On Wed, Mar 23, 2005 at 04:07:59PM +0000, Richard Huxton wrote:
> Don't forget pg_class isn't in your database, it's shared by all.
Each database has its own pg_class:
SELECT relname, relkind, relisshared
FROM pg_class
WHERE relname = 'pg_class';
relname | relkind | relisshared
----------+---------+-------------
pg_class | r | f
(1 row)
You can query pg_class to see that its contents are different in
different databases, and you can use "ls -li" on the on-disk files
to see that they have different inode numbers and (usually) different
sizes and modified times.
Here are the shared objects in an 8.0.1 database (excluding indexes):
SELECT relname, relkind
FROM pg_class
WHERE relkind <> 'i' AND relisshared IS TRUE
ORDER BY relname;
relname | relkind
---------------+---------
pg_database | r
pg_group | r
pg_shadow | r
pg_tablespace | r
pg_toast_1260 | t
pg_toast_1261 | t
pg_toast_1262 | t
pg_xactlock | s
(8 rows)
--
Michael Fuhr
http://www.fuhr.org/~mfuhr/
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