On Mon, Sep 11, 2017 at 8:17 AM, Tomas Vondra <tomas.von...@2ndquadrant.com> wrote: > Overall I think the results show quite significant positive impact of > the patch. There are a few cases of regression, but ISTM those may > easily be noise as it's usually 0.03 vs 0.04 second, or something. I'll > switch to the \timing (instead of /usr/bin/time) to get more accurate > results, and rerun those tests.
I'm glad to hear it. While I'm not surprised, I still don't consider the patch to be a performance enhancement. It is intended to lower the complexity of tuplesort.c, and the overall performance improvement is just a bonus IMV. -- Peter Geoghegan -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
