github.com/pingcap/tiflow@v0.0.0-20240520035814-5bf52d54e205/dm/tests/sequence_safe_mode/data/db2.increment.sql (about) 1 use sequence_safe_mode_test; 2 delete from t3 where name = 'Santa Sofía de la Piedad'; 3 alter table t2 add column age int after name, add column level int after name; 4 alter table t2 add index age(age); 5 alter table t2 add index level(level); 6 insert into t2 (uid, name, age) values (40002, 'Remedios Moscote', 100), (40003, 'Amaranta', 103); 7 insert into t3 (uid, name) values (30004, 'Aureliano José'), (30005, 'Santa Sofía de la Piedad'), (30006, '17 Aurelianos'); 8 alter table t3 add column age int after name, add column level int after name; 9 alter table t3 add index age(age); 10 alter table t3 add index level(level); 11 update t3 set age = 1;