It is probably not the most efficient, but I often use this syntax, which reads better. Select ..... where col_type_timestamp::date between '2011-01-01' and '2011-12-31' This will use a timestamp index. -- Mike Nolan -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general