On Fri, Feb 20, 2015 at 1:33 PM, Tomas Vondra <tomas.von...@2ndquadrant.com> wrote: > For example with the same percentile_disc() test as in the other thread: > > create table stuff as select random()::numeric as randnum > from generate_series(1,1000000); > > analyze stuff; > > select percentile_disc(0) within group (order by randnum) from stuff; > > > I get pretty much no difference in runtimes (not even for the smallest > dataset, where the Datum patch speedup was significant). > > What am I doing wrong?
So you're testing both the patches (numeric + datum tuplesort) at the same time? I can't think why this would make any difference. Did you forget to initdb, so that the numeric sortsupport routine was used? -- 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
