SQLite

Check-in [1ab10cbf27]
Login

Many hyperlinks are disabled.
Use anonymous login to enable hyperlinks.

Overview
Comment:Merge enhancements from trunk.
Downloads: Tarball | ZIP archive
Timelines: family | ancestors | descendants | both | index-expr
Files: files | file ages | folders
SHA1: 1ab10cbf27245961b40eda1ce70f35646f0a9966
User & Date: drh 2015-09-03 14:18:12.100
Context
2015-09-04
13:02
Merge trunk enhancements, and espeically the fix for allowing strings as column identifers in CREATE INDEX statements. (Closed-Leaf check-in: 5ff8552938 user: drh tags: index-expr)
2015-09-03
14:18
Merge enhancements from trunk. (check-in: 1ab10cbf27 user: drh tags: index-expr)
13:46
Add the sqlite3VdbeLoadString() and sqlite3VdbeMultiLoad() routines to help with code generation, especially on PRAGMAs. Rename sqlite3VdbeAddGoto() to just sqlite3VdbeGoto(). (check-in: 847387ec8e user: drh tags: trunk)
2015-09-01
13:17
Rename SQLITE_FUNC_VARYING to SQLITE_FUNC_SLOCHNG - a more descriptive name for what that bit means. (check-in: ff5137a6dd user: drh tags: index-expr)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/alter.c.
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
  ** one is defined. The xRename() callback will modify the names
  ** of any resources used by the v-table implementation (including other
  ** SQLite tables) that are identified by the name of the virtual table.
  */
#ifndef SQLITE_OMIT_VIRTUALTABLE
  if( pVTab ){
    int i = ++pParse->nMem;
    sqlite3VdbeAddOp4(v, OP_String8, 0, i, 0, zName, 0);
    sqlite3VdbeAddOp4(v, OP_VRename, i, 0, 0,(const char*)pVTab, P4_VTAB);
    sqlite3MayAbort(pParse);
  }
#endif

  /* figure out how many UTF-8 characters are in zName */
  zTabName = pTab->zName;







|







487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
  ** one is defined. The xRename() callback will modify the names
  ** of any resources used by the v-table implementation (including other
  ** SQLite tables) that are identified by the name of the virtual table.
  */
#ifndef SQLITE_OMIT_VIRTUALTABLE
  if( pVTab ){
    int i = ++pParse->nMem;
    sqlite3VdbeLoadString(v, i, zName);
    sqlite3VdbeAddOp4(v, OP_VRename, i, 0, 0,(const char*)pVTab, P4_VTAB);
    sqlite3MayAbort(pParse);
  }
#endif

  /* figure out how many UTF-8 characters are in zName */
  zTabName = pTab->zName;
Changes to src/analyze.c.
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
  ** to use for scanning indexes (iIdxCur). No index cursor is opened at
  ** this time though.  */
  sqlite3TableLock(pParse, iDb, pTab->tnum, 0, pTab->zName);
  iTabCur = iTab++;
  iIdxCur = iTab++;
  pParse->nTab = MAX(pParse->nTab, iTab);
  sqlite3OpenTable(pParse, iTabCur, iDb, pTab, OP_OpenRead);
  sqlite3VdbeAddOp4(v, OP_String8, 0, regTabname, 0, pTab->zName, 0);

  for(pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext){
    int nCol;                     /* Number of columns in pIdx. "N" */
    int addrRewind;               /* Address of "OP_Rewind iIdxCur" */
    int addrNextRow;              /* Address of "next_row:" */
    const char *zIdxName;         /* Name of the index */
    int nColTest;                 /* Number of columns to test for changes */







|







1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
  ** to use for scanning indexes (iIdxCur). No index cursor is opened at
  ** this time though.  */
  sqlite3TableLock(pParse, iDb, pTab->tnum, 0, pTab->zName);
  iTabCur = iTab++;
  iIdxCur = iTab++;
  pParse->nTab = MAX(pParse->nTab, iTab);
  sqlite3OpenTable(pParse, iTabCur, iDb, pTab, OP_OpenRead);
  sqlite3VdbeLoadString(v, regTabname, pTab->zName);

  for(pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext){
    int nCol;                     /* Number of columns in pIdx. "N" */
    int addrRewind;               /* Address of "OP_Rewind iIdxCur" */
    int addrNextRow;              /* Address of "next_row:" */
    const char *zIdxName;         /* Name of the index */
    int nColTest;                 /* Number of columns to test for changes */
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
    }else{
      nCol = pIdx->nColumn;
      zIdxName = pIdx->zName;
      nColTest = pIdx->uniqNotNull ? pIdx->nKeyCol-1 : nCol-1;
    }

    /* Populate the register containing the index name. */
    sqlite3VdbeAddOp4(v, OP_String8, 0, regIdxname, 0, zIdxName, 0);
    VdbeComment((v, "Analysis for %s.%s", pTab->zName, zIdxName));

    /*
    ** Pseudo-code for loop that calls stat_push():
    **
    **   Rewind csr
    **   if eof(csr) goto end_of_scan;







|







1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
    }else{
      nCol = pIdx->nColumn;
      zIdxName = pIdx->zName;
      nColTest = pIdx->uniqNotNull ? pIdx->nKeyCol-1 : nCol-1;
    }

    /* Populate the register containing the index name. */
    sqlite3VdbeLoadString(v, regIdxname, zIdxName);
    VdbeComment((v, "Analysis for %s.%s", pTab->zName, zIdxName));

    /*
    ** Pseudo-code for loop that calls stat_push():
    **
    **   Rewind csr
    **   if eof(csr) goto end_of_scan;
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
        sqlite3VdbeAddOp3(v, OP_Column, iIdxCur, i, regTemp);
        aGotoChng[i] = 
        sqlite3VdbeAddOp4(v, OP_Ne, regTemp, 0, regPrev+i, pColl, P4_COLLSEQ);
        sqlite3VdbeChangeP5(v, SQLITE_NULLEQ);
        VdbeCoverage(v);
      }
      sqlite3VdbeAddOp2(v, OP_Integer, nColTest, regChng);
      sqlite3VdbeAddOp2(v, OP_Goto, 0, endDistinctTest);
  
  
      /*
      **  chng_addr_0:
      **   regPrev(0) = idx(0)
      **  chng_addr_1:
      **   regPrev(1) = idx(1)







|







1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
        sqlite3VdbeAddOp3(v, OP_Column, iIdxCur, i, regTemp);
        aGotoChng[i] = 
        sqlite3VdbeAddOp4(v, OP_Ne, regTemp, 0, regPrev+i, pColl, P4_COLLSEQ);
        sqlite3VdbeChangeP5(v, SQLITE_NULLEQ);
        VdbeCoverage(v);
      }
      sqlite3VdbeAddOp2(v, OP_Integer, nColTest, regChng);
      sqlite3VdbeGoto(v, endDistinctTest);
  
  
      /*
      **  chng_addr_0:
      **   regPrev(0) = idx(0)
      **  chng_addr_1:
      **   regPrev(1) = idx(1)
Changes to src/btree.c.
8696
8697
8698
8699
8700
8701
8702
8703
8704
8705
8706
8707
8708
8709
8710
8711
8712
8713
8714
8715
8716
8717
8718
8719
8720
*/
static void checkAppendMsg(
  IntegrityCk *pCheck,
  const char *zFormat,
  ...
){
  va_list ap;
  char zBuf[200];
  if( !pCheck->mxErr ) return;
  pCheck->mxErr--;
  pCheck->nErr++;
  va_start(ap, zFormat);
  if( pCheck->errMsg.nChar ){
    sqlite3StrAccumAppend(&pCheck->errMsg, "\n", 1);
  }
  if( pCheck->zPfx ){
    sqlite3_snprintf(sizeof(zBuf), zBuf, pCheck->zPfx, pCheck->v1, pCheck->v2);
    sqlite3StrAccumAppendAll(&pCheck->errMsg, zBuf);
  }
  sqlite3VXPrintf(&pCheck->errMsg, 1, zFormat, ap);
  va_end(ap);
  if( pCheck->errMsg.accError==STRACCUM_NOMEM ){
    pCheck->mallocFailed = 1;
  }
}







<








|
<







8696
8697
8698
8699
8700
8701
8702

8703
8704
8705
8706
8707
8708
8709
8710
8711

8712
8713
8714
8715
8716
8717
8718
*/
static void checkAppendMsg(
  IntegrityCk *pCheck,
  const char *zFormat,
  ...
){
  va_list ap;

  if( !pCheck->mxErr ) return;
  pCheck->mxErr--;
  pCheck->nErr++;
  va_start(ap, zFormat);
  if( pCheck->errMsg.nChar ){
    sqlite3StrAccumAppend(&pCheck->errMsg, "\n", 1);
  }
  if( pCheck->zPfx ){
    sqlite3XPrintf(&pCheck->errMsg, 0, pCheck->zPfx, pCheck->v1, pCheck->v2);

  }
  sqlite3VXPrintf(&pCheck->errMsg, 1, zFormat, ap);
  va_end(ap);
  if( pCheck->errMsg.accError==STRACCUM_NOMEM ){
    pCheck->mallocFailed = 1;
  }
}
Changes to src/build.c.
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
        pParse->okConstFactor = 0;
        for(i=0; i<pEL->nExpr; i++){
          sqlite3ExprCode(pParse, pEL->a[i].pExpr, pEL->a[i].u.iConstExprReg);
        }
      }

      /* Finally, jump back to the beginning of the executable code. */
      sqlite3VdbeAddOp2(v, OP_Goto, 0, 1);
    }
  }


  /* Get the VDBE program ready for execution
  */
  if( v && pParse->nErr==0 && !db->mallocFailed ){







|







217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
        pParse->okConstFactor = 0;
        for(i=0; i<pEL->nExpr; i++){
          sqlite3ExprCode(pParse, pEL->a[i].pExpr, pEL->a[i].u.iConstExprReg);
        }
      }

      /* Finally, jump back to the beginning of the executable code. */
      sqlite3VdbeGoto(v, 1);
    }
  }


  /* Get the VDBE program ready for execution
  */
  if( v && pParse->nErr==0 && !db->mallocFailed ){
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702

  /* Convert the OP_CreateTable opcode that would normally create the
  ** root-page for the table into an OP_CreateIndex opcode.  The index
  ** created will become the PRIMARY KEY index.
  */
  if( pParse->addrCrTab ){
    assert( v );
    sqlite3VdbeGetOp(v, pParse->addrCrTab)->opcode = OP_CreateIndex;
  }

  /* Locate the PRIMARY KEY index.  Or, if this table was originally
  ** an INTEGER PRIMARY KEY table, create a new PRIMARY KEY index. 
  */
  if( pTab->iPKey>=0 ){
    ExprList *pList;







|







1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702

  /* Convert the OP_CreateTable opcode that would normally create the
  ** root-page for the table into an OP_CreateIndex opcode.  The index
  ** created will become the PRIMARY KEY index.
  */
  if( pParse->addrCrTab ){
    assert( v );
    sqlite3VdbeChangeOpcode(v, pParse->addrCrTab, OP_CreateIndex);
  }

  /* Locate the PRIMARY KEY index.  Or, if this table was originally
  ** an INTEGER PRIMARY KEY table, create a new PRIMARY KEY index. 
  */
  if( pTab->iPKey>=0 ){
    ExprList *pList;
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731

    /* Bypass the creation of the PRIMARY KEY btree and the sqlite_master
    ** table entry. This is only required if currently generating VDBE
    ** code for a CREATE TABLE (not when parsing one as part of reading
    ** a database schema).  */
    if( v ){
      assert( db->init.busy==0 );
      sqlite3VdbeGetOp(v, pPk->tnum)->opcode = OP_Goto;
    }

    /*
    ** Remove all redundant columns from the PRIMARY KEY.  For example, change
    ** "PRIMARY KEY(a,b,a,b,c,b,c,d)" into just "PRIMARY KEY(a,b,c,d)".  Later
    ** code assumes the PRIMARY KEY contains no repeated columns.
    */







|







1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731

    /* Bypass the creation of the PRIMARY KEY btree and the sqlite_master
    ** table entry. This is only required if currently generating VDBE
    ** code for a CREATE TABLE (not when parsing one as part of reading
    ** a database schema).  */
    if( v ){
      assert( db->init.busy==0 );
      sqlite3VdbeChangeOpcode(v, pPk->tnum, OP_Goto);
    }

    /*
    ** Remove all redundant columns from the PRIMARY KEY.  For example, change
    ** "PRIMARY KEY(a,b,a,b,c,b,c,d)" into just "PRIMARY KEY(a,b,c,d)".  Later
    ** code assumes the PRIMARY KEY contains no repeated columns.
    */
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
      sqlite3DeleteTable(db, pSelTab);
      addrInsLoop = sqlite3VdbeAddOp1(v, OP_Yield, dest.iSDParm);
      VdbeCoverage(v);
      sqlite3VdbeAddOp3(v, OP_MakeRecord, dest.iSdst, dest.nSdst, regRec);
      sqlite3TableAffinity(v, p, 0);
      sqlite3VdbeAddOp2(v, OP_NewRowid, 1, regRowid);
      sqlite3VdbeAddOp3(v, OP_Insert, 1, regRec, regRowid);
      sqlite3VdbeAddOp2(v, OP_Goto, 0, addrInsLoop);
      sqlite3VdbeJumpHere(v, addrInsLoop);
      sqlite3VdbeAddOp1(v, OP_Close, 1);
    }

    /* Compute the complete text of the CREATE statement */
    if( pSelect ){
      zStmt = createTableStmt(db, p);







|







1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
      sqlite3DeleteTable(db, pSelTab);
      addrInsLoop = sqlite3VdbeAddOp1(v, OP_Yield, dest.iSDParm);
      VdbeCoverage(v);
      sqlite3VdbeAddOp3(v, OP_MakeRecord, dest.iSdst, dest.nSdst, regRec);
      sqlite3TableAffinity(v, p, 0);
      sqlite3VdbeAddOp2(v, OP_NewRowid, 1, regRowid);
      sqlite3VdbeAddOp3(v, OP_Insert, 1, regRec, regRowid);
      sqlite3VdbeGoto(v, addrInsLoop);
      sqlite3VdbeJumpHere(v, addrInsLoop);
      sqlite3VdbeAddOp1(v, OP_Close, 1);
    }

    /* Compute the complete text of the CREATE statement */
    if( pSelect ){
      zStmt = createTableStmt(db, p);
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
                    (char *)pKey, P4_KEYINFO);
  sqlite3VdbeChangeP5(v, OPFLAG_BULKCSR|((memRootPage>=0)?OPFLAG_P2ISREG:0));

  addr1 = sqlite3VdbeAddOp2(v, OP_SorterSort, iSorter, 0); VdbeCoverage(v);
  assert( pKey!=0 || db->mallocFailed || pParse->nErr );
  if( IsUniqueIndex(pIndex) && pKey!=0 ){
    int j2 = sqlite3VdbeCurrentAddr(v) + 3;
    sqlite3VdbeAddOp2(v, OP_Goto, 0, j2);
    addr2 = sqlite3VdbeCurrentAddr(v);
    sqlite3VdbeAddOp4Int(v, OP_SorterCompare, iSorter, j2, regRecord,
                         pIndex->nKeyCol); VdbeCoverage(v);
    sqlite3UniqueConstraint(pParse, OE_Abort, pIndex);
  }else{
    addr2 = sqlite3VdbeCurrentAddr(v);
  }







|







2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
                    (char *)pKey, P4_KEYINFO);
  sqlite3VdbeChangeP5(v, OPFLAG_BULKCSR|((memRootPage>=0)?OPFLAG_P2ISREG:0));

  addr1 = sqlite3VdbeAddOp2(v, OP_SorterSort, iSorter, 0); VdbeCoverage(v);
  assert( pKey!=0 || db->mallocFailed || pParse->nErr );
  if( IsUniqueIndex(pIndex) && pKey!=0 ){
    int j2 = sqlite3VdbeCurrentAddr(v) + 3;
    sqlite3VdbeGoto(v, j2);
    addr2 = sqlite3VdbeCurrentAddr(v);
    sqlite3VdbeAddOp4Int(v, OP_SorterCompare, iSorter, j2, regRecord,
                         pIndex->nKeyCol); VdbeCoverage(v);
    sqlite3UniqueConstraint(pParse, OE_Abort, pIndex);
  }else{
    addr2 = sqlite3VdbeCurrentAddr(v);
  }
Changes to src/delete.c.
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
    }
  
    /* End of the WHERE loop */
    sqlite3WhereEnd(pWInfo);
    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.







|







453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
    }
  
    /* End of the WHERE loop */
    sqlite3WhereEnd(pWInfo);
    if( okOnePass ){
      /* Bypass the delete logic below if the WHERE loop found zero rows */
      addrBypass = sqlite3VdbeMakeLabel(v);
      sqlite3VdbeGoto(v, 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.
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
    /* End of the loop over all rowids/primary-keys. */
    if( okOnePass ){
      sqlite3VdbeResolveLabel(v, addrBypass);
    }else if( pPk ){
      sqlite3VdbeAddOp2(v, OP_Next, iEphCur, addrLoop+1); VdbeCoverage(v);
      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) ){
      if( !pPk ) sqlite3VdbeAddOp1(v, OP_Close, iDataCur);
      for(i=0, pIdx=pTab->pIndex; pIdx; i++, pIdx=pIdx->pNext){







|







515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
    /* End of the loop over all rowids/primary-keys. */
    if( okOnePass ){
      sqlite3VdbeResolveLabel(v, addrBypass);
    }else if( pPk ){
      sqlite3VdbeAddOp2(v, OP_Next, iEphCur, addrLoop+1); VdbeCoverage(v);
      sqlite3VdbeJumpHere(v, addrLoop);
    }else{
      sqlite3VdbeGoto(v, addrLoop);
      sqlite3VdbeJumpHere(v, addrLoop);
    }     
  
    /* Close the cursors open on the table and its indexes. */
    if( !isView && !IsVirtual(pTab) ){
      if( !pPk ) sqlite3VdbeAddOp1(v, OP_Close, iDataCur);
      for(i=0, pIdx=pTab->pIndex; pIdx; i++, pIdx=pIdx->pNext){
Changes to src/expr.c.
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
                          (void*)pColl, P4_COLLSEQ); VdbeCoverage(v);
        sqlite3VdbeChangeP5(v, affinity | SQLITE_JUMPIFNULL);
      }
      sqlite3ReleaseTempReg(pParse, regToFree);
    }
    if( regCkNull ){
      sqlite3VdbeAddOp2(v, OP_IsNull, regCkNull, destIfNull); VdbeCoverage(v);
      sqlite3VdbeAddOp2(v, OP_Goto, 0, destIfFalse);
    }
    sqlite3VdbeResolveLabel(v, labelOk);
    sqlite3ReleaseTempReg(pParse, regCkNull);
  }else{
  
    /* If the LHS is NULL, then the result is either false or NULL depending
    ** on whether the RHS is empty or not, respectively.
    */
    if( sqlite3ExprCanBeNull(pExpr->pLeft) ){
      if( destIfNull==destIfFalse ){
        /* Shortcut for the common case where the false and NULL outcomes are
        ** the same. */
        sqlite3VdbeAddOp2(v, OP_IsNull, r1, destIfNull); VdbeCoverage(v);
      }else{
        int addr1 = sqlite3VdbeAddOp1(v, OP_NotNull, r1); VdbeCoverage(v);
        sqlite3VdbeAddOp2(v, OP_Rewind, pExpr->iTable, destIfFalse);
        VdbeCoverage(v);
        sqlite3VdbeAddOp2(v, OP_Goto, 0, destIfNull);
        sqlite3VdbeJumpHere(v, addr1);
      }
    }
  
    if( eType==IN_INDEX_ROWID ){
      /* In this case, the RHS is the ROWID of table b-tree
      */







|

















|







2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
                          (void*)pColl, P4_COLLSEQ); VdbeCoverage(v);
        sqlite3VdbeChangeP5(v, affinity | SQLITE_JUMPIFNULL);
      }
      sqlite3ReleaseTempReg(pParse, regToFree);
    }
    if( regCkNull ){
      sqlite3VdbeAddOp2(v, OP_IsNull, regCkNull, destIfNull); VdbeCoverage(v);
      sqlite3VdbeGoto(v, destIfFalse);
    }
    sqlite3VdbeResolveLabel(v, labelOk);
    sqlite3ReleaseTempReg(pParse, regCkNull);
  }else{
  
    /* If the LHS is NULL, then the result is either false or NULL depending
    ** on whether the RHS is empty or not, respectively.
    */
    if( sqlite3ExprCanBeNull(pExpr->pLeft) ){
      if( destIfNull==destIfFalse ){
        /* Shortcut for the common case where the false and NULL outcomes are
        ** the same. */
        sqlite3VdbeAddOp2(v, OP_IsNull, r1, destIfNull); VdbeCoverage(v);
      }else{
        int addr1 = sqlite3VdbeAddOp1(v, OP_NotNull, r1); VdbeCoverage(v);
        sqlite3VdbeAddOp2(v, OP_Rewind, pExpr->iTable, destIfFalse);
        VdbeCoverage(v);
        sqlite3VdbeGoto(v, destIfNull);
        sqlite3VdbeJumpHere(v, addr1);
      }
    }
  
    if( eType==IN_INDEX_ROWID ){
      /* In this case, the RHS is the ROWID of table b-tree
      */
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
        ** answer is NULL if the RHS contains NULLs and the answer is
        ** FALSE if the RHS is NULL-free.
        */
        j1 = sqlite3VdbeAddOp4Int(v, OP_Found, pExpr->iTable, 0, r1, 1);
        VdbeCoverage(v);
        sqlite3VdbeAddOp2(v, OP_IsNull, rRhsHasNull, destIfNull);
        VdbeCoverage(v);
        sqlite3VdbeAddOp2(v, OP_Goto, 0, destIfFalse);
        sqlite3VdbeJumpHere(v, j1);
      }
    }
  }
  sqlite3ReleaseTempReg(pParse, r1);
  sqlite3ExprCachePop(pParse);
  VdbeComment((v, "end IN expr"));







|







2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
        ** answer is NULL if the RHS contains NULLs and the answer is
        ** FALSE if the RHS is NULL-free.
        */
        j1 = sqlite3VdbeAddOp4Int(v, OP_Found, pExpr->iTable, 0, r1, 1);
        VdbeCoverage(v);
        sqlite3VdbeAddOp2(v, OP_IsNull, rRhsHasNull, destIfNull);
        VdbeCoverage(v);
        sqlite3VdbeGoto(v, destIfFalse);
        sqlite3VdbeJumpHere(v, j1);
      }
    }
  }
  sqlite3ReleaseTempReg(pParse, r1);
  sqlite3ExprCachePop(pParse);
  VdbeComment((v, "end IN expr"));
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
      assert( !ExprHasProperty(pExpr, EP_IntValue) );
      codeReal(v, pExpr->u.zToken, 0, target);
      break;
    }
#endif
    case TK_STRING: {
      assert( !ExprHasProperty(pExpr, EP_IntValue) );
      sqlite3VdbeAddOp4(v, OP_String8, 0, target, 0, pExpr->u.zToken, 0);
      break;
    }
    case TK_NULL: {
      sqlite3VdbeAddOp2(v, OP_Null, 0, target);
      break;
    }
#ifndef SQLITE_OMIT_BLOB_LITERAL







|







2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
      assert( !ExprHasProperty(pExpr, EP_IntValue) );
      codeReal(v, pExpr->u.zToken, 0, target);
      break;
    }
#endif
    case TK_STRING: {
      assert( !ExprHasProperty(pExpr, EP_IntValue) );
      sqlite3VdbeLoadString(v, target, pExpr->u.zToken);
      break;
    }
    case TK_NULL: {
      sqlite3VdbeAddOp2(v, OP_Null, 0, target);
      break;
    }
#ifndef SQLITE_OMIT_BLOB_LITERAL
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
          pTest = aListelem[i].pExpr;
        }
        nextCase = sqlite3VdbeMakeLabel(v);
        testcase( pTest->op==TK_COLUMN );
        sqlite3ExprIfFalse(pParse, pTest, nextCase, SQLITE_JUMPIFNULL);
        testcase( aListelem[i+1].pExpr->op==TK_COLUMN );
        sqlite3ExprCode(pParse, aListelem[i+1].pExpr, target);
        sqlite3VdbeAddOp2(v, OP_Goto, 0, endLabel);
        sqlite3ExprCachePop(pParse);
        sqlite3VdbeResolveLabel(v, nextCase);
      }
      if( (nExpr&1)!=0 ){
        sqlite3ExprCachePush(pParse);
        sqlite3ExprCode(pParse, pEList->a[nExpr-1].pExpr, target);
        sqlite3ExprCachePop(pParse);







|







3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
          pTest = aListelem[i].pExpr;
        }
        nextCase = sqlite3VdbeMakeLabel(v);
        testcase( pTest->op==TK_COLUMN );
        sqlite3ExprIfFalse(pParse, pTest, nextCase, SQLITE_JUMPIFNULL);
        testcase( aListelem[i+1].pExpr->op==TK_COLUMN );
        sqlite3ExprCode(pParse, aListelem[i+1].pExpr, target);
        sqlite3VdbeGoto(v, endLabel);
        sqlite3ExprCachePop(pParse);
        sqlite3VdbeResolveLabel(v, nextCase);
      }
      if( (nExpr&1)!=0 ){
        sqlite3ExprCachePush(pParse);
        sqlite3ExprCode(pParse, pEList->a[nExpr-1].pExpr, target);
        sqlite3ExprCachePop(pParse);
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
      break;
    }
#ifndef SQLITE_OMIT_SUBQUERY
    case TK_IN: {
      int destIfFalse = sqlite3VdbeMakeLabel(v);
      int destIfNull = jumpIfNull ? dest : destIfFalse;
      sqlite3ExprCodeIN(pParse, pExpr, destIfFalse, destIfNull);
      sqlite3VdbeAddOp2(v, OP_Goto, 0, dest);
      sqlite3VdbeResolveLabel(v, destIfFalse);
      break;
    }
#endif
    default: {
      if( exprAlwaysTrue(pExpr) ){
        sqlite3VdbeAddOp2(v, OP_Goto, 0, dest);
      }else if( exprAlwaysFalse(pExpr) ){
        /* No-op */
      }else{
        r1 = sqlite3ExprCodeTemp(pParse, pExpr, &regFree1);
        sqlite3VdbeAddOp3(v, OP_If, r1, dest, jumpIfNull!=0);
        VdbeCoverage(v);
        testcase( regFree1==0 );







