Re: [HACKERS] Anyone working on asynchronous NOTIFY reception? - Mailing list pgsql-hackers

From Bruce Momjian
Subject Re: [HACKERS] Anyone working on asynchronous NOTIFY reception?
Date
Msg-id 199804152057.QAA06328@candle.pha.pa.us
Whole thread Raw
In response to Anyone working on asynchronous NOTIFY reception?  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: [HACKERS] Anyone working on asynchronous NOTIFY reception?
List pgsql-hackers
>
> Hi folks,
>   Hope I'm not making a fool of myself by posting to a list I just
> joined ... but I couldn't find much about this in the list archives.
>
> I'm looking at an application that involves several client processes
> communicating in real time via a pgsql database.   "Real time" means
> that when one client writes something, any other clients that are
> interested need to know about it within a few seconds at most.
> The other clients can use LISTEN/NOTIFY to detect updates --- but
> I don't think I can accept the notion of continuously doing empty
> queries to receive the notifies.  That'll drive performance into the
> ground.  What I want is for a client to be able to sleep until
> something interesting happens.

The person who knows the most about this is:

    dz@cs.unitn.it (Massimo Dal Zotto)


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