Version 3.42.1

FossilOrigin-Name: 4a8bf3c146c24759709eec55cdb0a9d2153c3a40e6645727c55c0404a99b5b4a
Fix the same potential integer overflow problem of [5508b56fd24016c1] in
2025-08-06 11:05:53 +00:00 · 2025-08-05 21:04:04 +00:00 · 2025-08-05 20:33:14 +00:00 · 2025-08-05 19:36:05 +00:00 · 2023-10-12 20:03:26 +00:00 · 2023-09-08 19:32:48 +00:00
36 changed files with 863 additions and 286 deletions
@@ -1 +1 @@
-3.42.0
+3.42.1
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for sqlite 3.42.0.
+# Generated by GNU Autoconf 2.69 for sqlite 3.42.1.
 #
 #
 # Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
@@ -726,8 +726,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='sqlite'
 PACKAGE_TARNAME='sqlite'
-PACKAGE_VERSION='3.42.0'
-PACKAGE_STRING='sqlite 3.42.0'
+PACKAGE_VERSION='3.42.1'
+PACKAGE_STRING='sqlite 3.42.1'
 PACKAGE_BUGREPORT=''
 PACKAGE_URL=''

@@ -1470,7 +1470,7 @@ 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 3.42.0 to adapt to many kinds of systems.
+\`configure' configures sqlite 3.42.1 to adapt to many kinds of systems.

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

@@ -1535,7 +1535,7 @@ fi

 if test -n "$ac_init_help"; then
  case $ac_init_help in
-     short | recursive ) echo "Configuration of sqlite 3.42.0:";;
+     short | recursive ) echo "Configuration of sqlite 3.42.1:";;
   esac
  cat <<\_ACEOF

@@ -1665,7 +1665,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
  cat <<\_ACEOF
-sqlite configure 3.42.0
+sqlite configure 3.42.1
 generated by GNU Autoconf 2.69

 Copyright (C) 2012 Free Software Foundation, Inc.
@@ -2084,7 +2084,7 @@ 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 3.42.0, which was
+It was created by sqlite $as_me 3.42.1, which was
 generated by GNU Autoconf 2.69.  Invocation command line was

  $ $0 $@
@@ -12457,7 +12457,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by sqlite $as_me 3.42.0, which was
+This file was extended by sqlite $as_me 3.42.1, which was
 generated by GNU Autoconf 2.69.  Invocation command line was

  CONFIG_FILES    = $CONFIG_FILES
@@ -12523,7 +12523,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-sqlite config.status 3.42.0
+sqlite config.status 3.42.1
 configured by $0, generated by GNU Autoconf 2.69,
  with options \\"\$ac_cs_config\\"

@@ -1349,9 +1349,9 @@ static int fts5DlidxLvlNext(Fts5DlidxLvl *pLvl){
    }

    if( iOff<pData->nn ){
-      i64 iVal;
+      u64 iVal;
      pLvl->iLeafPgno += (iOff - pLvl->iOff) + 1;
-      iOff += fts5GetVarint(&pData->p[iOff], (u64*)&iVal);
+      iOff += fts5GetVarint(&pData->p[iOff], &iVal);
      pLvl->iRowid += iVal;
      pLvl->iOff = iOff;
    }else{
@@ -2691,7 +2691,6 @@ static int fts5MultiIterDoCompare(Fts5Iter *pIter, int iOut){
      assert_nc( i2!=0 );
      pRes->bTermEq = 1;
      if( p1->iRowid==p2->iRowid ){
-        p1->bDel = p2->bDel;
        return i2;
      }
      res = ((p1->iRowid > p2->iRowid)==pIter->bRev) ? -1 : +1;
@@ -3911,7 +3910,7 @@ static void fts5WriteDlidxAppend(
    }

    if( pDlidx->bPrevValid ){
-      iVal = iRowid - pDlidx->iPrev;
+      iVal = (u64)iRowid - (u64)pDlidx->iPrev;
    }else{
      i64 iPgno = (i==0 ? pWriter->writer.pgno : pDlidx[-1].pgno);
      assert( pDlidx->buf.n==0 );
@@ -4711,7 +4710,6 @@ static void fts5DoSecureDelete(
  int iIdx = 0;
  int iStart = 0;
  int iKeyOff = 0;
-  int iPrevKeyOff = 0;
  int iDelKeyOff = 0;       /* Offset of deleted key, if any */

  nIdx = nPg-iPgIdx;
@@ -4775,28 +4773,33 @@ static void fts5DoSecureDelete(
  }

  iOff = iStart;
-  if( iNextOff>=iPgIdx ){
-    int pgno = pSeg->iLeafPgno+1;
-    fts5SecureDeleteOverflow(p, pSeg->pSeg, pgno, &bLastInDoclist);
-    iNextOff = iPgIdx;
-  }else{
-    /* Set bLastInDoclist to true if the entry being removed is the last
-    ** in its doclist.  */
-    for(iIdx=0, iKeyOff=0; iIdx<nIdx; /* no-op */){
-      u32 iVal = 0;
-      iIdx += fts5GetVarint32(&aIdx[iIdx], iVal);
-      iKeyOff += iVal;
-      if( iKeyOff==iNextOff ){
-        bLastInDoclist = 1;
+  if( pSeg->bDel==0 ){
+    if( iNextOff>=iPgIdx ){
+      int pgno = pSeg->iLeafPgno+1;
+      fts5SecureDeleteOverflow(p, pSeg->pSeg, pgno, &bLastInDoclist);
+      iNextOff = iPgIdx;
+    }else{
+      /* Set bLastInDoclist to true if the entry being removed is the last
+      ** in its doclist.  */
+      for(iIdx=0, iKeyOff=0; iIdx<nIdx; /* no-op */){
+        u32 iVal = 0;
+        iIdx += fts5GetVarint32(&aIdx[iIdx], iVal);
+        iKeyOff += iVal;
+        if( iKeyOff==iNextOff ){
+          bLastInDoclist = 1;
+        }
      }
    }
+
+    if( fts5GetU16(&aPg[0])==iStart && (bLastInDoclist||iNextOff==iPgIdx) ){
+      fts5PutU16(&aPg[0], 0);
+    }
  }

-  if( fts5GetU16(&aPg[0])==iStart && (bLastInDoclist||iNextOff==iPgIdx) ){
-    fts5PutU16(&aPg[0], 0);
-  }
-
-  if( bLastInDoclist==0 ){
+  if( pSeg->bDel ){
+    iOff += sqlite3Fts5PutVarint(&aPg[iOff], iDelta);
+    aPg[iOff++] = 0x01;
+  }else if( bLastInDoclist==0 ){
    if( iNextOff!=iPgIdx ){
      iNextOff += fts5GetVarint(&aPg[iNextOff], &iNextDelta);
      iOff += sqlite3Fts5PutVarint(&aPg[iOff], iDelta + iNextDelta);
@@ -4840,7 +4843,9 @@ static void fts5DoSecureDelete(
          iOff += sqlite3Fts5PutVarint(&aPg[iOff], nPrefix);
        }
        iOff += sqlite3Fts5PutVarint(&aPg[iOff], nSuffix);
-        if( nPrefix2>nPrefix ){
+        if( nPrefix2>pSeg->term.n ){
+          p->rc = FTS5_CORRUPT;
+        }else if( nPrefix2>nPrefix ){
          memcpy(&aPg[iOff], &pSeg->term.p[nPrefix], nPrefix2-nPrefix);
          iOff += (nPrefix2-nPrefix);
        }
@@ -4893,26 +4898,24 @@ static void fts5DoSecureDelete(
    }

    if( p->rc==SQLITE_OK ){
-      const int nMove = nPg - iNextOff;
-      int nShift = 0;
+      const int nMove = nPg - iNextOff;     /* Number of bytes to move */
+      int nShift = iNextOff - iOff;         /* Distance to move them */
+      int iPrevKeyOut = 0;
+      int iKeyIn = 0;

      memmove(&aPg[iOff], &aPg[iNextOff], nMove);
-      iPgIdx -= (iNextOff - iOff);
+      iPgIdx -= nShift;
      nPg = iPgIdx;
      fts5PutU16(&aPg[2], iPgIdx);

-      nShift = iNextOff - iOff;
-      for(iIdx=0, iKeyOff=0, iPrevKeyOff=0; iIdx<nIdx; /* no-op */){
+      for(iIdx=0; iIdx<nIdx; /* no-op */){
        u32 iVal = 0;
        iIdx += fts5GetVarint32(&aIdx[iIdx], iVal);
-        iKeyOff += iVal;
-        if( iKeyOff!=iDelKeyOff ){
-          if( iKeyOff>iOff ){
-            iKeyOff -= nShift;
-            nShift = 0;
-          }
-          nPg += sqlite3Fts5PutVarint(&aPg[nPg], iKeyOff - iPrevKeyOff);
-          iPrevKeyOff = iKeyOff;
+        iKeyIn += iVal;
+        if( iKeyIn!=iDelKeyOff ){
+          int iKeyOut = (iKeyIn - (iKeyIn>iOff ? nShift : 0));
+          nPg += sqlite3Fts5PutVarint(&aPg[nPg], iKeyOut - iPrevKeyOut);
+          iPrevKeyOut = iKeyOut;
        }
      }

@@ -5091,10 +5094,16 @@ static void fts5FlushOneHash(Fts5Index *p){
              fts5WriteFlushLeaf(p, &writer);
            }
          }else{
-            int bDummy;
-            int nPos;
-            int nCopy = fts5GetPoslistSize(&pDoclist[iOff], &nPos, &bDummy);
-            nCopy += nPos;
+            int bDel = 0;
+            int nPos = 0;
+            int nCopy = fts5GetPoslistSize(&pDoclist[iOff], &nPos, &bDel);
+            if( bDel && bSecureDelete ){
+              fts5BufferAppendVarint(&p->rc, pBuf, nPos*2);
+              iOff += nCopy;
+              nCopy = nPos;
+            }else{
+              nCopy += nPos;
+            }
            if( (pBuf->n + pPgidx->n + nCopy) <= pgsz ){
              /* The entire poslist will fit on the current leaf. So copy
              ** it in one go. */
@@ -96,4 +96,33 @@ set r 137438953475
  db close
 }

+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x);
+  BEGIN;
+    INSERT INTO t1 VALUES('abc');
+    INSERT INTO t1 VALUES('b d d d');
+  COMMIT;
+  INSERT INTO t1(t1, rank) VALUES('secure-delete', 1);
+}
+
+execsql_pp {
+  SELECT id, quote(block) FROM t1_data
+}
+
+do_execsql_test 2.1 {
+  SELECT quote(block) FROM t1_data WHERE id > 10;
+}        {X'0000001A04306162630102020101620202020101640206030303040806'}
+
+do_execsql_test 2.2 {
+  UPDATE t1_data SET 
+    block=X'0000001A04306162630102025501620202020101640206030303040806'
+  WHERE id>10
+}
+
+do_catchsql_test 2.3 {
+  DELETE FROM t1 WHERE rowid = 1
+} {1 {database disk image is malformed}}
+
 finish_test
@@ -273,6 +273,19 @@ do_execsql_test 5.3 {
 do_execsql_test 5.4 { SELECT rowid FROM t1('abc'); } 2
 do_execsql_test 5.5 { SELECT rowid FROM t1('aa'); } 2

+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 6.0 {
+  CREATE VIRTUAL TABLE fts USING fts5(content);
+  INSERT INTO fts(fts, rank) VALUES ('secure-delete', 1);
+  INSERT INTO fts(rowid, content) VALUES
+    (3407, 'profile profile profile profile profile profile profile profile pull pulling pulling really');
+  DELETE FROM fts WHERE rowid IS 3407;
+  INSERT INTO fts(fts) VALUES ('integrity-check');
+}
+
+

 finish_test

@@ -86,71 +86,76 @@ do_execsql_test 2.8 {
 # Tests with large/small rowid values.
 #

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

 #execsql_pp { SELECT rowid FROM fff('post') ORDER BY rowid ASC }
@@ -18,7 +18,7 @@ db progress 1 progress_handler
 set ::PHC 0
 proc progress_handler {args} {
  incr ::PHC
-  if {($::PHC % 100000)==0}  breakpoint
+  # if {($::PHC % 100000)==0}  breakpoint
  return 0
 }

