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

On 2016-10-31 09:06:39 -0700, Andres Freund wrote:
> On 2016-09-14 19:28:25 -0400, Tom Lane wrote:
> > Andres Freund <andres(at)anarazel(dot)de> writes:
> > > On 2016-09-12 19:35:22 -0400, Tom Lane wrote:
> > Here's a draft patch that is just meant to investigate what the planner
> > changes might look like if we do it in the pipelined-result way.
> > Accordingly, I didn't touch the executor, but just had it emit regular
> > Result nodes for SRF-execution steps. However, the SRFs are all
> > guaranteed to appear at top level of their respective tlists, so that
> > those Results could be replaced with something that works like
> > nodeFunctionscan.
>
> > 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...

Doing so now.

Andres