Horton

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

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Andres Freund <andres@anarazel.de>
Cc: pgsql-hackers@postgresql.org
Date: 2016-10-31T16:25:01Z
Lists: pgsql-hackers 
Andres Freund <andres@anarazel.de> writes:
> On 2016-09-14 19:28:25 -0400, Tom Lane wrote:
>> So I think we should continue investigating this way of doing things.
>> I'll try to take a look at the executor end of it tomorrow.  However
>> I'm leaving Friday for a week's vacation, and may not have anything to
>> show before that.

> Are you planning to work on the execution side of things? I otherwise
> can take a stab...

My plan is to start on this when I go back into commitfest mode,
but right now I'm trying to produce a draft patch for RLS changes.

			regards, tom lane

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.