@@ -50,6 +50,104 @@ do_test 1.3 {
  expr $phc(1)*5 < $phc(2)
 } {1}

+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x);
+  INSERT INTO t1(t1, rank) VALUES('secure-delete', $sd) 
+}
+
+do_execsql_test 2.1 {
+  BEGIN;
+    INSERT INTO t1(rowid, x) VALUES(-100000, 'abc def ghi');
+    INSERT INTO t1(rowid, x) VALUES(-99999, 'abc def ghi');
+    INSERT INTO t1(rowid, x) VALUES(9223372036854775800, 'abc def ghi');
+  COMMIT;
+}
+
+do_execsql_test 2.2 {
+  SELECT rowid FROM t1('def')
+} {-100000 -99999 9223372036854775800}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x);
+  INSERT INTO t1(t1, rank) VALUES('secure-delete', $sd) 
+}
+
+do_execsql_test 2.1 {
+  BEGIN;
+    INSERT INTO t1(rowid, x) 
+      VALUES(51869, 'when whenever where weress what turn'), 
+            (51871, 'to were');
+  COMMIT;
+}
+
+do_execsql_test 3.2 {
+  DELETE FROM t1 WHERE rowid=51871;
+  INSERT INTO t1(t1) VALUES('integrity-check');
+}
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x);
+  INSERT INTO t1(t1, rank) VALUES('secure-delete', $sd) 
+}
+
+do_execsql_test 2.1 {
+  BEGIN;
+    INSERT INTO t1(rowid, x) VALUES(-100000, 'abc def ghi');
+    INSERT INTO t1(rowid, x) VALUES(-99999, 'abc def ghi');
+    INSERT INTO t1(rowid, x) VALUES(9223372036854775800, 'abc def ghi');
+  COMMIT;
+}
+
+do_execsql_test 2.2 {
+  SELECT rowid FROM t1('def')
+} {-100000 -99999 9223372036854775800}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x);
+  INSERT INTO t1(t1, rank) VALUES('secure-delete', $sd) 
+}
+
+do_execsql_test 3.1 {
+  BEGIN;
+    INSERT INTO t1(rowid, x) 
+      VALUES(51869, 'when whenever where weress what turn'), 
+            (51871, 'to were');
+  COMMIT;
+}
+
+do_execsql_test 3.2 {
+  DELETE FROM t1 WHERE rowid=51871;
+  INSERT INTO t1(t1) VALUES('integrity-check');
+}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x);
+  INSERT INTO t1(rowid, x) VALUES(10, 'one two');
+}
+do_execsql_test 4.1 {
+  UPDATE t1 SET x = 'one three' WHERE rowid=10;
+  INSERT INTO t1(t1, rank) VALUES('secure-delete', 1);
+}
+do_execsql_test 4.2 {
+  DELETE FROM t1 WHERE rowid=10;
+}
+do_execsql_test 4.3 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+}

 finish_test

@@ -285,5 +285,187 @@ do_test 5.1 {
  list [catch { $R finish } msg] $msg
 } {0 {}}

+reset_db
+breakpoint
+do_test 7.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 4108 pagesize 4096 filename x1.db
+| page 1 offset 0
+|      0: 02 01 00 00 00 00 14 15 40 00 00 00 00 00 00 00   ........@.......
+|     16: 33 3a 6d 65 6d 6f 72 79 3a 02 02 02 02 02 02 02   3:memory:.......
+|     32: 02 02 02 02 02 02 12 02 02 02 63 6f 6c 6f 72 20   ..........color 
+|     48: 73 70 61 63 00 f3 a0 81 a1 00 00 a0 02 02 02 02   spac............
+|     64: 69 95 73 6f 36 00 ff 0d 00 97 8c 90 3f 0a 70 02   i.so6.......?.p.
+|     80: 02 02 02 02 02 02 02 02 02 02 02 02 02 01 00 00   ................
+|     96: 06 02 02 02 02 5f 02 02 02 2c 02 02 02 02 02 02   ....._...,......
+|    112: 02 02 02 02 02 02 02 02 02 12 02 02 02 63 6f 6c   .............col
+|    128: 6f 72 20 73 70 61 63 00 f3 a0 81 a1 00 00 a0 02   or spac.........
+|    144: 02 02 02 69 95 73 6f 36 00 ff 0d 00 97 8c 90 3f   ...i.so6.......?
+|    160: 0a 70 02 02 02 02 02 02 02 02 02 02 02 02 02 02   .p..............
+|    176: 01 00 00 06 02 02 02 02 5f 02 02 02 2c 02 02 00   ........_...,...
+|    192: 00 01 00 01 00 00 00 01 00 02 fe 00 00 03 00 01   ................
+|    208: 00 00 00 01 c5 04 00 00 00 01 00 01 00 00 00 01   ................
+|    224: 00 fa 02 00 00 00 03 00 01 00 00 00 81 00 04 00   ................
+|    240: 00 00 01 00 01 00 00 00 01 00 02 00 fe 00 03 00   ................
+|    256: 01 00 00 00 01 00 04 00 00 00 01 00 01 00 00 00   ................
+|    272: 01 00 02 00 00 00 03 00 01 00 00 00 01 00 04 00   ................
+|    288: 00 00 01 00 01 00 00 00 01 00 02 00 00 00 03 00   ................
+|    304: 01 00 00 00 01 00 04 00 00 00 01 00 01 00 00 00   ................
+|    320: 01 00 02 00 00 00 03 00 01 00 00 00 40 00 84 00   ............@...
+|    336: 84 00 84 00 01 00 00 00 09 00 06 00 f5 00 01 00   ................
+|    352: 08 01 03 00 03 00 62 00 62 00 23 00 01 00 62 00   ......b.b.#...b.
+|    368: 04 00 1e 00 62 00 62 00 62 00 01 00 00 00 0a 00   ....b.b.b.......
+|    384: 01 00 03 00 01 00 03 00 04 00 02 00 01 00 01 00   ................
+|    400: 08 00 01 00 31 c6 00 03 00 0c 00 12 00 18 00 02   ....1...........
+|    416: 00 05 00 08 00 02 00 06 00 08 00 02 00 07 00 08   ................
+|    432: 00 02 00 01 00 01 00 08 00 01 00 0c 00 03 00 16   ................
+|    448: 00 1c 00 22 00 01 00 03 00 05 00 06 00 07 00 02   ................
+|    464: 00 05 00 09 00 02 00 06 00 09 00 02 00 07 00 09   ................
+|    480: 00 00 00 00 01 00 05 00 00 00 01 00 01 00 00 00   ................
+|    496: 01 00 02 00 00 00 03 00 01 00 00 00 01 00 04 00   ................
+|    512: 00 00 01 00 01 00 00 00 01 00 02 00 00 00 03 00   ................
+|    528: 01 00 00 00 01 00 04 00 00 00 01 00 01 00 00 00   ................
+|    544: 01 00 02 00 00 f6 03 00 00 02 00 00 01 00 04 00   ................
+|    560: 00 00 01 00 01 00 00 00 01 00 02 00 00 00 03 00   ................
+|    576: 01 00 00 00 01 00 04 00 00 00 01 00 01 00 00 00   ................
+|    592: 01 00 02 00 00 00 03 00 01 00 00 00 01 00 04 00   ................
+|    608: 00 00 01 00 01 00 00 00 01 00 02 00 00 00 03 00   ................
+|    624: 01 00 00 00 01 00 04 00 00 00 01 00 01 00 00 00   ................
+|    640: 01 3d 02 00 00 00 03 00 06 00 00 00 01 00 01 00   .=..............
+|    656: 00 00 01 00 01 00 00 00 01 00 02 00 00 00 03 00   ................
+|    672: 01 00 00 00 01 00 04 00 00 00 01 00 01 00 00 00   ................
+|    688: 01 00 02 00 00 00 55 52 4c 52 65 71 75 65 73 74   ......URLRequest
+|    704: 43 6f 6e 00 00 00 01 01 0e d4 00 04 00 00 00 01   Con.............
+|    720: 0e f8 00 04 00 00 00 01 0f 1c 00 04 00 00 00 01   ................
+|    736: 0f 00 00 01 00 00 00 01 0f 86 00 01 00 00 00 01   ................
+|    752: 0f 84 00 01 00 00 00 01 00 00 01 0f c0 00 01 00   ................
+|    768: 00 00 01 0f e8 00 d6 0f 00 01 6f 00 02 0f d6 00   ..........o.....
+|    784: 02 34 03 03 03 00 01 00 00 00 01 00 05 00 00 00   .4..............
+|    800: 01 00 01 00 00 00 01 00 02 00 00 00 03 00 01 00   ................
+|    816: 00 00 01 00 04 00 00 00 01 00 01 00 00 00 01 00   ................
+|    832: 02 00 00 00 03 00 01 00 10 00 01 00 04 00 00 00   ................
+|    848: 01 00 01 00 00 00 01 00 02 00 00 00 03 00 00 02   ................
+|    864: 00 00 01 40 04 00 00 03 01 00 01 00 00 00 01 00   ...@............
+|    880: 02 00 00 00 03 00 01 00 00 00 00 00 01 0e f8 00   ................
+|    896: 04 77 4f 46 32 73 40 23 70 00 00 00 70 00 1f 00   .wOF2s@#p...p...
+|    912: 00 00 d8 00 00 00 ff ff 00 00 00 00 43 00 00 00   ............C...
+|    928: 00 00 ff ff ff ff ff 00 00 a8 00 00 0c 00 00 00   ................
+|   1024: 00 00 00 00 00 00 00 00 00 00 10 22 00 22 0f 00   ................
+|   1040: 00 00 00 00 00 00 10 22 00 00 70 00 1f 00 00 0f   ..........p.....
+|   1056: d8 00 00 00 00 00 00 00 00 00 03 00 00 00 00 00   ................
+|   1072: 00 01 00 00 00 3f 23 70 00 00 00 01 0f 1c 00 04   .....?#p........
+|   1088: 00 00 00 01 0f 40 00 01 00 00 00 01 0f 86 00 01   .....@..........
+|   1104: 00 00 00 01 0f 84 00 01 00 00 00 01 00 00 01 0f   ................
+|   1120: c0 00 01 00 00 00 01 0f e8 00 01 0f d6 00 6f 00   ..............o.
+|   1136: 02 0f d6 00 03 02 31 03 2b 03 2a f2 00 0f d4 00   ......1.+.*.....
+|   1152: 01 00 08 00 01 00 04 03 2b 00 02 02 32 00 01 0f   ........+...2...
+|   1168: c8 01 15 00 02 20 c8 00 02 12 ad 02 00 24 06 c0   ..... .......$..
+|   1184: 00 00 00 03 00 00 01 24 00 2a 06 e4 00 00 00 03   .......$.*......
+|   1200: 00 00 01 25 00 38 07 0e 00 00 00 03 00 00 01 26   ...%.8.........&
+|   1216: 00 34 07 46 00 00 00 03 00 00 01 27 00 1c 07 7a   .4.F.......'...z
+|   1232: 00 00 00 03 00 00 01 28 00 2a 07 96 00 00 00 03   .......(.*......
+|   1248: 00 e5 01 29 00 34 07 c0 00 00 00 03 00 00 01 2a   ...).4.........*
+|   1264: 67 34 07 f4 00 00 00 03 00 00 01 2b 00 22 08 28   g4.........+...(
+|   1280: 00 00 00 00 01 00 01 00 00 00 01 00 02 00 00 00   ................
+|   1296: 03 00 01 00 00 00 01 00 00 00 01 00 00 00 01 00   ................
+|   1312: 01 00 00 00 01 00 02 00 00 00 03 00 00 02 00 00   ................
+|   1328: 01 00 04 00 00 00 01 00 01 00 00 00 01 00 02 00   ................
+|   1344: 00 00 03 00 01 00 00 00 01 00 04 00 00 00 01 00   ................
+|   1360: 01 00 00 00 01 00 02 00 00 00 03 00 01 00 00 21   ...............!
+|   1376: 04 00 01 00 00 00 00 00 01 00 00 00 01 00 02 00   ................
+|   1392: 00 00 03 00 01 00 00 00 01 00 04 00 00 00 01 00   ................
+|   1408: 01 00 00 00 01 00 02 00 00 00 03 00 01 00 00 00   ................
+|   1424: 01 00 05 00 00 00 01 00 01 00 00 01 00 02 02 02   ................
+|   1440: 12 02 02 02 63 6f 6c 6f 72 20 73 70 61 63 00 f3   ....color spac..
+|   1456: a0 81 a1 00 00 a0 02 02 02 02 69 95 73 6f 36 00   ..........i.so6.
+|   1472: ff 0d 00 97 8c 90 3f 0a 70 02 02 02 02 02 02 02   ......?.p.......
+|   1488: 02 02 02 02 02 02 02 01 00 00 06 02 02 02 02 5f   ..............._
+|   1504: 02 02 02 2c 02 02 00 00 01 00 01 00 00 00 01 00   ...,............
+|   1520: 02 fe 00 00 03 00 01 00 00 00 01 c5 04 00 00 00   ................
+|   1536: 01 00 01 00 00 00 01 00 02 00 00 00 03 00 01 00   ................
+|   1552: 00 00 81 00 04 00 00 00 01 00 01 00 00 00 01 00   ................
+|   1568: 02 00 fe 00 03 00 01 00 00 00 01 00 04 00 00 00   ................
+|   1584: 01 00 01 00 00 00 01 00 02 00 00 00 03 00 01 00   ................
+|   1600: 00 00 01 00 04 00 00 00 01 00 01 00 00 00 01 00   ................
+|   1616: 02 00 00 00 03 00 01 00 00 00 01 00 04 00 00 00   ................
+|   1632: 01 00 01 00 00 00 01 00 02 00 00 00 03 00 01 00   ................
+|   1648: 00 00 40 00 84 00 84 00 84 00 01 00 00 00 09 00   ..@.............
+|   1664: 06 00 f5 00 01 00 08 01 03 15 15 15 15 15 15 15   ................
+|   1680: 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15   ................
+|   1696: 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15   ................
+|   1712: 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15   ................
+|   1728: 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15   ................
+|   1744: 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15   ................
+|   1760: 15 15 15 15 15 15 15 15 15 15 15 00 03 00 62 00   ..............b.
+|   1776: 62 00 23 00 01 00 62 00 04 00 1e 00 62 00 62 00   b.#...b.....b.b.
+|   1792: 62 00 01 00 00 00 0a 00 01 00 03 00 01 00 03 00   b...............
+|   1808: 04 00 02 00 01 00 01 00 08 00 01 00 31 c6 00 03   ............1...
+|   1824: 00 0c 00 12 00 18 00 02 00 05 00 08 00 02 00 06   ................
+|   1840: 00 08 00 02 00 07 00 08 00 02 00 01 00 01 00 08   ................
+|   1856: 00 01 00 0c 00 03 00 16 00 1c 00 22 00 01 00 03   ................
+|   1872: 00 05 00 06 00 07 00 02 00 05 00 09 00 02 00 06   ................
+|   1888: 00 09 00 02 00 07 00 09 00 00 00 00 01 00 05 00   ................
+|   1904: 00 00 01 00 01 00 00 00 01 00 02 00 00 00 03 00   ................
+|   1920: 01 00 00 00 01 00 04 00 00 00 01 00 01 00 00 00   ................
+|   1936: 01 00 02 00 00 00 03 00 01 00 00 00 01 00 04 00   ................
+|   1952: 00 00 01 0f d6 00 02 34 03 03 03 00 01 00 00 00   .......4........
+|   1968: 01 00 05 00 00 00 01 00 01 00 00 00 01 00 02 00   ................
+|   1984: 00 00 03 00 01 00 00 00 01 00 04 00 00 00 01 00   ................
+|   2000: 01 00 00 00 01 00 02 fc 42 dc 19 5c 74 23 18 cd   ........B...t#..
+|   2016: b3 a5 a8 7a 90 40 1d 66 12 5d e5 4f 85 00 68 f4   ...z.@.f.].O..h.
+|   2032: 05 98 86 25 24 dd bc c2 f6 f6 4e a3 e2 61 d2 c6   ...%$.....N..a..
+|   2048: aa c1 56 50 d4 80 82 35 f1 e2 59 41 50 a6 da 51   ..VP...5..YAP..Q
+|   2064: d4 62 9c 19 94 58 aa 31 30 8a 22 c2 5f 33 2b c9   .b...X.10..._3+.
+|   2080: b6 e6 b4 11 4e 51 82 c4 d8 b6 d8 b4 06 04 fb 68   ....NQ.........h
+|   2096: f4 d2 6f e7 cb 8a a8 82 d5 74 00 00 00 00 00 00   ..o......t......
+|   2368: 00 00 00 00 00 00 00 00 00 08 00 00 00 00 00 00   ................
+|   2432: 00 00 00 00 00 03 00 01 00 10 00 01 00 04 00 00   ................
+|   2448: 00 01 00 01 00 00 00 01 00 02 00 00 00 03 00 00   ................
+|   2464: 02 00 00 01 40 04 00 00 03 01 00 01 00 00 00 01   ....@...........
+|   2480: 00 02 00 00 00 03 00 01 00 00 00 00 00 01 0e f8   ................
+|   2496: 00 04 77 4f 46 32 73 40 23 70 00 00 00 70 00 1f   ..wOF2s@#p...p..
+|   2512: 00 00 00 d8 00 00 00 ff ff 00 00 00 00 43 00 00   .............C..
+|   2528: 00 00 00 ff ff ff ff ff 00 00 a8 00 00 0c 00 00   ................
+|   2624: 00 00 00 00 00 00 00 00 00 00 00 10 22 00 22 0f   ................
+|   2640: 00 00 00 00 00 00 00 10 22 00 00 70 00 1f 00 00   ...........p....
+|   2656: 0f d8 00 00 00 00 00 00 00 00 00 03 00 00 00 00   ................
+|   2672: 00 00 01 00 00 00 3f 23 70 00 00 00 01 0f 1c 00   ......?#p.......
+|   2688: 04 00 00 00 01 0f 40 00 01 00 00 00 01 0f 86 00   ......@.........
+|   2704: 01 00 00 00 01 0f 84 00 01 00 00 00 01 00 00 01   ................
+|   2720: 0f c0 00 01 00 00 00 01 0f e8 00 01 0f d6 00 6f   ...............o
+|   2736: 00 02 0f d6 00 03 02 31 03 2b 03 2a f2 00 0f d4   .......1.+.*....
+|   2752: 00 01 00 08 00 01 00 04 03 2b 00 02 02 32 00 01   .........+...2..
+|   2768: 0f c8 01 15 00 02 20 c8 00 02 12 ad 02 00 24 06   ...... .......$.
+|   2784: c0 00 00 5a 03 00 00 01 24 00 2a 06 e4 00 00 00   ...Z....$.*.....
+|   2800: 03 00 00 01 25 00 38 07 0e 00 00 00 03 00 00 01   ....%.8.........
+|   2816: 26 00 34 07 46 00 00 00 03 00 00 01 27 00 1c 07   &.4.F.......'...
+|   2832: 7a 00 00 00 03 00 00 01 28 00 2a 07 96 00 00 00   z.......(.*.....
+|   2848: 03 00 e5 01 29 00 34 07 c0 00 00 00 03 00 00 01   ....).4.........
+|   2864: 2a 67 34 07 f4 00 00 00 03 00 00 01 2b 00 22 08   *g4.........+...
+|   2880: 28 00 00 00 00 01 00 01 00 00 00 01 00 02 00 00   (...............
+|   2896: 00 03 00 01 00 00 00 01 00 00 00 01 00 00 00 01   ................
+|   2912: 00 01 00 00 00 01 00 02 00 00 00 03 00 00 02 00   ................
+|   2928: 00 01 00 04 00 00 00 01 00 01 00 00 00 00 00 00   ................
+|   2992: 00 48 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .H..............
+|   3504: 00 00 00 00 00 00 00 00 00 00 00 97 00 00 00 00   ................
+|   3904: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 09   ................
+|   3920: 03 fe 00 00 01 36 00 3c 0a 38 00 00 00 03 00 00   .....6.<.8......
+|   3936: 01 37 00 20 0a 74 00 00 00 fb ff ff 00 38 00 2a   .7. .t.......8.*
+|   3952: 0a 94 00 00 00 03 00 00 01 39 4f 54 54 4f 00 0e   .........9OTTO..
+|   3968: 00 80 00 03 00 60 43 46 46 20 e3 ae 89 2a 00 00   .....`CFF ...*..
+|   3984: 02 b0 00 00 02 76 42 50 4f 53 00 15 00 0a 00 00   .....vBPOS......
+|   4000: 05 28 00 00 00 0c 54 53 55 42 c9 70 c3 06 00 00   .(....TSUB.p....
+|   4016: 05 34 1f 00 40 00 48 00 00 00 00 00 00 00 00 00   .4..@.H.........
+|   4064: 00 00 00 00 00 08 00 01 00 01 00 01 00 01 00 06   ................
+|   4080: 00 02 00 08 00 01 00 01 00 01 00 01 00 00 00 00   ................
+| end x1.db
+}]} {}
+do_test 7.1 {
+  set R [sqlite3_recover_init db main test.db2]
+  catch { $R run }
+  list [catch { $R finish } msg] $msg
+} {1 {file is not a database}}
+
 finish_test

