| From: | Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
|---|---|
| To: | Michael Fuhr <mike(at)fuhr(dot)org> |
| Cc: | chelliah gabriel - Sun Microsystems - Bangalore India <Chelliah(dot)Gabriel(at)Sun(dot)COM>, pgsql-general(at)postgresql(dot)org |
| Subject: | Re: Instead of Triggers |
| Date: | 2006-10-29 16:27:12 |
| Message-ID: | 20061029162712.GC2388@alvh.no-ip.org |
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| Thread: | |
| Lists: | pgsql-general |
Michael Fuhr wrote:
> On Fri, Oct 27, 2006 at 05:49:19PM +0530, chelliah gabriel - Sun Microsystems - Bangalore India wrote:
> > Does PG support Instead of Triggers?.
>
> PostgreSQL has INSTEAD OF rules.
It also has the ability to prevent the execution of the action which
triggered the, um, trigger (by returning NULL in a BEFORE/FOR EACH ROW
trigger), while executing a different action (say, inserting in a
different table).
--
Alvaro Herrera http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.
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