Re: Big 7.1 open items

Tom Lane <tgl@sss.pgh.pa.us>

From: Tom Lane <tgl@sss.pgh.pa.us>
To: Bruce Momjian <pgman@candle.pha.pa.us>
Cc: Peter Eisentraut <peter_e@gmx.net>, Hiroshi Inoue <Inoue@tpf.co.jp>, Jan Wieck <JanWieck@yahoo.com>, "Ross J. Reedstrom" <reedstrm@rice.edu>, Don Baccus <dhogaza@pacifier.com>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2000-06-21T21:39:38Z
Lists: pgsql-hackers
Bruce Momjian <pgman@candle.pha.pa.us> writes:
>> But that name can only be a dozen or so characters, contain no slash or
>> other funny characters, etc. That's really poor. Then the alternative is
>> to have an internal name and an external canonical name. Then you have two
>> names to worry about. Also consider that when you store both the table
>> space oid and the internal name in pg_class you create redundant data.
>> What if you rename the table space? Do you leave the internal name out of
>> sync? Then what good is the internal name? I'm just concerned that we are
>> creating at the table space level problems similar to that we're trying to
>> get rid of at the relation and database level.

> Agreed.  Having table spaces stored by directories named by oid just
> seems very complicated for no reason.

Huh?  He just gave you two very good reasons: avoid Unix-derived
limitations on the naming of tablespaces (and tables), and avoid
problems with renaming tablespaces.

I'm pretty much firmly back in the "OID and nothing but" camp.
Or perhaps I should say "OID, file version, and nothing but",
since we still need a version number to do CLUSTER etc.

			regards, tom lane