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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Andres Freund <andres@anarazel.de>
Cc: Kevin Grittner <kgrittn@gmail.com>
Cc: Robert Haas <robertmhaas@gmail.com>
Cc: pgsql-hackers@postgresql.org <pgsql-hackers@postgresql.org>
Subject: Re: Implement targetlist SRFs using ROWS FROM() (was Changed SRF in targetlist handling)
Date: Fri, 02 Sep 2016 12:32:51 -0400
Message-ID: <18142.1472833971@sss.pgh.pa.us> (raw)
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Andres Freund <andres@anarazel.de> writes:
> ...  What we could do is to add efficient
> ROWS FROM (..) WITH ORDINALITY ORDER bY ordinality;
> support.

Hm?

regression=# explain select * from rows from (generate_series(1,10)) with ordinality order by ordinality;
                               QUERY PLAN                                
-------------------------------------------------------------------------
 Function Scan on generate_series  (cost=0.00..10.00 rows=1000 width=12)
(1 row)

			regards, tom lane


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