Re: [HACKERS] EvalPlanQual behaves oddly for FDW queries involving system columns

From: Andres Freund <andres(at)anarazel(dot)de>
To: Etsuro Fujita <fujita(dot)etsuro(at)lab(dot)ntt(dot)co(dot)jp>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Jim Nasby <Jim(dot)Nasby(at)BlueTreble(dot)com>, Kyotaro HORIGUCHI <horiguchi(dot)kyotaro(at)lab(dot)ntt(dot)co(dot)jp>, ashutosh(dot)bapat(at)enterprisedb(dot)com, pgsql-hackers(at)postgresql(dot)org
Subject: Re: [HACKERS] EvalPlanQual behaves oddly for FDW queries involving system columns
Date: 2019-03-01 18:57:09
Message-ID: 20190301185709.qx3nhtdlrt2w26yk@alap3.anarazel.de
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Hi,

On 2019-02-28 10:18:36 -0800, Andres Freund wrote:
> On 2019-02-28 18:28:37 +0900, Etsuro Fujita wrote:
> > > I'm currently
> > > converting the EPQ machinery to slots, and in course of that I (with
> > > Horiguchi-san's help), converted RefetchForeignRow to return a slot. But
> > > there's currently no in-core user of this facility... I guess I can
> > > rebase the preliminary postgres_fdw patch here, but it bitrotted
> > > significantly.
> >
> > I'll rebase that patch and help the testing, if you want me to.
>
> That'd be awesome.

FWIW, I pushed the EPQ patch, doing this conversion blindly. It'd be
awesome if you'd check that it actually works...

Thanks,

Andres

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