SQLite

#else
      for(i=0; i<nCol; i++){
        i16 iCol = pIdx->aiColumn[i];
        sqlite3ExprCodeGetColumnOfTable(v, pTab, iTabCur, iCol, regCol+i);
      }
      sqlite3VdbeAddOp3(v, OP_MakeRecord, regCol, nCol+1, regSample);
#endif
      sqlite3VdbeAddOp3(v, OP_MakeRecord, regTabname, 6, regTemp);
      sqlite3VdbeAddOp2(v, OP_NewRowid, iStatCur+1, regNewRowid);
      sqlite3VdbeAddOp3(v, OP_Insert, iStatCur+1, regTemp, regNewRowid);
      sqlite3VdbeAddOp2(v, OP_Goto, 0, addrNext);
      sqlite3VdbeJumpHere(v, addrIsNull);
    }
#endif /* SQLITE_ENABLE_STAT3_OR_STAT4 */

      if( addrEphOpen ) sqlite3VdbeChangeToNoop(v, addrEphOpen);
      addrDelete = sqlite3VdbeAddOp0(v, OP_Goto); /* Jump to DELETE logic */
    }else if( pPk ){
      /* Construct a composite key for the row to be deleted and remember it */
      iKey = ++pParse->nMem;
      nKey = 0;   /* Zero tells OP_Found to use a composite key */
      sqlite3VdbeAddOp4(v, OP_MakeRecord, iPk, nPk, iKey,
                        sqlite3IndexAffinityStr(v, pPk), nPk);
      sqlite3VdbeAddOp2(v, OP_IdxInsert, iEphCur, iKey);
    }else{
      /* Get the rowid of the row to be deleted and remember it in the RowSet */
      nKey = 1;  /* OP_Seek always uses a single rowid */
      sqlite3VdbeAddOp2(v, OP_RowSetAdd, iRowSet, iKey);
    }
  

          }
          sqlite3VdbeAddOp3(v, OP_Ne, iChild, iJump, iParent);
          sqlite3VdbeChangeP5(v, SQLITE_JUMPIFNULL);
        }
        sqlite3VdbeAddOp2(v, OP_Goto, 0, iOk);
      }
  
      sqlite3VdbeAddOp4(v, OP_MakeRecord, regTemp, nCol, regRec,
                        sqlite3IndexAffinityStr(v,pIdx), nCol);
      sqlite3VdbeAddOp4Int(v, OP_Found, iCur, iOk, regRec, 0);
  
      sqlite3ReleaseTempReg(pParse, regRec);
      sqlite3ReleaseTempRange(pParse, regTemp, nCol);
    }
  }

    pIdx->zColAff[n] = 0;
  }
 
  return pIdx->zColAff;
}

/*

** Compute the affinity string for table pTab, if it has not already been
** computed.  As an optimization, omit trailing SQLITE_AFF_NONE affinities.
**
** If the affinity exists (if it is no entirely SQLITE_AFF_NONE values and
** if iReg>0 then code an OP_Affinity opcode that will set the affinities
** for register iReg and following.  Or if affinities exists and iReg==0,
** then just set the P4 operand of the previous opcode (which should  be
** an OP_MakeRecord) to the affinity string.
**
** A column affinity string has one character column:
**
**  Character      Column affinity
**  ------------------------------
**  'a'            TEXT
**  'b'            NONE
**  'c'            NUMERIC
**  'd'            INTEGER
**  'e'            REAL
*/
void sqlite3TableAffinity(Vdbe *v, Table *pTab, int iReg){
  int i;






  char *zColAff = pTab->zColAff;
  if( zColAff==0 ){

    sqlite3 *db = sqlite3VdbeDb(v);

    zColAff = (char *)sqlite3DbMallocRaw(0, pTab->nCol+1);
    if( !zColAff ){
      db->mallocFailed = 1;
      return;
    }

    for(i=0; i<pTab->nCol; i++){
      zColAff[i] = pTab->aCol[i].affinity;
    }
    do{
      zColAff[i--] = 0;
    }while( i>=0 && zColAff[i]==SQLITE_AFF_NONE );
    pTab->zColAff = zColAff;
  }
  i = sqlite3Strlen30(zColAff);
  if( i ){
    if( iReg ){
      sqlite3VdbeAddOp4(v, OP_Affinity, iReg, i, 0, zColAff, i);
    }else{
      sqlite3VdbeChangeP4(v, -1, zColAff, i);
    }
  }
}

