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@wiesinger.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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