A simple extension immitating pg_notify

From: Mehran Ziadloo <mehran20(at)hotmail(dot)com>
To: "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org>
Subject: A simple extension immitating pg_notify
Date: 2016-07-24 03:24:39
Message-ID: DUB121-W13322AE2F6D227FF6900F7D00C0@phx.gbl
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Hello everyone,
I'm looking for a way to send notifications from within one database toanother. As if pg_notify accepted a database name, or even to all of thedatabases. So far I could not find a way to do so. Then someone told me that Ineed to implement this feature myself and add it PostgreSQL as an extension.
Being new to extension development, I have no idea where to start. Can someoneplease guide me to the right direction? I'm sure implementing such a functionis pretty simple but only if you know where to start, which I don't!
Regards,Mehran

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