Re: Socket communication for contrib

Hans-Jürgen Schönig <postgres@cybertec.at> writes:
> People asked me to put a simple extension for PostgreSQL Open Source.
> The attached package contains a simple functions whichs tells a remote 
> TCP socket that somebody is about to modify a certain table.

Doesn't this encourage violation of the basic notion of a transaction?
The message will be sent immediately, whether or not the sending
transaction actually commits.
        regards, tom lane