On Sat, 23 Dec 2006, Benjamin Arai wrote:
> The largest table in my database (30GB) has mysteriously went from taking
> milli-seconds to perform a query to minutes. This disks are fine and I have
> a 4GB shared_memory. Could this slow down have to do with the fsm_max_pages
> or something else like that? I made it larger but the queries still taking a
> long time. I do daily vacuum's but I don't run it with -z or --full. I
> would like to avoid doing a --full if possible because it would literally
> take over a week to complete. Any help would be greatly appreciated.
Benjamin,
When is the last time you ran ANALYZE? That's what the -z option does. If
you're only vacuuming once daily, you should definitely analyze with the -z
flag as well.
--
Jeff Frost, Owner <jeff@frostconsultingllc.com>
Frost Consulting, LLC http://www.frostconsultingllc.com/
Phone: 650-780-7908 FAX: 650-649-1954