diff options
| author | David Rowley <drowley@postgresql.org> | 2021-11-24 23:29:56 +1300 |
|---|---|---|
| committer | David Rowley <drowley@postgresql.org> | 2021-11-24 23:29:56 +1300 |
| commit | c2dc7b9e15039ce90c0a631ff291feb81d2c8051 (patch) | |
| tree | 07729c689c4f0a51b2dccd4d679edee283c194a6 /src/backend/nodes/outfuncs.c | |
| parent | 0e681fa458750b08a5c7885820320fb85cd9ddf1 (diff) | |
Flush Memoize cache when non-key parameters change, take 2
It's possible that a subplan below a Memoize node contains a parameter
from above the Memoize node. If this parameter changes then cache entries
may become out-dated due to the new parameter value.
Previously Memoize was mistakenly not aware of this. We fix this here by
flushing the cache whenever a parameter that's not part of the cache
key changes.
Bug: #17213
Reported by: Elvis Pranskevichus
Author: David Rowley
Discussion: https://postgr.es/m/17213-988ed34b225a2862@postgresql.org
Backpatch-through: 14, where Memoize was added
Diffstat (limited to 'src/backend/nodes/outfuncs.c')
| -rw-r--r-- | src/backend/nodes/outfuncs.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/backend/nodes/outfuncs.c b/src/backend/nodes/outfuncs.c index c8863288fc8..da212d9ddff 100644 --- a/src/backend/nodes/outfuncs.c +++ b/src/backend/nodes/outfuncs.c @@ -861,6 +861,7 @@ _outMemoize(StringInfo str, const Memoize *node) WRITE_BOOL_FIELD(singlerow); WRITE_BOOL_FIELD(binary_mode); WRITE_UINT_FIELD(est_entries); + WRITE_BITMAPSET_FIELD(keyparamids); } static void |