@@ -2103,7 +2103,7 @@ static int recoverIsValidPage(u8 *aTmp, const u8 *a, int n){
    if( iFree>(n-4) ) return 0;
    iNext = recoverGetU16(&a[iFree]);
    nByte = recoverGetU16(&a[iFree+2]);
-    if( iFree+nByte>n ) return 0;
+    if( iFree+nByte>n || nByte<4 ) return 0;
    if( iNext && iNext<iFree+nByte ) return 0;
    memset(&aUsed[iFree], 0xFF, nByte);
    iFree = iNext;
@@ -3235,15 +3235,19 @@ static int sessionReadRecord(
        }
      }
      if( eType==SQLITE_INTEGER || eType==SQLITE_FLOAT ){
-        sqlite3_int64 v = sessionGetI64(aVal);
-        if( eType==SQLITE_INTEGER ){
-          sqlite3VdbeMemSetInt64(apOut[i], v);
+        if( (pIn->nData-pIn->iNext)<8 ){
+          rc = SQLITE_CORRUPT_BKPT;
        }else{
-          double d;
-          memcpy(&d, &v, 8);
-          sqlite3VdbeMemSetDouble(apOut[i], d);
+          sqlite3_int64 v = sessionGetI64(aVal);
+          if( eType==SQLITE_INTEGER ){
+            sqlite3VdbeMemSetInt64(apOut[i], v);
+          }else{
+            double d;
+            memcpy(&d, &v, 8);
+            sqlite3VdbeMemSetDouble(apOut[i], d);
+          }
+          pIn->iNext += 8;
        }
-        pIn->iNext += 8;
      }
    }
  }
@@ -55,6 +55,7 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
    if(sqliteResultCode){
      if(dbPtr instanceof DB) dbPtr = dbPtr.pointer;
      toss3(
+        sqliteResultCode,
        "sqlite3 result code",sqliteResultCode+":",
        (dbPtr
         ? capi.sqlite3_errmsg(dbPtr)
@@ -330,10 +331,15 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){

     - `db`: the DB object which created the statement.

-     - `columnCount`: the number of result columns in the query, or 0 for
-     queries which cannot return results.
+     - `columnCount`: the number of result columns in the query, or 0
+     for queries which cannot return results. This property is a proxy
+     for sqlite3_column_count() and its use in loops should be avoided
+     because of the call overhead associated with that. The
+     `columnCount` is not cached when the Stmt is created because a
+     schema change made via a separate db connection between this
+     statement's preparation and when it is stepped may invalidate it.

-     - `parameterCount`: the number of bindable paramters in the query.
+     - `parameterCount`: the number of bindable parameters in the query.
  */
  const Stmt = function(){
    if(BindTypes!==arguments[2]){
@@ -341,7 +347,6 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
    }
    this.db = arguments[0];
    __ptrMap.set(this, arguments[1]);
-    this.columnCount = capi.sqlite3_column_count(this.pointer);
    this.parameterCount = capi.sqlite3_bind_parameter_count(this.pointer);
  };

@@ -473,7 +478,9 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
  const __selectFirstRow = (db, sql, bind, ...getArgs)=>{
    const stmt = db.prepare(sql);
    try {
-      return stmt.bind(bind).step() ? stmt.get(...getArgs) : undefined;
+      const rc = stmt.bind(bind).step() ? stmt.get(...getArgs) : undefined;
+      stmt.reset(/*for INSERT...RETURNING locking case*/);
+      return rc;
    }finally{
      stmt.finalize();
    }
@@ -499,6 +506,9 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
     "Not an error."  The various non-0 non-error codes need to be
     checked for in client code where they are expected.

+     The thrown exception's `resultCode` property will be the value of
+     the second argument to this function.
+
     If it does not throw, it returns its first argument.
  */
  DB.checkRc = (db,resultCode)=>checkSqlite3Rc(db,resultCode);
@@ -546,7 +556,10 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
        }
        const pDb = this.pointer;
        Object.keys(__stmtMap.get(this)).forEach((k,s)=>{
-          if(s && s.pointer) s.finalize();
+          if(s && s.pointer){
+            try{s.finalize()}
+            catch(e){/*ignore*/}
+          }
        });
        __ptrMap.delete(this);
        __stmtMap.delete(this);
@@ -701,18 +714,18 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
       with identical names.

       - `callback` = a function which gets called for each row of the
-       result set, but only if that statement has any result
-       _rows_. The callback's "this" is the options object, noting
-       that this function synthesizes one if the caller does not pass
-       one to exec(). The second argument passed to the callback is
-       always the current Stmt object, as it's needed if the caller
-       wants to fetch the column names or some such (noting that they
-       could also be fetched via `this.columnNames`, if the client
-       provides the `columnNames` option). If the callback returns a
-       literal `false` (as opposed to any other falsy value, e.g.  an
-       implicit `undefined` return), any ongoing statement-`step()`
-       iteration stops without an error. The return value of the
-       callback is otherwise ignored.
+       result set, but only if that statement has any result rows. The
+       callback's "this" is the options object, noting that this
+       function synthesizes one if the caller does not pass one to
+       exec(). The second argument passed to the callback is always
+       the current Stmt object, as it's needed if the caller wants to
+       fetch the column names or some such (noting that they could
+       also be fetched via `this.columnNames`, if the client provides
+       the `columnNames` option). If the callback returns a literal
+       `false` (as opposed to any other falsy value, e.g. an implicit
+       `undefined` return), any ongoing statement-`step()` iteration
+       stops without an error. The return value of the callback is
+       otherwise ignored.

