diff options
Diffstat (limited to 'src/backend/access')
| -rw-r--r-- | src/backend/access/heap/heapam.c | 15 | ||||
| -rw-r--r-- | src/backend/access/index/indexam.c | 3 |
2 files changed, 3 insertions, 15 deletions
diff --git a/src/backend/access/heap/heapam.c b/src/backend/access/heap/heapam.c index 346d6b964d5..01a492e496e 100644 --- a/src/backend/access/heap/heapam.c +++ b/src/backend/access/heap/heapam.c @@ -1529,7 +1529,6 @@ heap_hot_search_buffer(ItemPointer tid, Relation relation, Buffer buffer, OffsetNumber offnum; bool at_chain_start; bool valid; - bool match_found; if (all_dead) *all_dead = true; @@ -1539,7 +1538,6 @@ heap_hot_search_buffer(ItemPointer tid, Relation relation, Buffer buffer, Assert(ItemPointerGetBlockNumber(tid) == BufferGetBlockNumber(buffer)); offnum = ItemPointerGetOffsetNumber(tid); at_chain_start = true; - match_found = false; /* Scan through possible multiple members of HOT-chain */ for (;;) @@ -1597,10 +1595,7 @@ heap_hot_search_buffer(ItemPointer tid, Relation relation, Buffer buffer, PredicateLockTuple(relation, &heapTuple); if (all_dead) *all_dead = false; - if (IsolationIsSerializable()) - match_found = true; - else - return true; + return true; } /* @@ -1629,7 +1624,7 @@ heap_hot_search_buffer(ItemPointer tid, Relation relation, Buffer buffer, break; /* end of chain */ } - return match_found; + return false; } /* @@ -2855,12 +2850,6 @@ l2: END_CRIT_SECTION(); - /* - * Any existing SIREAD locks on the old tuple must be linked to the new - * tuple for conflict detection purposes. - */ - PredicateLockTupleRowVersionLink(relation, &oldtup, heaptup); - if (newbuf != buffer) LockBuffer(newbuf, BUFFER_LOCK_UNLOCK); LockBuffer(buffer, BUFFER_LOCK_UNLOCK); diff --git a/src/backend/access/index/indexam.c b/src/backend/access/index/indexam.c index 08de8b4f88a..27c37d6173f 100644 --- a/src/backend/access/index/indexam.c +++ b/src/backend/access/index/indexam.c @@ -612,8 +612,7 @@ index_getnext(IndexScanDesc scan, ScanDirection direction) * any more members. Otherwise, check for continuation of the * HOT-chain, and set state for next time. */ - if (IsMVCCSnapshot(scan->xs_snapshot) - && !IsolationIsSerializable()) + if (IsMVCCSnapshot(scan->xs_snapshot)) scan->xs_next_hot = InvalidOffsetNumber; else if (HeapTupleIsHotUpdated(heapTuple)) { |