Sameer Kumar <sameer.ku...@ashnik.com> writes: > I am not sure why but my PostgreSQL does not seem to be using indexes for > ORDER BY clause or PARTITION BY CLAUSE which I use with windowing function.
When the entire contents of the table have to be read, a seqscan-and-sort will frequently be estimated as cheaper than an indexscan. If you think this is not true on your hardware, you might need to adjust random_page_cost. 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