|






|







3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
      break;
    }
#ifndef SQLITE_OMIT_SUBQUERY
    case TK_IN: {
      int destIfFalse = sqlite3VdbeMakeLabel(v);
      int destIfNull = jumpIfNull ? dest : destIfFalse;
      sqlite3ExprCodeIN(pParse, pExpr, destIfFalse, destIfNull);
      sqlite3VdbeGoto(v, dest);
      sqlite3VdbeResolveLabel(v, destIfFalse);
      break;
    }
#endif
    default: {
      if( exprAlwaysTrue(pExpr) ){
        sqlite3VdbeGoto(v, dest);
      }else if( exprAlwaysFalse(pExpr) ){
        /* No-op */
      }else{
        r1 = sqlite3ExprCodeTemp(pParse, pExpr, &regFree1);
        sqlite3VdbeAddOp3(v, OP_If, r1, dest, jumpIfNull!=0);
        VdbeCoverage(v);
        testcase( regFree1==0 );
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
        sqlite3VdbeResolveLabel(v, destIfNull);
      }
      break;
    }
#endif
    default: {
      if( exprAlwaysFalse(pExpr) ){
        sqlite3VdbeAddOp2(v, OP_Goto, 0, dest);
      }else if( exprAlwaysTrue(pExpr) ){
        /* no-op */
      }else{
        r1 = sqlite3ExprCodeTemp(pParse, pExpr, &regFree1);
        sqlite3VdbeAddOp3(v, OP_IfNot, r1, dest, jumpIfNull!=0);
        VdbeCoverage(v);
        testcase( regFree1==0 );







|







3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
        sqlite3VdbeResolveLabel(v, destIfNull);
      }
      break;
    }
#endif
    default: {
      if( exprAlwaysFalse(pExpr) ){
        sqlite3VdbeGoto(v, dest);
      }else if( exprAlwaysTrue(pExpr) ){
        /* no-op */
      }else{
        r1 = sqlite3ExprCodeTemp(pParse, pExpr, &regFree1);
        sqlite3VdbeAddOp3(v, OP_IfNot, r1, dest, jumpIfNull!=0);
        VdbeCoverage(v);
        testcase( regFree1==0 );
Changes to src/fkey.c.
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
      if( pTab==pFKey->pFrom && nIncr==1 ){
        sqlite3VdbeAddOp3(v, OP_Eq, regData, iOk, regTemp); VdbeCoverage(v);
        sqlite3VdbeChangeP5(v, SQLITE_NOTNULL);
      }
  
      sqlite3OpenTable(pParse, iCur, iDb, pTab, OP_OpenRead);
      sqlite3VdbeAddOp3(v, OP_NotExists, iCur, 0, regTemp); VdbeCoverage(v);
      sqlite3VdbeAddOp2(v, OP_Goto, 0, iOk);
      sqlite3VdbeJumpHere(v, sqlite3VdbeCurrentAddr(v)-2);
      sqlite3VdbeJumpHere(v, iMustBeInt);
      sqlite3ReleaseTempReg(pParse, regTemp);
    }else{
      int nCol = pFKey->nCol;
      int regTemp = sqlite3GetTempRange(pParse, nCol);
      int regRec = sqlite3GetTempReg(pParse);







|







370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
      if( pTab==pFKey->pFrom && nIncr==1 ){
        sqlite3VdbeAddOp3(v, OP_Eq, regData, iOk, regTemp); VdbeCoverage(v);
        sqlite3VdbeChangeP5(v, SQLITE_NOTNULL);
      }
  
      sqlite3OpenTable(pParse, iCur, iDb, pTab, OP_OpenRead);
      sqlite3VdbeAddOp3(v, OP_NotExists, iCur, 0, regTemp); VdbeCoverage(v);
      sqlite3VdbeGoto(v, iOk);
      sqlite3VdbeJumpHere(v, sqlite3VdbeCurrentAddr(v)-2);
      sqlite3VdbeJumpHere(v, iMustBeInt);
      sqlite3ReleaseTempReg(pParse, regTemp);
    }else{
      int nCol = pFKey->nCol;
      int regTemp = sqlite3GetTempRange(pParse, nCol);
      int regRec = sqlite3GetTempReg(pParse);
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
          if( pIdx->aiColumn[i]==pTab->iPKey ){
            /* The parent key is a composite key that includes the IPK column */
            iParent = regData;
          }
          sqlite3VdbeAddOp3(v, OP_Ne, iChild, iJump, iParent); VdbeCoverage(v);
          sqlite3VdbeChangeP5(v, SQLITE_JUMPIFNULL);
        }
        sqlite3VdbeAddOp2(v, OP_Goto, 0, iOk);
      }
  
      sqlite3VdbeAddOp4(v, OP_MakeRecord, regTemp, nCol, regRec,
                        sqlite3IndexAffinityStr(pParse->db,pIdx), nCol);
      sqlite3VdbeAddOp4Int(v, OP_Found, iCur, iOk, regRec, 0); VdbeCoverage(v);
  
      sqlite3ReleaseTempReg(pParse, regRec);







|







408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
          if( pIdx->aiColumn[i]==pTab->iPKey ){
            /* The parent key is a composite key that includes the IPK column */
            iParent = regData;
          }
          sqlite3VdbeAddOp3(v, OP_Ne, iChild, iJump, iParent); VdbeCoverage(v);
          sqlite3VdbeChangeP5(v, SQLITE_JUMPIFNULL);
        }
        sqlite3VdbeGoto(v, iOk);
      }
  
      sqlite3VdbeAddOp4(v, OP_MakeRecord, regTemp, nCol, regRec,
                        sqlite3IndexAffinityStr(pParse->db,pIdx), nCol);
      sqlite3VdbeAddOp4Int(v, OP_Found, iCur, iOk, regRec, 0); VdbeCoverage(v);
  
      sqlite3ReleaseTempReg(pParse, regRec);
Changes to src/insert.c.
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
  for(p = pParse->pAinc; p; p = p->pNext){
    pDb = &db->aDb[p->iDb];
    memId = p->regCtr;
    assert( sqlite3SchemaMutexHeld(db, 0, pDb->pSchema) );
    sqlite3OpenTable(pParse, 0, p->iDb, pDb->pSchema->pSeqTab, OP_OpenRead);
    sqlite3VdbeAddOp3(v, OP_Null, 0, memId, memId+1);
    addr = sqlite3VdbeCurrentAddr(v);
    sqlite3VdbeAddOp4(v, OP_String8, 0, memId-1, 0, p->pTab->zName, 0);
    sqlite3VdbeAddOp2(v, OP_Rewind, 0, addr+9); VdbeCoverage(v);
    sqlite3VdbeAddOp3(v, OP_Column, 0, 0, memId);
    sqlite3VdbeAddOp3(v, OP_Ne, memId-1, addr+7, memId); VdbeCoverage(v);
    sqlite3VdbeChangeP5(v, SQLITE_JUMPIFNULL);
    sqlite3VdbeAddOp2(v, OP_Rowid, 0, memId+1);
    sqlite3VdbeAddOp3(v, OP_Column, 0, 1, memId);
    sqlite3VdbeAddOp2(v, OP_Goto, 0, addr+9);
    sqlite3VdbeAddOp2(v, OP_Next, 0, addr+2); VdbeCoverage(v);
    sqlite3VdbeAddOp2(v, OP_Integer, 0, memId);
    sqlite3VdbeAddOp0(v, OP_Close);
  }
}

/*







|






|







266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
  for(p = pParse->pAinc; p; p = p->pNext){
    pDb = &db->aDb[p->iDb];
    memId = p->regCtr;
    assert( sqlite3SchemaMutexHeld(db, 0, pDb->pSchema) );
    sqlite3OpenTable(pParse, 0, p->iDb, pDb->pSchema->pSeqTab, OP_OpenRead);
    sqlite3VdbeAddOp3(v, OP_Null, 0, memId, memId+1);
    addr = sqlite3VdbeCurrentAddr(v);
    sqlite3VdbeLoadString(v, memId-1, p->pTab->zName);
    sqlite3VdbeAddOp2(v, OP_Rewind, 0, addr+9); VdbeCoverage(v);
    sqlite3VdbeAddOp3(v, OP_Column, 0, 0, memId);
    sqlite3VdbeAddOp3(v, OP_Ne, memId-1, addr+7, memId); VdbeCoverage(v);
    sqlite3VdbeChangeP5(v, SQLITE_JUMPIFNULL);
    sqlite3VdbeAddOp2(v, OP_Rowid, 0, memId+1);
    sqlite3VdbeAddOp3(v, OP_Column, 0, 1, memId);
    sqlite3VdbeGoto(v, addr+9);
    sqlite3VdbeAddOp2(v, OP_Next, 0, addr+2); VdbeCoverage(v);
    sqlite3VdbeAddOp2(v, OP_Integer, 0, memId);
    sqlite3VdbeAddOp0(v, OP_Close);
  }
}

/*
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
      regRec = sqlite3GetTempReg(pParse);
      regTempRowid = sqlite3GetTempReg(pParse);
      sqlite3VdbeAddOp2(v, OP_OpenEphemeral, srcTab, nColumn);
      addrL = sqlite3VdbeAddOp1(v, OP_Yield, dest.iSDParm); VdbeCoverage(v);
      sqlite3VdbeAddOp3(v, OP_MakeRecord, regFromSelect, nColumn, regRec);
      sqlite3VdbeAddOp2(v, OP_NewRowid, srcTab, regTempRowid);
      sqlite3VdbeAddOp3(v, OP_Insert, srcTab, regRec, regTempRowid);
      sqlite3VdbeAddOp2(v, OP_Goto, 0, addrL);
      sqlite3VdbeJumpHere(v, addrL);
      sqlite3ReleaseTempReg(pParse, regRec);
      sqlite3ReleaseTempReg(pParse, regTempRowid);
    }
  }else{
    /* This is the case if the data for the INSERT is coming from a 
    ** single-row VALUES clause







|







697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
      regRec = sqlite3GetTempReg(pParse);
      regTempRowid = sqlite3GetTempReg(pParse);
      sqlite3VdbeAddOp2(v, OP_OpenEphemeral, srcTab, nColumn);
      addrL = sqlite3VdbeAddOp1(v, OP_Yield, dest.iSDParm); VdbeCoverage(v);
      sqlite3VdbeAddOp3(v, OP_MakeRecord, regFromSelect, nColumn, regRec);
      sqlite3VdbeAddOp2(v, OP_NewRowid, srcTab, regTempRowid);
      sqlite3VdbeAddOp3(v, OP_Insert, srcTab, regRec, regTempRowid);
      sqlite3VdbeGoto(v, addrL);
      sqlite3VdbeJumpHere(v, addrL);
      sqlite3ReleaseTempReg(pParse, regRec);
      sqlite3ReleaseTempReg(pParse, regTempRowid);
    }
  }else{
    /* This is the case if the data for the INSERT is coming from a 
    ** single-row VALUES clause
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
  */
  sqlite3VdbeResolveLabel(v, endOfLoop);
  if( useTempTable ){
    sqlite3VdbeAddOp2(v, OP_Next, srcTab, addrCont); VdbeCoverage(v);
    sqlite3VdbeJumpHere(v, addrInsTop);
    sqlite3VdbeAddOp1(v, OP_Close, srcTab);
  }else if( pSelect ){
    sqlite3VdbeAddOp2(v, OP_Goto, 0, addrCont);
    sqlite3VdbeJumpHere(v, addrInsTop);
  }

  if( !IsVirtual(pTab) && !isView ){
    /* Close all tables opened */
    if( iDataCur<iIdxCur ) sqlite3VdbeAddOp1(v, OP_Close, iDataCur);
    for(idx=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, idx++){







|







998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
  */
  sqlite3VdbeResolveLabel(v, endOfLoop);
  if( useTempTable ){
    sqlite3VdbeAddOp2(v, OP_Next, srcTab, addrCont); VdbeCoverage(v);
    sqlite3VdbeJumpHere(v, addrInsTop);
    sqlite3VdbeAddOp1(v, OP_Close, srcTab);
  }else if( pSelect ){
    sqlite3VdbeGoto(v, addrCont);
    sqlite3VdbeJumpHere(v, addrInsTop);
  }

  if( !IsVirtual(pTab) && !isView ){
    /* Close all tables opened */
    if( iDataCur<iIdxCur ) sqlite3VdbeAddOp1(v, OP_Close, iDataCur);
    for(idx=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, idx++){
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
    ExprList *pCheck = pTab->pCheck;
    pParse->ckBase = regNewData+1;
    onError = overrideError!=OE_Default ? overrideError : OE_Abort;
    for(i=0; i<pCheck->nExpr; i++){
      int allOk = sqlite3VdbeMakeLabel(v);
      sqlite3ExprIfTrue(pParse, pCheck->a[i].pExpr, allOk, SQLITE_JUMPIFNULL);
      if( onError==OE_Ignore ){
        sqlite3VdbeAddOp2(v, OP_Goto, 0, ignoreDest);
      }else{
        char *zName = pCheck->a[i].zName;
        if( zName==0 ) zName = pTab->zName;
        if( onError==OE_Replace ) onError = OE_Abort; /* IMP: R-15569-63625 */
        sqlite3HaltConstraint(pParse, SQLITE_CONSTRAINT_CHECK,
                              onError, zName, P4_TRANSIENT,
                              P5_ConstraintCheck);







|







1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
    ExprList *pCheck = pTab->pCheck;
    pParse->ckBase = regNewData+1;
    onError = overrideError!=OE_Default ? overrideError : OE_Abort;
    for(i=0; i<pCheck->nExpr; i++){
      int allOk = sqlite3VdbeMakeLabel(v);
      sqlite3ExprIfTrue(pParse, pCheck->a[i].pExpr, allOk, SQLITE_JUMPIFNULL);
      if( onError==OE_Ignore ){
        sqlite3VdbeGoto(v, ignoreDest);
      }else{
        char *zName = pCheck->a[i].zName;
        if( zName==0 ) zName = pTab->zName;
        if( onError==OE_Replace ) onError = OE_Abort; /* IMP: R-15569-63625 */
        sqlite3HaltConstraint(pParse, SQLITE_CONSTRAINT_CHECK,
                              onError, zName, P4_TRANSIENT,
                              P5_ConstraintCheck);
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
          sqlite3GenerateRowIndexDelete(pParse, pTab, iDataCur, iIdxCur, 0);
        }
        seenReplace = 1;
        break;
      }
      case OE_Ignore: {
        /*assert( seenReplace==0 );*/
        sqlite3VdbeAddOp2(v, OP_Goto, 0, ignoreDest);
        break;
      }
    }
    sqlite3VdbeResolveLabel(v, addrRowidOk);
    if( ipkTop ){
      ipkBottom = sqlite3VdbeAddOp0(v, OP_Goto);
      sqlite3VdbeJumpHere(v, ipkTop);







|







1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
          sqlite3GenerateRowIndexDelete(pParse, pTab, iDataCur, iIdxCur, 0);
        }
        seenReplace = 1;
        break;
      }
      case OE_Ignore: {
        /*assert( seenReplace==0 );*/
        sqlite3VdbeGoto(v, ignoreDest);
        break;
      }
    }
    sqlite3VdbeResolveLabel(v, addrRowidOk);
    if( ipkTop ){
      ipkBottom = sqlite3VdbeAddOp0(v, OP_Goto);
      sqlite3VdbeJumpHere(v, ipkTop);
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
      case OE_Rollback:
      case OE_Abort:
      case OE_Fail: {
        sqlite3UniqueConstraint(pParse, onError, pIdx);
        break;
      }
      case OE_Ignore: {
        sqlite3VdbeAddOp2(v, OP_Goto, 0, ignoreDest);
        break;
      }
      default: {
        Trigger *pTrigger = 0;
        assert( onError==OE_Replace );
        sqlite3MultiWrite(pParse);
        if( db->flags&SQLITE_RecTriggers ){
          pTrigger = sqlite3TriggersExist(pParse, pTab, TK_DELETE, 0, 0);
        }
        sqlite3GenerateRowDelete(pParse, pTab, pTrigger, iDataCur, iIdxCur,
                                 regR, nPkField, 0, OE_Replace, pIdx==pPk);
        seenReplace = 1;
        break;
      }
    }
    sqlite3VdbeResolveLabel(v, addrUniqueOk);
    sqlite3ReleaseTempRange(pParse, regIdx, pIdx->nColumn);
    if( regR!=regIdx ) sqlite3ReleaseTempRange(pParse, regR, nPkField);
  }
  if( ipkTop ){
    sqlite3VdbeAddOp2(v, OP_Goto, 0, ipkTop+1);
    sqlite3VdbeJumpHere(v, ipkBottom);
  }
  
  *pbMayReplace = seenReplace;
  VdbeModuleComment((v, "END: GenCnstCks(%d)", seenReplace));
}








|




















|







1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
      case OE_Rollback:
      case OE_Abort:
      case OE_Fail: {
        sqlite3UniqueConstraint(pParse, onError, pIdx);
        break;
      }
      case OE_Ignore: {
        sqlite3VdbeGoto(v, ignoreDest);
        break;
      }
      default: {
        Trigger *pTrigger = 0;
        assert( onError==OE_Replace );
        sqlite3MultiWrite(pParse);
        if( db->flags&SQLITE_RecTriggers ){
          pTrigger = sqlite3TriggersExist(pParse, pTab, TK_DELETE, 0, 0);
        }
        sqlite3GenerateRowDelete(pParse, pTab, pTrigger, iDataCur, iIdxCur,
                                 regR, nPkField, 0, OE_Replace, pIdx==pPk);
        seenReplace = 1;
        break;
      }
    }
    sqlite3VdbeResolveLabel(v, addrUniqueOk);
    sqlite3ReleaseTempRange(pParse, regIdx, pIdx->nColumn);
    if( regR!=regIdx ) sqlite3ReleaseTempRange(pParse, regR, nPkField);
  }
  if( ipkTop ){
    sqlite3VdbeGoto(v, ipkTop+1);
    sqlite3VdbeJumpHere(v, ipkBottom);
  }
  
  *pbMayReplace = seenReplace;
  VdbeModuleComment((v, "END: GenCnstCks(%d)", seenReplace));
}

1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
    **
    ** (2) The destination has a unique index.  (The xfer optimization 
    **     is unable to test uniqueness.)
    **
    ** (3) onError is something other than OE_Abort and OE_Rollback.
    */
    addr1 = sqlite3VdbeAddOp2(v, OP_Rewind, iDest, 0); VdbeCoverage(v);
    emptyDestTest = sqlite3VdbeAddOp2(v, OP_Goto, 0, 0);
    sqlite3VdbeJumpHere(v, addr1);
  }
  if( HasRowid(pSrc) ){
    sqlite3OpenTable(pParse, iSrc, iDbSrc, pSrc, OP_OpenRead);
    emptySrcTest = sqlite3VdbeAddOp2(v, OP_Rewind, iSrc, 0); VdbeCoverage(v);
    if( pDest->iPKey>=0 ){
      addr1 = sqlite3VdbeAddOp2(v, OP_Rowid, iSrc, regRowid);







|







1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
    **
    ** (2) The destination has a unique index.  (The xfer optimization 
    **     is unable to test uniqueness.)
    **
    ** (3) onError is something other than OE_Abort and OE_Rollback.
    */
    addr1 = sqlite3VdbeAddOp2(v, OP_Rewind, iDest, 0); VdbeCoverage(v);
    emptyDestTest = sqlite3VdbeAddOp0(v, OP_Goto);
    sqlite3VdbeJumpHere(v, addr1);
  }
  if( HasRowid(pSrc) ){
    sqlite3OpenTable(pParse, iSrc, iDbSrc, pSrc, OP_OpenRead);
    emptySrcTest = sqlite3VdbeAddOp2(v, OP_Rewind, iSrc, 0); VdbeCoverage(v);
    if( pDest->iPKey>=0 ){
      addr1 = sqlite3VdbeAddOp2(v, OP_Rowid, iSrc, regRowid);
Changes to src/malloc.c.
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96

97
98
99

100
101
102
103
104
105
106
107

108




109










110
111
112
113
114
115


116
117


118
119
120
121

122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147

148
149
150

151
152
153
154
155
156
157
158
159
160
} ScratchFreeslot;

/*
** State information local to the memory allocation subsystem.
*/
static SQLITE_WSD struct Mem0Global {
  sqlite3_mutex *mutex;         /* Mutex to serialize access */

  /*
  ** The alarm callback and its arguments.  The mem0.mutex lock will
  ** be held while the callback is running.  Recursive calls into
  ** the memory subsystem are allowed, but no new callbacks will be
  ** issued.
  */
  sqlite3_int64 alarmThreshold;
  void (*alarmCallback)(void*, sqlite3_int64,int);
  void *alarmArg;

  /*
  ** Pointers to the end of sqlite3GlobalConfig.pScratch memory
  ** (so that a range test can be used to determine if an allocation
  ** being freed came from pScratch) and a pointer to the list of
  ** unused scratch allocations.
  */
  void *pScratchEnd;
  ScratchFreeslot *pScratchFree;
  u32 nScratchFree;

  /*
  ** True if heap is nearly "full" where "full" is defined by the
  ** sqlite3_soft_heap_limit() setting.
  */
  int nearlyFull;
} mem0 = { 0, 0, 0, 0, 0, 0, 0, 0 };

#define mem0 GLOBAL(struct Mem0Global, mem0)

/*
** Return the memory allocator mutex. sqlite3_status() needs it.
*/
sqlite3_mutex *sqlite3MallocMutex(void){
  return mem0.mutex;
}

/*
** This routine runs when the memory allocator sees that the
** total memory allocation is about to exceed the soft heap
** limit.
*/
static void softHeapLimitEnforcer(
  void *NotUsed, 
  sqlite3_int64 NotUsed2,
  int allocSize
){
  UNUSED_PARAMETER2(NotUsed, NotUsed2);
  sqlite3_release_memory(allocSize);

}

/*

** Change the alarm callback
*/
static int sqlite3MemoryAlarm(
  void(*xCallback)(void *pArg, sqlite3_int64 used,int N),
  void *pArg,
  sqlite3_int64 iThreshold
){
  sqlite3_int64 nUsed;

  sqlite3_mutex_enter(mem0.mutex);




  mem0.alarmCallback = xCallback;










  mem0.alarmArg = pArg;
  mem0.alarmThreshold = iThreshold;
  nUsed = sqlite3StatusValue(SQLITE_STATUS_MEMORY_USED);
  mem0.nearlyFull = (iThreshold>0 && iThreshold<=nUsed);
  sqlite3_mutex_leave(mem0.mutex);
  return SQLITE_OK;


}



#ifndef SQLITE_OMIT_DEPRECATED
/*
** Deprecated external interface.  Internal/core SQLite code
** should call sqlite3MemoryAlarm.

*/
int sqlite3_memory_alarm(
  void(*xCallback)(void *pArg, sqlite3_int64 used,int N),
  void *pArg,
  sqlite3_int64 iThreshold
){
  return sqlite3MemoryAlarm(xCallback, pArg, iThreshold);
}
#endif

/*
** Set the soft heap-size limit for the library. Passing a zero or 
** negative value indicates no limit.
*/
sqlite3_int64 sqlite3_soft_heap_limit64(sqlite3_int64 n){
  sqlite3_int64 priorLimit;
  sqlite3_int64 excess;
#ifndef SQLITE_OMIT_AUTOINIT
  int rc = sqlite3_initialize();
  if( rc ) return -1;
#endif
  sqlite3_mutex_enter(mem0.mutex);
  priorLimit = mem0.alarmThreshold;
  sqlite3_mutex_leave(mem0.mutex);
  if( n<0 ) return priorLimit;
  if( n>0 ){

    sqlite3MemoryAlarm(softHeapLimitEnforcer, 0, n);
  }else{
    sqlite3MemoryAlarm(0, 0, 0);

  }
  excess = sqlite3_memory_used() - n;
  if( excess>0 ) sqlite3_release_memory((int)(excess & 0x7fffffff));
  return priorLimit;
}
void sqlite3_soft_heap_limit(int n){
  if( n<0 ) n = 0;
  sqlite3_soft_heap_limit64(n);
}








<
<
<
<
<
<
<
|
<
<
















|











|
<
<

<
<
|
<
<
<
|
>



>
|

<
|
|
|
<
|
>

>
>
>
>
|
>
>
>
>
>
>
>
>
>
>
|
|
<
|
|
<
>
>
|
|
>
>


|
<
>






|









<






<
<

>
|
|
|
>

|
<







41
42
43
44
45
46
47







48


49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77


78


79



80
81
82
83
84
85
86
87

88
89
90

91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110

111
112

113
114
115
116
117
118
119
120
121

122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138

139
140
141
142
143
144


145
146
147
148
149
150
151
152

153
154
155
156
157
158
159
} ScratchFreeslot;

/*
** State information local to the memory allocation subsystem.
*/
static SQLITE_WSD struct Mem0Global {
  sqlite3_mutex *mutex;         /* Mutex to serialize access */







  sqlite3_int64 alarmThreshold;  /* The soft heap limit */



  /*
  ** Pointers to the end of sqlite3GlobalConfig.pScratch memory
  ** (so that a range test can be used to determine if an allocation
  ** being freed came from pScratch) and a pointer to the list of
  ** unused scratch allocations.
  */
  void *pScratchEnd;
  ScratchFreeslot *pScratchFree;
  u32 nScratchFree;

  /*
  ** True if heap is nearly "full" where "full" is defined by the
  ** sqlite3_soft_heap_limit() setting.
  */
  int nearlyFull;
} mem0 = { 0, 0, 0, 0, 0, 0 };

#define mem0 GLOBAL(struct Mem0Global, mem0)

/*
** Return the memory allocator mutex. sqlite3_status() needs it.
*/
sqlite3_mutex *sqlite3MallocMutex(void){
  return mem0.mutex;
}

/*
** Return the amount of memory currently in use.


