github.com/pingcap/br@v5.3.0-alpha.0.20220125034240-ec59c7b6ce30+incompatible/tests/lightning_fail_fast/data/fail_fast.tb-schema.sql

CREATE TABLE `tb` (id int, s1 varchar(16), s2 varchar(16), primary key (id), unique key uq (s1, s2));