Re: Rework the way multixact truncations work - Mailing list pgsql-hackers

From Robert Haas
Subject Re: Rework the way multixact truncations work
Date
Msg-id CA+TgmobqGzjs2wN2DLvdd9v3TuWuhJBCEpt_M-qWzKm8+cHzKQ@mail.gmail.com
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In response to Re: Rework the way multixact truncations work  (Noah Misch <noah@leadboat.com>)
Responses Re: Rework the way multixact truncations work
Re: Rework the way multixact truncations work
List pgsql-hackers
On Fri, Nov 27, 2015 at 5:16 PM, Noah Misch <noah@leadboat.com> wrote:
> On Mon, Nov 23, 2015 at 11:44:45AM -0800, Peter Geoghegan wrote:
>> On Sun, Nov 8, 2015 at 11:52 AM, Noah Misch <noah@leadboat.com> wrote:
>> >> I'm not following along right now - in order to make cleanups the plan is to revert a couple commits and then
redothem prettyfied?
 
>> >
>> > Yes, essentially.  Given the volume of updates, this seemed neater than
>> > framing those updates as in-tree incremental development.
>>
>> I think that's an odd way of representing this work. I tend to
>> remember roughly when major things were committed even years later. An
>> outright revert should represent a total back out of the original
>> commit IMV. Otherwise, a git blame can be quite misleading.
>
> I think you're saying that "clearer git blame" is a more-important reason than
> "volume of updates" for preferring an outright revert over in-tree incremental
> development.  Fair preference.  If that's a correct reading of your message,
> then we do agree on the bottom line.

Hmm.  I read Peter's message as agreeing with Andres rather than with
you.  And I have to say I agree with Andres as well.  I think it's
weird to back a commit out only to put a bunch of very similar stuff
back in.  Even figuring out what you've actually changed here seems
rather hard.  I couldn't get github to give me a diff showing your
changes vs. master.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company



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