Re: C trigger using system(3) to execute a php script

From: Douglas McNaught <doug(at)mcnaught(dot)org>
To: David Rio Deiros <driodeiros(at)gmail(dot)com>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: C trigger using system(3) to execute a php script
Date: 2006-02-16 19:24:06
Message-ID: 87lkwb9kfd.fsf@suzuka.mcnaught.org
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David Rio Deiros <driodeiros(at)gmail(dot)com> writes:

> Then, I wanted to run the full php script from the trigger. I tried
> the script manually, form the shell, and it worked perfectly. Notice
> that the script doesn't generate any stdin/stdout output. So I changed
> the system(3) parameter to call my php script instead of the test one.
> I tried it and it didn't work. The php script doesn't perform the
> modifications it suppose to in the database.
>
> The php script is about 150 lines long and performs like 5 or 6 sql
> queries/inserts against the database.

Why would you do it that way? The queries/inserts won't be rolled
back if the transaction containing the trigger aborts (because they'd
be done in a separate session). Why not just do your queries from C
using the SPI interface?

-Doug

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