From 526409e76419b387d9d4a40e94881231f256fcc8 Mon Sep 17 00:00:00 2001 From: Pavel Borisov Date: Thu, 25 Apr 2024 14:20:45 +0400 Subject: [PATCH v1 3/5] Amcheck: Don't load rightpage into BtreeCheckState For cross-page unique constraint check use a local variable in the similar way as implemented in bt_right_page_check_scankey(). Reported-by: Peter Geoghegan --- contrib/amcheck/verify_nbtree.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/contrib/amcheck/verify_nbtree.c b/contrib/amcheck/verify_nbtree.c index 66f2e619a8..d6f70206db 100644 --- a/contrib/amcheck/verify_nbtree.c +++ b/contrib/amcheck/verify_nbtree.c @@ -1890,23 +1890,27 @@ bt_target_page_check(BtreeCheckState *state) /* The first key on the next page is the same */ if (_bt_compare(state->rel, rightkey, state->target, max) == 0 && !rightkey->anynullkeys) { + Page rightpage; + if (!unique_checked) bt_entry_unique_check(state, itup, state->targetblock, offset, &lVis); elog(DEBUG2, "cross page equal keys"); - state->target = palloc_btree_page(state, + rightpage = palloc_btree_page(state, rightblock_number); - topaque = BTPageGetOpaque(state->target); + topaque = BTPageGetOpaque(rightpage); if (P_IGNORE(topaque) || !P_ISLEAF(topaque)) break; itemid = PageGetItemIdCareful(state, rightblock_number, - state->target, + rightpage, rightfirstoffset); - itup = (IndexTuple) PageGetItem(state->target, itemid); + itup = (IndexTuple) PageGetItem(rightpage, itemid); bt_entry_unique_check(state, itup, rightblock_number, rightfirstoffset, &lVis); + + pfree(rightpage); } } } -- 2.34.1