From: Jim Buttafuoco <jim@contactbda.com>
To: George Pavlov <gpavlov@mynewplace.com>
To: pgsql-sql@postgresql.org
Subject: Re: finding unused indexes?
Date: Tue, 1 Aug 2006 12:10:01 -0400
Message-ID: <20060801160934.M4017@contactbda.com> (raw)
In-Reply-To: <8C5B026B51B6854CBE88121DBF097A863329E8@ehost010-33.exch010.intermedia.net>
References: <44CE9C63.7010409@debraneys.com>
<8C5B026B51B6854CBE88121DBF097A863329E8@ehost010-33.exch010.intermedia.net>
check out pg_stat_user_indexes, you will need to turn on the stats collection in your postgresql.conf file first.
Jim
---------- Original Message -----------
From: "George Pavlov" <gpavlov@mynewplace.com>
To: <pgsql-sql@postgresql.org>
Sent: Tue, 1 Aug 2006 09:05:34 -0700
Subject: [SQL] finding unused indexes?
> Anybody have a clever way to quickly find whether there are any unused
> indexes in a PG DB? One way I have done is to take queries from the DB
> log, prepend an explain to each and grep the results, but I am wondering
> if there are either any index usage stats maintained somewhere inside
> Postgres or if there is a slicker/less cumbersome way of doing it. Also
> indexes used by functions are hard to simulate that way.
>
> George
>
> ---------------------------(end of broadcast)---------------------------
> TIP 6: explain analyze is your friend
------- End of Original Message -------
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To: pgsql-sql@postgresql.org
Cc: jim@contactbda.com, gpavlov@mynewplace.com
Subject: Re: finding unused indexes?
In-Reply-To: <20060801160934.M4017@contactbda.com>
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