--- On Fri, 11/27/09, Tom Lane <tgl@xxxxxxxxxxxxx> wrote: > You didn't show us any evidence of that, either. Both > of your test > cases are using the index. Ok...third try. The cost when passing in an empty string is SIGNIFICANTLY higher than when not. Wouldn't seem that the planner is using the index effectively. Aggregate (cost=231884.57..231884.57 rows=1 width=0) versus Aggregate (cost=34.83..34.83 rows=1 width=0) By -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general