.c 5caf4deab621abb45b4c607aad1bd21c20aac759
+F src/fkey.c 2ab0f5384b70594468ef3ac5c7ed8ca24bfd17d5
+F src/func.c 6325ac2ec10833ccf4d5c36d323709221d37ea19
+F src/global.c 1d7bb7ea8254ae6a68ed9bfaf65fcb3d1690b486
 F src/hash.c ac3470bbf1ca4ae4e306a8ecb0fdf1731810ffe4
 F src/hash.h 8890a25af81fb85a9ad7790d32eedab4b994da22
 F src/hwtime.h d32741c8f4df852c7d959236615444e2b1063b08
-F src/insert.c 63003c569c55793c3278ad7634bdd0c49d755a47
+F src/insert.c 3cf8012325857d162f74389420b14be7976a538d
 F src/journal.c b4124532212b6952f42eb2c12fa3c25701d8ba8d
 F src/legacy.c 0df0b1550b9cc1f58229644735e317ac89131f12
 F src/lempar.c cdf0a000315332fc9b50b62f3b5e22e080a0952b
 F src/loadext.c 867c7b330b740c6c917af9956b13b81d0a048303
-F src/main.c 32bf1e6e164a6fa0ddf1bf2616c6eafbefd6e9b0
-F src/malloc.c 543a8eb5508eaf4cadf55a9b503379eba2088128
+F src/main.c 45e08d8ca4808625c4512a14898e9c61553e3d2a
+F src/malloc.c 0203ebce9152c6a0e5de520140b8ba65187350be
 F src/mem0.c 6a55ebe57c46ca1a7d98da93aaa07f99f1059645
 F src/mem1.c c0c990fcaddff810ea277b4fb5d9138603dd5d4b
 F src/mem2.c dce31758da87ec2cfa52ba4c5df1aed6e07d8e8f
 F src/mem3.c 61c9d47b792908c532ca3a62b999cf21795c6534
-F src/mem5.c 0025308a93838022bd5696cf9627ff4e40b19918
+F src/mem5.c 19d9271cb936742707b6118ed44d779657c7c511
 F src/memjournal.c 0683aac6cab6ec2b5374c0db37c0deb2436a3785
 F src/mutex.c d3b66a569368015e0fcb1ac15f81c119f504d3bc
 F src/mutex.h 5bc526e19dccc412b7ff04642f6fdad3fdfdabea
@@ -205,36 +205,36 @@ F src/notify.c 976dd0f6171d4588e89e874fcc765e92914b6d30
 F src/os.c b4ad71336fd96f97776f75587cd9e8218288f5be
 F src/os.h 4a46270a64e9193af4a0aaa3bc2c66dc07c29b3f
 F src/os_common.h 92815ed65f805560b66166e3583470ff94478f04
-F src/os_unix.c 143624d9eabb3b997c59cf594e0d06c56edd43e9
-F src/os_win.c ef091b347d682cb24fc575ac9a6290341af62e2b
-F src/pager.c 2aa4444ffe86e9282d03bc349a4a5e49bd77c0e8
-F src/pager.h f094af9f6ececfaa8a1e93876905a4f34233fb0c
-F src/parse.y 073a8294e1826f1b1656e84806b77e4199f4bb57
+F src/os_unix.c 60a7b3b23e6fcf83a50d1e320b280b551724e11f
+F src/os_win.c 16eac0961603182ffc10c02b39fe830126538e07
+F src/pager.c efa923693e958696eee69b205a20bfbc402c8480
+F src/pager.h ffd5607f7b3e4590b415b007a4382f693334d428
+F src/parse.y acee1a9958539e21263362b194594c5255ad2fca
 F src/pcache.c f8043b433a57aba85384a531e3937a804432a346
 F src/pcache.h a5e4f5d9f5d592051d91212c5949517971ae6222
-F src/pcache1.c a467393909a4ed7ca9de066d85ba5c5b04a5be63
-F src/pragma.c c8d70c47ec8d8ba93575d92e34d30ddff8e9b517
+F src/pcache1.c 57fee9a9a617218f5037afbbe49b09da65bde56b
+F src/pragma.c 5ab7279d132143feb77f773688a24ab05da75fd7
 F src/prepare.c 359d1a1e9c9bd4488e4dd3a1aaaf2d2ebb9bb768
-F src/printf.c da9119eb31a187a4b99f60aa4a225141c0ebb74b
+F src/printf.c 85d07756e45d7496d19439dcae3e6e9e0090f269
 F src/random.c 0b2dbc37fdfbfa6bd455b091dfcef5bdb32dba68
-F src/resolve.c 6fcceeb653a0020b14491975d567c989e794d408
+F src/resolve.c 7eda9097b29fcf3d2b42fdc17d1de672134e09b6
 F src/rowset.c 64655f1a627c9c212d9ab497899e7424a34222e0
-F src/select.c 253cb683e4a05b0b56b0f9c816f3c4a4e5575ebb
-F src/shell.c b98e74123d6c2e20369607c1da2d23c71db633d9
-F src/sqlite.h.in 4dedcab5b32358bf7a596badffe7363be1f1a82d
+F src/select.c d41381d80a22d3a83352aeca274cccf264ac277a
+F src/shell.c 18924f6ccfa70da98bf9e388bab512c0fd1e792e
+F src/sqlite.h.in 4ef56464aeaa3785a2c5ca37fb3a0fb229d68b2e
 F src/sqlite3.rc 11094cc6a157a028b301a9f06b3d03089ea37c3e
 F src/sqlite3ext.h 886f5a34de171002ad46fae8c36a7d8051c190fc
-F src/sqliteInt.h e16eb6e62146234c05f34a4403a75cf242777ad7
+F src/sqliteInt.h b7e9da87740488671cfe4c70038a8eef3a1d317e
 F src/sqliteLimit.h 164b0e6749d31e0daa1a4589a169d31c0dec7b3d
 F src/status.c 7ac05a5c7017d0b9f0b4bcd701228b784f987158
 F src/table.c 2cd62736f845d82200acfa1287e33feb3c15d62e
-F src/tclsqlite.c 3b5f3716e320480659239abe887164521c575d83
-F src/test1.c 5757066e503a8ed51313cb3a5d9bcdcced2991a9
+F src/tclsqlite.c 651b10698c87bbc3ae5772e2491e3444c5bbf153
+F src/test1.c 633e5e6a116acf4473b9289240bcceb5320a9d93
 F src/test2.c 7355101c085304b90024f2261e056cdff13c6c35
 F src/test3.c 1c0e5d6f080b8e33c1ce8b3078e7013fdbcd560c
 F src/test4.c 9b32d22f5f150abe23c1830e2057c4037c45b3df
 F src/test5.c a6d1ac55ac054d0b2b8f37b5e655b6c92645a013
-F src/test6.c 4f958b71334695e65746d357dac77709732b28db
+F src/test6.c 41cacf3b0dd180823919bf9e1fbab287c9266723
 F src/test7.c 72b732baa5642f795655ba1126ea032af46ecfd2
 F src/test8.c c7aab1d9fbbf54fc33d43b73aa24aa55f9eaf534
 F src/test9.c bea1e8cf52aa93695487badedd6e1886c321ea60
@@ -242,7 +242,7 @@ F src/test_async.c 21e11293a2f72080eda70e1124e9102044531cd8
 F src/test_autoext.c dea8a01a7153b9adc97bd26161e4226329546e12
 F src/test_backup.c 3875e899222b651e18b662f86e0e50daa946344e
 F src/test_btree.c 5b89601dcb42a33ba8b820a6b763cc9cb48bac16
-F src/test_config.c e825cd6a4a8f498be246fc5934fe5fd702b9441f
+F src/test_config.c 10d0e00dd6315879a6d9fac20bd063c7bbbfb8f8
 F src/test_demovfs.c 69b2085076654ebc18014cbc6386f04409c959a9
 F src/test_devsym.c e7498904e72ba7491d142d5c83b476c4e76993bc
 F src/test_fs.c ced436e3d4b8e4681328409b8081051ce614e28f
@@ -253,7 +253,7 @@ F src/test_intarray.c 87847c71c3c36889c0bcc9c4baf9d31881665d61
 F src/test_intarray.h 2ece66438cfd177b78d1bfda7a4180cd3a10844d
 F src/test_journal.c f5c0a05b7b3d5930db769b5ee6c3766dc2221a64
 F src/test_loadext.c df586c27176e3c2cb2e099c78da67bf14379a56e
-F src/test_malloc.c eba4e1c5847cc98e7edc98f62265cd2abafba7a6
+F src/test_malloc.c 1ff5b1243d96124c9a180f3b89424820a1f337f3
 F src/test_multiplex.c 9f304bf04170c91c0318238d512df2da039eb1c8
 F src/test_multiplex.h 110a8c4d356e0aa464ca8730375608a9a0b61ae1
 F src/test_mutex.c 293042d623ebba969160f471a82aa1551626454f
@@ -272,28 +272,28 @@ F src/test_syscall.c 16dbe79fb320fadb5acd7a0a59f49e52ab2d2091
 F src/test_tclvar.c f4dc67d5f780707210d6bb0eb6016a431c04c7fa
 F src/test_thread.c 1e133a40b50e9c035b00174035b846e7eef481cb
 F src/test_vfs.c e72f555ef7a59080f898fcf1a233deb9eb704ea9
-F src/test_vfstrace.c 34b544e80ba7fb77be15395a609c669df2e660a2
+F src/test_vfstrace.c 3a0ab304682fecbceb689e7d9b904211fde11d78
 F src/test_wsd.c 41cadfd9d97fe8e3e4e44f61a4a8ccd6f7ca8fe9
 F src/tokenize.c ec4c1a62b890bf1dbcdb966399e140b904c700a4
 F src/trigger.c d84e1f3669e9a217731a14a9d472b1c7b87c87ba
-F src/update.c 3de7e657b98ac67338d775c114a4068faf732402
+F src/update.c d1c2477dcf14d90999d1935af4efb4806553250b
 F src/utf.c 6fc6c88d50448c469c5c196acf21617a24f90269
-F src/util.c 2fa6c821d28bbdbeec1b2a7b091a281c9ef8f918
+F src/util.c e71f19b272f05c8695cf747b4bac1732685f9e5c
 F src/vacuum.c 3728d74919d4fb1356f9e9a13e27773db60b7179
-F src/vdbe.c 5573893423aec2d64871e8d504fadbcdaad39fed
+F src/vdbe.c 919422843c859a1db08db0c88189912dbf625fc7
 F src/vdbe.h c06f0813f853566457ce9cfb1a4a4bc39a5da644
-F src/vdbeInt.h 62eb680327011f3a4b0336642b0ca9d6ecc6eb91
-F src/vdbeapi.c 93a22a9ba2abe292d5c2cf304d7eb2e894dde0ed
-F src/vdbeaux.c dd0f6ab9dc159911facfc0a7a2164af44779bdda
-F src/vdbeblob.c d883398f7260725147dbf5b40c2b61332aee47f9
-F src/vdbemem.c cc529bbf4f13e4e181bdb446bf6e6962ab030b4b
+F src/vdbeInt.h a7bc268f844d75be48bb7ae16f77b418fd3c641c
+F src/vdbeapi.c ce4e68ea4842cc6081046f533d088dcf01d247ad
+F src/vdbeaux.c a22cbd91b24503b82690cb03324ffec9f4ef63f6
+F src/vdbeblob.c 8cd05a5630e6d5563ad017bf82edaf812b28acde
+F src/vdbemem.c 0e69351b2c6ff7d8b638688c0ae336a26befa6b2
 F src/vdbesort.c 9d83601f9d6243fe70dd0169a2820c5ddfd48147
-F src/vdbetrace.c e7ec40e1999ff3c6414424365d5941178966dcbc
+F src/vdbetrace.c 6f52bc0c51e144b7efdcfb2a8f771167a8816767
 F src/vtab.c 21b932841e51ebd7d075e2d0ad1415dce8d2d5fd
 F src/wal.c 7dc3966ef98b74422267e7e6e46e07ff6c6eb1b4
 F src/wal.h df01efe09c5cb8c8e391ff1715cca294f89668a4
 F src/walker.c e9e593d5bb798c3e67fc3893dfe7055c9e7d8d74
-F src/where.c c7d50e26bad54218d8fa109d3127b9769b9474ab
+F src/where.c b8f3aab1e5843012895b89a183dcdd6cef0708db
 F src/whereInt.h 96a75c61f1d2b9d4a8e4bb17d89deb0cf7cba358
 F test/8_3_names.test ebbb5cd36741350040fd28b432ceadf495be25b2
 F test/aggerror.test a867e273ef9e3d7919f03ef4f0e8c0d2767944f2
@@ -313,7 +313,7 @@ F test/analyze5.test 765c4e284aa69ca172772aa940946f55629bc8c4
 F test/analyze6.test d31defa011a561b938b4608d3538c1b4e0b5e92c
 F test/analyze7.test bb1409afc9e8629e414387ef048b8e0e3e0bdc4f
 F test/analyze8.test 093d15c1c888eed5034304a98c992f7360130b88
-F test/analyze9.test 1b9b7e9a096d1536f03d9ad7b72f638ef5669347
+F test/analyze9.test 339e87723cd4dc158dc5e9095acd8df9e87faf79
 F test/analyzeA.test 1a5c40079894847976d983ca39c707aaa44b6944
 F test/analyzeB.test 8bf35ee0a548aea831bf56762cb8e7fdb1db083d
 F test/async.test 1d0e056ba1bb9729283a0f22718d3a25e82c277b
@@ -321,7 +321,7 @@ F test/async2.test c0a9bd20816d7d6a2ceca7b8c03d3d69c28ffb8b
 F test/async3.test d73a062002376d7edc1fe3edff493edbec1fc2f7
 F test/async4.test 1787e3952128aa10238bf39945126de7ca23685a
 F test/async5.test 383ab533fdb9f7ad228cc99ee66e1acb34cc0dc0
-F test/atof1.test 9bf1d25180a2e05fc12ce3940cc8003033642f68
+F test/atof1.test 08a61df9365c341f334a65f4348897312d8f3db7
 F test/attach.test 0d112b7713611fdf0340260192749737135fda5f
 F test/attach2.test 0ec5defa340363de6cd50fd595046465e9aaba2d
 F test/attach3.test d89ccfe4fe6e2b5e368d480fcdfe4b496c54cf4e
@@ -330,7 +330,7 @@ F test/attachmalloc.test 3a4bfca9545bfe906a8d2e622de10fbac5b711b0
 F test/auth.test 9bea29041871807d9f289ee679d05d3ed103642f
 F test/auth2.test c3b415b76c033bedb81292118fb7c01f5f10cbcd
 F test/auth3.test a4755e6a2a2fea547ffe63c874eb569e60a28eb5
-F test/autoinc.test bd30d372d00045252f6c2e41b5f41455e1975acf
+F test/autoinc.test c58912526998a39e11f66b533e23cfabea7f25b7
 F test/autoindex1.test d4dfe14001dfcb74cfbd7107f45a79fc1ab6183e
 F test/autovacuum.test 941892505d2c0f410a0cb5970dfa1c7c4e5f6e74
 F test/autovacuum_ioerr2.test 8a367b224183ad801e0e24dcb7d1501f45f244b4
@@ -364,7 +364,7 @@ F test/btreefault.test c2bcb542685eea44621275cfedbd8a13f65201e3
 F test/busy.test 76b4887f8b9160ba903c1ac22e8ff406ad6ae2f0
 F test/cache.test 13bc046b26210471ca6f2889aceb1ea52dc717de
 F test/capi2.test 011c16da245fdc0106a2785035de6b242c05e738
-F test/capi3.test 56ab450125ead38846cbae7e5b6a216686c3cffa
+F test/capi3.test f5eab498a0927d498e6d75c14567addb995ceccb
 F test/capi3b.test efb2b9cfd127efa84433cd7a2d72ce0454ae0dc4
 F test/capi3c.test 93d24621c9ff84da9da060f30431e0453db1cdb0
 F test/capi3d.test 6d0fc0a86d73f42dd19a7d8b7761ab9bc02277d0
@@ -387,25 +387,25 @@ F test/collateA.test b8218ab90d1fa5c59dcf156efabb1b2599c580d6
 F test/colmeta.test 087c42997754b8c648819832241daf724f813322
 F test/colname.test 08948a4809d22817e0e5de89c7c0a8bd90cb551b
 F test/conflict.test 841bcf7cabbfca39c577eb8411ea8601843b46a8
-F test/conflict2.test 3ed0b6ec3c2cb8acebbc89677ea0e58c01aaa1ff
+F test/conflict2.test 0d3af4fb534fa1bd020c79960bb56e4d52655f09
 F test/conflict3.test dec0634c0f31dec9a4b01c63063e939f0cd21b6b
 F test/contrib01.test 2a1cbc0f2f48955d7d073f725765da6fbceda6b4
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-F test/corrupt2.test 9c0ab4becd50e9050bc1ebb8675456a4e5587bf0
-F test/corrupt3.test 889d7cdb811800303aa722d7813fe8a4299cf726
-F test/corrupt4.test b963f9e01e0f92d15c76fb0747876fd4b96dc30a
-F test/corrupt5.test c23da7bfb20917cc7fdbb13ee25c7cc4e9fffeff
-F test/corrupt6.test 4e4161aef1f30b9f34582bb4142334b7f47eacae
-F test/corrupt7.test a90caf89c7d7cb7893ea4d92529bd0c129317ee4
-F test/corrupt8.test 48eb37ffb9a03bceada62219e2bd4c92f4b0cb75
-F test/corrupt9.test 959179e68dc0b7b99f424cf3e0381c86dcdd0112
-F test/corruptA.test fafa652aa585753be4f6b62ff0bb250266eaf7ce
-F test/corruptB.test 20d4a20cbed23958888c3e8995b424a47223d647
-F test/corruptC.test 62a767fe64acb1975f58cc6171192839c783edbb
-F test/corruptD.test 3b09903a2e2fe07ecafe775fea94177f8a4bb34f
-F test/corruptE.test d3a3d7e864a95978195741744dda4abfd8286018
-F test/corruptF.test 1c7b6f77cf3f237fb7fbb5b61d6c921fd4c7b993
-F test/corruptG.test c67fd860e9e3943bc90b856a3049c9a28827167e
+F test/corrupt.test 141c39ea650c1365e85a49e402fa05cb9617fb97
+F test/corrupt2.test f2064e0bf934124cc38868fd8badb8f0dd67b552
+F test/corrupt3.test 4b548d0bbe2933bc81d3f54099a05fc4d28aff18
+F test/corrupt4.test b99652079d542b21f4965f6248703b983e40fe80
+F test/corrupt5.test 8ead52af76006f3286e9396cb41898018ccea107
+F test/corrupt6.test 269548d19427ac554c830763b1c5ea54a0252f80
+F test/corrupt7.test 22cc644c2e76c9804bc844121267aa6f8f7c0ded
+F test/corrupt8.test 2399dfe40d2c0c63af86706e30f3e6302a8d0516
+F test/corrupt9.test 730a3db08d4ab9aa43392ea30d9c2b4879cbff85
+F test/corruptA.test 53e56dafd180addcdadb402244b8cb9771d2ba26
+F test/corruptB.test 73a8d6c0b9833697ecf16b63e3c5c05c945b5dec
+F test/corruptC.test 02405cf7ed0c1e989060e1aab6d02ffbc3906fbb
+F test/corruptD.test b3c205fac7952b1de645ce44bb02335cd9e3e040
+F test/corruptE.test 193b4ca4e927e77c1d5f4f56203ddc998432a7ee
+F test/corruptF.test be9fde98e4c93648f1ba52b74e5318edc8f59fe4
+F test/corruptG.test c150f156dace653c00a121ad0f5772a0568c41ba
 F test/count.test 42a251178e32f617eda33f76236a7f79825a50b5
 F test/coveridxscan.test cdb47d01acc4a634a34fd25abe85189e0d0f1e62
 F test/crash.test fb9dc4a02dcba30d4aa5c2c226f98b220b2b959f
@@ -433,11 +433,11 @@ F test/descidx3.test 09ddbe3f5295f482d2f8b687cf6db8bad7acd9a2
 F test/diskfull.test 106391384780753ea6896b7b4f005d10e9866b6e
 F test/distinct.test 44028aaf161a5e80a2f229622b3a174d3b352810
 F test/distinctagg.test 1a6ef9c87a58669438fc771450d7a72577417376
-F test/e_createtable.test 3b453432cd14a12732ee9467597d2274ca37ce36
+F test/e_createtable.test ee95d48664503d40f6cc9ef4a7d03216188e2ada
 F test/e_delete.test d5186e2f5478b659f16a2c8b66c09892823e542a
 F test/e_droptrigger.test 3cd080807622c13e5bbb61fc9a57bd7754da2412
 F test/e_dropview.test 0c9f7f60989164a70a67a9d9c26d1083bc808306
-F test/e_expr.test d5cdda0e4ffb17760858ed4c7c4ece07efc40f71
+F test/e_expr.test 5c71d183fbf519a4769fd2e2124afdc70b5b1f42
 F test/e_fkey.test d83a04478bb9c02d2c513518548a69f818869f41
 F test/e_fts3.test 5c02288842e4f941896fd44afdef564dd5fc1459
 F test/e_insert.test 1e44f84d2abe44d66e4fbf198be4b20e3cc724a0
@@ -470,7 +470,7 @@ F test/fkey4.test 86446017011273aad8f9a99c1a65019e7bd9ca9d
 F test/fkey5.test 8a1fde4e7721ae00b05b3178888833726ca2df8d
 F test/fkey6.test abb59f866c1b44926fd02d1fdd217d831fe04f48
 F test/fkey7.test e31d0e71a41c1d29349a16448d6c420e2c53a8fc
-F test/fkey_malloc.test bb74c9cb8f8fceed03b58f8a7ef2df98520bbd51
+F test/fkey_malloc.test 594a7ea1fbab553c036c70813cd8bd9407d63749
 F test/format4.test 1f0cac8ff3895e9359ed87e41aaabee982a812eb
 F test/fts-9fd058691.test 78b887e30ae6816df0e1fed6259de4b5a64ad33c
 F test/fts1a.test 46090311f85da51bb33bd5ce84f7948359c6d8d7
@@ -559,7 +559,7 @@ F test/fts3snippet.test d524af6bcef4714e059ef559113dbdc924cd33d1
 F test/fts3sort.test ed34c716a11cc2009a35210e84ad5f9c102362ca
 F test/fts3tok1.test b10d0a12a0ab5f905cea1200b745de233f37443f
 F test/fts3tok_err.test 52273cd193b9036282f7bacb43da78c6be87418d
-F test/fts3varint.test 23e79002ebebd6fbb1235504f7acb087b0fea741
+F test/fts3varint.test 752c08ed5d32c5d7dc211b056f4ed68a76b7e36e
 F test/fts4aa.test 0c3152322c7f0b548cc942ad763eaba0da87ccca
 F test/fts4check.test 66fa274cab2b615f2fb338b257713aba8fad88a8
 F test/fts4content.test 2e7252557d6d24afa101d9ba1de710d6140e6d06
@@ -573,20 +573,21 @@ F test/fts4merge4.test c19c85ca1faa7b6d536832b49c12e1867235f584
 F test/fts4noti.test aed33ba44808852dcb24bf70fa132e7bf530f057
 F test/fts4unicode.test e28ba1a14181e709dcdf47455f207adf14c7cfe0
 F test/full.test 6b3c8fb43c6beab6b95438c1675374b95fab245d
-F test/func.test c7e80a44eebac8604397eb2ad83d0d5d9d541237
+F test/func.test 00667bbeac044d007f6f021af1b9f6150f0c7ff8
 F test/func2.test 772d66227e4e6684b86053302e2d74a2500e1e0f
 F test/func3.test dbccee9133cfef1473c59ec07b5f0262b9d72f9a
 F test/func4.test 6beacdfcb0e18c358e6c2dcacf1b65d1fa80955f
+F test/func5.test cdd224400bc3e48d891827cc913a57051a426fa4
 F test/fuzz-oss1.test 4912e528ec9cf2f42134456933659d371c9e0d74
 F test/fuzz.test 77fd50afc12847af50fcf1941679d90adebadde6
 F test/fuzz2.test 207d0f9d06db3eaf47a6b7bfc835b8e2fc397167
-F test/fuzz3.test aec64345184d1662bd30e6a17851ff659d596dc5
+F test/fuzz3.test efd384b896c647b61a2c1848ba70d42aad60a7b3
 F test/fuzz_common.tcl a87dfbb88c2a6b08a38e9a070dabd129e617b45b
 F test/fuzz_malloc.test 328f70aaca63adf29b4c6f06505ed0cf57ca7c26
 F test/fuzzer1.test d4c52aaf3ef923da293a2653cfab33d02f718a36
 F test/fuzzerfault.test 8792cd77fd5bce765b05d0c8e01b9edcf8af8536
 F test/genesis.tcl 1e2e2e8e5cc4058549a154ff1892fe5c9de19f98
-F test/hook.test 45cb22b940c3cc0af616ba7430f666e245711a48
+F test/hook.test 162d7cef7a2d2b04839fe14402934e6a1b79442f
 F test/icu.test 70df4faca133254c042d02ae342c0a141f2663f4
 F test/in.test 047c4671328e9032ab95666a67021adbbd36e98e
 F test/in2.test 5d4c61d17493c832f7d2d32bef785119e87bde75
@@ -623,7 +624,7 @@ F test/intarray.test 066b7d7ac38d25bf96f87f1b017bfc687551cdd4
 F test/interrupt.test dfe9a67a94b0b2d8f70545ba1a6cca10780d71cc
 F test/intpkey.test 7506090fc08e028712a8bf47e5f54111947e3844
 F test/io.test 3a7abcef18727cc0f2399e04b0e8903eccae50f8
-F test/ioerr.test 40bb2cfcab63fb6aa7424cd97812a84bc16b5fb8
+F test/ioerr.test 2a24bd6ed5a8b062e64bfe1f6cf94fb25e92210d
 F test/ioerr2.test 9d71166f8466eda510f1af6137bdabaa82b5408d
 F test/ioerr3.test d3cec5e1a11ad6d27527d0d38573fbff14c71bdd
 F test/ioerr4.test f130fe9e71008577b342b8874d52984bd04ede2c
@@ -642,7 +643,7 @@ F test/jrnlmode.test 9ee3a78f53d52cca737db69293d15dc41c0cbd36
 F test/jrnlmode2.test 81610545a4e6ed239ea8fa661891893385e23a1d
 F test/jrnlmode3.test 556b447a05be0e0963f4311e95ab1632b11c9eaa
 F test/keyword1.test a2400977a2e4fde43bf33754c2929fda34dbca05
-F test/lastinsert.test 474d519c68cb79d07ecae56a763aa7f322c72f51
+F test/lastinsert.test 42e948fd6442f07d60acbd15d33fb86473e0ef63
 F test/laststmtchanges.test ae613f53819206b3222771828d024154d51db200
 F test/like.test 935fb4f608e3ea126891496a6e99b9468372bf5c
 F test/like2.test 3b2ee13149ba4a8a60b59756f4e5d345573852da
@@ -697,7 +698,7 @@ F test/misc3.test cf3dda47d5dda3e53fc5804a100d3c82be736c9d
 F test/misc4.test 9c078510fbfff05a9869a0b6d8b86a623ad2c4f6
 F test/misc5.test 528468b26d03303b1f047146e5eefc941b9069f5
 F test/misc6.test 953cc693924d88e6117aeba16f46f0bf5abede91
-F test/misc7.test 50c02c35ef7924c246eb3d8d71dfbf90ba352f8f
+F test/misc7.test 1265eb98c2e22a446a13fdef754118b272716684
 F test/misuse.test ba4fb5d1a6101d1c171ea38b3c613d0661c83054
 F test/mmap1.test 93d167b328255cbe6679fe1e1a23be1b1197d07b
 F test/mmap2.test 9d6dd9ddb4ad2379f29cc78f38ce1e63ed418022
@@ -725,6 +726,7 @@ F test/oserror.test 50417780d0e0d7cd23cf12a8277bb44024765df3
 F test/pager1.test 1acbdb14c5952a72dd43129cabdbf69aaa3ed1fa
 F test/pager2.test 67b8f40ae98112bcdba1f2b2d03ea83266418c71
 F test/pager3.test 3856d9c80839be0668efee1b74811b1b7f7fc95f
+F test/pager4.test b40ecb4cc7dff957ee7916e41ab21d1ed702a642
 F test/pagerfault.test 7285379906ab2f1108b8e82bbdf2d386cc8ff3ff
 F test/pagerfault2.test caf4c7facb914fd3b03a17b31ae2b180c8d6ca1f
 F test/pagerfault3.test 1003fcda009bf48a8e22a516e193b6ef0dd1bbd8
@@ -737,6 +739,7 @@ F test/permutations.test af3278cbea3a19e025d5169be8193ff48dc3f862
 F test/pragma.test e882183ecd21d064cec5c7aaea174fbd36293429
 F test/pragma2.test aea7b3d82c76034a2df2b38a13745172ddc0bc13
 F test/printf.test ec9870c4dce8686a37818e0bf1aba6e6a1863552
+F test/printf2.test 2f0978059768bb039d3ee09466bdcd06fc7a6a86
 F test/progress.test a282973d1d17f08071bc58a77d6b80f2a81c354d
 F test/ptrchng.test ef1aa72d6cf35a2bbd0869a649b744e9d84977fc
 F test/queryonly.test 5f653159e0f552f0552d43259890c1089391dcca
@@ -755,8 +758,9 @@ F test/releasetest.tcl 06d289d8255794073a58d2850742f627924545ce
 F test/resolver01.test 33abf37ff8335e6bf98f2b45a0af3e06996ccd9a
 F test/rollback.test e9504a009a202c3ed711da2e6879ff60c5a4669c
 F test/rowhash.test 0bc1d31415e4575d10cacf31e1a66b5cc0f8be81
-F test/rowid.test f777404492adb0e00868fd706a3721328fd3af48
+F test/rowid.test b78b30afb9537a73788ca1233a23a32190a3bb1f
 F test/rtree.test 0c8d9dd458d6824e59683c19ab2ffa9ef946f798
+F test/run-wordcount.sh 891e89c4c2d16e629cd45951d4ed899ad12afc09
 F test/savepoint.test 6c53f76dffe5df0dd87646efe3e7aa159c36e07b
 F test/savepoint2.test 9b8543940572a2f01a18298c3135ad0c9f4f67d7
 F test/savepoint3.test e328085853b14898d78ceea00dfe7db18bb6a9ec
@@ -801,11 +805,12 @@ F test/shell1.test e7c0b9ebda25d5e78f0a3ea0dc4e31bb6d8098c0
 F test/shell2.test e1d3790f064e50b2f973502f45750012667486df
 F test/shell3.test 5e8545ec72c4413a0e8d4c6be56496e3c257ca29
 F test/shell4.test aa4eef8118b412d1a01477a53426ece169ea86a9
-F test/shell5.test 46c8c18d62732415c4fe084816c13d559831705e
+F test/shell5.test cee83b4385f842fec1f2a0bec9ea811f35386edf
 F test/shortread1.test bb591ef20f0fd9ed26d0d12e80eee6d7ac8897a3
 F test/shrink.test 8c70f62b6e8eb4d54533de6d65bd06b1b9a17868
 F test/sidedelete.test f0ad71abe6233e3b153100f3b8d679b19a488329
 F test/skipscan1.test 6bb4891c2cc5efd5690a9da9e7508e53d4a68e10
+F test/skipscan2.test 5a4db0799c338ddbacb154aaa5589c0254b36a8d
 F test/soak.test 0b5b6375c9f4110c828070b826b3b4b0bb65cd5f
 F test/softheap1.test 40562fe6cac6d9827b7b42b86d45aedf12c15e24
 F test/sort.test 0e4456e729e5a92a625907c63dcdedfbe72c5dc5
@@ -817,6 +822,7 @@ F test/speed3.test d32043614c08c53eafdc80f33191d5bd9b920523
 F test/speed4.test abc0ad3399dcf9703abed2fff8705e4f8e416715
 F test/speed4p.explain 6b5f104ebeb34a038b2f714150f51d01143e59aa
 F test/speed4p.test 0e51908951677de5a969b723e03a27a1c45db38b
+F test/speedtest1.c bb3a4cc62b6cf29f5bc72c85d2bee5991e207be7
 F test/spellfix.test 8c40b169b104086d8795781f670ba3c786d6d8be
 F test/sqllimits1.test b1aae27cc98eceb845e7f7adf918561256e31298
 F test/stat.test c8eccfe8fcd3f3cfc864ce22d5b9e803a3c69940
@@ -835,8 +841,8 @@ F test/tableopts.test dba698ba97251017b7c80d738c198d39ab747930
 F test/tclsqlite.test 37a61c2da7e3bfe3b8c1a2867199f6b860df5d43
 F test/tempdb.test 19d0f66e2e3eeffd68661a11c83ba5e6ace9128c
 F test/temptable.test d2c9b87a54147161bcd1822e30c1d1cd891e5b30
-F test/temptrigger.test 0a48d94222d50e6e50d72ac103606c4f8e7cbb81
-F test/tester.tcl bce6b929932498383ce92431da6a96432c690bf7
+F test/temptrigger.test 8ec228b0db5d7ebc4ee9b458fc28cb9e7873f5e1
+F test/tester.tcl 08e9f317afe60d398fa900993503ecaef3295bad
 F test/thread001.test 9f22fd3525a307ff42a326b6bc7b0465be1745a5
 F test/thread002.test e630504f8a06c00bf8bbe68528774dd96aeb2e58
 F test/thread003.test ee4c9efc3b86a6a2767516a37bd64251272560a7
@@ -985,7 +991,7 @@ F test/tpch01.test 8f4ac52f62f3e9f6bce0889105aecdf0275e331b
 F test/trace.test 4b36a41a3e9c7842151af6da5998f5080cdad9e5
 F test/trace2.test e7a988fdd982cdec62f1f1f34b0360e6476d01a0
 F test/trans.test 6e1b4c6a42dba31bd65f8fa5e61a2708e08ddde6
-F test/trans2.test d5337e61de45e66b1fcbf9db833fa8c82e624b22
+F test/trans2.test 62bd045bfc7a1c14c5ba83ba64d21ade31583f76
 F test/trans3.test 373ac5183cc56be69f48ae44090e7f672939f732
 F test/transitive1.test 03f532954f46cdf5608f7766bff0b0c52bf2a7cd
 F test/trigger1.test dc47573ac79ffe0ee3eecaa517d70d8dacbccd03
@@ -1081,16 +1087,18 @@ F test/whereF.test 5b2ba0dbe8074aa13e416b37c753991f0a2492d7
 F test/whereG.test 2a3d5181decc801b36600fa1c40b0dad2ccc267f
 F test/wherelimit.test 5e9fd41e79bb2b2d588ed999d641d9c965619b31
 F test/wild001.test bca33f499866f04c24510d74baf1e578d4e44b1c
+F test/win32heap.test ea19770974795cff26e11575e12d422dbd16893c
 F test/win32lock.test 7a6bd73a5dcdee39b5bb93e92395e1773a194361
-F test/win32longpath.test e2aafc07e6990fe86c69be22a3d1a0e210cd329b
+F test/win32longpath.test 169c75a3b2e43481f4a62122510210c67b08f26d
 F test/without_rowid1.test aaa26da19d543cd8d3d2d0e686dfa255556c15c8
 F test/without_rowid2.test af260339f79d13cb220288b67cd287fbcf81ad99
 F test/without_rowid3.test eac3d5c8a1924725b58503a368f2cbd24fd6c8a0
 F test/without_rowid4.test 4e08bcbaee0399f35d58b5581881e7a6243d458a
-F test/wordcount.c b8872ec44e8085bb671048a49cb696bed1100fe3
+F test/without_rowid5.test b4a639a367f04d382d20e8f44fc1be4f2d57d107
+F test/wordcount.c 9915e06cb33d8ca8109b8700791afe80d305afda
 F test/zeroblob.test caaecfb4f908f7bc086ed238668049f96774d688
 F test/zerodamage.test 209d7ed441f44cc5299e4ebffbef06fd5aabfefd
-F tool/build-all-msvc.bat 1bac6adc3fdb4d9204f21d17b14be25778370e48 x
+F tool/build-all-msvc.bat e0917e787df675b020d250d60a00de8abaa4e30a x
 F tool/build-shell.sh 950f47c6174f1eea171319438b93ba67ff5bf367
 F tool/checkSpacing.c 810e51703529a204fc4e1eb060e9ab663e3c06d2
 F tool/diffdb.c 7524b1b5df217c20cd0431f6789851a4e0cb191b
@@ -1135,11 +1143,11 @@ F tool/stack_usage.tcl f8e71b92cdb099a147dad572375595eae55eca43
 F tool/symbols-mingw.sh 4dbcea7e74768305384c9fd2ed2b41bbf9f0414d
 F tool/symbols.sh fec58532668296d7c7dc48be9c87f75ccdb5814f
 F tool/tostr.awk e75472c2f98dd76e06b8c9c1367f4ab07e122d06
-F tool/vdbe-compress.tcl f12c884766bd14277f4fcedcae07078011717381
+F tool/vdbe-compress.tcl 0cf56e9263a152b84da86e75a5c0cdcdb7a47891
 F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
 F tool/warnings.sh d1a6de74685f360ab718efda6265994b99bbea01
 F tool/win/sqlite.vsix 030f3eeaf2cb811a3692ab9c14d021a75ce41fff
-P 9f14f55c8ab77e73dbffb7a9c99422bef14cc17a
-R 14d70c56fa6d70d4b8ae495a017a7ed6
+P 6db7052eeefafdbf26b3153bc38600fecfb53ae6
+R 2f73ea36e182ebaad881490b3d78bb71
 U drh
-Z d160133bb6592eb2691b4e35ce057d8a
+Z 671b11d5131d6faea51d8a864c8026f9
@@ -1 +1 @@
-cee835fe902e46f283257fb8ec9d9744c7d6dd77
+3375571a5e267744c19a7c310840256cec57a242
@@ -136,8 +136,10 @@ END {
     || name=="OP_VUpdate"       \
     || name=="OP_VFilter"       \
     || name=="OP_Next"          \
+     || name=="OP_NextIfOpen"    \
     || name=="OP_SorterNext"    \
     || name=="OP_Prev"          \
+     || name=="OP_PrevIfOpen"    \
    ){
      cnt++
      while( used[cnt] ) cnt++
@@ -526,7 +526,7 @@ int sqlite3_backup_step(sqlite3_backup *p, int nPage){

          /* Sync the database file to disk. */
          if( rc==SQLITE_OK ){
-            rc = sqlite3PagerSync(pDestPager);
+            rc = sqlite3PagerSync(pDestPager, 0);
          }
        }else{
          sqlite3PagerTruncateImage(pDestPager, nDestTruncate);
@@ -601,10 +601,10 @@ int sqlite3_backup_finish(sqlite3_backup *p){

  /* Set the error code of the destination database handle. */
  rc = (p->rc==SQLITE_DONE) ? SQLITE_OK : p->rc;
-  sqlite3Error(p->pDestDb, rc, 0);
-
-  /* Exit the mutexes and free the backup context structure. */
  if( p->pDestDb ){
+    sqlite3Error(p->pDestDb, rc, 0);
+
+    /* Exit the mutexes and free the backup context structure. */
    sqlite3LeaveMutexAndCloseZombie(p->pDestDb);
  }
  sqlite3BtreeLeave(p->pSrc);
@@ -694,6 +694,10 @@ static int btreeMoveto(
    );
    if( pIdxKey==0 ) return SQLITE_NOMEM;
    sqlite3VdbeRecordUnpack(pCur->pKeyInfo, (int)nKey, pKey, pIdxKey);
+    if( pIdxKey->nField==0 ){
+      sqlite3DbFree(pCur->pKeyInfo->db, pFree);
+      return SQLITE_CORRUPT_BKPT;
+    }
  }else{
    pIdxKey = 0;
  }
@@ -1648,7 +1652,7 @@ static int getAndInitPage(
    rc = SQLITE_CORRUPT_BKPT;
  }else{
    rc = btreeGetPage(pBt, pgno, ppPage, bReadonly);
-    if( rc==SQLITE_OK ){
+    if( rc==SQLITE_OK && (*ppPage)->isInit==0 ){
      rc = btreeInitPage(*ppPage);
      if( rc!=SQLITE_OK ){
        releasePage(*ppPage);
@@ -1669,10 +1673,11 @@ static void releasePage(MemPage *pPage){
  if( pPage ){
    assert( pPage->aData );
    assert( pPage->pBt );
+    assert( pPage->pDbPage!=0 );
    assert( sqlite3PagerGetExtra(pPage->pDbPage) == (void*)pPage );
    assert( sqlite3PagerGetData(pPage->pDbPage)==pPage->aData );
    assert( sqlite3_mutex_held(pPage->pBt->mutex) );
-    sqlite3PagerUnref(pPage->pDbPage);
+    sqlite3PagerUnrefNotNull(pPage->pDbPage);
  }
 }

@@ -4188,10 +4193,10 @@ int sqlite3BtreeData(BtCursor *pCur, u32 offset, u32 amt, void *pBuf){
 /*
 ** Return a pointer to payload information from the entry that the 
 ** pCur cursor is pointing to.  The pointer is to the beginning of
-** the key if skipKey==0 and it points to the beginning of data if
-** skipKey==1.  The number of bytes of available key/data is written
-** into *pAmt.  If *pAmt==0, then the value returned will not be
-** a valid pointer.
+** the key if index btrees (pPage->intKey==0) and is the data for
+** table btrees (pPage->intKey==1). The number of bytes of available
+** key/data is written into *pAmt.  If *pAmt==0, then the value
+** returned will not be a valid pointer.
 **
 ** This routine is an optimization.  It is common for the entire key
 ** and data to fit on the local page and for there to be no overflow
@@ -4204,41 +4209,21 @@ int sqlite3BtreeData(BtCursor *pCur, u32 offset, u32 amt, void *pBuf){
 ** page of the database.  The data might change or move the next time
 ** any btree routine is called.
 */
-static const unsigned char *fetchPayload(
+static const void *fetchPayload(
  BtCursor *pCur,      /* Cursor pointing to entry to read from */
-  int *pAmt,           /* Write the number of available bytes here */
-  int skipKey          /* read beginning at data if this is true */
+  u32 *pAmt            /* Write the number of available bytes here */
 ){
-  unsigned char *aPayload;
-  MemPage *pPage;
-  u32 nKey;
-  u32 nLocal;
-
  assert( pCur!=0 && pCur->iPage>=0 && pCur->apPage[pCur->iPage]);
  assert( pCur->eState==CURSOR_VALID );
+  assert( sqlite3_mutex_held(pCur->pBtree->db->mutex) );
  assert( cursorHoldsMutex(pCur) );
-  pPage = pCur->apPage[pCur->iPage];
-  assert( pCur->aiIdx[pCur->iPage]<pPage->nCell );
-  if( NEVER(pCur->info.nSize==0) ){
+  assert( pCur->aiIdx[pCur->iPage]<pCur->apPage[pCur->iPage]->nCell );
+  if( pCur->info.nSize==0 ){
    btreeParseCell(pCur->apPage[pCur->iPage], pCur->aiIdx[pCur->iPage],
                   &pCur->info);
  }
-  aPayload = pCur->info.pCell;
-  aPayload += pCur->info.nHeader;
-  if( pPage->intKey ){
-    nKey = 0;
-  }else{
-    nKey = (int)pCur->info.nKey;
-  }
-  if( skipKey ){
-    aPayload += nKey;
-    nLocal = pCur->info.nLocal - nKey;
-  }else{
-    nLocal = pCur->info.nLocal;
-    assert( nLocal<=nKey );
-  }
-  *pAmt = nLocal;
-  return aPayload;
+  *pAmt = pCur->info.nLocal;
+  return (void*)(pCur->info.pCell + pCur->info.nHeader);
 }


