--source suite/xengine/include/have_xengine.inc
--source include/have_debug.inc

# after DDL finish unique check and before DDL commit changes
# unique check of all delte records is done during DML

--echo # Establish dml connection (user=root)
connect (dml,localhost,root,,);
connection default;

--echo ================================================================
--echo # case 1 add unique key
--echo ================================================================
--echo # case 1.1 duplicate record generated by updating in d3
--echo ================================================================
CREATE TABLE t1 (a INT PRIMARY KEY, b INT)ENGINE=XENGINE;
INSERT INTO t1 VALUES(1, 1);
INSERT INTO t1 VALUES(2, 2);

SET DEBUG_SYNC='xengine.inplace_create_sk_check_constraint_done SIGNAL start_dml WAIT_FOR dml_finish';
send ALTER TABLE t1 ADD UNIQUE INDEX t1_ub(b), ALGORITHM=INPLACE, LOCK=DEFAULT;

  --echo # Switch to dml connection
  connection dml;
  # wait the create sk ddl enter the inplace_create_sk_check_constraint_done point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  BEGIN;
  UPDATE t1 SET b=2 WHERE a=1;
  UPDATE t1 SET b=1 WHERE a=2;
  SELECT * FROM t1;
  COMMIT;
  # signal create sk ddl the key2 has been inserted
  SET DEBUG_SYNC='now SIGNAL dml_finish';

--echo # Switch to connection default
connection default;
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 1.2 duplicate record in base in d3
--echo ================================================================
CREATE TABLE t1 (a INT PRIMARY KEY, b INT)ENGINE=XENGINE;
INSERT INTO t1 VALUES(1, 1);

SET DEBUG_SYNC='xengine.inplace_create_sk_check_constraint_done SIGNAL start_dml WAIT_FOR dml_finish';
send ALTER TABLE t1 ADD UNIQUE INDEX t1_ub(b), ALGORITHM=INPLACE, LOCK=DEFAULT;

  --echo # Switch to dml connection
  connection dml;
  # wait the create sk ddl enter the inplace_create_sk_check_constraint_done point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  INSERT INTO t1 VALUES(3, 1);  # last_wb_status is NonExist
  # found conflict in base
  SELECT * FROM t1;
  # signal create sk ddl the key2 has been inserted
  SET DEBUG_SYNC='now SIGNAL dml_finish';

--echo # Switch to connection default
connection default;
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 1.3 duplicate record in a write batch in d3
--echo ================================================================
CREATE TABLE t1 (a INT PRIMARY KEY, b INT)ENGINE=XENGINE;
INSERT INTO t1 VALUES(1, 1);

SET DEBUG_SYNC='xengine.inplace_create_sk_check_constraint_done SIGNAL start_dml WAIT_FOR dml_finish';
send ALTER TABLE t1 ADD UNIQUE INDEX t1_ub(b), ALGORITHM=INPLACE, LOCK=DEFAULT;

  --echo # Switch to dml connection
  connection dml;
  # wait the create sk ddl enter the inplace_create_sk_check_constraint_done point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  BEGIN;
  DELETE FROM t1 WHERE b=1;
  INSERT INTO t1 VALUES(3, 1);  # last_wb_status is DEL
  INSERT INTO t1 VALUES(2, 1);  # last_wb_status is PUT <-- conflict
  COMMIT;
  SELECT * FROM t1;
  # signal create sk ddl the key2 has been inserted
  SET DEBUG_SYNC='now SIGNAL dml_finish';

--echo # Switch to connection default
connection default;
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 1.4 duplicate record in different write batch in d3
--echo ================================================================
CREATE TABLE t1 (a INT PRIMARY KEY, b INT)ENGINE=XENGINE;
INSERT INTO t1 VALUES(1, 1);

SET DEBUG_SYNC='xengine.inplace_create_sk_check_constraint_done SIGNAL start_dml WAIT_FOR dml_finish';
send ALTER TABLE t1 ADD UNIQUE INDEX t1_ub(b), ALGORITHM=INPLACE, LOCK=DEFAULT;

  --echo # Switch to dml connection
  connection dml;
  # wait the create sk ddl enter the inplace_create_sk_check_constraint_done point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  BEGIN;
  DELETE FROM t1 WHERE b=1;
  INSERT INTO t1 VALUES(3, 1);  # last_wb_status is DEL
  COMMIT;
  INSERT INTO t1 VALUES(2, 1);  # last_wb_status is NonExist
  # found conflict in delta
  SELECT * FROM t1;
  # signal create sk ddl the key2 has been inserted
  SET DEBUG_SYNC='now SIGNAL dml_finish';