       ACHTUNG: The callback MUST NOT modify the Stmt object. Calling
       any of the Stmt.get() variants, Stmt.getColumnName(), or
@@ -733,7 +746,7 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){

         A.1) `'array'` (the default) causes the results of
         `stmt.get([])` to be passed to the `callback` and/or appended
-         to `resultRows`
+         to `resultRows`.

         A.2) `'object'` causes the results of
         `stmt.get(Object.create(null))` to be passed to the
@@ -744,8 +757,8 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){

         A.3) `'stmt'` causes the current Stmt to be passed to the
         callback, but this mode will trigger an exception if
-         `resultRows` is an array because appending the statement to
-         the array would be downright unhelpful.
+         `resultRows` is an array because appending the transient
+         statement to the array would be downright unhelpful.

       B) An integer, indicating a zero-based column in the result
       row. Only that one single value will be passed on.
@@ -775,7 +788,7 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
       should return:

         A) The default value is (usually) `"this"`, meaning that the
-            DB object itself should be returned. The exceptions is if
+            DB object itself should be returned. The exception is if
            the caller passes neither of `callback` nor `returnValue`
            but does pass an explicit `rowMode` then the default
            `returnValue` is `"resultRows"`, described below.
@@ -857,38 +870,53 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
            bind = null;
          }
          if(evalFirstResult && stmt.columnCount){
-            /* Only forward SELECT results for the FIRST query
+            /* Only forward SELECT-style results for the FIRST query
               in the SQL which potentially has them. */
+            let gotColNames = Array.isArray(
+              opt.columnNames
+              /* As reported in
+                 https://sqlite.org/forum/forumpost/7774b773937cbe0a
+                 we need to delay fetching of the column names until
+                 after the first step() (if we step() at all) because
+                 a schema change between the prepare() and step(), via
+                 another connection, may invalidate the column count
+                 and names. */) ? 0 : 1;
            evalFirstResult = false;
-            if(Array.isArray(opt.columnNames)){
-              stmt.getColumnNames(opt.columnNames);
-            }
            if(arg.cbArg || resultRows){
-              for(; stmt.step(); stmt._isLocked = false){
-                stmt._isLocked = true;
+              for(; stmt.step(); stmt._lockedByExec = false){
+                if(0===gotColNames++) stmt.getColumnNames(opt.columnNames);
+                stmt._lockedByExec = true;
                const row = arg.cbArg(stmt);
                if(resultRows) resultRows.push(row);
                if(callback && false === callback.call(opt, row, stmt)){
                  break;
                }
              }
-              stmt._isLocked = false;
+              stmt._lockedByExec = false;
+            }
+            if(0===gotColNames){
+              /* opt.columnNames was provided but we visited no result rows */
+              stmt.getColumnNames(opt.columnNames);
            }
          }else{
            stmt.step();
          }
-          stmt.finalize();
+          stmt.reset(
+            /* In order to trigger an exception in the
+               INSERT...RETURNING locking scenario:
+               https://sqlite.org/forum/forumpost/36f7a2e7494897df
+            */).finalize();
          stmt = null;
-        }
+        }/*prepare() loop*/
      }/*catch(e){
        sqlite3.config.warn("DB.exec() is propagating exception",opt,e);
        throw e;
      }*/finally{
+        wasm.scopedAllocPop(stack);
        if(stmt){
-          delete stmt._isLocked;
+          delete stmt._lockedByExec;
          stmt.finalize();
        }
-        wasm.scopedAllocPop(stack);
      }
      return arg.returnVal();
    }/*exec()*/,
@@ -1107,6 +1135,7 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
      try {
        stmt.bind(bind);
        while(stmt.step()) rc.push(stmt.get(0,asType));
+        stmt.reset(/*for INSERT...RETURNING locking case*/);
      }finally{
        stmt.finalize();
      }
@@ -1241,7 +1270,7 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
       not throw, it returns this object.
    */
    checkRc: function(resultCode){
-      return DB.checkRc(this, resultCode);
+      return checkSqlite3Rc(this, resultCode);
    }
  }/*DB.prototype*/;

@@ -1302,15 +1331,15 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
  };

  /**
-     If stmt._isLocked is truthy, this throws an exception
+     If stmt._lockedByExec is truthy, this throws an exception
     complaining that the 2nd argument (an operation name,
     e.g. "bind()") is not legal while the statement is "locked".
     Locking happens before an exec()-like callback is passed a
     statement, to ensure that the callback does not mutate or
     finalize the statement. If it does not throw, it returns stmt.
  */
-  const affirmUnlocked = function(stmt,currentOpName){
-    if(stmt._isLocked){
+  const affirmNotLockedByExec = function(stmt,currentOpName){
+    if(stmt._lockedByExec){
      toss3("Operation is illegal when statement is locked:",currentOpName);
    }
    return stmt;
@@ -1323,14 +1352,11 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
     success.
  */
  const bindOne = function f(stmt,ndx,bindType,val){
-    affirmUnlocked(affirmStmtOpen(stmt), 'bind()');
+    affirmNotLockedByExec(affirmStmtOpen(stmt), 'bind()');
    if(!f._){
      f._tooBigInt = (v)=>toss3(
        "BigInt value is too big to store without precision loss:", v
      );
-      /* Reminder: when not in BigInt mode, it's impossible for
-         JS to represent a number out of the range we can bind,
-         so we have no range checking. */
      f._ = {
        string: function(stmt, ndx, val, asBlob){
          const [pStr, n] = wasm.allocCString(val, true);
@@ -1404,46 +1430,67 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){

  Stmt.prototype = {
    /**
-       "Finalizes" this statement. This is a no-op if the
-       statement has already been finalizes. Returns
-       undefined. Most methods in this class will throw if called
-       after this is.
+       "Finalizes" this statement. This is a no-op if the statement
+       has already been finalized. Returns the result of
+       sqlite3_finalize() (0 on success, non-0 on error), or the
+       undefined value if the statement has already been
+       finalized. Regardless of success or failure, most methods in
+       this class will throw if called after this is.
+
+       This method always throws if called when it is illegal to do
+       so. Namely, when triggered via a per-row callback handler of a
+       DB.exec() call.
    */
    finalize: function(){
      if(this.pointer){
-        affirmUnlocked(this,'finalize()');
+        affirmNotLockedByExec(this,'finalize()');
+        const rc = capi.sqlite3_finalize(this.pointer);
        delete __stmtMap.get(this.db)[this.pointer];
-        capi.sqlite3_finalize(this.pointer);
        __ptrMap.delete(this);
        delete this._mayGet;
-        delete this.columnCount;
        delete this.parameterCount;
+        delete this._lockedByExec;
        delete this.db;
-        delete this._isLocked;
+        return rc;
      }
    },
-    /** Clears all bound values. Returns this object.
-        Throws if this statement has been finalized. */
+    /**
+       Clears all bound values. Returns this object.  Throws if this
+       statement has been finalized or if modification of the
+       statement is currently illegal (e.g. in the per-row callback of
+       a DB.exec() call).
+    */
    clearBindings: function(){
-      affirmUnlocked(affirmStmtOpen(this), 'clearBindings()')
+      affirmNotLockedByExec(affirmStmtOpen(this), 'clearBindings()')
      capi.sqlite3_clear_bindings(this.pointer);
      this._mayGet = false;
      return this;
    },
    /**
-       Resets this statement so that it may be step()ed again
-       from the beginning. Returns this object. Throws if this
-       statement has been finalized.
+       Resets this statement so that it may be step()ed again from the
+       beginning. Returns this object. Throws if this statement has
+       been finalized, if it may not legally be reset because it is
+       currently being used from a DB.exec() callback, or if the
+       underlying call to sqlite3_reset() returns non-0.

       If passed a truthy argument then this.clearBindings() is
       also called, otherwise any existing bindings, along with
       any memory allocated for them, are retained.
+
+       In verions 3.42.0 and earlier, this function did not throw if
+       sqlite3_reset() returns non-0, but it was discovered that
+       throwing (or significant extra client-side code) is necessary
+       in order to avoid certain silent failure scenarios, as
+       discussed at:
+
+       https://sqlite.org/forum/forumpost/36f7a2e7494897df
    */
    reset: function(alsoClearBinds){
-      affirmUnlocked(this,'reset()');
+      affirmNotLockedByExec(this,'reset()');
      if(alsoClearBinds) this.clearBindings();
-      capi.sqlite3_reset(affirmStmtOpen(this).pointer);
+      const rc = capi.sqlite3_reset(affirmStmtOpen(this).pointer);
      this._mayGet = false;
+      checkSqlite3Rc(this.db, rc);
      return this;
    },
    /**
@@ -1592,7 +1639,7 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
       value is returned.  Throws on error.
    */
    step: function(){
-      affirmUnlocked(this, 'step()');
+      affirmNotLockedByExec(this, 'step()');
      const rc = capi.sqlite3_step(affirmStmtOpen(this).pointer);
      switch(rc){
          case capi.SQLITE_DONE: return this._mayGet = false;
@@ -1627,11 +1674,9 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
      return this.reset();
    },
    /**
-       Functions like step() except that it finalizes this statement
-       immediately after stepping unless the step cannot be performed
-       because the statement is locked. Throws on error, but any error
-       other than the statement-is-locked case will also trigger
-       finalization of this statement.
+       Functions like step() except that it calls finalize() on this
+       statement immediately after stepping, even if the step() call
+       throws.

       On success, it returns true if the step indicated that a row of
       data was available, else it returns false.
@@ -1643,9 +1688,14 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
       ```
    */
    stepFinalize: function(){
-      const rc = this.step();
-      this.finalize();
-      return rc;
+      try{
+        const rc = this.step();
+        this.reset(/*for INSERT...RETURNING locking case*/);
+        return rc;
+      }finally{
+        try{this.finalize()}
+        catch(e){/*ignored*/}
+      }
    },
    /**
       Fetches the value from the given 0-based column index of
@@ -1686,13 +1736,15 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
      }
      if(Array.isArray(ndx)){
        let i = 0;
-        while(i<this.columnCount){
+        const n = this.columnCount;
+        while(i<n){
          ndx[i] = this.get(i++);
        }
        return ndx;
      }else if(ndx && 'object'===typeof ndx){
        let i = 0;
-        while(i<this.columnCount){
+        const n = this.columnCount;
+        while(i<n){
          ndx[capi.sqlite3_column_name(this.pointer,i)] = this.get(i++);
        }
        return ndx;
@@ -1790,16 +1842,17 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
      );
    },
    /**
-       If this statement potentially has result columns, this
-       function returns an array of all such names. If passed an
-       array, it is used as the target and all names are appended
-       to it. Returns the target array. Throws if this statement
-       cannot have result columns. This object's columnCount member
-       holds the number of columns.
+       If this statement potentially has result columns, this function
+       returns an array of all such names. If passed an array, it is
+       used as the target and all names are appended to it. Returns
+       the target array. Throws if this statement cannot have result
+       columns. This object's columnCount property holds the number of
+       columns.
    */
    getColumnNames: function(tgt=[]){
      affirmColIndex(affirmStmtOpen(this),0);
-      for(let i = 0; i < this.columnCount; ++i){
+      const n = this.columnCount;
+      for(let i = 0; i < n; ++i){
        tgt.push(capi.sqlite3_column_name(this.pointer, i));
      }
      return tgt;
@@ -1826,6 +1879,20 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
    Object.defineProperty(Stmt.prototype, 'pointer', prop);
    Object.defineProperty(DB.prototype, 'pointer', prop);
  }
+  /**
+     Stmt.columnCount is an interceptor for sqlite3_column_count().
+
+     This requires an unfortunate performance hit compared to caching
+     columnCount when the Stmt is created/prepared (as was done in
+     SQLite <=3.42.0), but is necessary in order to handle certain
+     corner cases, as described in
+     https://sqlite.org/forum/forumpost/7774b773937cbe0a.
+  */
+  Object.defineProperty(Stmt.prototype, 'columnCount', {
+    enumerable: false,
+    get: function(){return capi.sqlite3_column_count(this.pointer)},
+    set: ()=>toss3("The columnCount property is read-only.")
+  });

  /** The OO API's public namespace. */
  sqlite3.oo1 = {
@@ -156,7 +156,6 @@
    }
  };