@@ -4256,23 +4241,11 @@ static const unsigned char *fetchPayload(
 ** These routines is used to get quick access to key and data
 ** in the common case where no overflow pages are used.
 */
-const void *sqlite3BtreeKeyFetch(BtCursor *pCur, int *pAmt){
-  const void *p = 0;
-  assert( sqlite3_mutex_held(pCur->pBtree->db->mutex) );
-  assert( cursorHoldsMutex(pCur) );
-  if( ALWAYS(pCur->eState==CURSOR_VALID) ){
-    p = (const void*)fetchPayload(pCur, pAmt, 0);
-  }
-  return p;
+const void *sqlite3BtreeKeyFetch(BtCursor *pCur, u32 *pAmt){
+  return fetchPayload(pCur, pAmt);
 }
-const void *sqlite3BtreeDataFetch(BtCursor *pCur, int *pAmt){
-  const void *p = 0;
-  assert( sqlite3_mutex_held(pCur->pBtree->db->mutex) );
-  assert( cursorHoldsMutex(pCur) );
-  if( ALWAYS(pCur->eState==CURSOR_VALID) ){
-    p = (const void*)fetchPayload(pCur, pAmt, 1);
-  }
-  return p;
+const void *sqlite3BtreeDataFetch(BtCursor *pCur, u32 *pAmt){
+  return fetchPayload(pCur, pAmt);
 }


@@ -4391,8 +4364,6 @@ static void moveToParent(BtCursor *pCur){
 static int moveToRoot(BtCursor *pCur){
  MemPage *pRoot;
  int rc = SQLITE_OK;
-  Btree *p = pCur->pBtree;
-  BtShared *pBt = p->pBt;

  assert( cursorHoldsMutex(pCur) );
  assert( CURSOR_INVALID < CURSOR_REQUIRESEEK );
@@ -4407,16 +4378,12 @@ static int moveToRoot(BtCursor *pCur){
  }

  if( pCur->iPage>=0 ){
-    int i;
-    for(i=1; i<=pCur->iPage; i++){
-      releasePage(pCur->apPage[i]);
-    }
-    pCur->iPage = 0;
+    while( pCur->iPage ) releasePage(pCur->apPage[pCur->iPage--]);
  }else if( pCur->pgnoRoot==0 ){
    pCur->eState = CURSOR_INVALID;
    return SQLITE_OK;
  }else{
-    rc = getAndInitPage(pBt, pCur->pgnoRoot, &pCur->apPage[0],
+    rc = getAndInitPage(pCur->pBtree->pBt, pCur->pgnoRoot, &pCur->apPage[0],
                        pCur->wrFlag==0 ? PAGER_GET_READONLY : 0);
    if( rc!=SQLITE_OK ){
      pCur->eState = CURSOR_INVALID;
@@ -4449,14 +4416,16 @@ static int moveToRoot(BtCursor *pCur){
  pCur->atLast = 0;
  pCur->validNKey = 0;

-  if( pRoot->nCell==0 && !pRoot->leaf ){
+  if( pRoot->nCell>0 ){
+    pCur->eState = CURSOR_VALID;
+  }else if( !pRoot->leaf ){
    Pgno subpage;
    if( pRoot->pgno!=1 ) return SQLITE_CORRUPT_BKPT;
    subpage = get4byte(&pRoot->aData[pRoot->hdrOffset+8]);
    pCur->eState = CURSOR_VALID;
    rc = moveToChild(pCur, subpage);
  }else{
-    pCur->eState = ((pRoot->nCell>0)?CURSOR_VALID:CURSOR_INVALID);
+    pCur->eState = CURSOR_INVALID;
  }
  return rc;
 }
@@ -4647,10 +4616,10 @@ int sqlite3BtreeMovetoUnpacked(
  }
  assert( pCur->apPage[0]->intKey || pIdxKey );
  for(;;){
-    int lwr, upr, idx;
+    int lwr, upr, idx, c;
    Pgno chldPg;
    MemPage *pPage = pCur->apPage[pCur->iPage];
-    int c;
+    u8 *pCell;                          /* Pointer to current cell in pPage */

    /* pPage->nCell must be greater than zero. If this is the root-page
    ** the cursor would have been INVALID above and this for(;;) loop
@@ -4662,35 +4631,47 @@ int sqlite3BtreeMovetoUnpacked(
    assert( pPage->intKey==(pIdxKey==0) );
    lwr = 0;
    upr = pPage->nCell-1;
-    if( biasRight ){
-      pCur->aiIdx[pCur->iPage] = (u16)(idx = upr);
-    }else{
-      pCur->aiIdx[pCur->iPage] = (u16)(idx = (upr+lwr)/2);
-    }
-    for(;;){
-      u8 *pCell;                          /* Pointer to current cell in pPage */
-
-      assert( idx==pCur->aiIdx[pCur->iPage] );
-      pCur->info.nSize = 0;
-      pCell = findCell(pPage, idx) + pPage->childPtrSize;
-      if( pPage->intKey ){
+    assert( biasRight==0 || biasRight==1 );
+    idx = upr>>(1-biasRight); /* idx = biasRight ? upr : (lwr+upr)/2; */
+    pCur->aiIdx[pCur->iPage] = (u16)idx;
+    if( pPage->intKey ){
+      for(;;){
        i64 nCellKey;
+        pCell = findCell(pPage, idx) + pPage->childPtrSize;
        if( pPage->hasData ){
-          u32 dummy;
-          pCell += getVarint32(pCell, dummy);
+          while( 0x80 <= *(pCell++) ){
+            if( pCell>=pPage->aDataEnd ) return SQLITE_CORRUPT_BKPT;
+          }
        }
        getVarint(pCell, (u64*)&nCellKey);
-        if( nCellKey==intKey ){
-          c = 0;
-        }else if( nCellKey<intKey ){
-          c = -1;
+        if( nCellKey<intKey ){
+          lwr = idx+1;
+          if( lwr>upr ){ c = -1; break; }
+        }else if( nCellKey>intKey ){
+          upr = idx-1;
+          if( lwr>upr ){ c = +1; break; }
        }else{
-          assert( nCellKey>intKey );
-          c = +1;
+          assert( nCellKey==intKey );
+          pCur->validNKey = 1;
+          pCur->info.nKey = nCellKey;
+          pCur->aiIdx[pCur->iPage] = (u16)idx;
+          if( !pPage->leaf ){
+            lwr = idx;
+            goto moveto_next_layer;
+          }else{
+            *pRes = 0;
+            rc = SQLITE_OK;
+            goto moveto_finish;
+          }
        }
-        pCur->validNKey = 1;
-        pCur->info.nKey = nCellKey;
-      }else{
+        assert( lwr+upr>=0 );
+        idx = (lwr+upr)>>1;  /* idx = (lwr+upr)/2; */
+      }
+    }else{
+      for(;;){
+        int nCell;
+        pCell = findCell(pPage, idx) + pPage->childPtrSize;
+
        /* The maximum supported page-size is 65536 bytes. This means that
        ** the maximum number of record bytes stored on an index B-Tree
        ** page is less than 16384 bytes and may be stored as a 2-byte
@@ -4699,10 +4680,8 @@ int sqlite3BtreeMovetoUnpacked(
        ** stored entirely within the b-tree page by inspecting the first 
        ** 2 bytes of the cell.
        */
-        int nCell = pCell[0];
-        if( nCell<=pPage->max1bytePayload
-         /* && (pCell+nCell)<pPage->aDataEnd */
-        ){
+        nCell = pCell[0];
+        if( nCell<=pPage->max1bytePayload ){
          /* This branch runs if the record-size field of the cell is a
          ** single byte varint and the record fits entirely on the main
          ** b-tree page.  */
@@ -4710,7 +4689,6 @@ int sqlite3BtreeMovetoUnpacked(
          c = sqlite3VdbeRecordCompare(nCell, (void*)&pCell[1], pIdxKey);
        }else if( !(pCell[1] & 0x80) 
          && (nCell = ((nCell&0x7f)<<7) + pCell[1])<=pPage->maxLocal
-          /* && (pCell+nCell+2)<=pPage->aDataEnd */
        ){
          /* The record-size field is a 2 byte varint and the record 
          ** fits entirely on the main b-tree page.  */
@@ -4730,6 +4708,7 @@ int sqlite3BtreeMovetoUnpacked(
            rc = SQLITE_NOMEM;
            goto moveto_finish;
          }
+          pCur->aiIdx[pCur->iPage] = (u16)idx;
          rc = accessPayload(pCur, 0, nCell, (unsigned char*)pCellKey, 0);
          if( rc ){
            sqlite3_free(pCellKey);
@@ -4738,49 +4717,44 @@ int sqlite3BtreeMovetoUnpacked(
          c = sqlite3VdbeRecordCompare(nCell, pCellKey, pIdxKey);
          sqlite3_free(pCellKey);
        }
-      }
-      if( c==0 ){
-        if( pPage->intKey && !pPage->leaf ){
-          lwr = idx;
-          break;
+        if( c<0 ){
+          lwr = idx+1;
+        }else if( c>0 ){
+          upr = idx-1;
        }else{
+          assert( c==0 );
          *pRes = 0;
          rc = SQLITE_OK;
+          pCur->aiIdx[pCur->iPage] = (u16)idx;
          goto moveto_finish;
        }
+        if( lwr>upr ) break;
+        assert( lwr+upr>=0 );
+        idx = (lwr+upr)>>1;  /* idx = (lwr+upr)/2 */
      }
-      if( c<0 ){
-        lwr = idx+1;
-      }else{
-        upr = idx-1;
-      }
-      if( lwr>upr ){
-        break;
-      }
-      pCur->aiIdx[pCur->iPage] = (u16)(idx = (lwr+upr)/2);
    }
    assert( lwr==upr+1 || (pPage->intKey && !pPage->leaf) );
    assert( pPage->isInit );
    if( pPage->leaf ){
-      chldPg = 0;
-    }else if( lwr>=pPage->nCell ){
-      chldPg = get4byte(&pPage->aData[pPage->hdrOffset+8]);
-    }else{
-      chldPg = get4byte(findCell(pPage, lwr));
-    }
-    if( chldPg==0 ){
      assert( pCur->aiIdx[pCur->iPage]<pCur->apPage[pCur->iPage]->nCell );
+      pCur->aiIdx[pCur->iPage] = (u16)idx;
      *pRes = c;
      rc = SQLITE_OK;
      goto moveto_finish;
    }
+moveto_next_layer:
+    if( lwr>=pPage->nCell ){
+      chldPg = get4byte(&pPage->aData[pPage->hdrOffset+8]);
+    }else{
+      chldPg = get4byte(findCell(pPage, lwr));
+    }
    pCur->aiIdx[pCur->iPage] = (u16)lwr;
-    pCur->info.nSize = 0;
-    pCur->validNKey = 0;
    rc = moveToChild(pCur, chldPg);
-    if( rc ) goto moveto_finish;
+    if( rc ) break;
  }
 moveto_finish:
+  pCur->info.nSize = 0;
+  pCur->validNKey = 0;
  return rc;
 }

@@ -5538,7 +5512,7 @@ static int fillInCell(
    nHeader += 4;
  }
  if( pPage->hasData ){
-    nHeader += putVarint(&pCell[nHeader], nData+nZero);
+    nHeader += putVarint32(&pCell[nHeader], nData+nZero);
  }else{
    nData = nZero = 0;
  }
@@ -5666,7 +5640,6 @@ static void dropCell(MemPage *pPage, int idx, int sz, int *pRC){
  u32 pc;         /* Offset to cell content of cell being deleted */
  u8 *data;       /* pPage->aData */
  u8 *ptr;        /* Used to move bytes around within data[] */
-  u8 *endPtr;     /* End of loop */
  int rc;         /* The return code */
  int hdr;        /* Beginning of the header.  0 most pages.  100 page 1 */

@@ -5691,13 +5664,8 @@ static void dropCell(MemPage *pPage, int idx, int sz, int *pRC){
    *pRC = rc;
    return;
  }
-  endPtr = &pPage->aCellIdx[2*pPage->nCell - 2];
-  assert( (SQLITE_PTR_TO_INT(ptr)&1)==0 );  /* ptr is always 2-byte aligned */
-  while( ptr<endPtr ){
-    *(u16*)ptr = *(u16*)&ptr[2];
-    ptr += 2;
-  }
  pPage->nCell--;
+  memmove(ptr, ptr+2, 2*(pPage->nCell - idx));
  put2byte(&data[hdr+3], pPage->nCell);
  pPage->nFree += 2;
 }
@@ -5734,9 +5702,6 @@ static void insertCell(
  int ins;          /* Index in data[] where new cell pointer is inserted */
  int cellOffset;   /* Address of first cell pointer in data[] */
  u8 *data;         /* The content of the whole page */
-  u8 *ptr;          /* Used for moving information around in data[] */
-  u8 *endPtr;       /* End of the loop */
-
  int nSkip = (iChild ? 4 : 0);

  if( *pRC ) return;
@@ -5787,13 +5752,7 @@ static void insertCell(
    if( iChild ){
      put4byte(&data[idx], iChild);
    }
-    ptr = &data[end];
-    endPtr = &data[ins];
-    assert( (SQLITE_PTR_TO_INT(ptr)&1)==0 );  /* ptr is always 2-byte aligned */
-    while( ptr>endPtr ){
-      *(u16*)ptr = *(u16*)&ptr[-2];
-      ptr -= 2;
-    }
+    memmove(&data[ins+2], &data[ins], end-ins);
    put2byte(&data[ins], idx);
    put2byte(&data[pPage->hdrOffset+3], pPage->nCell);
 #ifndef SQLITE_OMIT_AUTOVACUUM
@@ -7755,7 +7714,7 @@ static void checkAppendMsg(
    sqlite3StrAccumAppend(&pCheck->errMsg, "\n", 1);
  }
  if( zMsg1 ){
-    sqlite3StrAccumAppend(&pCheck->errMsg, zMsg1, -1);
+    sqlite3StrAccumAppendAll(&pCheck->errMsg, zMsg1);
  }
  sqlite3VXPrintf(&pCheck->errMsg, 1, zFormat, ap);
  va_end(ap);
@@ -178,8 +178,8 @@ int sqlite3BtreeEof(BtCursor*);
 int sqlite3BtreePrevious(BtCursor*, int *pRes);
 int sqlite3BtreeKeySize(BtCursor*, i64 *pSize);
 int sqlite3BtreeKey(BtCursor*, u32 offset, u32 amt, void*);
-const void *sqlite3BtreeKeyFetch(BtCursor*, int *pAmt);
-const void *sqlite3BtreeDataFetch(BtCursor*, int *pAmt);
+const void *sqlite3BtreeKeyFetch(BtCursor*, u32 *pAmt);
+const void *sqlite3BtreeDataFetch(BtCursor*, u32 *pAmt);
 int sqlite3BtreeDataSize(BtCursor*, u32 *pSize);
 int sqlite3BtreeData(BtCursor*, u32 offset, u32 amt, void*);
 void sqlite3BtreeSetCachedRowid(BtCursor*, sqlite3_int64);
@@ -2790,7 +2790,7 @@ Index *sqlite3CreateIndex(
  const Column *pTabCol;           /* A column in the table */
  int nExtra = 0;                  /* Space allocated for zExtra[] */
  int nExtraCol;                   /* Number of extra columns needed */
-  char *zExtra;                    /* Extra space after the Index object */
+  char *zExtra = 0;                /* Extra space after the Index object */
  Index *pPk = 0;      /* PRIMARY KEY index for WITHOUT ROWID tables */

  assert( pParse->nErr==0 );      /* Never called with prior errors */
@@ -3989,9 +3989,9 @@ void sqlite3UniqueConstraint(
  for(j=0; j<pIdx->nKeyCol; j++){
    char *zCol = pTab->aCol[pIdx->aiColumn[j]].zName;
    if( j ) sqlite3StrAccumAppend(&errMsg, ", ", 2);
-    sqlite3StrAccumAppend(&errMsg, pTab->zName, -1);
+    sqlite3StrAccumAppendAll(&errMsg, pTab->zName);
    sqlite3StrAccumAppend(&errMsg, ".", 1);
-    sqlite3StrAccumAppend(&errMsg, zCol, -1);
+    sqlite3StrAccumAppendAll(&errMsg, zCol);
  }
  zErr = sqlite3StrAccumFinish(&errMsg);
  sqlite3HaltConstraint(pParse, 
@@ -4183,8 +4183,9 @@ KeyInfo *sqlite3KeyInfoOfIndex(Parse *pParse, Index *pIdx){
      assert( sqlite3KeyInfoIsWriteable(pKey) );
      for(i=0; i<nCol; i++){
        char *zColl = pIdx->azColl[i];
-        if( NEVER(zColl==0) ) zColl = "BINARY";
-        pKey->aColl[i] = sqlite3LocateCollSeq(pParse, zColl);
+        assert( zColl!=0 );
+        pKey->aColl[i] = strcmp(zColl,"BINARY")==0 ? 0 :
+                          sqlite3LocateCollSeq(pParse, zColl);
        pKey->aSortOrder[i] = pIdx->aSortOrder[i];
      }
      if( pParse->nErr ){
@@ -357,7 +357,6 @@ FuncDef *sqlite3FindFunction(

  assert( nArg>=(-2) );
  assert( nArg>=(-1) || createFlag==0 );
-  assert( enc==SQLITE_UTF8 || enc==SQLITE_UTF16LE || enc==SQLITE_UTF16BE );
  h = (sqlite3UpperToLower[(u8)zName[0]] + nName) % ArraySize(db->aFunc.a);

  /* First search for a match amongst the application-defined functions.
@@ -347,6 +347,9 @@ static const char * const azCompileOpt[] = {
 #ifdef SQLITE_SOUNDEX
  "SOUNDEX",
 #endif
+#ifdef SQLITE_SYSTEM_MALLOC
+  "SYSTEM_MALLOC",
+#endif
 #ifdef SQLITE_TCL
  "TCL",
 #endif
@@ -362,6 +365,9 @@ static const char * const azCompileOpt[] = {
 #ifdef SQLITE_USE_ALLOCA
  "USE_ALLOCA",
 #endif
+#ifdef SQLITE_WIN32_MALLOC
+  "WIN32_MALLOC",
+#endif
 #ifdef SQLITE_ZERO_MALLOC
  "ZERO_MALLOC"
 #endif
@@ -227,20 +227,34 @@ void sqlite3DeleteFrom(
  Vdbe *v;               /* The virtual database engine */
  Table *pTab;           /* The table from which records will be deleted */
  const char *zDb;       /* Name of database holding pTab */
-  int end, addr = 0;     /* A couple addresses of generated code */
  int i;                 /* Loop counter */
  WhereInfo *pWInfo;     /* Information about the WHERE clause */
  Index *pIdx;           /* For looping over indices of the table */
  int iTabCur;           /* Cursor number for the table */
  int iDataCur;          /* VDBE cursor for the canonical data source */
  int iIdxCur;           /* Cursor number of the first index */
+  int nIdx;              /* Number of indices */
  sqlite3 *db;           /* Main database structure */
  AuthContext sContext;  /* Authorization context */
  NameContext sNC;       /* Name context to resolve expressions in */
  int iDb;               /* Database number */
  int memCnt = -1;       /* Memory cell used for change counting */
  int rcauth;            /* Value returned by authorization callback */
-
+  int okOnePass;         /* True for one-pass algorithm without the FIFO */
+  int aiCurOnePass[2];   /* The write cursors opened by WHERE_ONEPASS */
+  u8 *aToOpen = 0;       /* Open cursor iTabCur+j if aToOpen[j] is true */
+  Index *pPk;            /* The PRIMARY KEY index on the table */
+  int iPk = 0;           /* First of nPk registers holding PRIMARY KEY value */
+  i16 nPk = 1;           /* Number of columns in the PRIMARY KEY */
+  int iKey;              /* Memory cell holding key of row to be deleted */
+  i16 nKey;              /* Number of memory cells in the row key */
+  int iEphCur = 0;       /* Ephemeral table holding all primary key values */
+  int iRowSet = 0;       /* Register for rowset of rows to delete */
+  int addrBypass = 0;    /* Address of jump over the delete logic */
+  int addrLoop = 0;      /* Top of the delete loop */
+  int addrDelete = 0;    /* Jump directly to the delete logic */
+  int addrEphOpen = 0;   /* Instruction to open the Ephermeral table */
+ 
 #ifndef SQLITE_OMIT_TRIGGER
  int isView;                  /* True if attempting to delete from a view */
  Trigger *pTrigger;           /* List of table triggers, if required */
@@ -295,11 +309,11 @@ void sqlite3DeleteFrom(
  }
  assert(!isView || pTrigger);

-  /* Assign  cursor number to the table and all its indices.
+  /* Assign cursor numbers to the table and all its indices.
  */
  assert( pTabList->nSrc==1 );
  iTabCur = pTabList->a[0].iCursor = pParse->nTab++;
-  for(pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext){
+  for(nIdx=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, nIdx++){
    pParse->nTab++;
  }

@@ -365,106 +379,129 @@ void sqlite3DeleteFrom(
    }
  }else
 #endif /* SQLITE_OMIT_TRUNCATE_OPTIMIZATION */
-  if( !HasRowid(pTab) ){
-    /* There is a WHERE clause on a WITHOUT ROWID table.  
-    */
-    Index *pPk;      /* The PRIMARY KEY index on the table */
-    int iPk;         /* First of nPk memory cells holding PRIMARY KEY value */
-    int iEph;        /* Ephemeral table holding all primary key values */
-    int iKey;        /* Key value inserting into iEph */
-    i16 nPk;         /* Number of components of the PRIMARY KEY */
-
-    pPk = sqlite3PrimaryKeyIndex(pTab);
-    assert( pPk!=0 );
-    nPk = pPk->nKeyCol;
-    iPk = pParse->nMem+1;
-    pParse->nMem += nPk;
-    iKey = ++pParse->nMem;
-    iEph = pParse->nTab++;
-
-    sqlite3VdbeAddOp2(v, OP_OpenEphemeral, iEph, nPk);
-    sqlite3VdbeSetP4KeyInfo(pParse, pPk);
-    pWInfo = sqlite3WhereBegin(pParse, pTabList, pWhere, 0, 0, 0, 0);
-    if( pWInfo==0 ) goto delete_from_cleanup;
-    for(i=0; i<nPk; i++){
-      sqlite3ExprCodeGetColumnOfTable(v, pTab, iTabCur, pPk->aiColumn[i],iPk+i);
+  {
+    if( HasRowid(pTab) ){
+      /* For a rowid table, initialize the RowSet to an empty set */
+      pPk = 0;
+      nPk = 1;
+      iRowSet = ++pParse->nMem;
+      sqlite3VdbeAddOp2(v, OP_Null, 0, iRowSet);
+    }else{
+      /* For a WITHOUT ROWID table, create an ephermeral table used to
+      ** hold all primary keys for rows to be deleted. */
+      pPk = sqlite3PrimaryKeyIndex(pTab);
+      assert( pPk!=0 );
+      nPk = pPk->nKeyCol;
+      iPk = pParse->nMem+1;
+      pParse->nMem += nPk;
+      iEphCur = pParse->nTab++;
+      addrEphOpen = sqlite3VdbeAddOp2(v, OP_OpenEphemeral, iEphCur, nPk);
+      sqlite3VdbeSetP4KeyInfo(pParse, pPk);
    }
-    sqlite3VdbeAddOp4(v, OP_MakeRecord, iPk, nPk, iKey,
-                      sqlite3IndexAffinityStr(v, pPk), P4_TRANSIENT);
-    sqlite3VdbeAddOp2(v, OP_IdxInsert, iEph, iKey);
+  
+    /* Construct a query to find the rowid or primary key for every row
+    ** to be deleted, based on the WHERE clause.
+    */
+    pWInfo = sqlite3WhereBegin(pParse, pTabList, pWhere, 0, 0, 
+                               WHERE_ONEPASS_DESIRED|WHERE_DUPLICATES_OK,
+                               iTabCur+1);
+    if( pWInfo==0 ) goto delete_from_cleanup;
+    okOnePass = sqlite3WhereOkOnePass(pWInfo, aiCurOnePass);
+  
+    /* Keep track of the number of rows to be deleted */
    if( db->flags & SQLITE_CountRows ){
      sqlite3VdbeAddOp2(v, OP_AddImm, memCnt, 1);
    }
-    sqlite3WhereEnd(pWInfo);
-
-    /* Open cursors for all indices of the table.
-    */
-    sqlite3OpenTableAndIndices(pParse, pTab, OP_OpenWrite,
-                               iTabCur, &iDataCur, &iIdxCur);
-
-    /* Loop over the primary keys to be deleted. */
-    addr = sqlite3VdbeAddOp1(v, OP_Rewind, iEph);
-    sqlite3VdbeAddOp2(v, OP_RowKey, iEph, iPk);
-
-    /* Delete the row */
-    sqlite3GenerateRowDelete(pParse, pTab, pTrigger, iDataCur, iIdxCur,
-                             iPk, 0, 1, OE_Default, 0);
-
-    /* End of the delete loop */
-    sqlite3VdbeAddOp2(v, OP_Next, iEph, addr+1);
-    sqlite3VdbeJumpHere(v, addr);
-
-    /* Close the cursors open on the table and its indexes. */
-    assert( iDataCur>=iIdxCur );
-    for(i=0, pIdx=pTab->pIndex; pIdx; i++, pIdx=pIdx->pNext){
-      sqlite3VdbeAddOp1(v, OP_Close, iIdxCur+i);
+  
+    /* Extract the rowid or primary key for the current row */
+    if( pPk ){
+      for(i=0; i<nPk; i++){
+        sqlite3ExprCodeGetColumnOfTable(v, pTab, iTabCur,
+                                        pPk->aiColumn[i], iPk+i);
+      }
+      iKey = iPk;
+    }else{
+      iKey = pParse->nMem + 1;
+      iKey = sqlite3ExprCodeGetColumn(pParse, pTab, -1, iTabCur, iKey, 0);
+      if( iKey>pParse->nMem ) pParse->nMem = iKey;
    }
-  }else{
-    /* There is a WHERE clause on a rowid table.  Run a loop that extracts
-    ** all rowids to be deleted into a RowSet.
-    */
-    int iRowSet = ++pParse->nMem;   /* Register for rowset of rows to delete */
-    int iRowid = ++pParse->nMem;    /* Used for storing rowid values. */
-    int regRowid;                   /* Actual register containing rowids */
-
-    /* Collect rowids of every row to be deleted.
-    */
-    sqlite3VdbeAddOp2(v, OP_Null, 0, iRowSet);
-    pWInfo = sqlite3WhereBegin(
-        pParse, pTabList, pWhere, 0, 0, WHERE_DUPLICATES_OK, 0
-    );
-    if( pWInfo==0 ) goto delete_from_cleanup;
-    regRowid = sqlite3ExprCodeGetColumn(pParse, pTab, -1, iTabCur, iRowid, 0);
-    sqlite3VdbeAddOp2(v, OP_RowSetAdd, iRowSet, regRowid);
-    if( db->flags & SQLITE_CountRows ){
-      sqlite3VdbeAddOp2(v, OP_AddImm, memCnt, 1);
+  
+    if( okOnePass ){
+      /* For ONEPASS, no need to store the rowid/primary-key.  There is only
+      ** one, so just keep it in its register(s) and fall through to the
+      ** delete code.
+      */
+      nKey = nPk; /* OP_Found will use an unpacked key */
+      aToOpen = sqlite3DbMallocRaw(db, nIdx+2);
+      if( aToOpen==0 ){
+        sqlite3WhereEnd(pWInfo);
+        goto delete_from_cleanup;
+      }
+      memset(aToOpen, 1, nIdx+1);
+      aToOpen[nIdx+1] = 0;
+      if( aiCurOnePass[0]>=0 ) aToOpen[aiCurOnePass[0]-iTabCur] = 0;
+      if( aiCurOnePass[1]>=0 ) aToOpen[aiCurOnePass[1]-iTabCur] = 0;
+      if( addrEphOpen ) sqlite3VdbeChangeToNoop(v, addrEphOpen);
+      addrDelete = sqlite3VdbeAddOp0(v, OP_Goto); /* Jump to DELETE logic */
+    }else if( pPk ){
+      /* Construct a composite key for the row to be deleted and remember it */
+      iKey = ++pParse->nMem;
+      nKey = 0;   /* Zero tells OP_Found to use a composite key */
+      sqlite3VdbeAddOp4(v, OP_MakeRecord, iPk, nPk, iKey,
+                        sqlite3IndexAffinityStr(v, pPk), P4_TRANSIENT);
+      sqlite3VdbeAddOp2(v, OP_IdxInsert, iEphCur, iKey);
+    }else{
+      /* Get the rowid of the row to be deleted and remember it in the RowSet */
+      nKey = 1;  /* OP_Seek always uses a single rowid */
+      sqlite3VdbeAddOp2(v, OP_RowSetAdd, iRowSet, iKey);
    }
+  
+    /* End of the WHERE loop */
    sqlite3WhereEnd(pWInfo);
-
-    /* Delete every item whose key was written to the list during the
-    ** database scan.  We have to delete items after the scan is complete
-    ** because deleting an item can change the scan order.  */
-    end = sqlite3VdbeMakeLabel(v);
-
+    if( okOnePass ){
+      /* Bypass the delete logic below if the WHERE loop found zero rows */
+      addrBypass = sqlite3VdbeMakeLabel(v);
+      sqlite3VdbeAddOp2(v, OP_Goto, 0, addrBypass);
+      sqlite3VdbeJumpHere(v, addrDelete);
+    }
+  
    /* Unless this is a view, open cursors for the table we are 
    ** deleting from and all its indices. If this is a view, then the
    ** only effect this statement has is to fire the INSTEAD OF 
-    ** triggers.  */
+    ** triggers.
+    */
    if( !isView ){
-      sqlite3OpenTableAndIndices(pParse, pTab, OP_OpenWrite, iTabCur,
+      sqlite3OpenTableAndIndices(pParse, pTab, OP_OpenWrite, iTabCur, aToOpen,
                                 &iDataCur, &iIdxCur);
-      assert( iDataCur==iTabCur );
-      assert( iIdxCur==iDataCur+1 );
+      assert( pPk || iDataCur==iTabCur );
+      assert( pPk || iIdxCur==iDataCur+1 );
    }
-
-    addr = sqlite3VdbeAddOp3(v, OP_RowSetRead, iRowSet, end, iRowid);
-
+  
+    /* Set up a loop over the rowids/primary-keys that were found in the
+    ** where-clause loop above.
+    */
+    if( okOnePass ){
+      /* Just one row.  Hence the top-of-loop is a no-op */
+      assert( nKey==nPk ); /* OP_Found will use an unpacked key */
+      if( aToOpen[iDataCur-iTabCur] ){
+        assert( pPk!=0 );
+        sqlite3VdbeAddOp4Int(v, OP_NotFound, iDataCur, addrBypass, iKey, nKey);
+      }
+    }else if( pPk ){
+      addrLoop = sqlite3VdbeAddOp1(v, OP_Rewind, iEphCur);
+      sqlite3VdbeAddOp2(v, OP_RowKey, iEphCur, iKey);
+      assert( nKey==0 );  /* OP_Found will use a composite key */
+    }else{
+      addrLoop = sqlite3VdbeAddOp3(v, OP_RowSetRead, iRowSet, 0, iKey);
+      assert( nKey==1 );
+    }  
+  
    /* Delete the row */
 #ifndef SQLITE_OMIT_VIRTUALTABLE
    if( IsVirtual(pTab) ){
      const char *pVTab = (const char *)sqlite3GetVTable(db, pTab);
      sqlite3VtabMakeWritable(pParse, pTab);
-      sqlite3VdbeAddOp4(v, OP_VUpdate, 0, 1, iRowid, pVTab, P4_VTAB);
+      sqlite3VdbeAddOp4(v, OP_VUpdate, 0, 1, iKey, pVTab, P4_VTAB);
      sqlite3VdbeChangeP5(v, OE_Abort);
      sqlite3MayAbort(pParse);
    }else
@@ -472,21 +509,28 @@ void sqlite3DeleteFrom(
    {
      int count = (pParse->nested==0);    /* True to count changes */
      sqlite3GenerateRowDelete(pParse, pTab, pTrigger, iDataCur, iIdxCur,
-                               iRowid, 1, count, OE_Default, 0);
+                               iKey, nKey, count, OE_Default, okOnePass);
    }
-
-    /* End of the delete loop */
-    sqlite3VdbeAddOp2(v, OP_Goto, 0, addr);
-    sqlite3VdbeResolveLabel(v, end);
-
+  
+    /* End of the loop over all rowids/primary-keys. */
+    if( okOnePass ){
+      sqlite3VdbeResolveLabel(v, addrBypass);
+    }else if( pPk ){
+      sqlite3VdbeAddOp2(v, OP_Next, iEphCur, addrLoop+1);
+      sqlite3VdbeJumpHere(v, addrLoop);
+    }else{
+      sqlite3VdbeAddOp2(v, OP_Goto, 0, addrLoop);
+      sqlite3VdbeJumpHere(v, addrLoop);
+    }     
+  
    /* Close the cursors open on the table and its indexes. */
    if( !isView && !IsVirtual(pTab) ){
-      sqlite3VdbeAddOp1(v, OP_Close, iDataCur);
+      if( !pPk ) sqlite3VdbeAddOp1(v, OP_Close, iDataCur);
      for(i=0, pIdx=pTab->pIndex; pIdx; i++, pIdx=pIdx->pNext){
        sqlite3VdbeAddOp1(v, OP_Close, iIdxCur + i);
      }
    }
-  }
+  } /* End non-truncate path */

  /* Update the sqlite_sequence table by storing the content of the
  ** maximum rowid counter values recorded while inserting into
@@ -510,6 +554,7 @@ delete_from_cleanup:
  sqlite3AuthContextPop(&sContext);
  sqlite3SrcListDelete(db, pTabList);
  sqlite3ExprDelete(db, pWhere);
+  sqlite3DbFree(db, aToOpen);
  return;
 }
 /* Make sure "isView" and other macros defined above are undefined. Otherwise
@@ -576,6 +621,7 @@ void sqlite3GenerateRowDelete(
  if( sqlite3FkRequired(pParse, pTab, 0, 0) || pTrigger ){
    u32 mask;                     /* Mask of OLD.* columns in use */
    int iCol;                     /* Iterator used while populating OLD.* */
+    int addrStart;                /* Start of BEFORE trigger programs */

    /* TODO: Could use temporary registers here. Also could attempt to
    ** avoid copying the contents of the rowid register.  */
@@ -596,15 +642,19 @@ void sqlite3GenerateRowDelete(
    }

    /* Invoke BEFORE DELETE trigger programs. */
+    addrStart = sqlite3VdbeCurrentAddr(v);
    sqlite3CodeRowTrigger(pParse, pTrigger, 
        TK_DELETE, 0, TRIGGER_BEFORE, pTab, iOld, onconf, iLabel
    );

-    /* Seek the cursor to the row to be deleted again. It may be that
-    ** the BEFORE triggers coded above have already removed the row
-    ** being deleted. Do not attempt to delete the row a second time, and 
-    ** do not fire AFTER triggers.  */
-    sqlite3VdbeAddOp4Int(v, opSeek, iDataCur, iLabel, iPk, nPk);
+    /* If any BEFORE triggers were coded, then seek the cursor to the 
+    ** row to be deleted again. It may be that the BEFORE triggers moved
+    ** the cursor or of already deleted the row that the cursor was
+    ** pointing to.
+    */
+    if( addrStart<sqlite3VdbeCurrentAddr(v) ){
+      sqlite3VdbeAddOp4Int(v, opSeek, iDataCur, iLabel, iPk, nPk);
+    }

    /* Do FK processing. This call checks that any FK constraints that
    ** refer to this table (i.e. constraints attached to other tables) 
@@ -1191,9 +1191,12 @@ static int exprNodeIsConstant(Walker *pWalker, Expr *pExpr){

  switch( pExpr->op ){
    /* Consider functions to be constant if all their arguments are constant
-    ** and pWalker->u.i==2 */
+    ** and either pWalker->u.i==2 or the function as the SQLITE_FUNC_CONST
+    ** flag. */
    case TK_FUNCTION:
-      if( pWalker->u.i==2 ) return 0;
+      if( pWalker->u.i==2 || ExprHasProperty(pExpr,EP_Constant) ){
+        return WRC_Continue;
+      }
      /* Fall through */
    case TK_ID:
    case TK_COLUMN:
@@ -2623,7 +2626,6 @@ int sqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target){
      }
      break;
    }
-    case TK_CONST_FUNC:
    case TK_FUNCTION: {
      ExprList *pFarg;       /* List of function arguments */
      int nFarg;             /* Number of function arguments */
@@ -2636,8 +2638,6 @@ int sqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target){
      CollSeq *pColl = 0;    /* A collating sequence */

      assert( !ExprHasProperty(pExpr, EP_xIsSelect) );
-      testcase( op==TK_CONST_FUNC );
-      testcase( op==TK_FUNCTION );
      if( ExprHasProperty(pExpr, EP_TokenOnly) ){
        pFarg = 0;
      }else{
@@ -2681,8 +2681,21 @@ int sqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target){
        break;
      }

+      for(i=0; i<nFarg; i++){
+        if( i<32 && sqlite3ExprIsConstant(pFarg->a[i].pExpr) ){
+          constMask |= (1<<i);
+        }
+        if( (pDef->funcFlags & SQLITE_FUNC_NEEDCOLL)!=0 && !pColl ){
+          pColl = sqlite3ExprCollSeq(pParse, pFarg->a[i].pExpr);
+        }
+      }
      if( pFarg ){
-        r1 = sqlite3GetTempRange(pParse, nFarg);
+        if( constMask ){
+          r1 = pParse->nMem+1;
+          pParse->nMem += nFarg;
+        }else{
+          r1 = sqlite3GetTempRange(pParse, nFarg);
+        }

        /* For length() and typeof() functions with a column argument,
        ** set the P5 parameter to the OP_Column opcode to OPFLAG_LENGTHARG
@@ -2697,14 +2710,15 @@ int sqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target){
          if( exprOp==TK_COLUMN || exprOp==TK_AGG_COLUMN ){
            assert( SQLITE_FUNC_LENGTH==OPFLAG_LENGTHARG );
            assert( SQLITE_FUNC_TYPEOF==OPFLAG_TYPEOFARG );
-            testcase( (pDef->funcFlags&~SQLITE_FUNC_ENCMASK)
-                       ==SQLITE_FUNC_LENGTH );
-            pFarg->a[0].pExpr->op2 = pDef->funcFlags&~SQLITE_FUNC_ENCMASK;
+            testcase( pDef->funcFlags & OPFLAG_LENGTHARG );
+            pFarg->a[0].pExpr->op2 = 
+                  pDef->funcFlags & (OPFLAG_LENGTHARG|OPFLAG_TYPEOFARG);
          }
        }

        sqlite3ExprCachePush(pParse);     /* Ticket 2ea2425d34be */
-        sqlite3ExprCodeExprList(pParse, pFarg, r1, 1);
+        sqlite3ExprCodeExprList(pParse, pFarg, r1, 
+                                SQLITE_ECEL_DUP|SQLITE_ECEL_FACTOR);
        sqlite3ExprCachePop(pParse, 1);   /* Ticket 2ea2425d34be */
      }else{
        r1 = 0;
@@ -2728,14 +2742,6 @@ int sqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target){
        pDef = sqlite3VtabOverloadFunction(db, pDef, nFarg, pFarg->a[0].pExpr);
      }
 #endif
-      for(i=0; i<nFarg; i++){
-        if( i<32 && sqlite3ExprIsConstant(pFarg->a[i].pExpr) ){
-          constMask |= (1<<i);
-        }
-        if( (pDef->funcFlags & SQLITE_FUNC_NEEDCOLL)!=0 && !pColl ){
-          pColl = sqlite3ExprCollSeq(pParse, pFarg->a[i].pExpr);
-        }
-      }
      if( pDef->funcFlags & SQLITE_FUNC_NEEDCOLL ){
        if( !pColl ) pColl = db->pDfltColl; 
        sqlite3VdbeAddOp4(v, OP_CollSeq, 0, 0, 0, (char *)pColl, P4_COLLSEQ);
@@ -2743,7 +2749,7 @@ int sqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target){
      sqlite3VdbeAddOp4(v, OP_Function, constMask, r1, target,
                        (char*)pDef, P4_FUNCDEF);
      sqlite3VdbeChangeP5(v, (u8)nFarg);
-      if( nFarg ){
+      if( nFarg && constMask==0 ){
        sqlite3ReleaseTempRange(pParse, r1, nFarg);
      }
      break;
@@ -2980,6 +2986,28 @@ int sqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target){
  return inReg;
 }

+/*
+** Factor out the code of the given expression to initialization time.
+*/
+void sqlite3ExprCodeAtInit(
+  Parse *pParse,    /* Parsing context */
+  Expr *pExpr,      /* The expression to code when the VDBE initializes */
+  int regDest,      /* Store the value in this register */
+  u8 reusable       /* True if this expression is reusable */
+){
+  ExprList *p;
+  assert( ConstFactorOk(pParse) );
+  p = pParse->pConstExpr;
+  pExpr = sqlite3ExprDup(pParse->db, pExpr, 0);
+  p = sqlite3ExprListAppend(pParse, p, pExpr);
+  if( p ){
+     struct ExprList_item *pItem = &p->a[p->nExpr-1];
+     pItem->u.iConstExprReg = regDest;
+     pItem->reusable = reusable;
+  }
+  pParse->pConstExpr = p;
+}
+
 /*
 ** Generate code to evaluate an expression and store the results
 ** into a register.  Return the register number where the results
@@ -2996,7 +3024,7 @@ int sqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target){
 int sqlite3ExprCodeTemp(Parse *pParse, Expr *pExpr, int *pReg){
  int r2;
  pExpr = sqlite3ExprSkipCollate(pExpr);
-  if( pParse->cookieGoto>0
+  if( ConstFactorOk(pParse)
   && pExpr->op!=TK_REGISTER
   && sqlite3ExprIsConstantNotJoin(pExpr)
  ){
@@ -3004,16 +3032,15 @@ int sqlite3ExprCodeTemp(Parse *pParse, Expr *pExpr, int *pReg){
    int i;
    *pReg  = 0;
    if( p ){
-      for(i=0; i<p->nExpr; i++){
-        if( sqlite3ExprCompare(p->a[i].pExpr, pExpr, -1)==0 ){
-          return p->a[i].u.iConstExprReg;
+      struct ExprList_item *pItem;
+      for(pItem=p->a, i=p->nExpr; i>0; pItem++, i--){
+        if( pItem->reusable && sqlite3ExprCompare(pItem->pExpr,pExpr,-1)==0 ){
+          return pItem->u.iConstExprReg;
        }
      }
    }
-    p = sqlite3ExprListAppend(pParse, p, sqlite3ExprDup(pParse->db, pExpr, 0));
-    pParse->pConstExpr = p;
    r2 = ++pParse->nMem;
-    if( p ) p->a[p->nExpr-1].u.iConstExprReg = r2;
+    sqlite3ExprCodeAtInit(pParse, pExpr, r2, 1);
  }else{
    int r1 = sqlite3GetTempReg(pParse);
    r2 = sqlite3ExprCodeTarget(pParse, pExpr, r1);
@@ -3203,7 +3230,6 @@ void sqlite3ExplainExpr(Vdbe *pOut, Expr *pExpr){
    }

    case TK_AGG_FUNCTION:
-    case TK_CONST_FUNC:
    case TK_FUNCTION: {
      ExprList *pFarg;       /* List of function arguments */
      if( ExprHasProperty(pExpr, EP_TokenOnly) ){
@@ -3359,25 +3385,36 @@ void sqlite3ExplainExprList(Vdbe *pOut, ExprList *pList){
 ** expression list into a sequence of registers beginning at target.
 **
 ** Return the number of elements evaluated.
+**
+** The SQLITE_ECEL_DUP flag prevents the arguments from being
+** filled using OP_SCopy.  OP_Copy must be used instead.
+**
+** The SQLITE_ECEL_FACTOR argument allows constant arguments to be
+** factored out into initialization code.
 */
 int sqlite3ExprCodeExprList(
  Parse *pParse,     /* Parsing context */
  ExprList *pList,   /* The expression list to be coded */
  int target,        /* Where to write results */
-  int doHardCopy     /* Make a hard copy of every element */
+  u8 flags           /* SQLITE_ECEL_* flags */
 ){
  struct ExprList_item *pItem;
  int i, n;
+  u8 copyOp = (flags & SQLITE_ECEL_DUP) ? OP_Copy : OP_SCopy;
  assert( pList!=0 );
  assert( target>0 );
  assert( pParse->pVdbe!=0 );  /* Never gets this far otherwise */
  n = pList->nExpr;
+  if( !ConstFactorOk(pParse) ) flags &= ~SQLITE_ECEL_FACTOR;
  for(pItem=pList->a, i=0; i<n; i++, pItem++){
    Expr *pExpr = pItem->pExpr;
-    int inReg = sqlite3ExprCodeTarget(pParse, pExpr, target+i);
-    if( inReg!=target+i ){
-      sqlite3VdbeAddOp2(pParse->pVdbe, doHardCopy ? OP_Copy : OP_SCopy,
-                        inReg, target+i);
+    if( (flags & SQLITE_ECEL_FACTOR)!=0 && sqlite3ExprIsConstant(pExpr) ){
+      sqlite3ExprCodeAtInit(pParse, pExpr, target+i, 0);
+    }else{
+      int inReg = sqlite3ExprCodeTarget(pParse, pExpr, target+i);
+      if( inReg!=target+i ){
+        sqlite3VdbeAddOp2(pParse->pVdbe, copyOp, inReg, target+i);
+      }
    }
  }
  return n;
@@ -548,6 +548,7 @@ static void fkScanChildren(
  assert( pIdx==0 || pIdx->pTable==pTab );
  assert( pIdx==0 || pIdx->nKeyCol==pFKey->nCol );
  assert( pIdx!=0 || pFKey->nCol==1 );
+  assert( pIdx!=0 || HasRowid(pTab) );

  if( nIncr<0 ){
    iFkIfZero = sqlite3VdbeAddOp2(v, OP_FkIfZero, pFKey->isDeferred, 0);
@@ -600,6 +601,7 @@ static void fkScanChildren(
    }else{
      Expr *pEq, *pAll = 0;
      Index *pPk = sqlite3PrimaryKeyIndex(pTab);
+      assert( pIdx!=0 );
      for(i=0; i<pPk->nKeyCol; i++){
        i16 iCol = pIdx->aiColumn[i];
        pLeft = exprTableRegister(pParse, pTab, regData, iCol);
@@ -218,6 +218,32 @@ static void instrFunc(
  sqlite3_result_int(context, N);
 }

