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create table t1 (a int not null, b int, primary key (a));
insert into t1 values (1,1);
--error 1364
create table if not exists t1 select 2;
select * from t1;
drop table t1;
create table t1 select 1,2,3;
--error 1364
create table if not exists t1 select 1,2;
--error 1364
create table if not exists t1 select 1;
select * from t1;
drop table t1;
create table t1 (a int not null primary key auto_increment, b int, c int, d int);
create table if not exists t1 select 1,2;
select * from t1;
drop table t1;
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