Changing user
Dear All,
I have a simple table
CREATE TABLE table1{
user name,
si numeric
};
Also I have function:
CREATE FUNCTION check1(numeric) RETURN text AS'
DECLARE
SI ALIAS AS $1;
username name;
BEGIN
username:=(SELECT user FROM table1 WHERE si=SI)
SET SESSION AUTHORIZATION username;
RETURN username;
END;
'LANGUAGE 'plpgsql';
However, when I call the function I get the error:
ERROR: syntax error at or near "$1" at character 28
CONTEXT: PL/pgSQL function "check1" line11 at SQL statement
If I comment out the "SET SESSION ..." the function works, i.e. it outputs a
valid username. I create and execute the function as a superuser.
Any suggestions?
Many thanks
Colin
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"C G" <csgcsg39@hotmail.com> writes:
SET SESSION AUTHORIZATION username;
ERROR: syntax error at or near "$1" at character 28
You'll need to use EXECUTE to do this. Utility statements in general
aren't prepared to deal with parameters.
regards, tom lane
Thanks for your help but I still have a small problem. I'm try to do as you
suggested and use prepare/execute but I'm doing something silly.
I'm using:
PREPARE my_prep1(name) AS SET SESSION AUTHORIZATION $1;
and get the error message:
ERROR: syntax error at or near "set" at character 27
I have tried many variations on this theme but have no luck. Suggestions?
Thanks
Colin
"C G" <csgcsg39@hotmail.com> writes:
SET SESSION AUTHORIZATION username;
ERROR: syntax error at or near "$1" at character 28You'll need to use EXECUTE to do this. Utility statements in general
aren't prepared to deal with parameters.regards, tom lane
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Import Notes
Resolved by subject fallback
On Tuesday 16 December 2003 10:12, C G wrote:
Thanks for your help but I still have a small problem. I'm try to do as you
suggested and use prepare/execute but I'm doing something silly.I'm using:
PREPARE my_prep1(name) AS SET SESSION AUTHORIZATION $1;
and get the error message:
ERROR: syntax error at or near "set" at character 27
You want EXECUTE. Something like:
DECLARE
set_qty text;
...
set_qry := ''SET SESSION AUTHORIZATION '' || $1;
EXECUTE set_qry;
--
Richard Huxton
Archonet Ltd