+/*
+** Implementation of the printf() function.
+*/
+static void printfFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  PrintfArguments x;
+  StrAccum str;
+  const char *zFormat;
+  int n;
+
+  if( argc>=1 && (zFormat = (const char*)sqlite3_value_text(argv[0]))!=0 ){
+    x.nArg = argc-1;
+    x.nUsed = 0;
+    x.apArg = argv+1;
+    sqlite3StrAccumInit(&str, 0, 0, SQLITE_MAX_LENGTH);
+    str.db = sqlite3_context_db_handle(context);
+    sqlite3XPrintf(&str, SQLITE_PRINTF_SQLFUNC, zFormat, &x);
+    n = str.nChar;
+    sqlite3_result_text(context, sqlite3StrAccumFinish(&str), n,
+                        SQLITE_DYNAMIC);
+  }
+}
+
 /*
 ** Implementation of the substr() function.
 **
@@ -1511,11 +1537,11 @@ static void groupConcatStep(
        zSep = ",";
        nSep = 1;
      }
-      sqlite3StrAccumAppend(pAccum, zSep, nSep);
+      if( nSep ) sqlite3StrAccumAppend(pAccum, zSep, nSep);
    }
    zVal = (char*)sqlite3_value_text(argv[0]);
    nVal = sqlite3_value_bytes(argv[0]);
-    sqlite3StrAccumAppend(pAccum, zVal, nVal);
+    if( nVal ) sqlite3StrAccumAppend(pAccum, zVal, nVal);
  }
 }
 static void groupConcatFinalize(sqlite3_context *context){
@@ -1648,6 +1674,7 @@ void sqlite3RegisterGlobalFunctions(void){
    FUNCTION(instr,              2, 0, 0, instrFunc        ),
    FUNCTION(substr,             2, 0, 0, substrFunc       ),
    FUNCTION(substr,             3, 0, 0, substrFunc       ),
+    FUNCTION(printf,            -1, 0, 0, printfFunc       ),
    FUNCTION(unicode,            1, 0, 0, unicodeFunc      ),
    FUNCTION(char,              -1, 0, 0, charFunc         ),
    FUNCTION(abs,                1, 0, 0, absFunc          ),
@@ -1664,8 +1691,8 @@ void sqlite3RegisterGlobalFunctions(void){
    FUNCTION2(ifnull,            2, 0, 0, noopFunc,  SQLITE_FUNC_COALESCE),
    FUNCTION2(unlikely,          1, 0, 0, noopFunc,  SQLITE_FUNC_UNLIKELY),
    FUNCTION2(likelihood,        2, 0, 0, noopFunc,  SQLITE_FUNC_UNLIKELY),
-    FUNCTION(random,             0, 0, 0, randomFunc       ),
-    FUNCTION(randomblob,         1, 0, 0, randomBlob       ),
+    VFUNCTION(random,            0, 0, 0, randomFunc       ),
+    VFUNCTION(randomblob,        1, 0, 0, randomBlob       ),
    FUNCTION(nullif,             2, 0, 1, nullifFunc       ),
    FUNCTION(sqlite_version,     0, 0, 0, versionFunc      ),
    FUNCTION(sqlite_source_id,   0, 0, 0, sourceidFunc     ),
@@ -1675,9 +1702,9 @@ void sqlite3RegisterGlobalFunctions(void){
    FUNCTION(sqlite_compileoption_get, 1, 0, 0, compileoptiongetFunc  ),
 #endif /* SQLITE_OMIT_COMPILEOPTION_DIAGS */
    FUNCTION(quote,              1, 0, 0, quoteFunc        ),
-    FUNCTION(last_insert_rowid,  0, 0, 0, last_insert_rowid),
-    FUNCTION(changes,            0, 0, 0, changes          ),
-    FUNCTION(total_changes,      0, 0, 0, total_changes    ),
+    VFUNCTION(last_insert_rowid, 0, 0, 0, last_insert_rowid),
+    VFUNCTION(changes,           0, 0, 0, changes          ),
+    VFUNCTION(total_changes,     0, 0, 0, total_changes    ),
    FUNCTION(replace,            3, 0, 0, replaceFunc      ),
    FUNCTION(zeroblob,           1, 0, 0, zeroblobFunc     ),
  #ifdef SQLITE_SOUNDEX
@@ -148,6 +148,7 @@ SQLITE_WSD struct Sqlite3Config sqlite3Config = {
   SQLITE_USE_URI,            /* bOpenUri */
   SQLITE_ALLOW_COVERING_INDEX_SCAN,   /* bUseCis */
   0x7ffffffe,                /* mxStrlen */
+   0,                         /* neverCorrupt */
   128,                       /* szLookaside */
   500,                       /* nLookaside */
   {0,0,0,0,0,0,0,0},         /* m */
@@ -183,7 +184,6 @@ SQLITE_WSD struct Sqlite3Config sqlite3Config = {
 #endif
 };

-
 /*
 ** Hash table for global functions - functions common to all
 ** database connections.  After initialization, this table is
@@ -820,7 +820,7 @@ void sqlite3Insert(
  /* If this is not a view, open the table and and all indices */
  if( !isView ){
    int nIdx;
-    nIdx = sqlite3OpenTableAndIndices(pParse, pTab, OP_OpenWrite, -1,
+    nIdx = sqlite3OpenTableAndIndices(pParse, pTab, OP_OpenWrite, -1, 0,
                                      &iDataCur, &iIdxCur);
    aRegIdx = sqlite3DbMallocRaw(db, sizeof(int)*(nIdx+1));
    if( aRegIdx==0 ){
@@ -1680,16 +1680,19 @@ int sqlite3OpenTableAndIndices(
  Table *pTab,     /* Table to be opened */
  int op,          /* OP_OpenRead or OP_OpenWrite */
  int iBase,       /* Use this for the table cursor, if there is one */
+  u8 *aToOpen,     /* If not NULL: boolean for each table and index */
  int *piDataCur,  /* Write the database source cursor number here */
  int *piIdxCur    /* Write the first index cursor number here */
 ){
  int i;
  int iDb;
+  int iDataCur;
  Index *pIdx;
  Vdbe *v;

  assert( op==OP_OpenRead || op==OP_OpenWrite );
  if( IsVirtual(pTab) ){
+    assert( aToOpen==0 );
    *piDataCur = 0;
    *piIdxCur = 1;
    return 0;
@@ -1698,20 +1701,25 @@ int sqlite3OpenTableAndIndices(
  v = sqlite3GetVdbe(pParse);
  assert( v!=0 );
  if( iBase<0 ) iBase = pParse->nTab;
-  if( HasRowid(pTab) ){
-    *piDataCur = iBase++;
-    sqlite3OpenTable(pParse, *piDataCur, iDb, pTab, op);
+  iDataCur = iBase++;
+  if( piDataCur ) *piDataCur = iDataCur;
+  if( HasRowid(pTab) && (aToOpen==0 || aToOpen[0]) ){
+    sqlite3OpenTable(pParse, iDataCur, iDb, pTab, op);
  }else{
    sqlite3TableLock(pParse, iDb, pTab->tnum, op==OP_OpenWrite, pTab->zName);
  }
-  *piIdxCur = iBase;
+  if( piIdxCur ) *piIdxCur = iBase;
  for(i=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, i++){
    int iIdxCur = iBase++;
    assert( pIdx->pSchema==pTab->pSchema );
-    if( pIdx->autoIndex==2 && !HasRowid(pTab) ) *piDataCur = iIdxCur;
-    sqlite3VdbeAddOp3(v, op, iIdxCur, pIdx->tnum, iDb);
-    sqlite3VdbeSetP4KeyInfo(pParse, pIdx);
-    VdbeComment((v, "%s", pIdx->zName));
+    if( pIdx->autoIndex==2 && !HasRowid(pTab) && piDataCur ){
+      *piDataCur = iIdxCur;
+    }
+    if( aToOpen==0 || aToOpen[i+1] ){
+      sqlite3VdbeAddOp3(v, op, iIdxCur, pIdx->tnum, iDb);
+      sqlite3VdbeSetP4KeyInfo(pParse, pIdx);
+      VdbeComment((v, "%s", pIdx->zName));
+    }
  }
  if( iBase>pParse->nTab ) pParse->nTab = iBase;
  return i;
@@ -515,6 +515,13 @@ int sqlite3_config(int op, ...){
      break;
    }

+#if SQLITE_OS_WIN && defined(SQLITE_WIN32_MALLOC)
+    case SQLITE_CONFIG_WIN32_HEAPSIZE: {
+      sqlite3GlobalConfig.nHeap = va_arg(ap, int);
+      break;
+    }
+#endif
+
    default: {
      rc = SQLITE_ERROR;
      break;
@@ -581,7 +588,8 @@ static int setupLookaside(sqlite3 *db, void *pBuf, int sz, int cnt){
    db->lookaside.bEnabled = 1;
    db->lookaside.bMalloced = pBuf==0 ?1:0;
  }else{
-    db->lookaside.pEnd = 0;
+    db->lookaside.pStart = db;
+    db->lookaside.pEnd = db;
    db->lookaside.bEnabled = 0;
    db->lookaside.bMalloced = 0;
  }
@@ -979,9 +987,7 @@ void sqlite3LeaveMutexAndCloseZombie(sqlite3 *db){
 #endif

  sqlite3Error(db, SQLITE_OK, 0); /* Deallocates any cached error strings. */
-  if( db->pErr ){
-    sqlite3ValueFree(db->pErr);
-  }
+  sqlite3ValueFree(db->pErr);
  sqlite3CloseExtensions(db);

  db->magic = SQLITE_MAGIC_ERROR;
@@ -1079,6 +1085,7 @@ const char *sqlite3ErrName(int rc){
      case SQLITE_READONLY_RECOVERY:  zName = "SQLITE_READONLY_RECOVERY"; break;
      case SQLITE_READONLY_CANTLOCK:  zName = "SQLITE_READONLY_CANTLOCK"; break;
      case SQLITE_READONLY_ROLLBACK:  zName = "SQLITE_READONLY_ROLLBACK"; break;
+      case SQLITE_READONLY_DBMOVED:   zName = "SQLITE_READONLY_DBMOVED";  break;
      case SQLITE_INTERRUPT:          zName = "SQLITE_INTERRUPT";         break;
      case SQLITE_IOERR:              zName = "SQLITE_IOERR";             break;
      case SQLITE_IOERR_READ:         zName = "SQLITE_IOERR_READ";        break;
@@ -1363,6 +1370,7 @@ int sqlite3CreateFunc(
 ){
  FuncDef *p;
  int nName;
+  int extraFlags;

  assert( sqlite3_mutex_held(db->mutex) );
  if( zFunctionName==0 ||
@@ -1373,6 +1381,10 @@ int sqlite3CreateFunc(
      (255<(nName = sqlite3Strlen30( zFunctionName))) ){
    return SQLITE_MISUSE_BKPT;
  }
+
+  assert( SQLITE_FUNC_CONSTANT==SQLITE_DETERMINISTIC );
+  extraFlags = enc &  SQLITE_DETERMINISTIC;
+  enc &= (SQLITE_FUNC_ENCMASK|SQLITE_ANY);
  
 #ifndef SQLITE_OMIT_UTF16
  /* If SQLITE_UTF16 is specified as the encoding type, transform this
@@ -1386,10 +1398,10 @@ int sqlite3CreateFunc(
    enc = SQLITE_UTF16NATIVE;
  }else if( enc==SQLITE_ANY ){
    int rc;
-    rc = sqlite3CreateFunc(db, zFunctionName, nArg, SQLITE_UTF8,
+    rc = sqlite3CreateFunc(db, zFunctionName, nArg, SQLITE_UTF8|extraFlags,
         pUserData, xFunc, xStep, xFinal, pDestructor);
    if( rc==SQLITE_OK ){
-      rc = sqlite3CreateFunc(db, zFunctionName, nArg, SQLITE_UTF16LE,
+      rc = sqlite3CreateFunc(db, zFunctionName, nArg, SQLITE_UTF16LE|extraFlags,
          pUserData, xFunc, xStep, xFinal, pDestructor);
    }
    if( rc!=SQLITE_OK ){
@@ -1432,7 +1444,8 @@ int sqlite3CreateFunc(
    pDestructor->nRef++;
  }
  p->pDestructor = pDestructor;
-  p->funcFlags &= SQLITE_FUNC_ENCMASK;
+  p->funcFlags = (p->funcFlags & SQLITE_FUNC_ENCMASK) | extraFlags;
+  testcase( p->funcFlags & SQLITE_DETERMINISTIC );
  p->xFunc = xFunc;
  p->xStep = xStep;
  p->xFinalize = xFinal;
@@ -1862,6 +1875,7 @@ const char *sqlite3_errmsg(sqlite3 *db){
  if( db->mallocFailed ){
    z = sqlite3ErrStr(SQLITE_NOMEM);
  }else{
+    testcase( db->pErr==0 );
    z = (char*)sqlite3_value_text(db->pErr);
    assert( !db->mallocFailed );
    if( z==0 ){
@@ -1903,8 +1917,7 @@ const void *sqlite3_errmsg16(sqlite3 *db){
  }else{
    z = sqlite3_value_text16(db->pErr);
    if( z==0 ){
-      sqlite3ValueSetStr(db->pErr, -1, sqlite3ErrStr(db->errCode),
-           SQLITE_UTF8, SQLITE_STATIC);
+      sqlite3Error(db, db->errCode, sqlite3ErrStr(db->errCode));
      z = sqlite3_value_text16(db->pErr);
    }
    /* A malloc() may have failed within the call to sqlite3_value_text16()
@@ -2618,8 +2631,6 @@ static int openDatabase(
  }
 #endif

-  sqlite3Error(db, rc, 0);
-
  /* -DSQLITE_DEFAULT_LOCKING_MODE=1 makes EXCLUSIVE the default locking
  ** mode.  -DSQLITE_DEFAULT_LOCKING_MODE=0 make NORMAL the default locking
  ** mode.  Doing nothing at all also makes NORMAL the default.
@@ -3289,6 +3300,19 @@ int sqlite3_test_control(int op, ...){
    }
 #endif

+    /*   sqlite3_test_control(SQLITE_TESTCTRL_NEVER_CORRUPT, int);
+    **
+    ** Set or clear a flag that indicates that the database file is always well-
+    ** formed and never corrupt.  This flag is clear by default, indicating that
+    ** database files might have arbitrary corruption.  Setting the flag during
+    ** testing causes certain assert() statements in the code to be activated
+    ** that demonstrat invariants on well-formed database files.
+    */
+    case SQLITE_TESTCTRL_NEVER_CORRUPT: {
+      sqlite3Config.neverCorrupt = va_arg(ap, int);
+      break;
+    }
+
  }
  va_end(ap);
 #endif /* SQLITE_OMIT_BUILTIN_TEST */
@@ -433,7 +433,7 @@ void sqlite3ScratchFree(void *p){
 */
 #ifndef SQLITE_OMIT_LOOKASIDE
 static int isLookaside(sqlite3 *db, void *p){
-  return p && p>=db->lookaside.pStart && p<db->lookaside.pEnd;
+  return p>=db->lookaside.pStart && p<db->lookaside.pEnd;
 }
 #else
 #define isLookaside(A,B) 0
@@ -449,8 +449,9 @@ int sqlite3MallocSize(void *p){
  return sqlite3GlobalConfig.m.xSize(p);
 }
 int sqlite3DbMallocSize(sqlite3 *db, void *p){
-  assert( db==0 || sqlite3_mutex_held(db->mutex) );
-  if( db && isLookaside(db, p) ){
+  assert( db!=0 );
+  assert( sqlite3_mutex_held(db->mutex) );
+  if( isLookaside(db, p) ){
    return db->lookaside.sz;
  }else{
    assert( sqlite3MemdebugHasType(p, MEMTYPE_DB) );
@@ -202,32 +202,13 @@ static void memsys5Leave(void){
 static int memsys5Size(void *p){
  int iSize = 0;
  if( p ){
-    int i = ((u8 *)p-mem5.zPool)/mem5.szAtom;
+    int i = (int)(((u8 *)p-mem5.zPool)/mem5.szAtom);
    assert( i>=0 && i<mem5.nBlock );
    iSize = mem5.szAtom * (1 << (mem5.aCtrl[i]&CTRL_LOGSIZE));
  }
  return iSize;
 }

-/*
-** Find the first entry on the freelist iLogsize.  Unlink that
-** entry and return its index. 
-*/
-static int memsys5UnlinkFirst(int iLogsize){
-  int i;
-  int iFirst;
-
-  assert( iLogsize>=0 && iLogsize<=LOGMAX );
-  i = iFirst = mem5.aiFreelist[iLogsize];
-  assert( iFirst>=0 );
-  while( i>0 ){
-    if( i<iFirst ) iFirst = i;
-    i = MEM5LINK(i)->next;
-  }
-  memsys5Unlink(iFirst, iLogsize);
-  return iFirst;
-}
-
 /*
 ** Return a block of memory of at least nBytes in size.
 ** Return NULL if unable.  Return NULL if nBytes==0.
@@ -273,7 +254,8 @@ static void *memsys5MallocUnsafe(int nByte){
    sqlite3_log(SQLITE_NOMEM, "failed to allocate %u bytes", nByte);
    return 0;
  }
-  i = memsys5UnlinkFirst(iBin);
+  i = mem5.aiFreelist[iBin];
+  memsys5Unlink(i, iBin);
  while( iBin>iLogsize ){
    int newSize;

@@ -307,7 +289,7 @@ static void memsys5FreeUnsafe(void *pOld){
  /* Set iBlock to the index of the block pointed to by pOld in 
  ** the array of mem5.szAtom byte blocks pointed to by mem5.zPool.
  */
-  iBlock = ((u8 *)pOld-mem5.zPool)/mem5.szAtom;
+  iBlock = (int)(((u8 *)pOld-mem5.zPool)/mem5.szAtom);

  /* Check that the pointer pOld points to a valid, non-free block. */
  assert( iBlock>=0 && iBlock<mem5.nBlock );
@@ -1315,6 +1315,15 @@ static int findInodeInfo(
  return SQLITE_OK;
 }

+/*
+** Return TRUE if pFile has been renamed or unlinked since it was first opened.
+*/
+static int fileHasMoved(unixFile *pFile){
+  struct stat buf;
+  return pFile->pInode!=0 &&
+         (osStat(pFile->zPath, &buf)!=0 || buf.st_ino!=pFile->pInode->fileId.ino);
+}
+

 /*
 ** Check a unixFile that is a database.  Verify the following:
@@ -1349,10 +1358,7 @@ static void verifyDbFile(unixFile *pFile){
    pFile->ctrlFlags |= UNIXFILE_WARNED;
    return;
  }
-  if( pFile->pInode!=0
-   && ((rc = osStat(pFile->zPath, &buf))!=0
-       || buf.st_ino!=pFile->pInode->fileId.ino)
-  ){
+  if( fileHasMoved(pFile) ){
    sqlite3_log(SQLITE_WARNING, "file renamed while open: %s", pFile->zPath);
    pFile->ctrlFlags |= UNIXFILE_WARNED;
    return;
@@ -3801,6 +3807,10 @@ static int unixFileControl(sqlite3_file *id, int op, void *pArg){
      }
      return SQLITE_OK;
    }
+    case SQLITE_FCNTL_HAS_MOVED: {
+      *(int*)pArg = fileHasMoved(pFile);
+      return SQLITE_OK;
+    }
 #if SQLITE_MAX_MMAP_SIZE>0
    case SQLITE_FCNTL_MMAP_SIZE: {
      i64 newLimit = *(i64*)pArg;
@@ -4081,7 +4091,7 @@ static int unixShmSystemLock(
 #ifdef SQLITE_DEBUG
  { u16 mask;
  OSTRACE(("SHM-LOCK "));
-  mask = (1<<(ofst+n)) - (1<<ofst);
+  mask = ofst>31 ? 0xffffffff : (1<<(ofst+n)) - (1<<ofst);
  if( rc==SQLITE_OK ){
    if( lockType==F_UNLCK ){
      OSTRACE(("unlock %d ok", ofst));
@@ -59,6 +59,34 @@
 must be defined."
 #endif

+/*
+** Define the required Windows SDK version constants if they are not
+** already available.
+*/
+#ifndef NTDDI_WIN8
+#  define NTDDI_WIN8                        0x06020000
+#endif
+
+#ifndef NTDDI_WINBLUE
+#  define NTDDI_WINBLUE                     0x06030000
+#endif
+
+/*
+** Check if the GetVersionEx[AW] functions should be considered deprecated
+** and avoid using them in that case.  It should be noted here that if the
+** value of the SQLITE_WIN32_GETVERSIONEX pre-processor macro is zero
+** (whether via this block or via being manually specified), that implies
+** the underlying operating system will always be based on the Windows NT
+** Kernel.
+*/
+#ifndef SQLITE_WIN32_GETVERSIONEX
+#  if defined(NTDDI_VERSION) && NTDDI_VERSION >= NTDDI_WINBLUE
+#    define SQLITE_WIN32_GETVERSIONEX   0
+#  else
+#    define SQLITE_WIN32_GETVERSIONEX   1
+#  endif
+#endif
+
 /*
 ** This constant should already be defined (in the "WinDef.h" SDK file).
 */
@@ -694,7 +722,8 @@ static struct win_syscall {

 #define osGetTickCount ((DWORD(WINAPI*)(VOID))aSyscall[33].pCurrent)

-#if defined(SQLITE_WIN32_HAS_ANSI)
+#if defined(SQLITE_WIN32_HAS_ANSI) && defined(SQLITE_WIN32_GETVERSIONEX) && \
+        SQLITE_WIN32_GETVERSIONEX
  { "GetVersionExA",           (SYSCALL)GetVersionExA,           0 },
 #else
  { "GetVersionExA",           (SYSCALL)0,                       0 },
@@ -703,7 +732,8 @@ static struct win_syscall {
 #define osGetVersionExA ((BOOL(WINAPI*)( \
        LPOSVERSIONINFOA))aSyscall[34].pCurrent)

-#if !SQLITE_OS_WINRT && defined(SQLITE_WIN32_HAS_WIDE)
+#if !SQLITE_OS_WINRT && defined(SQLITE_WIN32_HAS_WIDE) && \
+        defined(SQLITE_WIN32_GETVERSIONEX) && SQLITE_WIN32_GETVERSIONEX
  { "GetVersionExW",           (SYSCALL)GetVersionExW,           0 },
 #else
  { "GetVersionExW",           (SYSCALL)0,                       0 },
@@ -1260,11 +1290,10 @@ void sqlite3_win32_sleep(DWORD milliseconds){
 ** WinNT/2K/XP so that we will know whether or not we can safely call
 ** the LockFileEx() API.
 */
-#ifndef NTDDI_WIN8
-#  define NTDDI_WIN8                        0x06020000
-#endif

-#if SQLITE_OS_WINCE || SQLITE_OS_WINRT || !defined(SQLITE_WIN32_HAS_ANSI)
+#if !defined(SQLITE_WIN32_GETVERSIONEX) || !SQLITE_WIN32_GETVERSIONEX
+# define osIsNT()  (1)
+#elif SQLITE_OS_WINCE || SQLITE_OS_WINRT || !defined(SQLITE_WIN32_HAS_ANSI)
 # define osIsNT()  (1)
 #elif !defined(SQLITE_WIN32_HAS_WIDE)
 # define osIsNT()  (0)
@@ -1401,14 +1430,20 @@ static int winMemInit(void *pAppData){

 #if !SQLITE_OS_WINRT && SQLITE_WIN32_HEAP_CREATE
  if( !pWinMemData->hHeap ){
+    DWORD dwInitialSize = SQLITE_WIN32_HEAP_INIT_SIZE;
+    DWORD dwMaximumSize = (DWORD)sqlite3GlobalConfig.nHeap;
+    if( dwMaximumSize==0 ){
+      dwMaximumSize = SQLITE_WIN32_HEAP_MAX_SIZE;
+    }else if( dwInitialSize>dwMaximumSize ){
+      dwInitialSize = dwMaximumSize;
+    }
    pWinMemData->hHeap = osHeapCreate(SQLITE_WIN32_HEAP_FLAGS,
-                                      SQLITE_WIN32_HEAP_INIT_SIZE,
-                                      SQLITE_WIN32_HEAP_MAX_SIZE);
+                                      dwInitialSize, dwMaximumSize);
    if( !pWinMemData->hHeap ){
      sqlite3_log(SQLITE_NOMEM,
-          "failed to HeapCreate (%lu), flags=%u, initSize=%u, maxSize=%u",
-          osGetLastError(), SQLITE_WIN32_HEAP_FLAGS,
-          SQLITE_WIN32_HEAP_INIT_SIZE, SQLITE_WIN32_HEAP_MAX_SIZE);
+          "failed to HeapCreate (%lu), flags=%u, initSize=%lu, maxSize=%lu",
+          osGetLastError(), SQLITE_WIN32_HEAP_FLAGS, dwInitialSize,
+          dwMaximumSize);
      return SQLITE_NOMEM;
    }
    pWinMemData->bOwned = TRUE;
@@ -3084,7 +3119,7 @@ static int winFileControl(sqlite3_file *id, int op, void *pArg){
      return SQLITE_OK;
    }
    case SQLITE_FCNTL_VFSNAME: {
-      *(char**)pArg = sqlite3_mprintf("win32");
+      *(char**)pArg = sqlite3_mprintf("%s", pFile->pVfs->zName);
      OSTRACE(("FCNTL file=%p, rc=SQLITE_OK\n", pFile->h));
      return SQLITE_OK;
    }
@@ -4068,7 +4103,7 @@ static const sqlite3_io_methods winIoMethod = {
 ** sqlite3_vfs object.
 */

-#if 0
+#if defined(__CYGWIN__)
 /*
 ** Convert a filename from whatever the underlying operating system
 ** supports for filenames into UTF-8.  Space to hold the result is
@@ -4244,23 +4279,17 @@ static int winGetTempname(sqlite3_vfs *pVfs, char **pzBuf){
          ** be used.  However, we may need to convert the string containing
          ** its name into UTF-8 (i.e. if it is UTF-16 right now).
          */
-          if( osIsNT() ){
-            char *zUtf8 = winUnicodeToUtf8(zConverted);
-            if( !zUtf8 ){
-              sqlite3_free(zConverted);
-              sqlite3_free(zBuf);
-              OSTRACE(("TEMP-FILENAME rc=SQLITE_IOERR_NOMEM\n"));
-              return SQLITE_IOERR_NOMEM;
-            }
-            sqlite3_snprintf(nMax, zBuf, "%s", zUtf8);
-            sqlite3_free(zUtf8);
+          char *zUtf8 = winConvertToUtf8Filename(zConverted);
+          if( !zUtf8 ){
            sqlite3_free(zConverted);
-            break;
-          }else{
-            sqlite3_snprintf(nMax, zBuf, "%s", zConverted);
-            sqlite3_free(zConverted);
-            break;
+            sqlite3_free(zBuf);
+            OSTRACE(("TEMP-FILENAME rc=SQLITE_IOERR_NOMEM\n"));
+            return SQLITE_IOERR_NOMEM;
          }
+          sqlite3_snprintf(nMax, zBuf, "%s", zUtf8);
+          sqlite3_free(zUtf8);
+          sqlite3_free(zConverted);
+          break;
        }
        sqlite3_free(zConverted);
      }
@@ -4945,19 +4974,43 @@ static int winFullPathname(
    if( !zOut ){
      return SQLITE_IOERR_NOMEM;
    }
-    if( cygwin_conv_path(CCP_POSIX_TO_WIN_A|CCP_RELATIVE, zRelative, zOut,
-                         pVfs->mxPathname+1)<0 ){
+    if( cygwin_conv_path(
+            (osIsNT() ? CCP_POSIX_TO_WIN_W : CCP_POSIX_TO_WIN_A) |
+            CCP_RELATIVE, zRelative, zOut, pVfs->mxPathname+1)<0 ){
      sqlite3_free(zOut);
      return winLogError(SQLITE_CANTOPEN_CONVPATH, (DWORD)errno,
                         "winFullPathname1", zRelative);
+    }else{
+      char *zUtf8 = winConvertToUtf8Filename(zOut);
+      if( !zUtf8 ){
+        sqlite3_free(zOut);
+        return SQLITE_IOERR_NOMEM;
+      }
+      sqlite3_snprintf(MIN(nFull, pVfs->mxPathname), zFull, "%s%c%s",
+                       sqlite3_data_directory, winGetDirSep(), zUtf8);
+      sqlite3_free(zUtf8);
+      sqlite3_free(zOut);
    }
-    sqlite3_snprintf(MIN(nFull, pVfs->mxPathname), zFull, "%s%c%s",
-                     sqlite3_data_directory, winGetDirSep(), zOut);
-    sqlite3_free(zOut);
  }else{
-    if( cygwin_conv_path(CCP_POSIX_TO_WIN_A, zRelative, zFull, nFull)<0 ){
+    char *zOut = sqlite3MallocZero( pVfs->mxPathname+1 );
+    if( !zOut ){
+      return SQLITE_IOERR_NOMEM;
+    }
+    if( cygwin_conv_path(
+            (osIsNT() ? CCP_POSIX_TO_WIN_W : CCP_POSIX_TO_WIN_A),
+            zRelative, zOut, pVfs->mxPathname+1)<0 ){
+      sqlite3_free(zOut);
      return winLogError(SQLITE_CANTOPEN_CONVPATH, (DWORD)errno,
                         "winFullPathname2", zRelative);
+    }else{
+      char *zUtf8 = winConvertToUtf8Filename(zOut);
+      if( !zUtf8 ){
+        sqlite3_free(zOut);
+        return SQLITE_IOERR_NOMEM;
+      }
+      sqlite3_snprintf(MIN(nFull, pVfs->mxPathname), zFull, "%s", zUtf8);
+      sqlite3_free(zUtf8);
+      sqlite3_free(zOut);
    }
  }
  return SQLITE_OK;
@@ -1024,15 +1024,12 @@ static char *print_pager_state(Pager *p){
 static int subjRequiresPage(PgHdr *pPg){
  Pager *pPager = pPg->pPager;
  PagerSavepoint *p;
-  Pgno pgno;
+  Pgno pgno = pPg->pgno;
  int i;
-  if( pPager->nSavepoint ){
-    pgno = pPg->pgno;
-    for(i=0; i<pPager->nSavepoint; i++){
-      p = &pPager->aSavepoint[i];
-      if( p->nOrig>=pgno && 0==sqlite3BitvecTest(p->pInSavepoint, pgno) ){
-        return 1;
-      }
+  for(i=0; i<pPager->nSavepoint; i++){
+    p = &pPager->aSavepoint[i];
+    if( p->nOrig>=pgno && 0==sqlite3BitvecTest(p->pInSavepoint, pgno) ){
+      return 1;
    }
  }
  return 0;
@@ -1041,8 +1038,8 @@ static int subjRequiresPage(PgHdr *pPg){
 /*
 ** Return true if the page is already in the journal file.
 */
-static int pageInJournal(PgHdr *pPg){
-  return sqlite3BitvecTest(pPg->pPager->pInJournal, pPg->pgno);
+static int pageInJournal(Pager *pPager, PgHdr *pPg){
+  return sqlite3BitvecTest(pPager->pInJournal, pPg->pgno);
 }

 /*
@@ -1249,6 +1246,7 @@ static int readMasterJournal(sqlite3_file *pJrnl, char *zMaster, u32 nMaster){
   || szJ<16
   || SQLITE_OK!=(rc = read32bits(pJrnl, szJ-16, &len))
   || len>=nMaster 
+   || len==0 
   || SQLITE_OK!=(rc = read32bits(pJrnl, szJ-12, &cksum))
   || SQLITE_OK!=(rc = sqlite3OsRead(pJrnl, aMagic, 8, szJ-8))
   || memcmp(aMagic, aJournalMagic, 8)
@@ -1989,7 +1987,7 @@ static int pager_end_transaction(Pager *pPager, int hasMaster, int bCommit){
    PgHdr *p = pager_lookup(pPager, 1);
    if( p ){
      p->pageHash = 0;
-      sqlite3PagerUnref(p);
+      sqlite3PagerUnrefNotNull(p);
    }
  }
 #endif
@@ -2018,6 +2016,11 @@ static int pager_end_transaction(Pager *pPager, int hasMaster, int bCommit){
    rc = pager_truncate(pPager, pPager->dbSize);
  }

+  if( rc==SQLITE_OK && bCommit && isOpen(pPager->fd) ){
+    rc = sqlite3OsFileControl(pPager->fd, SQLITE_FCNTL_COMMIT_PHASETWO, 0);
+    if( rc==SQLITE_NOTFOUND ) rc = SQLITE_OK;
+  }
+
  if( !pPager->exclusiveMode 
   && (!pagerUseWal(pPager) || sqlite3WalExclusiveMode(pPager->pWal, 0))
  ){
@@ -2831,7 +2834,7 @@ end_playback:
  if( rc==SQLITE_OK
   && (pPager->eState>=PAGER_WRITER_DBMOD || pPager->eState==PAGER_OPEN)
  ){
-    rc = sqlite3PagerSync(pPager);
+    rc = sqlite3PagerSync(pPager, 0);
  }
  if( rc==SQLITE_OK ){
    rc = pager_end_transaction(pPager, zMaster[0]!='\0', 0);
@@ -2977,7 +2980,7 @@ static int pagerUndoCallback(void *pCtx, Pgno iPg){
      if( rc==SQLITE_OK ){
        pPager->xReiniter(pPg);
      }
-      sqlite3PagerUnref(pPg);
+      sqlite3PagerUnrefNotNull(pPg);
    }
  }

@@ -4332,7 +4335,7 @@ static int subjournalPage(PgHdr *pPg){
    assert( isOpen(pPager->jfd) || pagerUseWal(pPager) );
    assert( isOpen(pPager->sjfd) || pPager->nSubRec==0 );
    assert( pagerUseWal(pPager) 
-         || pageInJournal(pPg) 
+         || pageInJournal(pPager, pPg) 
         || pPg->pgno>pPager->dbOrigSize 
    );
    rc = openSubJournal(pPager);
@@ -4797,6 +4800,30 @@ int sqlite3PagerOpen(
 }


+/* Verify that the database file has not be deleted or renamed out from
+** under the pager.  Return SQLITE_OK if the database is still were it ought
+** to be on disk.  Return non-zero (SQLITE_READONLY_DBMOVED or some other error
+** code from sqlite3OsAccess()) if the database has gone missing.
+*/
+static int databaseIsUnmoved(Pager *pPager){
+  int bHasMoved = 0;
+  int rc;
+
+  if( pPager->tempFile ) return SQLITE_OK;
+  if( pPager->dbSize==0 ) return SQLITE_OK;
+  assert( pPager->zFilename && pPager->zFilename[0] );
+  rc = sqlite3OsFileControl(pPager->fd, SQLITE_FCNTL_HAS_MOVED, &bHasMoved);
+  if( rc==SQLITE_NOTFOUND ){
+    /* If the HAS_MOVED file-control is unimplemented, assume that the file
+    ** has not been moved.  That is the historical behavior of SQLite: prior to
+    ** version 3.8.3, it never checked */
+    rc = SQLITE_OK;
+  }else if( rc==SQLITE_OK && bHasMoved ){
+    rc = SQLITE_READONLY_DBMOVED;
+  }
+  return rc;
+}
+

 /*
 ** This function is called after transitioning from PAGER_UNLOCK to
@@ -5268,7 +5295,7 @@ int sqlite3PagerAcquire(
      if( rc!=SQLITE_OK ) goto pager_acquire_err;
    }

-    if( iFrame==0 && bMmapOk ){
+    if( bMmapOk && iFrame==0 ){
      void *pData = 0;

      rc = sqlite3OsFetch(pPager->fd, 
@@ -5409,16 +5436,19 @@ DbPage *sqlite3PagerLookup(Pager *pPager, Pgno pgno){
 ** are released, a rollback occurs and the lock on the database is
 ** removed.
 */
-void sqlite3PagerUnref(DbPage *pPg){
-  if( pPg ){
-    Pager *pPager = pPg->pPager;
-    if( pPg->flags & PGHDR_MMAP ){
-      pagerReleaseMapPage(pPg);
-    }else{
-      sqlite3PcacheRelease(pPg);
-    }
-    pagerUnlockIfUnused(pPager);
+void sqlite3PagerUnrefNotNull(DbPage *pPg){
+  Pager *pPager;
+  assert( pPg!=0 );
+  pPager = pPg->pPager;
+  if( pPg->flags & PGHDR_MMAP ){
+    pagerReleaseMapPage(pPg);
+  }else{
+    sqlite3PcacheRelease(pPg);
  }
+  pagerUnlockIfUnused(pPager);
+}
+void sqlite3PagerUnref(DbPage *pPg){
+  if( pPg ) sqlite3PagerUnrefNotNull(pPg);
 }

 /*
@@ -5473,13 +5503,19 @@ static int pager_open_journal(Pager *pPager){
            (SQLITE_OPEN_DELETEONCLOSE|SQLITE_OPEN_TEMP_JOURNAL):
            (SQLITE_OPEN_MAIN_JOURNAL)
          );
-  #ifdef SQLITE_ENABLE_ATOMIC_WRITE
-        rc = sqlite3JournalOpen(
-            pVfs, pPager->zJournal, pPager->jfd, flags, jrnlBufferSize(pPager)
-        );
-  #else
-        rc = sqlite3OsOpen(pVfs, pPager->zJournal, pPager->jfd, flags, 0);
-  #endif
+
+        /* Verify that the database still has the same name as it did when
+        ** it was originally opened. */
+        rc = databaseIsUnmoved(pPager);
+        if( rc==SQLITE_OK ){
+#ifdef SQLITE_ENABLE_ATOMIC_WRITE
+          rc = sqlite3JournalOpen(
+              pVfs, pPager->zJournal, pPager->jfd, flags, jrnlBufferSize(pPager)
+          );
+#else
+          rc = sqlite3OsOpen(pVfs, pPager->zJournal, pPager->jfd, flags, 0);
+#endif
+        }
      }
      assert( rc!=SQLITE_OK || isOpen(pPager->jfd) );
    }
@@ -5600,9 +5636,9 @@ int sqlite3PagerBegin(Pager *pPager, int exFlag, int subjInMemory){
 ** of any open savepoints as appropriate.
 */
 static int pager_write(PgHdr *pPg){
-  void *pData = pPg->pData;
  Pager *pPager = pPg->pPager;
  int rc = SQLITE_OK;
+  int inJournal;

  /* This routine is not called unless a write-transaction has already 
  ** been started. The journal file may or may not be open at this point.
@@ -5613,14 +5649,8 @@ static int pager_write(PgHdr *pPg){
       || pPager->eState==PAGER_WRITER_DBMOD
  );
  assert( assert_pager_state(pPager) );
-
-  /* If an error has been previously detected, report the same error
-  ** again. This should not happen, but the check provides robustness. */
-  if( NEVER(pPager->errCode) )  return pPager->errCode;
-
-  /* Higher-level routines never call this function if database is not
-  ** writable.  But check anyway, just for robustness. */
-  if( NEVER(pPager->readOnly) ) return SQLITE_PERM;
+  assert( pPager->errCode==0 );
+  assert( pPager->readOnly==0 );

  CHECK_PAGE(pPg);

@@ -5644,7 +5674,8 @@ static int pager_write(PgHdr *pPg){
  ** to the journal then we can return right away.
  */
  sqlite3PcacheMakeDirty(pPg);
-  if( pageInJournal(pPg) && !subjRequiresPage(pPg) ){
+  inJournal = pageInJournal(pPager, pPg);
+  if( inJournal && (pPager->nSavepoint==0 || !subjRequiresPage(pPg)) ){
    assert( !pagerUseWal(pPager) );
  }else{
  
@@ -5652,7 +5683,7 @@ static int pager_write(PgHdr *pPg){
    ** EXCLUSIVE lock on the main database file.  Write the current page to
    ** the transaction journal if it is not there already.
    */
-    if( !pageInJournal(pPg) && !pagerUseWal(pPager) ){
+    if( !inJournal && !pagerUseWal(pPager) ){
      assert( pagerUseWal(pPager)==0 );
      if( pPg->pgno<=pPager->dbOrigSize && isOpen(pPager->jfd) ){
        u32 cksum;
@@ -5665,7 +5696,7 @@ static int pager_write(PgHdr *pPg){
        assert( pPg->pgno!=PAGER_MJ_PGNO(pPager) );

        assert( pPager->journalHdr<=pPager->journalOff );
-        CODEC2(pPager, pData, pPg->pgno, 7, return SQLITE_NOMEM, pData2);
+        CODEC2(pPager, pPg->pData, pPg->pgno, 7, return SQLITE_NOMEM, pData2);
        cksum = pager_cksum(pPager, (u8*)pData2);

        /* Even if an IO or diskfull error occurs while journalling the
@@ -5717,7 +5748,7 @@ static int pager_write(PgHdr *pPg){
    ** the statement journal format differs from the standard journal format
    ** in that it omits the checksums and the header.
    */
-    if( subjRequiresPage(pPg) ){
+    if( pPager->nSavepoint>0 && subjRequiresPage(pPg) ){
      rc = subjournalPage(pPg);
    }
  }
@@ -5749,19 +5780,19 @@ int sqlite3PagerWrite(DbPage *pDbPage){

  PgHdr *pPg = pDbPage;
  Pager *pPager = pPg->pPager;
-  Pgno nPagePerSector = (pPager->sectorSize/pPager->pageSize);

  assert( (pPg->flags & PGHDR_MMAP)==0 );
  assert( pPager->eState>=PAGER_WRITER_LOCKED );
  assert( pPager->eState!=PAGER_ERROR );
  assert( assert_pager_state(pPager) );

-  if( nPagePerSector>1 ){
+  if( pPager->sectorSize > (u32)pPager->pageSize ){
    Pgno nPageCount;          /* Total number of pages in database file */
    Pgno pg1;                 /* First page of the sector pPg is located on. */
    int nPage = 0;            /* Number of pages starting at pg1 to journal */
    int ii;                   /* Loop counter */
    int needSync = 0;         /* True if any page has PGHDR_NEED_SYNC */
+    Pgno nPagePerSector = (pPager->sectorSize/pPager->pageSize);

    /* Set the doNotSpill NOSYNC bit to 1. This is because we cannot allow
    ** a journal header to be written between the pages journaled by
@@ -5800,14 +5831,14 @@ int sqlite3PagerWrite(DbPage *pDbPage){
            if( pPage->flags&PGHDR_NEED_SYNC ){
              needSync = 1;
            }
-            sqlite3PagerUnref(pPage);
+            sqlite3PagerUnrefNotNull(pPage);
          }
        }
      }else if( (pPage = pager_lookup(pPager, pg))!=0 ){
        if( pPage->flags&PGHDR_NEED_SYNC ){
          needSync = 1;
        }
-        sqlite3PagerUnref(pPage);
+        sqlite3PagerUnrefNotNull(pPage);
      }
    }

