Re: [HACKERS] TODO list updated

Bruce Momjian <pgman@candle.pha.pa.us>

From: Bruce Momjian <pgman@candle.pha.pa.us>
To: Hiroshi Inoue <Inoue@tpf.co.jp>
Cc: Tom Lane <tgl@sss.pgh.pa.us>, PostgreSQL-development <pgsql-hackers@postgreSQL.org>
Date: 2000-01-13T03:34:33Z
Lists: pgsql-hackers
> > -----Original Message-----
> > From: owner-pgsql-hackers@postgreSQL.org
> > [mailto:owner-pgsql-hackers@postgreSQL.org]On Behalf Of Tom Lane
> > 
> > TODO item comments:
> > 
> > * Pull requested data directly from indexes, bypassing heap data
> > 
> > I doubt this is ever going to happen --- to make it possible, we'd
> > have to store tuple-commit status in index entries as well as in the
> > tuples themselves.  That would be a substantial space and speed penalty;
> > is the potential gain really worth it?
> >
> 
> I agree with Tom.  We could omit rows using indexes but cound't
> pull data from indexes without time qualification of heap tuples now.

Removed.

>   
> > * -elog() flushes cache, try invalidating just entries from current xact,
> >   perhaps using invalidation cache
> > 
> > I don't think this is done?
> >
> 
> If I recognize correctly this item,this was fixed by my recent changes
> for cache invalidation though I had changed it without knowing this item.

Great.  I thought so.  I remember some CVS messages saying this.

-- 
  Bruce Momjian                        |  http://www.op.net/~candle
  maillist@candle.pha.pa.us            |  (610) 853-3000
  +  If your life is a hard drive,     |  830 Blythe Avenue
  +  Christ can be your backup.        |  Drexel Hill, Pennsylvania 19026