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CREATE TABLE t1 (id INT);
DELIMITER $$;
CREATE PROCEDURE proc1 (OUT cnt INT) COMMENT 'comment1' BEGIN SELECT COUNT(*) INTO cnt FROM t1; END$$
DELIMITER ;$$
CALL proc1(@cnt);
SELECT @cnt;
INSERT INTO t1 VALUES (1), (2), (3);
CALL proc1(@cnt);
SELECT @cnt;
DELIMITER $$;
--error ER_SP_ALREADY_EXISTS
CREATE PROCEDURE proc1 (OUT cnt INT) COMMENT 'comment2'
BEGIN SELECT COUNT(*) INTO cnt FROM t1; END$$
SELECT comment FROM mysql.proc WHERE name='proc1'$$
CREATE PROCEDURE IF NOT EXISTS proc1 (OUT cnt INT) COMMENT 'comment3'
BEGIN SELECT COUNT(*) INTO cnt FROM t1; END$$
SELECT comment FROM mysql.proc WHERE name='proc1'$$
--error ER_WRONG_USAGE
CREATE OR REPLACE PROCEDURE IF NOT EXISTS proc1 (OUT cnt INT) COMMENT 'comment4'
BEGIN SELECT COUNT(*) INTO cnt FROM t1; END$$
SELECT comment FROM mysql.proc WHERE name='proc1'$$
CREATE OR REPLACE PROCEDURE proc1 (OUT cnt INT) COMMENT 'comment5'
BEGIN SELECT COUNT(*) INTO cnt FROM t1; END$$
SELECT comment FROM mysql.proc WHERE name='proc1'$$
DELIMITER ;$$
DROP PROCEDURE proc1;
DELIMITER $$;
CREATE PROCEDURE IF NOT EXISTS proc1 (OUT cnt INT) BEGIN SELECT COUNT(*) INTO cnt FROM t1; END$$
DELIMITER ;$$
INSERT INTO t1 VALUES (1), (2), (3);
CALL proc1(@cnt);
SELECT @cnt;
DROP TABLE IF EXISTS t1;
DROP PROCEDURE IF EXISTS proc1;
DROP PROCEDURE IF EXISTS proc1;
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