@@ -5823,7 +5854,7 @@ int sqlite3PagerWrite(DbPage *pDbPage){
        PgHdr *pPage = pager_lookup(pPager, pg1+ii);
        if( pPage ){
          pPage->flags |= PGHDR_NEED_SYNC;
-          sqlite3PagerUnref(pPage);
+          sqlite3PagerUnrefNotNull(pPage);
        }
      }
    }
@@ -5976,17 +6007,17 @@ static int pager_incr_changecounter(Pager *pPager, int isDirectMode){
 ** If successful, or if called on a pager for which it is a no-op, this
 ** function returns SQLITE_OK. Otherwise, an IO error code is returned.
 */
-int sqlite3PagerSync(Pager *pPager){
+int sqlite3PagerSync(Pager *pPager, const char *zMaster){
  int rc = SQLITE_OK;
-  if( !pPager->noSync ){
+
+  if( isOpen(pPager->fd) ){
+    void *pArg = (void*)zMaster;
+    rc = sqlite3OsFileControl(pPager->fd, SQLITE_FCNTL_SYNC, pArg);
+    if( rc==SQLITE_NOTFOUND ) rc = SQLITE_OK;
+  }
+  if( rc==SQLITE_OK && !pPager->noSync ){
    assert( !MEMDB );
    rc = sqlite3OsSync(pPager->fd, pPager->syncFlags);
-  }else if( isOpen(pPager->fd) ){
-    assert( !MEMDB );
-    rc = sqlite3OsFileControl(pPager->fd, SQLITE_FCNTL_SYNC_OMITTED, 0);
-    if( rc==SQLITE_NOTFOUND ){
-      rc = SQLITE_OK;
-    }
  }
  return rc;
 }
@@ -6185,7 +6216,7 @@ int sqlite3PagerCommitPhaseOne(
  
      /* Finally, sync the database file. */
      if( !noSync ){
-        rc = sqlite3PagerSync(pPager);
+        rc = sqlite3PagerSync(pPager, zMaster);
      }
      IOTRACE(("DBSYNC %p\n", pPager))
    }
@@ -6314,7 +6345,9 @@ int sqlite3PagerRollback(Pager *pPager){

  assert( pPager->eState==PAGER_READER || rc!=SQLITE_OK );
  assert( rc==SQLITE_OK || rc==SQLITE_FULL || rc==SQLITE_CORRUPT
-          || rc==SQLITE_NOMEM || (rc&0xFF)==SQLITE_IOERR );
+          || rc==SQLITE_NOMEM || (rc&0xFF)==SQLITE_IOERR 
+          || rc==SQLITE_CANTOPEN
+  );

  /* If an error occurs during a ROLLBACK, we can no longer trust the pager
  ** cache. So call pager_error() on the way out to make any error persistent.
@@ -6717,7 +6750,7 @@ int sqlite3PagerMovepage(Pager *pPager, DbPage *pPg, Pgno pgno, int isCommit){
  if( (pPg->flags&PGHDR_NEED_SYNC) && !isCommit ){
    needSyncPgno = pPg->pgno;
    assert( pPager->journalMode==PAGER_JOURNALMODE_OFF ||
-            pageInJournal(pPg) || pPg->pgno>pPager->dbOrigSize );
+            pageInJournal(pPager, pPg) || pPg->pgno>pPager->dbOrigSize );
    assert( pPg->flags&PGHDR_DIRTY );
  }

@@ -6751,7 +6784,7 @@ int sqlite3PagerMovepage(Pager *pPager, DbPage *pPg, Pgno pgno, int isCommit){
  if( MEMDB ){
    assert( pPgOld );
    sqlite3PcacheMove(pPgOld, origPgno);
-    sqlite3PagerUnref(pPgOld);
+    sqlite3PagerUnrefNotNull(pPgOld);
  }

  if( needSyncPgno ){
@@ -6780,7 +6813,7 @@ int sqlite3PagerMovepage(Pager *pPager, DbPage *pPg, Pgno pgno, int isCommit){
    }
    pPgHdr->flags |= PGHDR_NEED_SYNC;
    sqlite3PcacheMakeDirty(pPgHdr);
-    sqlite3PagerUnref(pPgHdr);
+    sqlite3PagerUnrefNotNull(pPgHdr);
  }

  return SQLITE_OK;
@@ -136,6 +136,7 @@ int sqlite3PagerAcquire(Pager *pPager, Pgno pgno, DbPage **ppPage, int clrFlag);
 DbPage *sqlite3PagerLookup(Pager *pPager, Pgno pgno);
 void sqlite3PagerRef(DbPage*);
 void sqlite3PagerUnref(DbPage*);
+void sqlite3PagerUnrefNotNull(DbPage*);

 /* Operations on page references. */
 int sqlite3PagerWrite(DbPage*);
@@ -150,7 +151,7 @@ void sqlite3PagerPagecount(Pager*, int*);
 int sqlite3PagerBegin(Pager*, int exFlag, int);
 int sqlite3PagerCommitPhaseOne(Pager*,const char *zMaster, int);
 int sqlite3PagerExclusiveLock(Pager*);
-int sqlite3PagerSync(Pager *pPager);
+int sqlite3PagerSync(Pager *pPager, const char *zMaster);
 int sqlite3PagerCommitPhaseTwo(Pager*);
 int sqlite3PagerRollback(Pager*);
 int sqlite3PagerOpenSavepoint(Pager *pPager, int n);
@@ -854,12 +854,7 @@ expr(A) ::= ID(X) LP STAR RP(E). {
  spanSet(&A,&X,&E);
 }
 term(A) ::= CTIME_KW(OP). {
-  /* The CURRENT_TIME, CURRENT_DATE, and CURRENT_TIMESTAMP values are
-  ** treated as functions that return constants */
-  A.pExpr = sqlite3ExprFunction(pParse, 0,&OP);
-  if( A.pExpr ){
-    A.pExpr->op = TK_CONST_FUNC;  
-  }
+  A.pExpr = sqlite3ExprFunction(pParse, 0, &OP);
  spanSet(&A, &OP, &OP);
 }

@@ -96,6 +96,7 @@ struct PCache1 {
 struct PgHdr1 {
  sqlite3_pcache_page page;
  unsigned int iKey;             /* Key value (page number) */
+  u8 isPinned;                   /* Page in use, not on the LRU list */
  PgHdr1 *pNext;                 /* Next in hash table chain */
  PCache1 *pCache;               /* Cache that currently owns this page */
  PgHdr1 *pLruNext;              /* Next in LRU list of unpinned pages */
@@ -424,34 +425,32 @@ static int pcache1ResizeHash(PCache1 *p){
 ** LRU list, then this function is a no-op.
 **
 ** The PGroup mutex must be held when this function is called.
-**
-** If pPage is NULL then this routine is a no-op.
 */
 static void pcache1PinPage(PgHdr1 *pPage){
  PCache1 *pCache;
  PGroup *pGroup;

-  if( pPage==0 ) return;
+  assert( pPage!=0 );
+  assert( pPage->isPinned==0 );
  pCache = pPage->pCache;
  pGroup = pCache->pGroup;
+  assert( pPage->pLruNext || pPage==pGroup->pLruTail );
+  assert( pPage->pLruPrev || pPage==pGroup->pLruHead );
  assert( sqlite3_mutex_held(pGroup->mutex) );
-  if( pPage->pLruNext || pPage==pGroup->pLruTail ){
-    if( pPage->pLruPrev ){
-      pPage->pLruPrev->pLruNext = pPage->pLruNext;
-    }
-    if( pPage->pLruNext ){
-      pPage->pLruNext->pLruPrev = pPage->pLruPrev;
-    }
-    if( pGroup->pLruHead==pPage ){
-      pGroup->pLruHead = pPage->pLruNext;
-    }
-    if( pGroup->pLruTail==pPage ){
-      pGroup->pLruTail = pPage->pLruPrev;
-    }
-    pPage->pLruNext = 0;
-    pPage->pLruPrev = 0;
-    pPage->pCache->nRecyclable--;
+  if( pPage->pLruPrev ){
+    pPage->pLruPrev->pLruNext = pPage->pLruNext;
+  }else{
+    pGroup->pLruHead = pPage->pLruNext;
  }
+  if( pPage->pLruNext ){
+    pPage->pLruNext->pLruPrev = pPage->pLruPrev;
+  }else{
+    pGroup->pLruTail = pPage->pLruPrev;
+  }
+  pPage->pLruNext = 0;
+  pPage->pLruPrev = 0;
+  pPage->isPinned = 1;
+  pCache->nRecyclable--;
 }


@@ -483,6 +482,7 @@ static void pcache1EnforceMaxPage(PGroup *pGroup){
  while( pGroup->nCurrentPage>pGroup->nMaxPage && pGroup->pLruTail ){
    PgHdr1 *p = pGroup->pLruTail;
    assert( p->pCache->pGroup==pGroup );
+    assert( p->isPinned==0 );
    pcache1PinPage(p);
    pcache1RemoveFromHash(p);
    pcache1FreePage(p);
@@ -510,7 +510,7 @@ static void pcache1TruncateUnsafe(
      if( pPage->iKey>=iLimit ){
        pCache->nPage--;
        *pp = pPage->pNext;
-        pcache1PinPage(pPage);
+        if( !pPage->isPinned ) pcache1PinPage(pPage);
        pcache1FreePage(pPage);
      }else{
        pp = &pPage->pNext;
@@ -733,8 +733,11 @@ static sqlite3_pcache_page *pcache1Fetch(
  }

  /* Step 2: Abort if no existing page is found and createFlag is 0 */
-  if( pPage || createFlag==0 ){
-    pcache1PinPage(pPage);
+  if( pPage ){
+    if( !pPage->isPinned ) pcache1PinPage(pPage);
+    goto fetch_out;
+  }
+  if( createFlag==0 ){
    goto fetch_out;
  }

@@ -775,6 +778,7 @@ static sqlite3_pcache_page *pcache1Fetch(
  )){
    PCache1 *pOther;
    pPage = pGroup->pLruTail;
+    assert( pPage->isPinned==0 );
    pcache1RemoveFromHash(pPage);
    pcache1PinPage(pPage);
    pOther = pPage->pCache;
@@ -811,6 +815,7 @@ static sqlite3_pcache_page *pcache1Fetch(
    pPage->pCache = pCache;
    pPage->pLruPrev = 0;
    pPage->pLruNext = 0;
+    pPage->isPinned = 1;
    *(void **)pPage->page.pExtra = 0;
    pCache->apHash[h] = pPage;
  }
@@ -846,6 +851,7 @@ static void pcache1Unpin(
  */
  assert( pPage->pLruPrev==0 && pPage->pLruNext==0 );
  assert( pGroup->pLruHead!=pPage && pGroup->pLruTail!=pPage );
+  assert( pPage->isPinned==1 );

  if( reuseUnlikely || pGroup->nCurrentPage>pGroup->nMaxPage ){
    pcache1RemoveFromHash(pPage);
@@ -861,6 +867,7 @@ static void pcache1Unpin(
      pGroup->pLruHead = pPage;
    }
    pCache->nRecyclable++;
+    pPage->isPinned = 0;
  }

  pcache1LeaveMutex(pCache->pGroup);
@@ -987,6 +994,7 @@ int sqlite3PcacheReleaseMemory(int nReq){
 #ifdef SQLITE_PCACHE_SEPARATE_HEADER
      nFree += sqlite3MemSize(p);
 #endif
+      assert( p->isPinned==0 );
      pcache1PinPage(p);
      pcache1RemoveFromHash(p);
      pcache1FreePage(p);
@@ -1011,6 +1019,7 @@ void sqlite3PcacheStats(
  PgHdr1 *p;
  int nRecyclable = 0;
  for(p=pcache1.grp.pLruHead; p; p=p->pLruNext){
+    assert( p->isPinned==0 );
    nRecyclable++;
  }
  *pnCurrent = pcache1.grp.nCurrentPage;
@@ -1891,7 +1891,7 @@ void sqlite3Pragma(
        sqlite3VdbeJumpHere(v, addr);
        sqlite3ExprCacheClear(pParse);
        sqlite3OpenTableAndIndices(pParse, pTab, OP_OpenRead,
-                                   1, &iDataCur, &iIdxCur);
+                                   1, 0, &iDataCur, &iIdxCur);
        sqlite3VdbeAddOp2(v, OP_Integer, 0, 7);
        for(j=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, j++){
          sqlite3VdbeAddOp2(v, OP_Integer, 0, 8+j); /* index entries counter */
@@ -148,6 +148,31 @@ void sqlite3AppendSpace(StrAccum *pAccum, int N){
  }
 }

+/*
+** Set the StrAccum object to an error mode.
+*/
+static void setStrAccumError(StrAccum *p, u8 eError){
+  p->accError = eError;
+  p->nAlloc = 0;
+}
+
+/*
+** Extra argument values from a PrintfArguments object
+*/
+static sqlite3_int64 getIntArg(PrintfArguments *p){
+  if( p->nArg<=p->nUsed ) return 0;
+  return sqlite3_value_int64(p->apArg[p->nUsed++]);
+}
+static double getDoubleArg(PrintfArguments *p){
+  if( p->nArg<=p->nUsed ) return 0.0;
+  return sqlite3_value_double(p->apArg[p->nUsed++]);
+}
+static char *getTextArg(PrintfArguments *p){
+  if( p->nArg<=p->nUsed ) return 0;
+  return (char*)sqlite3_value_text(p->apArg[p->nUsed++]);
+}
+
+
 /*
 ** On machines with a small stack size, you can redefine the
 ** SQLITE_PRINT_BUF_SIZE to be something smaller, if desired.
@@ -161,10 +186,10 @@ void sqlite3AppendSpace(StrAccum *pAccum, int N){
 ** Render a string given by "fmt" into the StrAccum object.
 */
 void sqlite3VXPrintf(
-  StrAccum *pAccum,                  /* Accumulate results here */
-  int useExtended,                   /* Allow extended %-conversions */
-  const char *fmt,                   /* Format string */
-  va_list ap                         /* arguments */
+  StrAccum *pAccum,          /* Accumulate results here */
+  u32 bFlags,                /* SQLITE_PRINTF_* flags */
+  const char *fmt,           /* Format string */
+  va_list ap                 /* arguments */
 ){
  int c;                     /* Next character in the format string */
  char *bufpt;               /* Pointer to the conversion buffer */
@@ -182,6 +207,8 @@ void sqlite3VXPrintf(
  etByte flag_longlong;      /* True if the "ll" flag is present */
  etByte done;               /* Loop termination flag */
  etByte xtype = 0;          /* Conversion paradigm */
+  u8 bArgList;               /* True for SQLITE_PRINTF_SQLFUNC */
+  u8 useIntern;              /* Ok to use internal conversions (ex: %T) */
  char prefix;               /* Prefix character.  "+" or "-" or " " or '\0'. */
  sqlite_uint64 longvalue;   /* Value for integer types */
  LONGDOUBLE_TYPE realvalue; /* Value for real types */
@@ -196,9 +223,18 @@ void sqlite3VXPrintf(
  etByte flag_dp;            /* True if decimal point should be shown */
  etByte flag_rtz;           /* True if trailing zeros should be removed */
 #endif
+  PrintfArguments *pArgList = 0; /* Arguments for SQLITE_PRINTF_SQLFUNC */
  char buf[etBUFSIZE];       /* Conversion buffer */

  bufpt = 0;
+  if( bFlags ){
+    if( (bArgList = (bFlags & SQLITE_PRINTF_SQLFUNC))!=0 ){
+      pArgList = va_arg(ap, PrintfArguments*);
+    }
+    useIntern = bFlags & SQLITE_PRINTF_INTERNAL;
+  }else{
+    bArgList = useIntern = 0;
+  }
  for(; (c=(*fmt))!=0; ++fmt){
    if( c!='%' ){
      int amt;
@@ -230,7 +266,11 @@ void sqlite3VXPrintf(
    /* Get the field width */
    width = 0;
    if( c=='*' ){
-      width = va_arg(ap,int);
+      if( bArgList ){
+        width = (int)getIntArg(pArgList);
+      }else{
+        width = va_arg(ap,int);
+      }
      if( width<0 ){
        flag_leftjustify = 1;
        width = -width;
@@ -247,7 +287,11 @@ void sqlite3VXPrintf(
      precision = 0;
      c = *++fmt;
      if( c=='*' ){
-        precision = va_arg(ap,int);
+        if( bArgList ){
+          precision = (int)getIntArg(pArgList);
+        }else{
+          precision = va_arg(ap,int);
+        }
        if( precision<0 ) precision = -precision;
        c = *++fmt;
      }else{
@@ -278,7 +322,7 @@ void sqlite3VXPrintf(
    for(idx=0; idx<ArraySize(fmtinfo); idx++){
      if( c==fmtinfo[idx].fmttype ){
        infop = &fmtinfo[idx];
-        if( useExtended || (infop->flags & FLAG_INTERN)==0 ){
+        if( useIntern || (infop->flags & FLAG_INTERN)==0 ){
          xtype = infop->type;
        }else{
          return;
@@ -318,7 +362,9 @@ void sqlite3VXPrintf(
      case etRADIX:
        if( infop->flags & FLAG_SIGNED ){
          i64 v;
-          if( flag_longlong ){
+          if( bArgList ){
+            v = getIntArg(pArgList);
+          }else if( flag_longlong ){
            v = va_arg(ap,i64);
          }else if( flag_long ){
            v = va_arg(ap,long int);
@@ -339,7 +385,9 @@ void sqlite3VXPrintf(
            else                       prefix = 0;
          }
        }else{
-          if( flag_longlong ){
+          if( bArgList ){
+            longvalue = (u64)getIntArg(pArgList);
+          }else if( flag_longlong ){
            longvalue = va_arg(ap,u64);
          }else if( flag_long ){
            longvalue = va_arg(ap,unsigned long int);
@@ -359,7 +407,7 @@ void sqlite3VXPrintf(
          nOut = precision + 10;
          zOut = zExtra = sqlite3Malloc( nOut );
          if( zOut==0 ){
-            pAccum->accError = STRACCUM_NOMEM;
+            setStrAccumError(pAccum, STRACCUM_NOMEM);
            return;
          }
        }
@@ -399,7 +447,11 @@ void sqlite3VXPrintf(
      case etFLOAT:
      case etEXP:
      case etGENERIC:
-        realvalue = va_arg(ap,double);
+        if( bArgList ){
+          realvalue = getDoubleArg(pArgList);
+        }else{
+          realvalue = va_arg(ap,double);
+        }
 #ifdef SQLITE_OMIT_FLOATING_POINT
        length = 0;
 #else
@@ -471,7 +523,7 @@ void sqlite3VXPrintf(
        if( MAX(e2,0)+precision+width > etBUFSIZE - 15 ){
          bufpt = zExtra = sqlite3Malloc( MAX(e2,0)+precision+width+15 );
          if( bufpt==0 ){
-            pAccum->accError = STRACCUM_NOMEM;
+            setStrAccumError(pAccum, STRACCUM_NOMEM);
            return;
          }
        }
@@ -554,7 +606,9 @@ void sqlite3VXPrintf(
 #endif /* !defined(SQLITE_OMIT_FLOATING_POINT) */
        break;
      case etSIZE:
-        *(va_arg(ap,int*)) = pAccum->nChar;
+        if( !bArgList ){
+          *(va_arg(ap,int*)) = pAccum->nChar;
+        }
        length = width = 0;
        break;
      case etPERCENT:
@@ -563,7 +617,12 @@ void sqlite3VXPrintf(
        length = 1;
        break;
      case etCHARX:
-        c = va_arg(ap,int);
+        if( bArgList ){
+          bufpt = getTextArg(pArgList);
+          c = bufpt ? bufpt[0] : 0;
+        }else{
+          c = va_arg(ap,int);
+        }
        buf[0] = (char)c;
        if( precision>=0 ){
          for(idx=1; idx<precision; idx++) buf[idx] = (char)c;
@@ -575,10 +634,14 @@ void sqlite3VXPrintf(
        break;
      case etSTRING:
      case etDYNSTRING:
-        bufpt = va_arg(ap,char*);
+        if( bArgList ){
+          bufpt = getTextArg(pArgList);
+        }else{
+          bufpt = va_arg(ap,char*);
+        }
        if( bufpt==0 ){
          bufpt = "";
-        }else if( xtype==etDYNSTRING ){
+        }else if( xtype==etDYNSTRING && !bArgList ){
          zExtra = bufpt;
        }
        if( precision>=0 ){
@@ -594,7 +657,13 @@ void sqlite3VXPrintf(
        int needQuote;
        char ch;
        char q = ((xtype==etSQLESCAPE3)?'"':'\'');   /* Quote character */
-        char *escarg = va_arg(ap,char*);
+        char *escarg;
+
+        if( bArgList ){
+          escarg = getTextArg(pArgList);
+        }else{
+          escarg = va_arg(ap,char*);
+        }
        isnull = escarg==0;
        if( isnull ) escarg = (xtype==etSQLESCAPE2 ? "NULL" : "(NULL)");
        k = precision;
@@ -606,7 +675,7 @@ void sqlite3VXPrintf(
        if( n>etBUFSIZE ){
          bufpt = zExtra = sqlite3Malloc( n );
          if( bufpt==0 ){
-            pAccum->accError = STRACCUM_NOMEM;
+            setStrAccumError(pAccum, STRACCUM_NOMEM);
            return;
          }
        }else{
@@ -629,7 +698,8 @@ void sqlite3VXPrintf(
      }
      case etTOKEN: {
        Token *pToken = va_arg(ap, Token*);
-        if( pToken ){
+        assert( bArgList==0 );
+        if( pToken && pToken->n ){
          sqlite3StrAccumAppend(pAccum, (const char*)pToken->z, pToken->n);
        }
        length = width = 0;
@@ -639,12 +709,13 @@ void sqlite3VXPrintf(
        SrcList *pSrc = va_arg(ap, SrcList*);
        int k = va_arg(ap, int);
        struct SrcList_item *pItem = &pSrc->a[k];
+        assert( bArgList==0 );
        assert( k>=0 && k<pSrc->nSrc );
        if( pItem->zDatabase ){
-          sqlite3StrAccumAppend(pAccum, pItem->zDatabase, -1);
+          sqlite3StrAccumAppendAll(pAccum, pItem->zDatabase);
          sqlite3StrAccumAppend(pAccum, ".", 1);
        }
-        sqlite3StrAccumAppend(pAccum, pItem->zName, -1);
+        sqlite3StrAccumAppendAll(pAccum, pItem->zName);
        length = width = 0;
        break;
      }
@@ -675,7 +746,7 @@ void sqlite3VXPrintf(
        sqlite3AppendSpace(pAccum, nspace);
      }
    }
-    sqlite3_free(zExtra);
+    if( zExtra ) sqlite3_free(zExtra);
  }/* End for loop over the format string */
 } /* End of function */

@@ -683,22 +754,20 @@ void sqlite3VXPrintf(
 ** Append N bytes of text from z to the StrAccum object.
 */
 void sqlite3StrAccumAppend(StrAccum *p, const char *z, int N){
-  assert( z!=0 || N==0 );
-  if( p->accError ){
-    testcase(p->accError==STRACCUM_TOOBIG);
-    testcase(p->accError==STRACCUM_NOMEM);
-    return;
-  }
-  assert( p->zText!=0 || p->nChar==0 );
-  if( N<=0 ){
-    if( N==0 || z[0]==0 ) return;
-    N = sqlite3Strlen30(z);
-  }
+  assert( z!=0 );
+  assert( p->zText!=0 || p->nChar==0 || p->accError );
+  assert( N>=0 );
+  assert( p->accError==0 || p->nAlloc==0 );
  if( p->nChar+N >= p->nAlloc ){
    char *zNew;
+    if( p->accError ){
+      testcase(p->accError==STRACCUM_TOOBIG);
+      testcase(p->accError==STRACCUM_NOMEM);
+      return;
+    }
    if( !p->useMalloc ){
-      p->accError = STRACCUM_TOOBIG;
      N = p->nAlloc - p->nChar - 1;
+      setStrAccumError(p, STRACCUM_TOOBIG);
      if( N<=0 ){
        return;
      }
@@ -708,7 +777,7 @@ void sqlite3StrAccumAppend(StrAccum *p, const char *z, int N){
      szNew += N + 1;
      if( szNew > p->mxAlloc ){
        sqlite3StrAccumReset(p);
-        p->accError = STRACCUM_TOOBIG;
+        setStrAccumError(p, STRACCUM_TOOBIG);
        return;
      }else{
        p->nAlloc = (int)szNew;
@@ -722,8 +791,8 @@ void sqlite3StrAccumAppend(StrAccum *p, const char *z, int N){
        if( zOld==0 && p->nChar>0 ) memcpy(zNew, p->zText, p->nChar);
        p->zText = zNew;
      }else{
-        p->accError = STRACCUM_NOMEM;
        sqlite3StrAccumReset(p);
+        setStrAccumError(p, STRACCUM_NOMEM);
        return;
      }
    }
@@ -733,6 +802,14 @@ void sqlite3StrAccumAppend(StrAccum *p, const char *z, int N){
  p->nChar += N;
 }

+/*
+** Append the complete text of zero-terminated string z[] to the p string.
+*/
+void sqlite3StrAccumAppendAll(StrAccum *p, const char *z){
+  sqlite3StrAccumAppend(p, z, sqlite3Strlen30(z));
+}
+
+
 /*
 ** Finish off a string by making sure it is zero-terminated.
 ** Return a pointer to the resulting string.  Return a NULL
@@ -750,7 +827,7 @@ char *sqlite3StrAccumFinish(StrAccum *p){
      if( p->zText ){
        memcpy(p->zText, p->zBase, p->nChar+1);
      }else{
-        p->accError = STRACCUM_NOMEM;
+        setStrAccumError(p, STRACCUM_NOMEM);
      }
    }
  }
@@ -796,7 +873,7 @@ char *sqlite3VMPrintf(sqlite3 *db, const char *zFormat, va_list ap){
  sqlite3StrAccumInit(&acc, zBase, sizeof(zBase),
                      db->aLimit[SQLITE_LIMIT_LENGTH]);
  acc.db = db;
-  sqlite3VXPrintf(&acc, 1, zFormat, ap);
+  sqlite3VXPrintf(&acc, SQLITE_PRINTF_INTERNAL, zFormat, ap);
  z = sqlite3StrAccumFinish(&acc);
  if( acc.accError==STRACCUM_NOMEM ){
    db->mallocFailed = 1;
@@ -952,14 +1029,12 @@ void sqlite3DebugPrintf(const char *zFormat, ...){
 }
 #endif

-#ifndef SQLITE_OMIT_TRACE
 /*
 ** variable-argument wrapper around sqlite3VXPrintf().
 */
-void sqlite3XPrintf(StrAccum *p, const char *zFormat, ...){
+void sqlite3XPrintf(StrAccum *p, u32 bFlags, const char *zFormat, ...){
  va_list ap;
  va_start(ap,zFormat);
-  sqlite3VXPrintf(p, 1, zFormat, ap);
+  sqlite3VXPrintf(p, bFlags, zFormat, ap);
  va_end(ap);
 }
-#endif
@@ -352,7 +352,9 @@ static int lookupName(
          }
        }
        if( iCol>=pTab->nCol && sqlite3IsRowid(zCol) && HasRowid(pTab) ){
-          iCol = -1;        /* IMP: R-44911-55124 */
+          /* IMP: R-24309-18625 */
+          /* IMP: R-44911-55124 */
+          iCol = -1;
        }
        if( iCol<pTab->nCol ){
          cnt++;
@@ -667,7 +669,6 @@ static int resolveExprStep(Walker *pWalker, Expr *pExpr){

    /* Resolve function names
    */
-    case TK_CONST_FUNC:
    case TK_FUNCTION: {
      ExprList *pList = pExpr->x.pList;    /* The argument list */
      int n = pList ? pList->nExpr : 0;    /* Number of arguments */
@@ -680,7 +681,6 @@ static int resolveExprStep(Walker *pWalker, Expr *pExpr){
      FuncDef *pDef;              /* Information about the function */
      u8 enc = ENC(pParse->db);   /* The database encoding */

-      testcase( pExpr->op==TK_CONST_FUNC );
      assert( !ExprHasProperty(pExpr, EP_xIsSelect) );
      notValidPartIdxWhere(pParse, pNC, "functions");
      zId = pExpr->u.zToken;
@@ -725,6 +725,7 @@ static int resolveExprStep(Walker *pWalker, Expr *pExpr){
          pExpr->op = TK_NULL;
          return WRC_Prune;
        }
+        if( pDef->funcFlags & SQLITE_FUNC_CONSTANT ) ExprSetProperty(pExpr,EP_Constant);
      }
 #endif
      if( is_agg && (pNC->ncFlags & NC_AllowAgg)==0 ){
@@ -599,7 +599,8 @@ static void selectInnerLoop(
    ** values returned by the SELECT are not required.
    */
    sqlite3ExprCacheClear(pParse);
-    sqlite3ExprCodeExprList(pParse, pEList, regResult, eDest==SRT_Output);
+    sqlite3ExprCodeExprList(pParse, pEList, regResult,
+                            (eDest==SRT_Output)?SQLITE_ECEL_DUP:0);
  }
  nColumn = nResultCol;

@@ -3885,7 +3886,7 @@ static void updateAccumulator(Parse *pParse, AggInfo *pAggInfo){
    if( pList ){
      nArg = pList->nExpr;
      regAgg = sqlite3GetTempRange(pParse, nArg);
-      sqlite3ExprCodeExprList(pParse, pList, regAgg, 1);
+      sqlite3ExprCodeExprList(pParse, pList, regAgg, SQLITE_ECEL_DUP);
    }else{
      nArg = 0;
      regAgg = 0;
@@ -466,6 +466,7 @@ struct callback_data {
  FILE *pLog;            /* Write log output here */
  int *aiIndent;         /* Array of indents used in MODE_Explain */
  int nIndent;           /* Size of array aiIndent[] */
+  int iIndent;           /* Index of current op in aiIndent[] */
 };

 /*
@@ -771,10 +772,10 @@ static int shell_callback(void *pArg, int nArg, char **azArg, char **azCol, int
          w = strlen30(azArg[i]);
        }
        if( i==1 && p->aiIndent && p->pStmt ){
-          int iOp = sqlite3_column_int(p->pStmt, 0);
-          if( iOp<p->nIndent ){
-            fprintf(p->out, "%*.s", p->aiIndent[iOp], "");
+          if( p->iIndent<p->nIndent ){
+            fprintf(p->out, "%*.s", p->aiIndent[p->iIndent], "");
          }
+          p->iIndent++;
        }
        if( w<0 ){
          fprintf(p->out,"%*.*s%s",-w,-w,
@@ -1184,7 +1185,7 @@ static void explain_data_prepare(struct callback_data *p, sqlite3_stmt *pSql){
  const char *z;                  /* Used to check if this is an EXPLAIN */
  int *abYield = 0;               /* True if op is an OP_Yield */
  int nAlloc = 0;                 /* Allocated size of p->aiIndent[], abYield */
-  int iOp;
+  int iOp;                        /* Index of operation in p->aiIndent[] */

  const char *azNext[] = { "Next", "Prev", "VPrev", "VNext", "SorterNext", 0 };
  const char *azYield[] = { "Yield", "SeekLt", "SeekGt", "RowSetRead", 0 };
@@ -1199,8 +1200,16 @@ static void explain_data_prepare(struct callback_data *p, sqlite3_stmt *pSql){

  for(iOp=0; SQLITE_ROW==sqlite3_step(pSql); iOp++){
    int i;
+    int iAddr = sqlite3_column_int(pSql, 0);
    const char *zOp = (const char*)sqlite3_column_text(pSql, 1);
+
+    /* Set p2 to the P2 field of the current opcode. Then, assuming that
+    ** p2 is an instruction address, set variable p2op to the index of that
+    ** instruction in the aiIndent[] array. p2 and p2op may be different if
+    ** the current instruction is part of a sub-program generated by an
+    ** SQL trigger or foreign key.  */
    int p2 = sqlite3_column_int(pSql, 3);
+    int p2op = (p2 + (iOp-iAddr));

    /* Grow the p->aiIndent array as required */
    if( iOp>=nAlloc ){
@@ -1213,13 +1222,14 @@ static void explain_data_prepare(struct callback_data *p, sqlite3_stmt *pSql){
    p->nIndent = iOp+1;

    if( str_in_array(zOp, azNext) ){
-      for(i=p2; i<iOp; i++) p->aiIndent[i] += 2;
+      for(i=p2op; i<iOp; i++) p->aiIndent[i] += 2;
    }
-    if( str_in_array(zOp, azGoto) && p2<p->nIndent && abYield[p2] ){
-      for(i=p2+1; i<iOp; i++) p->aiIndent[i] += 2;
+    if( str_in_array(zOp, azGoto) && p2op<p->nIndent && abYield[p2op] ){
+      for(i=p2op; i<iOp; i++) p->aiIndent[i] += 2;
    }
  }

+  p->iIndent = 0;
  sqlite3_free(abYield);
  sqlite3_reset(pSql);
 }
@@ -1231,6 +1241,7 @@ static void explain_data_delete(struct callback_data *p){
  sqlite3_free(p->aiIndent);
  p->aiIndent = 0;
  p->nIndent = 0;
+  p->iIndent = 0;
 }

 /*
@@ -1296,7 +1307,7 @@ static int shell_exec(

      /* If the shell is currently in ".explain" mode, gather the extra
      ** data required to add indents to the output.*/
-      if( pArg->mode==MODE_Explain ){
+      if( pArg && pArg->mode==MODE_Explain ){
        explain_data_prepare(pArg, pStmt);
      }

@@ -1825,7 +1836,7 @@ static void csv_append_char(CSVReader *p, int c){
 **   +  Report syntax errors on stderr
 */
 static char *csv_read_one_field(CSVReader *p){
-  int c, pc;
+  int c, pc, ppc;
  int cSep = p->cSeparator;
  p->n = 0;
  c = fgetc(p->in);
@@ -1836,7 +1847,7 @@ static char *csv_read_one_field(CSVReader *p){
  if( c=='"' ){
    int startLine = p->nLine;
    int cQuote = c;
-    pc = 0;
+    pc = ppc = 0;
    while( 1 ){
      c = fgetc(p->in);
      if( c=='\n' ) p->nLine++;
@@ -1848,7 +1859,7 @@ static char *csv_read_one_field(CSVReader *p){
      }
      if( (c==cSep && pc==cQuote)
       || (c=='\n' && pc==cQuote)
-       || (c=='\n' && pc=='\r' && p->n>=2 && p->z[p->n-2]==cQuote)
+       || (c=='\n' && pc=='\r' && ppc==cQuote)
       || (c==EOF && pc==cQuote)
      ){
        do{ p->n--; }while( p->z[p->n]!=cQuote );
@@ -1866,6 +1877,7 @@ static char *csv_read_one_field(CSVReader *p){
        break;
      }
      csv_append_char(p, c);
+      ppc = pc;
      pc = c;
    }
  }else{
@@ -2085,7 +2097,7 @@ static int do_meta_command(char *zLine, struct callback_data *p){
      */
      p->mode = MODE_Explain;
      p->showHeader = 1;
-      memset(p->colWidth,0,ArraySize(p->colWidth));
+      memset(p->colWidth,0,sizeof(p->colWidth));
      p->colWidth[0] = 4;                  /* addr */
      p->colWidth[1] = 13;                 /* opcode */
      p->colWidth[2] = 4;                  /* P1 */
@@ -365,7 +365,7 @@ typedef int (*sqlite3_callback)(void*,int,char**, char**);
 ** <ul>
 ** <li> The application must insure that the 1st parameter to sqlite3_exec()
 **      is a valid and open [database connection].
-** <li> The application must not close [database connection] specified by
+** <li> The application must not close the [database connection] specified by
 **      the 1st parameter to sqlite3_exec() while sqlite3_exec() is running.
 ** <li> The application must not modify the SQL statement text passed into
 **      the 2nd parameter of sqlite3_exec() while sqlite3_exec() is running.
@@ -442,7 +442,7 @@ int sqlite3_exec(
 ** [sqlite3_extended_result_codes()] API.
 **
 ** Some of the available extended result codes are listed here.
-** One may expect the number of extended result codes will be expand
+** One may expect the number of extended result codes will increase
 ** over time.  Software that uses extended result codes should expect
 ** to see new result codes in future releases of SQLite.
 **
@@ -486,6 +486,7 @@ int sqlite3_exec(
 #define SQLITE_READONLY_RECOVERY       (SQLITE_READONLY | (1<<8))
 #define SQLITE_READONLY_CANTLOCK       (SQLITE_READONLY | (2<<8))
 #define SQLITE_READONLY_ROLLBACK       (SQLITE_READONLY | (3<<8))
+#define SQLITE_READONLY_DBMOVED        (SQLITE_READONLY | (4<<8))
 #define SQLITE_ABORT_ROLLBACK          (SQLITE_ABORT | (2<<8))
 #define SQLITE_CONSTRAINT_CHECK        (SQLITE_CONSTRAINT | (1<<8))
 #define SQLITE_CONSTRAINT_COMMITHOOK   (SQLITE_CONSTRAINT | (2<<8))
@@ -553,7 +554,8 @@ int sqlite3_exec(
 ** after reboot following a crash or power loss, the only bytes in a
 ** file that were written at the application level might have changed
 ** and that adjacent bytes, even bytes within the same sector are
-** guaranteed to be unchanged.
+** guaranteed to be unchanged.  The SQLITE_IOCAP_UNDELETABLE_WHEN_OPEN
+** flag indicate that a file cannot be deleted when open.
 */
 #define SQLITE_IOCAP_ATOMIC                 0x00000001
 #define SQLITE_IOCAP_ATOMIC512              0x00000002
@@ -784,15 +786,29 @@ struct sqlite3_io_methods {
 ** additional information.
 **
 ** <li>[[SQLITE_FCNTL_SYNC_OMITTED]]
-** ^(The [SQLITE_FCNTL_SYNC_OMITTED] opcode is generated internally by
-** SQLite and sent to all VFSes in place of a call to the xSync method
-** when the database connection has [PRAGMA synchronous] set to OFF.)^
-** Some specialized VFSes need this signal in order to operate correctly
-** when [PRAGMA synchronous | PRAGMA synchronous=OFF] is set, but most 
-** VFSes do not need this signal and should silently ignore this opcode.
-** Applications should not call [sqlite3_file_control()] with this
-** opcode as doing so may disrupt the operation of the specialized VFSes
-** that do require it.  
+** No longer in use.
+**
+** <li>[[SQLITE_FCNTL_SYNC]]
+** The [SQLITE_FCNTL_SYNC] opcode is generated internally by SQLite and
+** sent to the VFS immediately before the xSync method is invoked on a
+** database file descriptor. Or, if the xSync method is not invoked 
+** because the user has configured SQLite with 
+** [PRAGMA synchronous | PRAGMA synchronous=OFF] it is invoked in place 
+** of the xSync method. In most cases, the pointer argument passed with
+** this file-control is NULL. However, if the database file is being synced
+** as part of a multi-database commit, the argument points to a nul-terminated
+** string containing the transactions master-journal file name. VFSes that 
+** do not need this signal should silently ignore this opcode. Applications 
+** should not call [sqlite3_file_control()] with this opcode as doing so may 
+** disrupt the operation of the specialized VFSes that do require it.  
+**
+** <li>[[SQLITE_FCNTL_COMMIT_PHASETWO]]
+** The [SQLITE_FCNTL_COMMIT_PHASETWO] opcode is generated internally by SQLite
+** and sent to the VFS after a transaction has been committed immediately
+** but before the database is unlocked. VFSes that do not need this signal
+** should silently ignore this opcode. Applications should not call
+** [sqlite3_file_control()] with this opcode as doing so may disrupt the 
+** operation of the specialized VFSes that do require it.  
 **
 ** <li>[[SQLITE_FCNTL_WIN32_AV_RETRY]]
 ** ^The [SQLITE_FCNTL_WIN32_AV_RETRY] opcode is used to configure automatic
@@ -916,6 +932,12 @@ struct sqlite3_io_methods {
 ** SQLite stack may generate instances of this file control if
 ** the [SQLITE_USE_FCNTL_TRACE] compile-time option is enabled.
 **
+** <li>[[SQLITE_FCNTL_HAS_MOVED]]
+** The [SQLITE_FCNTL_HAS_MOVED] file control interprets its argument as a
+** pointer to an integer and it writes a boolean into that integer depending
+** on whether or not the file has been renamed, moved, or deleted since it
+** was first opened.
+**
 ** </ul>
 */
 #define SQLITE_FCNTL_LOCKSTATE               1
@@ -936,6 +958,9 @@ struct sqlite3_io_methods {
 #define SQLITE_FCNTL_TEMPFILENAME           16
 #define SQLITE_FCNTL_MMAP_SIZE              18
 #define SQLITE_FCNTL_TRACE                  19
+#define SQLITE_FCNTL_HAS_MOVED              20
+#define SQLITE_FCNTL_SYNC                   21
+#define SQLITE_FCNTL_COMMIT_PHASETWO        22

 /*
 ** CAPI3REF: Mutex Handle
@@ -1380,7 +1405,7 @@ int sqlite3_db_config(sqlite3*, int op, ...);
 ** or [sqlite3_realloc()] first calls xRoundup.  If xRoundup returns 0, 
 ** that causes the corresponding memory allocation to fail.
 **
-** The xInit method initializes the memory allocator.  (For example,
+** The xInit method initializes the memory allocator.  For example,
 ** it might allocate any require mutexes or initialize internal data
 ** structures.  The xShutdown method is invoked (indirectly) by
 ** [sqlite3_shutdown()] and should deallocate any resources acquired
@@ -1682,6 +1707,13 @@ struct sqlite3_mem_methods {
 ** [SQLITE_MAX_MMAP_SIZE] compile-time option.)^
 ** ^If either argument to this option is negative, then that argument is
 ** changed to its compile-time default.
+**
+** [[SQLITE_CONFIG_WIN32_HEAPSIZE]]
+** <dt>SQLITE_CONFIG_WIN32_HEAPSIZE
+** <dd>^This option is only available if SQLite is compiled for Windows
+** with the [SQLITE_WIN32_MALLOC] pre-processor macro defined.
+** SQLITE_CONFIG_WIN32_HEAPSIZE takes a 32-bit unsigned integer value
+** that specifies the maximum size of the created heap.
 ** </dl>
 */
 #define SQLITE_CONFIG_SINGLETHREAD  1  /* nil */
@@ -1706,6 +1738,7 @@ struct sqlite3_mem_methods {
 #define SQLITE_CONFIG_COVERING_INDEX_SCAN 20  /* int */
 #define SQLITE_CONFIG_SQLLOG       21  /* xSqllog, void* */
 #define SQLITE_CONFIG_MMAP_SIZE    22  /* sqlite3_int64, sqlite3_int64 */
+#define SQLITE_CONFIG_WIN32_HEAPSIZE      23  /* int nByte */

