Ensure relcache consistency around generated columns

Peter Eisentraut <peter@eisentraut.org>

Commit: fc7a5e9eaa2fa34b053ffe52e0e57f1fd6b1f939
Author: Peter Eisentraut <peter@eisentraut.org>
Date: 2020-02-06T20:25:01Z
Releases: 13.0
Ensure relcache consistency around generated columns

In certain transient states, it's possible that a table has attributes
with attgenerated set but no default expressions in pg_attrdef yet.
In that case, the old code path would not set
relation->rd_att->constr->has_generated_stored, unless
relation->rd_att->constr was also populated for some other reason.
There was probably no practical impact, but it's better to keep this
consistent.

Reported-by: Andres Freund <andres@anarazel.de>
Discussion: https://www.postgresql.org/message-id/flat/20200115181105.ad6ab6dlgyww3lb6%40alap3.anarazel.de

Files

PathChange+/−
src/backend/utils/cache/relcache.c modified +5 −2

Discussion