Re: Information about Pages, row versions of tables, indices

From: "Pavel Stehule" <pavel(dot)stehule(at)gmail(dot)com>
To: "Gerhard Wiesinger" <lists(at)wiesinger(dot)com>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: Information about Pages, row versions of tables, indices
Date: 2008-12-25 10:50:09
Message-ID: 162867790812250250x3fa50d27n3b366da8f9f95a6e@mail.gmail.com
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Hello

look on contrib module pg_stat_tuple
http://www.postgresql.org/docs/8.3/interactive/pgstattuple.html

regards
Pavel Stehule

2008/12/25 Gerhard Wiesinger <lists(at)wiesinger(dot)com>:
> Hello!
>
> Is there some information in meta tables available about the number of pages
> currently unused, row versions of tables and indices which are unused?
>
> I'm asking because I want to measure how efficient HOT is working and
> whether vacuum should be run or not saving diskspace (I know this is done
> automatically).
>
> Thanx.
>
> Ciao,
> Gerhard
>
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