Re: Patch: Write Amplification Reduction Method (WARM)

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Pavan Deolasee <pavan(dot)deolasee(at)gmail(dot)com>
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Jaime Casanova <jaime(dot)casanova(at)2ndquadrant(dot)com>, Haribabu Kommi <kommi(dot)haribabu(at)gmail(dot)com>, Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Patch: Write Amplification Reduction Method (WARM)
Date: 2017-02-25 14:12:42
Message-ID: 20170225141242.GM23209@momjian.us
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On Sat, Feb 25, 2017 at 10:50:57AM +0530, Pavan Deolasee wrote:
>
> On Fri, Feb 24, 2017 at 9:47 PM, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
> And there are no bugs, right?  :-)
>
> Yeah yeah absolutely nothing. Just like any other feature committed to Postgres
> so far ;-)
>
> I need to polish the chain conversion patch a bit and also add missing support
> for redo, hash indexes etc. Support for hash indexes will need overloading of
> ip_posid bits in the index tuple (since there are no free bits left in hash
> tuples). I plan to work on that next and submit a fully functional patch,
> hopefully before the commit-fest starts.
>
> (I have mentioned the idea of overloading ip_posid bits a few times now and
> haven't heard any objection so far. Well, that could either mean that nobody
> has read those emails seriously or there is general acceptance to that idea.. I
> am assuming latter :-))

Yes, I think it is the latter.

--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com

+ As you are, so once was I. As I am, so you will be. +
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