Re: disabling an index without deleting it?

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От Joshua D. Drake
Тема Re: disabling an index without deleting it?
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Msg-id 20080226143738.05d2cb78@commandprompt.com
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Ответ на Re: disabling an index without deleting it?  (Tom Lane <tgl@sss.pgh.pa.us>)
Список pgsql-performance
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On Tue, 26 Feb 2008 17:22:40 -0500
Tom Lane <tgl@sss.pgh.pa.us> wrote:

> "Joshua D. Drake" <jd@commandprompt.com> writes:
> > "Scott Marlowe" <scott.marlowe@gmail.com> wrote:
> >> 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?
> 
> No, what makes you think that? 

Well now that I am obviously wrong :P. I was thinking about it from the:

BEGIN;
DELETE FROM
ROLLBACK;

Perspective.

Sincerely,

Joshua D. Drake



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