On 07/02/11 22.15, Julia Jacobson wrote:
Dear PostgreSQL community,
Please consider the following minimal example:
CREATE TABLE example (row_id SERIAL, value TEXT);
INSERT INTO example(value) VALUES ('val1');
INSERT INTO example(value) VALUES ('val2');
INSERT INTO example(value) VALUES ('val3');
CREATE OR REPLACE FUNCTION foo()
RETURNS TEXT
AS
$$
DECLARE
a TEXT;
b TEXT[];
i INT;
BEGIN
FOR i in 1..3 LOOP
SELECT INTO a value FROM example WHERE row_id=i; -- This works
b[i] := a; -- perfectly!
-- SELECT INTO b[i] value FROM example WHERE row_id=i; Doesn't work!
END LOOP;
RETURN b[2];
END;
$$
LANGUAGE 'plpgsql';
this one seems work...
CREATE OR REPLACE FUNCTION foo()
RETURNS TEXT
AS
$$
DECLARE
b TEXT[];
i INT;
BEGIN
FOR i in 1..3 LOOP
b[i]:= value FROM example WHERE row_id=i;
END LOOP;
RETURN b[2];
END;
$$
LANGUAGE 'plpgsql';
Edoardo
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