*/


static sqlite3_int64 memInUse(void){



  assert( sqlite3_mutex_held(mem0.mutex) );
  return sqlite3StatusValue(SQLITE_STATUS_MEMORY_USED);
}

/*
** Called when the soft heap limit is exceeded for an allocation
** of nBytes.
*/

#ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT
static void sqlite3HeapLimitExceeded(int nByte){
  sqlite3_int64 excess = memInUse() + nByte - mem0.alarmThreshold;

  sqlite3_mutex_leave(mem0.mutex);
  sqlite3_release_memory((int)(excess & 0x7fffffff));
  sqlite3_mutex_enter(mem0.mutex);
}
#else
# define sqlite3HeapLimitExceeded(X)  /* no-op */
#endif

/*
** Check to see if increasing the total memory usage by nNew bytes
** will exceed the soft heap limit.  
**
** If the soft heap limit is exceeded, set the mem0.nearlyFull flag
** and invoke sqlite3HeapLimitExceeded() to try to free up some
** memory.
*/
static void sqlite3CheckSoftHeapLimit(int nNew){
  assert( sqlite3_mutex_held(mem0.mutex) );
  if( mem0.alarmThreshold>0 ){
    if( mem0.alarmThreshold-nNew >= memInUse() ){

      mem0.nearlyFull = 1;
      sqlite3HeapLimitExceeded(nNew);

    }else{
      mem0.nearlyFull = 0;
    }
  }
}

#ifndef SQLITE_OMIT_DEPRECATED
/*
** Deprecated external interface.  First deprecated 2007-11-05.  Changed

** into a no-op on 2015-09-02.
*/
int sqlite3_memory_alarm(
  void(*xCallback)(void *pArg, sqlite3_int64 used,int N),
  void *pArg,
  sqlite3_int64 iThreshold
){
  return SQLITE_OK;
}
#endif

/*
** Set the soft heap-size limit for the library. Passing a zero or 
** negative value indicates no limit.
*/
sqlite3_int64 sqlite3_soft_heap_limit64(sqlite3_int64 n){
  sqlite3_int64 priorLimit;

#ifndef SQLITE_OMIT_AUTOINIT
  int rc = sqlite3_initialize();
  if( rc ) return -1;
#endif
  sqlite3_mutex_enter(mem0.mutex);
  priorLimit = mem0.alarmThreshold;


  if( n>0 ){
    mem0.alarmThreshold = n;
    sqlite3CheckSoftHeapLimit(0);
  }else if( n==0 ){
    mem0.alarmThreshold = 0;
    mem0.nearlyFull = 0;
  }
  sqlite3_mutex_leave(mem0.mutex);

  return priorLimit;
}
void sqlite3_soft_heap_limit(int n){
  if( n<0 ) n = 0;
  sqlite3_soft_heap_limit64(n);
}

237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
*/
sqlite3_int64 sqlite3_memory_highwater(int resetFlag){
  sqlite3_int64 res, mx;
  sqlite3_status64(SQLITE_STATUS_MEMORY_USED, &res, &mx, resetFlag);
  return mx;
}

/*
** Trigger the alarm 
*/
static void sqlite3MallocAlarm(int nByte){
  void (*xCallback)(void*,sqlite3_int64,int);
  sqlite3_int64 nowUsed;
  void *pArg;
  if( mem0.alarmCallback==0 ) return;
  xCallback = mem0.alarmCallback;
  nowUsed = sqlite3StatusValue(SQLITE_STATUS_MEMORY_USED);
  pArg = mem0.alarmArg;
  mem0.alarmCallback = 0;
  sqlite3_mutex_leave(mem0.mutex);
  xCallback(pArg, nowUsed, nByte);
  sqlite3_mutex_enter(mem0.mutex);
  mem0.alarmCallback = xCallback;
  mem0.alarmArg = pArg;
}

/*
** Do a memory allocation with statistics and alarms.  Assume the
** lock is already held.
*/
static int mallocWithAlarm(int n, void **pp){
  int nFull;
  void *p;
  assert( sqlite3_mutex_held(mem0.mutex) );
  nFull = sqlite3GlobalConfig.m.xRoundup(n);
  sqlite3StatusSet(SQLITE_STATUS_MALLOC_SIZE, n);
  if( mem0.alarmCallback!=0 ){
    sqlite3_int64 nUsed = sqlite3StatusValue(SQLITE_STATUS_MEMORY_USED);
    if( nUsed >= mem0.alarmThreshold - nFull ){
      mem0.nearlyFull = 1;
      sqlite3MallocAlarm(nFull);
    }else{
      mem0.nearlyFull = 0;
    }
  }
  p = sqlite3GlobalConfig.m.xMalloc(nFull);
#ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT
  if( p==0 && mem0.alarmCallback ){
    sqlite3MallocAlarm(nFull);
    p = sqlite3GlobalConfig.m.xMalloc(nFull);
  }
#endif
  if( p ){
    nFull = sqlite3MallocSize(p);
    sqlite3StatusUp(SQLITE_STATUS_MEMORY_USED, nFull);
    sqlite3StatusUp(SQLITE_STATUS_MALLOC_COUNT, 1);







<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<










<
<
<
<
|
<
<
<
<


|
|







236
237
238
239
240
241
242



















243
244
245
246
247
248
249
250
251
252




253




254
255
256
257
258
259
260
261
262
263
264
*/
sqlite3_int64 sqlite3_memory_highwater(int resetFlag){
  sqlite3_int64 res, mx;
  sqlite3_status64(SQLITE_STATUS_MEMORY_USED, &res, &mx, resetFlag);
  return mx;
}




















/*
** Do a memory allocation with statistics and alarms.  Assume the
** lock is already held.
*/
static int mallocWithAlarm(int n, void **pp){
  int nFull;
  void *p;
  assert( sqlite3_mutex_held(mem0.mutex) );
  nFull = sqlite3GlobalConfig.m.xRoundup(n);
  sqlite3StatusSet(SQLITE_STATUS_MALLOC_SIZE, n);




  sqlite3CheckSoftHeapLimit(nFull);




  p = sqlite3GlobalConfig.m.xMalloc(nFull);
#ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT
  if( p==0 && mem0.alarmThreshold ){
    sqlite3HeapLimitExceeded(nFull);
    p = sqlite3GlobalConfig.m.xMalloc(nFull);
  }
#endif
  if( p ){
    nFull = sqlite3MallocSize(p);
    sqlite3StatusUp(SQLITE_STATUS_MEMORY_USED, nFull);
    sqlite3StatusUp(SQLITE_STATUS_MALLOC_COUNT, 1);
452
453
454
455
456
457
458


459
460
461
462
463
464
465
466
467
468
469


470
471


472
473
474
475
476
477
478
** sqlite3Malloc() or sqlite3_malloc().
*/
int sqlite3MallocSize(void *p){
  assert( sqlite3MemdebugHasType(p, MEMTYPE_HEAP) );
  return sqlite3GlobalConfig.m.xSize(p);
}
int sqlite3DbMallocSize(sqlite3 *db, void *p){


  if( db==0 ){
    assert( sqlite3MemdebugNoType(p, (u8)~MEMTYPE_HEAP) );
    assert( sqlite3MemdebugHasType(p, MEMTYPE_HEAP) );
    return sqlite3MallocSize(p);
  }else{
    assert( sqlite3_mutex_held(db->mutex) );
    if( isLookaside(db, p) ){
      return db->lookaside.sz;
    }else{
      assert( sqlite3MemdebugHasType(p, (MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) );
      assert( sqlite3MemdebugNoType(p, (u8)~(MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) );


      return sqlite3GlobalConfig.m.xSize(p);
    }


  }
}
sqlite3_uint64 sqlite3_msize(void *p){
  assert( sqlite3MemdebugNoType(p, (u8)~MEMTYPE_HEAP) );
  assert( sqlite3MemdebugHasType(p, MEMTYPE_HEAP) );
  return (sqlite3_uint64)sqlite3GlobalConfig.m.xSize(p);
}







>
>
|
|
|
<
<
<
<
<



>
>
|
|
>
>







424
425
426
427
428
429
430
431
432
433
434
435





436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
** sqlite3Malloc() or sqlite3_malloc().
*/
int sqlite3MallocSize(void *p){
  assert( sqlite3MemdebugHasType(p, MEMTYPE_HEAP) );
  return sqlite3GlobalConfig.m.xSize(p);
}
int sqlite3DbMallocSize(sqlite3 *db, void *p){
  if( db==0 || !isLookaside(db,p) ){
#if SQLITE_DEBUG
    if( db==0 ){
      assert( sqlite3MemdebugNoType(p, (u8)~MEMTYPE_HEAP) );
      assert( sqlite3MemdebugHasType(p, MEMTYPE_HEAP) );





    }else{
      assert( sqlite3MemdebugHasType(p, (MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) );
      assert( sqlite3MemdebugNoType(p, (u8)~(MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) );
    }
#endif
    return sqlite3GlobalConfig.m.xSize(p);
  }else{
    assert( sqlite3_mutex_held(db->mutex) );
    return db->lookaside.sz;
  }
}
sqlite3_uint64 sqlite3_msize(void *p){
  assert( sqlite3MemdebugNoType(p, (u8)~MEMTYPE_HEAP) );
  assert( sqlite3MemdebugHasType(p, MEMTYPE_HEAP) );
  return (sqlite3_uint64)sqlite3GlobalConfig.m.xSize(p);
}
560
561
562
563
564
565
566
567
568
569
570
571

572
573
574
575

576
577
578
579
580
581
582
  nNew = sqlite3GlobalConfig.m.xRoundup((int)nBytes);
  if( nOld==nNew ){
    pNew = pOld;
  }else if( sqlite3GlobalConfig.bMemstat ){
    sqlite3_mutex_enter(mem0.mutex);
    sqlite3StatusSet(SQLITE_STATUS_MALLOC_SIZE, (int)nBytes);
    nDiff = nNew - nOld;
    if( sqlite3StatusValue(SQLITE_STATUS_MEMORY_USED) >= 
          mem0.alarmThreshold-nDiff ){
      sqlite3MallocAlarm(nDiff);
    }
    pNew = sqlite3GlobalConfig.m.xRealloc(pOld, nNew);

    if( pNew==0 && mem0.alarmCallback ){
      sqlite3MallocAlarm((int)nBytes);
      pNew = sqlite3GlobalConfig.m.xRealloc(pOld, nNew);
    }

    if( pNew ){
      nNew = sqlite3MallocSize(pNew);
      sqlite3StatusUp(SQLITE_STATUS_MEMORY_USED, nNew-nOld);
    }
    sqlite3_mutex_leave(mem0.mutex);
  }else{
    pNew = sqlite3GlobalConfig.m.xRealloc(pOld, nNew);







<
<
|
<

>
|
|


>







533
534
535
536
537
538
539


540

541
542
543
544
545
546
547
548
549
550
551
552
553
554
  nNew = sqlite3GlobalConfig.m.xRoundup((int)nBytes);
  if( nOld==nNew ){
    pNew = pOld;
  }else if( sqlite3GlobalConfig.bMemstat ){
    sqlite3_mutex_enter(mem0.mutex);
    sqlite3StatusSet(SQLITE_STATUS_MALLOC_SIZE, (int)nBytes);
    nDiff = nNew - nOld;


    sqlite3CheckSoftHeapLimit(nDiff);

    pNew = sqlite3GlobalConfig.m.xRealloc(pOld, nNew);
#ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT
    if( pNew==0 && mem0.alarmThreshold ){
      sqlite3HeapLimitExceeded((int)nBytes);
      pNew = sqlite3GlobalConfig.m.xRealloc(pOld, nNew);
    }
#endif
    if( pNew ){
      nNew = sqlite3MallocSize(pNew);
      sqlite3StatusUp(SQLITE_STATUS_MEMORY_USED, nNew-nOld);
    }
    sqlite3_mutex_leave(mem0.mutex);
  }else{
    pNew = sqlite3GlobalConfig.m.xRealloc(pOld, nNew);
Changes to src/os_unix.c.
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
  int prior = 0;
#if (!defined(USE_PREAD) && !defined(USE_PREAD64))
  i64 newOffset;
#endif
  TIMER_START;
  assert( cnt==(cnt&0x1ffff) );
  assert( id->h>2 );
  cnt &= 0x1ffff;
  do{
#if defined(USE_PREAD)
    got = osPread(id->h, pBuf, cnt, offset);
    SimulateIOError( got = -1 );
#elif defined(USE_PREAD64)
    got = osPread64(id->h, pBuf, cnt, offset);
    SimulateIOError( got = -1 );







<







3142
3143
3144
3145
3146
3147
3148

3149
3150
3151
3152
3153
3154
3155
  int prior = 0;
#if (!defined(USE_PREAD) && !defined(USE_PREAD64))
  i64 newOffset;
#endif
  TIMER_START;
  assert( cnt==(cnt&0x1ffff) );
  assert( id->h>2 );

  do{
#if defined(USE_PREAD)
    got = osPread(id->h, pBuf, cnt, offset);
    SimulateIOError( got = -1 );
#elif defined(USE_PREAD64)
    got = osPread64(id->h, pBuf, cnt, offset);
    SimulateIOError( got = -1 );
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
      memcpy(&((u8 *)(pFile->pMapRegion))[offset], pBuf, nCopy);
      pBuf = &((u8 *)pBuf)[nCopy];
      amt -= nCopy;
      offset += nCopy;
    }
  }
#endif

  while( amt>0 && (wrote = seekAndWrite(pFile, offset, pBuf, amt))>0 ){
    amt -= wrote;
    offset += wrote;
    pBuf = &((char*)pBuf)[wrote];
  }
  SimulateIOError(( wrote=(-1), amt=1 ));
  SimulateDiskfullError(( wrote=0, amt=1 ));

  if( amt>0 ){
    if( wrote<0 && pFile->lastErrno!=ENOSPC ){
      /* lastErrno set by seekAndWrite */
      return SQLITE_IOERR_WRITE;
    }else{
      storeLastErrno(pFile, 0); /* not a system error */
      return SQLITE_FULL;
    }







|
|







|







3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
      memcpy(&((u8 *)(pFile->pMapRegion))[offset], pBuf, nCopy);
      pBuf = &((u8 *)pBuf)[nCopy];
      amt -= nCopy;
      offset += nCopy;
    }
  }
#endif
 
  while( (wrote = seekAndWrite(pFile, offset, pBuf, amt))<amt && wrote>0 ){
    amt -= wrote;
    offset += wrote;
    pBuf = &((char*)pBuf)[wrote];
  }
  SimulateIOError(( wrote=(-1), amt=1 ));
  SimulateDiskfullError(( wrote=0, amt=1 ));

  if( amt>wrote ){
    if( wrote<0 && pFile->lastErrno!=ENOSPC ){
      /* lastErrno set by seekAndWrite */
      return SQLITE_IOERR_WRITE;
    }else{
      storeLastErrno(pFile, 0); /* not a system error */
      return SQLITE_FULL;
    }
Changes to src/pcache1.c.
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412

413
414
415
416
417
418
419
420
421
422
423
424

425
426
427
428
429
430
431
  }
}
#endif /* SQLITE_ENABLE_MEMORY_MANAGEMENT */

/*
** Allocate a new page object initially associated with cache pCache.
*/
static PgHdr1 *pcache1AllocPage(PCache1 *pCache){
  PgHdr1 *p = 0;
  void *pPg;

  assert( sqlite3_mutex_held(pCache->pGroup->mutex) );
  if( pCache->pFree || (pCache->nPage==0 && pcache1InitBulk(pCache)) ){
    p = pCache->pFree;
    pCache->pFree = p->pNext;
    p->pNext = 0;
  }else{
#ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT
    /* The group mutex must be released before pcache1Alloc() is called. This
    ** is because it might call sqlite3_release_memory(), which assumes that 
    ** this mutex is not held. */
    assert( pcache1.separateCache==0 );
    assert( pCache->pGroup==&pcache1.grp );
    pcache1LeaveMutex(pCache->pGroup);
#endif

#ifdef SQLITE_PCACHE_SEPARATE_HEADER
    pPg = pcache1Alloc(pCache->szPage);
    p = sqlite3Malloc(sizeof(PgHdr1) + pCache->szExtra);
    if( !pPg || !p ){
      pcache1Free(pPg);
      sqlite3_free(p);
      pPg = 0;
    }
#else
    pPg = pcache1Alloc(pCache->szAlloc);
    p = (PgHdr1 *)&((u8 *)pPg)[pCache->szPage];
#endif

#ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT
    pcache1EnterMutex(pCache->pGroup);
#endif
    if( pPg==0 ) return 0;
    p->page.pBuf = pPg;
    p->page.pExtra = &p[1];
    p->isBulkLocal = 0;







|

















>












>







388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
  }
}
#endif /* SQLITE_ENABLE_MEMORY_MANAGEMENT */

/*
** Allocate a new page object initially associated with cache pCache.
*/
static PgHdr1 *pcache1AllocPage(PCache1 *pCache, int benignMalloc){
  PgHdr1 *p = 0;
  void *pPg;

  assert( sqlite3_mutex_held(pCache->pGroup->mutex) );
  if( pCache->pFree || (pCache->nPage==0 && pcache1InitBulk(pCache)) ){
    p = pCache->pFree;
    pCache->pFree = p->pNext;
    p->pNext = 0;
  }else{
#ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT
    /* The group mutex must be released before pcache1Alloc() is called. This
    ** is because it might call sqlite3_release_memory(), which assumes that 
    ** this mutex is not held. */
    assert( pcache1.separateCache==0 );
    assert( pCache->pGroup==&pcache1.grp );
    pcache1LeaveMutex(pCache->pGroup);
#endif
    if( benignMalloc ) sqlite3BeginBenignMalloc();
#ifdef SQLITE_PCACHE_SEPARATE_HEADER
    pPg = pcache1Alloc(pCache->szPage);
    p = sqlite3Malloc(sizeof(PgHdr1) + pCache->szExtra);
    if( !pPg || !p ){
      pcache1Free(pPg);
      sqlite3_free(p);
      pPg = 0;
    }
#else
    pPg = pcache1Alloc(pCache->szAlloc);
    p = (PgHdr1 *)&((u8 *)pPg)[pCache->szPage];
#endif
    if( benignMalloc ) sqlite3EndBenignMalloc();
#ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT
    pcache1EnterMutex(pCache->pGroup);
#endif
    if( pPg==0 ) return 0;
    p->page.pBuf = pPg;
    p->page.pExtra = &p[1];
    p->isBulkLocal = 0;
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
    }
  }

  /* Step 5. If a usable page buffer has still not been found, 
  ** attempt to allocate a new one. 
  */
  if( !pPage ){
    if( createFlag==1 ){ sqlite3BeginBenignMalloc(); }
    pPage = pcache1AllocPage(pCache);
    if( createFlag==1 ){ sqlite3EndBenignMalloc(); }
  }

  if( pPage ){
    unsigned int h = iKey % pCache->nHash;
    pCache->nPage++;
    pPage->iKey = iKey;
    pPage->pNext = pCache->apHash[h];







<
|
<







865
866
867
868
869
870
871

872

873
874
875
876
877
878
879
    }
  }

  /* Step 5. If a usable page buffer has still not been found, 
  ** attempt to allocate a new one. 
  */
  if( !pPage ){

    pPage = pcache1AllocPage(pCache, createFlag==1);

  }

  if( pPage ){
    unsigned int h = iKey % pCache->nHash;
    pCache->nPage++;
    pPage->iKey = iKey;
    pPage->pNext = pCache->apHash[h];
Changes to src/pragma.c.
154
155
156
157
158
159
160
161
162


















163
164
165
166
167

168
169
170
171
172









173
174
175

176
177
178
179
180
181
182
  if( invalidateTempStorage( pParse ) != SQLITE_OK ){
    return SQLITE_ERROR;
  }
  db->temp_store = (u8)ts;
  return SQLITE_OK;
}
#endif /* SQLITE_PAGER_PRAGMAS */

/*


















** Generate code to return a single integer value.
*/
static void returnSingleInt(Parse *pParse, const char *zLabel, i64 value){
  Vdbe *v = sqlite3GetVdbe(pParse);
  int nMem = ++pParse->nMem;

  i64 *pI64 = sqlite3DbMallocRaw(pParse->db, sizeof(value));
  if( pI64 ){
    memcpy(pI64, &value, sizeof(value));
  }
  sqlite3VdbeAddOp4(v, OP_Int64, 0, nMem, 0, (char*)pI64, P4_INT64);









  sqlite3VdbeSetNumCols(v, 1);
  sqlite3VdbeSetColName(v, 0, COLNAME_NAME, zLabel, SQLITE_STATIC);
  sqlite3VdbeAddOp2(v, OP_ResultRow, nMem, 1);

}


/*
** Set the safety_level and pager flags for pager iDb.  Or if iDb<0
** set these values for all pagers.
*/









>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>


|
|
<
>
|
<
<
|
|
>
>
>
>
>
>
>
>
>
|
|
|
>







154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184

185
186


187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
  if( invalidateTempStorage( pParse ) != SQLITE_OK ){
    return SQLITE_ERROR;
  }
  db->temp_store = (u8)ts;
  return SQLITE_OK;
}
#endif /* SQLITE_PAGER_PRAGMAS */

/*
** Set the names of the first N columns to the values in azCol[]
*/
static void setAllColumnNames(
  Vdbe *v,               /* The query under construction */
  int N,                 /* Number of columns */
  const char **azCol     /* Names of columns */
){
  int i;
  sqlite3VdbeSetNumCols(v, N);
  for(i=0; i<N; i++){
    sqlite3VdbeSetColName(v, i, COLNAME_NAME, azCol[i], SQLITE_STATIC);
  }
}
static void setOneColumnName(Vdbe *v, const char *z){
  setAllColumnNames(v, 1, &z);
}

/*
** Generate code to return a single integer value.
*/
static void returnSingleInt(Vdbe *v, const char *zLabel, i64 value){
  sqlite3VdbeAddOp4Dup8(v, OP_Int64, 0, 1, 0, (const u8*)&value, P4_INT64);

  setOneColumnName(v, zLabel);
  sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1);


}

/*
** Generate code to return a single text value.
*/
static void returnSingleText(
  Vdbe *v,                /* Prepared statement under construction */
  const char *zLabel,     /* Name of the result column */
  const char *zValue      /* Value to be returned */
){
  if( zValue ){
    sqlite3VdbeLoadString(v, 1, (const char*)zValue);
    setOneColumnName(v, zLabel);
    sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1);
  }
}


/*
** Set the safety_level and pager flags for pager iDb.  Or if iDb<0
** set these values for all pagers.
*/
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
  aFcntl[0] = 0;
  aFcntl[1] = zLeft;
  aFcntl[2] = zRight;
  aFcntl[3] = 0;
  db->busyHandler.nBusy = 0;
  rc = sqlite3_file_control(db, zDb, SQLITE_FCNTL_PRAGMA, (void*)aFcntl);
  if( rc==SQLITE_OK ){
    if( aFcntl[0] ){
      int nMem = ++pParse->nMem;
      sqlite3VdbeAddOp4(v, OP_String8, 0, nMem, 0, aFcntl[0], 0);
      sqlite3VdbeSetNumCols(v, 1);
      sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "result", SQLITE_STATIC);
      sqlite3VdbeAddOp2(v, OP_ResultRow, nMem, 1);
      sqlite3_free(aFcntl[0]);
    }
    goto pragma_out;
  }
  if( rc!=SQLITE_NOTFOUND ){
    if( aFcntl[0] ){
      sqlite3ErrorMsg(pParse, "%s", aFcntl[0]);
      sqlite3_free(aFcntl[0]);
    }







|
<
<
<
<
<
|
<







358
359
360
361
362
363
364
365





366

367
368
369
370
371
372
373
  aFcntl[0] = 0;
  aFcntl[1] = zLeft;
  aFcntl[2] = zRight;
  aFcntl[3] = 0;
  db->busyHandler.nBusy = 0;
  rc = sqlite3_file_control(db, zDb, SQLITE_FCNTL_PRAGMA, (void*)aFcntl);
  if( rc==SQLITE_OK ){
    returnSingleText(v, "result", aFcntl[0]);





    sqlite3_free(aFcntl[0]);

    goto pragma_out;
  }
  if( rc!=SQLITE_NOTFOUND ){
    if( aFcntl[0] ){
      sqlite3ErrorMsg(pParse, "%s", aFcntl[0]);
      sqlite3_free(aFcntl[0]);
    }
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
      { OP_Integer,     0, 1,        0},                         /* 6 */
      { OP_Noop,        0, 0,        0},
      { OP_ResultRow,   1, 1,        0},
    };
    int addr;
    sqlite3VdbeUsesBtree(v, iDb);
    if( !zRight ){
      sqlite3VdbeSetNumCols(v, 1);
      sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "cache_size", SQLITE_STATIC);
      pParse->nMem += 2;
      addr = sqlite3VdbeAddOpList(v, ArraySize(getCacheSize), getCacheSize,iLn);
      sqlite3VdbeChangeP1(v, addr, iDb);
      sqlite3VdbeChangeP1(v, addr+1, iDb);
      sqlite3VdbeChangeP1(v, addr+6, SQLITE_DEFAULT_CACHE_SIZE);
    }else{
      int size = sqlite3AbsInt32(sqlite3Atoi(zRight));