-  
  /**
     This is a module object for use with the emscripten-installed
     sqlite3InitModule() factory function.
@@ -174,7 +174,7 @@
 globalThis.WhWasmUtilInstaller = function(target){
  'use strict';
  if(undefined===target.bigIntEnabled){
-    target.bigIntEnabled = !!self['BigInt64Array'];
+    target.bigIntEnabled = !!globalThis['BigInt64Array'];
  }

  /** Throws a new Error, the message of which is the concatenation of
@@ -355,8 +355,8 @@ globalThis.WhWasmUtilInstaller = function(target){
          break;
        default:
          if(target.bigIntEnabled){
-            if(n===self['BigUint64Array']) return c.HEAP64U;
-            else if(n===self['BigInt64Array']) return c.HEAP64;
+            if(n===globalThis['BigUint64Array']) return c.HEAP64U;
+            else if(n===globalThis['BigInt64Array']) return c.HEAP64;
            break;
          }
    }
@@ -60,9 +60,9 @@ globalThis.Jaccwabyt = function StructBinderFactory(config){
        memberPrefix = (config.memberPrefix || ""),
        memberSuffix = (config.memberSuffix || ""),
        bigIntEnabled = (undefined===config.bigIntEnabled
-                         ? !!self['BigInt64Array'] : !!config.bigIntEnabled),
-        BigInt = self['BigInt'],
-        BigInt64Array = self['BigInt64Array'],
+                         ? !!globalThis['BigInt64Array'] : !!config.bigIntEnabled),
+        BigInt = globalThis['BigInt'],
+        BigInt64Array = globalThis['BigInt64Array'],
        /* Undocumented (on purpose) config options: */
        ptrSizeof = config.ptrSizeof || 4,
        ptrIR = config.ptrIR || 'i32'
@@ -45,7 +45,7 @@
      if(urlParams.has('esm')){
          logHtml('warning',"Attempting to run an ES6 Worker Module, "+
                  "which is not supported by all browsers! "+
-                  "e.g. Firefox (as of 2022-12) cannot do this.");
+                  "e.g. Firefox (as of 2023-05) cannot do this.");
        workerArgs.push("tester1.mjs",{type:"module"});
        document.querySelectorAll('title,#color-target').forEach((e)=>{
          e.innerText = "sqlite3 tester #1: ES6 Worker Module";
@@ -1166,7 +1166,8 @@ self.sqlite3InitModule = sqlite3InitModule;
      try{db.checkRc(rc)}
      catch(e){ex = e}
      T.assert(ex instanceof sqlite3.SQLite3Error)
-        .assert(0===ex.message.indexOf("sqlite3 result code"))
+        .assert(capi.SQLITE_MISUSE===ex.resultCode)
+        .assert(0===ex.message.indexOf("SQLITE_MISUSE: sqlite3 result code"))
        .assert(ex.message.indexOf("Invalid SQL")>0);
      T.assert(db === db.checkRc(0))
        .assert(db === sqlite3.oo1.DB.checkRc(db,0))
@@ -1219,6 +1220,7 @@ self.sqlite3InitModule = sqlite3InitModule;
      );
      //debug("statement =",st);
      this.progressHandlerCount = 0;
+      let rc;
      try {
        T.assert(wasm.isPtr(st.pointer))
          .mustThrowMatching(()=>st.pointer=1, /read-only/)
@@ -1229,6 +1231,8 @@ self.sqlite3InitModule = sqlite3InitModule;
            ) === 0)
          .assert(!st._mayGet)
          .assert('a' === st.getColumnName(0))
+          .mustThrowMatching(()=>st.columnCount=2,
+                             /columnCount property is read-only/)
          .assert(1===st.columnCount)
          .assert(0===st.parameterCount)
          .mustThrow(()=>st.bind(1,null))
@@ -1264,10 +1268,11 @@ self.sqlite3InitModule = sqlite3InitModule;
          assert(0===capi.sqlite3_strlike("%.txt", "foo.txt", 0)).
          assert(0!==capi.sqlite3_strlike("%.txt", "foo.xtx", 0));
      }finally{
-        st.finalize();
+        rc = st.finalize();
      }
      T.assert(!st.pointer)
-        .assert(0===this.db.openStatementCount());
+        .assert(0===this.db.openStatementCount())
+        .assert(0===rc);

      T.mustThrowMatching(()=>new sqlite3.oo1.Stmt("hi"), function(err){
        return (err instanceof sqlite3.SQLite3Error)
@@ -1332,8 +1337,8 @@ self.sqlite3InitModule = sqlite3InitModule;
        sql:['CREATE TABLE t(a,b);',
             // ^^^ using TEMP TABLE breaks the db export test
             "INSERT INTO t(a,b) VALUES(1,2),(3,4),",
-             "(?,?),('blob',X'6869')"/*intentionally missing semicolon to test for
-                                       off-by-one bug in string-to-WASM conversion*/],
+             "(?,?)"/*intentionally missing semicolon to test for
+                      off-by-one bug in string-to-WASM conversion*/],
        saveSql: list,
        bind: [5,6]
      });
@@ -1341,12 +1346,20 @@ self.sqlite3InitModule = sqlite3InitModule;
      T.assert(rc === db)
        .assert(2 === list.length)
        .assert('string'===typeof list[1])
-        .assert(4===db.changes())
+        .assert(3===db.changes())
        .assert(this.progressHandlerCount > 0,
                "Expecting progress callback.")
      if(wasm.bigIntEnabled){
-        T.assert(4n===db.changes(false,true));
+        T.assert(3n===db.changes(false,true));
      }
+      rc = db.exec({
+        sql: "INSERT INTO t(a,b) values('blob',X'6869') RETURNING 13",
+        rowMode: 0
+      });
+      T.assert(Array.isArray(rc))
+        .assert(1===rc.length)
+        .assert(13 === rc[0])
+        .assert(1===db.changes());

      let vals = db.selectValues('select a from t order by a limit 2');
      T.assert( 2 === vals.length )
@@ -1373,10 +1386,10 @@ self.sqlite3InitModule = sqlite3InitModule;
          T.assert(
            3 === this._myState
            /* Recall that "this" is the options object. */
+          ).assert(
+            this.columnNames===colNames
          ).assert(
            this.columnNames[0]==='a' && this.columnNames[1]==='b'
-            /* options.columnNames is filled out before the first
-               Stmt.step(). */
          ).assert(
            (row.a%2 && row.a<6) || 'blob'===row.a
          );
@@ -1386,6 +1399,14 @@ self.sqlite3InitModule = sqlite3InitModule;
        .assert('a' === colNames[0])
        .assert(4 === counter)
        .assert(4 === list.length);
+      colNames = [];
+      db.exec({
+        /* Ensure that columnNames is populated for empty result sets. */
+        sql: "SELECT a a, b B FROM t WHERE 0",
+        columnNames: colNames
+      });
+      T.assert(2===colNames.length)
+        .assert('a'===colNames[0] && 'B'===colNames[1]);
      list.length = 0;
      db.exec("SELECT a a, b b FROM t",{
        rowMode: 'array',
@@ -1438,11 +1459,14 @@ self.sqlite3InitModule = sqlite3InitModule;

      let st = db.prepare("update t set b=:b where a='blob'");
      try {
+        T.assert(0===st.columnCount);
        const ndx = st.getParamIndex(':b');
        T.assert(1===ndx);
-        st.bindAsBlob(ndx, "ima blob").reset(true);
+        st.bindAsBlob(ndx, "ima blob")
+          /*step() skipped intentionally*/.reset(true);
      } finally {
-        st.finalize();
+        T.assert(0===st.finalize())
+          .assert(undefined===st.finalize());        
      }

