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Re: Server->Client notification (without polling)?

From: Wolfgang Keller <wolfgang(dot)keller(dot)nospam(at)gmx(dot)de>
To: pgsql-novice(at)postgresql(dot)org
Subject: Re: Server->Client notification (without polling)?
Date: 2006-09-20 19:54:03
Message-ID: 0001HW.C13768FB00837AA2F0305530@news.individual.de (view raw or flat)
Thread:
Lists: pgsql-novice
>> As I understand from the manual, the LISTEN and NOTIFY SQL commands require 
>> to poll the database to retrieve the notification events...?
> 
> No, they don't.

Thanks for the reply. :-)

I read the manual again and now I understand that it's the libpq client 
library which requires polling a function to retrieve the notifications 
received from the server. Is there no way to tell the library "please call me 
when a notification arrives"?

P.S.: I'm accessing PostgreSQL from Python if this matters, any of the Python 
modules for PostgreSQL access is ok for me instead of libpq.

TIA,

Sincerely,

Wolfgang Keller

-- 
My email-address is correct.
Do NOT remove ".nospam" to reply.


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