<
|







429
430
431
432
433
434
435

436
437
438
439
440
441
442
443
      { OP_Integer,     0, 1,        0},                         /* 6 */
      { OP_Noop,        0, 0,        0},
      { OP_ResultRow,   1, 1,        0},
    };
    int addr;
    sqlite3VdbeUsesBtree(v, iDb);
    if( !zRight ){

      setOneColumnName(v, "cache_size");
      pParse->nMem += 2;
      addr = sqlite3VdbeAddOpList(v, ArraySize(getCacheSize), getCacheSize,iLn);
      sqlite3VdbeChangeP1(v, addr, iDb);
      sqlite3VdbeChangeP1(v, addr+1, iDb);
      sqlite3VdbeChangeP1(v, addr+6, SQLITE_DEFAULT_CACHE_SIZE);
    }else{
      int size = sqlite3AbsInt32(sqlite3Atoi(zRight));
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
  ** the database has not yet been created.
  */
  case PragTyp_PAGE_SIZE: {
    Btree *pBt = pDb->pBt;
    assert( pBt!=0 );
    if( !zRight ){
      int size = ALWAYS(pBt) ? sqlite3BtreeGetPageSize(pBt) : 0;
      returnSingleInt(pParse, "page_size", size);
    }else{
      /* Malloc may fail when setting the page-size, as there is an internal
      ** buffer that the pager module resizes using sqlite3_realloc().
      */
      db->nextPagesize = sqlite3Atoi(zRight);
      if( SQLITE_NOMEM==sqlite3BtreeSetPageSize(pBt, db->nextPagesize,-1,0) ){
        db->mallocFailed = 1;







|







463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
  ** the database has not yet been created.
  */
  case PragTyp_PAGE_SIZE: {
    Btree *pBt = pDb->pBt;
    assert( pBt!=0 );
    if( !zRight ){
      int size = ALWAYS(pBt) ? sqlite3BtreeGetPageSize(pBt) : 0;
      returnSingleInt(v, "page_size", size);
    }else{
      /* Malloc may fail when setting the page-size, as there is an internal
      ** buffer that the pager module resizes using sqlite3_realloc().
      */
      db->nextPagesize = sqlite3Atoi(zRight);
      if( SQLITE_NOMEM==sqlite3BtreeSetPageSize(pBt, db->nextPagesize,-1,0) ){
        db->mallocFailed = 1;
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
    if( pId2->n==0 && b>=0 ){
      int ii;
      for(ii=0; ii<db->nDb; ii++){
        sqlite3BtreeSecureDelete(db->aDb[ii].pBt, b);
      }
    }
    b = sqlite3BtreeSecureDelete(pBt, b);
    returnSingleInt(pParse, "secure_delete", b);
    break;
  }

  /*
  **  PRAGMA [database.]max_page_count
  **  PRAGMA [database.]max_page_count=N
  **







|







498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
    if( pId2->n==0 && b>=0 ){
      int ii;
      for(ii=0; ii<db->nDb; ii++){
        sqlite3BtreeSecureDelete(db->aDb[ii].pBt, b);
      }
    }
    b = sqlite3BtreeSecureDelete(pBt, b);
    returnSingleInt(v, "secure_delete", b);
    break;
  }

  /*
  **  PRAGMA [database.]max_page_count
  **  PRAGMA [database.]max_page_count=N
  **
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
    }

    assert( eMode==PAGER_LOCKINGMODE_NORMAL
            || eMode==PAGER_LOCKINGMODE_EXCLUSIVE );
    if( eMode==PAGER_LOCKINGMODE_EXCLUSIVE ){
      zRet = "exclusive";
    }
    sqlite3VdbeSetNumCols(v, 1);
    sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "locking_mode", SQLITE_STATIC);
    sqlite3VdbeAddOp4(v, OP_String8, 0, 1, 0, zRet, 0);
    sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1);
    break;
  }

  /*
  **  PRAGMA [database.]journal_mode
  **  PRAGMA [database.]journal_mode =
  **                      (delete|persist|off|truncate|memory|wal|off)
  */
  case PragTyp_JOURNAL_MODE: {
    int eMode;        /* One of the PAGER_JOURNALMODE_XXX symbols */
    int ii;           /* Loop counter */

    sqlite3VdbeSetNumCols(v, 1);
    sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "journal_mode", SQLITE_STATIC);

    if( zRight==0 ){
      /* If there is no "=MODE" part of the pragma, do a query for the
      ** current mode */
      eMode = PAGER_JOURNALMODE_QUERY;
    }else{
      const char *zMode;
      int n = sqlite3Strlen30(zRight);







<
|
<
<












<
<
|







577
578
579
580
581
582
583

584


585
586
587
588
589
590
591
592
593
594
595
596


597
598
599
600
601
602
603
604
    }

    assert( eMode==PAGER_LOCKINGMODE_NORMAL
            || eMode==PAGER_LOCKINGMODE_EXCLUSIVE );
    if( eMode==PAGER_LOCKINGMODE_EXCLUSIVE ){
      zRet = "exclusive";
    }

    returnSingleText(v, "locking_mode", zRet);


    break;
  }

  /*
  **  PRAGMA [database.]journal_mode
  **  PRAGMA [database.]journal_mode =
  **                      (delete|persist|off|truncate|memory|wal|off)
  */
  case PragTyp_JOURNAL_MODE: {
    int eMode;        /* One of the PAGER_JOURNALMODE_XXX symbols */
    int ii;           /* Loop counter */



    setOneColumnName(v, "journal_mode");
    if( zRight==0 ){
      /* If there is no "=MODE" part of the pragma, do a query for the
      ** current mode */
      eMode = PAGER_JOURNALMODE_QUERY;
    }else{
      const char *zMode;
      int n = sqlite3Strlen30(zRight);
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
    Pager *pPager = sqlite3BtreePager(pDb->pBt);
    i64 iLimit = -2;
    if( zRight ){
      sqlite3DecOrHexToI64(zRight, &iLimit);
      if( iLimit<-1 ) iLimit = -1;
    }
    iLimit = sqlite3PagerJournalSizeLimit(pPager, iLimit);
    returnSingleInt(pParse, "journal_size_limit", iLimit);
    break;
  }

#endif /* SQLITE_OMIT_PAGER_PRAGMAS */

  /*
  **  PRAGMA [database.]auto_vacuum
  **  PRAGMA [database.]auto_vacuum=N
  **
  ** Get or set the value of the database 'auto-vacuum' parameter.
  ** The value is one of:  0 NONE 1 FULL 2 INCREMENTAL
  */
#ifndef SQLITE_OMIT_AUTOVACUUM
  case PragTyp_AUTO_VACUUM: {
    Btree *pBt = pDb->pBt;
    assert( pBt!=0 );
    if( !zRight ){
      returnSingleInt(pParse, "auto_vacuum", sqlite3BtreeGetAutoVacuum(pBt));
    }else{
      int eAuto = getAutoVacuum(zRight);
      assert( eAuto>=0 && eAuto<=2 );
      db->nextAutovac = (u8)eAuto;
      /* Call SetAutoVacuum() to set initialize the internal auto and
      ** incr-vacuum flags. This is required in case this connection
      ** creates the database file. It is important that it is created







|

















|







636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
    Pager *pPager = sqlite3BtreePager(pDb->pBt);
    i64 iLimit = -2;
    if( zRight ){
      sqlite3DecOrHexToI64(zRight, &iLimit);
      if( iLimit<-1 ) iLimit = -1;
    }
    iLimit = sqlite3PagerJournalSizeLimit(pPager, iLimit);
    returnSingleInt(v, "journal_size_limit", iLimit);
    break;
  }

#endif /* SQLITE_OMIT_PAGER_PRAGMAS */

  /*
  **  PRAGMA [database.]auto_vacuum
  **  PRAGMA [database.]auto_vacuum=N
  **
  ** Get or set the value of the database 'auto-vacuum' parameter.
  ** The value is one of:  0 NONE 1 FULL 2 INCREMENTAL
  */
#ifndef SQLITE_OMIT_AUTOVACUUM
  case PragTyp_AUTO_VACUUM: {
    Btree *pBt = pDb->pBt;
    assert( pBt!=0 );
    if( !zRight ){
      returnSingleInt(v, "auto_vacuum", sqlite3BtreeGetAutoVacuum(pBt));
    }else{
      int eAuto = getAutoVacuum(zRight);
      assert( eAuto>=0 && eAuto<=2 );
      db->nextAutovac = (u8)eAuto;
      /* Call SetAutoVacuum() to set initialize the internal auto and
      ** incr-vacuum flags. This is required in case this connection
      ** creates the database file. It is important that it is created
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
  ** number of pages is adjusted so that the cache uses -N kibibytes
  ** of memory.
  */
  case PragTyp_CACHE_SIZE: {
    assert( sqlite3SchemaMutexHeld(db, iDb, 0) );
    if( !zRight ){
      if( sqlite3ReadSchema(pParse) ) goto pragma_out;
      returnSingleInt(pParse, "cache_size", pDb->pSchema->cache_size);
    }else{
      int size = sqlite3Atoi(zRight);
      pDb->pSchema->cache_size = size;
      sqlite3BtreeSetCacheSize(pDb->pBt, pDb->pSchema->cache_size);
      if( sqlite3ReadSchema(pParse) ) goto pragma_out;
    }
    break;







|







732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
  ** number of pages is adjusted so that the cache uses -N kibibytes
  ** of memory.
  */
  case PragTyp_CACHE_SIZE: {
    assert( sqlite3SchemaMutexHeld(db, iDb, 0) );
    if( !zRight ){
      if( sqlite3ReadSchema(pParse) ) goto pragma_out;
      returnSingleInt(v, "cache_size", pDb->pSchema->cache_size);
    }else{
      int size = sqlite3Atoi(zRight);
      pDb->pSchema->cache_size = size;
      sqlite3BtreeSetCacheSize(pDb->pBt, pDb->pSchema->cache_size);
      if( sqlite3ReadSchema(pParse) ) goto pragma_out;
    }
    break;
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
    sz = -1;
    rc = sqlite3_file_control(db, zDb, SQLITE_FCNTL_MMAP_SIZE, &sz);
#else
    sz = 0;
    rc = SQLITE_OK;
#endif
    if( rc==SQLITE_OK ){
      returnSingleInt(pParse, "mmap_size", sz);
    }else if( rc!=SQLITE_NOTFOUND ){
      pParse->nErr++;
      pParse->rc = rc;
    }
    break;
  }

  /*
  **   PRAGMA temp_store
  **   PRAGMA temp_store = "default"|"memory"|"file"
  **
  ** Return or set the local value of the temp_store flag.  Changing
  ** the local value does not make changes to the disk file and the default
  ** value will be restored the next time the database is opened.
  **
  ** Note that it is possible for the library compile-time options to
  ** override this setting
  */
  case PragTyp_TEMP_STORE: {
    if( !zRight ){
      returnSingleInt(pParse, "temp_store", db->temp_store);
    }else{
      changeTempStorage(pParse, zRight);
    }
    break;
  }

  /*
  **   PRAGMA temp_store_directory
  **   PRAGMA temp_store_directory = ""|"directory_name"
  **
  ** Return or set the local value of the temp_store_directory flag.  Changing
  ** the value sets a specific directory to be used for temporary files.
  ** Setting to a null string reverts to the default temporary directory search.
  ** If temporary directory is changed, then invalidateTempStorage.
  **
  */
  case PragTyp_TEMP_STORE_DIRECTORY: {
    if( !zRight ){
      if( sqlite3_temp_directory ){
        sqlite3VdbeSetNumCols(v, 1);
        sqlite3VdbeSetColName(v, 0, COLNAME_NAME, 
            "temp_store_directory", SQLITE_STATIC);
        sqlite3VdbeAddOp4(v, OP_String8, 0, 1, 0, sqlite3_temp_directory, 0);
        sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1);
      }
    }else{
#ifndef SQLITE_OMIT_WSD
      if( zRight[0] ){
        int res;
        rc = sqlite3OsAccess(db->pVfs, zRight, SQLITE_ACCESS_READWRITE, &res);
        if( rc!=SQLITE_OK || res==0 ){
          sqlite3ErrorMsg(pParse, "not a writable directory");







|




















|


















|
<
<
<
<
<
<







778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825






826
827
828
829
830
831
832
    sz = -1;
    rc = sqlite3_file_control(db, zDb, SQLITE_FCNTL_MMAP_SIZE, &sz);
#else
    sz = 0;
    rc = SQLITE_OK;
#endif
    if( rc==SQLITE_OK ){
      returnSingleInt(v, "mmap_size", sz);
    }else if( rc!=SQLITE_NOTFOUND ){
      pParse->nErr++;
      pParse->rc = rc;
    }
    break;
  }

  /*
  **   PRAGMA temp_store
  **   PRAGMA temp_store = "default"|"memory"|"file"
  **
  ** Return or set the local value of the temp_store flag.  Changing
  ** the local value does not make changes to the disk file and the default
  ** value will be restored the next time the database is opened.
  **
  ** Note that it is possible for the library compile-time options to
  ** override this setting
  */
  case PragTyp_TEMP_STORE: {
    if( !zRight ){
      returnSingleInt(v, "temp_store", db->temp_store);
    }else{
      changeTempStorage(pParse, zRight);
    }
    break;
  }

  /*
  **   PRAGMA temp_store_directory
  **   PRAGMA temp_store_directory = ""|"directory_name"
  **
  ** Return or set the local value of the temp_store_directory flag.  Changing
  ** the value sets a specific directory to be used for temporary files.
  ** Setting to a null string reverts to the default temporary directory search.
  ** If temporary directory is changed, then invalidateTempStorage.
  **
  */
  case PragTyp_TEMP_STORE_DIRECTORY: {
    if( !zRight ){
      returnSingleText(v, "temp_store_directory", sqlite3_temp_directory);






    }else{
#ifndef SQLITE_OMIT_WSD
      if( zRight[0] ){
        int res;
        rc = sqlite3OsAccess(db->pVfs, zRight, SQLITE_ACCESS_READWRITE, &res);
        if( rc!=SQLITE_OK || res==0 ){
          sqlite3ErrorMsg(pParse, "not a writable directory");
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
  ** a relative path will probably be based on the current directory for the
  ** process.  Database file specified with an absolute path are not impacted
  ** by this setting, regardless of its value.
  **
  */
  case PragTyp_DATA_STORE_DIRECTORY: {
    if( !zRight ){
      if( sqlite3_data_directory ){
        sqlite3VdbeSetNumCols(v, 1);
        sqlite3VdbeSetColName(v, 0, COLNAME_NAME, 
            "data_store_directory", SQLITE_STATIC);
        sqlite3VdbeAddOp4(v, OP_String8, 0, 1, 0, sqlite3_data_directory, 0);
        sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1);
      }
    }else{
#ifndef SQLITE_OMIT_WSD
      if( zRight[0] ){
        int res;
        rc = sqlite3OsAccess(db->pVfs, zRight, SQLITE_ACCESS_READWRITE, &res);
        if( rc!=SQLITE_OK || res==0 ){
          sqlite3ErrorMsg(pParse, "not a writable directory");







|
<
<
<
<
<
<







862
863
864
865
866
867
868
869






870
871
872
873
874
875
876
  ** a relative path will probably be based on the current directory for the
  ** process.  Database file specified with an absolute path are not impacted
  ** by this setting, regardless of its value.
  **
  */
  case PragTyp_DATA_STORE_DIRECTORY: {
    if( !zRight ){
      returnSingleText(v, "data_store_directory", sqlite3_data_directory);






    }else{
#ifndef SQLITE_OMIT_WSD
      if( zRight[0] ){
        int res;
        rc = sqlite3OsAccess(db->pVfs, zRight, SQLITE_ACCESS_READWRITE, &res);
        if( rc!=SQLITE_OK || res==0 ){
          sqlite3ErrorMsg(pParse, "not a writable directory");
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
  case PragTyp_LOCK_PROXY_FILE: {
    if( !zRight ){
      Pager *pPager = sqlite3BtreePager(pDb->pBt);
      char *proxy_file_path = NULL;
      sqlite3_file *pFile = sqlite3PagerFile(pPager);
      sqlite3OsFileControlHint(pFile, SQLITE_GET_LOCKPROXYFILE, 
                           &proxy_file_path);
      
      if( proxy_file_path ){
        sqlite3VdbeSetNumCols(v, 1);
        sqlite3VdbeSetColName(v, 0, COLNAME_NAME, 
                              "lock_proxy_file", SQLITE_STATIC);
        sqlite3VdbeAddOp4(v, OP_String8, 0, 1, 0, proxy_file_path, 0);
        sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1);
      }
    }else{
      Pager *pPager = sqlite3BtreePager(pDb->pBt);
      sqlite3_file *pFile = sqlite3PagerFile(pPager);
      int res;
      if( zRight[0] ){
        res=sqlite3OsFileControl(pFile, SQLITE_SET_LOCKPROXYFILE, 
                                     zRight);







<
<
<
<
|
<
<
<







901
902
903
904
905
906
907




908



909
910
911
912
913
914
915
  case PragTyp_LOCK_PROXY_FILE: {
    if( !zRight ){
      Pager *pPager = sqlite3BtreePager(pDb->pBt);
      char *proxy_file_path = NULL;
      sqlite3_file *pFile = sqlite3PagerFile(pPager);
      sqlite3OsFileControlHint(pFile, SQLITE_GET_LOCKPROXYFILE, 
                           &proxy_file_path);




      returnSingleText(v, "lock_proxy_file", proxy_file_path);



    }else{
      Pager *pPager = sqlite3BtreePager(pDb->pBt);
      sqlite3_file *pFile = sqlite3PagerFile(pPager);
      int res;
      if( zRight[0] ){
        res=sqlite3OsFileControl(pFile, SQLITE_SET_LOCKPROXYFILE, 
                                     zRight);
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
  ** Return or set the local value of the synchronous flag.  Changing
  ** the local value does not make changes to the disk file and the
  ** default value will be restored the next time the database is
  ** opened.
  */
  case PragTyp_SYNCHRONOUS: {
    if( !zRight ){
      returnSingleInt(pParse, "synchronous", pDb->safety_level-1);
    }else{
      if( !db->autoCommit ){
        sqlite3ErrorMsg(pParse, 
            "Safety level may not be changed inside a transaction");
      }else{
        int iLevel = (getSafetyLevel(zRight,0,1)+1) & PAGER_SYNCHRONOUS_MASK;
        if( iLevel==0 ) iLevel = 1;
        pDb->safety_level = iLevel;
        setAllPagerFlags(db);
      }
    }
    break;
  }
#endif /* SQLITE_OMIT_PAGER_PRAGMAS */

#ifndef SQLITE_OMIT_FLAG_PRAGMAS
  case PragTyp_FLAG: {
    if( zRight==0 ){
      returnSingleInt(pParse, pPragma->zName, (db->flags & pPragma->iArg)!=0 );
    }else{
      int mask = pPragma->iArg;    /* Mask of bits to set or clear. */
      if( db->autoCommit==0 ){
        /* Foreign key support may not be enabled or disabled while not
        ** in auto-commit mode.  */
        mask &= ~(SQLITE_ForeignKeys);
      }







|


















|







933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
  ** Return or set the local value of the synchronous flag.  Changing
  ** the local value does not make changes to the disk file and the
  ** default value will be restored the next time the database is
  ** opened.
  */
  case PragTyp_SYNCHRONOUS: {
    if( !zRight ){
      returnSingleInt(v, "synchronous", pDb->safety_level-1);
    }else{
      if( !db->autoCommit ){
        sqlite3ErrorMsg(pParse, 
            "Safety level may not be changed inside a transaction");
      }else{
        int iLevel = (getSafetyLevel(zRight,0,1)+1) & PAGER_SYNCHRONOUS_MASK;
        if( iLevel==0 ) iLevel = 1;
        pDb->safety_level = iLevel;
        setAllPagerFlags(db);
      }
    }
    break;
  }
#endif /* SQLITE_OMIT_PAGER_PRAGMAS */

#ifndef SQLITE_OMIT_FLAG_PRAGMAS
  case PragTyp_FLAG: {
    if( zRight==0 ){
      returnSingleInt(v, pPragma->zName, (db->flags & pPragma->iArg)!=0 );
    }else{
      int mask = pPragma->iArg;    /* Mask of bits to set or clear. */
      if( db->autoCommit==0 ){
        /* Foreign key support may not be enabled or disabled while not
        ** in auto-commit mode.  */
        mask &= ~(SQLITE_ForeignKeys);
      }
1007
1008
1009
1010
1011
1012
1013



1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026

1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050






1051
1052
1053
1054
1055
1056
1057

1058
1059
1060
1061
1062
1063
1064
1065
1066
1067

1068
1069

1070
1071
1072
1073
1074
1075
1076
1077
1078
1079

1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093



1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115

1116
1117
1118
1119
1120
1121
1122
1123
1124
1125

1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141



1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153

1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164

1165
1166
1167
1168
1169
1170
1171
1172
1173
1174

1175
1176
1177
1178
1179
1180
1181
1182
1183

1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208




1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223





1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
  ** notnull:    True if 'NOT NULL' is part of column declaration
  ** dflt_value: The default value for the column, if any.
  */
  case PragTyp_TABLE_INFO: if( zRight ){
    Table *pTab;
    pTab = sqlite3FindTable(db, zRight, zDb);
    if( pTab ){



      int i, k;
      int nHidden = 0;
      Column *pCol;
      Index *pPk = sqlite3PrimaryKeyIndex(pTab);
      sqlite3VdbeSetNumCols(v, 6);
      pParse->nMem = 6;
      sqlite3CodeVerifySchema(pParse, iDb);
      sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "cid", SQLITE_STATIC);
      sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "name", SQLITE_STATIC);
      sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "type", SQLITE_STATIC);
      sqlite3VdbeSetColName(v, 3, COLNAME_NAME, "notnull", SQLITE_STATIC);
      sqlite3VdbeSetColName(v, 4, COLNAME_NAME, "dflt_value", SQLITE_STATIC);
      sqlite3VdbeSetColName(v, 5, COLNAME_NAME, "pk", SQLITE_STATIC);

      sqlite3ViewGetColumnNames(pParse, pTab);
      for(i=0, pCol=pTab->aCol; i<pTab->nCol; i++, pCol++){
        if( IsHiddenColumn(pCol) ){
          nHidden++;
          continue;
        }
        sqlite3VdbeAddOp2(v, OP_Integer, i-nHidden, 1);
        sqlite3VdbeAddOp4(v, OP_String8, 0, 2, 0, pCol->zName, 0);
        sqlite3VdbeAddOp4(v, OP_String8, 0, 3, 0,
           pCol->zType ? pCol->zType : "", 0);
        sqlite3VdbeAddOp2(v, OP_Integer, (pCol->notNull ? 1 : 0), 4);
        if( pCol->zDflt ){
          sqlite3VdbeAddOp4(v, OP_String8, 0, 5, 0, (char*)pCol->zDflt, 0);
        }else{
          sqlite3VdbeAddOp2(v, OP_Null, 0, 5);
        }
        if( (pCol->colFlags & COLFLAG_PRIMKEY)==0 ){
          k = 0;
        }else if( pPk==0 ){
          k = 1;
        }else{
          for(k=1; k<=pTab->nCol && pPk->aiColumn[k-1]!=i; k++){}
        }
        sqlite3VdbeAddOp2(v, OP_Integer, k, 6);






        sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 6);
      }
    }
  }
  break;

  case PragTyp_STATS: {

    Index *pIdx;
    HashElem *i;
    v = sqlite3GetVdbe(pParse);
    sqlite3VdbeSetNumCols(v, 4);
    pParse->nMem = 4;
    sqlite3CodeVerifySchema(pParse, iDb);
    sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "table", SQLITE_STATIC);
    sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "index", SQLITE_STATIC);
    sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "width", SQLITE_STATIC);
    sqlite3VdbeSetColName(v, 3, COLNAME_NAME, "height", SQLITE_STATIC);

    for(i=sqliteHashFirst(&pDb->pSchema->tblHash); i; i=sqliteHashNext(i)){
      Table *pTab = sqliteHashData(i);

      sqlite3VdbeAddOp4(v, OP_String8, 0, 1, 0, pTab->zName, 0);
      sqlite3VdbeAddOp2(v, OP_Null, 0, 2);
      sqlite3VdbeAddOp2(v, OP_Integer,
                           (int)sqlite3LogEstToInt(pTab->szTabRow), 3);
      sqlite3VdbeAddOp2(v, OP_Integer, 
          (int)sqlite3LogEstToInt(pTab->nRowLogEst), 4);
      sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 4);
      for(pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext){
        sqlite3VdbeAddOp4(v, OP_String8, 0, 2, 0, pIdx->zName, 0);
        sqlite3VdbeAddOp2(v, OP_Integer,

