From: S.F. Lee <sflee_tw@yahoo.com>
To: pgsql-sql@postgresql.org
Subject: how to execute a C program via trigger ?
Date: Mon, 4 Dec 2000 00:47:29 -0800 (PST)
Message-ID: <20001204084729.45208.qmail@web10402.mail.yahoo.com> (raw)
Hi,
I am using Red Hat 6.1 + PostgreSQL 7.0.3. All of
my
applications are developed by C and ECPG. I would
like to know how to execute a C program by Trigger,for
example:
1. I have a program my_c_program.c shuch as:
#include <stdio.h>
main()
{
printf("Hello World !\n");
}
2. I create a table foo by following command
CREATE TABLE foo
(
x int4
);
3. create a trigger foo_trig :
create trigger foo_trig after update
on foo for each row execute procedure sql_c();
4. I don't know how to design sql_c(), can anyone
give a small plpsql program that can execute
my_c_program?
regards, S.F. Lee
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