github.com/pingcap/tiflow@v0.0.0-20240520035814-5bf52d54e205/dm/tests/sequence_safe_mode/data/db2.increment2.sql (about) 1 use sequence_safe_mode_test; 2 alter table t2 add column age2 int after age; 3 alter table t2 add index age2(age2); 4 insert into t2 (uid, name, age, age2) values (40004, 'Remedios Moscote', 100, 300), (40005, 'Amaranta', 103, 301); 5 insert into t3 (uid, name, age) values (30007, 'Aureliano José', 99), (30008, 'Santa Sofía de la Piedad', 999), (30009, '17 Aurelianos', 9999); 6 update t2 set age = age + 33 where uid = 40004; 7 update t3 set age = age + 44 where uid > 30006 and uid < 30010; 8 alter table t3 add column age2 int after age; 9 alter table t3 add index age2(age2); 10 update t3 set age2 = 100;