Re: [HACKERS] Anyone working on asynchronous NOTIFY reception?
От | Bruce Momjian |
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Тема | Re: [HACKERS] Anyone working on asynchronous NOTIFY reception? |
Дата | |
Msg-id | 199804152057.QAA06328@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Anyone working on asynchronous NOTIFY reception? (Tom Lane <tgl@sss.pgh.pa.us>) |
Ответы |
Re: [HACKERS] Anyone working on asynchronous NOTIFY reception?
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Список | 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) -- Bruce Momjian | 830 Blythe Avenue maillist@candle.pha.pa.us | Drexel Hill, Pennsylvania 19026 + If your life is a hard drive, | (610) 353-9879(w) + Christ can be your backup. | (610) 853-3000(h)
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