Re: Freeze avoidance of very large table.

From: Andres Freund <andres(at)anarazel(dot)de>
To: Simon Riggs <simon(at)2ndQuadrant(dot)com>
Cc: Sawada Masahiko <sawada(dot)mshk(at)gmail(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Fujii Masao <masao(dot)fujii(at)gmail(dot)com>, Jim Nasby <Jim(dot)Nasby(at)bluetreble(dot)com>, Petr Jelinek <petr(at)2ndquadrant(dot)com>, Bruce Momjian <bruce(at)momjian(dot)us>, Robert Haas <robertmhaas(at)gmail(dot)com>, Greg Stark <stark(at)mit(dot)edu>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Jeff Janes <jeff(dot)janes(at)gmail(dot)com>
Subject: Re: Freeze avoidance of very large table.
Date: 2015-07-07 15:37:44
Message-ID: 20150707153744.GC10242@alap3.anarazel.de
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On 2015-07-07 16:25:13 +0100, Simon Riggs wrote:
> I don't think pg_freespacemap is the right place.

I agree that pg_freespacemap sounds like an odd location.

> I'd prefer to add that as a single function into core, so we can write
> formal tests.

With the advent of src/test/modules it's not really a prerequisite for
things to be builtin to be testable. I think there's fair arguments for
moving stuff like pg_stattuple, pg_freespacemap, pg_buffercache into
core at some point, but that's probably a separate discussion.

Regards,

Andres

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