diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/backend/access/gin/ginfast.c | 9 | ||||
| -rw-r--r-- | src/backend/access/gin/ginget.c | 4 |
2 files changed, 10 insertions, 3 deletions
diff --git a/src/backend/access/gin/ginfast.c b/src/backend/access/gin/ginfast.c index d232856f6c2..37f3f7ed96f 100644 --- a/src/backend/access/gin/ginfast.c +++ b/src/backend/access/gin/ginfast.c @@ -245,9 +245,10 @@ ginHeapTupleFastInsert(GinState *ginstate, GinTupleCollector *collector) /* * An insertion to the pending list could logically belong anywhere in the * tree, so it conflicts with all serializable scans. All scans acquire a - * predicate lock on the metabuffer to represent that. + * predicate lock on the metabuffer to represent that. Therefore we'll + * check for conflicts in, but not until we have the page locked and are + * ready to modify the page. */ - CheckForSerializableConflictIn(index, NULL, GIN_METAPAGE_BLKNO); if (collector->sumsize + collector->ntuples * sizeof(ItemIdData) > GinListPageSize) { @@ -291,6 +292,8 @@ ginHeapTupleFastInsert(GinState *ginstate, GinTupleCollector *collector) LockBuffer(metabuffer, GIN_EXCLUSIVE); metadata = GinPageGetMeta(metapage); + CheckForSerializableConflictIn(index, NULL, GIN_METAPAGE_BLKNO); + if (metadata->head == InvalidBlockNumber) { /* @@ -353,6 +356,8 @@ ginHeapTupleFastInsert(GinState *ginstate, GinTupleCollector *collector) char *ptr; char *collectordata; + CheckForSerializableConflictIn(index, NULL, GIN_METAPAGE_BLKNO); + buffer = ReadBuffer(index, metadata->tail); LockBuffer(buffer, GIN_EXCLUSIVE); page = BufferGetPage(buffer); diff --git a/src/backend/access/gin/ginget.c b/src/backend/access/gin/ginget.c index 2cfccdedcf5..a32f0b4b4cd 100644 --- a/src/backend/access/gin/ginget.c +++ b/src/backend/access/gin/ginget.c @@ -139,7 +139,9 @@ collectMatchBitmap(GinBtreeData *btree, GinBtreeStack *stack, * Predicate lock entry leaf page, following pages will be locked by * moveRightIfItNeeded() */ - PredicateLockPage(btree->index, stack->buffer, snapshot); + PredicateLockPage(btree->index, + BufferGetBlockNumber(stack->buffer), + snapshot); for (;;) { |