Re: Is there a way to check which indexes are being used

From: Ragnar <gnari(at)hive(dot)is>
To: Dragan Matic <mlists(at)panforma(dot)co(dot)yu>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: Is there a way to check which indexes are being used
Date: 2006-02-23 13:47:13
Message-ID: 1140702433.5728.43.camel@localhost.localdomain
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-general

On fim, 2006-02-23 at 14:15 +0100, Dragan Matic wrote:
> We have a 50 GB database (currently using postgresql 8.1.1) with a few
> hundred tables. There are a few larger (2-5 million rows) tables with
> multiple indexes on them, some being unique, some not. Now, I am pretty
> sure some of the indexes are pretty useless and are never used but is
> there a way to see which indexes have been used on a table (and how many
> times) and which haven't? Statistics is turned on for a database, I can
> see number of sequential scans and index scans for instance, but I would
> like to know which indexes have been used and how many times.

select * from pg_stat_user_indexes ;

> Tnx in advance
>
> Dragan Matic
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 5: don't forget to increase your free space map settings
>

In response to

Responses

Browse pgsql-general by date

  From Date Subject
Next Message Carlos Oliva 2006-02-23 13:54:36 ExclusiveLock without a relation in pg_locks
Previous Message Dragan Matic 2006-02-23 13:15:07 Is there a way to check which indexes are being used for a table