Re: refactor heap_deform_tuple guts

From: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
To: Andres Freund <andres(at)2ndquadrant(dot)com>
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: refactor heap_deform_tuple guts
Date: 2013-08-07 17:09:14
Message-ID: 20130807170914.GH10718@eldon.alvh.no-ip.org
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Andres Freund escribió:
> On 2013-08-07 10:36:52 -0400, Alvaro Herrera wrote:

> > Yeah, I guess in isolation this doesn't make that much sense. I am
> > hesitant to create a third copy in the minmax patch, but I will do that
> > for now and propose the refactoring later.
>
> Well, you didn't mention upthread that you want to do this because
> you're going to need another variant of the same code. Imo that's
> sufficient reasoning.

Well, I would need to tweak the new code again, moving it from
heaptuple.c to htup_details.h as a STATIC_IF_INLINE function; and
furthermore I have noticed that if I modify the code in minmax, I can
have it do one more thing that I would need to do outside of it anyway.
(These tuples have two null bitmaps; I would have to decode the second
one separately. Doing it inside the new "deform" variant is much
easier.)

--
Álvaro Herrera http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services

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