 /*
 ** CAPI3REF: Database Connection Configuration Options
@@ -3106,7 +3139,6 @@ int sqlite3_limit(sqlite3*, int id, int newVal);
 ** choice of query plan if the parameter is the left-hand side of a [LIKE]
 ** or [GLOB] operator or if the parameter is compared to an indexed column
 ** and the [SQLITE_ENABLE_STAT3] compile-time option is enabled.
-** the 
 ** </li>
 ** </ol>
 */
@@ -3768,19 +3800,19 @@ int sqlite3_data_count(sqlite3_stmt *pStmt);
 **
 ** <tr><td>  NULL    <td> INTEGER   <td> Result is 0
 ** <tr><td>  NULL    <td>  FLOAT    <td> Result is 0.0
-** <tr><td>  NULL    <td>   TEXT    <td> Result is NULL pointer
-** <tr><td>  NULL    <td>   BLOB    <td> Result is NULL pointer
+** <tr><td>  NULL    <td>   TEXT    <td> Result is a NULL pointer
+** <tr><td>  NULL    <td>   BLOB    <td> Result is a NULL pointer
 ** <tr><td> INTEGER  <td>  FLOAT    <td> Convert from integer to float
 ** <tr><td> INTEGER  <td>   TEXT    <td> ASCII rendering of the integer
 ** <tr><td> INTEGER  <td>   BLOB    <td> Same as INTEGER->TEXT
-** <tr><td>  FLOAT   <td> INTEGER   <td> Convert from float to integer
+** <tr><td>  FLOAT   <td> INTEGER   <td> [CAST] to INTEGER
 ** <tr><td>  FLOAT   <td>   TEXT    <td> ASCII rendering of the float
-** <tr><td>  FLOAT   <td>   BLOB    <td> Same as FLOAT->TEXT
-** <tr><td>  TEXT    <td> INTEGER   <td> Use atoi()
-** <tr><td>  TEXT    <td>  FLOAT    <td> Use atof()
+** <tr><td>  FLOAT   <td>   BLOB    <td> [CAST] to BLOB
+** <tr><td>  TEXT    <td> INTEGER   <td> [CAST] to INTEGER
+** <tr><td>  TEXT    <td>  FLOAT    <td> [CAST] to REAL
 ** <tr><td>  TEXT    <td>   BLOB    <td> No change
-** <tr><td>  BLOB    <td> INTEGER   <td> Convert to TEXT then use atoi()
-** <tr><td>  BLOB    <td>  FLOAT    <td> Convert to TEXT then use atof()
+** <tr><td>  BLOB    <td> INTEGER   <td> [CAST] to INTEGER
+** <tr><td>  BLOB    <td>  FLOAT    <td> [CAST] to REAL
 ** <tr><td>  BLOB    <td>   TEXT    <td> Add a zero terminator if needed
 ** </table>
 ** </blockquote>)^
@@ -3836,7 +3868,7 @@ int sqlite3_data_count(sqlite3_stmt *pStmt);
 ** described above, or until [sqlite3_step()] or [sqlite3_reset()] or
 ** [sqlite3_finalize()] is called.  ^The memory space used to hold strings
 ** and BLOBs is freed automatically.  Do <b>not</b> pass the pointers returned
-** [sqlite3_column_blob()], [sqlite3_column_text()], etc. into
+** from [sqlite3_column_blob()], [sqlite3_column_text()], etc. into
 ** [sqlite3_free()].
 **
 ** ^(If a memory allocation error occurs during the evaluation of any
@@ -3945,15 +3977,24 @@ int sqlite3_reset(sqlite3_stmt *pStmt);
 **
 ** ^The fourth parameter, eTextRep, specifies what
 ** [SQLITE_UTF8 | text encoding] this SQL function prefers for
-** its parameters.  Every SQL function implementation must be able to work
-** with UTF-8, UTF-16le, or UTF-16be.  But some implementations may be
-** more efficient with one encoding than another.  ^An application may
-** invoke sqlite3_create_function() or sqlite3_create_function16() multiple
-** times with the same function but with different values of eTextRep.
+** its parameters.  The application should set this parameter to
+** [SQLITE_UTF16LE] if the function implementation invokes 
+** [sqlite3_value_text16le()] on an input, or [SQLITE_UTF16BE] if the
+** implementation invokes [sqlite3_value_text16be()] on an input, or
+** [SQLITE_UTF16] if [sqlite3_value_text16()] is used, or [SQLITE_UTF8]
+** otherwise.  ^The same SQL function may be registered multiple times using
+** different preferred text encodings, with different implementations for
+** each encoding.
 ** ^When multiple implementations of the same function are available, SQLite
 ** will pick the one that involves the least amount of data conversion.
-** If there is only a single implementation which does not care what text
-** encoding is used, then the fourth argument should be [SQLITE_ANY].
+**
+** ^The fourth parameter may optionally be ORed with [SQLITE_DETERMINISTIC]
+** to signal that the function will always return the same result given
+** the same inputs within a single SQL statement.  Most SQL functions are
+** deterministic.  The built-in [random()] SQL function is an example of a
+** function that is not deterministic.  The SQLite query planner is able to
+** perform additional optimizations on deterministic functions, so use
+** of the [SQLITE_DETERMINISTIC] flag is recommended where possible.
 **
 ** ^(The fifth parameter is an arbitrary pointer.  The implementation of the
 ** function can gain access to this pointer using [sqlite3_user_data()].)^
@@ -4039,9 +4080,19 @@ int sqlite3_create_function_v2(
 #define SQLITE_UTF16LE        2
 #define SQLITE_UTF16BE        3
 #define SQLITE_UTF16          4    /* Use native byte order */
-#define SQLITE_ANY            5    /* sqlite3_create_function only */
+#define SQLITE_ANY            5    /* Deprecated */
 #define SQLITE_UTF16_ALIGNED  8    /* sqlite3_create_collation only */

+/*
+** CAPI3REF: Function Flags
+**
+** These constants may be ORed together with the 
+** [SQLITE_UTF8 | preferred text encoding] as the fourth argument
+** to [sqlite3_create_function()], [sqlite3_create_function16()], or
+** [sqlite3_create_function_v2()].
+*/
+#define SQLITE_DETERMINISTIC    0x800
+
 /*
 ** CAPI3REF: Deprecated Functions
 ** DEPRECATED
@@ -4914,8 +4965,8 @@ int sqlite3_release_memory(int);
 **
 ** ^The sqlite3_db_release_memory(D) interface attempts to free as much heap
 ** memory as possible from database connection D. Unlike the
-** [sqlite3_release_memory()] interface, this interface is effect even
-** when then [SQLITE_ENABLE_MEMORY_MANAGEMENT] compile-time option is
+** [sqlite3_release_memory()] interface, this interface is in effect even
+** when the [SQLITE_ENABLE_MEMORY_MANAGEMENT] compile-time option is
 ** omitted.
 **
 ** See also: [sqlite3_release_memory()]
@@ -6062,7 +6113,8 @@ int sqlite3_test_control(int op, ...);
 #define SQLITE_TESTCTRL_SCRATCHMALLOC           17
 #define SQLITE_TESTCTRL_LOCALTIME_FAULT         18
 #define SQLITE_TESTCTRL_EXPLAIN_STMT            19
-#define SQLITE_TESTCTRL_LAST                    19
+#define SQLITE_TESTCTRL_NEVER_CORRUPT           20
+#define SQLITE_TESTCTRL_LAST                    20

 /*
 ** CAPI3REF: SQLite Runtime Status
@@ -742,6 +742,7 @@ typedef struct LookasideSlot LookasideSlot;
 typedef struct Module Module;
 typedef struct NameContext NameContext;
 typedef struct Parse Parse;
+typedef struct PrintfArguments PrintfArguments;
 typedef struct RowSet RowSet;
 typedef struct Savepoint Savepoint;
 typedef struct Select Select;
@@ -1077,6 +1078,13 @@ struct sqlite3 {
 #define OptimizationEnabled(db, mask)   1
 #endif

+/*
+** Return true if it OK to factor constant expressions into the initialization
+** code. The argument is a Parse object for the code generator.
+*/
+#define ConstFactorOk(P) \
+  ((P)->cookieGoto>0 && OptimizationEnabled((P)->db,SQLITE_FactorOutConst))
+
 /*
 ** Possible values for the sqlite.magic field.
 ** The numbers are obtained at random and have no special meaning, other
@@ -1143,6 +1151,7 @@ struct FuncDestructor {
 #define SQLITE_FUNC_COUNT    0x100 /* Built-in count(*) aggregate */
 #define SQLITE_FUNC_COALESCE 0x200 /* Built-in coalesce() or ifnull() */
 #define SQLITE_FUNC_UNLIKELY 0x400 /* Built-in unlikely() function */
+#define SQLITE_FUNC_CONSTANT 0x800 /* Constant inputs give a constant output */

 /*
 ** The following three macros, FUNCTION(), LIKEFUNC() and AGGREGATE() are
@@ -1155,6 +1164,9 @@ struct FuncDestructor {
 **     as the user-data (sqlite3_user_data()) for the function. If 
 **     argument bNC is true, then the SQLITE_FUNC_NEEDCOLL flag is set.
 **
+**   VFUNCTION(zName, nArg, iArg, bNC, xFunc)
+**     Like FUNCTION except it omits the SQLITE_FUNC_CONSTANT flag.
+**
 **   AGGREGATE(zName, nArg, iArg, bNC, xStep, xFinal)
 **     Used to create an aggregate function definition implemented by
 **     the C functions xStep and xFinal. The first four parameters
@@ -1170,16 +1182,20 @@ struct FuncDestructor {
 **     parameter.
 */
 #define FUNCTION(zName, nArg, iArg, bNC, xFunc) \
+  {nArg, SQLITE_FUNC_CONSTANT|SQLITE_UTF8|(bNC*SQLITE_FUNC_NEEDCOLL), \
+   SQLITE_INT_TO_PTR(iArg), 0, xFunc, 0, 0, #zName, 0, 0}
+#define VFUNCTION(zName, nArg, iArg, bNC, xFunc) \
  {nArg, SQLITE_UTF8|(bNC*SQLITE_FUNC_NEEDCOLL), \
   SQLITE_INT_TO_PTR(iArg), 0, xFunc, 0, 0, #zName, 0, 0}
 #define FUNCTION2(zName, nArg, iArg, bNC, xFunc, extraFlags) \
-  {nArg, SQLITE_UTF8|(bNC*SQLITE_FUNC_NEEDCOLL)|extraFlags, \
+  {nArg,SQLITE_FUNC_CONSTANT|SQLITE_UTF8|(bNC*SQLITE_FUNC_NEEDCOLL)|extraFlags,\
   SQLITE_INT_TO_PTR(iArg), 0, xFunc, 0, 0, #zName, 0, 0}
 #define STR_FUNCTION(zName, nArg, pArg, bNC, xFunc) \
-  {nArg, SQLITE_UTF8|(bNC*SQLITE_FUNC_NEEDCOLL), \
+  {nArg, SQLITE_FUNC_CONSTANT|SQLITE_UTF8|(bNC*SQLITE_FUNC_NEEDCOLL), \
   pArg, 0, xFunc, 0, 0, #zName, 0, 0}
 #define LIKEFUNC(zName, nArg, arg, flags) \
-  {nArg, SQLITE_UTF8|flags, (void *)arg, 0, likeFunc, 0, 0, #zName, 0, 0}
+  {nArg, SQLITE_FUNC_CONSTANT|SQLITE_UTF8|flags, \
+   (void *)arg, 0, likeFunc, 0, 0, #zName, 0, 0}
 #define AGGREGATE(zName, nArg, arg, nc, xStep, xFinal) \
  {nArg, SQLITE_UTF8|(nc*SQLITE_FUNC_NEEDCOLL), \
   SQLITE_INT_TO_PTR(arg), 0, 0, xStep,xFinal,#zName,0,0}
@@ -1839,6 +1855,7 @@ struct Expr {
 #define EP_MemToken  0x010000 /* Need to sqlite3DbFree() Expr.zToken */
 #define EP_NoReduce  0x020000 /* Cannot EXPRDUP_REDUCE this Expr */
 #define EP_Unlikely  0x040000 /* unlikely() or likelihood() function */
+#define EP_Constant  0x080000 /* Node is a constant */

 /*
 ** These macros can be used to test, set, or clear bits in the 
@@ -1900,6 +1917,7 @@ struct ExprList {
    u8 sortOrder;           /* 1 for DESC or 0 for ASC */
    unsigned done :1;       /* A flag to indicate when processing is finished */
    unsigned bSpanIsTab :1; /* zSpan holds DB.TABLE.COLUMN */
+    unsigned reusable :1;   /* Constant expression is reusable */
    union {
      struct {
        u16 iOrderByCol;      /* For ORDER BY, column number in result set */
@@ -2521,6 +2539,7 @@ struct Sqlite3Config {
  int bOpenUri;                     /* True to interpret filenames as URIs */
  int bUseCis;                      /* Use covering indices for full-scans */
  int mxStrlen;                     /* Maximum string length */
+  int neverCorrupt;                 /* Database is always well-formed */
  int szLookaside;                  /* Default lookaside buffer size */
  int nLookaside;                   /* Default lookaside buffer count */
  sqlite3_mem_methods m;            /* Low-level memory allocation interface */
@@ -2557,6 +2576,24 @@ struct Sqlite3Config {
 #endif
 };

+/*
+** This macro is used inside of assert() statements to indicate that
+** the assert is only valid on a well-formed database.  Instead of:
+**
+**     assert( X );
+**
+** One writes:
+**
+**     assert( X || CORRUPT_DB );
+**
+** CORRUPT_DB is true during normal operation.  CORRUPT_DB does not indicate
+** that the database is definitely corrupt, only that it might be corrupt.
+** For most test cases, CORRUPT_DB is set to false using a special
+** sqlite3_test_control().  This enables assert() statements to prove
+** things that are always true for well-formed databases.
+*/
+#define CORRUPT_DB  (sqlite3Config.neverCorrupt==0)
+
 /*
 ** Context pointer passed down through the tree-walk.
 */
@@ -2728,10 +2765,20 @@ void sqlite3StatusSet(int, int);
 # define sqlite3IsNaN(X)  0
 #endif

-void sqlite3VXPrintf(StrAccum*, int, const char*, va_list);
-#ifndef SQLITE_OMIT_TRACE
-void sqlite3XPrintf(StrAccum*, const char*, ...);
-#endif
+/*
+** An instance of the following structure holds information about SQL
+** functions arguments that are the parameters to the printf() function.
+*/
+struct PrintfArguments {
+  int nArg;                /* Total number of arguments */
+  int nUsed;               /* Number of arguments used so far */
+  sqlite3_value **apArg;   /* The argument values */
+};
+
+#define SQLITE_PRINTF_INTERNAL 0x01
+#define SQLITE_PRINTF_SQLFUNC  0x02
+void sqlite3VXPrintf(StrAccum*, u32, const char*, va_list);
+void sqlite3XPrintf(StrAccum*, u32, const char*, ...);
 char *sqlite3MPrintf(sqlite3*,const char*, ...);
 char *sqlite3VMPrintf(sqlite3*,const char*, va_list);
 char *sqlite3MAppendf(sqlite3*,char*,const char*,...);
@@ -2894,10 +2941,13 @@ void sqlite3ExprCacheRemove(Parse*, int, int);
 void sqlite3ExprCacheClear(Parse*);
 void sqlite3ExprCacheAffinityChange(Parse*, int, int);
 int sqlite3ExprCode(Parse*, Expr*, int);
+void sqlite3ExprCodeAtInit(Parse*, Expr*, int, u8);
 int sqlite3ExprCodeTemp(Parse*, Expr*, int*);
 int sqlite3ExprCodeTarget(Parse*, Expr*, int);
 int sqlite3ExprCodeAndCache(Parse*, Expr*, int);
-int sqlite3ExprCodeExprList(Parse*, ExprList*, int, int);
+int sqlite3ExprCodeExprList(Parse*, ExprList*, int, u8);
+#define SQLITE_ECEL_DUP      0x01  /* Deep, not shallow copies */
+#define SQLITE_ECEL_FACTOR   0x02  /* Factor out constant terms */
 void sqlite3ExprIfTrue(Parse*, Expr*, int, int);
 void sqlite3ExprIfFalse(Parse*, Expr*, int, int);
 Table *sqlite3FindTable(sqlite3*,const char*, const char*);
@@ -2942,7 +2992,7 @@ int sqlite3GenerateIndexKey(Parse*, Index*, int, int, int, int*);
 void sqlite3GenerateConstraintChecks(Parse*,Table*,int*,int,int,int,int,
                                     u8,u8,int,int*);
 void sqlite3CompleteInsertion(Parse*,Table*,int,int,int,int*,int,int,int);
-int sqlite3OpenTableAndIndices(Parse*, Table*, int, int, int*, int*);
+int sqlite3OpenTableAndIndices(Parse*, Table*, int, int, u8*, int*, int*);
 void sqlite3BeginWriteOperation(Parse*, int, int);
 void sqlite3MultiWrite(Parse*);
 void sqlite3MayAbort(Parse*);
@@ -3118,6 +3168,7 @@ const void *sqlite3ValueText(sqlite3_value*, u8);
 int sqlite3ValueBytes(sqlite3_value*, u8);
 void sqlite3ValueSetStr(sqlite3_value*, int, const void *,u8, 
                        void(*)(void*));
+void sqlite3ValueSetNull(sqlite3_value*);
 void sqlite3ValueFree(sqlite3_value*);
 sqlite3_value *sqlite3ValueNew(sqlite3 *);
 char *sqlite3Utf16to8(sqlite3 *, const void*, int, u8);
@@ -3183,6 +3234,7 @@ int sqlite3OpenTempDatabase(Parse *);

 void sqlite3StrAccumInit(StrAccum*, char*, int, int);
 void sqlite3StrAccumAppend(StrAccum*,const char*,int);
+void sqlite3StrAccumAppendAll(StrAccum*,const char*);
 void sqlite3AppendSpace(StrAccum*,int);
 char *sqlite3StrAccumFinish(StrAccum*);
 void sqlite3StrAccumReset(StrAccum*);
@@ -424,13 +424,12 @@ static int safeToUseEvalObjv(Tcl_Interp *interp, Tcl_Obj *pCmd){
 */
 static SqlFunc *findSqlFunc(SqliteDb *pDb, const char *zName){
  SqlFunc *p, *pNew;
-  int i;
-  pNew = (SqlFunc*)Tcl_Alloc( sizeof(*pNew) + strlen30(zName) + 1 );
+  int nName = strlen30(zName);
+  pNew = (SqlFunc*)Tcl_Alloc( sizeof(*pNew) + nName + 1 );
  pNew->zName = (char*)&pNew[1];
-  for(i=0; zName[i]; i++){ pNew->zName[i] = tolower(zName[i]); }
-  pNew->zName[i] = 0;
+  memcpy(pNew->zName, zName, nName+1);
  for(p=pDb->pFunc; p; p=p->pNext){ 
-    if( strcmp(p->zName, pNew->zName)==0 ){
+    if( sqlite3_stricmp(p->zName, pNew->zName)==0 ){
      Tcl_Free((char*)pNew);
      return p;
    }
@@ -1083,13 +1082,14 @@ static int dbPrepareAndBind(
  int nSql;                       /* Length of zSql in bytes */
  int nVar;                       /* Number of variables in statement */
  int iParm = 0;                  /* Next free entry in apParm */
+  char c;
  int i;
  Tcl_Interp *interp = pDb->interp;

  *ppPreStmt = 0;

  /* Trim spaces from the start of zSql and calculate the remaining length. */
-  while( isspace(zSql[0]) ){ zSql++; }
+  while( (c = zSql[0])==' ' || c=='\t' || c=='\r' || c=='\n' ){ zSql++; }
  nSql = strlen30(zSql);

  for(pPreStmt = pDb->stmtList; pPreStmt; pPreStmt=pPreStmt->pNext){
@@ -942,9 +942,21 @@ static void ptrChngFunction(
  sqlite3_result_int(context, p1!=p2);
 }

+/*
+** This SQL function returns a different answer each time it is called, even if
+** the arguments are the same.
+*/
+static void nondeterministicFunction(
+  sqlite3_context *context, 
+  int argc,  
+  sqlite3_value **argv
+){
+  static int cnt = 0;
+  sqlite3_result_int(context, cnt++);
+}

 /*
-** Usage:  sqlite_test_create_function DB
+** Usage:  sqlite3_create_function DB
 **
 ** Call the sqlite3_create_function API on the given database in order
 ** to create a function named "x_coalesce".  This function does the same thing
@@ -973,16 +985,16 @@ static int test_create_function(
    return TCL_ERROR;
  }
  if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
-  rc = sqlite3_create_function(db, "x_coalesce", -1, SQLITE_ANY, 0, 
+  rc = sqlite3_create_function(db, "x_coalesce", -1, SQLITE_UTF8, 0, 
        t1_ifnullFunc, 0, 0);
  if( rc==SQLITE_OK ){
-    rc = sqlite3_create_function(db, "hex8", 1, SQLITE_ANY, 0, 
-          hex8Func, 0, 0);
+    rc = sqlite3_create_function(db, "hex8", 1, SQLITE_UTF8 | SQLITE_DETERMINISTIC,
+          0, hex8Func, 0, 0);
  }
 #ifndef SQLITE_OMIT_UTF16
  if( rc==SQLITE_OK ){
-    rc = sqlite3_create_function(db, "hex16", 1, SQLITE_ANY, 0, 
-          hex16Func, 0, 0);
+    rc = sqlite3_create_function(db, "hex16", 1, SQLITE_UTF16 | SQLITE_DETERMINISTIC,
+          0, hex16Func, 0, 0);
  }
 #endif
  if( rc==SQLITE_OK ){
@@ -994,6 +1006,19 @@ static int test_create_function(
          ptrChngFunction, 0, 0);
  }

+  /* Functions counter1() and counter2() have the same implementation - they
+  ** both return an ascending integer with each call.  But counter1() is marked
+  ** as non-deterministic and counter2() is marked as deterministic.
+  */
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "counter1", -1, SQLITE_UTF8,
+          0, nondeterministicFunction, 0, 0);
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "counter2", -1, SQLITE_UTF8|SQLITE_DETERMINISTIC,
+          0, nondeterministicFunction, 0, 0);
+  }
+
 #ifndef SQLITE_OMIT_UTF16
  /* Use the sqlite3_create_function16() API here. Mainly for fun, but also 
  ** because it is not tested anywhere else. */
@@ -5453,6 +5478,37 @@ static int reset_prng_state(
  return TCL_OK;
 }

+/*
+** tclcmd:  database_may_be_corrupt
+**
+** Indicate that database files might be corrupt.  In other words, set the normal
+** state of operation.
+*/
+static int database_may_be_corrupt(
+  ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
+  Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
+  int objc,              /* Number of arguments */
+  Tcl_Obj *CONST objv[]  /* Command arguments */
+){
+  sqlite3_test_control(SQLITE_TESTCTRL_NEVER_CORRUPT, 0);
+  return TCL_OK;
+}
+/*
+** tclcmd:  database_never_corrupt
+**
+** Indicate that database files are always well-formed.  This enables extra assert()
+** statements that test conditions that are always true for well-formed databases.
+*/
+static int database_never_corrupt(
+  ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
+  Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
+  int objc,              /* Number of arguments */
+  Tcl_Obj *CONST objv[]  /* Command arguments */
+){
+  sqlite3_test_control(SQLITE_TESTCTRL_NEVER_CORRUPT, 1);
+  return TCL_OK;
+}
+
 /*
 ** tclcmd:  pcache_stats
 */
@@ -6331,6 +6387,8 @@ int Sqlitetest1_Init(Tcl_Interp *interp){
     { "save_prng_state",               save_prng_state,    0 },
     { "restore_prng_state",            restore_prng_state, 0 },
     { "reset_prng_state",              reset_prng_state,   0 },
+     { "database_never_corrupt",        database_never_corrupt, 0},
+     { "database_may_be_corrupt",       database_may_be_corrupt, 0},
     { "optimization_control",          optimization_control,0},
 #if SQLITE_OS_WIN
     { "lock_win32_file",               win32_file_lock,    0 },
@@ -173,9 +173,6 @@ static void *crash_realloc(void *p, int n){
 static int writeDbFile(CrashFile *p, u8 *z, i64 iAmt, i64 iOff){
  int rc = SQLITE_OK;
  int iSkip = 0;
-  if( iOff==PENDING_BYTE && (p->flags&SQLITE_OPEN_MAIN_DB) ){
-    iSkip = 512;
-  }
  if( (iAmt-iSkip)>0 ){
    rc = sqlite3OsWrite(p->pRealFile, &z[iSkip], (int)(iAmt-iSkip), iOff+iSkip);
  }
@@ -409,13 +406,17 @@ static int cfRead(
  sqlite_int64 iOfst
 ){
  CrashFile *pCrash = (CrashFile *)pFile;
+  int nCopy = (int)MIN((i64)iAmt, (pCrash->iSize - iOfst));
+
+  if( nCopy>0 ){
+    memcpy(zBuf, &pCrash->zData[iOfst], nCopy);
+  }

  /* Check the file-size to see if this is a short-read */
-  if( pCrash->iSize<(iOfst+iAmt) ){
+  if( nCopy<iAmt ){
    return SQLITE_IOERR_SHORT_READ;
  }

-  memcpy(zBuf, &pCrash->zData[iOfst], iAmt);
  return SQLITE_OK;
 }

@@ -632,14 +633,12 @@ static int cfOpen(
      ** UPDATE: It also contains an assert() verifying that each call
      ** to the xRead() method reads less than 128KB of data.
      */
-      const int isDb = (flags&SQLITE_OPEN_MAIN_DB);
      i64 iOff;

      memset(pWrapper->zData, 0, pWrapper->nData);
      for(iOff=0; iOff<pWrapper->iSize; iOff += 512){
        int nRead = (int)(pWrapper->iSize - iOff);
        if( nRead>512 ) nRead = 512;
-        if( isDb && iOff==PENDING_BYTE ) continue;
        rc = sqlite3OsRead(pReal, &pWrapper->zData[iOff], nRead, iOff);
      }
    }else{
@@ -63,6 +63,12 @@ static void set_options(Tcl_Interp *interp){
  Tcl_SetVar2(interp, "sqlite_options", "curdir", "0", TCL_GLOBAL_ONLY);
 #endif

+#ifdef SQLITE_WIN32_MALLOC
+  Tcl_SetVar2(interp, "sqlite_options", "win32malloc", "1", TCL_GLOBAL_ONLY);
+#else
+  Tcl_SetVar2(interp, "sqlite_options", "win32malloc", "0", TCL_GLOBAL_ONLY);
+#endif
+
 #ifdef SQLITE_DEBUG
  Tcl_SetVar2(interp, "sqlite_options", "debug", "1", TCL_GLOBAL_ONLY);
 #else
@@ -1130,6 +1130,33 @@ static int test_config_heap(
  return TCL_OK;
 }

+/*
+** Usage:    sqlite3_config_heap_size NBYTE
+*/
+static int test_config_heap_size(
+  void * clientData, 
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  int nByte;         /* Size to pass to sqlite3_config() */
+  int rc;            /* Return code of sqlite3_config() */
+
+  Tcl_Obj * CONST *aArg = &objv[1];
+  int nArg = objc-1;
+
+  if( nArg!=1 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "NBYTE");
+    return TCL_ERROR;
+  }
+  if( Tcl_GetIntFromObj(interp, aArg[0], &nByte) ) return TCL_ERROR;
+
+  rc = sqlite3_config(SQLITE_CONFIG_WIN32_HEAPSIZE, nByte);
+
+  Tcl_SetResult(interp, (char *)sqlite3ErrName(rc), TCL_VOLATILE);
+  return TCL_OK;
+}
+
 /*
 ** Usage:    sqlite3_config_error  [DB]
 **
@@ -1473,6 +1500,7 @@ int Sqlitetest_malloc_Init(Tcl_Interp *interp){
     { "sqlite3_db_status",          test_db_status                ,0 },
     { "install_malloc_faultsim",    test_install_malloc_faultsim  ,0 },
     { "sqlite3_config_heap",        test_config_heap              ,0 },
+     { "sqlite3_config_heap_size",   test_config_heap_size         ,0 },
     { "sqlite3_config_memstatus",   test_config_memstatus         ,0 },
     { "sqlite3_config_lookaside",   test_config_lookaside         ,0 },
     { "sqlite3_config_error",       test_config_error             ,0 },
@@ -258,6 +258,11 @@ static void vfstrace_print_errcode(
    case SQLITE_IOERR_SHMOPEN:      zVal = "SQLITE_IOERR_SHMOPEN";      break;
    case SQLITE_IOERR_SHMSIZE:      zVal = "SQLITE_IOERR_SHMSIZE";      break;
    case SQLITE_IOERR_SHMLOCK:      zVal = "SQLITE_IOERR_SHMLOCK";      break;
+    case SQLITE_IOERR_SHMMAP:       zVal = "SQLITE_IOERR_SHMMAP";       break;
+    case SQLITE_IOERR_SEEK:         zVal = "SQLITE_IOERR_SEEK";         break;
+    case SQLITE_IOERR_GETTEMPPATH:  zVal = "SQLITE_IOERR_GETTEMPPATH";  break;
+    case SQLITE_IOERR_CONVPATH:     zVal = "SQLITE_IOERR_CONVPATH";     break;
+    case SQLITE_READONLY_DBMOVED:   zVal = "SQLITE_READONLY_DBMOVED";   break;
    case SQLITE_LOCKED_SHAREDCACHE: zVal = "SQLITE_LOCKED_SHAREDCACHE"; break;
    case SQLITE_BUSY_RECOVERY:      zVal = "SQLITE_BUSY_RECOVERY";      break;
    case SQLITE_CANTOPEN_NOTEMPDIR: zVal = "SQLITE_CANTOPEN_NOTEMPDIR"; break;
@@ -101,6 +101,7 @@ void sqlite3Update(
  Index *pIdx;           /* For looping over indices */
  Index *pPk;            /* The PRIMARY KEY index for WITHOUT ROWID tables */
  int nIdx;              /* Number of indices that need updating */
+  int iBaseCur;          /* Base cursor number */
  int iDataCur;          /* Cursor for the canonical data btree */
  int iIdxCur;           /* Cursor for the first index */
  sqlite3 *db;           /* The database structure */
@@ -108,11 +109,11 @@ void sqlite3Update(
  int *aXRef = 0;        /* aXRef[i] is the index in pChanges->a[] of the
                         ** an expression for the i-th column of the table.
                         ** aXRef[i]==-1 if the i-th column is not changed. */
+  u8 *aToOpen;           /* 1 for tables and indices to be opened */
  u8 chngPk;             /* PRIMARY KEY changed in a WITHOUT ROWID table */
  u8 chngRowid;          /* Rowid changed in a normal table */
  u8 chngKey;            /* Either chngPk or chngRowid */
  Expr *pRowidExpr = 0;  /* Expression defining the new record number */
-  int openAll = 0;       /* True if all indices need to be opened */
  AuthContext sContext;  /* The authorization context */
  NameContext sNC;       /* The name-context to resolve expressions in */
  int iDb;               /* Database containing the table being updated */
@@ -176,16 +177,13 @@ void sqlite3Update(
  if( sqlite3IsReadOnly(pParse, pTab, tmask) ){
    goto update_cleanup;
  }
-  aXRef = sqlite3DbMallocRaw(db, sizeof(int) * pTab->nCol );
-  if( aXRef==0 ) goto update_cleanup;
-  for(i=0; i<pTab->nCol; i++) aXRef[i] = -1;

  /* Allocate a cursors for the main database table and for all indices.
  ** The index cursors might not be used, but if they are used they
  ** need to occur right after the database cursor.  So go ahead and
  ** allocate enough space, just in case.
  */
-  pTabList->a[0].iCursor = iDataCur = pParse->nTab++;
+  pTabList->a[0].iCursor = iBaseCur = iDataCur = pParse->nTab++;
  iIdxCur = iDataCur+1;
  pPk = HasRowid(pTab) ? 0 : sqlite3PrimaryKeyIndex(pTab);
  for(nIdx=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, nIdx++){
@@ -196,6 +194,17 @@ void sqlite3Update(
    pParse->nTab++;
  }

+  /* Allocate space for aXRef[], aRegIdx[], and aToOpen[].  
+  ** Initialize aXRef[] and aToOpen[] to their default values.
+  */
+  aXRef = sqlite3DbMallocRaw(db, sizeof(int) * (pTab->nCol+nIdx) + nIdx+2 );
+  if( aXRef==0 ) goto update_cleanup;
+  aRegIdx = aXRef+pTab->nCol;
+  aToOpen = (u8*)(aRegIdx+nIdx);
+  memset(aToOpen, 1, nIdx+1);
+  aToOpen[nIdx+1] = 0;
+  for(i=0; i<pTab->nCol; i++) aXRef[i] = -1;
+
  /* Initialize the name-context */
  memset(&sNC, 0, sizeof(sNC));
  sNC.pParse = pParse;
@@ -254,17 +263,17 @@ void sqlite3Update(
  assert( chngPk==0 || chngPk==1 );
  chngKey = chngRowid + chngPk;

+  /* The SET expressions are not actually used inside the WHERE loop.
+  ** So reset the colUsed mask
+  */
+  pTabList->a[0].colUsed = 0;
+
  hasFK = sqlite3FkRequired(pParse, pTab, aXRef, chngKey);

-  /* Allocate memory for the array aRegIdx[].  There is one entry in the
-  ** array for each index associated with table being updated.  Fill in
-  ** the value with a register number for indices that are to be used
-  ** and with zero for unused indices.
+  /* There is one entry in the aRegIdx[] array for each index on the table
+  ** being updated.  Fill in aRegIdx[] with a register number that will hold
+  ** the key for accessing each index.  
  */
-  if( nIdx>0 ){
-    aRegIdx = sqlite3DbMallocRaw(db, sizeof(Index*) * nIdx );
-    if( aRegIdx==0 ) goto update_cleanup;
-  }
  for(j=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, j++){
    int reg;
    if( chngKey || hasFK || pIdx->pPartIdxWhere || pIdx==pPk ){
@@ -278,6 +287,7 @@ void sqlite3Update(
        }
      }
    }
+    if( reg==0 ) aToOpen[j+1] = 0;
    aRegIdx[j] = reg;
  }

@@ -401,42 +411,30 @@ void sqlite3Update(
    ** action, then we need to open all indices because we might need
    ** to be deleting some records.
    */
-    if( !okOnePass && HasRowid(pTab) ){
-      sqlite3OpenTable(pParse, iDataCur, iDb, pTab, OP_OpenWrite); 
-    }
-    sqlite3TableLock(pParse, iDb, pTab->tnum, 1, pTab->zName);
    if( onError==OE_Replace ){
-      openAll = 1;
+      memset(aToOpen, 1, nIdx+1);
    }else{
-      openAll = 0;
      for(pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext){
        if( pIdx->onError==OE_Replace ){
-          openAll = 1;
+          memset(aToOpen, 1, nIdx+1);
          break;
        }
      }
    }
-    for(i=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, i++){
-      int iThisCur = iIdxCur+i;
-      assert( aRegIdx );
-      if( (openAll || aRegIdx[i]>0)
-       && iThisCur!=aiCurOnePass[1]
-      ){
-        assert( iThisCur!=aiCurOnePass[0] );
-        sqlite3VdbeAddOp3(v, OP_OpenWrite, iThisCur, pIdx->tnum, iDb);
-        sqlite3VdbeSetP4KeyInfo(pParse, pIdx);
-        assert( pParse->nTab>iThisCur );
-        VdbeComment((v, "%s", pIdx->zName));
-        if( okOnePass && pPk && iThisCur==iDataCur ){
-          sqlite3VdbeAddOp4Int(v, OP_NotFound, iDataCur, labelBreak,
-                               regKey, nKey);
-        }
-      }
+    if( okOnePass ){
+      if( aiCurOnePass[0]>=0 ) aToOpen[aiCurOnePass[0]-iBaseCur] = 0;
+      if( aiCurOnePass[1]>=0 ) aToOpen[aiCurOnePass[1]-iBaseCur] = 0;
    }
+    sqlite3OpenTableAndIndices(pParse, pTab, OP_OpenWrite, iBaseCur, aToOpen,
+                               0, 0);
  }

  /* Top of the update loop */
  if( okOnePass ){
+    if( aToOpen[iDataCur-iBaseCur] ){
+      assert( pPk!=0 );
+      sqlite3VdbeAddOp4Int(v, OP_NotFound, iDataCur, labelBreak, regKey, nKey);
+    }
    labelContinue = labelBreak;
    sqlite3VdbeAddOp2(v, OP_IsNull, pPk ? regKey : regOldRowid, labelBreak);
  }else if( pPk ){
@@ -581,11 +579,7 @@ void sqlite3Update(
      sqlite3VdbeAddOp2(v, OP_Delete, iDataCur, 0);
    }
    if( bReplace || chngKey ){
-      if( sqlite3VdbeCurrentAddr(v)==j1+1 ){
-        sqlite3VdbeChangeToNoop(v, j1);
-      }else{
-        sqlite3VdbeJumpHere(v, j1);
-      }
+      sqlite3VdbeJumpHere(v, j1);
    }

    if( hasFK ){
@@ -629,7 +623,7 @@ void sqlite3Update(
  /* Close all tables */
  for(i=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, i++){
    assert( aRegIdx );
-    if( openAll || aRegIdx[i]>0 ){
+    if( aToOpen[i+1] ){
      sqlite3VdbeAddOp2(v, OP_Close, iIdxCur+i, 0);
    }
  }
@@ -656,8 +650,7 @@ void sqlite3Update(

 update_cleanup:
  sqlite3AuthContextPop(&sContext);
-  sqlite3DbFree(db, aRegIdx);
-  sqlite3DbFree(db, aXRef);
+  sqlite3DbFree(db, aXRef); /* Also frees aRegIdx[] and aToOpen[] */
  sqlite3SrcListDelete(db, pTabList);
  sqlite3ExprListDelete(db, pChanges);
  sqlite3ExprDelete(db, pWhere);
@@ -115,18 +115,17 @@ int sqlite3Strlen30(const char *z){
 ** to NULL.
 */
 void sqlite3Error(sqlite3 *db, int err_code, const char *zFormat, ...){
-  if( db && (db->pErr || (db->pErr = sqlite3ValueNew(db))!=0) ){
-    db->errCode = err_code;
-    if( zFormat ){
-      char *z;
-      va_list ap;
-      va_start(ap, zFormat);
-      z = sqlite3VMPrintf(db, zFormat, ap);
-      va_end(ap);
-      sqlite3ValueSetStr(db->pErr, -1, z, SQLITE_UTF8, SQLITE_DYNAMIC);
-    }else{
-      sqlite3ValueSetStr(db->pErr, 0, 0, SQLITE_UTF8, SQLITE_STATIC);
-    }
+  assert( db!=0 );
+  db->errCode = err_code;
+  if( zFormat && (db->pErr || (db->pErr = sqlite3ValueNew(db))!=0) ){
+    char *z;
+    va_list ap;
+    va_start(ap, zFormat);
+    z = sqlite3VMPrintf(db, zFormat, ap);
+    va_end(ap);
+    sqlite3ValueSetStr(db->pErr, -1, z, SQLITE_UTF8, SQLITE_DYNAMIC);
+  }else if( db->pErr ){
+    sqlite3ValueSetNull(db->pErr);
  }
 }

@@ -465,12 +464,12 @@ static int compare2pow63(const char *zNum, int incr){
 ** If the zNum value is representable as a 64-bit twos-complement 
 ** integer, then write that value into *pNum and return 0.
 **
-** If zNum is exactly 9223372036854665808, return 2.  This special
-** case is broken out because while 9223372036854665808 cannot be a 
-** signed 64-bit integer, its negative -9223372036854665808 can be.
+** If zNum is exactly 9223372036854775808, return 2.  This special
+** case is broken out because while 9223372036854775808 cannot be a 
+** signed 64-bit integer, its negative -9223372036854775808 can be.
 **
 ** If zNum is too big for a 64-bit integer and is not
-** 9223372036854665808  or if zNum contains any non-numeric text,
+** 9223372036854775808  or if zNum contains any non-numeric text,
 ** then return 1.
 **
 ** length is the number of bytes in the string (bytes, not characters).
@@ -512,7 +511,7 @@ int sqlite3Atoi64(const char *zNum, i64 *pNum, int length, u8 enc){
    u = u*10 + c - '0';
  }
  if( u>LARGEST_INT64 ){
-    *pNum = SMALLEST_INT64;
+    *pNum = neg ? SMALLEST_INT64 : LARGEST_INT64;
  }else if( neg ){
    *pNum = -(i64)u;
  }else{
@@ -543,7 +542,6 @@ int sqlite3Atoi64(const char *zNum, i64 *pNum, int length, u8 enc){
      /* zNum is exactly 9223372036854775808.  Fits if negative.  The
      ** special case 2 overflow if positive */
      assert( u-1==LARGEST_INT64 );
-      assert( (*pNum)==SMALLEST_INT64 );
      return neg ? 0 : 2;
    }
  }
@@ -1282,6 +1280,8 @@ u64 sqlite3LogEstToInt(LogEst x){
  x /= 10;
  if( n>=5 ) n -= 2;
  else if( n>=1 ) n -= 1;
-  if( x>=3 ) return (n+8)<<(x-3);
+  if( x>=3 ){
+    return x>60 ? (u64)LARGEST_INT64 : (n+8)<<(x-3);
+  }
  return (n+8)>>(3-x);
 }
@@ -36,7 +36,7 @@ typedef struct VdbeOp Op;
 /*
 ** Boolean values
 */
-typedef unsigned char Bool;
+typedef unsigned Bool;

 /* Opaque type used by code in vdbesort.c */
 typedef struct VdbeSorter VdbeSorter;
@@ -53,6 +53,9 @@ typedef struct AuxData AuxData;
 ** loop over all entries of the Btree.  You can also insert new BTree
 ** entries or retrieve the key or data from the entry that the cursor
 ** is currently pointing to.
+**
+** Cursors can also point to virtual tables, sorters, or "pseudo-tables".
+** A pseudo-table is a single-row table implemented by registers.
 ** 
 ** Every cursor that the virtual machine has open is represented by an
 ** instance of the following structure.
@@ -61,30 +64,24 @@ struct VdbeCursor {
  BtCursor *pCursor;    /* The cursor structure of the backend */
  Btree *pBt;           /* Separate file holding temporary table */
  KeyInfo *pKeyInfo;    /* Info about index keys needed by index cursors */
-  int iDb;              /* Index of cursor database in db->aDb[] (or -1) */
+  int seekResult;       /* Result of previous sqlite3BtreeMoveto() */
  int pseudoTableReg;   /* Register holding pseudotable content. */
-  int nField;           /* Number of fields in the header */
-  Bool zeroed;          /* True if zeroed out and ready for reuse */
-  Bool rowidIsValid;    /* True if lastRowid is valid */
-  Bool atFirst;         /* True if pointing to first entry */
-  Bool useRandomRowid;  /* Generate new record numbers semi-randomly */
-  Bool nullRow;         /* True if pointing to a row with no data */
-  Bool deferredMoveto;  /* A call to sqlite3BtreeMoveto() is needed */
-  Bool isTable;         /* True if a table requiring integer keys */
-  Bool isIndex;         /* True if an index containing keys only - no data */
-  Bool isOrdered;       /* True if the underlying table is BTREE_UNORDERED */
-  Bool isSorter;        /* True if a new-style sorter */
-  Bool multiPseudo;     /* Multi-register pseudo-cursor */
+  i16 nField;           /* Number of fields in the header */
+  u16 nHdrParsed;       /* Number of header fields parsed so far */
+  i8 iDb;               /* Index of cursor database in db->aDb[] (or -1) */
+  u8 nullRow;           /* True if pointing to a row with no data */
+  u8 rowidIsValid;      /* True if lastRowid is valid */
+  u8 deferredMoveto;    /* A call to sqlite3BtreeMoveto() is needed */
+  Bool useRandomRowid:1;/* Generate new record numbers semi-randomly */
+  Bool isTable:1;       /* True if a table requiring integer keys */
+  Bool isOrdered:1;     /* True if the underlying table is BTREE_UNORDERED */
+  Bool multiPseudo:1;   /* Multi-register pseudo-cursor */
  sqlite3_vtab_cursor *pVtabCursor;  /* The cursor for a virtual table */
-  const sqlite3_module *pModule;     /* Module for cursor pVtabCursor */
  i64 seqCount;         /* Sequence counter */
  i64 movetoTarget;     /* Argument to the deferred sqlite3BtreeMoveto() */
-  i64 lastRowid;        /* Last rowid from a Next or NextIdx operation */
+  i64 lastRowid;        /* Rowid being deleted by OP_Delete */
  VdbeSorter *pSorter;  /* Sorter object for OP_SorterOpen cursors */

-  /* Result of last sqlite3BtreeMoveto() done by an OP_NotExists */
-  int seekResult;
-
  /* Cached information about the header for the data record that the
  ** cursor is currently pointing to.  Only valid if cacheStatus matches
  ** Vdbe.cacheCtr.  Vdbe.cacheCtr will never take on the value of
@@ -95,10 +92,14 @@ struct VdbeCursor {
  ** be NULL.
  */
  u32 cacheStatus;      /* Cache is valid if this matches Vdbe.cacheCtr */
-  int payloadSize;      /* Total number of bytes in the record */
-  u32 *aType;           /* Type values for all entries in the record */
-  u32 *aOffset;         /* Cached offsets to the start of each columns data */
-  u8 *aRow;             /* Data for the current row, if all on one page */
+  u32 payloadSize;      /* Total number of bytes in the record */
+  u32 szRow;            /* Byte available in aRow */
+  u32 iHdrOffset;       /* Offset to next unparsed byte of the header */
+  const u8 *aRow;       /* Data for the current row, if all on one page */
+  u32 aType[1];         /* Type values for all entries in the record */
+  /* 2*nField extra array elements allocated for aType[], beyond the one
+  ** static element declared in the structure.  nField total array slots for
+  ** aType[] and nField+1 array slots for aOffset[] */
 };
 typedef struct VdbeCursor VdbeCursor;

