On Tuesday 06 January 2004 17:48, D'Arcy J.M. Cain wrote:
> On January 6, 2004 01:42 am, Shridhar Daithankar wrote:
> cert=# select relpages,reltuples::bigint from pg_class where relname=
> 'certificate';
>  relpages | reltuples
> ----------+-----------
>    399070 |  24858736
> (1 row)
>
> But:
>
> cert=# select count(*) from certificate;
> [*Crunch* *Crunch* *Crunch*]
>   count
> ----------
>  19684668
> (1 row)
>
> Am I missing something?  Max certificate_id is 20569544 btw.

Do 'vacuum analyze certificate' and try..:-)

The numbers from pg_class are estimates updated by vacuum /analyze. Of course 
you need to run vacuum frequent enough for that statistics to be updated all 
the time or run autovacuum daemon..

Ran into same problem on my machine till I remembered about vacuum..:-)

 Shridhar


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