| From: | "Jim C(dot) Nasby" <jnasby(at)pervasive(dot)com> |
|---|---|
| To: | ipv(at)tinet(dot)org |
| Cc: | pgsql-sql(at)postgresql(dot)org |
| Subject: | Re: Does VACUUM reorder tables on clustered indices |
| Date: | 2005-12-21 00:33:39 |
| Message-ID: | 20051221003339.GB72143@pervasive.com |
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| Lists: | pgsql-hackers pgsql-sql |
On Wed, Dec 21, 2005 at 12:34:12AM +0100, ipv(at)tinet(dot)org wrote:
> Hi,
>
> Utilize <b>CLUSTER;</b> (after vacuum) to reorder the data.
Why would you vacuum when cluster is just going to wipe out the dead
tuples anyway?
> >>Note that while reordering, CLUSTER also gets rid of dead tuples, so if
> >>you cluster you don't need to vacuum.
> >
> >It also does a REINDEX...
--
Jim C. Nasby, Sr. Engineering Consultant jnasby(at)pervasive(dot)com
Pervasive Software http://pervasive.com work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461
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