| From: | Joe Conway <mail(at)joeconway(dot)com> |
|---|---|
| To: | Hannu Krosing <hannu(at)krosing(dot)net> |
| Cc: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Adding pipelining support to set returning functions |
| Date: | 2008-04-06 21:32:46 |
| Message-ID: | 47F9417E.7090104@joeconway.com |
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| Lists: | pgsql-hackers |
Hannu Krosing wrote:
> A question to all pg hackers
>
> Is anybody working on adding pipelining to set returning functions.
Not as far as I know.
> How much effort would it take ?
>
> Where should I start digging ?
I don't remember all the details, but I think the original SRF patch
that I did was pipelined rather that materialized, and there were
difficult issues that led to going with the materialized version
"first", with a pipelined version to "eventually" follow.
SFRM_Materialize is for the former and SFRM_ValuePerCall was supposed to
be for the latter. The first thread was this one:
http://archives.postgresql.org/pgsql-hackers/2002-04/msg01201.php
Joe
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