@@ -388,7 +389,7 @@ void sqlite3VdbePrintOp(FILE*, int, Op*);
 #endif
 u32 sqlite3VdbeSerialTypeLen(u32);
 u32 sqlite3VdbeSerialType(Mem*, int);
-u32 sqlite3VdbeSerialPut(unsigned char*, int, Mem*, int);
+u32 sqlite3VdbeSerialPut(unsigned char*, Mem*, u32);
 u32 sqlite3VdbeSerialGet(const unsigned char*, u32, Mem*);
 void sqlite3VdbeDeleteAuxData(Vdbe*, int, int);

@@ -423,7 +424,7 @@ double sqlite3VdbeRealValue(Mem*);
 void sqlite3VdbeIntegerAffinity(Mem*);
 int sqlite3VdbeMemRealify(Mem*);
 int sqlite3VdbeMemNumerify(Mem*);
-int sqlite3VdbeMemFromBtree(BtCursor*,int,int,int,Mem*);
+int sqlite3VdbeMemFromBtree(BtCursor*,u32,u32,int,Mem*);
 void sqlite3VdbeMemRelease(Mem *p);
 void sqlite3VdbeMemReleaseExternal(Mem *p);
 #define VdbeMemRelease(X)  \
@@ -486,7 +486,7 @@ int sqlite3_step(sqlite3_stmt *pStmt){
    v->doingRerun = 1;
    assert( v->expired==0 );
  }
-  if( rc2!=SQLITE_OK && ALWAYS(v->isPrepareV2) && ALWAYS(db->pErr) ){
+  if( rc2!=SQLITE_OK ){
    /* This case occurs after failing to recompile an sql statement. 
    ** The error message from the SQL compiler has already been loaded 
    ** into the database handle. This block copies the error message 
@@ -496,6 +496,7 @@ int sqlite3_step(sqlite3_stmt *pStmt){
    ** sqlite3_errmsg() and sqlite3_errcode().
    */
    const char *zErr = (const char *)sqlite3_value_text(db->pErr); 
+    assert( zErr!=0 || db->mallocFailed );
    sqlite3DbFree(db, v->zErrMsg);
    if( !db->mallocFailed ){
      v->zErrMsg = sqlite3DbStrDup(db, zErr);
@@ -453,12 +453,14 @@ static void resolveP2Values(Vdbe *p, int *pMaxFuncArgs){
      }
 #endif
      case OP_Next:
+      case OP_NextIfOpen:
      case OP_SorterNext: {
        pOp->p4.xAdvance = sqlite3BtreeNext;
        pOp->p4type = P4_ADVANCE;
        break;
      }
-      case OP_Prev: {
+      case OP_Prev:
+      case OP_PrevIfOpen: {
        pOp->p4.xAdvance = sqlite3BtreePrevious;
        pOp->p4type = P4_ADVANCE;
        break;
@@ -1674,7 +1676,7 @@ void sqlite3VdbeFreeCursor(Vdbe *p, VdbeCursor *pCx){
 #ifndef SQLITE_OMIT_VIRTUALTABLE
  if( pCx->pVtabCursor ){
    sqlite3_vtab_cursor *pVtabCursor = pCx->pVtabCursor;
-    const sqlite3_module *pModule = pCx->pModule;
+    const sqlite3_module *pModule = pVtabCursor->pVtab->pModule;
    p->inVtabMethod = 1;
    pModule->xClose(pVtabCursor);
    p->inVtabMethod = 0;
@@ -2418,6 +2420,7 @@ int sqlite3VdbeTransferError(Vdbe *p){
  if( p->zErrMsg ){
    u8 mallocFailed = db->mallocFailed;
    sqlite3BeginBenignMalloc();
+    if( db->pErr==0 ) db->pErr = sqlite3ValueNew(db);
    sqlite3ValueSetStr(db->pErr, -1, p->zErrMsg, SQLITE_UTF8, SQLITE_TRANSIENT);
    sqlite3EndBenignMalloc();
    db->mallocFailed = mallocFailed;
@@ -2486,8 +2489,7 @@ int sqlite3VdbeReset(Vdbe *p){
    ** to sqlite3_step(). For consistency (since sqlite3_step() was
    ** called), set the database error in this case as well.
    */
-    sqlite3Error(db, p->rc, 0);
-    sqlite3ValueSetStr(db->pErr, -1, p->zErrMsg, SQLITE_UTF8, SQLITE_TRANSIENT);
+    sqlite3Error(db, p->rc, p->zErrMsg ? "%s" : 0, p->zErrMsg);
    sqlite3DbFree(db, p->zErrMsg);
    p->zErrMsg = 0;
  }
@@ -2658,7 +2660,7 @@ int sqlite3VdbeCursorMoveto(VdbeCursor *p){
 #endif
    p->deferredMoveto = 0;
    p->cacheStatus = CACHE_STALE;
-  }else if( ALWAYS(p->pCursor) ){
+  }else if( p->pCursor ){
    int hasMoved;
    int rc = sqlite3BtreeCursorHasMoved(p->pCursor, &hasMoved);
    if( rc ) return rc;
@@ -2825,21 +2827,15 @@ static u64 floatSwap(u64 in){
 ** buf. It is assumed that the caller has allocated sufficient space.
 ** Return the number of bytes written.
 **
-** nBuf is the amount of space left in buf[].  nBuf must always be
-** large enough to hold the entire field.  Except, if the field is
-** a blob with a zero-filled tail, then buf[] might be just the right
-** size to hold everything except for the zero-filled tail.  If buf[]
-** is only big enough to hold the non-zero prefix, then only write that
-** prefix into buf[].  But if buf[] is large enough to hold both the
-** prefix and the tail then write the prefix and set the tail to all
-** zeros.
+** nBuf is the amount of space left in buf[].  The caller is responsible
+** for allocating enough space to buf[] to hold the entire field, exclusive
+** of the pMem->u.nZero bytes for a MEM_Zero value.
 **
 ** Return the number of bytes actually written into buf[].  The number
 ** of bytes in the zero-filled tail is included in the return value only
 ** if those bytes were zeroed in buf[].
 */ 
-u32 sqlite3VdbeSerialPut(u8 *buf, int nBuf, Mem *pMem, int file_format){
-  u32 serial_type = sqlite3VdbeSerialType(pMem, file_format);
+u32 sqlite3VdbeSerialPut(u8 *buf, Mem *pMem, u32 serial_type){
  u32 len;

  /* Integer and Real */
@@ -2854,7 +2850,6 @@ u32 sqlite3VdbeSerialPut(u8 *buf, int nBuf, Mem *pMem, int file_format){
      v = pMem->u.i;
    }
    len = i = sqlite3VdbeSerialTypeLen(serial_type);
-    assert( len<=(u32)nBuf );
    while( i-- ){
      buf[i] = (u8)(v&0xFF);
      v >>= 8;
@@ -2866,17 +2861,8 @@ u32 sqlite3VdbeSerialPut(u8 *buf, int nBuf, Mem *pMem, int file_format){
  if( serial_type>=12 ){
    assert( pMem->n + ((pMem->flags & MEM_Zero)?pMem->u.nZero:0)
             == (int)sqlite3VdbeSerialTypeLen(serial_type) );
-    assert( pMem->n<=nBuf );
    len = pMem->n;
    memcpy(buf, pMem->z, len);
-    if( pMem->flags & MEM_Zero ){
-      len += pMem->u.nZero;
-      assert( nBuf>=0 );
-      if( len > (u32)nBuf ){
-        len = (u32)nBuf;
-      }
-      memset(&buf[pMem->n], 0, len-pMem->n);
-    }
    return len;
  }

@@ -2966,15 +2952,12 @@ u32 sqlite3VdbeSerialGet(
      return 0;
    }
    default: {
+      static const u16 aFlag[] = { MEM_Blob|MEM_Ephem, MEM_Str|MEM_Ephem };
      u32 len = (serial_type-12)/2;
      pMem->z = (char *)buf;
      pMem->n = len;
      pMem->xDel = 0;
-      if( serial_type&0x01 ){
-        pMem->flags = MEM_Str | MEM_Ephem;
-      }else{
-        pMem->flags = MEM_Blob | MEM_Ephem;
-      }
+      pMem->flags = aFlag[serial_type&1];
      return len;
    }
  }
@@ -3113,9 +3096,11 @@ int sqlite3VdbeRecordCompare(
  
  idx1 = getVarint32(aKey1, szHdr1);
  d1 = szHdr1;
-  assert( pKeyInfo->nField+pKeyInfo->nXField>=pPKey2->nField );
+  assert( pKeyInfo->nField+pKeyInfo->nXField>=pPKey2->nField || CORRUPT_DB );
  assert( pKeyInfo->aSortOrder!=0 );
-  while( idx1<szHdr1 && i<pPKey2->nField ){
+  assert( pKeyInfo->nField>0 );
+  assert( idx1<=szHdr1 || CORRUPT_DB );
+  do{
    u32 serial_type1;

    /* Read the serial types for the next element in each key. */
@@ -3148,7 +3133,7 @@ int sqlite3VdbeRecordCompare(
      return rc;
    }
    i++;
-  }
+  }while( idx1<szHdr1 && i<pPKey2->nField );

  /* No memory allocation is ever used on mem1.  Prove this using
  ** the following assert().  If the assert() fails, it indicates a
@@ -3206,7 +3191,7 @@ int sqlite3VdbeIdxRowid(sqlite3 *db, BtCursor *pCur, i64 *rowid){

  /* Read in the complete content of the index entry */
  memset(&m, 0, sizeof(m));
-  rc = sqlite3VdbeMemFromBtree(pCur, 0, (int)nCellKey, 1, &m);
+  rc = sqlite3VdbeMemFromBtree(pCur, 0, (u32)nCellKey, 1, &m);
  if( rc ){
    return rc;
  }
@@ -3284,7 +3269,7 @@ int sqlite3VdbeIdxKeyCompare(
    return SQLITE_CORRUPT_BKPT;
  }
  memset(&m, 0, sizeof(m));
-  rc = sqlite3VdbeMemFromBtree(pC->pCursor, 0, (int)nCellKey, 1, &m);
+  rc = sqlite3VdbeMemFromBtree(pC->pCursor, 0, (u32)nCellKey, 1, &m);
  if( rc ){
    return rc;
  }
@@ -64,7 +64,8 @@ static int blobSeekToRow(Incrblob *p, sqlite3_int64 iRow, char **pzErr){

  rc = sqlite3_step(p->pStmt);
  if( rc==SQLITE_ROW ){
-    u32 type = v->apCsr[0]->aType[p->iCol];
+    VdbeCursor *pC = v->apCsr[0];
+    u32 type = pC->aType[p->iCol];
    if( type<12 ){
      zErr = sqlite3MPrintf(p->db, "cannot open value of type %s",
          type==0?"null": type==7?"real": "integer"
@@ -73,9 +74,9 @@ static int blobSeekToRow(Incrblob *p, sqlite3_int64 iRow, char **pzErr){
      sqlite3_finalize(p->pStmt);
      p->pStmt = 0;
    }else{
-      p->iOffset = v->apCsr[0]->aOffset[p->iCol];
+      p->iOffset = pC->aType[p->iCol + pC->nField];
      p->nByte = sqlite3VdbeSerialTypeLen(type);
-      p->pCsr =  v->apCsr[0]->pCursor;
+      p->pCsr =  pC->pCursor;
      sqlite3BtreeEnterCursor(p->pCsr);
      sqlite3BtreeCacheOverflow(p->pCsr);
      sqlite3BtreeLeaveCursor(p->pCsr);
@@ -59,18 +59,14 @@ int sqlite3VdbeChangeEncoding(Mem *pMem, int desiredEnc){

 /*
 ** Make sure pMem->z points to a writable allocation of at least 
-** n bytes.
+** min(n,32) bytes.
 **
-** If the third argument passed to this function is true, then memory
-** cell pMem must contain a string or blob. In this case the content is
-** preserved. Otherwise, if the third parameter to this function is false,
-** any current string or blob value may be discarded.
-**
-** This function sets the MEM_Dyn flag and clears any xDel callback.
-** It also clears MEM_Ephem and MEM_Static. If the preserve flag is 
-** not set, Mem.n is zeroed.
+** If the bPreserve argument is true, then copy of the content of
+** pMem->z into the new allocation.  pMem must be either a string or
+** blob if bPreserve is true.  If bPreserve is false, any prior content
+** in pMem->z is discarded.
 */
-int sqlite3VdbeMemGrow(Mem *pMem, int n, int preserve){
+int sqlite3VdbeMemGrow(Mem *pMem, int n, int bPreserve){
  assert( 1 >=
    ((pMem->zMalloc && pMem->zMalloc==pMem->z) ? 1 : 0) +
    (((pMem->flags&MEM_Dyn)&&pMem->xDel) ? 1 : 0) + 
@@ -79,37 +75,39 @@ int sqlite3VdbeMemGrow(Mem *pMem, int n, int preserve){
  );
  assert( (pMem->flags&MEM_RowSet)==0 );

-  /* If the preserve flag is set to true, then the memory cell must already
+  /* If the bPreserve flag is set to true, then the memory cell must already
  ** contain a valid string or blob value.  */
-  assert( preserve==0 || pMem->flags&(MEM_Blob|MEM_Str) );
+  assert( bPreserve==0 || pMem->flags&(MEM_Blob|MEM_Str) );
+  testcase( bPreserve && pMem->z==0 );

-  if( n<32 ) n = 32;
-  if( sqlite3DbMallocSize(pMem->db, pMem->zMalloc)<n ){
-    if( preserve && pMem->z==pMem->zMalloc ){
+  if( pMem->zMalloc==0 || sqlite3DbMallocSize(pMem->db, pMem->zMalloc)<n ){
+    if( n<32 ) n = 32;
+    if( bPreserve && pMem->z==pMem->zMalloc ){
      pMem->z = pMem->zMalloc = sqlite3DbReallocOrFree(pMem->db, pMem->z, n);
-      preserve = 0;
+      bPreserve = 0;
    }else{
      sqlite3DbFree(pMem->db, pMem->zMalloc);
      pMem->zMalloc = sqlite3DbMallocRaw(pMem->db, n);
    }
+    if( pMem->zMalloc==0 ){
+      sqlite3VdbeMemRelease(pMem);
+      pMem->flags = MEM_Null;  
+      return SQLITE_NOMEM;
+    }
  }

-  if( pMem->z && preserve && pMem->zMalloc && pMem->z!=pMem->zMalloc ){
+  if( pMem->z && bPreserve && pMem->z!=pMem->zMalloc ){
    memcpy(pMem->zMalloc, pMem->z, pMem->n);
  }
-  if( pMem->flags&MEM_Dyn && pMem->xDel ){
+  if( (pMem->flags&MEM_Dyn)!=0 && pMem->xDel ){
    assert( pMem->xDel!=SQLITE_DYNAMIC );
    pMem->xDel((void *)(pMem->z));
  }

  pMem->z = pMem->zMalloc;
-  if( pMem->z==0 ){
-    pMem->flags = MEM_Null;
-  }else{
-    pMem->flags &= ~(MEM_Ephem|MEM_Static);
-  }
+  pMem->flags &= ~(MEM_Ephem|MEM_Static);
  pMem->xDel = 0;
-  return (pMem->z ? SQLITE_OK : SQLITE_NOMEM);
+  return SQLITE_OK;
 }

 /*
@@ -295,23 +293,18 @@ void sqlite3VdbeMemReleaseExternal(Mem *p){
 */
 void sqlite3VdbeMemRelease(Mem *p){
  VdbeMemRelease(p);
-  sqlite3DbFree(p->db, p->zMalloc);
+  if( p->zMalloc ){
+    sqlite3DbFree(p->db, p->zMalloc);
+    p->zMalloc = 0;
+  }
  p->z = 0;
-  p->zMalloc = 0;
-  p->xDel = 0;
+  assert( p->xDel==0 );  /* Zeroed by VdbeMemRelease() above */
 }

 /*
 ** Convert a 64-bit IEEE double into a 64-bit signed integer.
-** If the double is too large, return 0x8000000000000000.
-**
-** Most systems appear to do this simply by assigning
-** variables and without the extra range tests.  But
-** there are reports that windows throws an expection
-** if the floating point value is out of range. (See ticket #2880.)
-** Because we do not completely understand the problem, we will
-** take the conservative approach and always do range tests
-** before attempting the conversion.
+** If the double is out of range of a 64-bit signed integer then
+** return the closest available 64-bit signed integer.
 */
 static i64 doubleToInt64(double r){
 #ifdef SQLITE_OMIT_FLOATING_POINT
@@ -328,14 +321,10 @@ static i64 doubleToInt64(double r){
  static const i64 maxInt = LARGEST_INT64;
  static const i64 minInt = SMALLEST_INT64;

-  if( r<(double)minInt ){
-    return minInt;
-  }else if( r>(double)maxInt ){
-    /* minInt is correct here - not maxInt.  It turns out that assigning
-    ** a very large positive number to an integer results in a very large
-    ** negative integer.  This makes no sense, but it is what x86 hardware
-    ** does so for compatibility we will do the same in software. */
+  if( r<=(double)minInt ){
    return minInt;
+  }else if( r>=(double)maxInt ){
+    return maxInt;
  }else{
    return (i64)r;
  }
@@ -417,17 +406,11 @@ void sqlite3VdbeIntegerAffinity(Mem *pMem){
  **
  ** The second and third terms in the following conditional enforces
  ** the second condition under the assumption that addition overflow causes
-  ** values to wrap around.  On x86 hardware, the third term is always
-  ** true and could be omitted.  But we leave it in because other
-  ** architectures might behave differently.
+  ** values to wrap around.
  */
  if( pMem->r==(double)pMem->u.i
   && pMem->u.i>SMALLEST_INT64
-#if defined(__i486__) || defined(__x86_64__)
-   && ALWAYS(pMem->u.i<LARGEST_INT64)
-#else
   && pMem->u.i<LARGEST_INT64
-#endif
  ){
    pMem->flags |= MEM_Int;
  }
@@ -499,6 +482,9 @@ void sqlite3VdbeMemSetNull(Mem *pMem){
  MemSetTypeFlag(pMem, MEM_Null);
  pMem->type = SQLITE_NULL;
 }
+void sqlite3ValueSetNull(sqlite3_value *p){
+  sqlite3VdbeMemSetNull((Mem*)p); 
+}

 /*
 ** Delete any previous value and set the value to be a BLOB of length
@@ -896,13 +882,13 @@ int sqlite3MemCompare(const Mem *pMem1, const Mem *pMem2, const CollSeq *pColl){
 */
 int sqlite3VdbeMemFromBtree(
  BtCursor *pCur,   /* Cursor pointing at record to retrieve. */
-  int offset,       /* Offset from the start of data to return bytes from. */
-  int amt,          /* Number of bytes to return. */
+  u32 offset,       /* Offset from the start of data to return bytes from. */
+  u32 amt,          /* Number of bytes to return. */
  int key,          /* If true, retrieve from the btree key, not data. */
  Mem *pMem         /* OUT: Return data in this Mem structure. */
 ){
  char *zData;        /* Data from the btree layer */
-  int available = 0;  /* Number of bytes available on the local btree page */
+  u32 available = 0;  /* Number of bytes available on the local btree page */
  int rc = SQLITE_OK; /* Return code */

  assert( sqlite3BtreeCursorIsValid(pCur) );
@@ -917,7 +903,7 @@ int sqlite3VdbeMemFromBtree(
  }
  assert( zData!=0 );

-  if( offset+amt<=available && (pMem->flags&MEM_Dyn)==0 ){
+  if( offset+amt<=available ){
    sqlite3VdbeMemRelease(pMem);
    pMem->z = &zData[offset];
    pMem->flags = MEM_Blob|MEM_Ephem;
@@ -936,7 +922,7 @@ int sqlite3VdbeMemFromBtree(
      sqlite3VdbeMemRelease(pMem);
    }
  }
-  pMem->n = amt;
+  pMem->n = (int)amt;

  return rc;
 }
@@ -1033,7 +1019,7 @@ static sqlite3_value *valueNew(sqlite3 *db, struct ValueNewStat4Ctx *p){
      int i;                      /* Counter variable */
      int nCol = pIdx->nColumn;   /* Number of index columns including rowid */
  
-      nByte = sizeof(Mem) * nCol + sizeof(UnpackedRecord);
+      nByte = sizeof(Mem) * nCol + ROUND8(sizeof(UnpackedRecord));
      pRec = (UnpackedRecord*)sqlite3DbMallocZero(db, nByte);
      if( pRec ){
        pRec->pKeyInfo = sqlite3KeyInfoOfIndex(p->pParse, pIdx);
@@ -1041,7 +1027,7 @@ static sqlite3_value *valueNew(sqlite3 *db, struct ValueNewStat4Ctx *p){
          assert( pRec->pKeyInfo->nField+pRec->pKeyInfo->nXField==nCol );
          assert( pRec->pKeyInfo->enc==ENC(db) );
          pRec->flags = UNPACKED_PREFIX_MATCH;
-          pRec->aMem = (Mem *)&pRec[1];
+          pRec->aMem = (Mem *)((u8*)pRec + ROUND8(sizeof(UnpackedRecord)));
          for(i=0; i<nCol; i++){
            pRec->aMem[i].flags = MEM_Null;
            pRec->aMem[i].type = SQLITE_NULL;
@@ -1095,16 +1081,7 @@ static int valueFromExpr(
    return SQLITE_OK;
  }
  op = pExpr->op;
-
-  /* op can only be TK_REGISTER if we have compiled with SQLITE_ENABLE_STAT4.
-  ** The ifdef here is to enable us to achieve 100% branch test coverage even
-  ** when SQLITE_ENABLE_STAT4 is omitted.
-  */
-#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
-  if( op==TK_REGISTER ) op = pExpr->op2;
-#else
  if( NEVER(op==TK_REGISTER) ) op = pExpr->op2;
-#endif

  /* Handle negative integers in a single step.  This is needed in the
  ** case when the value is -9223372036854775808.
@@ -1245,7 +1222,7 @@ static void recordFunc(
  }else{
    aRet[0] = nSerial+1;
    sqlite3PutVarint(&aRet[1], iSerial);
-    sqlite3VdbeSerialPut(&aRet[1+nSerial], nVal, argv[0], file_format);
+    sqlite3VdbeSerialPut(&aRet[1+nSerial], argv[0], iSerial);
    sqlite3_result_blob(context, aRet, nRet, SQLITE_TRANSIENT);
    sqlite3DbFree(db, aRet);
  }
@@ -1323,10 +1300,9 @@ int sqlite3Stat4ProbeSetValue(
    pVal = valueNew(db, &alloc);
    if( pVal ){
      sqlite3VdbeMemSetNull((Mem*)pVal);
-      *pbOk = 1;
    }
  }else if( pExpr->op==TK_VARIABLE
-        || (pExpr->op==TK_REGISTER && pExpr->op2==TK_VARIABLE)
+        || NEVER(pExpr->op==TK_REGISTER && pExpr->op2==TK_VARIABLE)
  ){
    Vdbe *v;
    int iBindVar = pExpr->iColumn;
@@ -1339,16 +1315,13 @@ int sqlite3Stat4ProbeSetValue(
          sqlite3ValueApplyAffinity(pVal, affinity, ENC(db));
        }
        pVal->db = pParse->db;
-        *pbOk = 1;
        sqlite3VdbeMemStoreType((Mem*)pVal);
      }
-    }else{
-      *pbOk = 0;
    }
  }else{
    rc = valueFromExpr(db, pExpr, ENC(db), affinity, &pVal, &alloc);
-    *pbOk = (pVal!=0);
  }
+  *pbOk = (pVal!=0);

  assert( pVal==0 || pVal->db==db );
  return rc;
@@ -92,6 +92,7 @@ char *sqlite3VdbeExpandSql(
      const char *zStart = zRawSql;
      while( *(zRawSql++)!='\n' && *zRawSql );
      sqlite3StrAccumAppend(&out, "-- ", 3);
+      assert( (zRawSql - zStart) > 0 );
      sqlite3StrAccumAppend(&out, zStart, (int)(zRawSql-zStart));
    }
  }else{
@@ -124,9 +125,9 @@ char *sqlite3VdbeExpandSql(
      if( pVar->flags & MEM_Null ){
        sqlite3StrAccumAppend(&out, "NULL", 4);
      }else if( pVar->flags & MEM_Int ){
-        sqlite3XPrintf(&out, "%lld", pVar->u.i);
+        sqlite3XPrintf(&out, 0, "%lld", pVar->u.i);
      }else if( pVar->flags & MEM_Real ){
-        sqlite3XPrintf(&out, "%!.15g", pVar->r);
+        sqlite3XPrintf(&out, 0, "%!.15g", pVar->r);
      }else if( pVar->flags & MEM_Str ){
        int nOut;  /* Number of bytes of the string text to include in output */
 #ifndef SQLITE_OMIT_UTF16
@@ -147,15 +148,17 @@ char *sqlite3VdbeExpandSql(
          while( nOut<pVar->n && (pVar->z[nOut]&0xc0)==0x80 ){ nOut++; }
        }
 #endif    
-        sqlite3XPrintf(&out, "'%.*q'", nOut, pVar->z);
+        sqlite3XPrintf(&out, 0, "'%.*q'", nOut, pVar->z);
 #ifdef SQLITE_TRACE_SIZE_LIMIT
-        if( nOut<pVar->n ) sqlite3XPrintf(&out, "/*+%d bytes*/", pVar->n-nOut);
+        if( nOut<pVar->n ){
+          sqlite3XPrintf(&out, 0, "/*+%d bytes*/", pVar->n-nOut);
+        }
 #endif
 #ifndef SQLITE_OMIT_UTF16
        if( enc!=SQLITE_UTF8 ) sqlite3VdbeMemRelease(&utf8);
 #endif
      }else if( pVar->flags & MEM_Zero ){
-        sqlite3XPrintf(&out, "zeroblob(%d)", pVar->u.nZero);
+        sqlite3XPrintf(&out, 0, "zeroblob(%d)", pVar->u.nZero);
      }else{
        int nOut;  /* Number of bytes of the blob to include in output */
        assert( pVar->flags & MEM_Blob );
@@ -165,11 +168,13 @@ char *sqlite3VdbeExpandSql(
        if( nOut>SQLITE_TRACE_SIZE_LIMIT ) nOut = SQLITE_TRACE_SIZE_LIMIT;
 #endif
        for(i=0; i<nOut; i++){
-          sqlite3XPrintf(&out, "%02x", pVar->z[i]&0xff);
+          sqlite3XPrintf(&out, 0, "%02x", pVar->z[i]&0xff);
        }
        sqlite3StrAccumAppend(&out, "'", 1);
 #ifdef SQLITE_TRACE_SIZE_LIMIT
-        if( nOut<pVar->n ) sqlite3XPrintf(&out, "/*+%d bytes*/", pVar->n-nOut);
+        if( nOut<pVar->n ){
+          sqlite3XPrintf(&out, 0, "/*+%d bytes*/", pVar->n-nOut);
+        }
 #endif
      }
    }
@@ -228,7 +233,7 @@ void sqlite3ExplainPrintf(Vdbe *pVdbe, const char *zFormat, ...){
      sqlite3AppendSpace(&p->str, p->aIndent[n-1]);
    }   
    va_start(ap, zFormat);
-    sqlite3VXPrintf(&p->str, 1, zFormat, ap);
+    sqlite3VXPrintf(&p->str, SQLITE_PRINTF_INTERNAL, zFormat, ap);
    va_end(ap);
  }
 }
@@ -1905,8 +1905,7 @@ static void whereKeyStats(
 #ifndef SQLITE_DEBUG
  UNUSED_PARAMETER( pParse );
 #endif
-  assert( pRec!=0 || pParse->db->mallocFailed );
-  if( pRec==0 ) return;
+  assert( pRec!=0 );
  iCol = pRec->nField - 1;
  assert( pIdx->nSample>0 );
  assert( pRec->nField>0 && iCol<pIdx->nSampleCol );
@@ -2406,7 +2405,7 @@ static int codeEqualityTerm(
      }else{
        pIn->addrInTop = sqlite3VdbeAddOp3(v, OP_Column, iTab, 0, iReg);
      }
-      pIn->eEndLoopOp = bRev ? OP_Prev : OP_Next;
+      pIn->eEndLoopOp = bRev ? OP_PrevIfOpen : OP_NextIfOpen;
      sqlite3VdbeAddOp1(v, OP_IsNull, iReg);
    }else{
      pLevel->u.in.nIn = 0;
@@ -2569,7 +2568,7 @@ static void explainAppendTerm(
  const char *zOp             /* Name of the operator */
 ){
  if( iTerm ) sqlite3StrAccumAppend(pStr, " AND ", 5);
-  sqlite3StrAccumAppend(pStr, zColumn, -1);
+  sqlite3StrAccumAppendAll(pStr, zColumn);
  sqlite3StrAccumAppend(pStr, zOp, 1);
  sqlite3StrAccumAppend(pStr, "?", 1);
 }
@@ -2615,7 +2614,7 @@ static char *explainIndexRange(sqlite3 *db, WhereLoop *pLoop, Table *pTab){
    }else{
      if( i ) sqlite3StrAccumAppend(&txt, " AND ", 5);
      sqlite3StrAccumAppend(&txt, "ANY(", 4);
-      sqlite3StrAccumAppend(&txt, z, -1);
+      sqlite3StrAccumAppendAll(&txt, z);
      sqlite3StrAccumAppend(&txt, ")", 1);
    }
  }
@@ -2756,7 +2755,7 @@ static Bitmask codeOneLoopStart(
  bRev = (pWInfo->revMask>>iLevel)&1;
  omitTable = (pLoop->wsFlags & WHERE_IDX_ONLY)!=0 
           && (pWInfo->wctrlFlags & WHERE_FORCE_TABLE)==0;
-  VdbeNoopComment((v, "Begin WHERE-loop%d: %s",iLevel,pTabItem->pTab->zName));
+  VdbeModuleComment((v, "Begin WHERE-loop%d: %s",iLevel,pTabItem->pTab->zName));

  /* Create labels for the "break" and "continue" instructions
  ** for the current loop.  Jump to addrBrk to break out of a loop.
@@ -3143,6 +3142,7 @@ static Bitmask codeOneLoopStart(
    if( (pLoop->wsFlags & (WHERE_BTM_LIMIT|WHERE_TOP_LIMIT))!=0 
     && (j = pIdx->aiColumn[nEq])>=0 
     && pIdx->pTable->aCol[j].notNull==0 
+     && (nEq || (pLoop->wsFlags & WHERE_BTM_LIMIT)==0)
    ){
      sqlite3VdbeAddOp3(v, OP_Column, iIdxCur, nEq, r1);
      VdbeComment((v, "%s", pIdx->pTable->aCol[j].zName));
@@ -3460,7 +3460,7 @@ static Bitmask codeOneLoopStart(
    if( pAlt->wtFlags & (TERM_CODED) ) continue;
    testcase( pAlt->eOperator & WO_EQ );
    testcase( pAlt->eOperator & WO_IN );
-    VdbeNoopComment((v, "begin transitive constraint"));
+    VdbeModuleComment((v, "begin transitive constraint"));
    pEAlt = sqlite3StackAllocRaw(db, sizeof(*pEAlt));
    if( pEAlt ){
      *pEAlt = *pAlt->pExpr;
@@ -3917,10 +3917,17 @@ static int whereLoopAddBtreeIndex(
  saved_nOut = pNew->nOut;
  pNew->rSetup = 0;
  rLogSize = estLog(sqlite3LogEst(pProbe->aiRowEst[0]));
+
+  /* Consider using a skip-scan if there are no WHERE clause constraints
+  ** available for the left-most terms of the index, and if the average
+  ** number of repeats in the left-most terms is at least 18.  The magic
+  ** number 18 was found by experimentation to be the payoff point where
+  ** skip-scan become faster than a full-scan.
+  */
  if( pTerm==0
   && saved_nEq==saved_nSkip
   && saved_nEq+1<pProbe->nKeyCol
-   && pProbe->aiRowEst[saved_nEq+1]>50
+   && pProbe->aiRowEst[saved_nEq+1]>=18  /* TUNING: Minimum for skip-scan */
  ){
    LogEst nIter;
    pNew->u.btree.nEq++;
@@ -5730,7 +5737,7 @@ WhereInfo *sqlite3WhereBegin(
  }

  /* Done. */
-  VdbeNoopComment((v, "Begin WHERE-core"));
+  VdbeModuleComment((v, "Begin WHERE-core"));
  return pWInfo;

  /* Jump here if malloc fails */
@@ -5757,7 +5764,7 @@ void sqlite3WhereEnd(WhereInfo *pWInfo){

  /* Generate loop termination code.
  */
-  VdbeNoopComment((v, "End WHERE-core"));
+  VdbeModuleComment((v, "End WHERE-core"));
  sqlite3ExprCacheClear(pParse);
  for(i=pWInfo->nLevel-1; i>=0; i--){
    int addr;
@@ -5803,7 +5810,7 @@ void sqlite3WhereEnd(WhereInfo *pWInfo){
      }
      sqlite3VdbeJumpHere(v, addr);
    }
-    VdbeNoopComment((v, "End WHERE-loop%d: %s", i,
+    VdbeModuleComment((v, "End WHERE-loop%d: %s", i,
                     pWInfo->pTabList->a[pLevel->iFrom].pTab->zName));
  }

@@ -805,8 +805,9 @@ do_test 16.1 {
    ANALYZE;
  }
  set nByte2 [lindex [sqlite3_db_status db SCHEMA_USED 0] 1]
+  puts -nonewline " (nByte=$nByte nByte2=$nByte2)"

-  expr {$nByte2 > $nByte+900 && $nByte2 < $nByte+1050}
+  expr {$nByte2 > $nByte+900 && $nByte2 < $nByte+1100}
 } {1}

 #-------------------------------------------------------------------------
@@ -15,7 +15,7 @@
 set testdir [file dirname $argv0]
 source $testdir/tester.tcl

-if {![info exists __GNUC__]} {
+if {![info exists __GNUC__] || [regexp arm $tcl_platform(machine)]} {
  finish_test
  return
 }
@@ -216,7 +216,7 @@ do_test autoinc-2.27 {
 } {t1 1238}
 do_test autoinc-2.28 {
  execsql {
-    UPDATE sqlite_sequence SET seq='12345678901234567890'
+    UPDATE sqlite_sequence SET seq='-12345678901234567890'
      WHERE name='t1';
    INSERT INTO t1 VALUES(NULL,6);
    SELECT * FROM t1;
@@ -1191,6 +1191,7 @@ do_test capi3-18.2 {
  sqlite3_reset $STMT
  sqlite3_errcode db
 } {SQLITE_SCHEMA}
+breakpoint
 do_test capi3-18.3 {
  sqlite3_errmsg db
 } {database schema has changed}
@@ -305,6 +305,11 @@ foreach {i conf1 cmd t0 t1 t2 t3 t4} {
 15 {}       {UPDATE OR ABORT}       1 {1 2 3 4}  1 0 1
 16 {}       {UPDATE OR ROLLBACK}    1 {1 2 3 4}  0 0 0
 } {
+
+  # When using in-memory journals, no temporary files are required for
+  # statement journals.
+  if {[permutation] == "inmemory_journal"} { set t4 0 }
+
  if {$t0} {set t1 {UNIQUE constraint failed: t1.a}}
  if {[info exists TEMP_STORE] && $TEMP_STORE==3} {
    set t3 0
@@ -25,6 +25,10 @@ source $testdir/tester.tcl
 #
 do_not_use_codec

+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
 # Construct a large database for testing.
 #
 do_test corrupt-1.1 {
@@ -23,6 +23,10 @@ source $testdir/tester.tcl
 #
 do_not_use_codec

+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
 set presql ""
 catch { set presql "$::G(perm:presql);" }
 unset -nocomplain ::G(perm:presql)
@@ -23,6 +23,10 @@ source $testdir/tester.tcl
 #
 do_not_use_codec

+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
 # We must have the page_size pragma for these tests to work.
 #
 ifcapable !pager_pragmas||direct_read {
@@ -23,6 +23,10 @@ source $testdir/tester.tcl
 #
 do_not_use_codec

+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
 # We must have the page_size pragma for these tests to work.
 #
 ifcapable !pager_pragmas {
@@ -19,6 +19,10 @@
 set testdir [file dirname $argv0]
 source $testdir/tester.tcl

+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
 # We must have the page_size pragma for these tests to work.
 #
 ifcapable !pager_pragmas {
@@ -24,6 +24,10 @@ source $testdir/tester.tcl
 #
 do_not_use_codec

+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
 # We must have the page_size pragma for these tests to work.
 #
 ifcapable !pager_pragmas {
@@ -24,6 +24,10 @@ source $testdir/tester.tcl
 #
 do_not_use_codec

+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
 # We must have the page_size pragma for these tests to work.
 #
 ifcapable !pager_pragmas {
@@ -24,6 +24,10 @@ source $testdir/tester.tcl
 #
 do_not_use_codec

+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
 # We must have the page_size pragma for these tests to work.
 #
 ifcapable !pager_pragmas||!autovacuum {
@@ -24,6 +24,10 @@ source $testdir/tester.tcl
 #
 do_not_use_codec

+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
 # We must have the page_size pragma for these tests to work.
 #
 ifcapable !pager_pragmas {
@@ -24,6 +24,10 @@ source $testdir/tester.tcl
 #
 do_not_use_codec

+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+

 # Create a database to work with.
 #
@@ -30,6 +30,10 @@ source $testdir/tester.tcl
 #
 do_not_use_codec

+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+

 do_test corruptB-1.1 {
  execsql {
@@ -27,6 +27,10 @@ source $testdir/tester.tcl
 #
 do_not_use_codec

+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
 # Construct a compact, dense database for testing.
 #
 do_test corruptC-1.1 {
@@ -202,6 +206,10 @@ do_test corruptC-2.8 {
 } {1 {database disk image is malformed}}

 # corruption (seed 170434)
+#
+# UPDATE: Prior to 3.8.2, this used to return SQLITE_CORRUPT. It no longer
+# does. That is Ok, the point of these tests is to verify that no buffer
+# overruns or overreads can be caused by corrupt databases.
 do_test corruptC-2.9 {
  db close
  forcecopy test.bu test.db
@@ -211,7 +219,7 @@ do_test corruptC-2.9 {

  sqlite3 db test.db
  catchsql {BEGIN; DELETE FROM t1 WHERE x>13; ROLLBACK;}
-} {1 {database disk image is malformed}}
+} {0 {}}

 # corruption (seed 186504)
 do_test corruptC-2.10 {
@@ -19,6 +19,10 @@ source $testdir/tester.tcl
 #
 do_not_use_codec

+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
 #--------------------------------------------------------------------------
 # OVERVIEW
 #
@@ -24,6 +24,10 @@ source $testdir/tester.tcl
 #
 do_not_use_codec

+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
 # Do not run the tests in this file if ENABLE_OVERSIZE_CELL_CHECK is on.
 #
 ifcapable oversize_cell_check {
@@ -19,6 +19,10 @@ set testprefix corruptF
 #
 do_not_use_codec

+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
 proc str {i} { format %08d $i }

 # Create a 6 page database containing a single table - t1. Table t1 
@@ -19,6 +19,10 @@ set testprefix corruptG
 #
 do_not_use_codec

+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
 # Create a simple database with a single entry.  Then corrupt the
 # header-size varint on the index payload so that it maps into a
 # negative number.  Try to use the database.
@@ -1103,7 +1103,7 @@ do_catchsql_test e_createtable-3.11.5 {
 # EVIDENCE-OF: R-52382-54248 Each table in SQLite may have at most one
 # PRIMARY KEY.
 # 
-# EVIDENCE-OF: R-62315-57691 An error is rasied if more than one PRIMARY
+# EVIDENCE-OF: R-31826-01813 An error is raised if more than one PRIMARY
 # KEY clause appears in a CREATE TABLE statement.
 #
 #     To test the two above, show that zero primary keys is Ok, one primary
@@ -1654,6 +1654,10 @@ do_execsql_test  4.19.4 { SELECT * FROM t5 } {}
 # of the special case-independent names "rowid", "oid", or "_rowid_" in
 # place of a column name.
 #
+# EVIDENCE-OF: R-06726-07466 A column name can be any of the names
+# defined in the CREATE TABLE statement or one of the following special
+# identifiers: "ROWID", "OID", or "_ROWID_".
+#
 drop_all_tables
 do_execsql_test 5.1.0 {
  CREATE TABLE t1(x, y);
@@ -1678,6 +1682,10 @@ do_createtable_tests 5.1 {
 # explicitly declared column and cannot be used to retrieve the integer
 # rowid value.
 #
+# EVIDENCE-OF: R-44615-33286 The special identifiers only refer to the
+# row key if the CREATE TABLE statement does not define a real column
+# with the same name.
+#
 do_execsql_test 5.2.0 {
  CREATE TABLE t2(oid, b);
  CREATE TABLE t3(a, _rowid_);
@@ -1081,9 +1081,9 @@ ifcapable !icu {
 # EVIDENCE-OF: R-33693-50180 The REGEXP operator is a special syntax for
 # the regexp() user function.
 #
-# EVIDENCE-OF: R-57289-13578 If a application-defined SQL function named
-# "regexp" is added at run-time, that function will be called in order
-# to implement the REGEXP operator.
+# EVIDENCE-OF: R-65524-61849 If an application-defined SQL function
+# named "regexp" is added at run-time, then the "X REGEXP Y" operator
+# will be implemented as a call to "regexp(Y,X)".
 #
 proc regexpfunc {args} {
  eval lappend ::regexpargs $args
@@ -1407,10 +1407,12 @@ do_test e_expr-26.1.6 { set ::evalcount } {5}
 #-------------------------------------------------------------------------
 # Test statements related to CAST expressions.
 #
-# EVIDENCE-OF: R-65079-31758 Application of a CAST expression is
-# different to application of a column affinity, as with a CAST
-# expression the storage class conversion is forced even if it is lossy
-# and irrreversible.
+# EVIDENCE-OF: R-20854-17109 A CAST conversion is similar to the
+# conversion that takes place when a column affinity is applied to a
+# value except that with the CAST operator the conversion always takes
+# place even if the conversion lossy and irreversible, whereas column
+# affinity only changes the data type of a value if the change is
+# lossless and reversible.
 #
 do_execsql_test e_expr-27.1.1 {
  CREATE TABLE t3(a TEXT, b REAL, c INTEGER);
@@ -1594,26 +1596,29 @@ do_expr_test e_expr-30.4.1 { CAST('' AS INTEGER) } integer 0
 do_expr_test e_expr-30.4.2 { CAST('not a number' AS INTEGER) } integer 0
 do_expr_test e_expr-30.4.3 { CAST('XXI' AS INTEGER) } integer 0

-# EVIDENCE-OF: R-00741-38776 A cast of a REAL value into an INTEGER will
-# truncate the fractional part of the REAL.
+# EVIDENCE-OF: R-02752-50091 A cast of a REAL value into an INTEGER
+# results in the integer between the REAL value and zero that is closest
+# to the REAL value.
 #
 do_expr_test e_expr-31.1.1 { CAST(3.14159 AS INTEGER) } integer 3
 do_expr_test e_expr-31.1.2 { CAST(1.99999 AS INTEGER) } integer 1
 do_expr_test e_expr-31.1.3 { CAST(-1.99999 AS INTEGER) } integer -1
 do_expr_test e_expr-31.1.4 { CAST(-0.99999 AS INTEGER) } integer 0

-# EVIDENCE-OF: R-49503-28105 If a REAL is too large to be represented as
-# an INTEGER then the result of the cast is the largest negative
-# integer: -9223372036854775808.
+# EVIDENCE-OF: R-51517-40824 If a REAL is greater than the greatest
+# possible signed integer (+9223372036854775807) then the result is the
+# greatest possible signed integer and if the REAL is less than the
+# least possible signed integer (-9223372036854775808) then the result
+# is the least possible signed integer.
 #
-do_expr_test e_expr-31.2.1 { CAST(2e+50 AS INT) } integer -9223372036854775808
+do_expr_test e_expr-31.2.1 { CAST(2e+50 AS INT) } integer 9223372036854775807
 do_expr_test e_expr-31.2.2 { CAST(-2e+50 AS INT) } integer -9223372036854775808
 do_expr_test e_expr-31.2.3 { 
  CAST(-9223372036854775809.0 AS INT)
 } integer -9223372036854775808
 do_expr_test e_expr-31.2.4 { 
  CAST(9223372036854775809.0 AS INT)
-} integer -9223372036854775808
+} integer 9223372036854775807


