projects / postgresql.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 31b7b4d) | patch
Check syscache result in AlterStatistics
authorTomas Vondra <tomas.vondra@postgresql.org>
Sun, 23 Jan 2022 01:49:41 +0000 (02:49 +0100)
committerTomas Vondra <tomas.vondra@postgresql.org>
Sun, 23 Jan 2022 02:20:32 +0000 (03:20 +0100)
commit267ccc38ba6a95889d98959f183de64ceff23087
treefa9421079bfab9300744308e603d203b27658603tree
parent31b7b4d26e10086d4a79d49a28fd161da52da49acommit | diff
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
src/backend/commands/statscmds.c diff | blob | blame | history
This is the main PostgreSQL git repository.