| commit | f22e17f76cf569a797c45268081feadc8ebd68c7 | |
| author | Peter Geoghegan <pg@bowt.ie> | |
| Thu, 18 Apr 2024 15:48:41 +0000 (18 11:48 -0400) | ||
| committer | Peter Geoghegan <pg@bowt.ie> | |
| Thu, 18 Apr 2024 15:48:41 +0000 (18 11:48 -0400) | ||
| tree | fe8dffbeda7311ba5cd91e1fb920ba3f18fa33d6 | treesnapshot (tar.gz zip) |
| parent | 9e72f6bfae1707fca1a297db433f6145d582a1c2 | commitdiff |
Don't try to fix eliminated nbtree array scan keys.
Preprocessing for nbtree index scans allowed array "input" scan keys
already marked eliminated during array-specific preprocessing to be
"fixed up" during preprocessing proper. This allowed eliminated scan
keys on DESC index columns to spurious have their strategy commuted,
causing assertion failures.
To fix, teach _bt_fix_scankey_strategy to ignore these scan keys. This
brings it in line with its only caller, _bt_preprocess_keys.
Oversight in commit 5bf748b8, which enhanced nbtree ScalarArrayOp
execution.
Reported-By: Donghang Lin <donghanglin@gmail.com>
Discussion: https://postgr.es/m/CAA=D8a2sHK6CAzZ=0CeafC-Y-MFXbYxnRSHvZTi=+JHu6kAa8Q@mail.gmail.com
Preprocessing for nbtree index scans allowed array "input" scan keys
already marked eliminated during array-specific preprocessing to be
"fixed up" during preprocessing proper. This allowed eliminated scan
keys on DESC index columns to spurious have their strategy commuted,
causing assertion failures.
To fix, teach _bt_fix_scankey_strategy to ignore these scan keys. This
brings it in line with its only caller, _bt_preprocess_keys.
Oversight in commit 5bf748b8, which enhanced nbtree ScalarArrayOp
execution.
Reported-By: Donghang Lin <donghanglin@gmail.com>
Discussion: https://postgr.es/m/CAA=D8a2sHK6CAzZ=0CeafC-Y-MFXbYxnRSHvZTi=+JHu6kAa8Q@mail.gmail.com
| src/backend/access/nbtree/nbtutils.c | diffblobblamehistory |