On Mon, Jan 30, 2017 at 6:54 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Andres Freund <andres@anarazel.de> writes:
>> Wonder if we there's an argument to be made for implementing this
>> roughly similarly to split_pathtarget_at_srf - instead of injecting a
>> ProjectSet node we'd add a FunctionScan node below a Result node.
>
> Yeah, possibly. That would have the advantage of avoiding an ExecProject
> step when the SRFs aren't buried, which would certainly be the expected
> case.
>
> If you don't want to make ExecInitExpr responsible, then the planner would
> have to do something like split_pathtarget_at_srf anyway to decompose the
> expressions, no matter which executor representation we use.
Did we do anything about this? Are we going to?
--
Robert Haas
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