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| author | Tomas Vondra <tomas.vondra@postgresql.org> | 2022-01-23 02:49:41 +0100 |
|---|---|---|
| committer | Tomas Vondra <tomas.vondra@postgresql.org> | 2022-01-23 03:20:32 +0100 |
| commit | 267ccc38ba6a95889d98959f183de64ceff23087 (patch) | |
| tree | fa9421079bfab9300744308e603d203b27658603 /src/backend/parser/parse_node.c | |
| parent | 31b7b4d26e10086d4a79d49a28fd161da52da49a (diff) | |
| download | postgresql-267ccc38ba6a95889d98959f183de64ceff23087.tar.gz postgresql-267ccc38ba6a95889d98959f183de64ceff23087.zip | |
Check syscache result in AlterStatistics
The syscache lookup may return NULL even for valid OID, for example due
to a concurrent DROP STATISTICS, so a HeapTupleIsValid is necessary.
Without it, it may fail with a segfault.
Reported by Alexander Lakhin, patch by me. Backpatch to 13, where ALTER
STATISTICS ... SET STATISTICS was introduced.
Backpatch-through: 13
Discussion: https://postgr.es/m/17372-bf3b6e947e35ae77%40postgresql.org
Diffstat (limited to 'src/backend/parser/parse_node.c')
0 files changed, 0 insertions, 0 deletions