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drop table if exists t1,t2;
create table t1(a int, unique(a));
insert into t1 values(2);
create table t2(a int);
insert into t2 values(1),(2);
reset master;
insert into t1 select * from t2;
ERROR 23000: Duplicate entry '2' for key 'a'
show binlog events from <binlog_start>;
Log_name Pos Event_type Server_id End_log_pos Info
master-bin.000001 # Query # # use `test`; insert into t1 select * from t2
select * from t1;
a
1
2
drop table t1, t2;
create table t1(a int);
insert into t1 values(1),(1);
reset master;
create table t2(unique(a)) select a from t1;
ERROR 23000: Duplicate entry '1' for key 'a'
show binlog events from <binlog_start>;
Log_name Pos Event_type Server_id End_log_pos Info
drop table t1;
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