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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Bruce Momjian <bruce@momjian.us>
Cc: Michael Paquier <michael.paquier@gmail.com>
Cc: Andres Freund <andres@anarazel.de>
Cc: Robert Haas <robertmhaas@gmail.com>
Cc: Stephen Frost <sfrost@snowman.net>
Cc: Magnus Hagander <magnus@hagander.net>
Cc: pgsql-hackers@postgresql.org <pgsql-hackers@postgresql.org>
Cc: pgsql-core <pgsql-core@postgresql.org>
Subject: Re: [CORE] postpone next week's release
Date: Sun, 31 May 2015 11:55:44 -0400
Message-ID: <32433.1433087744@sss.pgh.pa.us> (raw)
In-Reply-To: <20150531140305.GD13697@momjian.us>
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	<12510.1432958887@sss.pgh.pa.us>
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	<20150530154559.GA25053@momjian.us>
	<20150530204727.GJ13944@alap3.anarazel.de>
	<20150531024845.GB13697@momjian.us>
	<CAB7nPqQgitxp5505bSdNpGxOwrDebqF520BYLi=fJQLp0ZSd3A@mail.gmail.com>
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Bruce Momjian <bruce@momjian.us> writes:
>> FYI, I realize that one additional thing that has discouraged code
>> reorganization is the additional backpatch overhead.  I think we now
>> need to accept that our reorganization-adverse approach might have cost
>> us some reliability, and that reorganization is going to add work to
>> backpatching.

> Actually, code reorganization in HEAD might cause backpatching to be
> more buggy, reducing reliability --- obviously we need to have a
> discussion about that.

Commit 6b700301c36e380eb4972ab72c0e914cae60f9fd is a recent real example.
Not that that should dissuade us from ever doing any reorganizations,
but it's foolish to discount back-patching costs.

			regards, tom lane


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