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Re: Problems with database bloat

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This tells me that you need to be vacuuming more. Autovac is your
friend.

On Thu, Jun 08, 2006 at 07:14:01PM -0400, Alex Turner wrote:
> Yeah - I just did a reindex, that fixed the indexes at least.
> 
> Alex
> 
> On 6/8/06, Jim C. Nasby <jnasby@xxxxxxxxxxxxx> wrote:
> >
> >On Thu, Jun 08, 2006 at 06:03:23PM -0400, Alex Turner wrote:
> >> I hope I'm reading this query wrong:
> >>
> >> trend=# select relname, relpages*8192/reltuples from pg_class where
> >> reltuples>0 order by relpages desc limit 10;
> >>            relname            |     ?column?
> >> -------------------------------+------------------
> >> property                      | 19935.4468376195
> >> result_entry_pkey             | 1611.15654062026
> >> result_entry                  | 1417.71707157196
> >> person                        | 7107.41684585612
> >> property_feature_pkey         | 98.7810833557521
> >> property_feature              | 60.2035684051268
> >> person_name_i                 | 3358.93641334398
> >> property_price_i              | 1978.89907374882
> >> property_mls_listing_number_i | 1923.61833274788
> >> property_spatial              | 1784.73493686332
> >> (10 rows)
> >>
> >> If I have this query right in my head, this means that the average tuple
> >in
> >> the property relation is taking up 19k? and the average tuple in the
> >> result_entry_pkey index is take 1.5k?!
> >>
> >> Is there a way I can get the database to coalesce free space?  A vacuum
> >> verbose shows that I have enough entries in the free space map...
> >
> >A lazy vacuum won't reclaim empty space, only a VACUUM FULL will.
> >
> >If that drops the size of the relations substantially, you'll probably
> >want to REINDEX everything to reclaim lost space in the indexes as well.
> >--
> >Jim C. Nasby, Sr. Engineering Consultant      jnasby@xxxxxxxxxxxxx
> >Pervasive Software      http://pervasive.com    work: 512-231-6117
> >vcard: http://jim.nasby.net/pervasive.vcf       cell: 512-569-9461
> >

-- 
Jim C. Nasby, Sr. Engineering Consultant      jnasby@xxxxxxxxxxxxx
Pervasive Software      http://pervasive.com    work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf       cell: 512-569-9461


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