From: Albrecht Berger <berger1517@gmx.ch>
To: pgsql <pgsql-sql@postgresql.org>
Subject: trigger : emulate "instead of" with before ?
Date: Fri, 13 Jun 2003 13:50:54 +0200
Message-ID: <046801c331a2$0c483e70$a07ba8c0@wxp> (raw)
Hello,
I need a trigger which is updating a delete flag of a row instead of
deleting it physically.
How do I implement a trigger which doesn't execute a delete without raising
an exception
in plsql ?
CREATE TRIGGER trigger1 BEFORE DELETE ON table1
FOR EACH ROW EXECUTE PROCEDURE setDeleteFlag ();
If I use
RAISE EXCEPTION "..."
the delete statement isn't executed, but I think the transaction is rolled
back too, am I right ?
So what is the best way to implement something (Oracle like) like that :
CREATE TRIGGER trigger1 INSTEAD OF DELETE ON table1
FOR EACH ROW EXECUTE PROCEDURE setDeleteFlag ();
thx
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To: pgsql-sql@postgresql.org
Cc: berger1517@gmx.ch
Subject: Re: trigger : emulate "instead of" with before ?
In-Reply-To: <046801c331a2$0c483e70$a07ba8c0@wxp>
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