Re: [PATCH] session_replication_role = replica with TRUNCATE

From: Marco Nenciarini <marco(dot)nenciarini(at)2ndquadrant(dot)it>
To: Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>, Petr Jelinek <petr(dot)jelinek(at)2ndquadrant(dot)com>, Craig Ringer <craig(at)2ndquadrant(dot)com>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: [PATCH] session_replication_role = replica with TRUNCATE
Date: 2018-01-19 11:41:04
Message-ID: 473fcf49-5fed-7a24-a0a1-05a61a82173e@2ndquadrant.it
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Hi Peter,

Il 18/01/18 17:30, Peter Eisentraut ha scritto:
> On 1/17/18 11:33, Petr Jelinek wrote:
>>> P.S: I'm struggling to understand why we have two possible values of
>>> session_replication_role settings that behave identically (origin and
>>> local). I'm unable to see any difference according to the code or the
>>> documentation, so I'm wondering if we should document that they are the
>>> same.
>>>
>> It's for use by 3rd party tools (afaik both londiste and slony use it)
>> to differentiate between replicated and not replicated changes.
>
> I have committed some documentation updates and tests to cover this a
> bit better.
>

Thanks, the documentation is a lot clearer now.

This superseded the documentation change that was in the patch, so I've
removed it from the v3 version.

Regards,
Marco

--
Marco Nenciarini - 2ndQuadrant Italy
PostgreSQL Training, Services and Support
marco(dot)nenciarini(at)2ndQuadrant(dot)it | www.2ndQuadrant.it

Attachment Content-Type Size
0001-truncate_ignore_fks_role_replica.v3.patch text/plain 1.4 KB

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