| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Andres Freund <andres(at)anarazel(dot)de> |
| Cc: | Kevin Grittner <kgrittn(at)gmail(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Implement targetlist SRFs using ROWS FROM() (was Changed SRF in targetlist handling) |
| Date: | 2016-09-02 16:32:51 |
| Message-ID: | 18142.1472833971@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Andres Freund <andres(at)anarazel(dot)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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