      try {
@@ -1604,7 +1628,19 @@ self.sqlite3InitModule = sqlite3InitModule;
        .assert(3===rc[1].a)
        .assert(4===rc[1].b);
    })
-
+  ////////////////////////////////////////////////////////////////////////
+    .t('selectArray/Object/Values() via INSERT/UPDATE...RETURNING', function(sqlite3){
+      let rc = this.db.selectObject("INSERT INTO t(a,b) VALUES(83,84) RETURNING a as AA");
+      T.assert(83===rc.AA);
+      rc = this.db.selectArray("UPDATE T set a=85 WHERE a=83 RETURNING b as BB");
+      T.assert(Array.isArray(rc)).assert(84===rc[0]);
+      //log("select * from t:",this.db.selectObjects("select * from t order by a"));
+      rc = this.db.selectValues("UPDATE T set a=a*1 RETURNING a");
+      T.assert(Array.isArray(rc))
+        .assert(5 === rc.length)
+        .assert('number'===typeof rc[0])
+        .assert(rc[0]|0 === rc[0] /* is small integer */);
+    })
  ////////////////////////////////////////////////////////////////////////
    .t({
      name: 'sqlite3_js_db_export()',
@@ -1,5 +1,5 @@
-C Version\s3.42.0
-D 2023-05-16T12:36:15.536
+C Version\s3.42.1
+D 2025-08-06T11:05:53.478
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -7,7 +7,7 @@ F Makefile.in 764f2e3e8fb4ae1c8dfe03e65b2b3b01bd1fc57edf78ec2cab3a1301e90e1905
 F Makefile.linux-gcc f609543700659711fbd230eced1f01353117621dccae7b9fb70daa64236c5241
 F Makefile.msc ce7bea7931e1ef96b0f44c0362074a8bb62e61a0e7cfdb05afebd928adaacc2b
 F README.md e05bd8fcb45da04ab045c37f79a98654e8aa3b3b8f302cfbba80a0d510df75f7
-F VERSION 17f95ae2fdf21f0e9575eb0b0511ea63f15d71dfff431b21c2b4adbfa70cfbbf
+F VERSION a965e2eadbfaaf0fb67e20b52e49b96a9927b3f4a9b8fc9be228c87aee67e9cf
 F aclocal.m4 a5c22d164aff7ed549d53a90fa56d56955281f50
 F art/sqlite370.eps aa97a671332b432a54e1d74ff5e8775be34200c2
 F art/sqlite370.ico af56c1d00fee7cd4753e8631ed60703ed0fc6e90
@@ -33,7 +33,7 @@ F autoconf/tea/win/nmakehlp.c b01f822eabbe1ed2b64e70882d97d48402b42d2689a1ea0034
 F autoconf/tea/win/rules.vc c511f222b80064096b705dbeb97060ee1d6b6d63
 F config.guess 883205ddf25b46f10c181818bf42c09da9888884af96f79e1719264345053bd6
 F config.sub c2d0260f17f3e4bc0b6808fccf1b291cb5e9126c14fc5890efc77b9fd0175559
-F configure 2f2c090e0a1d051bb53741f0c961f5ebb24507a4f599d686ad6d7ff236144609 x
+F configure c57ec9c375edc1443a8cd22efc8bf6186db7ebbab78b184b64f5510f22b2d6e8 x
 F configure.ac 4654d32ac0a0d0b48f1e1e79bdc3d777b723cf2f63c33eb1d7c4ed8b435938e8
 F contrib/sqlitecon.tcl 210a913ad63f9f991070821e599d600bd913e0ad
 F doc/F2FS.txt c1d4a0ae9711cfe0e1d8b019d154f1c29e0d3abfe820787ba1e9ed7691160fcd
@@ -92,7 +92,7 @@ F ext/fts5/fts5_buffer.c 3001fbabb585d6de52947b44b455235072b741038391f830d6b7292
 F ext/fts5/fts5_config.c 051056a9052f5d3a4d1c695f996fd364f920e341f136c60ab2c04aa7e267113f
 F ext/fts5/fts5_expr.c 58fb8ceddfb1cefcd54510f9f2f33c220ef9d1b3fa77462111f5ae2a825ab7b1
 F ext/fts5/fts5_hash.c d4fb70940359f2120ccd1de7ffe64cc3efe65de9e8995b822cd536ff64c96982
-F ext/fts5/fts5_index.c de3cdae2e0056594aad97a728be5c43b6d7a6cdc7e9cc16f197892b2d8689c21
+F ext/fts5/fts5_index.c 2c2d778fabfb3e6a876b0c81e3333e0da5e88c638711d9b5b3e9a64270de8053
 F ext/fts5/fts5_main.c b4dba04a36aaf9b8e8cef0100b6dbb422cc74753eacc11d6401cac7a87c0f38d
 F ext/fts5/fts5_storage.c 76c6085239eb44424004c022e9da17a5ecd5aaec859fba90ad47d3b08f4c8082
 F ext/fts5/fts5_tcl.c b1445cbe69908c411df8084a10b2485500ac70a9c747cdc8cda175a3da59d8ae
@@ -137,7 +137,7 @@ F ext/fts5/test/fts5corrupt3.test 7da9895dafa404efd20728f66ff4b94399788bdc042c36
 F ext/fts5/test/fts5corrupt4.test f4c08e2182a48d8b70975fd869ee5391855c06d8a0ff87b6a2529e7c5a88a1d3
 F ext/fts5/test/fts5corrupt5.test 550d0884c14424f9acad051a741f1dd99ec9342277d938e91ff3daf9123d1209
 F ext/fts5/test/fts5corrupt6.test bf8eeae07825b088b9665d9d8e4accbd8dc9bf3cb85b6c64cf6c9e18ccc420a4
-F ext/fts5/test/fts5corrupt7.test f3e68673af2514e31dd67a2ed163f7f597252ab683dec155b8db0cdc0b668342
+F ext/fts5/test/fts5corrupt7.test 80ad7f683a8bda2404731bb77e8c3dbbb620c1f6cc583cca8239f6accd6338c0
 F ext/fts5/test/fts5delete.test 619295b20dbc1d840b403ee07c878f52378849c3c02e44f2ee143b3e978a0aa7
 F ext/fts5/test/fts5detail.test 54015e9c43ec4ba542cfb93268abdf280e0300f350efd08ee411284b03595cc4
 F ext/fts5/test/fts5determin.test 1b77879b2ae818b5b71c859e534ee334dac088b7cf3ff3bf76a2c82b1c788d11
@@ -189,12 +189,12 @@ F ext/fts5/test/fts5rebuild.test 55d6f17715cddbf825680dd6551efbc72ed916d8cf1cde4
 F ext/fts5/test/fts5restart.test 835ecc8f449e3919f72509ab58056d0cedca40d1fe04108ccf8ac4c2ba41f415
 F ext/fts5/test/fts5rowid.test b8790ec170a8dc1942a15aef3db926a5f3061b1ff171013003d8297203a20ad6
 F ext/fts5/test/fts5savepoint.test fc02929f238d02a22df4172625704e029f7c1e0e92e332d654375690f8e6e43f
-F ext/fts5/test/fts5secure.test 214a561519d1b1817f146efd1057e2a97cc896e75c2accc77157d874154bda64
+F ext/fts5/test/fts5secure.test 833f987e6902a9ab20fabbaa7ca0662c6187fa368cbc7a8082fdf2bf22ee0304
 F ext/fts5/test/fts5secure2.test 2e961d7eef939f294c56b5d895cac7f1c3a60b934ee2cfd5e5e620bdf1ba6bbc
-F ext/fts5/test/fts5secure3.test c7e1080a6912f2a3ac68f2e05b88b72a99de38543509b2bbf427cac5c9c1c610
+F ext/fts5/test/fts5secure3.test 6d066828d225b0dbe5db818d4d6165df7bb70210e68a577e858e8762400d5a23
 F ext/fts5/test/fts5secure4.test 0d10a80590c07891478700af7793b232962042677432b9846cf7fc8337b67c97
 F ext/fts5/test/fts5secure5.test c07a68ced5951567ac116c22f2d2aafae497e47fe9fcb6a335c22f9c7a4f2c3a
-F ext/fts5/test/fts5secure6.test 7a959d834be6725c641b3c3b38ef86570ea671216ad803e054e4fdff33a72ce2
+F ext/fts5/test/fts5secure6.test 48995e4a181dbe0a55e384c90b944db11699219bedafec773c93f36ff80d270c
 F ext/fts5/test/fts5securefault.test dbca2b6a1c16700017f5051138991b705410889933f2a37c57ae8a23b296b10b
 F ext/fts5/test/fts5simple.test a298670508c1458b88ce6030440f26a30673931884eb5f4094ac1773b3ba217b
 F ext/fts5/test/fts5simple2.test 258a1b0c590409bfa5271e872c79572b319d2a56554d0585f68f146a0da603f0
@@ -381,7 +381,7 @@ F ext/recover/recover_common.tcl a61306c1eb45c0c3fc45652c35b2d4ec19729e340bdf65a
 F ext/recover/recoverbuild.test c74170e0f7b02456af41838afeb5353fdb985a48cc2331d661bbabbca7c6b8e3
 F ext/recover/recoverclobber.test 3ba6c0c373c5c63d17e82eced64c05c57ccaf26c1abe1ca7141334022a79f32e
 F ext/recover/recovercorrupt.test 64c081ad1200ae77b447da99eb724785d6bf71715f394543dc7689642e92bf49
-F ext/recover/recovercorrupt2.test 74bef7dd2d7dd4856f3da21be6e213d27da44827e0f5f0946ca0325b46d163ed
+F ext/recover/recovercorrupt2.test 392e4543311e961d4be24b434f1a4171fa8723db64d3094b7648b7652324dbd4
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 F test/sqllog.test 6af6cb0b09f4e44e1917e06ce85be7670302517a
 F test/startup.c 1beb5ca66fcc0fce95c3444db9d1674f90fc605499a574ae2434dcfc10d22805
@@ -1800,7 +1800,7 @@ F test/upfrom1.tcl 8859d9d437f03b44174c4524a7a734a391fd4526fcff65be08285dafc9dc9
 F test/upfrom1.test 8cb06689e99cd707d884faa16da0e8eb26ff658bb01c47ddf72fadade666e6e1
 F test/upfrom2.test 66f3ebf721b3cebd922faee5c386bf244f816d416b57c000753ff51af62328a1
 F test/upfrom3.test 6130f24ebf97f5ea865e5d2a14a2d543fe5428a62e87cc60f62d875e45c1f5f0
-F test/upfrom4.test 1cd82e9423e02b1f63d069e8665c6c3932ec424fd0043d033cc0ba99abf33236
+F test/upfrom4.test 78f742a6577c91a7a55c64edb8811004e7c6aa99b8d57b2320f70a918c357807
 F test/upfromfault.test 3a10075a0043f0c4fad6614b2c371f88a8ba5a4acab68b907438413865d6a8d6
 F test/upsert1.test b0ae2f58680c5205b4bc1cdeed3c3d444057c506f6c44494fa3eac60731d68a2
 F test/upsert2.test 720e94d09f7362a282bc69b3c6b83d51daeaaf0440eb4920a08b86518b8c7496
@@ -1914,13 +1914,13 @@ F test/whereM.test 0dbc9998783458ddcf3cc078ca7c2951d8b2677d472ecf0028f449ed327c0
 F test/wherefault.test 6cf2a9c5712952d463d3f45ebee7f6caf400984df51a195d884cfb7eb0e837a7
 F test/wherelfault.test 9012e4ef5259058b771606616bd007af5d154e64cc25fa9fd4170f6411db44e3
 F test/wherelimit.test afb46397c6d7e964e6e294ba3569864a0c570fe3807afc634236c2b752372f31
-F test/wherelimit2.test 657a3f24aadee62d058c5091ea682dc4af4b95ffe32f137155be49799a58e721
+F test/wherelimit2.test b9e4bfe7b4d7c2f85f99cf2bd2c51369378d04b1f3d1b60557423752003bfd90
 F test/widetab1.test c296a98e123762de79917350e45fa33fdf88577a2571eb3a64c8bf7e44ef74d1
 F test/win32heap.test 10fd891266bd00af68671e702317726375e5407561d859be1aa04696f2aeee74
 F test/win32lock.test e0924eb8daac02bf80e9da88930747bd44dd9b230b7759fed927b1655b467c9c
 F test/win32longpath.test 4baffc3acb2e5188a5e3a895b2b543ed09e62f7c72d713c1feebf76222fe9976
 F test/win32nolock.test ac4f08811a562e45a5755e661f45ca85892bdbbc
-F test/window1.test 5ba48e9d33231e6ef16f21426bade9ccc52abf65a10587bff90a6c14fe174594
+F test/window1.test 1e7e13d36235b9a08fcb9790f2b05383f2f8c9538532b027f455766686926114
 F test/window2.tcl 492c125fa550cda1dd3555768a2303b3effbeceee215293adf8871efc25f1476
 F test/window2.test e466a88bd626d66edc3d352d7d7e1d5531e0079b549ba44efb029d1fbff9fd3c
 F test/window3.tcl acea6e86a4324a210fd608d06741010ca83ded9fde438341cb978c49928faf03
@@ -2034,7 +2034,7 @@ F tool/speedtest2.tcl ee2149167303ba8e95af97873c575c3e0fab58ff
 F tool/speedtest8.c 2902c46588c40b55661e471d7a86e4dd71a18224
 F tool/speedtest8inst1.c 7ce07da76b5e745783e703a834417d725b7d45fd
 F tool/split-sqlite3c.tcl 5aa60643afca558bc732b1444ae81a522326f91e1dc5665b369c54f09e20de60
-F tool/sqldiff.c 4f967c199c5f93eec64978e3a625d6c07fb1162212b1d48f65740d9eb4607eee
+F tool/sqldiff.c 2a693b4e7c1818c23f871f82f0c3fe67d80b67e3f087893089d33da29c1e387e
 F tool/sqlite3_analyzer.c.in f88615bf33098945e0a42f17733f472083d150b58bdaaa5555a7129d0a51621c
 F tool/sqltclsh.c.in 1bcc2e9da58fadf17b0bf6a50e68c1159e602ce057210b655d50bad5aaaef898
 F tool/sqltclsh.tcl 862f4cf1418df5e1315b5db3b5ebe88969e2a784525af5fbf9596592f14ed848
@@ -2070,10 +2070,9 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 4254f086419892634c80b0b915e14edea365adc6a45bcc75eecba889da274ac3
-R 5363a07f3e1462ec2f4570a33edb7167
-T +sym-release *
-T +sym-version-3.42.0 *
+P 6f4a6e564b49bed1b31fe698c358c5944c6a1272e6d4fc6f6d98f56051bdba28
+R cd3646fd8f662f821a5204ff5a207439
+T +sym-version-3.42.1 *
 U drh
-Z 0ee8e0816fa6ac728bed7565aed4ec35
+Z 6c9f85d5eafe7611858216c68008e439
 # Remove this line to create a well-formed Fossil manifest.
@@ -1 +1 @@
-831d0fb2836b71c9bc51067c49fee4b8f18047814f2ff22d817d25195cf350b0
+4a8bf3c146c24759709eec55cdb0a9d2153c3a40e6645727c55c0404a99b5b4a
@@ -1849,14 +1849,15 @@ static int loadStatTbl(
    decodeIntArray((char*)sqlite3_column_text(pStmt,2),nCol,pSample->anLt,0,0);
    decodeIntArray((char*)sqlite3_column_text(pStmt,3),nCol,pSample->anDLt,0,0);

