From 493f72606b463a75ae4e2ee4e64d829e7f56066d Mon Sep 17 00:00:00 2001 From: Tom Lane Date: Sat, 11 Sep 2004 18:28:34 +0000 Subject: Renumber SnapshotNow and the other special snapshot codes so that ((Snapshot) NULL) can no longer be confused with a valid snapshot, as per my recent suggestion. Define a macro InvalidSnapshot for 0. Use InvalidSnapshot instead of SnapshotAny as the do-nothing special case for heap_update and heap_delete crosschecks; this seems a little cleaner even though the behavior is really the same. --- src/backend/executor/execUtils.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'src/backend/executor/execUtils.c') diff --git a/src/backend/executor/execUtils.c b/src/backend/executor/execUtils.c index 79ab787b07a..a1736766b26 100644 --- a/src/backend/executor/execUtils.c +++ b/src/backend/executor/execUtils.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/executor/execUtils.c,v 1.114 2004/08/29 05:06:42 momjian Exp $ + * $PostgreSQL: pgsql/src/backend/executor/execUtils.c,v 1.115 2004/09/11 18:28:34 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -179,7 +179,7 @@ CreateExecutorState(void) */ estate->es_direction = ForwardScanDirection; estate->es_snapshot = SnapshotNow; - estate->es_crosscheck_snapshot = SnapshotAny; /* means no crosscheck */ + estate->es_crosscheck_snapshot = InvalidSnapshot; /* no crosscheck */ estate->es_range_table = NIL; estate->es_result_relations = NULL; -- cgit v1.2.3