Re: Terminate query on page exit

From: Jeff Janes <jeff(dot)janes(at)gmail(dot)com>
To: Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>
Cc: patrick keshishian <pkeshish(at)gmail(dot)com>, pgsql-general <pgsql-general(at)postgresql(dot)org>
Subject: Re: Terminate query on page exit
Date: 2013-02-19 18:44:27
Message-ID: CAMkU=1z-FgOay0QVF+3HZ3V3_iqpNYV6uTJtcJTdessvMhqwMQ@mail.gmail.com
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On Tue, Feb 19, 2013 at 4:38 AM, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> wrote:
> 2013/2/19 patrick keshishian <pkeshish(at)gmail(dot)com>:
>> On Tuesday, February 19, 2013, Albe Laurenz wrote:
>>>
>>>
>>> One crude method would be to set statement_timeout to a nonzero
>>> value - then queries that take longer than that many seconds
>>> will be canceled.
>>
>>
>> you don't truly mean to advise that, do you? :)
>
> it is not bad advice - usually all long queries should be cancelled by
> timeout - and timeout is the most simple and sometimes good enough
> solution. You can set timeout just for account used for login from web
> application

It would be nice if a long running query could occasionally check to
see if it still has somewhere to send the results it is computing.
Rather than running for hours only to give a "could not send data to
client: Broken pipe" as soon as the first row becomes available.
client_alive_timeout?

Cheers,

Jeff

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