--echo # Switch to connection default
connection default;
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 1.5 duplicate record in different write batch in d3
--echo ================================================================
CREATE TABLE t1 (a INT PRIMARY KEY, b CHAR(10))ENGINE=XENGINE;
INSERT INTO t1 VALUES(1, '222');

SET DEBUG_SYNC='xengine.inplace_create_sk_check_constraint_done SIGNAL start_dml WAIT_FOR dml_finish';
send ALTER TABLE t1 ADD UNIQUE INDEX t1_ub(b), ALGORITHM=INPLACE, LOCK=DEFAULT;

  --echo # Switch to dml connection
  connection dml;
  # wait the create sk ddl enter the inplace_create_sk_check_constraint_done point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  BEGIN;
  INSERT INTO t1 VALUES(2, '111'); # delta is empty, just check with L2
  INSERT INTO t1 VALUES(4, '11'); # change to empty base
  COMMIT;
  SELECT * FROM t1;
  # signal create sk ddl the key2 has been inserted
  SET DEBUG_SYNC='now SIGNAL dml_finish';

--echo # Switch to connection default
connection default;
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 1.6 duplicate record in different write batch in d3
--echo ================================================================
CREATE TABLE t1 (a INT PRIMARY KEY, b CHAR(10))ENGINE=XENGINE;
INSERT INTO t1 VALUES(1, '222');

SET DEBUG_SYNC='xengine.inplace_create_sk_check_constraint_done SIGNAL start_dml WAIT_FOR dml_finish';
send ALTER TABLE t1 ADD UNIQUE INDEX t1_ub(b), ALGORITHM=INPLACE, LOCK=DEFAULT;

  --echo # Switch to dml connection
  connection dml;
  # wait the create sk ddl enter the inplace_create_sk_check_constraint_done point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  INSERT INTO t1 VALUES(2, '11'); # delta is empty, just check with L2
  BEGIN;
  INSERT INTO t1 VALUES(3, '111'); # delta is empty, just check with L2
  INSERT INTO t1 VALUES(4, '11'); # change to non empty base
  COMMIT;
  SELECT * FROM t1;
  # signal create sk ddl the key2 has been inserted
  SET DEBUG_SYNC='now SIGNAL dml_finish';

--echo # Switch to connection default
connection default;
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 1.7 test match till end in same write batch is wrong
--echo ================================================================
CREATE TABLE t1 (a INT PRIMARY KEY, b CHAR(10) NOT NULL)ENGINE=XENGINE;
INSERT INTO t1 VALUES(1, '222');

SET DEBUG_SYNC='xengine.inplace_create_sk_check_constraint_done SIGNAL start_dml WAIT_FOR dml_finish';
send ALTER TABLE t1 ADD UNIQUE KEY(b), ALGORITHM=INPLACE, LOCK=DEFAULT;

  --echo # Switch to dml connection
  connection dml;
  # wait the add uk ddl enter the inplace_create_sk_check_constraint_done point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  INSERT INTO t1 VALUES(3, '11'); # delta is empty, just check with L2
  BEGIN;
  DELETE FROM t1 WHERE a=3;
  INSERT INTO t1 VALUES(2, '11'); # change to non empty base
  INSERT INTO t1 VALUES(4, '11'); # should be conflicted with previous record
  COMMIT;
  SELECT * FROM t1;
  # signal add uk ddl the key2 has been inserted
  SET DEBUG_SYNC='now SIGNAL dml_finish';

--echo # Switch to connection default
connection default;
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 2 modify PRIMARY key
--echo ================================================================
--echo # case 2.1 duplicate record generated by updating in d3
--echo ================================================================
CREATE TABLE t1 (a INT PRIMARY KEY, b INT NOT NULL)ENGINE=XENGINE;
INSERT INTO t1 VALUES(1, 1);
INSERT INTO t1 VALUES(2, 2);

SET DEBUG_SYNC='xengine.inplace_unique_check_constraint_done SIGNAL start_dml WAIT_FOR dml_finish';
send ALTER TABLE t1 DROP PRIMARY KEY, ADD PRIMARY KEY(b), ALGORITHM=INPLACE, LOCK=DEFAULT;

  --echo # Switch to dml connection
  connection dml;
  # wait the modify pk ddl enter the inplace_unique_check_constraint_done point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  BEGIN;
  UPDATE t1 SET b=2 WHERE a=1;
  UPDATE t1 SET b=1 WHERE a=2;
  SELECT * FROM t1;
  COMMIT;
  # signal modify pk ddl the key2 has been inserted
  SET DEBUG_SYNC='now SIGNAL dml_finish';

