Re: [PATCH] session_replication_role = replica with TRUNCATE - Mailing list pgsql-hackers

From Petr Jelinek
Subject Re: [PATCH] session_replication_role = replica with TRUNCATE
Date
Msg-id 98ab66a5-b55a-1e0d-5c0a-9823dbf9c125@2ndquadrant.com
Whole thread Raw
In response to Re: [PATCH] session_replication_role = replica with TRUNCATE  (Marco Nenciarini <marco.nenciarini@2ndquadrant.it>)
Responses Re: [PATCH] session_replication_role = replica with TRUNCATE
List pgsql-hackers
On 19/01/18 12:41, Marco Nenciarini wrote:
> 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 This superseded the documentation change that was in the patch, so I've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.
> 

Now that we have tests for this, I think it would be good idea to expand
them to cover the new behavior of TRUNCATE in this patch.

-- 
  Petr Jelinek                  http://www.2ndQuadrant.com/
  PostgreSQL Development, 24x7 Support, Training & Services


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