From: Joshua D. Drake <jd@commandprompt.com>
To: Scott Marlowe <scott.marlowe@gmail.com>
Cc: Peter Koczan <pjkoczan@gmail.com>
Cc: pgsql-performance <pgsql-performance@postgresql.org>
Subject: Re: disabling an index without deleting it?
Date: Tue, 26 Feb 2008 13:03:39 -0800
Message-ID: <20080226130339.64bd4ec3@commandprompt.com> (raw)
In-Reply-To: <dcc563d10802261257h6abfbc92x62a7569b8610ecc4@mail.gmail.com>
References: <4544e0330802261246t574167fdpc47629d1bbe64fed@mail.gmail.com>
<dcc563d10802261257h6abfbc92x62a7569b8610ecc4@mail.gmail.com>
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On Tue, 26 Feb 2008 14:57:51 -0600
"Scott Marlowe" <scott.marlowe@gmail.com> wrote:
> The brick to the head method would use set enable_indexscan = off;
> However, you can delete an index without actually deleting it like so:
>
> begin;
> drop index abc_dx;
> select ....
> rollback;
>
> and viola, your index is still there. note that there are likely some
> locking issues with this, so be careful with it in production. But on
> a test box it's a very easy way to test various indexes.
Wouldn't you also bloat the index?
Joshua D. Drake
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Subject: Re: disabling an index without deleting it?
In-Reply-To: <20080226130339.64bd4ec3@commandprompt.com>
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