Horton

Re: Implement targetlist SRFs using ROWS FROM() (was Changed SRF in targetlist handling)

Andres Freund <andres@anarazel.de>

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From: Andres Freund <andres@anarazel.de>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Robert Haas <robertmhaas@gmail.com>, "pgsql-hackers@postgresql.org" <pgsql-hackers@postgresql.org>
Date: 2017-01-18T22:11:54Z
Lists: pgsql-hackers

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On 2017-01-18 16:56:46 -0500, Tom Lane wrote:
> Andres Freund <andres@anarazel.de> writes:
> I have not actually looked at 0003 at all yet.  So yeah, please post
> for review after you're done rebasing.

Here's a rebased and lightly massaged version. I'm vanishing in a
meeting for a bit, thought it'd be more useful to get it now rather than
later.

(I also noticed the previous patch should have had a catversion bump :(,
will do after the meeting).

- Andres

Commits

  1. Remove obsoleted code relating to targetlist SRF evaluation.

  2. Doc: improve documentation of new SRF-in-tlist behavior.

  3. Move targetlist SRF handling from expression evaluation to new executor node.

  4. Don't split up SRFs when choosing to postpone SELECT output expressions.