Re: EXPLAIN output explanation requested - Mailing list pgsql-novice

From Ron Arts
Subject Re: EXPLAIN output explanation requested
Date
Msg-id 48452692.504@neonova.nl
Whole thread Raw
In response to Re: EXPLAIN output explanation requested  ("A. Kretschmer" <andreas.kretschmer@schollglas.com>)
List pgsql-novice
A. Kretschmer schreef:
> am  Tue, dem 03.06.2008, um 12:35:34 +0200 mailte A. Kretschmer folgendes:
>> I guess, you have much insert/delete or update - operations on this
>> table and no recent vacuum.
>>
>> Try to run a 'vacuum full;' and re-run your query. And, run a 'explain
>> analyse <your query>' to see the estimated costs and the real costs.
>
> Btw, run 'select relpages, reltuples from pg_class where relname='phone';
> before and after the 'vacuum full' and show us the result.
>
>
> Andreas

Andreas,

thanks for answering. I'll run the vacuum full tonight, I don't
dare running it during the day, and I'll show you the query outputs as well.

Thanks,
Ron

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