/*
** Return non-zero if the table pTab in database iDb or any of its indices
** have been opened at any point in the VDBE program beginning at location
** iStartAddr throught the end of the program.  This is used to see if 
** a statement of the form  "INSERT INTO <iDb, pTab> SELECT ..." can 

    /* If this is an INSERT on a view with an INSTEAD OF INSERT trigger,
    ** do not attempt any conversions before assembling the record.
    ** If this is a real table, attempt conversions as required by the
    ** table column affinities.
    */
    if( !isView ){

      sqlite3TableAffinity(v, pTab, regCols+1);
    }

    /* Fire BEFORE or INSTEAD OF triggers */
    sqlite3CodeRowTrigger(pParse, pTrigger, TK_INSERT, 0, TRIGGER_BEFORE, 
        pTab, regCols-pTab->nCol-1, onError, endOfLoop);

    sqlite3ReleaseTempRange(pParse, regCols, pTab->nCol+1);

  int onError;         /* Conflict resolution strategy */
  int j1;              /* Addresss of jump instruction */
  int seenReplace = 0; /* True if REPLACE is used to resolve INT PK conflict */
  int nPkField;        /* Number of fields in PRIMARY KEY. 1 for ROWID tables */
  int ipkTop = 0;      /* Top of the rowid change constraint check */
  int ipkBottom = 0;   /* Bottom of the rowid change constraint check */
  u8 isUpdate;         /* True if this is an UPDATE operation */
  u8 bAffinityDone = 0;  /* True if the OP_Affinity operation has been run */
  int regRowid = -1;   /* Register holding ROWID value */

  isUpdate = regOldData!=0;
  db = pParse->db;
  v = sqlite3GetVdbe(pParse);
  assert( v!=0 );
  assert( pTab->pSelect==0 );  /* This table is not a VIEW */

  for(ix=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, ix++){
    int regIdx;          /* Range of registers hold conent for pIdx */
    int regR;            /* Range of registers holding conflicting PK */
    int iThisCur;        /* Cursor for this UNIQUE index */
    int addrUniqueOk;    /* Jump here if the UNIQUE constraint is satisfied */

    if( aRegIdx[ix]==0 ) continue;  /* Skip indices that do not change */
    if( bAffinityDone==0 ){
      sqlite3TableAffinity(v, pTab, regNewData+1);
      bAffinityDone = 1;
    }
    iThisCur = iIdxCur+ix;
    addrUniqueOk = sqlite3VdbeMakeLabel(v);

    /* Skip partial indices for which the WHERE clause is not true */
    if( pIdx->pPartIdxWhere ){
      sqlite3VdbeAddOp2(v, OP_Null, 0, aRegIdx[ix]);
      pParse->ckBase = regNewData+1;

      }else{
        x = iField + regNewData + 1;
      }
      sqlite3VdbeAddOp2(v, OP_SCopy, x, regIdx+i);
      VdbeComment((v, "%s", iField<0 ? "rowid" : pTab->aCol[iField].zName));
    }
    sqlite3VdbeAddOp3(v, OP_MakeRecord, regIdx, pIdx->nColumn, aRegIdx[ix]);

    VdbeComment((v, "for %s", pIdx->zName));
    sqlite3ExprCacheAffinityChange(pParse, regIdx, pIdx->nColumn);

    /* In an UPDATE operation, if this index is the PRIMARY KEY index 
    ** of a WITHOUT ROWID table and there has been no change the
    ** primary key, then no collision is possible.  The collision detection
    ** logic below can all be skipped. */

){
  Vdbe *v;            /* Prepared statements under construction */
  Index *pIdx;        /* An index being inserted or updated */
  u8 pik_flags;       /* flag values passed to the btree insert */
  int regData;        /* Content registers (after the rowid) */
  int regRec;         /* Register holding assemblied record for the table */
  int i;              /* Loop counter */
  u8 bAffinityDone = 0; /* True if OP_Affinity has been run already */

