[linux@alteeve.com - Fri at 12:10:19PM -0400]
> tle-bu=> EXPLAIN ANALYZE SELECT file_type, file_parent_dir, file_name FROM
> file_info_7;
> QUERY PLAN
>
----------------------------------------------------------------------------------------------------------------------
> Seq Scan on file_info_7 (cost=0.00..11028.35 rows=294035 width=118)
> (actual time=0.122..2707.764 rows=294035 loops=1)
> Total runtime: 3717.862 ms
> (2 rows)
>
As far as I can see, you are selecting everything from the table without any
sort order. The only rational thing to do then is a sequential scan, it's
no point in an index scan.
--
Tobias Brox, +47-91700050