Horton

Re: [HACKERS] Re: [SQL] Proposed Changes to PostgreSQL

Chris Bitmead <chris@bitmead.com>

View thread
From: Chris <chris@bitmead.com>
To: Bruce Momjian <pgman@candle.pha.pa.us>
Cc: Tom Lane <tgl@sss.pgh.pa.us>, pgsql-hackers@postgreSQL.org, pgsql-sql@postgreSQL.org
Date: 2000-02-03T12:28:31Z
Lists: pgsql-hackers 
Bruce Momjian wrote:

> > Well I see that pg_class has columns like "relhasindex". If we added a
> > "relhassubclass", the overhead should be unmeasureable.
> 
> Yes, but how do you keep that accurate?  If I add indexes, then drop
> them, does relhasindex go to false. 

I don't know. Does it? 

>Could you do that for relhassubclass?

If we made it relnumsubclasses and incremented/decremented on
CREATE/DROP, it seems easy in theory.


-- 
Chris Bitmead
mailto:chris@bitmead.com
http://www.techphoto.org - Photography News, Stuff that Matters