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5f34513c2a
Part#2 (final): rewritting the code to pass the correct enum_sp_aggregate_type
to the sp_head constructor, so sp_head never changes its aggregation type
later on. The grammar has been simplified and defragmented.
This allowed to check aggregate specific instructions right after
a routine body has been scanned, by calling new LEX methods:
sp_body_finalize_{procedure|function|trigger|event}()
Moving some C++ code from *.yy to a few new helper methods in LEX.
171 lines
3.1 KiB
Plaintext
171 lines
3.1 KiB
Plaintext
SET sql_mode=ORACLE;
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delimiter |;
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--error ER_INVALID_AGGREGATE_FUNCTION
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create aggregate function f1(x INT) return INT AS
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begin
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insert into t1(sal) values (x);
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return x;
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end|
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--error ER_NOT_AGGREGATE_FUNCTION
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create function f1(x INT) return INT AS
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begin
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set x=5;
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fetch group next row;
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return x+1;
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end |
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DELIMITER ;|
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CREATE TABLE marks(stud_id INT, grade_count INT);
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INSERT INTO marks VALUES (1,6), (2,4), (3,7), (4,5), (5,8);
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SELECT * FROM marks;
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--echo # Using PL/SQL syntax: EXCEPTION WHEN NO_DATA_FOUND
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DELIMITER //;
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CREATE AGGREGATE FUNCTION IF NOT EXISTS aggregate_count(x INT) RETURN INT AS
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count_students INT DEFAULT 0;
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BEGIN
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LOOP
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FETCH GROUP NEXT ROW;
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IF x THEN
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count_students:= count_students + 1;
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END IF;
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END LOOP;
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EXCEPTION
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WHEN NO_DATA_FOUND THEN
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RETURN count_students;
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END aggregate_count //
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DELIMITER ;//
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SELECT aggregate_count(stud_id) FROM marks;
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DROP FUNCTION IF EXISTS aggregate_count;
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--echo # Using SQL/PSM systax: CONTINUE HANDLER
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DELIMITER //;
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CREATE AGGREGATE FUNCTION IF NOT EXISTS aggregate_count(x INT) RETURN INT AS
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count_students INT DEFAULT 0;
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CONTINUE HANDLER FOR NOT FOUND RETURN count_students;
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BEGIN
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LOOP
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FETCH GROUP NEXT ROW;
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IF x THEN
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SET count_students= count_students + 1;
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END IF;
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END LOOP;
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END //
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DELIMITER ;//
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SELECT aggregate_count(stud_id) FROM marks;
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DROP FUNCTION IF EXISTS aggregate_count;
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DROP TABLE marks;
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--echo #
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--echo # MDEV-18813 PROCEDURE and anonymous blocks silently ignore FETCH GROUP NEXT ROW
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--echo #
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DELIMITER $$;
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--error ER_NOT_AGGREGATE_FUNCTION
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CREATE PROCEDURE p1 AS
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BEGIN
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FETCH GROUP NEXT ROW;
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END;
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$$
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DELIMITER ;$$
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DELIMITER $$;
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--error ER_NOT_AGGREGATE_FUNCTION
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BEGIN NOT ATOMIC
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FETCH GROUP NEXT ROW;
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END;
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$$
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DELIMITER ;$$
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DELIMITER $$;
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--error ER_NOT_AGGREGATE_FUNCTION
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CREATE DEFINER=root@localhost FUNCTION f1 RETURN INT AS
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BEGIN
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FETCH GROUP NEXT ROW;
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RETURN 0;
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END;
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$$
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DELIMITER ;$$
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CREATE TABLE t1 (a INT);
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--error ER_NOT_AGGREGATE_FUNCTION
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CREATE TRIGGER tr1
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AFTER INSERT ON t1 FOR EACH ROW
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FETCH GROUP NEXT ROW;
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DROP TABLE t1;
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--error ER_NOT_AGGREGATE_FUNCTION
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CREATE EVENT ev1
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ON SCHEDULE EVERY 1 HOUR
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STARTS CURRENT_TIMESTAMP + INTERVAL 1 MONTH
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ENDS CURRENT_TIMESTAMP + INTERVAL 1 MONTH + INTERVAL 1 WEEK
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DO FETCH GROUP NEXT ROW;
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DELIMITER $$;
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CREATE PACKAGE pkg1 AS
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PROCEDURE p1;
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FUNCTION f1 RETURN INT;
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END;
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$$
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--error ER_NOT_AGGREGATE_FUNCTION
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CREATE PACKAGE BODY pkg1 AS
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PROCEDURE p1 AS
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BEGIN
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FETCH GROUP NEXT ROW; -- In a package procedure
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END;
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FUNCTION f1 RETURN INT AS
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BEGIN
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RETURN 0;
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END;
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END;
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$$
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--error ER_NOT_AGGREGATE_FUNCTION
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CREATE PACKAGE BODY pkg1 AS
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PROCEDURE p1 AS
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BEGIN
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NULL;
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END;
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FUNCTION f1 RETURN INT AS
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BEGIN
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FETCH GROUP NEXT ROW; -- In a package function
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RETURN 0;
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END;
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END;
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$$
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--error ER_NOT_AGGREGATE_FUNCTION
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CREATE PACKAGE BODY pkg1 AS
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PROCEDURE p1 AS
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BEGIN
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NULL;
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END;
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FUNCTION f1 RETURN INT AS
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BEGIN
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RETURN 0;
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END;
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BEGIN
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FETCH GROUP NEXT ROW; -- In a package executable section
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END;
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$$
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DELIMITER ;$$
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DROP PACKAGE pkg1;
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