diff options
Diffstat (limited to 'src/expr.c')
| -rw-r--r-- | src/expr.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/src/expr.c b/src/expr.c index 2157cf4ed..7cd50e660 100644 --- a/src/expr.c +++ b/src/expr.c @@ -1443,11 +1443,11 @@ void sqlite3ClearOnOrUsing(sqlite3 *db, OnOrUsing *p){ ** ** The pExpr might be deleted immediately on an OOM error. ** -** The deferred delete is (currently) implemented by adding the -** pExpr to the pParse->pConstExpr list with a register number of 0. +** Return 0 if the delete was successfully deferred. Return non-zero +** if the delete happened immediately because of an OOM. */ -void sqlite3ExprDeferredDelete(Parse *pParse, Expr *pExpr){ - sqlite3ParserAddCleanup(pParse, sqlite3ExprDeleteGeneric, pExpr); +int sqlite3ExprDeferredDelete(Parse *pParse, Expr *pExpr){ + return 0==sqlite3ParserAddCleanup(pParse, sqlite3ExprDeleteGeneric, pExpr); } /* Invoke sqlite3RenameExprUnmap() and sqlite3ExprDelete() on the @@ -6680,9 +6680,8 @@ static int agginfoPersistExprCb(Walker *pWalker, Expr *pExpr){ && pAggInfo->aCol[iAgg].pCExpr==pExpr ){ pExpr = sqlite3ExprDup(db, pExpr, 0); - if( pExpr ){ + if( pExpr && !sqlite3ExprDeferredDelete(pParse, pExpr) ){ pAggInfo->aCol[iAgg].pCExpr = pExpr; - sqlite3ExprDeferredDelete(pParse, pExpr); } } }else{ @@ -6691,9 +6690,8 @@ static int agginfoPersistExprCb(Walker *pWalker, Expr *pExpr){ && pAggInfo->aFunc[iAgg].pFExpr==pExpr ){ pExpr = sqlite3ExprDup(db, pExpr, 0); - if( pExpr ){ + if( pExpr && !sqlite3ExprDeferredDelete(pParse, pExpr) ){ pAggInfo->aFunc[iAgg].pFExpr = pExpr; - sqlite3ExprDeferredDelete(pParse, pExpr); } } } |