Nathan Bossart <nathandboss...@gmail.com> writes: > On Wed, Dec 28, 2022 at 03:13:23PM -0500, Tom Lane wrote: >> + executeCommand(conn, "VACUUM (ONLY_DATABASE_STATS);", echo);
> When I looked at this, I thought it would be better to send the command > through the parallel slot machinery so that failures would use the same > code path as the rest of the VACUUM commands. However, you also need to > adjust ParallelSlotsWaitCompletion() to mark the slots as idle so that the > slot array can be reused after it is called. Hm. I was just copying the way commands are issued further up in the same function. But I think you're right: once we've done ParallelSlotsAdoptConn(sa, conn); it's probably not entirely kosher to use the conn directly. regards, tom lane