On Wed, Nov 18, 2015 at 10:41 PM, Amit Kapila <amit.kapil...@gmail.com> wrote: > I think whats going on here is that when any of the session doesn't > get any workers, we shutdown the Gather node which internally destroys > the dynamic shared memory segment as well. However the same is > needed as per current design for doing scan by master backend as > well. So I think the fix would be to just do shutdown of workers which > actually won't do anything in this scenario.
It seems silly to call ExecGatherShutdownWorkers() here when that's going to be a no-op. I think we should just remove that line and the if statement before it altogether and replace it with a comment explaining why we can't nuke the DSM at this stage. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (email@example.com) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers