Fix stats_fetch_consistency with stats for fixed-numbered objects This impacts the statistics retrieved in transactions for the following views when updating the value of stats_fetch_consistency, leading to behaviors contrary to what is documented since 605994651b6a as an update of this parameter should discard all statistics snapshot data: - pg_stat_archiver - pg_stat_bgwriter - pg_stat_checkpointer - pg_stat_io - pg_stat_slru - pg_stat_wal
For example, updating stats_fetch_consistency from "snapshot" to "cache" in a transaction did not re-fetch any fresh data, using data cached from the time when "snapshot" was in use. Author: Shinya Kato Discussion: https://postgr.es/m/d77fc5190d4dbe1738d77231488e7...@oss.nttdata.com Backpatch-through: 15 Branch ------ REL_15_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/171d21f50c3ee3f17911daa3d91eb75363669a11 Modified Files -------------- src/backend/utils/activity/pgstat.c | 3 +++ 1 file changed, 3 insertions(+)