 # EVIDENCE-OF: R-09295-61337 Casting a TEXT or BLOB value into NUMERIC
@@ -1847,5 +1852,43 @@ foreach {tn expr} {
  do_expr_test e_expr-36.4.$tn $expr null {}
 }

+# EVIDENCE-OF: R-62477-06476 For example, the values NULL, 0.0, 0,
+# 'english' and '0' are all considered to be false.
+#
+do_execsql_test e_expr-37.1 {
+   SELECT CASE WHEN NULL THEN 'true' ELSE 'false' END;
+} {false}
+do_execsql_test e_expr-37.2 {
+   SELECT CASE WHEN 0.0 THEN 'true' ELSE 'false' END;
+} {false}
+do_execsql_test e_expr-37.3 {
+   SELECT CASE WHEN 0 THEN 'true' ELSE 'false' END;
+} {false}
+do_execsql_test e_expr-37.4 {
+   SELECT CASE WHEN 'engligh' THEN 'true' ELSE 'false' END;
+} {false}
+do_execsql_test e_expr-37.5 {
+   SELECT CASE WHEN '0' THEN 'true' ELSE 'false' END;
+} {false}
+
+# EVIDENCE-OF: R-55532-10108 Values 1, 1.0, 0.1, -0.1 and '1english' are
+# considered to be true.
+#
+do_execsql_test e_expr-37.6 {
+   SELECT CASE WHEN 1 THEN 'true' ELSE 'false' END;
+} {true}
+do_execsql_test e_expr-37.7 {
+   SELECT CASE WHEN 1.0 THEN 'true' ELSE 'false' END;
+} {true}
+do_execsql_test e_expr-37.8 {
+   SELECT CASE WHEN 0.1 THEN 'true' ELSE 'false' END;
+} {true}
+do_execsql_test e_expr-37.9 {
+   SELECT CASE WHEN -0.1 THEN 'true' ELSE 'false' END;
+} {true}
+do_execsql_test e_expr-37.10 {
+   SELECT CASE WHEN '1english' THEN 'true' ELSE 'false' END;
+} {true}
+

 finish_test
@@ -69,7 +69,10 @@ proc catch_fk_error {zSql} {
  if {[string match {*foreign key*} $msg]} {
    return ""
  }
-  if {$msg eq "out of memory" || $msg eq "constraint failed"} {
+  if {$msg eq "out of memory" 
+   || $msg eq "FOREIGN KEY constraint failed"
+   || $msg eq "constraint failed"
+  } {
    error 1
  }
  error $msg
@@ -10,7 +10,7 @@
 # $Id: fts3.test,v 1.2 2008/07/23 18:17:32 drh Exp $

 set testdir [file dirname $argv0]
-source $testdir/permutations.test
+source $testdir/tester.tcl
 set testprefix fts3varint

 ifcapable !fts3 {
@@ -1319,6 +1319,24 @@ do_test func-29.6 {
  set x
 } {1}

+# The OP_Column opcode has an optimization that avoids loading content
+# for fields with content-length=0 when the content offset is on an overflow
+# page.  Make sure the optimization works.
+#
+do_execsql_test func-29.10 {
+  CREATE TABLE t29b(a,b,c,d,e,f,g,h,i);
+  INSERT INTO t29b 
+   VALUES(1, hex(randomblob(2000)), null, 0, 1, '', zeroblob(0),'x',x'01');
+  SELECT typeof(c), typeof(d), typeof(e), typeof(f),
+         typeof(g), typeof(h), typeof(i) FROM t29b;
+} {null integer integer text blob text blob}
+do_execsql_test func-29.11 {
+  SELECT length(f), length(g), length(h), length(i) FROM t29b;
+} {0 0 1 1}
+do_execsql_test func-29.12 {
+  SELECT quote(f), quote(g), quote(h), quote(i) FROM t29b;
+} {'' X'' 'x' X'01'}
+
 # EVIDENCE-OF: R-29701-50711 The unicode(X) function returns the numeric
 # unicode code point corresponding to the first character of the string
 # X.
@@ -0,0 +1,63 @@
+# 2013-11-21
+#
+# 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.
+#
+#*************************************************************************
+#
+# Testing of function factoring and the SQLITE_DETERMINISTIC flag.
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Verify that constant string expressions that get factored into initializing
+# code are not reused between function parameters and other values in the
+# VDBE program, as the function might have changed the encoding.
+#
+do_execsql_test func5-1.1 {
+  PRAGMA encoding=UTF16le;
+  CREATE TABLE t1(x,a,b,c);
+  INSERT INTO t1 VALUES(1,'ab','cd',1);
+  INSERT INTO t1 VALUES(2,'gh','ef',5);
+  INSERT INTO t1 VALUES(3,'pqr','fuzzy',99);
+  INSERT INTO t1 VALUES(4,'abcdefg','xy',22);
+  INSERT INTO t1 VALUES(5,'shoe','mayer',2953);
+  SELECT x FROM t1 WHERE c=instr('abcdefg',b) OR a='abcdefg' ORDER BY +x;
+} {2 4}
+do_execsql_test func5-1.2 {
+  SELECT x FROM t1 WHERE a='abcdefg' OR c=instr('abcdefg',b) ORDER BY +x;
+} {2 4}
+
+# Verify that SQLITE_DETERMINISTIC functions get factored out of the
+# evaluation loop whereas non-deterministic functions do not.  counter1()
+# is marked as non-deterministic and so is not factored out of the loop,
+# and it really is non-deterministic, returning a different result each
+# time.  But counter2() is marked as deterministic, so it does get factored
+# out of the loop.  counter2() has the same implementation as counter1(),
+# returning a different result on each invocation, but because it is 
+# only invoked once outside of the loop, it appears to return the same
+# result multiple times.
+#
+do_execsql_test func5-2.1 {
+  CREATE TABLE t2(x,y);
+  INSERT INTO t2 VALUES(1,2),(3,4),(5,6),(7,8);
+  SELECT x, y FROM t2 WHERE x+5=5+x ORDER BY +x;
+} {1 2 3 4 5 6 7 8}
+sqlite3_create_function db
+do_execsql_test func5-2.2 {
+  SELECT x, y FROM t2
+   WHERE x+counter1('hello')=counter1('hello')+x
+   ORDER BY +x;
+} {}
+do_execsql_test func5-2.3 {
+  SELECT x, y FROM t2
+   WHERE x+counter2('hello')=counter2('hello')+x
+   ORDER BY +x;
+} {1 2 3 4 5 6 7 8}
+
+
+finish_test
@@ -18,6 +18,9 @@
 set testdir [file dirname $argv0]
 source $testdir/tester.tcl

+# These tests deal with corrupt database files
+#
+database_may_be_corrupt

 expr srand(123)

@@ -127,21 +127,52 @@ db2 close
 #         depopulation of indices, to make sure the update-hook is not 
 #         invoked incorrectly.
 #
+# EVIDENCE-OF: R-21999-45122 The sqlite3_update_hook() interface
+# registers a callback function with the database connection identified
+# by the first argument to be invoked whenever a row is updated,
+# inserted or deleted in a rowid table.

 # Simple tests
-do_test hook-4.1.1 {
+do_test hook-4.1.1a {
  catchsql {
    DROP TABLE t1;
  }
+  unset -nocomplain ::update_hook
+  set ::update_hook {}
+  db update_hook [list lappend ::update_hook]
+  #
+  # EVIDENCE-OF: R-52223-27275 The update hook is not invoked when
+  # internal system tables are modified (i.e. sqlite_master and
+  # sqlite_sequence).
+  #
  execsql {
    CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+    CREATE TABLE t1w(a INT PRIMARY KEY, b) WITHOUT ROWID;
+  }
+  set ::update_hook
+} {}
+do_test hook-4.1.1b {
+  execsql {
    INSERT INTO t1 VALUES(1, 'one');
    INSERT INTO t1 VALUES(2, 'two');
    INSERT INTO t1 VALUES(3, 'three');
+    INSERT INTO t1w SELECT * FROM t1;
  }
-  db update_hook [list lappend ::update_hook]
 } {}
+
+# EVIDENCE-OF: R-15506-57666 The second callback argument is one of
+# SQLITE_INSERT, SQLITE_DELETE, or SQLITE_UPDATE, depending on the
+# operation that caused the callback to be invoked.
+#
+# EVIDENCE-OF: R-29213-61195 The third and fourth arguments to the
+# callback contain pointers to the database and table name containing
+# the affected row.
+#
+# EVIDENCE-OF: R-30809-57812 The final callback parameter is the rowid
+# of the row.
+#
 do_test hook-4.1.2 {
+  set ::update_hook {}
  execsql {
    INSERT INTO t1 VALUES(4, 'four');
    DELETE FROM t1 WHERE b = 'two';
@@ -159,6 +190,23 @@ do_test hook-4.1.2 {
    DELETE main t1 4 \
 ]

+# EVIDENCE-OF: R-61808-14344 The sqlite3_update_hook() interface does
+# not fire callbacks for changes to a WITHOUT ROWID table.
+#
+# EVIDENCE-OF: R-33257-44249 The update hook is not invoked when WITHOUT
+# ROWID tables are modified.
+#
+do_test hook-4.1.2w {
+  set ::update_hook {}
+  execsql {
+    INSERT INTO t1w VALUES(4, 'four');
+    DELETE FROM t1w WHERE b = 'two';
+    UPDATE t1w SET b = '' WHERE a = 1 OR a = 3;
+    DELETE FROM t1w WHERE 1; -- Avoid the truncate optimization (for now)
+  }
+  set ::update_hook
+} {}
+
 ifcapable trigger {
  # Update hook is not invoked for changes to sqlite_master
  #
@@ -258,7 +258,7 @@ do_ioerr_test ioerr-10 -ckrefcount true -tclprep {
    INSERT INTO t1 SELECT (a+500)%900, 'good string' FROM t1;
  }} msg

-  if {$msg != "column a is not unique"} {
+  if {$msg != "UNIQUE constraint failed: t1.a"} {
    error $msg
  }
 }
@@ -36,6 +36,17 @@ do_test lastinsert-1.1 {
    }
 } {0 3}

+# EVIDENCE-OF: R-47220-63683 The sqlite3_last_insert_rowid() function
+# does not work for WITHOUT ROWID tables.
+#
+do_test lastinsert-1.1w {
+    catchsql {
+        create table t1w (k integer primary key) WITHOUT ROWID;
+        insert into t1w values (123456);
+        select last_insert_rowid(); -- returns 3 from above.
+    }
+} {0 3}
+
 # LIRID unchanged after an update on a table
 do_test lastinsert-1.2 {
    catchsql {
@@ -355,7 +355,7 @@ do_ioerr_test misc7-16 -sqlprep {
    COMMIT;
  }} msg]

-  if {!$rc || ($rc && [string first "columns" $msg]==0)} {
+  if {!$rc || ($rc && [string first "UNIQUE" $msg]==0)} {
    set msg
  } else {
    error $msg
@@ -0,0 +1,94 @@
+# 2013-12-06
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests for the SQLITE_IOERR_NODB error condition: the database file file
+# is unlinked or renamed out from under SQLite.
+#
+
+if {$tcl_platform(platform)!="unix"} return
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Create a database file for testing
+#
+do_execsql_test pager4-1.1 {
+  CREATE TABLE t1(a,b,c);
+  INSERT INTO t1 VALUES(673,'stone','philips');
+  SELECT * FROM t1;
+} {673 stone philips}
+
+# After renaming the database file while it is open, one can still
+# read from the database, but writing returns a READONLY error.
+#
+file delete -force test-xyz.db
+file rename test.db test-xyz.db
+do_catchsql_test pager4-1.2 {
+  SELECT * FROM t1;
+} {0 {673 stone philips}}
+do_catchsql_test pager4-1.3 {
+  UPDATE t1 SET a=537;
+} {1 {attempt to write a readonly database}}
+
+# Creating a different database file with the same name of the original
+# is detected and still leaves the database read-only.
+#
+sqlite3 db2 test.db
+db2 eval {CREATE TABLE t2(x,y,z)}
+do_catchsql_test pager4-1.4 {
+  UPDATE t1 SET a=948;
+} {1 {attempt to write a readonly database}}
+
+# Changing the name back clears the READONLY error
+#
+db2 close
+file delete -force test.db
+file rename test-xyz.db test.db
+do_catchsql_test pager4-1.5 {
+  SELECT * FROM t1;
+} {0 {673 stone philips}}
+do_catchsql_test pager4-1.6 {
+  UPDATE t1 SET a=537;
+  SELECT * FROM t1;
+} {0 {537 stone philips}}
+
+# We can write to a renamed database if journal_mode=OFF or
+# journal_mode=MEMORY.
+#
+file rename test.db test-xyz.db
+do_catchsql_test pager4-1.7 {
+  PRAGMA journal_mode=OFF;
+  UPDATE t1 SET a=107;
+  SELECT * FROM t1;
+} {0 {off 107 stone philips}}
+do_catchsql_test pager4-1.8 {
+  PRAGMA journal_mode=MEMORY;
+  UPDATE t1 SET b='magpie';
+  SELECT * FROM t1;
+} {0 {memory 107 magpie philips}}
+
+# Any other journal mode gives a READONLY error
+#
+do_catchsql_test pager4-1.9 {
+  PRAGMA journal_mode=DELETE;
+  UPDATE t1 SET c='jaguar';
+} {1 {attempt to write a readonly database}}
+do_catchsql_test pager4-1.10 {
+  PRAGMA journal_mode=TRUNCATE;
+  UPDATE t1 SET c='jaguar';
+} {1 {attempt to write a readonly database}}
+do_catchsql_test pager4-1.11 {
+  PRAGMA journal_mode=PERSIST;
+  UPDATE t1 SET c='jaguar';
+} {1 {attempt to write a readonly database}}
+
+
+finish_test
@@ -0,0 +1,59 @@
+# 2013-12-17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the printf() SQL function.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_execsql_test printf2-1.1 {
+  SELECT printf();
+} {{}}
+do_execsql_test printf2-1.2 {
+  SELECT printf('hello');
+} {hello}
+do_execsql_test printf2-1.3 {
+  SELECT printf('%d,%d,%d',55,-11,3421);
+} {55,-11,3421}
+do_execsql_test printf2-1.4 {
+  SELECT printf('%d,%d,%d',55,'-11',3421);
+} {55,-11,3421}
+do_execsql_test printf2-1.5 {
+  SELECT printf('%d,%d,%d,%d',55,'-11',3421);
+} {55,-11,3421,0}
+do_execsql_test printf2-1.6 {
+  SELECT printf('%.2f',3.141592653);
+} {3.14}
+do_execsql_test printf2-1.7 {
+  SELECT printf('%.*f',2,3.141592653);
+} {3.14}
+do_execsql_test printf2-1.8 {
+  SELECT printf('%*.*f',5,2,3.141592653);
+} {{ 3.14}}
+do_execsql_test printf2-1.9 {
+  SELECT printf('%d',314159.2653);
+} {314159}
+do_execsql_test printf2-1.10 {
+  SELECT printf('%lld',314159.2653);
+} {314159}
+do_execsql_test printf2-1.11 {
+  SELECT printf('%lld%n',314159.2653,'hi');
+} {314159}
+do_execsql_test printf2-1.12 {
+  SELECT printf('%.*z',5,'abcdefghijklmnop');
+} {abcde}
+do_execsql_test printf2-1.13 {
+  SELECT printf('%c','abcdefghijklmnop');
+} {a}
+
+
+finish_test
@@ -12,7 +12,9 @@
 # focus of this file is testing the magic ROWID column that is
 # found on all tables.
 #
-# $Id: rowid.test,v 1.21 2009/06/26 15:14:55 drh Exp $
+# EVIDENCE-OF: R-36924-43758 By default, every row in SQLite has a
+# special column, usually called the "rowid", that uniquely identifies
+# that row within the table.

 set testdir [file dirname $argv0]
 source $testdir/tester.tcl
@@ -0,0 +1,78 @@
+#!/bin/sh
+#
+# This script runs the wordcount program in different ways, comparing
+# the output from each.
+#
+
+# Select the source text to be analyzed.
+#
+if test "x$1" = "x";
+then echo "Usage: $0 FILENAME [ARGS...]"; exit 1;
+fi
+
+# Do test runs
+#
+rm -f wcdb1.db
+./wordcount --timer --summary wcdb1.db $* --insert >wc-out.txt
+mv wc-out.txt wc-baseline.txt
+rm -f wcdb2.db
+./wordcount --timer --summary wcdb2.db $* --insert --without-rowid >wc-out.txt
+  if cmp -s wc-out.txt wc-baseline.txt;
+  then echo hi >/dev/null;
+  else echo ERROR:;
+       diff -u wc-baseline.txt wc-out.txt;
+  fi
+
+rm -f wcdb1.db
+./wordcount --timer --summary wcdb1.db $* --replace >wc-out.txt
+  if cmp -s wc-out.txt wc-baseline.txt;
+  then echo hi >/dev/null;
+  else echo ERROR:;
+       diff -u wc-baseline.txt wc-out.txt;
+  fi
+rm -f wcdb2.db
+./wordcount --timer --summary wcdb2.db $* --replace --without-rowid >wc-out.txt
+  if cmp -s wc-out.txt wc-baseline.txt;
+  then echo hi >/dev/null;
+  else echo ERROR:;
+       diff -u wc-baseline.txt wc-out.txt;
+  fi
+
+rm -f wcdb1.db
+./wordcount --timer --summary wcdb1.db $* --select >wc-out.txt
+  if cmp -s wc-out.txt wc-baseline.txt;
+  then echo hi >/dev/null;
+  else echo ERROR:;
+       diff -u wc-baseline.txt wc-out.txt;
+  fi
+
+rm -f wcdb2.db
+./wordcount --timer --summary wcdb2.db $* --select --without-rowid >wc-out.txt
+  if cmp -s wc-out.txt wc-baseline.txt;
+  then echo hi >/dev/null;
+  else echo ERROR:;
+       diff -u wc-baseline.txt wc-out.txt;
+  fi
+
+./wordcount --timer --summary wcdb1.db $* --query >wc-out.txt
+mv wc-out.txt wc-baseline.txt
+./wordcount --timer --summary wcdb2.db $* --query --without-rowid >wc-out.txt
+  if cmp -s wc-out.txt wc-baseline.txt;
+  then echo hi >/dev/null;
+  else echo ERROR:;
+       diff -u wc-baseline.txt wc-out.txt;
+  fi
+
+./wordcount --timer --summary wcdb1.db $* --delete >wc-out.txt
+mv wc-out.txt wc-baseline.txt
+./wordcount --timer --summary wcdb2.db $* --delete --without-rowid >wc-out.txt
+  if cmp -s wc-out.txt wc-baseline.txt;
+  then echo hi >/dev/null;
+  else echo ERROR:;
+       diff -u wc-baseline.txt wc-out.txt;
+  fi
+
+
+# Clean up temporary files created.
+#
+rm -rf wcdb1.db wcdb2.db wc-out.txt wc-baseline.txt
@@ -268,4 +268,23 @@ do_test shell5-1.9 {
 } {1 {} 11 | 2 x 22 | 3 {"} 33 | 4 hello 44 | 5 55 {} | 6 66 x | 7 77 {"} | 8 88 hello | {} 9 99 | x 10 110 | {"} 11 121 | hello 12 132 |}
 db close

+# Import columns containing quoted strings
+do_test shell5-1.10 {
+  set out [open shell5.csv w]
+  fconfigure $out -translation lf
+  puts $out {column1,column2,column3,column4}
+  puts $out "field1,field2,\"x3 \"\"\r\ndata\"\" 3\",field4"
+  puts $out "x1,x2,\"x3 \"\"\ndata\"\" 3\",x4"
+  close $out
+  forcedelete test.db
+  catchcmd test.db {.mode csv
+    CREATE TABLE t1(a,b,c,d);
+.import shell5.csv t1
+  }
+  sqlite3 db test.db
+  db eval {SELECT hex(c) FROM t1 ORDER BY rowid}
+} {636F6C756D6E33 783320220D0A64617461222033 783320220A64617461222033}
+
+db close
+
 finish_test
@@ -0,0 +1,190 @@
+# 2013-11-27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests of the "skip-scan" query strategy.
+#
+# The test cases in this file are derived from the description of
+# the skip-scan query strategy in the "optoverview.html" document.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_execsql_test skipscan2-1.1 {
+  CREATE TABLE people(
+    name TEXT PRIMARY KEY,
+    role TEXT NOT NULL,
+    height INT NOT NULL, -- in cm
+    CHECK( role IN ('student','teacher') )
+  );
+  CREATE INDEX people_idx1 ON people(role, height);
+} {}
+do_execsql_test skipscan2-1.2 {
+  INSERT INTO people VALUES('Alice','student',156);
+  INSERT INTO people VALUES('Bob','student',161);
+  INSERT INTO people VALUES('Cindy','student',155);
+  INSERT INTO people VALUES('David','student',181);
+  INSERT INTO people VALUES('Emily','teacher',158);
+  INSERT INTO people VALUES('Fred','student',163);
+  INSERT INTO people VALUES('Ginny','student',169);
+  INSERT INTO people VALUES('Harold','student',172);
+  INSERT INTO people VALUES('Imma','student',179);
+  INSERT INTO people VALUES('Jack','student',181);
+  INSERT INTO people VALUES('Karen','student',163);
+  INSERT INTO people VALUES('Logan','student',177);
+  INSERT INTO people VALUES('Megan','teacher',159);
+  INSERT INTO people VALUES('Nathan','student',163);
+  INSERT INTO people VALUES('Olivia','student',161);
+  INSERT INTO people VALUES('Patrick','teacher',180);
+  INSERT INTO people VALUES('Quiana','student',182);
+  INSERT INTO people VALUES('Robert','student',159);
+  INSERT INTO people VALUES('Sally','student',166);
+  INSERT INTO people VALUES('Tom','student',171);
+  INSERT INTO people VALUES('Ursula','student',170);
+  INSERT INTO people VALUES('Vance','student',179);
+  INSERT INTO people VALUES('Willma','student',175);
+  INSERT INTO people VALUES('Xavier','teacher',185);
+  INSERT INTO people VALUES('Yvonne','student',149);
+  INSERT INTO people VALUES('Zach','student',170);
+}
+
+# Without ANALYZE, a skip-scan is not used
+#
+do_execsql_test skipscan2-1.3 {
+  SELECT name FROM people WHERE height>=180 ORDER BY +name;
+} {David Jack Patrick Quiana Xavier}
+do_execsql_test skipscan2-1.3eqp {
+  EXPLAIN QUERY PLAN
+  SELECT name FROM people WHERE height>=180 ORDER BY +name;
+} {~/*INDEX people_idx1 */}
+
+# Now do an ANALYZE.  A skip-scan can be used after ANALYZE.
+#
+do_execsql_test skipscan2-1.4 {
+  ANALYZE;
+  -- We do not have enough people above to actually force the use
+  -- of a skip-scan.  So make a manual adjustment to the stat1 table
+  -- to make it seem like there are many more.
+  UPDATE sqlite_stat1 SET stat='10000 5000 20' WHERE idx='people_idx1';
+  ANALYZE sqlite_master;
+}
+db cache flush
+do_execsql_test skipscan2-1.5 {
+  SELECT name FROM people WHERE height>=180 ORDER BY +name;
+} {David Jack Patrick Quiana Xavier}
+do_execsql_test skipscan2-1.5eqp {
+  EXPLAIN QUERY PLAN
+  SELECT name FROM people WHERE height>=180 ORDER BY +name;
+} {/*INDEX people_idx1 */}
+
+# Same answer with other formulations of the same query
+#
+do_execsql_test skipscan2-1.6 {
+  SELECT name FROM people
+   WHERE role IN (SELECT DISTINCT role FROM people)
+     AND height>=180 ORDER BY +name;
+} {David Jack Patrick Quiana Xavier}
+do_execsql_test skipscan2-1.7 {
+  SELECT name FROM people WHERE role='teacher' AND height>=180
+  UNION ALL
+  SELECT name FROM people WHERE role='student' AND height>=180
+  ORDER BY 1;
+} {David Jack Patrick Quiana Xavier}
+
+# Add 8 more people, bringing the total to 34.  Then the number of
+# duplicates in the left-column of the index will be 17 and 
+# skip-scan should not be used after an (unfudged) ANALYZE.
+#
+do_execsql_test skipscan2-1.8 {
+  INSERT INTO people VALUES('Angie','student',166);
+  INSERT INTO people VALUES('Brad','student',176);
+  INSERT INTO people VALUES('Claire','student',168);
+  INSERT INTO people VALUES('Donald','student',162);
+  INSERT INTO people VALUES('Elaine','student',177);
+  INSERT INTO people VALUES('Frazier','student',159);
+  INSERT INTO people VALUES('Grace','student',179);
+  INSERT INTO people VALUES('Horace','student',166);
+  ANALYZE;
+  SELECT stat FROM sqlite_stat1 WHERE idx='people_idx1';
+} {{34 17 2}}
+db cache flush
+do_execsql_test skipscan2-1.9 {
+  SELECT name FROM people WHERE height>=180 ORDER BY +name;
+} {David Jack Patrick Quiana Xavier}
+do_execsql_test skipscan2-1.9eqp {
+  EXPLAIN QUERY PLAN
+  SELECT name FROM people WHERE height>=180 ORDER BY +name;
+} {~/*INDEX people_idx1 */}
+
+# Add 2 more people, bringing the total to 36.  Then the number of
+# duplicates in the left-column of the index will be 18 and 
+# skip-scan will be used after an (unfudged) ANALYZE.
+#
+do_execsql_test skipscan2-1.10 {
+  INSERT INTO people VALUES('Ingrad','student',155);
+  INSERT INTO people VALUES('Jacob','student',179);
+  ANALYZE;
+  SELECT stat FROM sqlite_stat1 WHERE idx='people_idx1';
+} {{36 18 2}}
+db cache flush
+do_execsql_test skipscan2-1.11 {
+  SELECT name FROM people WHERE height>=180 ORDER BY +name;
+} {David Jack Patrick Quiana Xavier}
+do_execsql_test skipscan2-1.11eqp {
+  EXPLAIN QUERY PLAN
+  SELECT name FROM people WHERE height>=180 ORDER BY +name;
+} {/*INDEX people_idx1 */}
+
+
+# Repeat using a WITHOUT ROWID table.
+#
+do_execsql_test skipscan2-2.1 {
+  CREATE TABLE peoplew(
+    name TEXT PRIMARY KEY,
+    role TEXT NOT NULL,
+    height INT NOT NULL, -- in cm
+    CHECK( role IN ('student','teacher') )
+  ) WITHOUT ROWID;
+  CREATE INDEX peoplew_idx1 ON peoplew(role, height);
+  INSERT INTO peoplew(name,role,height)
+     SELECT name, role, height FROM  people;
+  ALTER TABLE people RENAME TO old_people;
+  SELECT name FROM peoplew WHERE height>=180 ORDER BY +name;
+} {David Jack Patrick Quiana Xavier}
+do_execsql_test skipscan2-2.2 {
+  SELECT name FROM peoplew
+   WHERE role IN (SELECT DISTINCT role FROM peoplew)
+     AND height>=180 ORDER BY +name;
+} {David Jack Patrick Quiana Xavier}
+do_execsql_test skipscan2-2.2 {
+  SELECT name FROM peoplew WHERE role='teacher' AND height>=180
+  UNION ALL
+  SELECT name FROM peoplew WHERE role='student' AND height>=180
+  ORDER BY 1;
+} {David Jack Patrick Quiana Xavier}
+
+# Now do an ANALYZE.  A skip-scan can be used after ANALYZE.
+#
+do_execsql_test skipscan2-2.4 {
+  ANALYZE;
+}
+db cache flush
+do_execsql_test skipscan2-2.5 {
+  SELECT name FROM peoplew WHERE height>=180 ORDER BY +name;
+} {David Jack Patrick Quiana Xavier}
+do_execsql_test skipscan2-2.5eqp {
+  EXPLAIN QUERY PLAN
+  SELECT name FROM peoplew WHERE height>=180 ORDER BY +name;
+} {/*INDEX peoplew_idx1 */}
+
+
+
+finish_test
@@ -0,0 +1,966 @@
+/*
+** A program for performance testing.
+**
+** The available command-line options are described below:
+*/
+static const char zHelp[] =
+  "Usage: %s [--options] DATABASE\n"
+  "Options:\n"
+  "  --autovacuum        Enable AUTOVACUUM mode\n"
+  "  --cachesize N       Set the cache size to N\n" 
+  "  --exclusive         Enable locking_mode=EXCLUSIVE\n"
+  "  --heap SZ MIN       Memory allocator uses SZ bytes & min allocation MIN\n"
+  "  --incrvacuum        Enable incremenatal vacuum mode\n"
+  "  --journalmode M     Set the journal_mode to MODE\n"
+  "  --key KEY           Set the encryption key to KEY\n"
+  "  --lookaside N SZ    Configure lookaside for N slots of SZ bytes each\n"
+  "  --nosync            Set PRAGMA synchronous=OFF\n"
+  "  --notnull           Add NOT NULL constraints to table columns\n"
+  "  --pagesize N        Set the page size to N\n"
+  "  --pcache N SZ       Configure N pages of pagecache each of size SZ bytes\n"
+  "  --primarykey        Use PRIMARY KEY instead of UNIQUE where appropriate\n"
+  "  --reprepare         Reprepare each statement upon every invocation\n"
+  "  --scratch N SZ      Configure scratch memory for N slots of SZ bytes each\n"
+  "  --sqlonly           No-op.  Only show the SQL that would have been run.\n"
+  "  --size N            Relative test size.  Default=100\n"
+  "  --stats             Show statistics at the end\n"
+  "  --testset T         Run test-set T\n"
+  "  --trace             Turn on SQL tracing\n"
+  "  --utf16be           Set text encoding to UTF-16BE\n"
+  "  --utf16le           Set text encoding to UTF-16LE\n"
+  "  --without-rowid     Use WITHOUT ROWID where appropriate\n"
+;
+
+
+#include "sqlite3.h"
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <ctype.h>
+
+/* All global state is held in this structure */
+static struct Global {
+  sqlite3 *db;               /* The open database connection */
+  sqlite3_stmt *pStmt;       /* Current SQL statement */
+  sqlite3_int64 iStart;      /* Start-time for the current test */
+  sqlite3_int64 iTotal;      /* Total time */
+  int bWithoutRowid;         /* True for --without-rowid */
+  int bReprepare;            /* True to reprepare the SQL on each rerun */
+  int bSqlOnly;              /* True to print the SQL once only */
+  int szTest;                /* Scale factor for test iterations */
+  const char *zWR;           /* Might be WITHOUT ROWID */
+  const char *zNN;           /* Might be NOT NULL */
+  const char *zPK;           /* Might be UNIQUE or PRIMARY KEY */
+  unsigned int x, y;         /* Pseudo-random number generator state */
+  int nResult;               /* Size of the current result */
+  char zResult[3000];        /* Text of the current result */
+} g;
+
+
+/* Print an error message and exit */
+static void fatal_error(const char *zMsg, ...){
+  va_list ap;
+  va_start(ap, zMsg);
+  vfprintf(stderr, zMsg, ap);
+  va_end(ap);
+  exit(1);
+}
+
+/*
+** Return the value of a hexadecimal digit.  Return -1 if the input
+** is not a hex digit.
+*/
+static int hexDigitValue(char c){
+  if( c>='0' && c<='9' ) return c - '0';
+  if( c>='a' && c<='f' ) return c - 'a' + 10;
+  if( c>='A' && c<='F' ) return c - 'A' + 10;
+  return -1;
+}
+
+/* Provide an alternative to sqlite3_stricmp() in older versions of
+** SQLite */
+#if SQLITE_VERSION_NUMBER<3007011
+# define sqlite3_stricmp strcmp
+#endif
+
+/*
+** Interpret zArg as an integer value, possibly with suffixes.
+*/
+static int integerValue(const char *zArg){
+  sqlite3_int64 v = 0;
+  static const struct { char *zSuffix; int iMult; } aMult[] = {
+    { "KiB", 1024 },
+    { "MiB", 1024*1024 },
+    { "GiB", 1024*1024*1024 },
+    { "KB",  1000 },
+    { "MB",  1000000 },
+    { "GB",  1000000000 },
+    { "K",   1000 },
+    { "M",   1000000 },
+    { "G",   1000000000 },
+  };
+  int i;
+  int isNeg = 0;
+  if( zArg[0]=='-' ){
+    isNeg = 1;
+    zArg++;
+  }else if( zArg[0]=='+' ){
+    zArg++;
+  }
+  if( zArg[0]=='0' && zArg[1]=='x' ){
+    int x;
+    zArg += 2;
+    while( (x = hexDigitValue(zArg[0]))>=0 ){
+      v = (v<<4) + x;
+      zArg++;
+    }
+  }else{
+    while( isdigit(zArg[0]) ){
+      v = v*10 + zArg[0] - '0';
+      zArg++;
+    }
+  }
+  for(i=0; i<sizeof(aMult)/sizeof(aMult[0]); i++){
+    if( sqlite3_stricmp(aMult[i].zSuffix, zArg)==0 ){
+      v *= aMult[i].iMult;
+      break;
+    }
+  }
+  if( v>0x7fffffff ) fatal_error("parameter too large - max 2147483648");
+  return (int)(isNeg? -v : v);
+}
+
+/* Return the current wall-clock time, in milliseconds */
+sqlite3_int64 speedtest1_timestamp(void){
+  static sqlite3_vfs *clockVfs = 0;
+  sqlite3_int64 t;
+  if( clockVfs==0 ) clockVfs = sqlite3_vfs_find(0);
+#if SQLITE_VERSION_NUMBER>=3007000
+  if( clockVfs->iVersion>=2 && clockVfs->xCurrentTimeInt64!=0 ){
+    clockVfs->xCurrentTimeInt64(clockVfs, &t);
+  }else
+#endif
+  {
+    double r;
+    clockVfs->xCurrentTime(clockVfs, &r);
+    t = (sqlite3_int64)(r*86400000.0);
+  }
+  return t;
+}
+
+/* Return a pseudo-random unsigned integer */
+unsigned int speedtest1_random(void){
+  g.x = (g.x>>1) ^ ((1+~(g.x&1)) & 0xd0000001);
+  g.y = g.y*1103515245 + 12345;
+  return g.x ^ g.y;
+}
+
+/* Map the value in within the range of 1...limit into another
+** number in a way that is chatic and invertable.
+*/
+unsigned swizzle(unsigned in, unsigned limit){
+  unsigned out = 0;
+  while( limit ){
+    out = (out<<1) | (in&1);
+    in >>= 1;
+    limit >>= 1;
+  }
+  return out;
+}
+
+/* Round up a number so that it is a power of two minus one
+*/
+unsigned roundup_allones(unsigned limit){
+  unsigned m = 1;
+  while( m<limit ) m = (m<<1)+1;
+  return m;
+}
+
+/* The speedtest1_numbername procedure below converts its argment (an integer)
+** into a string which is the English-language name for that number.
+** The returned string should be freed with sqlite3_free().
+**
+** Example:
+**
+**     speedtest1_numbername(123)   ->  "one hundred twenty three"
+*/
+int speedtest1_numbername(unsigned int n, char *zOut, int nOut){
+  static const char *ones[] = {  "zero", "one", "two", "three", "four", "five", 
+                  "six", "seven", "eight", "nine", "ten", "eleven", "twelve", 
+                  "thirteen", "fourteen", "fifteen", "sixteen", "seventeen",
+                  "eighteen", "nineteen" };
+  static const char *tens[] = { "", "ten", "twenty", "thirty", "forty",
+                 "fifty", "sixty", "seventy", "eighty", "ninety" };
+  int i = 0;
+
+  if( n>=1000000000 ){
+    i += speedtest1_numbername(n/1000000000, zOut+i, nOut-i);
+    sqlite3_snprintf(nOut-i, zOut+i, " billion");
+    i += (int)strlen(zOut+i);
+    n = n % 1000000000;
+  }
+  if( n>=1000000 ){
+    if( i && i<nOut-1 ) zOut[i++] = ' ';
+    i += speedtest1_numbername(n/1000000, zOut+i, nOut-i);
+    sqlite3_snprintf(nOut-i, zOut+i, " million");
+    i += (int)strlen(zOut+i);
+    n = n % 1000000;
+  }
+  if( n>=1000 ){
+    if( i && i<nOut-1 ) zOut[i++] = ' ';
+    i += speedtest1_numbername(n/1000, zOut+i, nOut-i);
+    sqlite3_snprintf(nOut-i, zOut+i, " thousand");
+    i += (int)strlen(zOut+i);
+    n = n % 1000;
+  }
+  if( n>=100 ){
+    if( i && i<nOut-1 ) zOut[i++] = ' ';
+    sqlite3_snprintf(nOut-i, zOut+i, "%s hundred", ones[n/100]);
+    i += (int)strlen(zOut+i);
+    n = n % 100;
+  }
+  if( n>=20 ){
+    if( i && i<nOut-1 ) zOut[i++] = ' ';
+    sqlite3_snprintf(nOut-i, zOut+i, "%s", tens[n/10]);
+    i += (int)strlen(zOut+i);
+    n = n % 10;
+  }
+  if( n>0 ){
+    if( i && i<nOut-1 ) zOut[i++] = ' ';
+    sqlite3_snprintf(nOut-i, zOut+i, "%s", ones[n]);
+    i += (int)strlen(zOut+i);
+  }
+  if( i==0 ){
+    sqlite3_snprintf(nOut-i, zOut+i, "zero");
+    i += (int)strlen(zOut+i);
+  }
+  return i;
+}
+
+
+/* Start a new test case */
+#define NAMEWIDTH 60
+static const char zDots[] =
+  ".......................................................................";
+void speedtest1_begin_test(int iTestNum, const char *zTestName, ...){
+  int n = (int)strlen(zTestName);
+  char *zName;
+  va_list ap;
+  va_start(ap, zTestName);
+  zName = sqlite3_vmprintf(zTestName, ap);
+  va_end(ap);
+  n = (int)strlen(zName);
+  if( n>NAMEWIDTH ){
+    zName[NAMEWIDTH] = 0;
+    n = NAMEWIDTH;
+  }
+  if( g.bSqlOnly ){
+    printf("/* %4d - %s%.*s */\n", iTestNum, zName, NAMEWIDTH-n, zDots);
+  }else{
+    printf("%4d - %s%.*s ", iTestNum, zName, NAMEWIDTH-n, zDots);
+    fflush(stdout);
+  }
+  sqlite3_free(zName);
+  g.nResult = 0;
+  g.iStart = speedtest1_timestamp();
+  g.x = 0xad131d0b;
+  g.y = 0x44f9eac8;
+}
+
+/* Complete a test case */
+void speedtest1_end_test(void){
+  sqlite3_int64 iElapseTime = speedtest1_timestamp() - g.iStart;
+  if( !g.bSqlOnly ){
+    g.iTotal += iElapseTime;
+    printf("%4d.%03ds\n", (int)(iElapseTime/1000), (int)(iElapseTime%1000));
+  }
+  if( g.pStmt ){
+    sqlite3_finalize(g.pStmt);
+    g.pStmt = 0;
+  }
+}
+
+/* Report end of testing */
+void speedtest1_final(void){
+  if( !g.bSqlOnly ){
+    printf("       TOTAL%.*s %4d.%03ds\n", NAMEWIDTH-5, zDots,
+           (int)(g.iTotal/1000), (int)(g.iTotal%1000));
+  }
+}
+
+/* Run SQL */
+void speedtest1_exec(const char *zFormat, ...){
+  va_list ap;
+  char *zSql;
+  va_start(ap, zFormat);
+  zSql = sqlite3_vmprintf(zFormat, ap);
+  va_end(ap);
+  if( g.bSqlOnly ){
+    int n = (int)strlen(zSql);
+    while( n>0 && (zSql[n-1]==';' || isspace(zSql[n-1])) ){ n--; }
+    printf("%.*s;\n", n, zSql);
+  }else{
+    char *zErrMsg = 0;
+    int rc = sqlite3_exec(g.db, zSql, 0, 0, &zErrMsg);
+    if( zErrMsg ) fatal_error("SQL error: %s\n%s\n", zErrMsg, zSql);
+    if( rc!=SQLITE_OK ) fatal_error("exec error: %s\n", sqlite3_errmsg(g.db));
+  }
+  sqlite3_free(zSql);
+}
+
+/* Prepare an SQL statement */
+void speedtest1_prepare(const char *zFormat, ...){
+  va_list ap;
+  char *zSql;
+  va_start(ap, zFormat);
+  zSql = sqlite3_vmprintf(zFormat, ap);
+  va_end(ap);
+  if( g.bSqlOnly ){
+    int n = (int)strlen(zSql);
+    while( n>0 && (zSql[n-1]==';' || isspace(zSql[n-1])) ){ n--; }
+    printf("%.*s;\n", n, zSql);
+  }else{
+    int rc;
+    if( g.pStmt ) sqlite3_finalize(g.pStmt);
+    rc = sqlite3_prepare_v2(g.db, zSql, -1, &g.pStmt, 0);
+    if( rc ){
+      fatal_error("SQL error: %s\n", sqlite3_errmsg(g.db));
+    }
+  }
+  sqlite3_free(zSql);
+}
+
+/* Run an SQL statement previously prepared */
+void speedtest1_run(void){
+  int i, n, len;
+  if( g.bSqlOnly ) return;
+  assert( g.pStmt );
+  g.nResult = 0;
+  while( sqlite3_step(g.pStmt)==SQLITE_ROW ){
+    n = sqlite3_column_count(g.pStmt);
+    for(i=0; i<n; i++){
+      const char *z = (const char*)sqlite3_column_text(g.pStmt, i);
+      if( z==0 ) z = "nil";
+      len = (int)strlen(z);
+      if( g.nResult+len<sizeof(g.zResult)-2 ){
+        if( g.nResult>0 ) g.zResult[g.nResult++] = ' ';
+        memcpy(g.zResult + g.nResult, z, len+1);
+        g.nResult += len;
+      }
+    }
+  }
+  if( g.bReprepare ){
+    sqlite3_stmt *pNew;
+    sqlite3_prepare_v2(g.db, sqlite3_sql(g.pStmt), -1, &pNew, 0);
+    sqlite3_finalize(g.pStmt);
+    g.pStmt = pNew;
+  }else{
+    sqlite3_reset(g.pStmt);
+  }
+}
+
+/* The sqlite3_trace() callback function */
+static void traceCallback(void *NotUsed, const char *zSql){
+  int n = (int)strlen(zSql);
+  while( n>0 && (zSql[n-1]==';' || isspace(zSql[n-1])) ) n--;
+  fprintf(stderr,"%.*s;\n", n, zSql);
+}
+
+/* Substitute random() function that gives the same random
+** sequence on each run, for repeatability. */
+static void randomFunc(
+  sqlite3_context *context,
+  int NotUsed,
+  sqlite3_value **NotUsed2
+){
+  sqlite3_result_int64(context, (sqlite3_int64)speedtest1_random());
+}
+
+/*
+** The main and default testset
+*/
+void testset_main(void){
+  int i;                        /* Loop counter */
+  int n;                        /* iteration count */
+  int sz;                       /* Size of the tables */
+  int maxb;                     /* Maximum swizzled value */
+  unsigned x1, x2;              /* Parameters */
+  int len;                      /* Length of the zNum[] string */
+  char zNum[2000];              /* A number name */
+
+  sz = n = g.szTest*500;
+  maxb = roundup_allones(sz);
+  speedtest1_begin_test(100, "%d INSERTs into table with no index", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_exec("CREATE TABLE t1(a INTEGER %s, b INTEGER %s, c TEXT %s);",
+                  g.zNN, g.zNN, g.zNN);
+  speedtest1_prepare("INSERT INTO t1 VALUES(?1,?2,?3); --  %d times", n);
+  for(i=1; i<=n; i++){
+    x1 = swizzle(i,maxb);
+    speedtest1_numbername(x1, zNum, sizeof(zNum));
+    sqlite3_bind_int64(g.pStmt, 1, (sqlite3_int64)x1);
+    sqlite3_bind_int(g.pStmt, 2, i);
+    sqlite3_bind_text(g.pStmt, 3, zNum, -1, SQLITE_STATIC);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+
+  n = sz;
+  speedtest1_begin_test(110, "%d ordered INSERTS with one index/PK", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_exec("CREATE TABLE t2(a INTEGER %s %s, b INTEGER %s, c TEXT %s) %s",
+                   g.zNN, g.zPK, g.zNN, g.zNN, g.zWR);
+  speedtest1_prepare("INSERT INTO t2 VALUES(?1,?2,?3); -- %d times", n);
+  for(i=1; i<=n; i++){
+    x1 = swizzle(i,maxb);
+    speedtest1_numbername(x1, zNum, sizeof(zNum));
+    sqlite3_bind_int(g.pStmt, 1, i);
+    sqlite3_bind_int64(g.pStmt, 2, (sqlite3_int64)x1);
+    sqlite3_bind_text(g.pStmt, 3, zNum, -1, SQLITE_STATIC);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+
+  n = sz;
+  speedtest1_begin_test(120, "%d unordered INSERTS with one index/PK", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_exec("CREATE TABLE t3(a INTEGER %s %s, b INTEGER %s, c TEXT %s) %s",
+                   g.zNN, g.zPK, g.zNN, g.zNN, g.zWR);
+  speedtest1_prepare("INSERT INTO t3 VALUES(?1,?2,?3); -- %d times", n);
+  for(i=1; i<=n; i++){
+    x1 = swizzle(i,maxb);
+    speedtest1_numbername(x1, zNum, sizeof(zNum));
+    sqlite3_bind_int(g.pStmt, 2, i);
+    sqlite3_bind_int64(g.pStmt, 1, (sqlite3_int64)x1);
+    sqlite3_bind_text(g.pStmt, 3, zNum, -1, SQLITE_STATIC);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+
+  n = g.szTest/2;
+  speedtest1_begin_test(130, "%d SELECTS, numeric BETWEEN, unindexed", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_prepare(
+    "SELECT count(*), avg(b), sum(length(c)) FROM t1\n"
+    " WHERE b BETWEEN ?1 AND ?2; -- %d times", n
+  );
+  for(i=1; i<=n; i++){
+    x1 = speedtest1_random()%maxb;
+    x2 = speedtest1_random()%10 + sz/5000 + x1;
+    sqlite3_bind_int(g.pStmt, 1, x1);
+    sqlite3_bind_int(g.pStmt, 2, x2);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+
+  n = g.szTest/5;
+  speedtest1_begin_test(140, "%d SELECTS, LIKE, unindexed", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_prepare(
+    "SELECT count(*), avg(b), sum(length(c)) FROM t1\n"
+    " WHERE c LIKE ?1; -- %d times", n
+  );
+  for(i=1; i<=n; i++){
+    x1 = speedtest1_random()%maxb;
+    zNum[0] = '%';
+    len = speedtest1_numbername(i, zNum+1, sizeof(zNum)-2);
+    zNum[len] = '%';
+    zNum[len+1] = 0;
+    sqlite3_bind_text(g.pStmt, 1, zNum, len, SQLITE_STATIC);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+
+  speedtest1_begin_test(150, "CREATE INDEX five times");
+  speedtest1_exec(
+      "BEGIN;\n"
+      "CREATE UNIQUE INDEX t1b ON t1(b);\n"
+      "CREATE INDEX t1c ON t1(c);\n"
+      "CREATE UNIQUE INDEX t2b ON t2(b);\n"
+      "CREATE INDEX t2c ON t2(c DESC);\n"
+      "CREATE INDEX t3bc ON t3(b,c);\n"
+      "COMMIT;\n"
+  );
+  speedtest1_end_test();
+
+
+  n = sz/5;
+  speedtest1_begin_test(160, "%d SELECTS, numeric BETWEEN, indexed", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_prepare(
+    "SELECT count(*), avg(b), sum(length(c)) FROM t1\n"
+    " WHERE b BETWEEN ?1 AND ?2; -- %d times", n
+  );
+  for(i=1; i<=n; i++){
+    x1 = speedtest1_random()%maxb;
+    x2 = speedtest1_random()%10 + sz/5000 + x1;
+    sqlite3_bind_int(g.pStmt, 1, x1);
+    sqlite3_bind_int(g.pStmt, 2, x2);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+
+  n = sz/5;
+  speedtest1_begin_test(161, "%d SELECTS, numeric BETWEEN, PK", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_prepare(
+    "SELECT count(*), avg(b), sum(length(c)) FROM t2\n"
+    " WHERE a BETWEEN ?1 AND ?2; -- %d times", n
+  );
+  for(i=1; i<=n; i++){
+    x1 = speedtest1_random()%maxb;
+    x2 = speedtest1_random()%10 + sz/5000 + x1;
+    sqlite3_bind_int(g.pStmt, 1, x1);
+    sqlite3_bind_int(g.pStmt, 2, x2);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+
+  n = sz/5;
+  speedtest1_begin_test(170, "%d SELECTS, text BETWEEN, indexed", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_prepare(
+    "SELECT count(*), avg(b), sum(length(c)) FROM t1\n"
+    " WHERE c BETWEEN ?1 AND (?1||'~'); -- %d times", n
+  );
+  for(i=1; i<=n; i++){
+    x1 = swizzle(i, maxb);
+    len = speedtest1_numbername(x1, zNum, sizeof(zNum)-1);
+    sqlite3_bind_text(g.pStmt, 1, zNum, len, SQLITE_STATIC);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+  n = sz;
+  speedtest1_begin_test(180, "%d INSERTS with three indexes", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_exec(
+    "CREATE TABLE t4(\n"
+    "  a INTEGER %s %s,\n"
+    "  b INTEGER %s,\n"
+    "  c TEXT %s\n"
+    ") %s",
+    g.zNN, g.zPK, g.zNN, g.zNN, g.zWR);
+  speedtest1_exec("CREATE INDEX t4b ON t4(b)");
+  speedtest1_exec("CREATE INDEX t4c ON t4(c)");
+  speedtest1_exec("INSERT INTO t4 SELECT * FROM t1");
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+  n = sz;
+  speedtest1_begin_test(190, "DELETE and REFILL one table", n);
+  speedtest1_exec(
+    "DELETE FROM t2;"
+    "INSERT INTO t2 SELECT * FROM t1;"
+  );
+  speedtest1_end_test();
+
+
+  speedtest1_begin_test(200, "VACUUM");
+  speedtest1_exec("VACUUM");
+  speedtest1_end_test();
+
+
+  speedtest1_begin_test(210, "ALTER TABLE ADD COLUMN, and query");
+  speedtest1_exec("ALTER TABLE t2 ADD COLUMN d DEFAULT 123");
+  speedtest1_exec("SELECT sum(d) FROM t2");
+  speedtest1_end_test();
+
+
+  n = sz/5;
+  speedtest1_begin_test(230, "%d UPDATES, numeric BETWEEN, indexed", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_prepare(
+    "UPDATE t2 SET d=b*2 WHERE b BETWEEN ?1 AND ?2; -- %d times", n
+  );
+  for(i=1; i<=n; i++){
+    x1 = speedtest1_random()%maxb;
+    x2 = speedtest1_random()%10 + sz/5000 + x1;
+    sqlite3_bind_int(g.pStmt, 1, x1);
+    sqlite3_bind_int(g.pStmt, 2, x2);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+
+  n = sz;
+  speedtest1_begin_test(240, "%d UPDATES of individual rows", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_prepare(
+    "UPDATE t2 SET d=b*3 WHERE a=?1; -- %d times", n
+  );
+  for(i=1; i<=n; i++){
+    x1 = speedtest1_random()%sz + 1;
+    sqlite3_bind_int(g.pStmt, 1, x1);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+  speedtest1_begin_test(250, "One big UPDATE of the whole %d-row table", sz);
+  speedtest1_exec("UPDATE t2 SET d=b*4");
+  speedtest1_end_test();
+
+
+  speedtest1_begin_test(260, "Query added column after filling");
+  speedtest1_exec("SELECT sum(d) FROM t2");
+  speedtest1_end_test();
+
+
+
+  n = sz/5;
+  speedtest1_begin_test(270, "%d DELETEs, numeric BETWEEN, indexed", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_prepare(
+    "DELETE FROM t2 WHERE b BETWEEN ?1 AND ?2; -- %d times", n
+  );
+  for(i=1; i<=n; i++){
+    x1 = speedtest1_random()%maxb + 1;
+    x2 = speedtest1_random()%10 + sz/5000 + x1;
+    sqlite3_bind_int(g.pStmt, 1, x1);
+    sqlite3_bind_int(g.pStmt, 2, x2);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+
+  n = sz;
+  speedtest1_begin_test(280, "%d DELETEs of individual rows", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_prepare(
+    "DELETE FROM t3 WHERE a=?1; -- %d times", n
+  );
+  for(i=1; i<=n; i++){
+    x1 = speedtest1_random()%sz + 1;
+    sqlite3_bind_int(g.pStmt, 1, x1);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+
+  speedtest1_begin_test(290, "Refill two %d-row tables using REPLACE", sz);
+  speedtest1_exec("REPLACE INTO t2(a,b,c) SELECT a,b,c FROM t1");
+  speedtest1_exec("REPLACE INTO t3(a,b,c) SELECT a,b,c FROM t1");
+  speedtest1_end_test();
+
+
+  n = sz/5;
+  speedtest1_begin_test(300, "%d four-ways joins", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_prepare(
+    "SELECT t1.c FROM t1, t2, t3, t4\n"
+    " WHERE t4.a BETWEEN ?1 AND ?2\n"
+    "   AND t3.a=t4.b\n"
+    "   AND t2.a=t3.b\n"
+    "   AND t1.c=t2.c"
+  );
+  for(i=1; i<=n; i++){
+    x1 = speedtest1_random()%sz + 1;
+    x2 = speedtest1_random()%10 + x1 + 4;
+    sqlite3_bind_int(g.pStmt, 1, x1);
+    sqlite3_bind_int(g.pStmt, 2, x2);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+
+
+  speedtest1_begin_test(980, "PRAGMA integrity_check");
+  speedtest1_exec("PRAGMA integrity_check");
+  speedtest1_end_test();
+
+
+  speedtest1_begin_test(990, "ANALYZE");
+  speedtest1_exec("ANALYZE");
+  speedtest1_end_test();
+}
+
+/*
+** A testset used for debugging speedtest1 itself.
+*/
+void testset_debug1(void){
+  unsigned i, n;
+  unsigned x1, x2;
+  char zNum[2000];              /* A number name */
+
+  n = g.szTest;
+  for(i=1; i<=n; i++){
+    x1 = swizzle(i, n);
+    x2 = swizzle(x1, n);
+    speedtest1_numbername(x1, zNum, sizeof(zNum));
+    printf("%5d %5d %5d %s\n", i, x1, x2, zNum);
+  }
+}
+
+int main(int argc, char **argv){
+  int doAutovac = 0;            /* True for --autovacuum */
+  int cacheSize = 0;            /* Desired cache size.  0 means default */
+  int doExclusive = 0;          /* True for --exclusive */
+  int nHeap = 0, mnHeap = 0;    /* Heap size from --heap */
+  int doIncrvac = 0;            /* True for --incrvacuum */
+  const char *zJMode = 0;       /* Journal mode */
+  const char *zKey = 0;         /* Encryption key */
+  int nLook = 0, szLook = 0;    /* --lookaside configuration */
+  int noSync = 0;               /* True for --nosync */
+  int pageSize = 0;             /* Desired page size.  0 means default */
+  int nPCache = 0, szPCache = 0;/* --pcache configuration */
+  int nScratch = 0, szScratch=0;/* --scratch configuration */
+  int showStats = 0;            /* True for --stats */
+  const char *zTSet = "main";   /* Which --testset torun */
+  int doTrace = 0;              /* True for --trace */
+  const char *zEncoding = 0;    /* --utf16be or --utf16le */
+  const char *zDbName = 0;      /* Name of the test database */
+
+  void *pHeap = 0;              /* Allocated heap space */
+  void *pLook = 0;              /* Allocated lookaside space */
+  void *pPCache = 0;            /* Allocated storage for pcache */
+  void *pScratch = 0;           /* Allocated storage for scratch */
+  int iCur, iHi;                /* Stats values, current and "highwater" */
+  int i;                        /* Loop counter */
+  int rc;                       /* API return code */
+
+  /* Process command-line arguments */
+  g.zWR = "";
+  g.zNN = "";
+  g.zPK = "UNIQUE";
+  g.szTest = 100;
+  for(i=1; i<argc; i++){
+    const char *z = argv[i];
+    if( z[0]=='-' ){
+      do{ z++; }while( z[0]=='-' );
+      if( strcmp(z,"autovacuum")==0 ){
+        doAutovac = 1;
+      }else if( strcmp(z,"cachesize")==0 ){
+        if( i>=argc-1 ) fatal_error("missing argument on %s\n", argv[i]);
+        i++;
+        cacheSize = integerValue(argv[i]);
+      }else if( strcmp(z,"exclusive")==0 ){
+        doExclusive = 1;
+      }else if( strcmp(z,"heap")==0 ){
+        if( i>=argc-2 ) fatal_error("missing arguments on %s\n", argv[i]);
+        nHeap = integerValue(argv[i+1]);
+        mnHeap = integerValue(argv[i+2]);
+        i += 2;
+      }else if( strcmp(z,"incrvacuum")==0 ){
+        doIncrvac = 1;
+      }else if( strcmp(z,"journal")==0 ){
+        if( i>=argc-1 ) fatal_error("missing argument on %s\n", argv[i]);
+        zJMode = argv[++i];
+      }else if( strcmp(z,"key")==0 ){
+        if( i>=argc-1 ) fatal_error("missing argument on %s\n", argv[i]);
+        zKey = argv[++i];
+      }else if( strcmp(z,"lookaside")==0 ){
+        if( i>=argc-2 ) fatal_error("missing arguments on %s\n", argv[i]);
+        nLook = integerValue(argv[i+1]);
+        szLook = integerValue(argv[i+2]);
+        i += 2;
+      }else if( strcmp(z,"nosync")==0 ){
+        noSync = 1;
+      }else if( strcmp(z,"notnull")==0 ){
+        g.zNN = "NOT NULL";
+      }else if( strcmp(z,"pagesize")==0 ){
+        if( i>=argc-1 ) fatal_error("missing argument on %s\n", argv[i]);
+        pageSize = integerValue(argv[++i]);
+      }else if( strcmp(z,"pcache")==0 ){
+        if( i>=argc-2 ) fatal_error("missing arguments on %s\n", argv[i]);
+        nPCache = integerValue(argv[i+1]);
+        szPCache = integerValue(argv[i+2]);
+        i += 2;
+      }else if( strcmp(z,"primarykey")==0 ){
+        g.zPK = "PRIMARY KEY";
+      }else if( strcmp(z,"reprepare")==0 ){
+        g.bReprepare = 1;
+      }else if( strcmp(z,"scratch")==0 ){
+        if( i>=argc-2 ) fatal_error("missing arguments on %s\n", argv[i]);
+        nScratch = integerValue(argv[i+1]);
+        szScratch = integerValue(argv[i+2]);
+        i += 2;
+      }else if( strcmp(z,"sqlonly")==0 ){
+        g.bSqlOnly = 1;
+      }else if( strcmp(z,"size")==0 ){
+        if( i>=argc-1 ) fatal_error("missing argument on %s\n", argv[i]);
+        g.szTest = integerValue(argv[++i]);
+      }else if( strcmp(z,"stats")==0 ){
+        showStats = 1;
+      }else if( strcmp(z,"testset")==0 ){
+        if( i>=argc-1 ) fatal_error("missing argument on %s\n", argv[i]);
+        zTSet = argv[++i];
+      }else if( strcmp(z,"trace")==0 ){
+        doTrace = 1;
+      }else if( strcmp(z,"utf16le")==0 ){
+        zEncoding = "utf16le";
+      }else if( strcmp(z,"utf16be")==0 ){
+        zEncoding = "utf16be";
+      }else if( strcmp(z,"without-rowid")==0 ){
+        g.zWR = "WITHOUT ROWID";
+        g.zPK = "PRIMARY KEY";
+      }else if( strcmp(z, "help")==0 || strcmp(z,"?")==0 ){
+        printf(zHelp, argv[0]);
+        exit(0);
+      }else{
+        fatal_error("unknown option: %s\nUse \"%s -?\" for help\n",
+                    argv[i], argv[0]);
+      }
+    }else if( zDbName==0 ){
+      zDbName = argv[i];
+    }else{
+      fatal_error("surplus argument: %s\nUse \"%s -?\" for help\n",
+                  argv[i], argv[0]);
+    }
+  }
+#if 0
+  if( zDbName==0 ){
+    fatal_error(zHelp, argv[0]);
+  }
+#endif
+  if( nHeap>0 ){
+    pHeap = malloc( nHeap );
+    if( pHeap==0 ) fatal_error("cannot allocate %d-byte heap\n", nHeap);
+    rc = sqlite3_config(SQLITE_CONFIG_HEAP, pHeap, nHeap, mnHeap);
+    if( rc ) fatal_error("heap configuration failed: %d\n", rc);
+  }
+  if( nPCache>0 && szPCache>0 ){
+    pPCache = malloc( nPCache*(sqlite3_int64)szPCache );
+    if( pPCache==0 ) fatal_error("cannot allocate %lld-byte pcache\n",
+                                 nPCache*(sqlite3_int64)szPCache);
+    rc = sqlite3_config(SQLITE_CONFIG_PAGECACHE, pPCache, szPCache, nPCache);
+    if( rc ) fatal_error("pcache configuration failed: %d\n", rc);
+  }
+  if( nScratch>0 && szScratch>0 ){
+    pScratch = malloc( nScratch*(sqlite3_int64)szScratch );
+    if( pScratch==0 ) fatal_error("cannot allocate %lld-byte scratch\n",
+                                 nScratch*(sqlite3_int64)szScratch);
+    rc = sqlite3_config(SQLITE_CONFIG_SCRATCH, pScratch, szScratch, nScratch);
+    if( rc ) fatal_error("scratch configuration failed: %d\n", rc);
+  }
+  if( nLook>0 ){
+    sqlite3_config(SQLITE_CONFIG_LOOKASIDE, 0, 0);
+  }
+ 
+  /* Open the database and the input file */
+  if( sqlite3_open(zDbName, &g.db) ){
+    fatal_error("Cannot open database file: %s\n", zDbName);
+  }
+  if( nLook>0 && szLook>0 ){
+    pLook = malloc( nLook*szLook );
+    rc = sqlite3_db_config(g.db, SQLITE_DBCONFIG_LOOKASIDE, pLook, szLook,nLook);
+    if( rc ) fatal_error("lookaside configuration failed: %d\n", rc);
+  }
+
+  /* Set database connection options */
+  sqlite3_create_function(g.db, "random", 0, SQLITE_UTF8, 0, randomFunc, 0, 0);
+  if( doTrace ) sqlite3_trace(g.db, traceCallback, 0);
+  if( zKey ){
+    speedtest1_exec("PRAGMA key('%s')", zKey);
+  }
+  if( zEncoding ){
+    speedtest1_exec("PRAGMA encoding=%s", zEncoding);
+  }
+  if( doAutovac ){
+    speedtest1_exec("PRAGMA auto_vacuum=FULL");
+  }else if( doIncrvac ){
+    speedtest1_exec("PRAGMA auto_vacuum=INCREMENTAL");
+  }
+  if( pageSize ){
+    speedtest1_exec("PRAGMA page_size=%d", pageSize);
+  }
+  if( cacheSize ){
+    speedtest1_exec("PRAGMA cache_size=%d", cacheSize);
+  }
+  if( noSync ) speedtest1_exec("PRAGMA synchronous=OFF");
+  if( doExclusive ){
+    speedtest1_exec("PRAGMA locking_mode=EXCLUSIVE");
+  }
+  if( zJMode ){
+    speedtest1_exec("PRAGMA journal_mode=%s", zJMode);
+  }
+
+  if( strcmp(zTSet,"main")==0 ){
+    testset_main();
+  }else if( strcmp(zTSet,"debug1")==0 ){
+    testset_debug1();
+  }else{
+    fatal_error("unknown testset: \"%s\"\n", zTSet);
+  }
+  speedtest1_final();
+
+  /* Database connection statistics printed after both prepared statements
+  ** have been finalized */
+#if SQLITE_VERSION_NUMBER>=3007009
+  if( showStats ){
+    sqlite3_db_status(g.db, SQLITE_DBSTATUS_LOOKASIDE_USED, &iCur, &iHi, 0);
+    printf("-- Lookaside Slots Used:        %d (max %d)\n", iCur,iHi);
+    sqlite3_db_status(g.db, SQLITE_DBSTATUS_LOOKASIDE_HIT, &iCur, &iHi, 0);
+    printf("-- Successful lookasides:       %d\n", iHi);
+    sqlite3_db_status(g.db, SQLITE_DBSTATUS_LOOKASIDE_MISS_SIZE, &iCur,&iHi,0);
+    printf("-- Lookaside size faults:       %d\n", iHi);
+    sqlite3_db_status(g.db, SQLITE_DBSTATUS_LOOKASIDE_MISS_FULL, &iCur,&iHi,0);
+    printf("-- Lookaside OOM faults:        %d\n", iHi);
+    sqlite3_db_status(g.db, SQLITE_DBSTATUS_CACHE_USED, &iCur, &iHi, 0);
+    printf("-- Pager Heap Usage:            %d bytes\n", iCur);
+    sqlite3_db_status(g.db, SQLITE_DBSTATUS_CACHE_HIT, &iCur, &iHi, 1);
+    printf("-- Page cache hits:             %d\n", iCur);
+    sqlite3_db_status(g.db, SQLITE_DBSTATUS_CACHE_MISS, &iCur, &iHi, 1);
+    printf("-- Page cache misses:           %d\n", iCur);
+#if SQLITE_VERSION_NUMBER>=3007012
+    sqlite3_db_status(g.db, SQLITE_DBSTATUS_CACHE_WRITE, &iCur, &iHi, 1);
+    printf("-- Page cache writes:           %d\n", iCur); 
+#endif
+    sqlite3_db_status(g.db, SQLITE_DBSTATUS_SCHEMA_USED, &iCur, &iHi, 0);
+    printf("-- Schema Heap Usage:           %d bytes\n", iCur); 
+    sqlite3_db_status(g.db, SQLITE_DBSTATUS_STMT_USED, &iCur, &iHi, 0);
+    printf("-- Statement Heap Usage:        %d bytes\n", iCur); 
+  }
+#endif
+
+  sqlite3_close(g.db);
+
+  /* Global memory usage statistics printed after the database connection
+  ** has closed.  Memory usage should be zero at this point. */
+  if( showStats ){
+    sqlite3_status(SQLITE_STATUS_MEMORY_USED, &iCur, &iHi, 0);
+    printf("-- Memory Used (bytes):         %d (max %d)\n", iCur,iHi);
+#if SQLITE_VERSION_NUMBER>=3007000
+    sqlite3_status(SQLITE_STATUS_MALLOC_COUNT, &iCur, &iHi, 0);
+    printf("-- Outstanding Allocations:     %d (max %d)\n", iCur,iHi);
+#endif
+    sqlite3_status(SQLITE_STATUS_PAGECACHE_OVERFLOW, &iCur, &iHi, 0);
+    printf("-- Pcache Overflow Bytes:       %d (max %d)\n", iCur,iHi);
+    sqlite3_status(SQLITE_STATUS_SCRATCH_OVERFLOW, &iCur, &iHi, 0);
+    printf("-- Scratch Overflow Bytes:      %d (max %d)\n", iCur,iHi);
+    sqlite3_status(SQLITE_STATUS_MALLOC_SIZE, &iCur, &iHi, 0);
+    printf("-- Largest Allocation:          %d bytes\n",iHi);
+    sqlite3_status(SQLITE_STATUS_PAGECACHE_SIZE, &iCur, &iHi, 0);
+    printf("-- Largest Pcache Allocation:   %d bytes\n",iHi);
+    sqlite3_status(SQLITE_STATUS_SCRATCH_SIZE, &iCur, &iHi, 0);
+    printf("-- Largest Scratch Allocation:  %d bytes\n", iHi);
+  }
+
+  /* Release memory */
+  free( pLook );
+  free( pPCache );
+  free( pScratch );
+  free( pHeap );
+  return 0;
+}
@@ -265,10 +265,10 @@ do_test 6.1 {
 } {}

