Re: refreshed table function support

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>
Cc: pgsql-patches(at)postgresql(dot)org, Neil Conway <neilc(at)samurai(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Subject: Re: refreshed table function support
Date: 2007-05-06 16:59:31
Message-ID: 200705061659.l46GxVa11647@momjian.us
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Your patch has been added to the PostgreSQL unapplied patches list at:

http://momjian.postgresql.org/cgi-bin/pgpatches

It will be applied as soon as one of the PostgreSQL committers reviews
and approves it.

---------------------------------------------------------------------------

Pavel Stehule wrote:
> Hello
>
> This patch contains implementation of table functions defined in ANSI
> SQL 2003 (Conformance with SQL2003: T326 Table functions). Patch adds
> new proargmode PROARGMODE_TABLE (based on PROARGMODE_OUT). Columns of
> output table are similar OUT arguments, but don't generate any
> variables.
>
> Proposal: http://archives.postgresql.org/pgsql-hackers/2007-02/msg00318.php
> Description: SIGMOD Record, Vol. 33, No. 1, March 2004
>
> Patch contains three diffs:
> * pgdumpclean .. small readability fix for pg_dump.c
> * tabfce .. implementation of table functions
> * plpgsql-tabfce .. table expression support for plpgsql's return stmt
>
> This patch can broke applications which scan argmodes. Plpgsql support
> is separated because plpgsql implementation isn't standardised. But
> current plpgsql hasn't any method for one statement table output from
> function, and table expression is clean and simple tool for it.
>
> Older version was broken by enum patch and scrollable cursor patch.
> Older version didn't dump table functions correctly. It's fixed now.
>
> Regards
> Pavel Stehule

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>
> ---------------------------(end of broadcast)---------------------------
> TIP 9: In versions below 8.0, the planner will ignore your desire to
> choose an index scan if your joining column's datatypes do not
> match

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

+ If your life is a hard drive, Christ can be your backup. +

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