diff options
Diffstat (limited to 'src/backend/commands/command.c')
| -rw-r--r-- | src/backend/commands/command.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/src/backend/commands/command.c b/src/backend/commands/command.c index 618322645f3..30695a7a90b 100644 --- a/src/backend/commands/command.c +++ b/src/backend/commands/command.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/commands/Attic/command.c,v 1.119 2001/01/24 19:42:52 momjian Exp $ + * $Header: /cvsroot/pgsql/src/backend/commands/Attic/command.c,v 1.120 2001/01/29 00:39:20 tgl Exp $ * * NOTES * The PerformAddAttribute() code, like most of the relation @@ -1102,7 +1102,7 @@ AlterTableAddConstraint(char *relationName, bool successful = true; HeapScanDesc scan; ExprContext *econtext; - TupleTableSlot *slot = makeNode(TupleTableSlot); + TupleTableSlot *slot; HeapTuple tuple; RangeTblEntry *rte; List *qual; @@ -1169,28 +1169,28 @@ AlterTableAddConstraint(char *relationName, qual = makeList1(expr); + /* Make tuple slot to hold tuples */ + slot = MakeTupleTableSlot(); + ExecSetSlotDescriptor(slot, RelationGetDescr(rel), false); + /* Make an expression context for ExecQual */ + econtext = MakeExprContext(slot, CurrentMemoryContext); + /* - * Scan through the rows now, making the necessary things - * for ExecQual, and then call it to evaluate the - * expression. + * Scan through the rows now, checking the expression + * at each row. */ while (HeapTupleIsValid(tuple = heap_getnext(scan, 0))) { - slot->val = tuple; - slot->ttc_shouldFree = false; - slot->ttc_descIsNew = true; - slot->ttc_tupleDescriptor = rel->rd_att; - slot->ttc_buffer = InvalidBuffer; - - econtext = MakeExprContext(slot, CurrentMemoryContext); + ExecStoreTuple(tuple, slot, InvalidBuffer, false); if (!ExecQual(qual, econtext, true)) { successful=false; break; } - FreeExprContext(econtext); + ResetExprContext(econtext); } + FreeExprContext(econtext); pfree(slot); heap_endscan(scan); |