Reindex - Is this necessary after a vacuum? - Mailing list pgsql-performance

From Markus Benne
Subject Reindex - Is this necessary after a vacuum?
Date
Msg-id 20051025135607.39805.qmail@web31615.mail.mud.yahoo.com
Whole thread Raw
Responses Re: Reindex - Is this necessary after a vacuum?  (Richard Huxton <dev@archonet.com>)
Re: Reindex - Is this necessary after a vacuum?  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-performance
We are reindexing frequently, and I'm wondering if
this is really necessary, given that it appears to
take an exclusive lock on the table.

Our table in question is vacuumed every 4 minutes, and
we are reindexing after each one.

I'm not a fan of locking this table that frequently,
even if it is only for 5 - 10 seconds depending on
load.

The vacuum is a standard vacuum.  Nightly we do a
vacuum analyze.

Thanks for any tips,
...Markus

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