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From: Matthias Nagl <mnagl@web.de>
To: pgsql-sql@postgresql.org
Subject: problem with automatic altering of groups
Date: Wed, 20 Aug 2003 23:09:08 +0200
Message-ID: <200308202109.h7KL98Q30820@mailgate5.cinetic.de> (raw)

Hello, 
 
is ist possible to write a function that alters the group of a given user like the following should do in my 
opinion (I'd like to use it in a rule): 
 
CREATE FUNCTION set_group (text, integer) RETURNS text AS ' 
	ALTER GROUP userlevel1 DROP USER $1; ALTER GROUP userlevel2 DROP USER $1; ALTER GROUP 
userlevel3 DROP USER $1; 
	ALTER GROUP userlevel4 DROP USER $1; ALTER GROUP userlevel5 DROP USER $1; 
	CASE $2 
		WHEN 5 THEN 
			(ALTER GROUP userlevel5 ADD USER $1) 
		WHEN 4 THEN 
			(ALTER GROUP userlevel5 ADD USER $1; ALTER GROUP userlevel4 ADD USER $1;) 
		[...] 
	END; 
	SELECT ''; 
' LANGUAGE 'SQL'; 
 
I don't understand why this function ist refused by postgresql with an parse error at the first $1 as ist every 
other method I tryed to get postgres making an "alter group" with a variable. I'd be very happy if someone 
could help... 
 
yours 
 
Matthias Nagl 
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