contrib/sqlite3/sqlite3.c

20765     struct WhereConst *pConst;                /* WHERE clause constants */  member
149682   WhereConst *pConst,  /* The WhereConst into which we are inserting */
149689   assert( sqlite3ExprIsConstant(pConst->pParse, pValue) );
149693   if( !sqlite3IsBinary(sqlite3ExprCompareCollSeq(pConst->pParse,pExpr)) ){
149699   for(i=0; i<pConst->nConst; i++){
149700     const Expr *pE2 = pConst->apExpr[i*2];
149710     pConst->bHasAffBlob = 1;
149713   pConst->nConst++;
149714   pConst->apExpr = sqlite3DbReallocOrFree(pConst->pParse->db, pConst->apExpr,
149715                          pConst->nConst*2*sizeof(Expr*));
149716   if( pConst->apExpr==0 ){
149717     pConst->nConst = 0;
149719     pConst->apExpr[pConst->nConst*2-2] = pColumn;
149720     pConst->apExpr[pConst->nConst*2-1] = pValue;
149730 static void findConstInWhere(WhereConst *pConst, Expr *pExpr){
149733   if( ExprHasProperty(pExpr, pConst->mExcludeOn) ){
149739     findConstInWhere(pConst, pExpr->pRight);
149740     findConstInWhere(pConst, pExpr->pLeft);
149748   if( pRight->op==TK_COLUMN && sqlite3ExprIsConstant(pConst->pParse, pLeft) ){
149749     constInsert(pConst,pRight,pLeft,pExpr);
149751   if( pLeft->op==TK_COLUMN && sqlite3ExprIsConstant(pConst->pParse, pRight) ){
149752     constInsert(pConst,pLeft,pRight,pExpr);
149766   WhereConst *pConst,
149771   if( pConst->pOomFault[0] ) return WRC_Prune;
149773   if( ExprHasProperty(pExpr, EP_FixedCol|pConst->mExcludeOn) ){
149779   for(i=0; i<pConst->nConst; i++){
149780     Expr *pColumn = pConst->apExpr[i*2];
149789     pConst->nChng++;
149793     pExpr->pLeft = sqlite3ExprDup(pConst->pParse->db, pConst->apExpr[i*2+1], 0);
149794     if( pConst->pParse->db->mallocFailed ) return WRC_Prune;
149817   WhereConst *pConst = pWalker->u.pConst;
149822   if( pConst->bHasAffBlob ){
149826       propagateConstantExprRewriteOne(pConst, pExpr->pLeft, 0);
149827       if( pConst->pOomFault[0] ) return WRC_Prune;
149829         propagateConstantExprRewriteOne(pConst, pExpr->pRight, 0);
149833   return propagateConstantExprRewriteOne(pConst, pExpr, pConst->bHasAffBlob);
149920       w.u.pConst = &x;