From: | Alvaro Herrera Munoz <alvherre(at)dcc(dot)uchile(dot)cl> |
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To: | Jan Wieck <JanWieck(at)Yahoo(dot)com> |
Cc: | Patches <pgsql-patches(at)postgresql(dot)org> |
Subject: | Re: 2nd nested trasanctions supporting patch |
Date: | 2003-04-28 20:33:33 |
Message-ID: | 20030428203333.GC10319@dcc.uchile.cl |
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Lists: | pgsql-patches |
On Mon, Apr 28, 2003 at 09:29:55AM -0400, Jan Wieck wrote:
> Alvaro Herrera wrote:
> > It also adds some accesor functions so that other functions can read and
> > modify what they need.
>
> What's the performance impact caused by the accessor functions? I
> thought most of the tuple visibility code is done in macros for some
> reason.
Oh, I dunno. But actually the only macro I removed was IsSnapshotDirty.
All the others accessor functions are there to provide access to
now-local, previously-global variables that were accessed directly. I
think everything can be converted macros if there's need. I'll try to
do some performance measurements.
--
Alvaro Herrera (<alvherre[(at)]dcc(dot)uchile(dot)cl>)
"La verdad no siempre es bonita, pero el hambre de ella si"
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