304   int iDataCur;          /* Cursor for the canonical data btree */  in sqlite3Update()  local
419   iBaseCur = iDataCur = pParse->nTab++;  in sqlite3Update()
420   iIdxCur = iDataCur+1;  in sqlite3Update()
425       iDataCur = pParse->nTab;  in sqlite3Update()
431     iDataCur = pUpsert->iDataCur;  in sqlite3Update()
435   pTabList->a[0].iCursor = iDataCur;  in sqlite3Update()
637         pWhere, pOrderBy, pLimit, iDataCur  in sqlite3Update()
703         if( isView ) iDataCur = iEph;  in sqlite3Update()
756           if( iCur>=0 && iCur!=iDataCur && aToOpen[iCur-iBaseCur] ){  in sqlite3Update()
759           assert( iCur!=iDataCur || !HasRowid(pTab) );  in sqlite3Update()
768       sqlite3VdbeAddOp2(v, OP_Rowid, iDataCur, regOldRowid);  in sqlite3Update()
783         sqlite3ExprCodeGetColumnOfTable(v, pTab, iDataCur,  in sqlite3Update()
824       if( aiCurOnePass[0]!=iDataCur  in sqlite3Update()
825        && aiCurOnePass[1]!=iDataCur  in sqlite3Update()
831         sqlite3VdbeAddOp4Int(v, OP_NotFound, iDataCur, labelBreak, regKey,nKey);  in sqlite3Update()
851                 v, OP_NotFound, iDataCur, labelContinue, iPk, nPk  in sqlite3Update()
856                 v, OP_NotExists, iDataCur, labelContinue, regOldRowid  in sqlite3Update()
862         sqlite3VdbeAddOp4Int(v, OP_NotFound, iDataCur, labelContinue, regKey,0);  in sqlite3Update()
870       sqlite3VdbeAddOp3(v, OP_NotExists, iDataCur, labelContinue, regOldRowid);  in sqlite3Update()
905         sqlite3ExprCodeGetColumnOfTable(v, pTab, iDataCur, i, k);  in sqlite3Update()
954         sqlite3ExprCodeGetColumnOfTable(v, pTab, iDataCur, i, k);  in sqlite3Update()
985         sqlite3VdbeAddOp4Int(v, OP_NotFound,iDataCur,labelContinue,regKey,nKey);  in sqlite3Update()
988         sqlite3VdbeAddOp3(v, OP_NotExists, iDataCur, labelContinue,regOldRowid);  in sqlite3Update()
1005           sqlite3ExprCodeGetColumnOfTable(v, pTab, iDataCur, i, k);  in sqlite3Update()
1021     sqlite3GenerateConstraintChecks(pParse, pTab, aRegIdx, iDataCur, iIdxCur,  in sqlite3Update()
1030         sqlite3VdbeAddOp4Int(v, OP_NotFound,iDataCur,labelContinue,regKey,nKey);  in sqlite3Update()
1032         sqlite3VdbeAddOp3(v, OP_NotExists, iDataCur, labelContinue,regOldRowid);  in sqlite3Update()
1043     sqlite3GenerateRowIndexDelete(pParse, pTab, iDataCur, iIdxCur, aRegIdx, -1);  in sqlite3Update()
1051       sqlite3VdbeAddOp1(v, OP_FinishSeek, iDataCur);  in sqlite3Update()
1065     sqlite3VdbeAddOp3(v, OP_Delete, iDataCur,  in sqlite3Update()
1078       sqlite3VdbeAddOp2(v, OP_Delete, iDataCur, 0);  in sqlite3Update()
1088         pParse, pTab, iDataCur, iIdxCur, regNewRowid, aRegIdx,   in sqlite3Update()