Alvaro Herrera <alvhe...@2ndquadrant.com> writes: > While working on bugfixes for FK problems in partitioned tables, I came > across some behavior that appears to stem from our inclusion of foreign > keys in relcache, without sufficient care for invalidating the relcache > entries when the foreign key set for the table changes. (Namely, a > partition retains its relcache entry with no FKs when an FK is added to > the parent table, leading a DELETE to skip running action triggers).
Ooops. > At https://postgr.es/m/201901182216.nr5clsxrn624@alvherre.pgsql I posted > a simplistic for the specific problem I found by calling > CacheInvalidateRelcache in the problem spot. But I'm wondering if the > correct fix isn't to have CacheInvalidateHeapTuple deal with FK > pg_constraint tuples instead, per the attached patch. +1, this is safer than expecting retail relcache inval calls to be added in all the right places. regards, tom lane