 do_execsql_test 6.2 {
-  SELECT * FROM aux.sqlite_master;
+  SELECT type,name,tbl_name,sql FROM aux.sqlite_master;
  INSERT INTO aux.t1 VALUES(1,2,3);
 } {
-  table t1 t1 2 {CREATE TABLE t1(a, b, c)}
+  table t1 t1 {CREATE TABLE t1(a, b, c)}
 }

 do_catchsql_test 6.3 {
@@ -1251,6 +1251,7 @@ proc crashsql {args} {
  set blocksize ""
  set crashdelay 1
  set prngseed 0
+  set opendb { sqlite3 db test.db -vfs crash }
  set tclbody {}
  set crashfile ""
  set dc ""
@@ -1262,6 +1263,7 @@ proc crashsql {args} {
    set z2 [lindex $args [expr $ii+1]]

    if     {$n>1 && [string first $z -delay]==0}     {set crashdelay $z2} \
+    elseif {$n>1 && [string first $z -opendb]==0}    {set opendb $z2} \
    elseif {$n>1 && [string first $z -seed]==0}      {set prngseed $z2} \
    elseif {$n>1 && [string first $z -file]==0}      {set crashfile $z2}  \
    elseif {$n>1 && [string first $z -tclbody]==0}   {set tclbody $z2}  \
@@ -1283,7 +1285,7 @@ proc crashsql {args} {
  puts $f "sqlite3_crash_enable 1"
  puts $f "sqlite3_crashparams $blocksize $dc $crashdelay $cfile"
  puts $f "sqlite3_test_control_pending_byte $::sqlite_pending_byte"
-  puts $f "sqlite3 db test.db -vfs crash"
+  puts $f $opendb 

  # This block sets the cache size of the main database to 10
  # pages. This is done in case the build is configured to omit
@@ -1291,6 +1293,7 @@ proc crashsql {args} {
  puts $f {db eval {SELECT * FROM sqlite_master;}}
  puts $f {set bt [btree_from_db db]}
  puts $f {btree_set_cache_size $bt 10}
+
  if {$prngseed} {
    set seed [expr {$prngseed%10007+1}]
    # puts seed=$seed
@@ -1886,5 +1889,11 @@ set AUTOVACUUM $sqlite_options(default_autovacuum)
 # Make sure the FTS enhanced query syntax is disabled.
 set sqlite_fts3_enable_parentheses 0

+# During testing, assume that all database files are well-formed.  The
+# few test cases that deliberately corrupt database files should rescind 
+# this setting by invoking "database_can_be_corrupt"
+#
+database_never_corrupt
+
 source $testdir/thread_common.tcl
 source $testdir/malloc_common.tcl
@@ -161,7 +161,7 @@ for {set i 2} {$i<=30} {incr i} {
          z = CASE WHEN id<$max_rowid
                   THEN zeroblob((random()&65535)%5000 + 1000) END;
    }
-  } {1 {t1.z may not be NULL}}
+  } {1 {NOT NULL constraint failed: t1.z}}
  do_test trans2-$i.11 {
    db eval {SELECT md5sum(u1), md5sum(u2) FROM t1 ORDER BY id}
  } $newres
@@ -185,7 +185,7 @@ for {set i 2} {$i<=30} {incr i} {
          z = CASE WHEN id<$max1
                   THEN zeroblob((random()&65535)%5000 + 1000) END;
    }
-  } {1 {t1.z may not be NULL}}
+  } {1 {NOT NULL constraint failed: t1.z}}
  do_test trans2-$i.31 {
    db eval {SELECT md5sum(u1), md5sum(u2) FROM t1 ORDER BY id}
  } $origres
@@ -0,0 +1,74 @@
+# 2013 November 22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is recovery from transient manditory locks
+# that sometimes appear on database files due to anti-virus software.
+#
+
+if {$tcl_platform(platform)!="windows"} return
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !win32malloc {
+  finish_test
+  return
+}
+
+set testprefix win32heap
+
+do_test 1.1 {
+  catch {db close}
+  sqlite3_shutdown
+  sqlite3_config_heap_size 1048576
+  sqlite3_initialize
+} {SQLITE_OK}
+
+do_test 1.2 {
+  sqlite3 db test.db
+  catchsql {
+    CREATE TABLE t1(x);
+  }
+} {0 {}}
+
+do_test 1.3 {
+  catchsql {
+    INSERT INTO t1 (x) VALUES(RANDOMBLOB(1048576));
+  }
+} {1 {out of memory}}
+
+do_test 1.4 {
+  catchsql {
+    SELECT COUNT(*) FROM t1;
+  }
+} {0 0}
+
+do_test 1.5 {
+  catch {db close}
+  sqlite3_shutdown
+  sqlite3_config_heap_size 0
+  sqlite3_initialize
+} {SQLITE_OK}
+
+do_test 1.6 {
+  sqlite3 db test.db
+  catchsql {
+    INSERT INTO t1 (x) VALUES(RANDOMBLOB(1048576));
+  }
+} {0 {}}
+
+do_test 1.7 {
+  catchsql {
+    SELECT COUNT(*) FROM t1;
+  }
+} {0 1}
+
+finish_test
@@ -19,11 +19,19 @@ set testdir [file dirname $argv0]
 source $testdir/tester.tcl
 set testprefix win32longpath

+do_test 1.0 {
+  file_control_vfsname db
+} win32
+
 db close
 set path [file nativename [get_pwd]]
 sqlite3 db [file join $path test.db] -vfs win32-longpath

 do_test 1.1 {
+  file_control_vfsname db
+} win32-longpath
+
+do_test 1.2 {
  db eval {
    BEGIN EXCLUSIVE;
    CREATE TABLE t1(x);
@@ -47,13 +55,13 @@ make_win32_dir $longPath(3)

 set fileName $longPath(3)\\test.db

-do_test 1.2 {
+do_test 1.3 {
  list [catch {sqlite3 db2 [string range $fileName 4 end]} msg] $msg
 } {1 {unable to open database file}}

 sqlite3 db3 $fileName -vfs win32-longpath

-do_test 1.3 {
+do_test 1.4 {
  db3 eval {
    BEGIN EXCLUSIVE;
    CREATE TABLE t1(x);
@@ -71,13 +79,13 @@ db3 close

 sqlite3 db3 $fileName -vfs win32-longpath

-do_test 1.4 {
+do_test 1.5 {
  db3 eval {
    PRAGMA journal_mode = WAL;
  }
 } {wal}

-do_test 1.5 {
+do_test 1.6 {
  db3 eval {
    BEGIN EXCLUSIVE;
    INSERT INTO t1 VALUES(9);
@@ -0,0 +1,201 @@
+# 2013-11-26
+#
+# 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.
+#
+#***********************************************************************
+#
+# Requirements testing for WITHOUT ROWID tables.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+
+# EVIDENCE-OF: R-36924-43758 By default, every row in SQLite has a
+# special column, usually called the "rowid", that uniquely identifies
+# that row within the table.
+#
+# EVIDENCE-OF: R-32341-39358 However if the phrase "WITHOUT ROWID" is
+# added to the end of a CREATE TABLE statement, then the special "rowid"
+# column is omitted.
+#
+do_execsql_test without_rowid5-1.1 {
+  CREATE TABLE t1(a PRIMARY KEY,b,c);
+  CREATE TABLE t1w(a PRIMARY KEY,b,c) WITHOUT ROWID;
+  INSERT INTO t1 VALUES(1565,681,1148),(1429,1190,1619),(425,358,1306);
+  INSERT INTO t1w SELECT a,b,c FROM t1;
+  SELECT rowid, _rowid_, oid FROM t1 ORDER BY a DESC;
+} {1 1 1 2 2 2 3 3 3}
+do_catchsql_test without_rowid5-1.2 {
+  SELECT rowid FROM t1w;
+} {1 {no such column: rowid}}
+do_catchsql_test without_rowid5-1.3 {
+  SELECT _rowid_ FROM t1w;
+} {1 {no such column: _rowid_}}
+do_catchsql_test without_rowid5-1.4 {
+  SELECT oid FROM t1w;
+} {1 {no such column: oid}}
+
+# EVIDENCE-OF: R-00217-01605 To create a WITHOUT ROWID table, simply add
+# the keywords "WITHOUT ROWID" to the end of the CREATE TABLE statement.
+# For example: CREATE TABLE IF NOT EXISTS wordcount( word TEXT PRIMARY
+# KEY, cnt INTEGER ) WITHOUT ROWID;
+#
+do_execsql_test without_rowid5-2.1 {
+  CREATE TABLE IF NOT EXISTS wordcount(
+    word TEXT PRIMARY KEY,
+    cnt INTEGER
+  ) WITHOUT ROWID;
+  INSERT INTO wordcount VALUES('one',1);
+} {}
+do_catchsql_test without_rowid5-2.2 {
+  SELECT rowid FROM wordcount;
+} {1 {no such column: rowid}}
+
+# EVIDENCE-OF: R-24770-17719 As with all SQL syntax, the case of the
+# keywords does not matter. One can write "WITHOUT rowid" or "without
+# rowid" or "WiThOuT rOwId" and it will mean the same thing.
+#
+do_execsql_test without_rowid5-2.3 {
+  CREATE TABLE IF NOT EXISTS wordcount_b(
+    word TEXT PRIMARY KEY,
+    cnt INTEGER
+  ) WITHOUT rowid;
+  INSERT INTO wordcount_b VALUES('one',1);
+} {}
+do_catchsql_test without_rowid5-2.4 {
+  SELECT rowid FROM wordcount_b;
+} {1 {no such column: rowid}}
+do_execsql_test without_rowid5-2.5 {
+  CREATE TABLE IF NOT EXISTS wordcount_c(
+    word TEXT PRIMARY KEY,
+    cnt INTEGER
+  ) without rowid;
+  INSERT INTO wordcount_c VALUES('one',1);
+} {}
+do_catchsql_test without_rowid5-2.6 {
+  SELECT rowid FROM wordcount_c;
+} {1 {no such column: rowid}}
+do_execsql_test without_rowid5-2.7 {
+  CREATE TABLE IF NOT EXISTS wordcount_d(
+    word TEXT PRIMARY KEY,
+    cnt INTEGER
+  ) WITHOUT rowid;
+  INSERT INTO wordcount_d VALUES('one',1);
+} {}
+do_catchsql_test without_rowid5-2.8 {
+  SELECT rowid FROM wordcount_d;
+} {1 {no such column: rowid}}
+
+# EVIDENCE-OF: R-01418-51310 However, only "rowid" works as the keyword
+# in the CREATE TABLE statement.
+#
+do_catchsql_test without_rowid5-3.1 {
+  CREATE TABLE IF NOT EXISTS error1(
+    word TEXT PRIMARY KEY,
+    cnt INTEGER
+  ) WITHOUT _rowid_;
+} {1 {unknown table option: _rowid_}}  
+do_catchsql_test without_rowid5-3.2 {
+  CREATE TABLE IF NOT EXISTS error2(
+    word TEXT PRIMARY KEY,
+    cnt INTEGER
+  ) WITHOUT oid;
+} {1 {unknown table option: oid}}  
+
+# EVIDENCE-OF: R-58033-17334 An error is raised if a CREATE TABLE
+# statement with the WITHOUT ROWID clause lacks a PRIMARY KEY.
+#
+# EVIDENCE-OF: R-63443-09418 Every WITHOUT ROWID table must have a
+# PRIMARY KEY.
+#
+# EVIDENCE-OF: R-27966-31616 An attempt to create a WITHOUT ROWID table
+# without a PRIMARY KEY results in an error.
+#
+do_catchsql_test without_rowid5-4.1 {
+  CREATE TABLE IF NOT EXISTS error3(
+    word TEXT UNIQUE,
+    cnt INTEGER
+  ) WITHOUT ROWID;
+} {1 {PRIMARY KEY missing on table error3}}
+
+# EVIDENCE-OF: R-48230-36247 The special behaviors associated "INTEGER
+# PRIMARY KEY" do not apply on WITHOUT ROWID tables.
+#
+do_execsql_test without_rowid5-5.1 {
+  CREATE TABLE ipk(key INTEGER PRIMARY KEY, val TEXT) WITHOUT ROWID;
+  INSERT INTO ipk VALUES('rival','bonus'); -- ok to insert non-integer key
+  SELECT * FROM ipk;
+} {rival bonus}
+do_catchsql_test without_rowid5-5.2 {
+  INSERT INTO ipk VALUES(NULL,'sample'); -- no automatic generation of keys
+} {1 {NOT NULL constraint failed: ipk.key}}
+
+# EVIDENCE-OF: R-33142-02092 AUTOINCREMENT does not work on WITHOUT
+# ROWID tables.
+#
+# EVIDENCE-OF: R-53084-07740 An error is raised if the "AUTOINCREMENT"
+# keyword is used in the CREATE TABLE statement for a WITHOUT ROWID
+# table.
+#
+do_catchsql_test without_rowid5-5.3 {
+  CREATE TABLE ipk2(key INTEGER PRIMARY KEY AUTOINCREMENT, val TEXT)WITHOUT ROWID;
+} {1 {AUTOINCREMENT not allowed on WITHOUT ROWID tables}}
+
+# EVIDENCE-OF: R-27831-00579 NOT NULL is enforced on every column of the
+# PRIMARY KEY in a WITHOUT ROWID table.
+#
+# EVIDENCE-OF: R-29781-51289 So, ordinary rowid tables in SQLite violate
+# the SQL standard and allow NULL values in PRIMARY KEY fields.
+#
+# EVIDENCE-OF: R-27472-62612 But WITHOUT ROWID tables do follow the
+# standard and will throw an error on any attempt to insert a NULL into
+# a PRIMARY KEY column.
+#
+do_execsql_test without_rowid5-5.4 {
+  CREATE TABLE nn(a, b, c, d, e, PRIMARY KEY(c,a,e));
+  CREATE TABLE nnw(a, b, c, d, e, PRIMARY KEY(c,a,e)) WITHOUT ROWID;
+  INSERT INTO nn VALUES(1,2,3,4,5);
+  INSERT INTO nnw VALUES(1,2,3,4,5);
+} {}
+do_execsql_test without_rowid5-5.5 {
+  INSERT INTO nn VALUES(NULL, 3,4,5,6);
+  INSERT INTO nn VALUES(3,4,NULL,7,8);
+  INSERT INTO nn VALUES(4,5,6,7,NULL);
+  SELECT count(*) FROM nn;
+} {4}
+do_catchsql_test without_rowid5-5.6 {
+  INSERT INTO nnw VALUES(NULL, 3,4,5,6);
+} {1 {NOT NULL constraint failed: nnw.a}}
+do_catchsql_test without_rowid5-5.7 {
+  INSERT INTO nnw VALUES(3,4,NULL,7,8)
+} {1 {NOT NULL constraint failed: nnw.c}}
+do_catchsql_test without_rowid5-5.8 {
+  INSERT INTO nnw VALUES(4,5,6,7,NULL)
+} {1 {NOT NULL constraint failed: nnw.e}}
+do_execsql_test without_rowid5-5.9 {
+  SELECT count(*) FROM nnw;
+} {1}
+
+# EVIDENCE-OF: R-12643-30541 The incremental blob I/O mechanism does not
+# work for WITHOUT ROWID tables.
+#
+# EVIDENCE-OF: R-25760-33257 The sqlite3_blob_open() interface will fail
+# for a WITHOUT ROWID table.
+#
+do_execsql_test without_rowid5-6.1 {
+  CREATE TABLE b1(a INTEGER PRIMARY KEY, b BLOB) WITHOUT ROWID;
+  INSERT INTO b1 VALUES(1,x'0102030405060708090a0b0c0d0e0f');
+} {}
+do_test without_rowid5-6.2 {
+  set rc [catch {db incrblob b1 b 1} msg]
+  lappend rc $msg
+} {1 {cannot open table without rowid: b1}}
+
+
+finish_test
@@ -29,6 +29,7 @@
 **     --commit NNN         Commit after every NNN operations
 **     --nosync             Use PRAGMA synchronous=OFF
 **     --journal MMMM       Use PRAGMA journal_mode=MMMM
+**     --timer              Time the operation of this program
 **
 ** Modes:
 **
@@ -80,6 +81,21 @@
 #include <stdarg.h>
 #include "sqlite3.h"

+/* Return the current wall-clock time */
+static sqlite3_int64 realTime(void){
+  static sqlite3_vfs *clockVfs = 0;
+  sqlite3_int64 t;
+  if( clockVfs==0 ) clockVfs = sqlite3_vfs_find(0);
+  if( clockVfs->iVersion>=1 && clockVfs->xCurrentTimeInt64!=0 ){
+    clockVfs->xCurrentTimeInt64(clockVfs, &t);
+  }else{
+    double r;
+    clockVfs->xCurrentTime(clockVfs, &r);
+    t = (sqlite3_int64)(r*86400000.0);
+  }
+  return t;
+}
+
 /* Print an error message and exit */
 static void fatal_error(const char *zMsg, ...){
  va_list ap;
@@ -100,7 +116,7 @@ static int printResult(void *NotUsed, int nArg, char **azArg, char **azNm){
  int i;
  printf("--");
  for(i=0; i<nArg; i++){
-    printf(" %s", azArg[i]);
+    printf(" %s", azArg[i] ? azArg[i] : "(null)");
  }
  printf("\n");
  return 0;
@@ -186,6 +202,7 @@ int main(int argc, char **argv){
  int doTrace = 0;              /* True for --trace */
  int showStats = 0;            /* True for --stats */
  int showSummary = 0;          /* True for --summary */
+  int showTimer = 0;            /* True for --timer */
  int cacheSize = 0;            /* Desired cache size.  0 means default */
  int pageSize = 0;             /* Desired page size.  0 means default */
  int commitInterval = 0;       /* How often to commit.  0 means never */
@@ -203,6 +220,7 @@ int main(int argc, char **argv){
  int rc;                       /* Return code from an SQLite interface */
  int iCur, iHiwtr;             /* Statistics values, current and "highwater" */
  sqlite3_int64 sumCnt = 0;     /* Sum in QUERY mode */
+  sqlite3_int64 startTime;
  char zInput[2000];            /* A single line of input */

  /* Process command-line arguments */
@@ -234,6 +252,8 @@ int main(int argc, char **argv){
        showStats = 1;
      }else if( strcmp(z,"summary")==0 ){
        showSummary = 1;
+      }else if( strcmp(z,"timer")==0 ){
+        showTimer = i;
      }else if( strcmp(z,"cachesize")==0 && i<argc-1 ){
        i++;
        cacheSize = atoi(argv[i]);
@@ -259,6 +279,7 @@ int main(int argc, char **argv){
  if( zDbName==0 ){
    fatal_error("Usage: %s [--options] DATABASE [INPUTFILE]\n", argv[0]);
  }
+  startTime = realTime();

  /* Open the database and the input file */
  if( sqlite3_open(zDbName, &db) ){
@@ -449,6 +470,15 @@ int main(int argc, char **argv){
    sqlite3_finalize(pSelect);
  }

+
+  if( showTimer ){
+    sqlite3_int64 elapseTime = realTime() - startTime;
+    fprintf(stderr, "%3d.%03d wordcount", (int)(elapseTime/1000),
+                                   (int)(elapseTime%1000));
+    for(i=1; i<argc; i++) if( i!=showTimer ) fprintf(stderr, " %s", argv[i]);
+    fprintf(stderr, "\n");
+  }
+
  if( showSummary ){
    sqlite3_create_function(db, "checksum", -1, SQLITE_UTF8, 0,
                            0, checksumStep, checksumFinalize);
@@ -459,7 +489,7 @@ int main(int argc, char **argv){
      "SELECT 'avg(cnt):  ', avg(cnt) FROM wordcount;\n"
      "SELECT 'sum(cnt=1):', sum(cnt=1) FROM wordcount;\n"
      "SELECT 'top 10:    ', group_concat(word, ', ') FROM "
-         "(SELECT word FROM wordcount ORDER BY cnt DESC LIMIT 10);\n"
+         "(SELECT word FROM wordcount ORDER BY cnt DESC, word LIMIT 10);\n"
      "SELECT 'checksum:  ', checksum(word, cnt) FROM "
         "(SELECT word, cnt FROM wordcount ORDER BY word);\n"
      "PRAGMA integrity_check;\n",
--- a/Show More
+++ b/Show More
@@ -1 +1 @@
 .8.2
 .8.3