| From: | Tony Caduto <tony_caduto(at)amsoftwaredesign(dot)com> |
|---|---|
| To: | J S B <jsbali(at)gmail(dot)com>, pgsql-general(at)postgresql(dot)org |
| Subject: | Re: berkley sockets |
| Date: | 2006-09-15 14:49:24 |
| Message-ID: | 450ABD74.6020105@amsoftwaredesign.com |
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| Thread: | |
| Lists: | pgsql-general |
J S B wrote:
> What exactly is this LISTEN/NOTIFY?
> Is it some function in socket programing or some part of postgres?
>
> ~Jas
>
Listen/Notify is a means of letting a connected postgresql client know a
insert or other event has occurred.
It won't help if you need to send a command/message to some other tcp/ip
daemon.
You set up a rule to use Notify:
create rule InsertDetect as on INSERT to notify_test do notify recinsert
Then on the client side (if the client has libpq listen capability) you
listen for the incoming notification messages and react to them
accordingly.
--
Tony Caduto
AM Software Design
http://www.amsoftwaredesign.com
Home of PG Lightning Admin for Postgresql
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