                             (int)sqlite3LogEstToInt(pIdx->szIdxRow), 3);
        sqlite3VdbeAddOp2(v, OP_Integer, 
            (int)sqlite3LogEstToInt(pIdx->aiRowLogEst[0]), 4);
        sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 4);
      }
    }
  }
  break;

  case PragTyp_INDEX_INFO: if( zRight ){
    Index *pIdx;
    Table *pTab;
    pIdx = sqlite3FindIndex(db, zRight, zDb);
    if( pIdx ){



      int i;
      int mx;
      if( pPragma->iArg ){
        /* PRAGMA index_xinfo (newer version with more rows and columns) */
        mx = pIdx->nColumn;
        pParse->nMem = 6;
      }else{
        /* PRAGMA index_info (legacy version) */
        mx = pIdx->nKeyCol;
        pParse->nMem = 3;
      }
      pTab = pIdx->pTable;
      sqlite3VdbeSetNumCols(v, pParse->nMem);
      sqlite3CodeVerifySchema(pParse, iDb);
      sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "seqno", SQLITE_STATIC);
      sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "cid", SQLITE_STATIC);
      sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "name", SQLITE_STATIC);
      if( pPragma->iArg ){
        sqlite3VdbeSetColName(v, 3, COLNAME_NAME, "desc", SQLITE_STATIC);
        sqlite3VdbeSetColName(v, 4, COLNAME_NAME, "coll", SQLITE_STATIC);
        sqlite3VdbeSetColName(v, 5, COLNAME_NAME, "key", SQLITE_STATIC);
      }

      for(i=0; i<mx; i++){
        i16 cnum = pIdx->aiColumn[i];
        sqlite3VdbeAddOp2(v, OP_Integer, i, 1);
        sqlite3VdbeAddOp2(v, OP_Integer, cnum, 2);
        if( cnum<0 ){
          sqlite3VdbeAddOp2(v, OP_Null, 0, 3);
        }else{
          sqlite3VdbeAddOp4(v, OP_String8, 0, 3, 0, pTab->aCol[cnum].zName, 0);
        }
        if( pPragma->iArg ){

          sqlite3VdbeAddOp2(v, OP_Integer, pIdx->aSortOrder[i], 4);
          sqlite3VdbeAddOp4(v, OP_String8, 0, 5, 0, pIdx->azColl[i], 0);
          sqlite3VdbeAddOp2(v, OP_Integer, i<pIdx->nKeyCol, 6);
        }
        sqlite3VdbeAddOp2(v, OP_ResultRow, 1, pParse->nMem);
      }
    }
  }
  break;

  case PragTyp_INDEX_LIST: if( zRight ){
    Index *pIdx;
    Table *pTab;
    int i;
    pTab = sqlite3FindTable(db, zRight, zDb);
    if( pTab ){



      v = sqlite3GetVdbe(pParse);
      sqlite3VdbeSetNumCols(v, 5);
      pParse->nMem = 5;
      sqlite3CodeVerifySchema(pParse, iDb);
      sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "seq", SQLITE_STATIC);
      sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "name", SQLITE_STATIC);
      sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "unique", SQLITE_STATIC);
      sqlite3VdbeSetColName(v, 3, COLNAME_NAME, "origin", SQLITE_STATIC);
      sqlite3VdbeSetColName(v, 4, COLNAME_NAME, "partial", SQLITE_STATIC);
      for(pIdx=pTab->pIndex, i=0; pIdx; pIdx=pIdx->pNext, i++){
        const char *azOrigin[] = { "c", "u", "pk" };
        sqlite3VdbeAddOp2(v, OP_Integer, i, 1);

        sqlite3VdbeAddOp4(v, OP_String8, 0, 2, 0, pIdx->zName, 0);
        sqlite3VdbeAddOp2(v, OP_Integer, IsUniqueIndex(pIdx), 3);
        sqlite3VdbeAddOp4(v, OP_String8, 0, 4, 0, azOrigin[pIdx->idxType], 0);
        sqlite3VdbeAddOp2(v, OP_Integer, pIdx->pPartIdxWhere!=0, 5);
        sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 5);
      }
    }
  }
  break;

  case PragTyp_DATABASE_LIST: {

    int i;
    sqlite3VdbeSetNumCols(v, 3);
    pParse->nMem = 3;
    sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "seq", SQLITE_STATIC);
    sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "name", SQLITE_STATIC);
    sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "file", SQLITE_STATIC);
    for(i=0; i<db->nDb; i++){
      if( db->aDb[i].pBt==0 ) continue;
      assert( db->aDb[i].zName!=0 );
      sqlite3VdbeAddOp2(v, OP_Integer, i, 1);

      sqlite3VdbeAddOp4(v, OP_String8, 0, 2, 0, db->aDb[i].zName, 0);
      sqlite3VdbeAddOp4(v, OP_String8, 0, 3, 0,
           sqlite3BtreeGetFilename(db->aDb[i].pBt), 0);
      sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 3);
    }
  }
  break;

  case PragTyp_COLLATION_LIST: {

    int i = 0;
    HashElem *p;
    sqlite3VdbeSetNumCols(v, 2);
    pParse->nMem = 2;
    sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "seq", SQLITE_STATIC);
    sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "name", SQLITE_STATIC);
    for(p=sqliteHashFirst(&db->aCollSeq); p; p=sqliteHashNext(p)){
      CollSeq *pColl = (CollSeq *)sqliteHashData(p);
      sqlite3VdbeAddOp2(v, OP_Integer, i++, 1);
      sqlite3VdbeAddOp4(v, OP_String8, 0, 2, 0, pColl->zName, 0);
      sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 2);
    }
  }
  break;
#endif /* SQLITE_OMIT_SCHEMA_PRAGMAS */

#ifndef SQLITE_OMIT_FOREIGN_KEY
  case PragTyp_FOREIGN_KEY_LIST: if( zRight ){
    FKey *pFK;
    Table *pTab;
    pTab = sqlite3FindTable(db, zRight, zDb);
    if( pTab ){
      v = sqlite3GetVdbe(pParse);
      pFK = pTab->pFKey;
      if( pFK ){




        int i = 0; 
        sqlite3VdbeSetNumCols(v, 8);
        pParse->nMem = 8;
        sqlite3CodeVerifySchema(pParse, iDb);
        sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "id", SQLITE_STATIC);
        sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "seq", SQLITE_STATIC);
        sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "table", SQLITE_STATIC);
        sqlite3VdbeSetColName(v, 3, COLNAME_NAME, "from", SQLITE_STATIC);
        sqlite3VdbeSetColName(v, 4, COLNAME_NAME, "to", SQLITE_STATIC);
        sqlite3VdbeSetColName(v, 5, COLNAME_NAME, "on_update", SQLITE_STATIC);
        sqlite3VdbeSetColName(v, 6, COLNAME_NAME, "on_delete", SQLITE_STATIC);
        sqlite3VdbeSetColName(v, 7, COLNAME_NAME, "match", SQLITE_STATIC);
        while(pFK){
          int j;
          for(j=0; j<pFK->nCol; j++){





            char *zCol = pFK->aCol[j].zCol;
            char *zOnDelete = (char *)actionName(pFK->aAction[0]);
            char *zOnUpdate = (char *)actionName(pFK->aAction[1]);
            sqlite3VdbeAddOp2(v, OP_Integer, i, 1);
            sqlite3VdbeAddOp2(v, OP_Integer, j, 2);
            sqlite3VdbeAddOp4(v, OP_String8, 0, 3, 0, pFK->zTo, 0);
            sqlite3VdbeAddOp4(v, OP_String8, 0, 4, 0,
                              pTab->aCol[pFK->aCol[j].iFrom].zName, 0);
            sqlite3VdbeAddOp4(v, zCol ? OP_String8 : OP_Null, 0, 5, 0, zCol, 0);
            sqlite3VdbeAddOp4(v, OP_String8, 0, 6, 0, zOnUpdate, 0);
            sqlite3VdbeAddOp4(v, OP_String8, 0, 7, 0, zOnDelete, 0);
            sqlite3VdbeAddOp4(v, OP_String8, 0, 8, 0, "NONE", 0);
            sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 8);
          }
          ++i;
          pFK = pFK->pNextFrom;
        }
      }
    }







>
>
>




<


<
<
<
<
<
<
>






<
<
<
<
<
<
<
<
<
<







|
>
>
>
>
>
>







>



<


<
<
<
<
>


>
|
|
<
|
<
|


<
|
>
|
<
|











>
>
>












<

<
<
<
|
<
<
<
<
>


|
<
<
<
<
|
<

>
|
|
|













>
>
>

<


<
<
|
<
<


|
>
|
|
|
|







>

<

|
<
<



|
>
|
<
|






>


<

|
<


|
<















>
>
>
>

<


<
<
<
|
<
<
<
<



>
>
>
>
>
|
|
|
<
<
<
<
<
<
<
<
|







1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015

1016
1017






1018
1019
1020
1021
1022
1023
1024










1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049

1050
1051




1052
1053
1054
1055
1056
1057

1058

1059
1060
1061

1062
1063
1064

1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091

1092



1093




1094
1095
1096
1097




1098

1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120

1121
1122


1123


1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140

1141
1142


1143
1144
1145
1146
1147
1148

1149
1150
1151
1152
1153
1154
1155
1156
1157
1158

1159
1160

1161
1162
1163

1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183

1184
1185



1186




1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197








1198
1199
1200
1201
1202
1203
1204
1205
  ** notnull:    True if 'NOT NULL' is part of column declaration
  ** dflt_value: The default value for the column, if any.
  */
  case PragTyp_TABLE_INFO: if( zRight ){
    Table *pTab;
    pTab = sqlite3FindTable(db, zRight, zDb);
    if( pTab ){
      static const char *azCol[] = {
         "cid", "name", "type", "notnull", "dflt_value", "pk"
      };
      int i, k;
      int nHidden = 0;
      Column *pCol;
      Index *pPk = sqlite3PrimaryKeyIndex(pTab);

      pParse->nMem = 6;
      sqlite3CodeVerifySchema(pParse, iDb);






      setAllColumnNames(v, 6, azCol); assert( 6==ArraySize(azCol) );
      sqlite3ViewGetColumnNames(pParse, pTab);
      for(i=0, pCol=pTab->aCol; i<pTab->nCol; i++, pCol++){
        if( IsHiddenColumn(pCol) ){
          nHidden++;
          continue;
        }










        if( (pCol->colFlags & COLFLAG_PRIMKEY)==0 ){
          k = 0;
        }else if( pPk==0 ){
          k = 1;
        }else{
          for(k=1; k<=pTab->nCol && pPk->aiColumn[k-1]!=i; k++){}
        }
        sqlite3VdbeMultiLoad(v, 1, "issisi",
               i-nHidden,
               pCol->zName,
               pCol->zType ? pCol->zType : "",
               pCol->notNull ? 1 : 0,
               pCol->zDflt,
               k);
        sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 6);
      }
    }
  }
  break;

  case PragTyp_STATS: {
    static const char *azCol[] = { "table", "index", "width", "height" };
    Index *pIdx;
    HashElem *i;
    v = sqlite3GetVdbe(pParse);

    pParse->nMem = 4;
    sqlite3CodeVerifySchema(pParse, iDb);




    setAllColumnNames(v, 4, azCol);  assert( 4==ArraySize(azCol) );
    for(i=sqliteHashFirst(&pDb->pSchema->tblHash); i; i=sqliteHashNext(i)){
      Table *pTab = sqliteHashData(i);
      sqlite3VdbeMultiLoad(v, 1, "ssii",
           pTab->zName,
           0,

           (int)sqlite3LogEstToInt(pTab->szTabRow),

           (int)sqlite3LogEstToInt(pTab->nRowLogEst));
      sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 4);
      for(pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext){

        sqlite3VdbeMultiLoad(v, 2, "sii",
           pIdx->zName,
           (int)sqlite3LogEstToInt(pIdx->szIdxRow),

           (int)sqlite3LogEstToInt(pIdx->aiRowLogEst[0]));
        sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 4);
      }
    }
  }
  break;

  case PragTyp_INDEX_INFO: if( zRight ){
    Index *pIdx;
    Table *pTab;
    pIdx = sqlite3FindIndex(db, zRight, zDb);
    if( pIdx ){
      static const char *azCol[] = {
         "seqno", "cid", "name", "desc", "coll", "key"
      };
      int i;
      int mx;
      if( pPragma->iArg ){
        /* PRAGMA index_xinfo (newer version with more rows and columns) */
        mx = pIdx->nColumn;
        pParse->nMem = 6;
      }else{
        /* PRAGMA index_info (legacy version) */
        mx = pIdx->nKeyCol;
        pParse->nMem = 3;
      }
      pTab = pIdx->pTable;

      sqlite3CodeVerifySchema(pParse, iDb);



      assert( pParse->nMem<=ArraySize(azCol) );




      setAllColumnNames(v, pParse->nMem, azCol);
      for(i=0; i<mx; i++){
        i16 cnum = pIdx->aiColumn[i];
        sqlite3VdbeMultiLoad(v, 1, "iis", i, cnum,




                             cnum<0 ? 0 : pTab->aCol[cnum].zName);

        if( pPragma->iArg ){
          sqlite3VdbeMultiLoad(v, 4, "isi",
            pIdx->aSortOrder[i],
            pIdx->azColl[i],
            i<pIdx->nKeyCol);
        }
        sqlite3VdbeAddOp2(v, OP_ResultRow, 1, pParse->nMem);
      }
    }
  }
  break;

  case PragTyp_INDEX_LIST: if( zRight ){
    Index *pIdx;
    Table *pTab;
    int i;
    pTab = sqlite3FindTable(db, zRight, zDb);
    if( pTab ){
      static const char *azCol[] = {
        "seq", "name", "unique", "origin", "partial"
      };
      v = sqlite3GetVdbe(pParse);

      pParse->nMem = 5;
      sqlite3CodeVerifySchema(pParse, iDb);


      setAllColumnNames(v, 5, azCol);  assert( 5==ArraySize(azCol) );


      for(pIdx=pTab->pIndex, i=0; pIdx; pIdx=pIdx->pNext, i++){
        const char *azOrigin[] = { "c", "u", "pk" };
        sqlite3VdbeMultiLoad(v, 1, "isisi",
           i,
           pIdx->zName,
           IsUniqueIndex(pIdx),
           azOrigin[pIdx->idxType],
           pIdx->pPartIdxWhere!=0);
        sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 5);
      }
    }
  }
  break;

  case PragTyp_DATABASE_LIST: {
    static const char *azCol[] = { "seq", "name", "file" };
    int i;

    pParse->nMem = 3;
    setAllColumnNames(v, 3, azCol); assert( 3==ArraySize(azCol) );


    for(i=0; i<db->nDb; i++){
      if( db->aDb[i].pBt==0 ) continue;
      assert( db->aDb[i].zName!=0 );
      sqlite3VdbeMultiLoad(v, 1, "iss",
         i,
         db->aDb[i].zName,

         sqlite3BtreeGetFilename(db->aDb[i].pBt));
      sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 3);
    }
  }
  break;

  case PragTyp_COLLATION_LIST: {
    static const char *azCol[] = { "seq", "name" };
    int i = 0;
    HashElem *p;

    pParse->nMem = 2;
    setAllColumnNames(v, 2, azCol); assert( 2==ArraySize(azCol) );

    for(p=sqliteHashFirst(&db->aCollSeq); p; p=sqliteHashNext(p)){
      CollSeq *pColl = (CollSeq *)sqliteHashData(p);
      sqlite3VdbeMultiLoad(v, 1, "is", i++, pColl->zName);

      sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 2);
    }
  }
  break;
#endif /* SQLITE_OMIT_SCHEMA_PRAGMAS */

#ifndef SQLITE_OMIT_FOREIGN_KEY
  case PragTyp_FOREIGN_KEY_LIST: if( zRight ){
    FKey *pFK;
    Table *pTab;
    pTab = sqlite3FindTable(db, zRight, zDb);
    if( pTab ){
      v = sqlite3GetVdbe(pParse);
      pFK = pTab->pFKey;
      if( pFK ){
        static const char *azCol[] = {
           "id", "seq", "table", "from", "to", "on_update", "on_delete",
           "match"
        };
        int i = 0; 

        pParse->nMem = 8;
        sqlite3CodeVerifySchema(pParse, iDb);



        setAllColumnNames(v, 8, azCol); assert( 8==ArraySize(azCol) );




        while(pFK){
          int j;
          for(j=0; j<pFK->nCol; j++){
            sqlite3VdbeMultiLoad(v, 1, "iissssss",
                   i,
                   j,
                   pFK->zTo,
                   pTab->aCol[pFK->aCol[j].iFrom].zName,
                   pFK->aCol[j].zCol,
                   actionName(pFK->aAction[1]),  /* ON UPDATE */
                   actionName(pFK->aAction[0]),  /* ON DELETE */








                   "NONE");
            sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 8);
          }
          ++i;
          pFK = pFK->pNextFrom;
        }
      }
    }
1257
1258
1259
1260
1261
1262
1263

1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
    int x;                 /* result variable */
    int regResult;         /* 3 registers to hold a result row */
    int regKey;            /* Register to hold key for checking the FK */
    int regRow;            /* Registers to hold a row from pTab */
    int addrTop;           /* Top of a loop checking foreign keys */
    int addrOk;            /* Jump here if the key is OK */
    int *aiCols;           /* child to parent column mapping */


    regResult = pParse->nMem+1;
    pParse->nMem += 4;
    regKey = ++pParse->nMem;
    regRow = ++pParse->nMem;
    v = sqlite3GetVdbe(pParse);
    sqlite3VdbeSetNumCols(v, 4);
    sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "table", SQLITE_STATIC);
    sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "rowid", SQLITE_STATIC);
    sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "parent", SQLITE_STATIC);
    sqlite3VdbeSetColName(v, 3, COLNAME_NAME, "fkid", SQLITE_STATIC);
    sqlite3CodeVerifySchema(pParse, iDb);
    k = sqliteHashFirst(&db->aDb[iDb].pSchema->tblHash);
    while( k ){
      if( zRight ){
        pTab = sqlite3LocateTable(pParse, 0, zRight, zDb);
        k = 0;
      }else{
        pTab = (Table*)sqliteHashData(k);
        k = sqliteHashNext(k);
      }
      if( pTab==0 || pTab->pFKey==0 ) continue;
      sqlite3TableLock(pParse, iDb, pTab->tnum, 0, pTab->zName);
      if( pTab->nCol+regRow>pParse->nMem ) pParse->nMem = pTab->nCol + regRow;
      sqlite3OpenTable(pParse, 0, iDb, pTab, OP_OpenRead);
      sqlite3VdbeAddOp4(v, OP_String8, 0, regResult, 0, pTab->zName,
                        P4_TRANSIENT);
      for(i=1, pFK=pTab->pFKey; pFK; i++, pFK=pFK->pNextFrom){
        pParent = sqlite3FindTable(db, pFK->zTo, zDb);
        if( pParent==0 ) continue;
        pIdx = 0;
        sqlite3TableLock(pParse, iDb, pParent->tnum, 0, pParent->zName);
        x = sqlite3FkLocateIndex(pParse, pParent, pFK, &pIdx, 0);
        if( x==0 ){







>






|
<
<
<
<














|
<







1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234




1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249

1250
1251
1252
1253
1254
1255
1256
    int x;                 /* result variable */
    int regResult;         /* 3 registers to hold a result row */
    int regKey;            /* Register to hold key for checking the FK */
    int regRow;            /* Registers to hold a row from pTab */
    int addrTop;           /* Top of a loop checking foreign keys */
    int addrOk;            /* Jump here if the key is OK */
    int *aiCols;           /* child to parent column mapping */
    static const char *azCol[] = { "table", "rowid", "parent", "fkid" };

    regResult = pParse->nMem+1;
    pParse->nMem += 4;
    regKey = ++pParse->nMem;
    regRow = ++pParse->nMem;
    v = sqlite3GetVdbe(pParse);
    setAllColumnNames(v, 4, azCol); assert( 4==ArraySize(azCol) );




    sqlite3CodeVerifySchema(pParse, iDb);
    k = sqliteHashFirst(&db->aDb[iDb].pSchema->tblHash);
    while( k ){
      if( zRight ){
        pTab = sqlite3LocateTable(pParse, 0, zRight, zDb);
        k = 0;
      }else{
        pTab = (Table*)sqliteHashData(k);
        k = sqliteHashNext(k);
      }
      if( pTab==0 || pTab->pFKey==0 ) continue;
      sqlite3TableLock(pParse, iDb, pTab->tnum, 0, pTab->zName);
      if( pTab->nCol+regRow>pParse->nMem ) pParse->nMem = pTab->nCol + regRow;
      sqlite3OpenTable(pParse, 0, iDb, pTab, OP_OpenRead);
      sqlite3VdbeLoadString(v, regResult, pTab->zName);

      for(i=1, pFK=pTab->pFKey; pFK; i++, pFK=pFK->pNextFrom){
        pParent = sqlite3FindTable(db, pFK->zTo, zDb);
        if( pParent==0 ) continue;
        pIdx = 0;
        sqlite3TableLock(pParse, iDb, pParent->tnum, 0, pParent->zName);
        x = sqlite3FkLocateIndex(pParse, pParent, pFK, &pIdx, 0);
        if( x==0 ){
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
            sqlite3VdbeAddOp2(v, OP_IsNull, regRow, addrOk); VdbeCoverage(v);
            sqlite3VdbeAddOp2(v, OP_MustBeInt, regRow, 
               sqlite3VdbeCurrentAddr(v)+3); VdbeCoverage(v);
          }else{
            sqlite3VdbeAddOp2(v, OP_Rowid, 0, regRow);
          }
          sqlite3VdbeAddOp3(v, OP_NotExists, i, 0, regRow); VdbeCoverage(v);
          sqlite3VdbeAddOp2(v, OP_Goto, 0, addrOk);
          sqlite3VdbeJumpHere(v, sqlite3VdbeCurrentAddr(v)-2);
        }else{
          for(j=0; j<pFK->nCol; j++){
            sqlite3ExprCodeGetColumnOfTable(v, pTab, 0,
                            aiCols ? aiCols[j] : pFK->aCol[j].iFrom, regRow+j);
            sqlite3VdbeAddOp2(v, OP_IsNull, regRow+j, addrOk); VdbeCoverage(v);
          }
          if( pParent ){
            sqlite3VdbeAddOp4(v, OP_MakeRecord, regRow, pFK->nCol, regKey,
                              sqlite3IndexAffinityStr(db,pIdx), pFK->nCol);
            sqlite3VdbeAddOp4Int(v, OP_Found, i, addrOk, regKey, 0);
            VdbeCoverage(v);
          }
        }
        sqlite3VdbeAddOp2(v, OP_Rowid, 0, regResult+1);
        sqlite3VdbeAddOp4(v, OP_String8, 0, regResult+2, 0, 
                          pFK->zTo, P4_TRANSIENT);
        sqlite3VdbeAddOp2(v, OP_Integer, i-1, regResult+3);
        sqlite3VdbeAddOp2(v, OP_ResultRow, regResult, 4);
        sqlite3VdbeResolveLabel(v, addrOk);
        sqlite3DbFree(db, aiCols);
      }
      sqlite3VdbeAddOp2(v, OP_Next, 0, addrTop+1); VdbeCoverage(v);
      sqlite3VdbeJumpHere(v, addrTop);
    }







|















|
<
<







1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310


1311
1312
1313
1314
1315
1316
1317
            sqlite3VdbeAddOp2(v, OP_IsNull, regRow, addrOk); VdbeCoverage(v);
            sqlite3VdbeAddOp2(v, OP_MustBeInt, regRow, 
               sqlite3VdbeCurrentAddr(v)+3); VdbeCoverage(v);
          }else{
            sqlite3VdbeAddOp2(v, OP_Rowid, 0, regRow);
          }
          sqlite3VdbeAddOp3(v, OP_NotExists, i, 0, regRow); VdbeCoverage(v);
          sqlite3VdbeGoto(v, addrOk);
          sqlite3VdbeJumpHere(v, sqlite3VdbeCurrentAddr(v)-2);
        }else{
          for(j=0; j<pFK->nCol; j++){
            sqlite3ExprCodeGetColumnOfTable(v, pTab, 0,
                            aiCols ? aiCols[j] : pFK->aCol[j].iFrom, regRow+j);
            sqlite3VdbeAddOp2(v, OP_IsNull, regRow+j, addrOk); VdbeCoverage(v);
          }
          if( pParent ){
            sqlite3VdbeAddOp4(v, OP_MakeRecord, regRow, pFK->nCol, regKey,
                              sqlite3IndexAffinityStr(db,pIdx), pFK->nCol);
            sqlite3VdbeAddOp4Int(v, OP_Found, i, addrOk, regKey, 0);
            VdbeCoverage(v);
          }
        }
        sqlite3VdbeAddOp2(v, OP_Rowid, 0, regResult+1);
        sqlite3VdbeMultiLoad(v, regResult+2, "si", pFK->zTo, i-1);


        sqlite3VdbeAddOp2(v, OP_ResultRow, regResult, 4);
        sqlite3VdbeResolveLabel(v, addrOk);
        sqlite3DbFree(db, aiCols);
      }
      sqlite3VdbeAddOp2(v, OP_Next, 0, addrTop+1); VdbeCoverage(v);
      sqlite3VdbeJumpHere(v, addrTop);
    }
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
    ** of all attached databases.  */
    assert( iDb>=0 );
    assert( iDb==0 || pId2->z );
    if( pId2->z==0 ) iDb = -1;

    /* Initialize the VDBE program */
    pParse->nMem = 6;
    sqlite3VdbeSetNumCols(v, 1);
    sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "integrity_check", SQLITE_STATIC);

    /* Set the maximum error count */
    mxErr = SQLITE_INTEGRITY_CHECK_ERROR_MAX;
    if( zRight ){
      sqlite3GetInt32(zRight, &mxErr);
      if( mxErr<=0 ){
        mxErr = SQLITE_INTEGRITY_CHECK_ERROR_MAX;







<
|







1379
1380
1381
1382
1383
1384
1385

1386
1387
1388
1389
1390
1391
1392
1393
    ** of all attached databases.  */
    assert( iDb>=0 );
    assert( iDb==0 || pId2->z );
    if( pId2->z==0 ) iDb = -1;

    /* Initialize the VDBE program */
    pParse->nMem = 6;

    setOneColumnName(v, "integrity_check");

