On Sat, Dec 10, 2011 at 4:16 PM, Jaime Casanova <ja...@2ndquadrant.com> wrote:
>>> now, if we are now supporting this variants
>>> ALTER TABLE SET TABLE TABLESPACE
>>> ALTER TABLE SET TOAST TABLESPACE
>>>
>>> why not also support ALTER TABLE SET INDEX TABLESPACE which should
>>> have the same behaviour as ALTER INDEX SET TABLESPACE... just an idea,
>>> and of course not necessary for this patch
>
> any opinion about this? maybe i can make a patch for that if there is
> consensus that it could be good for symettry

I'm not really convinced we need it.  I think it would end up just
being a shorthand for ALTER INDEX .. SET TABLESPACE for each index.
Most tables don't have more than a handful of indexes, so it doesn't
seem like we'd be gaining much (compare GRANT ... ON ALL TABLES IN
SCHEMA, which could easily be a shorthand for hundreds or perhaps even
thousands of individual GRANT statements).

Also, it seems that we haven't really discussed much why moving the
TOAST table to a different tablespace from the main table might be
useful.  I'm not saying we shouldn't have it if it's good for
something, but what's the reason for wanting it?

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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