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Re: sending mail from Postgres

From: Michael Fuhr <mike(at)fuhr(dot)org>
To: Aftab Alam <aalam(at)tatashare(dot)com>
Cc: "'postgre'" <pgsql-admin(at)postgresql(dot)org>
Subject: Re: sending mail from Postgres
Date: 2005-12-27 17:41:14
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Lists: pgsql-admin
On Tue, Dec 27, 2005 at 02:44:32PM +0530, Aftab Alam wrote:
> How can i send mail form postgresql.

You could write a function in a language like plperlu, pltclu, or
plpython, but a problem with functions that have effects outside
the database is that those effects can't be undone if the transaction
rolls back.  A common example is a trigger that sends email when a
table is changed: if the trigger fires and then you roll back the
transaction, it's too late to cancel the email.  Depending on what
you're doing it might be better to use LISTEN/NOTIFY and have a
client program send email when it receives a notification (notifications
are sent only when the transaction commits).

Michael Fuhr

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