Andres Freund <andres(at)2ndquadrant(dot)com> writes:
> There's rub here though. We unconditionally do:
> /* Do post-vacuum cleanup and statistics update for each index */
> for (i = 0; i < nindexes; i++)
> lazy_cleanup_index(Irel[i], indstats[i], vacrelstats);
> and that's not particularly cheap. Maybe we should make that conditional
> when there's been no lazy_vacuum_index/heap calls at all?
Absolutely not. If the cleanup step is skippable, it would be the
province of the index AM to make that decision.
regards, tom lane