Re: [Patch] pg_rewind: options to use restore_command from recovery.conf or command line

From: Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>
To: Michael Paquier <michael(at)paquier(dot)xyz>, Alexey Kondratov <a(dot)kondratov(at)postgrespro(dot)ru>
Cc: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Alexander Korotkov <a(dot)korotkov(at)postgrespro(dot)ru>, Kuntal Ghosh <kuntalghosh(dot)2007(at)gmail(dot)com>, Liudmila Mantrova <l(dot)mantrova(at)postgrespro(dot)ru>, Thomas Munro <thomas(dot)munro(at)gmail(dot)com>, Andrey Borodin <x4mmm(at)yandex-team(dot)ru>, David Steele <david(at)pgmasters(dot)net>, Andres Freund <andres(at)anarazel(dot)de>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Dmitry Dolgov <9erthalion6(at)gmail(dot)com>, vladimirlesk(at)yandex-team(dot)ru, dsarafan(at)yandex-team(dot)ru
Subject: Re: [Patch] pg_rewind: options to use restore_command from recovery.conf or command line
Date: 2020-06-06 17:48:57
Message-ID: e9766d71-8655-ac86-bdf6-77e0e7169977@2ndquadrant.com
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On 2020-03-31 08:48, Michael Paquier wrote:
> On Mon, Mar 30, 2020 at 05:00:01PM +0300, Alexey Kondratov wrote:
>> What do think about adding following sanity check into xlogarchive.c?
>>
>> +#ifdef FRONTEND
>> +#error "This file is not expected to be compiled for frontend code"
>> +#endif
>>
>> It would prevent someone from adding typedefs and any other common
>> definitions into xlogarchive.h in the future, leading to the accidental
>> inclusion of both xlogarchive.h and fe_archive.h in the same time.
> I don't see much the point as this would fail to compile anyway, and
> that's not project-style. Note that we have already a clear
> separation here between the backend and the frontend code here as
> xlogarchive.h is backend-only and fe_archive.h is frontend-only.

Why is fe_archive.c in src/common/ and not in src/fe_utils/? It is not
"common" to frontend and backend.

It actually defines functions that clash with functions in the backend,
so this seems doubly wrong.

--
Peter Eisentraut http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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