On Mon, Dec 8, 2008 at 10:19 PM, Madison Kelly <linux@xxxxxxxxxxx> wrote: > Hi all, > > I've got a table that I am trying to SELECT DISTINCT on one column and > ORDER BY on a second column, but am getting the error: > > SELECT DISTINCT ON expressions must match initial ORDER BY expressions try SELECT distinct, array_accum(bar) FROM table WHERE bar < '2008-12-07 16:32:46' AND tbl_id=153 ORDER BY bar LIMIT 1; or even, when you change bar to proper type - that is, timestamp SELECT distinct foo, min(bar) as minbar, max(bar) as maxbar FROM table WHERE bar < '2008-12-07 16:32:46' AND tbl_id=153 ORDER BY bar LIMIT 1; etc. Trick, is to use aggregate on other value(s). HTH -- GJ -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
