Re: Some questions about mammoth replication

From: Andreas Pflug <pgadmin(at)pse-consulting(dot)de>
To: Hannu Krosing <hannu(at)skype(dot)net>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Some questions about mammoth replication
Date: 2007-10-11 15:47:18
Message-ID: 470E4586.9000704@pse-consulting.de
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Alexey Klyukin wrote:
>
>
>> For what use cases do you think your WAL-based approach is better than
>> Slony/Skytools trigger-based one ?
>>
>
> A pure trigger based approach can only replicate data for the commands
> which fire triggers. AFAIK Slony is unable to replicate TRUNCATE
> command
It could be wrapped with ddl_script which obviously isn't transparent to
the application, but I guess a table that's truncated regularly won't be
a typical candidate for (async) replication either.

Regards,
Andreas

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