Jeff Janes <jeff.janes@xxxxxxxxx> writes: > On Sun, Nov 20, 2016 at 2:45 AM, Pavel Stehule <pavel.stehule@xxxxxxxxx> > wrote: >> you can use composite type instead array too. > I tried a composite type of (flag int, value anyelement) but you can't use > anyelement in a composite type. So the aggregate function couldn't be > polymorphic. Or, that was my conclusion after making a few attempts. Maybe > I need to give on polymorphism if I want to get performance? I would bet on a composite type being as slow or slower than the array solution. You could do a quick test with a non-polymorphic definition just to see, but I doubt it's a promising avenue. regards, tom lane -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
