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| author | Heikki Linnakangas <heikki.linnakangas@iki.fi> | 2011-06-15 11:43:05 +0300 |
|---|---|---|
| committer | Heikki Linnakangas <heikki.linnakangas@iki.fi> | 2011-06-15 12:12:56 +0300 |
| commit | ff4e078773b48260a36587b54537ca54d929898f (patch) | |
| tree | 925c8a9aa597788f841cfd7268b6b59a39ad868a /src/backend/executor | |
| parent | 80721b518292501058bb57a05fb6e2131997d0ec (diff) | |
| download | postgresql-ff4e078773b48260a36587b54537ca54d929898f.tar.gz postgresql-ff4e078773b48260a36587b54537ca54d929898f.zip | |
Make non-MVCC snapshots exempt from predicate locking. Scans with non-MVCC
snapshots, like in REINDEX, are basically non-transactional operations. The
DDL operation itself might participate in SSI, but there's separate
functions for that.
Kevin Grittner and Dan Ports, with some changes by me.
Diffstat (limited to 'src/backend/executor')
| -rw-r--r-- | src/backend/executor/nodeSeqscan.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/backend/executor/nodeSeqscan.c b/src/backend/executor/nodeSeqscan.c index 1e566b2d505..f356874b441 100644 --- a/src/backend/executor/nodeSeqscan.c +++ b/src/backend/executor/nodeSeqscan.c @@ -113,7 +113,8 @@ SeqRecheck(SeqScanState *node, TupleTableSlot *slot) TupleTableSlot * ExecSeqScan(SeqScanState *node) { - PredicateLockRelation(node->ss_currentRelation); + PredicateLockRelation(node->ss_currentRelation, + node->ss_currentScanDesc->rs_snapshot); node->ss_currentScanDesc->rs_relpredicatelocked = true; return ExecScan((ScanState *) node, (ExecScanAccessMtd) SeqNext, |