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Use Snapshot in heap access methods.

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This commit is contained in:
Vadim B. Mikheev
1998-07-27 19:38:40 +00:00
parent f7f989c990
commit be8300b18f
54 changed files with 352 additions and 339 deletions
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8
src/backend/optimizer/path/indxpath.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/indxpath.c,v 1.17 1998/07/18 04:22:31 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/indxpath.c,v 1.18 1998/07/27 19:37:58 vadim Exp $
*
*-------------------------------------------------------------------------
*/
@ -979,7 +979,7 @@ clause_pred_clause_test(Expr *predicate, Node *clause)
* will be used to find the associated strategy numbers for the test.
* --Nels, Jan '93
*/
scan = heap_beginscan(relation, false, false, 2, entry);
scan = heap_beginscan(relation, false, SnapshotNow, 2, entry);
tuple = heap_getnext(scan, false, (Buffer *) NULL);
if (!HeapTupleIsValid(tuple))
{
@ -1010,7 +1010,7 @@ clause_pred_clause_test(Expr *predicate, Node *clause)
F_OIDEQ,
ObjectIdGetDatum(clause_op));
scan = heap_beginscan(relation, false, false, 3, entry);
scan = heap_beginscan(relation, false, SnapshotNow, 3, entry);
tuple = heap_getnext(scan, false, (Buffer *) NULL);
if (!HeapTupleIsValid(tuple))
{
@ -1042,7 +1042,7 @@ clause_pred_clause_test(Expr *predicate, Node *clause)
F_INT2EQ,
Int16GetDatum(test_strategy));
scan = heap_beginscan(relation, false, false, 3, entry);
scan = heap_beginscan(relation, false, SnapshotNow, 3, entry);
tuple = heap_getnext(scan, false, (Buffer *) NULL);
if (!HeapTupleIsValid(tuple))
{