Hello > > I'll test both variant first. Maybe there are not any significant > difference between them. Now nodeAgg can build, fill a tuplesort. So I > think is natural use it. It needs only one - skip a calling a > transident function and directly call final function with external > tuplesort. Minimally you don't need 2x same code.
yesterday I did a small test. Aggregates without transident functions are only about 2% faster, so there has no sense thinking more about them. I'll send a patch with median and percentile functions immediately - these functions are implemented like usual aggregates. Regards Pavel > > Regards > > Pavel Stehule > >> regards, tom lane >> > -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
