diff options
| -rw-r--r-- | src/backend/executor/nodeBitmapHeapscan.c | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/src/backend/executor/nodeBitmapHeapscan.c b/src/backend/executor/nodeBitmapHeapscan.c index 5f768701a5e..6f843908032 100644 --- a/src/backend/executor/nodeBitmapHeapscan.c +++ b/src/backend/executor/nodeBitmapHeapscan.c @@ -475,14 +475,9 @@ BitmapPrefetch(BitmapHeapScanState *node, TableScanDesc scan) * skip this prefetch call, but continue to run the prefetch * logic normally. (Would it be better not to increment * prefetch_pages?) - * - * This depends on the assumption that the index AM will - * report the same recheck flag for this future heap page as - * it did for the current heap page; which is not a certainty - * but is true in many cases. */ skip_fetch = (!(scan->rs_flags & SO_NEED_TUPLES) && - (node->tbmres ? !node->tbmres->recheck : false) && + !tbmpre->recheck && VM_ALL_VISIBLE(node->ss.ss_currentRelation, tbmpre->blockno, &node->pvmbuffer)); @@ -533,7 +528,7 @@ BitmapPrefetch(BitmapHeapScanState *node, TableScanDesc scan) /* As above, skip prefetch if we expect not to need page */ skip_fetch = (!(scan->rs_flags & SO_NEED_TUPLES) && - (node->tbmres ? !node->tbmres->recheck : false) && + !tbmpre->recheck && VM_ALL_VISIBLE(node->ss.ss_currentRelation, tbmpre->blockno, &node->pvmbuffer)); |