Hi,
i think i found a bug in the pgsql interpreter. Platform is
Linux-2.4.0 on Intel, Postgres-Version is 7.1.1 .
The Problem:
I want to use a table name in a select statement within a function,
where the table name comes in as argument. It only works, if at all,
inside an execute statement. When redirecting the result into a
variable with INTO, the parser fails.
Example:
assume the following table:
CREATE TABLE bla (
key INT,
value INT
);
fill it with some stuff:
INSERT INTO bla VALUES(3, 4);
Now the function:
CREATE FUNCTION itest(varchar(40), INT)
returns INT
AS 'DECLARE res INT;
BEGIN
execute ''select INTO res value from '' || $1 || '' where key = '' || $2;
RETURN res;
END;'
LANGUAGE 'plpgsql';
Now calling
SELECT itest('bla', 3);
(what should work in my opinion) results in:
ERROR: parser: parse error at or near "INTO"
DEBUG: Last error occured while executing PL/pgSQL function itest
DEBUG: line 4 at execute statement
ERROR: parser: parse error at or near "INTO"
Removing the 'INTO res' makes things work.
Please check. It might be desirable to have the table name passed
as argument to a function for more reusable functions.
Regards and thanks, Postgres is Ultra-cool,
Albert Flügel
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Westermühlstraße 22 /O\
80469 München ^
Tel: 089-2010895
E-mail: af@muc.de
a.fluegel@science-computing.de
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