--echo # Switch to connection default
connection default;
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 2.2 duplicate record in base in d3
--echo ================================================================
CREATE TABLE t1 (a INT PRIMARY KEY, b INT NOT NULL)ENGINE=XENGINE;
INSERT INTO t1 VALUES(1, 1);

SET DEBUG_SYNC='xengine.inplace_unique_check_constraint_done SIGNAL start_dml WAIT_FOR dml_finish';
send ALTER TABLE t1 DROP PRIMARY KEY, ADD PRIMARY KEY(b), ALGORITHM=INPLACE, LOCK=DEFAULT;

  --echo # Switch to dml connection
  connection dml;
  # wait the modify pk ddl enter the inplace_unique_check_constraint_done point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  INSERT INTO t1 VALUES(3, 1);  # last_wb_status is NonExist
  # found conflict in base
  SELECT * FROM t1;
  # signal modify pk ddl the key2 has been inserted
  SET DEBUG_SYNC='now SIGNAL dml_finish';

--echo # Switch to connection default
connection default;
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 2.3 duplicate record in a write batch in d3
--echo ================================================================
CREATE TABLE t1 (a INT PRIMARY KEY, b INT NOT NULL)ENGINE=XENGINE;
INSERT INTO t1 VALUES(1, 1);

SET DEBUG_SYNC='xengine.inplace_unique_check_constraint_done SIGNAL start_dml WAIT_FOR dml_finish';
send ALTER TABLE t1 DROP PRIMARY KEY, ADD PRIMARY KEY(b), ALGORITHM=INPLACE, LOCK=DEFAULT;

  --echo # Switch to dml connection
  connection dml;
  # wait the modify pk ddl enter the inplace_unique_check_constraint_done point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  BEGIN;
  DELETE FROM t1 WHERE b=1;
  INSERT INTO t1 VALUES(3, 1);  # last_wb_status is DEL
  INSERT INTO t1 VALUES(2, 1);  # last_wb_status is PUT <-- conflict
  COMMIT;
  SELECT * FROM t1;
  # signal modify pk ddl the key2 has been inserted
  SET DEBUG_SYNC='now SIGNAL dml_finish';

--echo # Switch to connection default
connection default;
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 2.4 duplicate record in different write batch in d3
--echo ================================================================
CREATE TABLE t1 (a INT PRIMARY KEY, b INT NOT NULL)ENGINE=XENGINE;
INSERT INTO t1 VALUES(1, 1);

SET DEBUG_SYNC='xengine.inplace_unique_check_constraint_done SIGNAL start_dml WAIT_FOR dml_finish';
send ALTER TABLE t1 DROP PRIMARY KEY, ADD PRIMARY KEY(b), ALGORITHM=INPLACE, LOCK=DEFAULT;

  --echo # Switch to dml connection
  connection dml;
  # wait the modify pk ddl enter the inplace_unique_check_constraint_done point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  BEGIN;
  DELETE FROM t1 WHERE b=1;
  INSERT INTO t1 VALUES(3, 1);  # last_wb_status is DEL
  COMMIT;
  INSERT INTO t1 VALUES(2, 1);  # last_wb_status is NonExist
  # found conflict in delta
  SELECT * FROM t1;
  # signal modify pk ddl the key2 has been inserted
  SET DEBUG_SYNC='now SIGNAL dml_finish';

--echo # Switch to connection default
connection default;
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 2.5 duplicate record in different write batch in d3
--echo ================================================================
CREATE TABLE t1 (a INT PRIMARY KEY, b CHAR(10) NOT NULL)ENGINE=XENGINE;
INSERT INTO t1 VALUES(1, '222');

SET DEBUG_SYNC='xengine.inplace_unique_check_constraint_done SIGNAL start_dml WAIT_FOR dml_finish';
send ALTER TABLE t1 DROP PRIMARY KEY, ADD PRIMARY KEY(b), ALGORITHM=INPLACE, LOCK=DEFAULT;

  --echo # Switch to dml connection
  connection dml;
  # wait the modify pk ddl enter the inplace_unique_check_constraint_done point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  BEGIN;
  INSERT INTO t1 VALUES(2, '111'); # delta is empty, just check with L2
  INSERT INTO t1 VALUES(4, '11'); # change to empty base
  COMMIT;
  SELECT * FROM t1;
  # signal modify pk ddl the key2 has been inserted
  SET DEBUG_SYNC='now SIGNAL dml_finish';

