On Thu, 21 Oct 2004, Thomas F.O'Connell wrote:
> Aggregate (cost=0.02..0.02 rows=1 width=8) (actual
> time=298321.421..298321.422 rows=1 loops=1)
> -> Nested Loop (cost=0.00..0.01 rows=1 width=8) (actual
> time=1.771..298305.531 rows=2452 loops=1)
> Join Filter: ("inner".id = "outer".id)
> -> Seq Scan on userdata u (cost=0.00..0.00 rows=1 width=8)
> (actual time=0.026..11.869 rows=2452 loops=1)
> -> Seq Scan on userdata_history h (cost=0.00..0.00 rows=1
> width=8) (actual time=0.005..70.519 rows=41631 loops=2452)
> Filter: (id = 18181::bigint)
It looks like you have not run ANALYZE recently. Most people run VACUUM
ANALYZE every night (or similar) in a cron job.
--
/Dennis Björklund
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