-    /* Take a copy of the sample. Add two 0x00 bytes the end of the buffer.
+    /* Take a copy of the sample. Add 8 extra 0x00 bytes the end of the buffer.
    ** This is in case the sample record is corrupted. In that case, the
    ** sqlite3VdbeRecordCompare() may read up to two varints past the
    ** end of the allocated buffer before it realizes it is dealing with
-    ** a corrupt record. Adding the two 0x00 bytes prevents this from causing
+    ** a corrupt record.  Or it might try to read a large integer from the
+    ** buffer.  In any case, eight 0x00 bytes prevents this from causing
    ** a buffer overread.  */
    pSample->n = sqlite3_column_bytes(pStmt, 4);
-    pSample->p = sqlite3DbMallocZero(db, pSample->n + 2);
+    pSample->p = sqlite3DbMallocZero(db, pSample->n + 8);
    if( pSample->p==0 ){
      sqlite3_finalize(pStmt);
      return SQLITE_NOMEM_BKPT;
@@ -1634,7 +1634,7 @@ static int defragmentPage(MemPage *pPage, int nMaxFrag){
  iCellStart = get2byte(&data[hdr+5]);
  if( nCell>0 ){
    temp = sqlite3PagerTempSpace(pPage->pBt->pPager);
-    memcpy(&temp[iCellStart], &data[iCellStart], usableSize - iCellStart);
+    memcpy(temp, data, usableSize);
    src = temp;
    for(i=0; i<nCell; i++){
      u8 *pAddr;     /* The i-th cell pointer */
@@ -3338,7 +3338,6 @@ static int lockBtree(BtShared *pBt){
    ){
      goto page1_init_failed;
    }
-    pBt->btsFlags |= BTS_PAGESIZE_FIXED;
    assert( (pageSize & 7)==0 );
    /* EVIDENCE-OF: R-59310-51205 The "reserved space" size in the 1-byte
    ** integer at offset 20 is the number of bytes of space at the end of
@@ -3358,6 +3357,7 @@ static int lockBtree(BtShared *pBt){
      releasePageOne(pPage1);
      pBt->usableSize = usableSize;
      pBt->pageSize = pageSize;
+      pBt->btsFlags |= BTS_PAGESIZE_FIXED;
      freeTempSpace(pBt);
      rc = sqlite3PagerSetPagesize(pBt->pPager, &pBt->pageSize,
                                   pageSize-usableSize);
@@ -3377,6 +3377,7 @@ static int lockBtree(BtShared *pBt){
    if( usableSize<480 ){
      goto page1_init_failed;
    }
+    pBt->btsFlags |= BTS_PAGESIZE_FIXED;
    pBt->pageSize = pageSize;
    pBt->usableSize = usableSize;
 #ifndef SQLITE_OMIT_AUTOVACUUM
@@ -10662,7 +10663,7 @@ static int checkTreePage(
  if( iPage==0 ) return 0;
  if( checkRef(pCheck, iPage) ) return 0;
  pCheck->zPfx = "Tree %u page %u: ";
-  pCheck->v0 = pCheck->v1 = iPage;
+  pCheck->v1 = iPage;
  if( (rc = btreeGetPage(pBt, iPage, &pPage, 0))!=0 ){
    checkAppendMsg(pCheck,
       "unable to get the page. error code=%d", rc);
@@ -10999,6 +11000,7 @@ int sqlite3BtreeIntegrityCheck(
      checkPtrmap(&sCheck, aRoot[i], PTRMAP_ROOTPAGE, 0);
    }
 #endif
+    sCheck.v0 = aRoot[i];
    checkTreePage(&sCheck, aRoot[i], &notUsed, LARGEST_INT64);
  }
  pBt->db->flags = savedDbFlags;
@@ -35,6 +35,7 @@ Table *sqlite3SrcListLookup(Parse *pParse, SrcList *pSrc){
  pTab = sqlite3LocateTableItem(pParse, 0, pItem);
  sqlite3DeleteTable(pParse->db, pItem->pTab);
  pItem->pTab = pTab;
+  pItem->fg.notCte = 1;
  if( pTab ){
    pTab->nTabRef++;
    if( pItem->fg.isIndexedBy && sqlite3IndexedByLookup(pParse, pItem) ){
@@ -2191,7 +2191,7 @@ int sqlite3ExprIdToTrueFalse(Expr *pExpr){
 ** and 0 if it is FALSE.
 */
 int sqlite3ExprTruthValue(const Expr *pExpr){
-  pExpr = sqlite3ExprSkipCollate((Expr*)pExpr);
+  pExpr = sqlite3ExprSkipCollateAndLikely((Expr*)pExpr);
  assert( pExpr->op==TK_TRUEFALSE );
  assert( !ExprHasProperty(pExpr, EP_IntValue) );
  assert( sqlite3StrICmp(pExpr->u.zToken,"true")==0
@@ -6413,6 +6413,7 @@ static void findOrCreateAggInfoColumn(
  assert( pAggInfo->iFirstReg==0 );
  pCol = pAggInfo->aCol;
  for(k=0; k<pAggInfo->nColumn; k++, pCol++){
+    if( pCol->pCExpr==pExpr ) return;
    if( pCol->iTable==pExpr->iTable
     && pCol->iColumn==pExpr->iColumn
     && pExpr->op!=TK_IF_NULL_ROW
@@ -6459,7 +6460,7 @@ fix_up_expr:
  if( pExpr->op==TK_COLUMN ){
    pExpr->op = TK_AGG_COLUMN;
  }
-  pExpr->iAgg = (i16)k;
+  pExpr->iAgg = (i16)(k&0x7fff);
 }

 /*
@@ -6534,7 +6534,7 @@ static int aggregateIdxEprRefToColCallback(Walker *pWalker, Expr *pExpr){
  pExpr->op = TK_AGG_COLUMN;
  pExpr->iTable = pCol->iTable;
  pExpr->iColumn = pCol->iColumn;
-  ExprClearProperty(pExpr, EP_Skip|EP_Collate);
+  ExprClearProperty(pExpr, EP_Skip|EP_Collate|EP_Unlikely);
  return WRC_Prune;
 }

@@ -10530,7 +10530,8 @@ static int do_meta_command(char *zLine, ShellState *p){
          "with tabcols as materialized(\n"
          "select tname, cname\n"
          "from ("
-          " select ss.tname as tname, ti.name as cname\n"
+          " select printf('\"%%w\"',ss.tname) as tname,"
+          " printf('\"%%w\"',ti.name) as cname\n"
          " from (%z) ss\n inner join pragma_table_info(tname) ti))\n"
          "select 'SELECT total(bad_text_count) AS bad_text_count\n"
          "FROM ('||group_concat(query, ' UNION ALL ')||')' as btc_query\n"
@@ -12177,7 +12178,7 @@ int SQLITE_CDECL wmain(int argc, wchar_t **wargv){
 #endif
 #ifdef SQLITE_ENABLE_MULTIPLEX
    }else if( cli_strcmp(z,"-multiplex")==0 ){
-      extern int sqlite3_multiple_initialize(const char*,int);
+      extern int sqlite3_multiplex_initialize(const char*,int);
      sqlite3_multiplex_initialize(0, 1);
 #endif
    }else if( cli_strcmp(z,"-mmap")==0 ){
@@ -12220,7 +12221,7 @@ int SQLITE_CDECL wmain(int argc, wchar_t **wargv){
      bail_on_error = 1;
    }else if( cli_strcmp(z,"-nonce")==0 ){
      free(data.zNonce);
-      data.zNonce = strdup(argv[++i]);
+      data.zNonce = strdup(cmdline_option_value(argc, argv, ++i));
    }else if( cli_strcmp(z,"-unsafe-testing")==0 ){
      ShellSetFlag(&data,SHFLG_TestingMode);
    }else if( cli_strcmp(z,"-safe")==0 ){
@@ -643,7 +643,8 @@ void sqlite3TreeViewExpr(TreeView *pView, const Expr *pExpr, u8 moreToFollow){
      };
      assert( pExpr->op2==TK_IS || pExpr->op2==TK_ISNOT );
      assert( pExpr->pRight );
-      assert( sqlite3ExprSkipCollate(pExpr->pRight)->op==TK_TRUEFALSE );
+      assert( sqlite3ExprSkipCollateAndLikely(pExpr->pRight)->op
+                  == TK_TRUEFALSE );
      x = (pExpr->op2==TK_ISNOT)*2 + sqlite3ExprTruthValue(pExpr->pRight);
      zUniOp = azOp[x];
      break;
@@ -224,7 +224,7 @@ static void updateFromSelect(

  assert( pTabList->nSrc>1 );
  if( pSrc ){
-    pSrc->a[0].fg.notCte = 1;
+    assert( pSrc->a[0].fg.notCte );
    pSrc->a[0].iCursor = -1;
    pSrc->a[0].pTab->nTabRef--;
    pSrc->a[0].pTab = 0;
@@ -4231,6 +4231,15 @@ static int vdbeRecordCompareDebug(
    if( d1+(u64)serial_type1+2>(u64)nKey1
     && d1+(u64)sqlite3VdbeSerialTypeLen(serial_type1)>(u64)nKey1 
    ){
+      if( serial_type1>=1
+       && serial_type1<=7
+       && d1+(u64)sqlite3VdbeSerialTypeLen(serial_type1)<=(u64)nKey1+8
+       && CORRUPT_DB
+      ){
+        return 1;  /* corrupt record not detected by
+                   ** sqlite3VdbeRecordCompareWithSkip().  Return true
+                   ** to avoid firing the assert() */
+      }
      break;
    }

@@ -1431,6 +1431,7 @@ static sqlite3_value *valueNew(sqlite3 *db, struct ValueNewStat4Ctx *p){
    }
  
    pRec->nField = p->iVal+1;
+    sqlite3VdbeMemSetNull(&pRec->aMem[p->iVal]);
    return &pRec->aMem[p->iVal];
  }
 #else
@@ -377,4 +377,23 @@ do_execsql_test analyze-6.1 {
  SELECT tbl FROM sqlite_stat1 WHERE idx IS NULL ORDER BY tbl;
 } {SQLiteDemo2 sqliteDemo t1}

+# The following caused a small buffer overread in STAT4 processing prior
+# to check-in [b99135288b157044].
+#
+ifcapable stat4 {
+  reset_db
+  database_may_be_corrupt
+  do_execsql_test analyze-7.1 {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b INTEGER);
+    INSERT INTO t1 VALUES(1, 7223372036854775);
+    INSERT INTO t1 VALUES(2, 7223372036854776);
+    INSERT INTO t1 VALUES(3, 7223372036854777);
+    CREATE INDEX i1 ON t1(b);
+    ANALYZE;
+    UPDATE sqlite_stat4 SET sample = substr(sample, 0, 4);
+    ANALYZE sqlite_schema;
+    SELECT * FROM t1 WHERE b>7223372036854775
+  } {2 7223372036854776 3 7223372036854777}
+}
+
 finish_test
@@ -248,7 +248,7 @@ do_test corrupt2-5.1 {
  }
  set result
 } {{*** in database main ***
-Tree 11 page 2 cell 0: 2nd reference to page 10
+Tree 2 page 2 cell 0: 2nd reference to page 10
 Page 4: never used}}

 db2 close
@@ -262,5 +262,14 @@ do_test shell2-1.4.11 {
 SELECT count(*) FROM t;}]]
 } {0 1}

+# Bug from forum post 7cbe081746dd3803
+# Keywords as column names were producing an error message.
+do_test shell2-1.4.12 {
+  set res [catchcmd :memory: [string trim {
+ CREATE TABLE "group"("order" text);
+ INSERT INTO "group" VALUES ('ABC');
+.sha3sum}]]
+} {0 ca08bc02b7e95c7df431a3a4b1cc0f8d8743914793473f55b5558e03}
+

 finish_test
@@ -63,4 +63,26 @@ CREATE TABLE t3(a,b,c);
 INSERT INTO t3(rowid,a,b,c) VALUES(1,111,222,333);
 DROP TABLE t4;}

+db close
+forcedelete test.db test2.db
+sqlite3 db test.db
+
+do_test sqldiff-2.0 {
+  db eval {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY);
+  }
+  db close
+  sqlite3 db test2.db
+  db eval {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  }
+  db close
+  set line "exec $PROG test.db test2.db"
+  unset -nocomplain ::MSG
+  catch {eval $line} ::MSG
+} {0}
+do_test sqldiff-2.1 {
+  set ::MSG
+} {ALTER TABLE t1 ADD COLUMN b;}
+
 finish_test
@@ -127,4 +127,30 @@ do_execsql_test 400 {
  1000 -    -   -
 }

+# Forum post https://sqlite.org/forum/forumpost/36ff78b2a3
+#
+ifcapable update_delete_limit {
+  reset_db
+  do_execsql_test 500 {
+    CREATE TABLE t1(abc INT, def INT);  
+    INSERT INTO t1 VALUES(0,0);
+    INSERT INTO t1 VALUES(0,0);
+    INSERT INTO t1 VALUES(0,0);
+    CREATE TABLE dual(dummy TEXT);  
+    INSERT INTO dual(dummy) VALUES('X');
+  } {}
+  
+  do_execsql_test 510 {
+    UPDATE t1
+      SET (abc, def)=(SELECT  x, 123)
+      FROM dual LEFT JOIN (SELECT 789 AS 'x' FROM dual) AS d2
+      LIMIT 2
+  }
+  
+  do_execsql_test 520 {
+    SELECT * FROM t1
+  } {789 123 789 123 0 0}
+}
+
+
 finish_test
@@ -299,5 +299,35 @@ do_test 5.5 {
  set ::log
 } {ax a bx b cx c dx d ex a}

+#-----------------------------------------------------------------------
+reset_db
+do_execsql_test 6.0 {
+  CREATE TABLE t2(x);  
+  INSERT INTO t2(x) VALUES(1),(2),(3),(5),(8),(13);
+} {}
+
+do_execsql_test 6.1 {
+  WITH t2 AS MATERIALIZED (VALUES(5))
+  DELETE FROM t2 ORDER BY rank()OVER() LIMIT 2;
+}
+
+do_execsql_test 6.2 {
+  SELECT * FROM t2;
+} {3 5 8 13}
+
+#-------------------------------------------------------------------------
+
+do_execsql_test 7.0 {
+  CREATE TABLE t1(a INT); INSERT INTO t1(a) VALUES(0);
+} {}
+
+do_execsql_test 7.1 {
+  WITH t1(b) AS (SELECT * FROM (SELECT * FROM (VALUES(2))))
+  UPDATE t1 SET a=3 LIMIT 1;
+}
+
+do_execsql_test 7.2 {
+  SELECT * FROM t1;
+} {3}

 finish_test
@@ -2363,4 +2363,17 @@ do_execsql_test 76.5 {
  SELECT (SELECT max(y)+sum(0) OVER ()) FROM t3 LEFT JOIN t4 ON x=y GROUP BY x;
 } {100 {} 400}

