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CREATE TABLE customer ( id int DEFAULT NULL, name varchar(255) DEFAULT NULL, address varchar(255) DEFAULT NULL, city varchar(255) DEFAULT NULL, state char(2) DEFAULT NULL, zip char(10) DEFAULT NULL ) ; INSERT INTO customer VALUES (1,2,3,4,5,6); DELIMITER ;; create function test2 (a int) returns int READS SQL DATA BEGIN insert into customer (id) values (a); return a; end;; DELIMITER ; SELECT test2(123); SELECT test2(src.id + 10000) FROM ( SELECT id FROM ( SELECT * FROM customer ) AS src ) AS src; SHOW WARNINGS; SELECT * FROM customer;

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