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Re: [subxacts] Fixing TODO items

From: Alvaro Herrera <alvherre(at)dcc(dot)uchile(dot)cl>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Patches <pgsql-patches(at)postgresql(dot)org>
Subject: Re: [subxacts] Fixing TODO items
Date: 2004-07-28 23:53:33
Message-ID: 20040728235333.GA15466@dcc.uchile.cl (view raw or flat)
Thread:
Lists: pgsql-patches
On Tue, Jul 27, 2004 at 01:32:01PM -0400, Tom Lane wrote:
> Alvaro Herrera <alvherre(at)dcc(dot)uchile(dot)cl> writes:
> > There are some likely controversial changes; the Xid caches, in the
> > first place.
> 
> No kidding ;-)

Ok, here is another try.  This patch includes both the Xid cache
rewrite, source documentation (removed the big comment in xact.c and
added a README file), htup.h comments updated, and some user
documentation.

BTW, the overflow bit is certainly a better approach than the negative
cache.  I am not sure about locking w.r.t. the XidCache though.

Please take a look at it.

-- 
Alvaro Herrera (<alvherre[a]dcc.uchile.cl>)
Maybe there's lots of data loss but the records of data loss are also lost.
(Lincoln Yeoh)

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