On Wed, Jan 4, 2017 at 11:45 PM, Pavan Deolasee <pavan.deola...@gmail.com> wrote: > > > On Tue, Jan 3, 2017 at 9:33 PM, Robert Haas <robertmh...@gmail.com> wrote: >> >> On Mon, Jan 2, 2017 at 1:36 AM, Amit Kapila <amit.kapil...@gmail.com> >> wrote: >> > Okay, but I think if we know how much is the additional cost in >> > average and worst case, then we can take a better call. >> >> Yeah. We shouldn't just rip out optimizations that are inconvenient >> without doing some test of what the impact is on the cases where those >> optimizations are likely to matter. I don't think it needs to be >> anything incredibly laborious and if there's no discernable impact, >> great. > > > So I performed some tests to measure if this causes any noticeable > regression. >
Your test and results look good, what kind of m/c you have used to test this. Let me see if I or one of my colleague can do this and similar test on some high-end m/c. -- With Regards, Amit Kapila. EnterpriseDB: http://www.enterprisedb.com -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
