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create table t1 (d int primary key); create table t2 (d int primary key); insert into t1 values ("100000000"); insert into t2 values (2); create table t3 (d int primary key) as select t2.d from t2 union select t1.d from t1; select * from t3; d 2 100000000 show create table t3; Table Create Table t3 CREATE TABLE `t3` ( `d` INT NOT NULL, PRIMARY KEY (`d`) ) ENGINE=DEFAULT COLLATE = utf8_general_ci drop table t1, t2, t3; |