--echo # Switch to connection default
connection default;
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 2.6 duplicate record in different write batch in d3
--echo ================================================================
CREATE TABLE t1 (a INT PRIMARY KEY, b CHAR(10) NOT NULL)ENGINE=XENGINE;
INSERT INTO t1 VALUES(1, '222');

SET DEBUG_SYNC='xengine.inplace_unique_check_constraint_done SIGNAL start_dml WAIT_FOR dml_finish';
send ALTER TABLE t1 DROP PRIMARY KEY, ADD PRIMARY KEY(b), ALGORITHM=INPLACE, LOCK=DEFAULT;

  --echo # Switch to dml connection
  connection dml;
  # wait the modify pk ddl enter the inplace_unique_check_constraint_done point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  INSERT INTO t1 VALUES(2, '11'); # delta is empty, just check with L2
  BEGIN;
  INSERT INTO t1 VALUES(3, '111'); # delta is empty, just check with L2
  INSERT INTO t1 VALUES(4, '11'); # change to non empty base
  COMMIT;
  SELECT * FROM t1;
  # signal modify pk ddl the key2 has been inserted
  SET DEBUG_SYNC='now SIGNAL dml_finish';

--echo # Switch to connection default
connection default;
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 2.7 test match till end in same write batch is wrong
--echo ================================================================
CREATE TABLE t1 (a INT PRIMARY KEY, b CHAR(10) NOT NULL)ENGINE=XENGINE;
INSERT INTO t1 VALUES(1, '222');

SET DEBUG_SYNC='xengine.inplace_unique_check_constraint_done SIGNAL start_dml WAIT_FOR dml_finish';
send ALTER TABLE t1 DROP PRIMARY KEY, ADD PRIMARY KEY(b), ALGORITHM=INPLACE, LOCK=DEFAULT;

  --echo # Switch to dml connection
  connection dml;
  # wait the add pk ddl enter the inplace_unique_check_constraint_done point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  INSERT INTO t1 VALUES(3, '11'); # delta is empty, just check with L2
  BEGIN;
  DELETE FROM t1 WHERE a=3;
  INSERT INTO t1 VALUES(2, '11'); # change to non empty base
  INSERT INTO t1 VALUES(4, '11'); # should be conflicted with previous record
  COMMIT;
  SELECT * FROM t1;
  # signal add pk ddl the key2 has been inserted
  SET DEBUG_SYNC='now SIGNAL dml_finish';

--echo # Switch to connection default
connection default;
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 3 add PRIMARY key
--echo ================================================================
--echo # case 3.1 duplicate record generated by updating in d3
--echo ================================================================
CREATE TABLE t1 (a INT, b INT NOT NULL)ENGINE=XENGINE;
INSERT INTO t1 VALUES(1, 1);
INSERT INTO t1 VALUES(2, 2);

SET DEBUG_SYNC='xengine.inplace_unique_check_constraint_done SIGNAL start_dml WAIT_FOR dml_finish';
send ALTER TABLE t1 ADD PRIMARY KEY(b), ALGORITHM=INPLACE, LOCK=DEFAULT;

  --echo # Switch to dml connection
  connection dml;
  # wait the add pk ddl enter the inplace_unique_check_constraint_done point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  BEGIN;
  UPDATE t1 SET b=2 WHERE a=1;
  UPDATE t1 SET b=1 WHERE a=2;
  SELECT * FROM t1;
  COMMIT;
  # signal add pk ddl the key2 has been inserted
  SET DEBUG_SYNC='now SIGNAL dml_finish';

--echo # Switch to connection default
connection default;
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 3.2 duplicate record in base in d3
--echo ================================================================
CREATE TABLE t1 (a INT, b INT NOT NULL)ENGINE=XENGINE;
INSERT INTO t1 VALUES(1, 1);

SET DEBUG_SYNC='xengine.inplace_unique_check_constraint_done SIGNAL start_dml WAIT_FOR dml_finish';
send ALTER TABLE t1 ADD PRIMARY KEY(b), ALGORITHM=INPLACE, LOCK=DEFAULT;

  --echo # Switch to dml connection
  connection dml;
  # wait the add pk ddl enter the inplace_unique_check_constraint_done point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  INSERT INTO t1 VALUES(3, 1);  # last_wb_status is NonExist
  # found conflict in base
  SELECT * FROM t1;
  # signal add pk ddl the key2 has been inserted
  SET DEBUG_SYNC='now SIGNAL dml_finish';

