On Fri, Oct 12, 2012 at 2:05 PM, Anibal David Acosta <aa@xxxxxxxxxxxx> wrote: > I have a table with a column of type timestamp with time zone, this column > has an index > > If I do a select like this > > select * from mytable where cast(my_date as timestamp without time zone) > > '2012-10-12 20:00:00' > > this query will use the index over the my_date column? No. but it will use a functional index: create index yada on blah (cast(my_date as timestaqmp without time zone)); -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
