Tom Lane wrote: > Greg Smith <greg@xxxxxxxxxxxxxxx> writes: > > Florian Weimer wrote: > >> The sizes displayed by \dt+ in version 8.4.2 do not take TOAST tables > >> into account, presumably because the pg_relation_size does not reflect > >> that, either. I think this is a bit surprising. From a user > >> perspective, these are part of the table storage (I understand that > >> the indices might be a different story, but TOAST table are a fairly > >> deep implementation detail and should perhaps be hidden here). > > > As of last week there's a new pg_table_size available that does what you > > want here: > > http://archives.postgresql.org/pgsql-committers/2010-01/msg00288.php > > > I don't believe \dt+ has been updated yet to use that though; that's > > worth considering for a minute, not sure anybody thought about it yet. > > We could only use pg_table_size against a backend >= 9.0, which would > mean that the displayed results mean something different depending on > which backend version psql is being used with. That's not necessarily > a deal-breaker, but it does seem a bit evil. Perhaps we can emulate pg_table_size on earlier server versions, using a query which provides the sum of table plus toast items. It would be a bit slower, but the normal case of using the same server version would be fast. -- Alvaro Herrera http://www.CommandPrompt.com/ The PostgreSQL Company - Command Prompt, Inc. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
