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-rw-r--r--contrib/pgstattuple/pgstattuple.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/contrib/pgstattuple/pgstattuple.c b/contrib/pgstattuple/pgstattuple.c
index 7f41ec3ad9..f9ba0a6c21 100644
--- a/contrib/pgstattuple/pgstattuple.c
+++ b/contrib/pgstattuple/pgstattuple.c
@@ -278,9 +278,11 @@ pgstat_heap(Relation rel, FunctionCallInfo fcinfo)
Buffer buffer;
pgstattuple_type stat = {0};
BufferAccessStrategy bstrategy;
+ SnapshotData SnapshotDirty;
/* Disable syncscan because we assume we scan from block zero upwards */
scan = heap_beginscan_strat(rel, SnapshotAny, 0, NULL, true, false);
+ InitDirtySnapshot(SnapshotDirty);
nblocks = scan->rs_nblocks; /* # blocks to be scanned */
@@ -296,7 +298,7 @@ pgstat_heap(Relation rel, FunctionCallInfo fcinfo)
/* must hold a buffer lock to call HeapTupleSatisfiesVisibility */
LockBuffer(scan->rs_cbuf, BUFFER_LOCK_SHARE);
- if (HeapTupleSatisfiesVisibility(tuple, SnapshotNow, scan->rs_cbuf))
+ if (HeapTupleSatisfiesVisibility(tuple, &SnapshotDirty, scan->rs_cbuf))
{
stat.tuple_len += tuple->t_len;
stat.tuple_count++;