    /* Set the maximum error count */
    mxErr = SQLITE_INTEGRITY_CHECK_ERROR_MAX;
    if( zRight ){
      sqlite3GetInt32(zRight, &mxErr);
      if( mxErr<=0 ){
        mxErr = SQLITE_INTEGRITY_CHECK_ERROR_MAX;
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
                                       pPrior, r1);
          pPrior = pIdx;
          sqlite3VdbeAddOp2(v, OP_AddImm, 8+j, 1);  /* increment entry count */
          /* Verify that an index entry exists for the current table row */
          jmp2 = sqlite3VdbeAddOp4Int(v, OP_Found, iIdxCur+j, ckUniq, r1,
                                      pIdx->nColumn); VdbeCoverage(v);
          sqlite3VdbeAddOp2(v, OP_AddImm, 1, -1); /* Decrement error limit */
          sqlite3VdbeAddOp4(v, OP_String8, 0, 3, 0, "row ", P4_STATIC);
          sqlite3VdbeAddOp3(v, OP_Concat, 7, 3, 3);
          sqlite3VdbeAddOp4(v, OP_String8, 0, 4, 0, 
                            " missing from index ", P4_STATIC);
          sqlite3VdbeAddOp3(v, OP_Concat, 4, 3, 3);
          jmp5 = sqlite3VdbeAddOp4(v, OP_String8, 0, 4, 0,
                                   pIdx->zName, P4_TRANSIENT);
          sqlite3VdbeAddOp3(v, OP_Concat, 4, 3, 3);
          sqlite3VdbeAddOp2(v, OP_ResultRow, 3, 1);
          jmp4 = sqlite3VdbeAddOp1(v, OP_IfPos, 1); VdbeCoverage(v);
          sqlite3VdbeAddOp0(v, OP_Halt);
          sqlite3VdbeJumpHere(v, jmp2);
          /* For UNIQUE indexes, verify that only one entry exists with the
          ** current key.  The entry is unique if (1) any column is NULL
          ** or (2) the next entry has a different key */
          if( IsUniqueIndex(pIdx) ){
            int uniqOk = sqlite3VdbeMakeLabel(v);
            int jmp6;
            int kk;
            for(kk=0; kk<pIdx->nKeyCol; kk++){
              int iCol = pIdx->aiColumn[kk];
              assert( iCol>=0 && iCol<pTab->nCol );
              if( pTab->aCol[iCol].notNull ) continue;
              sqlite3VdbeAddOp2(v, OP_IsNull, r1+kk, uniqOk);
              VdbeCoverage(v);
            }
            jmp6 = sqlite3VdbeAddOp1(v, OP_Next, iIdxCur+j); VdbeCoverage(v);
            sqlite3VdbeAddOp2(v, OP_Goto, 0, uniqOk);
            sqlite3VdbeJumpHere(v, jmp6);
            sqlite3VdbeAddOp4Int(v, OP_IdxGT, iIdxCur+j, uniqOk, r1,
                                 pIdx->nKeyCol); VdbeCoverage(v);
            sqlite3VdbeAddOp2(v, OP_AddImm, 1, -1); /* Decrement error limit */
            sqlite3VdbeAddOp4(v, OP_String8, 0, 3, 0,
                              "non-unique entry in index ", P4_STATIC);
            sqlite3VdbeAddOp2(v, OP_Goto, 0, jmp5);
            sqlite3VdbeResolveLabel(v, uniqOk);
          }
          sqlite3VdbeJumpHere(v, jmp4);
          sqlite3ResolvePartIdxLabel(pParse, jmp3);
        }
        sqlite3VdbeAddOp2(v, OP_Next, iDataCur, loopTop); VdbeCoverage(v);
        sqlite3VdbeJumpHere(v, loopTop-1);
#ifndef SQLITE_OMIT_BTREECOUNT
        sqlite3VdbeAddOp4(v, OP_String8, 0, 2, 0, 
                     "wrong # of entries in index ", P4_STATIC);
        for(j=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, j++){
          if( pPk==pIdx ) continue;
          addr = sqlite3VdbeCurrentAddr(v);
          sqlite3VdbeAddOp2(v, OP_IfPos, 1, addr+2); VdbeCoverage(v);
          sqlite3VdbeAddOp2(v, OP_Halt, 0, 0);
          sqlite3VdbeAddOp2(v, OP_Count, iIdxCur+j, 3);
          sqlite3VdbeAddOp3(v, OP_Eq, 8+j, addr+8, 3); VdbeCoverage(v);
          sqlite3VdbeChangeP5(v, SQLITE_NOTNULL);
          sqlite3VdbeAddOp2(v, OP_AddImm, 1, -1);
          sqlite3VdbeAddOp4(v, OP_String8, 0, 3, 0, pIdx->zName, P4_TRANSIENT);
          sqlite3VdbeAddOp3(v, OP_Concat, 3, 2, 7);
          sqlite3VdbeAddOp2(v, OP_ResultRow, 7, 1);
        }
#endif /* SQLITE_OMIT_BTREECOUNT */
      } 
    }
    addr = sqlite3VdbeAddOpList(v, ArraySize(endCode), endCode, iLn);







|

<
|

|
<




















|




<
|
|








<
|









|







1501
1502
1503
1504
1505
1506
1507
1508
1509

1510
1511
1512

1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537

1538
1539
1540
1541
1542
1543
1544
1545
1546
1547

1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
                                       pPrior, r1);
          pPrior = pIdx;
          sqlite3VdbeAddOp2(v, OP_AddImm, 8+j, 1);  /* increment entry count */
          /* Verify that an index entry exists for the current table row */
          jmp2 = sqlite3VdbeAddOp4Int(v, OP_Found, iIdxCur+j, ckUniq, r1,
                                      pIdx->nColumn); VdbeCoverage(v);
          sqlite3VdbeAddOp2(v, OP_AddImm, 1, -1); /* Decrement error limit */
          sqlite3VdbeLoadString(v, 3, "row ");
          sqlite3VdbeAddOp3(v, OP_Concat, 7, 3, 3);

          sqlite3VdbeLoadString(v, 4, " missing from index ");
          sqlite3VdbeAddOp3(v, OP_Concat, 4, 3, 3);
          jmp5 = sqlite3VdbeLoadString(v, 4, pIdx->zName);

          sqlite3VdbeAddOp3(v, OP_Concat, 4, 3, 3);
          sqlite3VdbeAddOp2(v, OP_ResultRow, 3, 1);
          jmp4 = sqlite3VdbeAddOp1(v, OP_IfPos, 1); VdbeCoverage(v);
          sqlite3VdbeAddOp0(v, OP_Halt);
          sqlite3VdbeJumpHere(v, jmp2);
          /* For UNIQUE indexes, verify that only one entry exists with the
          ** current key.  The entry is unique if (1) any column is NULL
          ** or (2) the next entry has a different key */
          if( IsUniqueIndex(pIdx) ){
            int uniqOk = sqlite3VdbeMakeLabel(v);
            int jmp6;
            int kk;
            for(kk=0; kk<pIdx->nKeyCol; kk++){
              int iCol = pIdx->aiColumn[kk];
              assert( iCol>=0 && iCol<pTab->nCol );
              if( pTab->aCol[iCol].notNull ) continue;
              sqlite3VdbeAddOp2(v, OP_IsNull, r1+kk, uniqOk);
              VdbeCoverage(v);
            }
            jmp6 = sqlite3VdbeAddOp1(v, OP_Next, iIdxCur+j); VdbeCoverage(v);
            sqlite3VdbeGoto(v, uniqOk);
            sqlite3VdbeJumpHere(v, jmp6);
            sqlite3VdbeAddOp4Int(v, OP_IdxGT, iIdxCur+j, uniqOk, r1,
                                 pIdx->nKeyCol); VdbeCoverage(v);
            sqlite3VdbeAddOp2(v, OP_AddImm, 1, -1); /* Decrement error limit */

            sqlite3VdbeLoadString(v, 3, "non-unique entry in index ");
            sqlite3VdbeGoto(v, jmp5);
            sqlite3VdbeResolveLabel(v, uniqOk);
          }
          sqlite3VdbeJumpHere(v, jmp4);
          sqlite3ResolvePartIdxLabel(pParse, jmp3);
        }
        sqlite3VdbeAddOp2(v, OP_Next, iDataCur, loopTop); VdbeCoverage(v);
        sqlite3VdbeJumpHere(v, loopTop-1);
#ifndef SQLITE_OMIT_BTREECOUNT

        sqlite3VdbeLoadString(v, 2, "wrong # of entries in index ");
        for(j=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, j++){
          if( pPk==pIdx ) continue;
          addr = sqlite3VdbeCurrentAddr(v);
          sqlite3VdbeAddOp2(v, OP_IfPos, 1, addr+2); VdbeCoverage(v);
          sqlite3VdbeAddOp2(v, OP_Halt, 0, 0);
          sqlite3VdbeAddOp2(v, OP_Count, iIdxCur+j, 3);
          sqlite3VdbeAddOp3(v, OP_Eq, 8+j, addr+8, 3); VdbeCoverage(v);
          sqlite3VdbeChangeP5(v, SQLITE_NOTNULL);
          sqlite3VdbeAddOp2(v, OP_AddImm, 1, -1);
          sqlite3VdbeLoadString(v, 3, pIdx->zName);
          sqlite3VdbeAddOp3(v, OP_Concat, 3, 2, 7);
          sqlite3VdbeAddOp2(v, OP_ResultRow, 7, 1);
        }
#endif /* SQLITE_OMIT_BTREECOUNT */
      } 
    }
    addr = sqlite3VdbeAddOpList(v, ArraySize(endCode), endCode, iLn);
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
      { "UTF-16",   0                  }, /* SQLITE_UTF16NATIVE */
      { "UTF16",    0                  }, /* SQLITE_UTF16NATIVE */
      { 0, 0 }
    };
    const struct EncName *pEnc;
    if( !zRight ){    /* "PRAGMA encoding" */
      if( sqlite3ReadSchema(pParse) ) goto pragma_out;
      sqlite3VdbeSetNumCols(v, 1);
      sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "encoding", SQLITE_STATIC);
      sqlite3VdbeAddOp2(v, OP_String8, 0, 1);
      assert( encnames[SQLITE_UTF8].enc==SQLITE_UTF8 );
      assert( encnames[SQLITE_UTF16LE].enc==SQLITE_UTF16LE );
      assert( encnames[SQLITE_UTF16BE].enc==SQLITE_UTF16BE );
      sqlite3VdbeChangeP4(v, -1, encnames[ENC(pParse->db)].zName, P4_STATIC);
      sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1);
    }else{                        /* "PRAGMA encoding = XXX" */
      /* Only change the value of sqlite.enc if the database handle is not
      ** initialized. If the main database exists, the new sqlite.enc value
      ** will be overwritten when the schema is next loaded. If it does not
      ** already exists, it will be created to use the new encoding value.
      */
      if( 







<
<
<



|
<







1607
1608
1609
1610
1611
1612
1613



1614
1615
1616
1617

1618
1619
1620
1621
1622
1623
1624
      { "UTF-16",   0                  }, /* SQLITE_UTF16NATIVE */
      { "UTF16",    0                  }, /* SQLITE_UTF16NATIVE */
      { 0, 0 }
    };
    const struct EncName *pEnc;
    if( !zRight ){    /* "PRAGMA encoding" */
      if( sqlite3ReadSchema(pParse) ) goto pragma_out;



      assert( encnames[SQLITE_UTF8].enc==SQLITE_UTF8 );
      assert( encnames[SQLITE_UTF16LE].enc==SQLITE_UTF16LE );
      assert( encnames[SQLITE_UTF16BE].enc==SQLITE_UTF16BE );
      returnSingleText(v, "encoding", encnames[ENC(pParse->db)].zName);

    }else{                        /* "PRAGMA encoding = XXX" */
      /* Only change the value of sqlite.enc if the database handle is not
      ** initialized. If the main database exists, the new sqlite.enc value
      ** will be overwritten when the schema is next loaded. If it does not
      ** already exists, it will be created to use the new encoding value.
      */
      if( 
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787

1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
  **
  ** Return the names of all compile-time options used in this build,
  ** one option per row.
  */
  case PragTyp_COMPILE_OPTIONS: {
    int i = 0;
    const char *zOpt;
    sqlite3VdbeSetNumCols(v, 1);
    pParse->nMem = 1;
    sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "compile_option", SQLITE_STATIC);
    while( (zOpt = sqlite3_compileoption_get(i++))!=0 ){
      sqlite3VdbeAddOp4(v, OP_String8, 0, 1, 0, zOpt, 0);
      sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1);
    }
  }
  break;
#endif /* SQLITE_OMIT_COMPILEOPTION_DIAGS */

#ifndef SQLITE_OMIT_WAL
  /*
  **   PRAGMA [database.]wal_checkpoint = passive|full|restart|truncate
  **
  ** Checkpoint the database.
  */
  case PragTyp_WAL_CHECKPOINT: {

    int iBt = (pId2->z?iDb:SQLITE_MAX_ATTACHED);
    int eMode = SQLITE_CHECKPOINT_PASSIVE;
    if( zRight ){
      if( sqlite3StrICmp(zRight, "full")==0 ){
        eMode = SQLITE_CHECKPOINT_FULL;
      }else if( sqlite3StrICmp(zRight, "restart")==0 ){
        eMode = SQLITE_CHECKPOINT_RESTART;
      }else if( sqlite3StrICmp(zRight, "truncate")==0 ){
        eMode = SQLITE_CHECKPOINT_TRUNCATE;
      }
    }
    sqlite3VdbeSetNumCols(v, 3);
    pParse->nMem = 3;
    sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "busy", SQLITE_STATIC);
    sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "log", SQLITE_STATIC);
    sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "checkpointed", SQLITE_STATIC);

    sqlite3VdbeAddOp3(v, OP_Checkpoint, iBt, eMode, 1);
    sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 3);
  }
  break;

  /*
  **   PRAGMA wal_autocheckpoint
  **   PRAGMA wal_autocheckpoint = N
  **
  ** Configure a database connection to automatically checkpoint a database
  ** after accumulating N frames in the log. Or query for the current value
  ** of N.
  */
  case PragTyp_WAL_AUTOCHECKPOINT: {
    if( zRight ){
      sqlite3_wal_autocheckpoint(db, sqlite3Atoi(zRight));
    }
    returnSingleInt(pParse, "wal_autocheckpoint", 
       db->xWalCallback==sqlite3WalDefaultHook ? 
           SQLITE_PTR_TO_INT(db->pWalArg) : 0);
  }
  break;
#endif

  /*







<

|

|













>











|

<
<
<
<

















|







1711
1712
1713
1714
1715
1716
1717

1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748




1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
  **
  ** Return the names of all compile-time options used in this build,
  ** one option per row.
  */
  case PragTyp_COMPILE_OPTIONS: {
    int i = 0;
    const char *zOpt;

    pParse->nMem = 1;
    setOneColumnName(v, "compile_option");
    while( (zOpt = sqlite3_compileoption_get(i++))!=0 ){
      sqlite3VdbeLoadString(v, 1, zOpt);
      sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1);
    }
  }
  break;
#endif /* SQLITE_OMIT_COMPILEOPTION_DIAGS */

#ifndef SQLITE_OMIT_WAL
  /*
  **   PRAGMA [database.]wal_checkpoint = passive|full|restart|truncate
  **
  ** Checkpoint the database.
  */
  case PragTyp_WAL_CHECKPOINT: {
    static const char *azCol[] = { "busy", "log", "checkpointed" };
    int iBt = (pId2->z?iDb:SQLITE_MAX_ATTACHED);
    int eMode = SQLITE_CHECKPOINT_PASSIVE;
    if( zRight ){
      if( sqlite3StrICmp(zRight, "full")==0 ){
        eMode = SQLITE_CHECKPOINT_FULL;
      }else if( sqlite3StrICmp(zRight, "restart")==0 ){
        eMode = SQLITE_CHECKPOINT_RESTART;
      }else if( sqlite3StrICmp(zRight, "truncate")==0 ){
        eMode = SQLITE_CHECKPOINT_TRUNCATE;
      }
    }
    setAllColumnNames(v, 3, azCol);  assert( 3==ArraySize(azCol) );
    pParse->nMem = 3;




    sqlite3VdbeAddOp3(v, OP_Checkpoint, iBt, eMode, 1);
    sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 3);
  }
  break;

  /*
  **   PRAGMA wal_autocheckpoint
  **   PRAGMA wal_autocheckpoint = N
  **
  ** Configure a database connection to automatically checkpoint a database
  ** after accumulating N frames in the log. Or query for the current value
  ** of N.
  */
  case PragTyp_WAL_AUTOCHECKPOINT: {
    if( zRight ){
      sqlite3_wal_autocheckpoint(db, sqlite3Atoi(zRight));
    }
    returnSingleInt(v, "wal_autocheckpoint", 
       db->xWalCallback==sqlite3WalDefaultHook ? 
           SQLITE_PTR_TO_INT(db->pWalArg) : 0);
  }
  break;
#endif

  /*
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906

1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
  ** disables the timeout.
  */
  /*case PragTyp_BUSY_TIMEOUT*/ default: {
    assert( pPragma->ePragTyp==PragTyp_BUSY_TIMEOUT );
    if( zRight ){
      sqlite3_busy_timeout(db, sqlite3Atoi(zRight));
    }
    returnSingleInt(pParse, "timeout",  db->busyTimeout);
    break;
  }

  /*
  **   PRAGMA soft_heap_limit
  **   PRAGMA soft_heap_limit = N
  **
  ** IMPLEMENTATION-OF: R-26343-45930 This pragma invokes the
  ** sqlite3_soft_heap_limit64() interface with the argument N, if N is
  ** specified and is a non-negative integer.
  ** IMPLEMENTATION-OF: R-64451-07163 The soft_heap_limit pragma always
  ** returns the same integer that would be returned by the
  ** sqlite3_soft_heap_limit64(-1) C-language function.
  */
  case PragTyp_SOFT_HEAP_LIMIT: {
    sqlite3_int64 N;
    if( zRight && sqlite3DecOrHexToI64(zRight, &N)==SQLITE_OK ){
      sqlite3_soft_heap_limit64(N);
    }
    returnSingleInt(pParse, "soft_heap_limit",  sqlite3_soft_heap_limit64(-1));
    break;
  }

  /*
  **   PRAGMA threads
  **   PRAGMA threads = N
  **
  ** Configure the maximum number of worker threads.  Return the new
  ** maximum, which might be less than requested.
  */
  case PragTyp_THREADS: {
    sqlite3_int64 N;
    if( zRight
     && sqlite3DecOrHexToI64(zRight, &N)==SQLITE_OK
     && N>=0
    ){
      sqlite3_limit(db, SQLITE_LIMIT_WORKER_THREADS, (int)(N&0x7fffffff));
    }
    returnSingleInt(pParse, "threads",
                    sqlite3_limit(db, SQLITE_LIMIT_WORKER_THREADS, -1));
    break;
  }

#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
  /*
  ** Report the current state of file logs for all databases
  */
  case PragTyp_LOCK_STATUS: {
    static const char *const azLockName[] = {
      "unlocked", "shared", "reserved", "pending", "exclusive"
    };

    int i;
    sqlite3VdbeSetNumCols(v, 2);
    pParse->nMem = 2;
    sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "database", SQLITE_STATIC);
    sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "status", SQLITE_STATIC);
    for(i=0; i<db->nDb; i++){
      Btree *pBt;
      const char *zState = "unknown";
      int j;
      if( db->aDb[i].zName==0 ) continue;
      sqlite3VdbeAddOp4(v, OP_String8, 0, 1, 0, db->aDb[i].zName, P4_STATIC);
      pBt = db->aDb[i].pBt;
      if( pBt==0 || sqlite3BtreePager(pBt)==0 ){
        zState = "closed";
      }else if( sqlite3_file_control(db, i ? db->aDb[i].zName : 0, 
                                     SQLITE_FCNTL_LOCKSTATE, &j)==SQLITE_OK ){
         zState = azLockName[j];
      }
      sqlite3VdbeAddOp4(v, OP_String8, 0, 2, 0, zState, P4_STATIC);
      sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 2);
    }
    break;
  }
#endif

#ifdef SQLITE_HAS_CODEC







|



















|


















|












>

|

<
<





<







|







1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854


1855
1856
1857
1858
1859

1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
  ** disables the timeout.
  */
  /*case PragTyp_BUSY_TIMEOUT*/ default: {
    assert( pPragma->ePragTyp==PragTyp_BUSY_TIMEOUT );
    if( zRight ){
      sqlite3_busy_timeout(db, sqlite3Atoi(zRight));
    }
    returnSingleInt(v, "timeout",  db->busyTimeout);
    break;
  }

  /*
  **   PRAGMA soft_heap_limit
  **   PRAGMA soft_heap_limit = N
  **
  ** IMPLEMENTATION-OF: R-26343-45930 This pragma invokes the
  ** sqlite3_soft_heap_limit64() interface with the argument N, if N is
  ** specified and is a non-negative integer.
  ** IMPLEMENTATION-OF: R-64451-07163 The soft_heap_limit pragma always
  ** returns the same integer that would be returned by the
  ** sqlite3_soft_heap_limit64(-1) C-language function.
  */
  case PragTyp_SOFT_HEAP_LIMIT: {
    sqlite3_int64 N;
    if( zRight && sqlite3DecOrHexToI64(zRight, &N)==SQLITE_OK ){
      sqlite3_soft_heap_limit64(N);
    }
    returnSingleInt(v, "soft_heap_limit",  sqlite3_soft_heap_limit64(-1));
    break;
  }

  /*
  **   PRAGMA threads
  **   PRAGMA threads = N
  **
  ** Configure the maximum number of worker threads.  Return the new
  ** maximum, which might be less than requested.
  */
  case PragTyp_THREADS: {
    sqlite3_int64 N;
    if( zRight
     && sqlite3DecOrHexToI64(zRight, &N)==SQLITE_OK
     && N>=0
    ){
      sqlite3_limit(db, SQLITE_LIMIT_WORKER_THREADS, (int)(N&0x7fffffff));
    }
    returnSingleInt(v, "threads",
                    sqlite3_limit(db, SQLITE_LIMIT_WORKER_THREADS, -1));
    break;
  }

#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
  /*
  ** Report the current state of file logs for all databases
  */
  case PragTyp_LOCK_STATUS: {
    static const char *const azLockName[] = {
      "unlocked", "shared", "reserved", "pending", "exclusive"
    };
    static const char *azCol[] = { "database", "status" };
    int i;
    setAllColumnNames(v, 2, azCol); assert( 2==ArraySize(azCol) );
    pParse->nMem = 2;


    for(i=0; i<db->nDb; i++){
      Btree *pBt;
      const char *zState = "unknown";
      int j;
      if( db->aDb[i].zName==0 ) continue;

      pBt = db->aDb[i].pBt;
      if( pBt==0 || sqlite3BtreePager(pBt)==0 ){
        zState = "closed";
      }else if( sqlite3_file_control(db, i ? db->aDb[i].zName : 0, 
                                     SQLITE_FCNTL_LOCKSTATE, &j)==SQLITE_OK ){
         zState = azLockName[j];
      }
      sqlite3VdbeMultiLoad(v, 1, "ss", db->aDb[i].zName, zState);
      sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 2);
    }
    break;
  }
#endif

#ifdef SQLITE_HAS_CODEC
Changes to src/printf.c.
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
          bufpt = "NaN";
          length = 3;
          break;
        }
        if( realvalue>0.0 ){
          LONGDOUBLE_TYPE scale = 1.0;
          while( realvalue>=1e100*scale && exp<=350 ){ scale *= 1e100;exp+=100;}
          while( realvalue>=1e64*scale && exp<=350 ){ scale *= 1e64; exp+=64; }
          while( realvalue>=1e8*scale && exp<=350 ){ scale *= 1e8; exp+=8; }
          while( realvalue>=10.0*scale && exp<=350 ){ scale *= 10.0; exp++; }
          realvalue /= scale;
          while( realvalue<1e-8 ){ realvalue *= 1e8; exp-=8; }
          while( realvalue<1.0 ){ realvalue *= 10.0; exp--; }
          if( exp>350 ){
            if( prefix=='-' ){
              bufpt = "-Inf";
            }else if( prefix=='+' ){
              bufpt = "+Inf";
            }else{
              bufpt = "Inf";
            }
            length = sqlite3Strlen30(bufpt);
            break;
          }
        }
        bufpt = buf;
        /*
        ** If the field type is etGENERIC, then convert to either etEXP
        ** or etFLOAT, as appropriate.







<
|





<
|
|
<
<
|
<
|







464
465
466
467
468
469
470

471
472
473
474
475
476

477
478


479

480
481
482
483
484
485
486
487
          bufpt = "NaN";
          length = 3;
          break;
        }
        if( realvalue>0.0 ){
          LONGDOUBLE_TYPE scale = 1.0;
          while( realvalue>=1e100*scale && exp<=350 ){ scale *= 1e100;exp+=100;}

          while( realvalue>=1e10*scale && exp<=350 ){ scale *= 1e10; exp+=10; }
          while( realvalue>=10.0*scale && exp<=350 ){ scale *= 10.0; exp++; }
          realvalue /= scale;
          while( realvalue<1e-8 ){ realvalue *= 1e8; exp-=8; }
          while( realvalue<1.0 ){ realvalue *= 10.0; exp--; }
          if( exp>350 ){

            bufpt = buf;
            buf[0] = prefix;


            memcpy(buf+(prefix!=0),"Inf",4);

            length = 3+(prefix!=0);
            break;
          }
        }
        bufpt = buf;
        /*
        ** If the field type is etGENERIC, then convert to either etEXP
        ** or etFLOAT, as appropriate.
627
628
629
630
631
632
633

634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
        buf[0] = c;
        bufpt = buf;
        break;
      case etSTRING:
      case etDYNSTRING:
        if( bArgList ){
          bufpt = getTextArg(pArgList);

        }else{
          bufpt = va_arg(ap,char*);
        }
        if( bufpt==0 ){
          bufpt = "";
        }else if( xtype==etDYNSTRING && !bArgList ){
          zExtra = bufpt;
        }
        if( precision>=0 ){
          for(length=0; length<precision && bufpt[length]; length++){}
        }else{
          length = sqlite3Strlen30(bufpt);
        }
        break;
      case etSQLESCAPE:
      case etSQLESCAPE2:
      case etSQLESCAPE3: {
        int i, j, k, n, isnull;
        int needQuote;
        char ch;
        char q = ((xtype==etSQLESCAPE3)?'"':'\'');   /* Quote character */
        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;
        for(i=n=0; k!=0 && (ch=escarg[i])!=0; i++, k--){
          if( ch==q )  n++;
        }
        needQuote = !isnull && xtype==etSQLESCAPE2;
        n += i + 1 + needQuote*2;
        if( n>etBUFSIZE ){
          bufpt = zExtra = sqlite3Malloc( n );
          if( bufpt==0 ){
            setStrAccumError(pAccum, STRACCUM_NOMEM);
            return;
          }
        }else{







>





|








|
|
|


















|







622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
        buf[0] = c;
        bufpt = buf;
        break;
      case etSTRING:
      case etDYNSTRING:
        if( bArgList ){
          bufpt = getTextArg(pArgList);
          xtype = etSTRING;
        }else{
          bufpt = va_arg(ap,char*);
        }
        if( bufpt==0 ){
          bufpt = "";
        }else if( xtype==etDYNSTRING ){
          zExtra = bufpt;
        }
        if( precision>=0 ){
          for(length=0; length<precision && bufpt[length]; length++){}
        }else{
          length = sqlite3Strlen30(bufpt);
        }
        break;
      case etSQLESCAPE:           /* Escape ' characters */
      case etSQLESCAPE2:          /* Escape ' and enclose in '...' */
      case etSQLESCAPE3: {        /* Escape " characters */
        int i, j, k, n, isnull;
        int needQuote;
        char ch;
        char q = ((xtype==etSQLESCAPE3)?'"':'\'');   /* Quote character */
        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;
        for(i=n=0; k!=0 && (ch=escarg[i])!=0; i++, k--){
          if( ch==q )  n++;
        }
        needQuote = !isnull && xtype==etSQLESCAPE2;
        n += i + 3;
        if( n>etBUFSIZE ){
          bufpt = zExtra = sqlite3Malloc( n );
          if( bufpt==0 ){
            setStrAccumError(pAccum, STRACCUM_NOMEM);
            return;
          }
        }else{
1058
1059
1060
1061
1062
1063
1064
1065

1066
1067
1068
1069
1070
1071
1072
  fprintf(stdout,"%s", zBuf);
  fflush(stdout);
}
#endif


/*
** variable-argument wrapper around sqlite3VXPrintf().

