| From: | "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov> |
|---|---|
| To: | "pgsql-admin(at)postgresql(dot)org" <pgsql-admin(at)postgresql(dot)org>, "Glyn Astill" <glynastill(at)yahoo(dot)co(dot)uk> |
| Subject: | Re: Reindexing primary keys without locking |
| Date: | 2011-06-01 13:52:00 |
| Message-ID: | 4DE5FDB0020000250003DF78@gw.wicourts.gov |
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| Lists: | pgsql-admin |
Glyn Astill <glynastill(at)yahoo(dot)co(dot)uk> wrote:
> Does anyone know of any tricks to replace primary key indexes
> without using reindex? Or any other method that will not lock the
> table for an extended amount of time on 8.4?
>
> I've got a bloated primary key index on a table and I'd like to
> try and clean it up without downtime.
You could create a unique index concurrently on the same columns.
Perhaps that would help with performance problems from the bloat
until you had a window to drop the redundant index and reindex the
table?
-Kevin
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