Re: monitoring fragmentation

[Guillaume Lelarge <guillaume(at)lelarge(dot)info>]

Kasia Tuszynska wrote:
> I am searching for a pg_xxxxx view that would allow me to view the
> properties of an index. 
> - the fillfactor it was created with

Catalog pg_class, column reloptions.

> - the amount of free space on a page(s) storing the index ( assuming
> that it was created with a fillfactor and the index has incurred updates
> since the creation taking up some space reserved by the fillfactor
> during the load).
>
> The usage of a fillfactor nor fragmentation info does not get displayed
> in pgAdminIII.

Fillfactor information is available with pgAdmin III 1.8.

 In SQL Server 2005 the analogous views would be:
> Obcc showcontig and sys.dm_index_physical_stats
>
> Perhaps there is another way to determine fragmentation of indexes in
> Postgres, any hint would be much appreciated.

Try pgstattuple module contrib. See 
http://www.postgresql.org/docs/8.3/static/pgstattuple.html for more 
informations.

Regards.


--
Guillaume.
 http://www.postgresqlfr.org
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