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authorSimon Riggs <simon@2ndQuadrant.com>2010-04-22 02:15:45 +0000
committerSimon Riggs <simon@2ndQuadrant.com>2010-04-22 02:15:45 +0000
commit781ec6b75d6f4e89f103f44a31465383ac13c917 (patch)
tree3cd2cd1fcb4ef00cf31c4a00c4293eae77eeb1f2 /src/backend/access/heap/pruneheap.c
parent95a777c612c6dcebe2f17c57c35f7e7c93714484 (diff)
Further reductions in Hot Standby conflict processing. These
come from the realistion that HEAP2_CLEAN records don't always remove user visible data, so conflict processing for them can be skipped. Confirm validity using Assert checks, clarify circumstances under which we log heap_cleanup_info records. Tuning arises from bug fixing of earlier safety check failures.
Diffstat (limited to 'src/backend/access/heap/pruneheap.c')
-rw-r--r--src/backend/access/heap/pruneheap.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/backend/access/heap/pruneheap.c b/src/backend/access/heap/pruneheap.c
index 0fee2845d9f..713ee408996 100644
--- a/src/backend/access/heap/pruneheap.c
+++ b/src/backend/access/heap/pruneheap.c
@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/access/heap/pruneheap.c,v 1.23 2010/04/21 17:20:56 sriggs Exp $
+ * $PostgreSQL: pgsql/src/backend/access/heap/pruneheap.c,v 1.24 2010/04/22 02:15:45 sriggs Exp $
*
*-------------------------------------------------------------------------
*/
@@ -236,6 +236,7 @@ heap_page_prune(Relation relation, Buffer buffer, TransactionId OldestXmin,
{
XLogRecPtr recptr;
+ Assert(TransactionIdIsValid(prstate.latestRemovedXid));
recptr = log_heap_clean(relation, buffer,
prstate.redirected, prstate.nredirected,
prstate.nowdead, prstate.ndead,