--echo # Switch to connection default
connection default;
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 3.3 duplicate record in a write batch in d3
--echo ================================================================
CREATE TABLE t1 (a INT, b INT NOT NULL)ENGINE=XENGINE;
INSERT INTO t1 VALUES(1, 1);

SET DEBUG_SYNC='xengine.inplace_unique_check_constraint_done SIGNAL start_dml WAIT_FOR dml_finish';
send ALTER TABLE t1 ADD PRIMARY KEY(b), ALGORITHM=INPLACE, LOCK=DEFAULT;

  --echo # Switch to dml connection
  connection dml;
  # wait the add pk ddl enter the inplace_unique_check_constraint_done point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  BEGIN;
  DELETE FROM t1 WHERE b=1;
  INSERT INTO t1 VALUES(3, 1);  # last_wb_status is DEL
  INSERT INTO t1 VALUES(2, 1);  # last_wb_status is PUT <-- conflict
  COMMIT;
  SELECT * FROM t1;
  # signal add pk ddl the key2 has been inserted
  SET DEBUG_SYNC='now SIGNAL dml_finish';

--echo # Switch to connection default
connection default;
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 3.4 duplicate record in different write batch in d3
--echo ================================================================
CREATE TABLE t1 (a INT, b INT NOT NULL)ENGINE=XENGINE;
INSERT INTO t1 VALUES(1, 1);

SET DEBUG_SYNC='xengine.inplace_unique_check_constraint_done SIGNAL start_dml WAIT_FOR dml_finish';
send ALTER TABLE t1 ADD PRIMARY KEY(b), ALGORITHM=INPLACE, LOCK=DEFAULT;

  --echo # Switch to dml connection
  connection dml;
  # wait the add pk ddl enter the inplace_unique_check_constraint_done point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  BEGIN;
  DELETE FROM t1 WHERE b=1;
  INSERT INTO t1 VALUES(3, 1);  # last_wb_status is DEL
  COMMIT;
  INSERT INTO t1 VALUES(2, 1);  # last_wb_status is NonExist
  # found conflict in delta
  SELECT * FROM t1;
  # signal add pk ddl the key2 has been inserted
  SET DEBUG_SYNC='now SIGNAL dml_finish';

--echo # Switch to connection default
connection default;
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 3.5 duplicate record in different write batch in d3
--echo ================================================================
CREATE TABLE t1 (a INT, b CHAR(10) NOT NULL)ENGINE=XENGINE;
INSERT INTO t1 VALUES(1, '222');

SET DEBUG_SYNC='xengine.inplace_unique_check_constraint_done SIGNAL start_dml WAIT_FOR dml_finish';
send ALTER TABLE t1 ADD PRIMARY KEY(b), ALGORITHM=INPLACE, LOCK=DEFAULT;

  --echo # Switch to dml connection
  connection dml;
  # wait the add pk ddl enter the inplace_unique_check_constraint_done point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  BEGIN;
  INSERT INTO t1 VALUES(2, '111'); # delta is empty, just check with L2
  INSERT INTO t1 VALUES(4, '11'); # change to empty base
  COMMIT;
  SELECT * FROM t1;
  # signal add pk ddl the key2 has been inserted
  SET DEBUG_SYNC='now SIGNAL dml_finish';

--echo # Switch to connection default
connection default;
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 3.6 duplicate record in different write batch in d3
--echo ================================================================
CREATE TABLE t1 (a INT, b CHAR(10) NOT NULL)ENGINE=XENGINE;
INSERT INTO t1 VALUES(1, '222');

SET DEBUG_SYNC='xengine.inplace_unique_check_constraint_done SIGNAL start_dml WAIT_FOR dml_finish';
send ALTER TABLE t1 ADD PRIMARY KEY(b), ALGORITHM=INPLACE, LOCK=DEFAULT;

  --echo # Switch to dml connection
  connection dml;
  # wait the add pk ddl enter the inplace_unique_check_constraint_done point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  INSERT INTO t1 VALUES(2, '11'); # delta is empty, just check with L2
  BEGIN;
  INSERT INTO t1 VALUES(3, '111'); # delta is empty, just check with L2
  INSERT INTO t1 VALUES(4, '11'); # change to non empty base
  COMMIT;
  SELECT * FROM t1;
  # signal add pk ddl the key2 has been inserted
  SET DEBUG_SYNC='now SIGNAL dml_finish';

--echo # Switch to connection default
connection default;
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

DROP TABLE t1;

--source suite/xengine/include/check_xengine_log_error.inc