Re: PostgreSQL clustering VS MySQL clustering

From: Gaetano Mendola <mendola(at)bigfoot(dot)com>
To: pgsql-performance(at)postgresql(dot)org
Subject: Re: PostgreSQL clustering VS MySQL clustering
Date: 2005-02-18 23:20:08
Message-ID: cv5t83$1njl$1@news.hub.org
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Josh Berkus wrote:
> Tatsuo,
>
>
>>Yes. However it would be pretty easy to modify pgpool so that it could
>>cope with Slony-I. I.e.
>>
>>1) pgpool does the load balance and sends query to Slony-I's slave and
>> master if the query is SELECT.
>>
>>2) pgpool sends query only to the master if the query is other than
>> SELECT.

Don't you think that this is unsafe ?

SELECT foo(id), id
FROM bar;

where foo have side effect.

Is pgpool able to detect it and perform this select on the master ?

Regards
Gaetano Mendola

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