github.com/pingcap/tiflow@v0.0.0-20240520035814-5bf52d54e205/dm/tests/sequence_safe_mode/data/db1.increment.sql (about) 1 use sequence_safe_mode_test; 2 insert into t1 (uid, name) values (10003, 'Buenos Aires'); 3 alter table t1 add column age int after name, add column level int after name; 4 alter table t1 add index age(age); 5 alter table t1 add index level(level); 6 insert into t1 (uid, name, age) values (10005, 'Buenos Aires', 200); 7 insert into t2 (uid, name) values (20005, 'Aureliano José'); 8 insert into t1 (uid, name, age) values (10006, 'Buenos Aires', 200); 9 alter table t2 add column age int after name, add column level int after name; 10 alter table t2 add index age(age); 11 alter table t2 add index level(level); 12 insert into t1 (uid, name, age) values (10007, 'Buenos Aires', 300); 13 insert into t2 (uid, name, age) values (20006, 'Colonel Aureliano Buendía', 301); 14 insert into t1 (uid, name, age) values (10008, 'Buenos Aires', 400); 15 insert into t2 (uid, name, age) values (20007, 'Colonel Aureliano Buendía', 401); 16 update t1 set age = 404 where uid = 10005;