Trigger that will execute external program - Mailing list pgsql-sql

From David Loh
Subject Trigger that will execute external program
Date
Msg-id 001e01c2d64c$2ab838d0$f92c2c0a@davidloh
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Responses Re: Trigger that will execute external program
List pgsql-sql
Hi all.
I'd like to know if postgresql has the capability of execute external program with the trigger, for example, I had a trigger call "exceed_limit", when this trigger has fire, instead of update other relations, it will also execute a external program '/bin/send_email', is that possble ?
If it's possible, can any of you guy please show me how to do it ?
Thanks in advance.

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