From: Alvaro Herrera <alvherre@2ndquadrant.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: David Rowley <david.rowley@2ndquadrant.com>
Cc: Tomas Vondra <tomas.vondra@2ndquadrant.com>
Cc: Simon Riggs <simon@2ndquadrant.com>
Cc: PostgreSQL-development <pgsql-hackers@postgresql.org>
Subject: Re: Performance improvement for joins where outer side is unique
Date: Thu, 7 Apr 2016 16:02:14 -0300
Message-ID: <20160407190214.GA569221@alvherre.pgsql> (raw)
In-Reply-To: <11488.1460054978@sss.pgh.pa.us>
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Tom Lane wrote:
> Anyway, while refactoring the make_join_rel/add_paths_to_joinrel division
> of labor wouldn't be such a big deal in itself, I don't want to commit a
> change to JoinType only to undo it later; that would be too much churn.
> So I think we need to resolve this question before we can move forward.
> I don't know if you have time to look at this now --- my clock says it's
> already Friday morning in New Zealand.
FWIW the feature freeze rules state that it is allowed for a committer
to request an extension to the feature freeze date for individual
patches:
https://www.postgresql.org/message-id/CA%2BTgmoY56w5FOzeEo%2Bi48qehL%2BBsVTwy-Q1M0xjUhUCwgGW7-Q%40ma...
It seems to me that the restrictions laid out there are well met for
this patch, if you only need a couple of additional days for this patch
to get in.
--
Álvaro Herrera http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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Cc: alvherre@2ndquadrant.com, tgl@sss.pgh.pa.us, david.rowley@2ndquadrant.com, tomas.vondra@2ndquadrant.com, simon@2ndquadrant.com
Subject: Re: Performance improvement for joins where outer side is unique
In-Reply-To: <20160407190214.GA569221@alvherre.pgsql>
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