pg_atributes index space question - Mailing list pgsql-general

From Joe Maldonado
Subject pg_atributes index space question
Date
Msg-id 423AD91A.1020202@webehosting.biz
Whole thread Raw
Responses Re: pg_atributes index space question
List pgsql-general
     Hello,

After a VACUUM FULL I saw that pg_attribute tables indexes haven't
been deleted as reported by a subsequent vacuum analyze. But the pages
corresponding to just the table has been deleted to 196 pages from
about 181557 pages. Are all system tables affected by this ? How can
we reclaim this space without shutting down postmaster ? Is this fixed
in any new release ?

db=# select relpages, reltuples from pg_catalog.pg_class where
relname = 'pg_attribute';
 relpages | reltuples
----------+-----------
      196 |      9965
(1 row)

db=# vacuum verbose analyze pg_catalog.pg_attribute;
INFO:  vacuuming "pg_catalog.pg_attribute"
INFO:  index "pg_attribute_relid_attnam_index" now contains 9965 row
versions in 181557 pages
DETAIL:  1518 index row versions were removed.
181263 index pages have been deleted, 20000 are currently reusable.

thanks





pgsql-general by date:

Previous
From: Mark Rae
Date:
Subject: SMP scaling
Next
From: Tom Lane
Date:
Subject: Re: pg_dump large-file support > 16GB