*/
void sqlite3XPrintf(StrAccum *p, u32 bFlags, const char *zFormat, ...){
  va_list ap;
  va_start(ap,zFormat);
  sqlite3VXPrintf(p, bFlags, zFormat, ap);
  va_end(ap);
}







|
>







1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
  fprintf(stdout,"%s", zBuf);
  fflush(stdout);
}
#endif


/*
** variable-argument wrapper around sqlite3VXPrintf().  The bFlags argument
** can contain the bit SQLITE_PRINTF_INTERNAL enable internal formats.
*/
void sqlite3XPrintf(StrAccum *p, u32 bFlags, const char *zFormat, ...){
  va_list ap;
  va_start(ap,zFormat);
  sqlite3VXPrintf(p, bFlags, zFormat, ap);
  va_end(ap);
}
Changes to src/select.c.
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
  Vdbe *v,          /* Generate code into this VM */
  int iOffset,      /* Register holding the offset counter */
  int iContinue     /* Jump here to skip the current record */
){
  if( iOffset>0 ){
    int addr;
    addr = sqlite3VdbeAddOp3(v, OP_IfNeg, iOffset, 0, -1); VdbeCoverage(v);
    sqlite3VdbeAddOp2(v, OP_Goto, 0, iContinue);
    VdbeComment((v, "skip OFFSET records"));
    sqlite3VdbeJumpHere(v, addr);
  }
}

/*
** Add code that will check to make sure the N registers starting at iMem







|







593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
  Vdbe *v,          /* Generate code into this VM */
  int iOffset,      /* Register holding the offset counter */
  int iContinue     /* Jump here to skip the current record */
){
  if( iOffset>0 ){
    int addr;
    addr = sqlite3VdbeAddOp3(v, OP_IfNeg, iOffset, 0, -1); VdbeCoverage(v);
    sqlite3VdbeGoto(v, iContinue);
    VdbeComment((v, "skip OFFSET records"));
    sqlite3VdbeJumpHere(v, addr);
  }
}

/*
** Add code that will check to make sure the N registers starting at iMem
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
  int bSeq;                       /* True if sorter record includes seq. no. */
#ifdef SQLITE_ENABLE_EXPLAIN_COMMENTS
  struct ExprList_item *aOutEx = p->pEList->a;
#endif

  if( pSort->labelBkOut ){
    sqlite3VdbeAddOp2(v, OP_Gosub, pSort->regReturn, pSort->labelBkOut);
    sqlite3VdbeAddOp2(v, OP_Goto, 0, addrBreak);
    sqlite3VdbeResolveLabel(v, pSort->labelBkOut);
  }
  iTab = pSort->iECursor;
  if( eDest==SRT_Output || eDest==SRT_Coroutine ){
    regRowid = 0;
    regRow = pDest->iSdst;
    nSortData = nColumn;







|







1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
  int bSeq;                       /* True if sorter record includes seq. no. */
#ifdef SQLITE_ENABLE_EXPLAIN_COMMENTS
  struct ExprList_item *aOutEx = p->pEList->a;
#endif

  if( pSort->labelBkOut ){
    sqlite3VdbeAddOp2(v, OP_Gosub, pSort->regReturn, pSort->labelBkOut);
    sqlite3VdbeGoto(v, addrBreak);
    sqlite3VdbeResolveLabel(v, pSort->labelBkOut);
  }
  iTab = pSort->iECursor;
  if( eDest==SRT_Output || eDest==SRT_Coroutine ){
    regRowid = 0;
    regRow = pDest->iSdst;
    nSortData = nColumn;
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
    p->iLimit = iLimit = ++pParse->nMem;
    v = sqlite3GetVdbe(pParse);
    assert( v!=0 );
    if( sqlite3ExprIsInteger(p->pLimit, &n) ){
      sqlite3VdbeAddOp2(v, OP_Integer, n, iLimit);
      VdbeComment((v, "LIMIT counter"));
      if( n==0 ){
        sqlite3VdbeAddOp2(v, OP_Goto, 0, iBreak);
      }else if( n>=0 && p->nSelectRow>(u64)n ){
        p->nSelectRow = n;
      }
    }else{
      sqlite3ExprCode(pParse, p->pLimit, iLimit);
      sqlite3VdbeAddOp1(v, OP_MustBeInt, iLimit); VdbeCoverage(v);
      VdbeComment((v, "LIMIT counter"));







|







1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
    p->iLimit = iLimit = ++pParse->nMem;
    v = sqlite3GetVdbe(pParse);
    assert( v!=0 );
    if( sqlite3ExprIsInteger(p->pLimit, &n) ){
      sqlite3VdbeAddOp2(v, OP_Integer, n, iLimit);
      VdbeComment((v, "LIMIT counter"));
      if( n==0 ){
        sqlite3VdbeGoto(v, iBreak);
      }else if( n>=0 && p->nSelectRow>(u64)n ){
        p->nSelectRow = n;
      }
    }else{
      sqlite3ExprCode(pParse, p->pLimit, iLimit);
      sqlite3VdbeAddOp1(v, OP_MustBeInt, iLimit); VdbeCoverage(v);
      VdbeComment((v, "LIMIT counter"));
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
    p->pPrior = 0;
    sqlite3Select(pParse, p, &destQueue);
    assert( p->pPrior==0 );
    p->pPrior = pSetup;
  }

  /* Keep running the loop until the Queue is empty */
  sqlite3VdbeAddOp2(v, OP_Goto, 0, addrTop);
  sqlite3VdbeResolveLabel(v, addrBreak);

end_of_recursive_query:
  sqlite3ExprListDelete(pParse->db, p->pOrderBy);
  p->pOrderBy = pOrderBy;
  p->pLimit = pLimit;
  p->pOffset = pOffset;







|







2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
    p->pPrior = 0;
    sqlite3Select(pParse, p, &destQueue);
    assert( p->pPrior==0 );
    p->pPrior = pSetup;
  }

  /* Keep running the loop until the Queue is empty */
  sqlite3VdbeGoto(v, addrTop);
  sqlite3VdbeResolveLabel(v, addrBreak);

end_of_recursive_query:
  sqlite3ExprListDelete(pParse->db, p->pOrderBy);
  p->pOrderBy = pOrderBy;
  p->pLimit = pLimit;
  p->pOffset = pOffset;
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
  if( op==TK_EXCEPT || op==TK_INTERSECT ){
    addrEofA_noB = addrEofA = labelEnd;
  }else{  
    VdbeNoopComment((v, "eof-A subroutine"));
    addrEofA = sqlite3VdbeAddOp2(v, OP_Gosub, regOutB, addrOutB);
    addrEofA_noB = sqlite3VdbeAddOp2(v, OP_Yield, regAddrB, labelEnd);
                                     VdbeCoverage(v);
    sqlite3VdbeAddOp2(v, OP_Goto, 0, addrEofA);
    p->nSelectRow += pPrior->nSelectRow;
  }

  /* Generate a subroutine to run when the results from select B
  ** are exhausted and only data in select A remains.
  */
  if( op==TK_INTERSECT ){
    addrEofB = addrEofA;
    if( p->nSelectRow > pPrior->nSelectRow ) p->nSelectRow = pPrior->nSelectRow;
  }else{  
    VdbeNoopComment((v, "eof-B subroutine"));
    addrEofB = sqlite3VdbeAddOp2(v, OP_Gosub, regOutA, addrOutA);
    sqlite3VdbeAddOp2(v, OP_Yield, regAddrA, labelEnd); VdbeCoverage(v);
    sqlite3VdbeAddOp2(v, OP_Goto, 0, addrEofB);
  }

  /* Generate code to handle the case of A<B
  */
  VdbeNoopComment((v, "A-lt-B subroutine"));
  addrAltB = sqlite3VdbeAddOp2(v, OP_Gosub, regOutA, addrOutA);
  sqlite3VdbeAddOp2(v, OP_Yield, regAddrA, addrEofA); VdbeCoverage(v);
  sqlite3VdbeAddOp2(v, OP_Goto, 0, labelCmpr);

  /* Generate code to handle the case of A==B
  */
  if( op==TK_ALL ){
    addrAeqB = addrAltB;
  }else if( op==TK_INTERSECT ){
    addrAeqB = addrAltB;
    addrAltB++;
  }else{
    VdbeNoopComment((v, "A-eq-B subroutine"));
    addrAeqB =
    sqlite3VdbeAddOp2(v, OP_Yield, regAddrA, addrEofA); VdbeCoverage(v);
    sqlite3VdbeAddOp2(v, OP_Goto, 0, labelCmpr);
  }

  /* Generate code to handle the case of A>B
  */
  VdbeNoopComment((v, "A-gt-B subroutine"));
  addrAgtB = sqlite3VdbeCurrentAddr(v);
  if( op==TK_ALL || op==TK_UNION ){
    sqlite3VdbeAddOp2(v, OP_Gosub, regOutB, addrOutB);
  }
  sqlite3VdbeAddOp2(v, OP_Yield, regAddrB, addrEofB); VdbeCoverage(v);
  sqlite3VdbeAddOp2(v, OP_Goto, 0, labelCmpr);

  /* This code runs once to initialize everything.
  */
  sqlite3VdbeJumpHere(v, j1);
  sqlite3VdbeAddOp2(v, OP_Yield, regAddrA, addrEofA_noB); VdbeCoverage(v);
  sqlite3VdbeAddOp2(v, OP_Yield, regAddrB, addrEofB); VdbeCoverage(v);








|













|







|












|










|







2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
  if( op==TK_EXCEPT || op==TK_INTERSECT ){
    addrEofA_noB = addrEofA = labelEnd;
  }else{  
    VdbeNoopComment((v, "eof-A subroutine"));
    addrEofA = sqlite3VdbeAddOp2(v, OP_Gosub, regOutB, addrOutB);
    addrEofA_noB = sqlite3VdbeAddOp2(v, OP_Yield, regAddrB, labelEnd);
                                     VdbeCoverage(v);
    sqlite3VdbeGoto(v, addrEofA);
    p->nSelectRow += pPrior->nSelectRow;
  }

  /* Generate a subroutine to run when the results from select B
  ** are exhausted and only data in select A remains.
  */
  if( op==TK_INTERSECT ){
    addrEofB = addrEofA;
    if( p->nSelectRow > pPrior->nSelectRow ) p->nSelectRow = pPrior->nSelectRow;
  }else{  
    VdbeNoopComment((v, "eof-B subroutine"));
    addrEofB = sqlite3VdbeAddOp2(v, OP_Gosub, regOutA, addrOutA);
    sqlite3VdbeAddOp2(v, OP_Yield, regAddrA, labelEnd); VdbeCoverage(v);
    sqlite3VdbeGoto(v, addrEofB);
  }

  /* Generate code to handle the case of A<B
  */
  VdbeNoopComment((v, "A-lt-B subroutine"));
  addrAltB = sqlite3VdbeAddOp2(v, OP_Gosub, regOutA, addrOutA);
  sqlite3VdbeAddOp2(v, OP_Yield, regAddrA, addrEofA); VdbeCoverage(v);
  sqlite3VdbeGoto(v, labelCmpr);

  /* Generate code to handle the case of A==B
  */
  if( op==TK_ALL ){
    addrAeqB = addrAltB;
  }else if( op==TK_INTERSECT ){
    addrAeqB = addrAltB;
    addrAltB++;
  }else{
    VdbeNoopComment((v, "A-eq-B subroutine"));
    addrAeqB =
    sqlite3VdbeAddOp2(v, OP_Yield, regAddrA, addrEofA); VdbeCoverage(v);
    sqlite3VdbeGoto(v, labelCmpr);
  }

  /* Generate code to handle the case of A>B
  */
  VdbeNoopComment((v, "A-gt-B subroutine"));
  addrAgtB = sqlite3VdbeCurrentAddr(v);
  if( op==TK_ALL || op==TK_UNION ){
    sqlite3VdbeAddOp2(v, OP_Gosub, regOutB, addrOutB);
  }
  sqlite3VdbeAddOp2(v, OP_Yield, regAddrB, addrEofB); VdbeCoverage(v);
  sqlite3VdbeGoto(v, labelCmpr);

  /* This code runs once to initialize everything.
  */
  sqlite3VdbeJumpHere(v, j1);
  sqlite3VdbeAddOp2(v, OP_Yield, regAddrA, addrEofA_noB); VdbeCoverage(v);
  sqlite3VdbeAddOp2(v, OP_Yield, regAddrB, addrEofB); VdbeCoverage(v);

5071
5072
5073
5074
5075
5076
5077
5078
5079
5080
5081
5082
5083
5084
5085

  /* Set the limiter.
  */
  iEnd = sqlite3VdbeMakeLabel(v);
  p->nSelectRow = LARGEST_INT64;
  computeLimitRegisters(pParse, p, iEnd);
  if( p->iLimit==0 && sSort.addrSortIndex>=0 ){
    sqlite3VdbeGetOp(v, sSort.addrSortIndex)->opcode = OP_SorterOpen;
    sSort.sortFlags |= SORTFLAG_UseSorter;
  }

  /* Open an ephemeral index to use for the distinct set.
  */
  if( p->selFlags & SF_Distinct ){
    sDistinct.tabTnct = pParse->nTab++;







|







5071
5072
5073
5074
5075
5076
5077
5078
5079
5080
5081
5082
5083
5084
5085

  /* Set the limiter.
  */
  iEnd = sqlite3VdbeMakeLabel(v);
  p->nSelectRow = LARGEST_INT64;
  computeLimitRegisters(pParse, p, iEnd);
  if( p->iLimit==0 && sSort.addrSortIndex>=0 ){
    sqlite3VdbeChangeOpcode(v, sSort.addrSortIndex, OP_SorterOpen);
    sSort.sortFlags |= SORTFLAG_UseSorter;
  }

  /* Open an ephemeral index to use for the distinct set.
  */
  if( p->selFlags & SF_Distinct ){
    sDistinct.tabTnct = pParse->nTab++;
5399
5400
5401
5402
5403
5404
5405
5406
5407
5408
5409
5410
5411
5412
5413
      /* Output the final row of result
      */
      sqlite3VdbeAddOp2(v, OP_Gosub, regOutputRow, addrOutputRow);
      VdbeComment((v, "output final row"));

      /* Jump over the subroutines
      */
      sqlite3VdbeAddOp2(v, OP_Goto, 0, addrEnd);

      /* Generate a subroutine that outputs a single row of the result
      ** set.  This subroutine first looks at the iUseFlag.  If iUseFlag
      ** is less than or equal to zero, the subroutine is a no-op.  If
      ** the processing calls for the query to abort, this subroutine
      ** increments the iAbortFlag memory location before returning in
      ** order to signal the caller to abort.







|







5399
5400
5401
5402
5403
5404
5405
5406
5407
5408
5409
5410
5411
5412
5413
      /* Output the final row of result
      */
      sqlite3VdbeAddOp2(v, OP_Gosub, regOutputRow, addrOutputRow);
      VdbeComment((v, "output final row"));

      /* Jump over the subroutines
      */
      sqlite3VdbeGoto(v, addrEnd);

      /* Generate a subroutine that outputs a single row of the result
      ** set.  This subroutine first looks at the iUseFlag.  If iUseFlag
      ** is less than or equal to zero, the subroutine is a no-op.  If
      ** the processing calls for the query to abort, this subroutine
      ** increments the iAbortFlag memory location before returning in
      ** order to signal the caller to abort.
5553
5554
5555
5556
5557
5558
5559
5560
5561
5562
5563
5564
5565
5566
5567
        if( pWInfo==0 ){
          sqlite3ExprListDelete(db, pDel);
          goto select_end;
        }
        updateAccumulator(pParse, &sAggInfo);
        assert( pMinMax==0 || pMinMax->nExpr==1 );
        if( sqlite3WhereIsOrdered(pWInfo)>0 ){
          sqlite3VdbeAddOp2(v, OP_Goto, 0, sqlite3WhereBreakLabel(pWInfo));
          VdbeComment((v, "%s() by index",
                (flag==WHERE_ORDERBY_MIN?"min":"max")));
        }
        sqlite3WhereEnd(pWInfo);
        finalizeAggFunctions(pParse, &sAggInfo);
      }








|







5553
5554
5555
5556
5557
5558
5559
5560
5561
5562
5563
5564
5565
5566
5567
        if( pWInfo==0 ){
          sqlite3ExprListDelete(db, pDel);
          goto select_end;
        }
        updateAccumulator(pParse, &sAggInfo);
        assert( pMinMax==0 || pMinMax->nExpr==1 );
        if( sqlite3WhereIsOrdered(pWInfo)>0 ){
          sqlite3VdbeGoto(v, sqlite3WhereBreakLabel(pWInfo));
          VdbeComment((v, "%s() by index",
                (flag==WHERE_ORDERBY_MIN?"min":"max")));
        }
        sqlite3WhereEnd(pWInfo);
        finalizeAggFunctions(pParse, &sAggInfo);
      }

Changes to src/update.c.
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
  */
  if( okOnePass ){
    /* Nothing to do at end-of-loop for a single-pass */
  }else if( pPk ){
    sqlite3VdbeResolveLabel(v, labelContinue);
    sqlite3VdbeAddOp2(v, OP_Next, iEph, addrTop); VdbeCoverage(v);
  }else{
    sqlite3VdbeAddOp2(v, OP_Goto, 0, labelContinue);
  }
  sqlite3VdbeResolveLabel(v, labelBreak);

  /* Close all tables */
  for(i=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, i++){
    assert( aRegIdx );
    if( aToOpen[i+1] ){







|







627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
  */
  if( okOnePass ){
    /* Nothing to do at end-of-loop for a single-pass */
  }else if( pPk ){
    sqlite3VdbeResolveLabel(v, labelContinue);
    sqlite3VdbeAddOp2(v, OP_Next, iEph, addrTop); VdbeCoverage(v);
  }else{
    sqlite3VdbeGoto(v, labelContinue);
  }
  sqlite3VdbeResolveLabel(v, labelBreak);

  /* Close all tables */
  for(i=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, i++){
    assert( aRegIdx );
    if( aToOpen[i+1] ){
Changes to src/util.c.
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
}

/*
** Return the number of bytes that will be needed to store the given
** 64-bit integer.
*/
int sqlite3VarintLen(u64 v){
  int i = 0;
  do{
    i++;
    v >>= 7;
  }while( v!=0 && ALWAYS(i<9) );
  return i;
}


/*
** Read or write a four-byte big-endian integer value.
*/







|
<
<
|
<







1061
1062
1063
1064
1065
1066
1067
1068


1069

1070
1071
1072
1073
1074
1075
1076
}

/*
** Return the number of bytes that will be needed to store the given
** 64-bit integer.
*/
int sqlite3VarintLen(u64 v){
  int i;


  for(i=1; (v >>= 7)!=0; i++){ assert( i<9 ); }

  return i;
}


/*
** Read or write a four-byte big-endian integer value.
*/
Changes to src/vdbe.h.
165
166
167
168
169
170
171



172
173
174
175
176
177

178
179
180
181
182
183
184
** Prototypes for the VDBE interface.  See comments on the implementation
** for a description of what each of these routines does.
*/
Vdbe *sqlite3VdbeCreate(Parse*);
int sqlite3VdbeAddOp0(Vdbe*,int);
int sqlite3VdbeAddOp1(Vdbe*,int,int);
int sqlite3VdbeAddOp2(Vdbe*,int,int,int);



int sqlite3VdbeAddOp3(Vdbe*,int,int,int,int);
int sqlite3VdbeAddOp4(Vdbe*,int,int,int,int,const char *zP4,int);
int sqlite3VdbeAddOp4Dup8(Vdbe*,int,int,int,int,const u8*,int);
int sqlite3VdbeAddOp4Int(Vdbe*,int,int,int,int,int);
int sqlite3VdbeAddOpList(Vdbe*, int nOp, VdbeOpList const *aOp, int iLineno);
void sqlite3VdbeAddParseSchemaOp(Vdbe*,int,char*);

void sqlite3VdbeChangeP1(Vdbe*, u32 addr, int P1);
void sqlite3VdbeChangeP2(Vdbe*, u32 addr, int P2);
void sqlite3VdbeChangeP3(Vdbe*, u32 addr, int P3);
void sqlite3VdbeChangeP5(Vdbe*, u8 P5);
void sqlite3VdbeJumpHere(Vdbe*, int addr);
void sqlite3VdbeChangeToNoop(Vdbe*, int addr);
int sqlite3VdbeDeletePriorOpcode(Vdbe*, u8 op);







>
>
>






>







165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
** Prototypes for the VDBE interface.  See comments on the implementation
** for a description of what each of these routines does.
*/
Vdbe *sqlite3VdbeCreate(Parse*);
int sqlite3VdbeAddOp0(Vdbe*,int);
int sqlite3VdbeAddOp1(Vdbe*,int,int);
int sqlite3VdbeAddOp2(Vdbe*,int,int,int);
int sqlite3VdbeGoto(Vdbe*,int);
int sqlite3VdbeLoadString(Vdbe*,int,const char*);
void sqlite3VdbeMultiLoad(Vdbe*,int,const char*,...);
int sqlite3VdbeAddOp3(Vdbe*,int,int,int,int);
int sqlite3VdbeAddOp4(Vdbe*,int,int,int,int,const char *zP4,int);
int sqlite3VdbeAddOp4Dup8(Vdbe*,int,int,int,int,const u8*,int);
int sqlite3VdbeAddOp4Int(Vdbe*,int,int,int,int,int);
int sqlite3VdbeAddOpList(Vdbe*, int nOp, VdbeOpList const *aOp, int iLineno);
void sqlite3VdbeAddParseSchemaOp(Vdbe*,int,char*);
void sqlite3VdbeChangeOpcode(Vdbe*, u32 addr, u8);
void sqlite3VdbeChangeP1(Vdbe*, u32 addr, int P1);
void sqlite3VdbeChangeP2(Vdbe*, u32 addr, int P2);
void sqlite3VdbeChangeP3(Vdbe*, u32 addr, int P3);
void sqlite3VdbeChangeP5(Vdbe*, u8 P5);
void sqlite3VdbeJumpHere(Vdbe*, int addr);
void sqlite3VdbeChangeToNoop(Vdbe*, int addr);
int sqlite3VdbeDeletePriorOpcode(Vdbe*, u8 op);
Changes to src/vdbeaux.c.
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
}

/*
** Return the SQL associated with a prepared statement
*/
const char *sqlite3_sql(sqlite3_stmt *pStmt){
  Vdbe *p = (Vdbe *)pStmt;
  return (p && p->isPrepareV2) ? p->zSql : 0;
}

/*
** Swap all content between two VDBE structures.
*/
void sqlite3VdbeSwap(Vdbe *pA, Vdbe *pB){
  Vdbe tmp, *pTmp;







|







64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
}

/*
** Return the SQL associated with a prepared statement
*/
const char *sqlite3_sql(sqlite3_stmt *pStmt){
  Vdbe *p = (Vdbe *)pStmt;
  return p ? p->zSql : 0;
}

/*
** Swap all content between two VDBE structures.
*/
void sqlite3VdbeSwap(Vdbe *pA, Vdbe *pB){
  Vdbe tmp, *pTmp;
211
212
213
214
215
216
217






































218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237

238
239
240
241
242
243
244
int sqlite3VdbeAddOp1(Vdbe *p, int op, int p1){
  return sqlite3VdbeAddOp3(p, op, p1, 0, 0);
}
int sqlite3VdbeAddOp2(Vdbe *p, int op, int p1, int p2){
  return sqlite3VdbeAddOp3(p, op, p1, p2, 0);
}








































/*
** Add an opcode that includes the p4 value as a pointer.
*/
int sqlite3VdbeAddOp4(
  Vdbe *p,            /* Add the opcode to this VM */
  int op,             /* The new opcode */
  int p1,             /* The P1 operand */
  int p2,             /* The P2 operand */
  int p3,             /* The P3 operand */
  const char *zP4,    /* The P4 operand */
  int p4type          /* P4 operand type */
){
  int addr = sqlite3VdbeAddOp3(p, op, p1, p2, p3);
  sqlite3VdbeChangeP4(p, addr, zP4, p4type);
  return addr;
}

/*
** Add an opcode that includes the p4 value with a P4_INT64 type.

