From: | Paul Ramsey <pramsey(at)cleverelephant(dot)ca> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, Simon Riggs <simon(at)2ndquadrant(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, Pgsql Hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: [PATCH] postgres_fdw extension support |
Date: | 2015-07-21 21:06:39 |
Message-ID: | CACowWR3MkLo1xCMNPU_qrPh5FJxTOL=-MZSfoP5+Wkd0-bkgEw@mail.gmail.com |
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On Tue, Jul 21, 2015 at 11:29 AM, Paul Ramsey <pramsey(at)cleverelephant(dot)ca> wrote:
> On July 21, 2015 at 11:22:12 AM, Tom Lane (tgl(at)sss(dot)pgh(dot)pa(dot)us) wrote:
>
> No, *not* populated first-time-through, because that won't handle any of
> the CREATE, DROP, or UPGRADE cases. It's also doing a lot of work you
> might never need. I was thinking of "populate on demand", that is, first
> time you need to know whether function X is shippable, you find that out
> and then cache the answer (whether it be positive or negative).
>
>
> Roger that. Off to the races..
Attached, reworked with a local cache. I felt a little dirty sticking
the cache entry right in postgres_fdw.c, so I broke out all my
nonsense into shippable.c.
Thanks!
P
Attachment | Content-Type | Size |
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fdw-extension-support4.diff | text/plain | 15.5 KB |
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