Re: pg_sleep_enhancements.patch

From: Vik Fearing <vik(dot)fearing(at)dalibo(dot)com>
To: Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>
Cc: PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>, Robert Haas <robertmhaas(at)gmail(dot)com>, Fabien COELHO <coelho(at)cri(dot)ensmp(dot)fr>
Subject: Re: pg_sleep_enhancements.patch
Date: 2014-01-29 19:30:48
Message-ID: 52E956E8.30706@dalibo.com
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On 01/29/2014 08:21 PM, Pavel Stehule wrote:
> second question - is not this functionality too dangerous? If somebody
> use it as scheduler, then
>
> a) can holds connect, session data, locks too long time
> b) it can stop on query timeout probably much more early then user expect
>
> What is expected use case?

It is no more dangerous than plain pg_sleep(). The use case is
convenience and clarity of code.

I don't think people will be using it as a scheduler any more than they
do with pg_sleep() because it can't cross transaction boundaries.

--
Vik

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