*/
int sqlite3VdbeAddOp4Dup8(
  Vdbe *p,            /* Add the opcode to this VM */
  int op,             /* The new opcode */
  int p1,             /* The P1 operand */
  int p2,             /* The P2 operand */
  int p3,             /* The P3 operand */







>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>



















|
>







211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
int sqlite3VdbeAddOp1(Vdbe *p, int op, int p1){
  return sqlite3VdbeAddOp3(p, op, p1, 0, 0);
}
int sqlite3VdbeAddOp2(Vdbe *p, int op, int p1, int p2){
  return sqlite3VdbeAddOp3(p, op, p1, p2, 0);
}

/* Generate code for an unconditional jump to instruction iDest
*/
int sqlite3VdbeGoto(Vdbe *p, int iDest){
  return sqlite3VdbeAddOp3(p, OP_Goto, 0, iDest, 0);
}

/* Generate code to cause the string zStr to be loaded into
** register iDest
*/
int sqlite3VdbeLoadString(Vdbe *p, int iDest, const char *zStr){
  return sqlite3VdbeAddOp4(p, OP_String8, 0, iDest, 0, zStr, 0);
}

/*
** Generate code that initializes multiple registers to string or integer
** constants.  The registers begin with iDest and increase consecutively.
** One register is initialized for each characgter in zTypes[].  For each
** "s" character in zTypes[], the register is a string if the argument is
** not NULL, or OP_Null if the value is a null pointer.  For each "i" character
** in zTypes[], the register is initialized to an integer.
*/
void sqlite3VdbeMultiLoad(Vdbe *p, int iDest, const char *zTypes, ...){
  va_list ap;
  int i;
  char c;
  va_start(ap, zTypes);
  for(i=0; (c = zTypes[i])!=0; i++){
    if( c=='s' ){
      const char *z = va_arg(ap, const char*);
      int addr = sqlite3VdbeAddOp2(p, z==0 ? OP_Null : OP_String8, 0, iDest++);
      if( z ) sqlite3VdbeChangeP4(p, addr, z, 0);
    }else{
      assert( c=='i' );
      sqlite3VdbeAddOp2(p, OP_Integer, va_arg(ap, int), iDest++);
    }
  }
  va_end(ap);
}

/*
** Add an opcode that includes the p4 value as a pointer.
*/
int sqlite3VdbeAddOp4(
  Vdbe *p,            /* Add the opcode to this VM */
  int op,             /* The new opcode */
  int p1,             /* The P1 operand */
  int p2,             /* The P2 operand */
  int p3,             /* The P3 operand */
  const char *zP4,    /* The P4 operand */
  int p4type          /* P4 operand type */
){
  int addr = sqlite3VdbeAddOp3(p, op, p1, p2, p3);
  sqlite3VdbeChangeP4(p, addr, zP4, p4type);
  return addr;
}

/*
** Add an opcode that includes the p4 value with a P4_INT64 or
** P4_REAL type.
*/
int sqlite3VdbeAddOp4Dup8(
  Vdbe *p,            /* Add the opcode to this VM */
  int op,             /* The new opcode */
  int p1,             /* The P1 operand */
  int p2,             /* The P2 operand */
  int p3,             /* The P3 operand */
315
316
317
318
319
320
321

322
323
324
325
326
327
328
329
** a prior call to sqlite3VdbeMakeLabel().
*/
void sqlite3VdbeResolveLabel(Vdbe *v, int x){
  Parse *p = v->pParse;
  int j = -1-x;
  assert( v->magic==VDBE_MAGIC_INIT );
  assert( j<p->nLabel );

  if( ALWAYS(j>=0) && p->aLabel ){
    p->aLabel[j] = v->nOp;
  }
  p->iFixedOp = v->nOp - 1;
}

/*
** Mark the VDBE as one that can only be run one time.







>
|







354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
** a prior call to sqlite3VdbeMakeLabel().
*/
void sqlite3VdbeResolveLabel(Vdbe *v, int x){
  Parse *p = v->pParse;
  int j = -1-x;
  assert( v->magic==VDBE_MAGIC_INIT );
  assert( j<p->nLabel );
  assert( j>=0 );
  if( p->aLabel ){
    p->aLabel[j] = v->nOp;
  }
  p->iFixedOp = v->nOp - 1;
}

/*
** Mark the VDBE as one that can only be run one time.
459
460
461
462
463
464
465

466

467
468
469
470


471
472
473
474

475
476



477
478
479
480
481
482
483
  ** from failing.  */
  return ( v->db->mallocFailed || hasAbort==mayAbort || hasFkCounter
              || (hasCreateTable && hasInitCoroutine) );
}
#endif /* SQLITE_DEBUG - the sqlite3AssertMayAbort() function */

/*

** Loop through the program looking for P2 values that are negative

** on jump instructions.  Each such value is a label.  Resolve the
** label by setting the P2 value to its correct non-zero value.
**
** This routine is called once after all opcodes have been inserted.


**
** Variable *pMaxFuncArgs is set to the maximum value of any P2 argument 
** to an OP_Function, OP_AggStep or OP_VFilter opcode. This is used by 
** sqlite3VdbeMakeReady() to size the Vdbe.apArg[] array.

**
** The Op.opflags field is set on all opcodes.



*/
static void resolveP2Values(Vdbe *p, int *pMaxFuncArgs){
  int i;
  int nMaxArgs = *pMaxFuncArgs;
  Op *pOp;
  Parse *pParse = p->pParse;
  int *aLabel = pParse->aLabel;







>
|
>
|
|

<
>
>

<
<
|
>

<
>
>
>







499
500
501
502
503
504
505
506
507
508
509
510
511

512
513
514


515
516
517

518
519
520
521
522
523
524
525
526
527
  ** from failing.  */
  return ( v->db->mallocFailed || hasAbort==mayAbort || hasFkCounter
              || (hasCreateTable && hasInitCoroutine) );
}
#endif /* SQLITE_DEBUG - the sqlite3AssertMayAbort() function */

/*
** This routine is called after all opcodes have been inserted.  It loops
** through all the opcodes and fixes up some details.
**
** (1) For each jump instruction with a negative P2 value (a label)
**     resolve the P2 value to an actual address.
**

** (2) Compute the maximum number of arguments used by any SQL function
**     and store that value in *pMaxFuncArgs.
**


** (3) Update the Vdbe.readOnly and Vdbe.bIsReader flags to accurately
**     indicate what the prepared statement actually does.
**

** (4) Initialize the p4.xAdvance pointer on opcodes that use it.
**
** (5) Reclaim the memory allocated for storing labels.
*/
static void resolveP2Values(Vdbe *p, int *pMaxFuncArgs){
  int i;
  int nMaxArgs = *pMaxFuncArgs;
  Op *pOp;
  Parse *pParse = p->pParse;
  int *aLabel = pParse->aLabel;
582
583
584
585
586
587
588
589


590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
}

/*
** Add a whole list of operations to the operation stack.  Return the
** address of the first operation added.
*/
int sqlite3VdbeAddOpList(Vdbe *p, int nOp, VdbeOpList const *aOp, int iLineno){
  int addr;


  assert( p->magic==VDBE_MAGIC_INIT );
  if( p->nOp + nOp > p->pParse->nOpAlloc && growOpArray(p, nOp) ){
    return 0;
  }
  addr = p->nOp;
  if( ALWAYS(nOp>0) ){
    int i;
    VdbeOpList const *pIn = aOp;
    for(i=0; i<nOp; i++, pIn++){
      int p2 = pIn->p2;
      VdbeOp *pOut = &p->aOp[i+addr];
      pOut->opcode = pIn->opcode;
      pOut->p1 = pIn->p1;
      if( p2<0 ){
        assert( sqlite3OpcodeProperty[pOut->opcode] & OPFLG_JUMP );
        pOut->p2 = addr + ADDR(p2);
      }else{
        pOut->p2 = p2;
      }
      pOut->p3 = pIn->p3;
      pOut->p4type = P4_NOTUSED;
      pOut->p4.p = 0;
      pOut->p5 = 0;
#ifdef SQLITE_ENABLE_EXPLAIN_COMMENTS
      pOut->zComment = 0;
#endif
#ifdef SQLITE_VDBE_COVERAGE
      pOut->iSrcLine = iLineno+i;
#else
      (void)iLineno;
#endif
#ifdef SQLITE_DEBUG
      if( p->db->flags & SQLITE_VdbeAddopTrace ){
        sqlite3VdbePrintOp(0, i+addr, &p->aOp[i+addr]);
      }
#endif
    }
    p->nOp += nOp;
  }
  return addr;
}

#if defined(SQLITE_ENABLE_STMT_SCANSTATUS)
/*
** Add an entry to the array of counters managed by sqlite3_stmt_scanstatus().
*/







|
>
>





<
|
<
|
|
<
|
|
|
|
|
|
|
|
|
|
|
|

|


|

|


|
|
|

|
|
<







626
627
628
629
630
631
632
633
634
635
636
637
638
639
640

641

642
643

644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670

671
672
673
674
675
676
677
}

/*
** Add a whole list of operations to the operation stack.  Return the
** address of the first operation added.
*/
int sqlite3VdbeAddOpList(Vdbe *p, int nOp, VdbeOpList const *aOp, int iLineno){
  int addr, i;
  VdbeOp *pOut;
  assert( nOp>0 );
  assert( p->magic==VDBE_MAGIC_INIT );
  if( p->nOp + nOp > p->pParse->nOpAlloc && growOpArray(p, nOp) ){
    return 0;
  }
  addr = p->nOp;

  pOut = &p->aOp[addr];

  for(i=0; i<nOp; i++, aOp++, pOut++){
    int p2 = aOp->p2;

    pOut->opcode = aOp->opcode;
    pOut->p1 = aOp->p1;
    if( p2<0 ){
      assert( sqlite3OpcodeProperty[pOut->opcode] & OPFLG_JUMP );
      pOut->p2 = addr + ADDR(p2);
    }else{
      pOut->p2 = p2;
    }
    pOut->p3 = aOp->p3;
    pOut->p4type = P4_NOTUSED;
    pOut->p4.p = 0;
    pOut->p5 = 0;
#ifdef SQLITE_ENABLE_EXPLAIN_COMMENTS
    pOut->zComment = 0;
#endif
#ifdef SQLITE_VDBE_COVERAGE
    pOut->iSrcLine = iLineno+i;
#else
    (void)iLineno;
#endif
#ifdef SQLITE_DEBUG
    if( p->db->flags & SQLITE_VdbeAddopTrace ){
      sqlite3VdbePrintOp(0, i+addr, &p->aOp[i+addr]);
    }
#endif
  }
  p->nOp += nOp;

  return addr;
}

#if defined(SQLITE_ENABLE_STMT_SCANSTATUS)
/*
** Add an entry to the array of counters managed by sqlite3_stmt_scanstatus().
*/
654
655
656
657
658
659
660

661
662
663
664
665
666
667
668
669
670


671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712

713
714
715
716
717
718
719
    p->aScan = aNew;
  }
}
#endif


/*

** Change the value of the P1 operand for a specific instruction.
** This routine is useful when a large program is loaded from a
** static array using sqlite3VdbeAddOpList but we want to make a
** few minor changes to the program.
*/
void sqlite3VdbeChangeP1(Vdbe *p, u32 addr, int val){
  assert( p!=0 );
  if( ((u32)p->nOp)>addr ){
    p->aOp[addr].p1 = val;
  }


}

/*
** Change the value of the P2 operand for a specific instruction.
** This routine is useful for setting a jump destination.
*/
void sqlite3VdbeChangeP2(Vdbe *p, u32 addr, int val){
  assert( p!=0 );
  if( ((u32)p->nOp)>addr ){
    p->aOp[addr].p2 = val;
  }
}

/*
** Change the value of the P3 operand for a specific instruction.
*/
void sqlite3VdbeChangeP3(Vdbe *p, u32 addr, int val){
  assert( p!=0 );
  if( ((u32)p->nOp)>addr ){
    p->aOp[addr].p3 = val;
  }
}

/*
** Change the value of the P5 operand for the most recently
** added operation.
*/
void sqlite3VdbeChangeP5(Vdbe *p, u8 val){
  assert( p!=0 );
  if( p->aOp ){
    assert( p->nOp>0 );
    p->aOp[p->nOp-1].p5 = val;
  }
}

/*
** Change the P2 operand of instruction addr so that it points to
** the address of the next instruction to be coded.
*/
void sqlite3VdbeJumpHere(Vdbe *p, int addr){
  sqlite3VdbeChangeP2(p, addr, p->nOp);
  p->pParse->iFixedOp = p->nOp - 1;

}


/*
** If the input FuncDef structure is ephemeral, then free it.  If
** the FuncDef is not ephermal, then do nothing.
*/







>
|
<
<
<

|
<
<
|
|
>
>

<
<
<
<
<

<
<
|
|
<
<
<
<
<

<
<
|
|
<
<
<
<
<
<
|
<
<
<
|
<







<

>







696
697
698
699
700
701
702
703
704



705
706


707
708
709
710
711





712


713
714





715


716
717






718



719

720
721
722
723
724
725
726

727
728
729
730
731
732
733
734
735
    p->aScan = aNew;
  }
}
#endif


/*
** Change the value of the opcode, or P1, P2, P3, or P5 operands
** for a specific instruction.



*/
void sqlite3VdbeChangeOpcode(Vdbe *p, u32 addr, u8 iNewOpcode){


  sqlite3VdbeGetOp(p,addr)->opcode = iNewOpcode;
}
void sqlite3VdbeChangeP1(Vdbe *p, u32 addr, int val){
  sqlite3VdbeGetOp(p,addr)->p1 = val;
}





void sqlite3VdbeChangeP2(Vdbe *p, u32 addr, int val){


  sqlite3VdbeGetOp(p,addr)->p2 = val;
}





void sqlite3VdbeChangeP3(Vdbe *p, u32 addr, int val){


  sqlite3VdbeGetOp(p,addr)->p3 = val;
}






void sqlite3VdbeChangeP5(Vdbe *p, u8 p5){



  sqlite3VdbeGetOp(p,-1)->p5 = p5;

}

/*
** Change the P2 operand of instruction addr so that it points to
** the address of the next instruction to be coded.
*/
void sqlite3VdbeJumpHere(Vdbe *p, int addr){

  p->pParse->iFixedOp = p->nOp - 1;
  sqlite3VdbeChangeP2(p, addr, p->nOp);
}


/*
** If the input FuncDef structure is ephemeral, then free it.  If
** the FuncDef is not ephermal, then do nothing.
*/
Changes to src/vtab.c.
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
    sqlite3ChangeCookie(pParse, iDb);

    sqlite3VdbeAddOp2(v, OP_Expire, 0, 0);
    zWhere = sqlite3MPrintf(db, "name='%q' AND type='table'", pTab->zName);
    sqlite3VdbeAddParseSchemaOp(v, iDb, zWhere);

    iReg = ++pParse->nMem;
    sqlite3VdbeAddOp4(v, OP_String8, 0, iReg, 0, pTab->zName, 0);
    sqlite3VdbeAddOp2(v, OP_VCreate, iDb, iReg);
  }

  /* If we are rereading the sqlite_master table create the in-memory
  ** record of the table. The xConnect() method is not called until
  ** the first time the virtual table is used in an SQL statement. This
  ** allows a schema that contains virtual tables to be loaded before







|







419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
    sqlite3ChangeCookie(pParse, iDb);

    sqlite3VdbeAddOp2(v, OP_Expire, 0, 0);
    zWhere = sqlite3MPrintf(db, "name='%q' AND type='table'", pTab->zName);
    sqlite3VdbeAddParseSchemaOp(v, iDb, zWhere);

    iReg = ++pParse->nMem;
    sqlite3VdbeLoadString(v, iReg, pTab->zName);
    sqlite3VdbeAddOp2(v, OP_VCreate, iDb, iReg);
  }

  /* If we are rereading the sqlite_master table create the in-memory
  ** record of the table. The xConnect() method is not called until
  ** the first time the virtual table is used in an SQL statement. This
  ** allows a schema that contains virtual tables to be loaded before
Changes to src/where.c.
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
  regRecord = sqlite3GetTempReg(pParse);
  sqlite3GenerateIndexKey(pParse, pIdx, pLevel->iTabCur, regRecord, 0, 0, 0, 0);
  sqlite3VdbeAddOp2(v, OP_IdxInsert, pLevel->iIdxCur, regRecord);
  sqlite3VdbeChangeP5(v, OPFLAG_USESEEKRESULT);
  if( pPartial ) sqlite3VdbeResolveLabel(v, iContinue);
  if( pTabItem->fg.viaCoroutine ){
    translateColumnToCopy(v, addrTop, pLevel->iTabCur, pTabItem->regResult);
    sqlite3VdbeAddOp2(v, OP_Goto, 0, addrTop);
    pTabItem->fg.viaCoroutine = 0;
  }else{
    sqlite3VdbeAddOp2(v, OP_Next, pLevel->iTabCur, addrTop+1); VdbeCoverage(v);
  }
  sqlite3VdbeChangeP5(v, SQLITE_STMTSTATUS_AUTOINDEX);
  sqlite3VdbeJumpHere(v, addrTop);
  sqlite3ReleaseTempReg(pParse, regRecord);







|







748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
  regRecord = sqlite3GetTempReg(pParse);
  sqlite3GenerateIndexKey(pParse, pIdx, pLevel->iTabCur, regRecord, 0, 0, 0, 0);
  sqlite3VdbeAddOp2(v, OP_IdxInsert, pLevel->iIdxCur, regRecord);
  sqlite3VdbeChangeP5(v, OPFLAG_USESEEKRESULT);
  if( pPartial ) sqlite3VdbeResolveLabel(v, iContinue);
  if( pTabItem->fg.viaCoroutine ){
    translateColumnToCopy(v, addrTop, pLevel->iTabCur, pTabItem->regResult);
    sqlite3VdbeGoto(v, addrTop);
    pTabItem->fg.viaCoroutine = 0;
  }else{
    sqlite3VdbeAddOp2(v, OP_Next, pLevel->iTabCur, addrTop+1); VdbeCoverage(v);
  }
  sqlite3VdbeChangeP5(v, SQLITE_STMTSTATUS_AUTOINDEX);
  sqlite3VdbeJumpHere(v, addrTop);
  sqlite3ReleaseTempReg(pParse, regRecord);
4402
4403
4404
4405
4406
4407
4408
4409
4410
4411
4412
4413
4414
4415
4416
        VdbeCoverageIf(v, pIn->eEndLoopOp==OP_PrevIfOpen);
        VdbeCoverageIf(v, pIn->eEndLoopOp==OP_NextIfOpen);
        sqlite3VdbeJumpHere(v, pIn->addrInTop-1);
      }
    }
    sqlite3VdbeResolveLabel(v, pLevel->addrBrk);
    if( pLevel->addrSkip ){
      sqlite3VdbeAddOp2(v, OP_Goto, 0, pLevel->addrSkip);
      VdbeComment((v, "next skip-scan on %s", pLoop->u.btree.pIndex->zName));
      sqlite3VdbeJumpHere(v, pLevel->addrSkip);
      sqlite3VdbeJumpHere(v, pLevel->addrSkip-2);
    }
    if( pLevel->addrLikeRep ){
      int op;
      if( sqlite3VdbeGetOp(v, pLevel->addrLikeRep-1)->p1 ){







|







4402
4403
4404
4405
4406
4407
4408
4409
4410
4411
4412
4413
4414
4415
4416
        VdbeCoverageIf(v, pIn->eEndLoopOp==OP_PrevIfOpen);
        VdbeCoverageIf(v, pIn->eEndLoopOp==OP_NextIfOpen);
        sqlite3VdbeJumpHere(v, pIn->addrInTop-1);
      }
    }
    sqlite3VdbeResolveLabel(v, pLevel->addrBrk);
    if( pLevel->addrSkip ){
      sqlite3VdbeGoto(v, pLevel->addrSkip);
      VdbeComment((v, "next skip-scan on %s", pLoop->u.btree.pIndex->zName));
      sqlite3VdbeJumpHere(v, pLevel->addrSkip);
      sqlite3VdbeJumpHere(v, pLevel->addrSkip-2);
    }
    if( pLevel->addrLikeRep ){
      int op;
      if( sqlite3VdbeGetOp(v, pLevel->addrLikeRep-1)->p1 ){
4430
4431
4432
4433
4434
4435
4436
4437
4438
4439
4440
4441
4442
4443
4444
      }
      if( pLoop->wsFlags & WHERE_INDEXED ){
        sqlite3VdbeAddOp1(v, OP_NullRow, pLevel->iIdxCur);
      }
      if( pLevel->op==OP_Return ){
        sqlite3VdbeAddOp2(v, OP_Gosub, pLevel->p1, pLevel->addrFirst);
      }else{
        sqlite3VdbeAddOp2(v, OP_Goto, 0, pLevel->addrFirst);
      }
      sqlite3VdbeJumpHere(v, addr);
    }
    VdbeModuleComment((v, "End WHERE-loop%d: %s", i,
                     pWInfo->pTabList->a[pLevel->iFrom].pTab->zName));
  }








|







4430
4431
4432
4433
4434
4435
4436
4437
4438
4439
4440
4441
4442
4443
4444
      }
      if( pLoop->wsFlags & WHERE_INDEXED ){
        sqlite3VdbeAddOp1(v, OP_NullRow, pLevel->iIdxCur);
      }
      if( pLevel->op==OP_Return ){
        sqlite3VdbeAddOp2(v, OP_Gosub, pLevel->p1, pLevel->addrFirst);
      }else{
        sqlite3VdbeGoto(v, pLevel->addrFirst);
      }
      sqlite3VdbeJumpHere(v, addr);
    }
    VdbeModuleComment((v, "End WHERE-loop%d: %s", i,
                     pWInfo->pTabList->a[pLevel->iFrom].pTab->zName));
  }

Changes to src/wherecode.c.
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
  u16 nSkip = pLoop->nSkip;
  int i, j;

  if( nEq==0 && (pLoop->wsFlags&(WHERE_BTM_LIMIT|WHERE_TOP_LIMIT))==0 ) return;
  sqlite3StrAccumAppend(pStr, " (", 2);
  for(i=0; i<nEq; i++){
    const char *z = explainIndexColumnName(pIndex, i);
    if( i>=nSkip ){
      explainAppendTerm(pStr, i, z, "=");
    }else{
      if( i ) sqlite3StrAccumAppend(pStr, " AND ", 5);
      sqlite3XPrintf(pStr, 0, "ANY(%s)", z);
    }
  }

  j = i;
  if( pLoop->wsFlags&WHERE_BTM_LIMIT ){
    const char *z = explainIndexColumnName(pIndex, i);
    explainAppendTerm(pStr, i++, z, ">");
  }







<
<
<
|
|
<







71
72
73
74
75
76
77



78
79

80
81
82
83
84
85
86
  u16 nSkip = pLoop->nSkip;
  int i, j;

  if( nEq==0 && (pLoop->wsFlags&(WHERE_BTM_LIMIT|WHERE_TOP_LIMIT))==0 ) return;
  sqlite3StrAccumAppend(pStr, " (", 2);
  for(i=0; i<nEq; i++){
    const char *z = explainIndexColumnName(pIndex, i);



    if( i ) sqlite3StrAccumAppend(pStr, " AND ", 5);
    sqlite3XPrintf(pStr, 0, i>=nSkip ? "%s=?" : "ANY(%s)", z);

  }

  j = i;
  if( pLoop->wsFlags&WHERE_BTM_LIMIT ){
    const char *z = explainIndexColumnName(pIndex, i);
    explainAppendTerm(pStr, i++, z, ">");
  }
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
      }
      if( zFmt ){
        sqlite3StrAccumAppend(&str, " USING ", 7);
        sqlite3XPrintf(&str, 0, zFmt, pIdx->zName);
        explainIndexRange(&str, pLoop, pItem->pTab);
      }
    }else if( (flags & WHERE_IPK)!=0 && (flags & WHERE_CONSTRAINT)!=0 ){
      const char *zRange;
      if( flags&(WHERE_COLUMN_EQ|WHERE_COLUMN_IN) ){
        zRange = "(rowid=?)";
      }else if( (flags&WHERE_BOTH_LIMIT)==WHERE_BOTH_LIMIT ){
        zRange = "(rowid>? AND rowid<?)";
      }else if( flags&WHERE_BTM_LIMIT ){
        zRange = "(rowid>?)";
      }else{
        assert( flags&WHERE_TOP_LIMIT);
        zRange = "(rowid<?)";
      }
      sqlite3StrAccumAppendAll(&str, " USING INTEGER PRIMARY KEY ");
      sqlite3StrAccumAppendAll(&str, zRange);
    }
#ifndef SQLITE_OMIT_VIRTUALTABLE
    else if( (flags & WHERE_VIRTUALTABLE)!=0 ){
      sqlite3XPrintf(&str, 0, " VIRTUAL TABLE INDEX %d:%s",
                  pLoop->u.vtab.idxNum, pLoop->u.vtab.idxStr);
    }
#endif







|

|

|

|


|

|
<







165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183

184
185
186
187
188
189
190
      }
      if( zFmt ){
        sqlite3StrAccumAppend(&str, " USING ", 7);
        sqlite3XPrintf(&str, 0, zFmt, pIdx->zName);
        explainIndexRange(&str, pLoop, pItem->pTab);
      }
    }else if( (flags & WHERE_IPK)!=0 && (flags & WHERE_CONSTRAINT)!=0 ){
      const char *zRangeOp;
      if( flags&(WHERE_COLUMN_EQ|WHERE_COLUMN_IN) ){
        zRangeOp = "=";
      }else if( (flags&WHERE_BOTH_LIMIT)==WHERE_BOTH_LIMIT ){
        zRangeOp = ">? AND rowid<";
      }else if( flags&WHERE_BTM_LIMIT ){
        zRangeOp = ">";
      }else{
        assert( flags&WHERE_TOP_LIMIT);
        zRangeOp = "<";
      }
      sqlite3XPrintf(&str, 0, " USING INTEGER PRIMARY KEY (rowid%s?)",zRangeOp);

    }
#ifndef SQLITE_OMIT_VIRTUALTABLE
    else if( (flags & WHERE_VIRTUALTABLE)!=0 ){
      sqlite3XPrintf(&str, 0, " VIRTUAL TABLE INDEX %d:%s",
                  pLoop->u.vtab.idxNum, pLoop->u.vtab.idxStr);
    }
#endif
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
    pLevel->u.pCovidx = pCov;
    if( pCov ) pLevel->iIdxCur = iCovCur;
    if( pAndExpr ){
      pAndExpr->pLeft = 0;
      sqlite3ExprDelete(db, pAndExpr);
    }
    sqlite3VdbeChangeP1(v, iRetInit, sqlite3VdbeCurrentAddr(v));
    sqlite3VdbeAddOp2(v, OP_Goto, 0, pLevel->addrBrk);
    sqlite3VdbeResolveLabel(v, iLoopBody);

    if( pWInfo->nLevel>1 ) sqlite3StackFree(db, pOrTab);
    if( !untestedTerms ) disableTerm(pLevel, pTerm);
  }else
#endif /* SQLITE_OMIT_OR_OPTIMIZATION */








|







1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
    pLevel->u.pCovidx = pCov;
    if( pCov ) pLevel->iIdxCur = iCovCur;
    if( pAndExpr ){
      pAndExpr->pLeft = 0;
      sqlite3ExprDelete(db, pAndExpr);
    }
    sqlite3VdbeChangeP1(v, iRetInit, sqlite3VdbeCurrentAddr(v));
    sqlite3VdbeGoto(v, pLevel->addrBrk);
    sqlite3VdbeResolveLabel(v, iLoopBody);

    if( pWInfo->nLevel>1 ) sqlite3StackFree(db, pOrTab);
    if( !untestedTerms ) disableTerm(pLevel, pTerm);
  }else
#endif /* SQLITE_OMIT_OR_OPTIMIZATION */