+# 2023-05-23 https://sqlite.org/forum/forumpost/fbfe330a20
+#
+reset_db
+do_execsql_test 77.1 {
+  CREATE TABLE t1(x INT);
+  CREATE INDEX t1x ON t1(likely(x));
+  INSERT INTO t1 VALUES(1),(2),(4),(8);
+}
+do_execsql_test 77.2 {
+  SELECT max(~likely(x)) FILTER (WHERE true) FROM t1 INDEXED BY t1x GROUP BY x;
+} {-2 -3 -5 -9}
+
+
 finish_test
@@ -605,18 +605,18 @@ static void diff_one_table(const char *zTab, FILE *out){
      strPrintf(&sql, "%sB.%s", zSep, az[i]);
      zSep = ", ";
    }
-    strPrintf(&sql, ", 1%s -- changed row\n", nPk==n ? "" : ",");
+    strPrintf(&sql, ", 1 /* changed row */");
    while( az[i] ){
-      strPrintf(&sql, "       A.%s IS NOT B.%s, B.%s%s\n",
-                az[i], az2[i], az2[i], az2[i+1]==0 ? "" : ",");
+      strPrintf(&sql, ", A.%s IS NOT B.%s, B.%s",
+                az[i], az2[i], az2[i]);
      i++;
    }
    while( az2[i] ){
-      strPrintf(&sql, "       B.%s IS NOT NULL, B.%s%s\n",
-                az2[i], az2[i], az2[i+1]==0 ? "" : ",");
+      strPrintf(&sql, ", B.%s IS NOT NULL, B.%s",
+                az2[i], az2[i]);
      i++;
    }
-    strPrintf(&sql, "  FROM main.%s A, aux.%s B\n", zId, zId);
+    strPrintf(&sql, "\n  FROM main.%s A, aux.%s B\n", zId, zId);
    zSep = " WHERE";
    for(i=0; i<nPk; i++){
      strPrintf(&sql, "%s A.%s=B.%s", zSep, az[i], az[i]);
@@ -642,12 +642,12 @@ static void diff_one_table(const char *zTab, FILE *out){
    strPrintf(&sql, "%sA.%s", zSep, az[i]);
    zSep = ", ";
  }
-  strPrintf(&sql, ", 2%s -- deleted row\n", nPk==n ? "" : ",");
+  strPrintf(&sql, ", 2 /* deleted row */");
  while( az2[i] ){
-    strPrintf(&sql, "       NULL, NULL%s\n", i==n2-1 ? "" : ",");
+    strPrintf(&sql, ", NULL, NULL");
    i++;
  }
-  strPrintf(&sql, "  FROM main.%s A\n", zId);
+  strPrintf(&sql, "\n  FROM main.%s A\n", zId);
  strPrintf(&sql, " WHERE NOT EXISTS(SELECT 1 FROM aux.%s B\n", zId);
  zSep =          "                   WHERE";
  for(i=0; i<nPk; i++){
@@ -660,12 +660,12 @@ static void diff_one_table(const char *zTab, FILE *out){
    strPrintf(&sql, "%sB.%s", zSep, az[i]);
    zSep = ", ";
  }
-  strPrintf(&sql, ", 3%s -- inserted row\n", nPk==n ? "" : ",");
+  strPrintf(&sql, ", 3 /* inserted row */");
  while( az2[i] ){
-    strPrintf(&sql, "       1, B.%s%s\n", az2[i], az2[i+1]==0 ? "" : ",");
+    strPrintf(&sql, ", 1, B.%s", az2[i]);
    i++;
  }
-  strPrintf(&sql, "  FROM aux.%s B\n", zId);
+  strPrintf(&sql, "\n  FROM aux.%s B\n", zId);
  strPrintf(&sql, " WHERE NOT EXISTS(SELECT 1 FROM main.%s A\n", zId);
  zSep =          "                   WHERE";
  for(i=0; i<nPk; i++){
Author	SHA1	Message	Date
drh	bfe2964c5d	Version 3.42.1 FossilOrigin-Name: 4a8bf3c146c24759709eec55cdb0a9d2153c3a40e6645727c55c0404a99b5b4a	2025-08-06 11:05:53 +00:00
drh	bb0afc2818	Fix the same potential integer overflow problem of [5508b56fd24016c1] in a different and much simpler way. No error is raised but memory errors are avoided. FossilOrigin-Name: 6f4a6e564b49bed1b31fe698c358c5944c6a1272e6d4fc6f6d98f56051bdba28	2025-08-05 21:04:04 +00:00
drh	48b12598cb	Fix a couple of potential integer overflow problems in FTS5. FossilOrigin-Name: 1f479ee3b7fa02fc7dad7fd78177137f5092caca04fa20a0bd2e6e8d9a6ee1ee	2025-08-05 20:33:14 +00:00
drh	e25813cd12	Fix a buffer overread in the sessions extension that could occur when processing a corrupt changeset. FossilOrigin-Name: 5833174c9df7df2307718c2d01c3c766deef24290f34f8b8016952b9604fc31e	2025-08-05 19:36:05 +00:00
dan	015830dced	Fix a problem with an fts5 secure-delete on a rowid/term pair that follows a legacy delete of the same pair. FossilOrigin-Name: f5913e763290043cb0243fc4a9a6c1f56520f291f05e072fd86ceab560985958	2023-10-12 20:03:26 +00:00
dan	81a18232ed	Fix a problem with fts5 secure-delete mode causing fts5 to corrupt its records. FossilOrigin-Name: cc0f82a480a400c670ae1d4193007640056bd545aed75613c088d5869a3fc817	2023-09-08 19:32:48 +00:00
larrybr	d01c7c421d	Fix CLI .sha3sum error message for keyword identifiers, reported in [forum:/forumpost/7cbe081746dd\|forum post 7cbe081746dd]. FossilOrigin-Name: bc27bda164b86892b9dce1b5b6fe3513e6615e4fac6b55e69c828183eefec58d	2023-06-26 17:23:53 +00:00
stephan	177479fb16	Replace some JS 'self' references with 'globalThis', as reported via the npm subproject. FossilOrigin-Name: b6ae84915f364f47f7cb66361dd3cb27f49d6617011077e3a4a669241a4e9dcb	2023-06-26 07:20:21 +00:00
drh	1549472fb9	Fix a buffer over-read that could occur as part of an fts5 secure-delete operation on a database containing corrupt fts5 records. dbsqlfuzz a463eac437783bcd246cc675b87842618a569cae FossilOrigin-Name: 44fdc798de2798870373f881124fd9b8ca58448a8162eabada4d6fe1e2922959	2023-06-12 14:16:19 +00:00
drh	db7f2f8b5f	Make sure temporary sqlite3_value objects used by STAT4 are reset to NULL prior to being reused, to prevent a memory leak associated with the custom xDel string value destructor. dbsqlfuzz 65209ab5d5730e4fd14fff9d024325a77239036e. FossilOrigin-Name: 2cf197a28b4bb3442329c418579d18d307e2b9aed0973e4bca3a44b8c03235c0	2023-06-12 14:12:50 +00:00
drh	cfa35c0c2d	Defer setting the BTS_PAGESIZE_FIXED flag until after we are certain there are no errors and the page size has been set. [forum:/forumpost/b901808856\|Forum post b901808856]. FossilOrigin-Name: cefaf128d2f1361c7853e4e4679bb3237c6e3a80c19cb71a453033846c3e1211	2023-06-12 14:09:11 +00:00
drh	8c3ea529fd	Extra space to prevent a buffer overread on corrupt STAT4 records. dbsqlfuzz 7128d1b41ce9df2c007f9c24c1e89e2f1b2590ca. FossilOrigin-Name: 566c4c14dd0ff0b68ef20968b0bbaee92f88374ee969ee6251dc3764ce935267	2023-06-12 14:03:20 +00:00
drh	575d823095	Simplify a memcpy() in defragmentPage(). It now might copy more content than is strictly necessary, but runs faster and uses less code space. Possible reasons for the improved performance: (1) the copy is now always 8-byte aligned, (2) fewer intermediate results are required which means less register pressure which helps the compiler to optimize the subroutine. FossilOrigin-Name: 1292d676ea68b9347e3b65b9945749deb45f07bf4c83aa5386c3efcade346932	2023-06-12 13:57:42 +00:00
drh	f7d02ca6fa	Fix CLI fault on missing -nonce reported by [forum:/info/f8c14a1134\|forum post f8c14a1134]. FossilOrigin-Name: 67cf7c40961f6d181577783e1c656abb56c4848d087794b6fc98f4d42aba48ea	2023-06-12 13:53:48 +00:00
drh	38657ffcad	Fix a problem causing an infinite loop in the recovery extension when processing a corrupt free-block list. FossilOrigin-Name: d21c06b73dc4e472950fb27e589e951601b642501b0200fd14685174d90d8f7b	2023-06-12 13:46:26 +00:00
drh	6e0d6e0cc1	Fix an issue with sqldiff reported by [forum:/info/9bd2155bdfae25a7\|forum post 9bd2155bdfae25a7]. FossilOrigin-Name: 50721074f70d19128c9ae048a6d9f7608f8c54c42e6b3ae45dfd0939448233bf	2023-06-12 13:43:38 +00:00
drh	1409791d96	Avoid performing aggregate processing more than once for a single expression. FossilOrigin-Name: 1bc549716c8a96a6db579d48027fde7388e1fdad22e39f223984cdb1321fe6b2	2023-05-23 17:43:24 +00:00
drh	51aa802a4a	When converting an aggregate expression to AGG_COLUMN, be sure to remove the EP_Unlikely flag if it is present. FossilOrigin-Name: 20c8a9247be2f0c1606e2c79910f28593898054b99adf505b32ac6352ce8e89e	2023-05-23 15:22:25 +00:00
stephan	eeec597f9b	Extend detection of the INSERT...RETURNING locking case to the DB.selectValue(s)/selectArray/selectObject() family of functions. Add tests for INSERT/UPDATE...RETURNING with those functions. FossilOrigin-Name: 58be212d56d7601e270eb11c77c8371db7507a0a19d4febf1d6c0cd87c0b1016	2023-05-19 18:26:47 +00:00
stephan	303ba6ca1b	oo1.Stmt.finalize() no longer throws, but instead returns the same as the C API. oo1.DB.exec() now triggers the INSERT...RETURNING locking failure as an exception via reset() instead of finalize(). Some code-adjacent internal API renaming for clarity's sake. FossilOrigin-Name: 15f105c78268fb68a4713da444452f5d7b038019b21024302beebb6b26ff2244	2023-05-19 17:52:24 +00:00
stephan	1c1dfc1d46	sqlite3.oo1.Stmt.reset() and finalize() now throw if their underlying C-level APIs return non-0, in order to avoid silent failure in certain locking-related cases. FossilOrigin-Name: db36a9ef5958cd761ca5bde697cc7cd83328dcc24d818023b813f6f860052754	2023-05-19 16:39:02 +00:00
stephan	10f6cdd308	Correct typo in an 'extern' decl name, reported in [forum:1d4342156439233b\|forum post 1d4342156439233b]. FossilOrigin-Name: 3bb1d7b376b740c1a7bca82a8908840a9e6e9c1474c4f0fedf3d7eb917305b99	2023-05-19 12:46:38 +00:00
drh	f1343a7532	Fix incorrect b-tree root page reports from the enhanced PRAGMA integrity_check output introduced in version 3.42.0. FossilOrigin-Name: 0a0b7a2d3178f1aa650acd1d729566c889e27c9714463437a7f17c08e992ffd3	2023-05-18 23:28:33 +00:00
drh	7a68f807d4	Avoid an assert() failure that could occur in SQLITE_ENABLE_UPDATE_DELETE_LIMIT builds when a WITH clause attached to an UPDATE or DELETE statement created a CTE of the same name as the table being modified. FossilOrigin-Name: 60f03e3245089ce24020105a4dbe4c9ac3de4c4978ec87b62538c1a3929e11b3	2023-05-17 11:45:25 +00:00
stephan	2997f03826	Resolve the JS-side corner case reported in [forum:7774b773937cbe0a \| forum post 7774b773937cbe0a] by not caching oo1.Stmt.columnCount. FossilOrigin-Name: adee1440bdca6ef9ab4096abf6cb59b30cd801055f6158b153dfcd512abdd8bb	2023-05-17 00:47:03 +00:00
drh	09d3f5df07	Increase the version number to 3.42.1 FossilOrigin-Name: da0c662b31ae8bf721de5bd57aaed1fa1844cd8eb721c54da005b4c2d1d3ff5e	2023-05-17 00:32:45 +00:00
drh	27052c3e6f	Fix two assert() statements that failed to take into account the likely() built-in function. This does not impact production code. FossilOrigin-Name: 634fe4c2386d42fac8bc6c4633ea95e8af61c1b0e8bf11a89b49d8dcbcfeee31	2023-05-17 00:29:46 +00:00
stephan	0c7bcf4c0e	Doc typo fix. No code changes. FossilOrigin-Name: e841b142f583e49350c7cdd14dc4da72434cc67c7b521ae741e03e37e785d7e0	2023-05-10 21:08:01 +00:00
stephan	161f742856	Resolve the JS-side corner case reported in [forum:7774b773937cbe0a \| forum post 7774b773937cbe0a] by not caching oo1.Stmt.columnCount. FossilOrigin-Name: c3d25c3a25e79e01c4ad0cf11f7dc3b0fb1932f3bcd04935a728ef62f7e07cf1	2023-05-10 21:06:02 +00:00
@@ -1 +1 @@
 .42.0
 .42.1