  v = sqlite3GetVdbe(pParse);
  assert( v!=0 );
  assert( pTab->pSelect==0 );  /* This table is not a VIEW */
  for(i=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, i++){
    if( aRegIdx[i]==0 ) continue;
    bAffinityDone = 1;
    if( pIdx->pPartIdxWhere ){
      sqlite3VdbeAddOp2(v, OP_IsNull, aRegIdx[i], sqlite3VdbeCurrentAddr(v)+2);
    }
    sqlite3VdbeAddOp2(v, OP_IdxInsert, iIdxCur+i, aRegIdx[i]);
    pik_flags = 0;
    if( useSeekResult ) pik_flags = OPFLAG_USESEEKRESULT;
    if( pIdx->autoIndex==2 && !HasRowid(pTab) ){
      assert( pParse->nested==0 );
      pik_flags |= OPFLAG_NCHANGE;
    }
    if( pik_flags )  sqlite3VdbeChangeP5(v, pik_flags);
  }
  if( !HasRowid(pTab) ) return;
  regData = regNewData + 1;
  regRec = sqlite3GetTempReg(pParse);
  sqlite3VdbeAddOp3(v, OP_MakeRecord, regData, pTab->nCol, regRec);
  if( !bAffinityDone ) sqlite3TableAffinity(v, pTab, 0);
  sqlite3ExprCacheAffinityChange(pParse, regData, pTab->nCol);
  if( pParse->nested ){
    pik_flags = 0;
  }else{
    pik_flags = OPFLAG_NCHANGE;
    pik_flags |= (isUpdate?OPFLAG_ISUPDATE:OPFLAG_LASTROWID);
  }

        }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);
          }
          if( pParent ){
            sqlite3VdbeAddOp4(v, OP_MakeRecord, regRow, pFK->nCol, regKey,

                              sqlite3IndexAffinityStr(v,pIdx), pFK->nCol);
            sqlite3VdbeAddOp4Int(v, OP_Found, i, addrOk, regKey, 0);
          }
        }
        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);

  (u8)(((u32)(B)<(u32)0x80)?(*(A)=(unsigned char)(B)),1:\
  sqlite3PutVarint32((A),(B)))
#define getVarint    sqlite3GetVarint
#define putVarint    sqlite3PutVarint


const char *sqlite3IndexAffinityStr(Vdbe *, Index *);
void sqlite3TableAffinity(Vdbe*, Table*, int);
char sqlite3CompareAffinity(Expr *pExpr, char aff2);
int sqlite3IndexAffinityOk(Expr *pExpr, char idx_affinity);
char sqlite3ExprAffinity(Expr *pExpr);
int sqlite3Atoi64(const char*, i64*, int, u8);
void sqlite3Error(sqlite3*, int, const char*,...);
void *sqlite3HexToBlob(sqlite3*, const char *z, int n);
u8 sqlite3HexToInt(int h);

    }
    if( okOnePass ){
      sqlite3VdbeChangeToNoop(v, addrOpen);
      nKey = nPk;
      regKey = iPk;
    }else{
      sqlite3VdbeAddOp4(v, OP_MakeRecord, iPk, nPk, regKey,
                        sqlite3IndexAffinityStr(v, pPk), nPk);
      sqlite3VdbeAddOp2(v, OP_IdxInsert, iEph, regKey);
    }
    sqlite3WhereEnd(pWInfo);
  }

  /* Initialize the count of updated rows
  */

    }
  }

  /* Fire any BEFORE UPDATE triggers. This happens before constraints are
  ** verified. One could argue that this is wrong.
  */
  if( tmask&TRIGGER_BEFORE ){

    sqlite3TableAffinity(v, pTab, regNew);
    sqlite3CodeRowTrigger(pParse, pTrigger, TK_UPDATE, pChanges, 
        TRIGGER_BEFORE, pTab, regOldRowid, onError, labelContinue);

    /* The row-trigger may have deleted the row being updated. In this
    ** case, jump to the next row. No updates or AFTER triggers are 
    ** required. This behavior - what happens when the row being updated
    ** is deleted or renamed by a BEFORE trigger - is left undefined in the

  zAffinity = pOp->p4.z;
  assert( zAffinity!=0 );
  assert( zAffinity[pOp->p2]==0 );
  pIn1 = &aMem[pOp->p1];
  while( (cAff = *(zAffinity++))!=0 ){
    assert( pIn1 <= &p->aMem[(p->nMem-p->nCursor)] );
    assert( memIsValid(pIn1) );

    applyAffinity(pIn1, cAff, encoding);
    pIn1++;
  }
  break;
}

/* Opcode: MakeRecord P1 P2 P3 P4 *

  /* Apply the requested affinity to all inputs
  */
  assert( pData0<=pLast );
  if( zAffinity ){
    pRec = pData0;
    do{
      applyAffinity(pRec++, *(zAffinity++), encoding);
      assert( zAffinity[0]==0 || pRec<=pLast );
    }while( zAffinity[0] );
  }

  /* Loop through the elements that will make up the record to figure
  ** out how much space is required for the new record.
  */
  pRec = pLast;
  do{