On Wed, May 2, 2018 at 9:28 AM, Alvaro Herrera <alvherre@2ndquadrant.com> wrote:
> I admit I am more concerned about the possibility of bugs than I am
> about providing a performance-related tool.
I agree that if partition pruning has bugs, somebody might want to
turn it off. On the other hand, when they do, there's a good chance
that they will lose so much performance that they'll still be pretty
sad. Somebody certainly could have a workload where the pruning
helps, but by a small enough amount that shutting it off is
acceptable. But I suspect that's a somewhat narrow target.
I'm not going to go to war over this, though. I'm just telling you
what I think.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company