Re: Parameterized-path cost comparisons need some work - Mailing list pgsql-hackers

From Alvaro Herrera
Subject Re: Parameterized-path cost comparisons need some work
Date
Msg-id 1334689263-sup-361@alvh.no-ip.org
Whole thread Raw
In response to Re: Parameterized-path cost comparisons need some work  (Robert Haas <robertmhaas@gmail.com>)
List pgsql-hackers
Excerpts from Robert Haas's message of mar abr 17 15:46:23 -0300 2012:
> On Tue, Apr 17, 2012 at 12:14 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:

> > The core of the patch is in the new functions get_baserel_parampathinfo
> > and get_joinrel_parampathinfo, which look up or construct ParamPathInfos,
> > and join_clause_is_parameterizable_for and
> > join_clause_is_parameterizable_within, which control
> > movement of parameterizable join clauses.  (I'm not that thrilled with the
> > names of the latter two functions, anybody got a better idea?)  The rest
> > of it is pretty much boilerplate changes and replacing ad-hoc logic with
> > uses of this stuff.
>
> Parameterizable is such a mouthful.  I wish we had a better word.

P13e ?

--
Álvaro Herrera <alvherre@commandprompt.com>
The PostgreSQL Company - Command Prompt, Inc.
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