Re: How often do I need to reindex tables?

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От Jeff Davis
Тема Re: How often do I need to reindex tables?
Дата
Msg-id 1172866723.13722.212.camel@dogma.v10.wvs
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Ответ на Re: How often do I need to reindex tables?  ("Joshua D. Drake" <jd@commandprompt.com>)
Ответы Re: How often do I need to reindex tables?  (Tom Lane <tgl@sss.pgh.pa.us>)
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On Wed, 2007-02-28 at 09:17 -0800, Joshua D. Drake wrote:
> Bill, you are right but I believe Jim was speaking from a general
> perspective. Generally speaking you should not have to reindex, or if
> you do very rarely.
>
> I too have a couple of databases we manage that require a reindex more
> often than what would be considered normal, but a reindex is far from
> the norm itself.
>

Isn't a REINDEX still needed in the case of monotonically increasing
keys, such as in a sequence or timestamp index? I also delete tuples, so
that results in a forward-shifting range of keys.

If this is not normal, I need to re-evaluate my autovacuum settings.

Regards,
    Jeff Davis


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