Fix amcheck child check pg_upgrade bug.
Commit d114cc53 overlooked the fact that pg_upgrade'd B-Tree indexes
have leaf page high keys whose offset numbers do not match the one from
the copy of the tuple one level up (the copy stored with a downlink for
leaf page's right sibling page). This led to false positive reports of
corruption from bt_index_parent_check() when it was called to verify a
pg_upgrade'd index.
To fix, skip comparing the offset number on pg_upgrade'd B-Tree indexes.
Author: Anastasia Lubennikova <[email protected]>
Author: Peter Geoghegan <[email protected]>
Reported-By: Andrew Bille <[email protected]>
Diagnosed-By: Anastasia Lubennikova <[email protected]>
Bug: #16619
Discussion: https://postgr.es/m/[email protected]
Backpatch: 13-, where child check was enhanced.
Branch
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REL_13_STABLE
Details
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https://git.postgresql.org/pg/commitdiff/c287f585865b81c96602db995dacf2c006c79d58
Modified Files
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contrib/amcheck/verify_nbtree.c | 34 ++++++++++++++++++++++++++++------
1 file changed, 28 insertions(+), 6 deletions(-)
