polardbxengine/mysql-test/suite/xengine/t/online_ddl_bug23523336.test

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

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

--echo ================================================================
--echo # case 1 delete record before inserting conflict record
--echo ================================================================
--echo # case 1.1 add unique key
--echo ================================================================
--echo # case 1.1.1 (t0, t1)
--echo ================================================================
CREATE TABLE t1 (a INT PRIMARY KEY, b INT)ENGINE=XENGINE;
INSERT INTO t1 VALUES(1, 3);

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

  --echo # Switch to connection dml
  connection dml;
  # wait the create sk ddl enter the inplace_create_sk_scan_base_begin point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  DELETE FROM t1 WHERE b=3;
  INSERT INTO t1 VALUES(4,3);
  # 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;

--error 1062
INSERT INTO t1 VALUES(3, 3);

SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 1.1.2 (t1, t2)
--echo ================================================================
CREATE TABLE t1 (a INT PRIMARY KEY, b INT)ENGINE=XENGINE;
INSERT INTO t1 VALUES(1, 3);

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

  --echo # Switch to connection dml
  connection dml;
  # wait the create sk ddl enter the inplace_create_sk_check_constraint_begin point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  DELETE FROM t1 WHERE b=3;
  INSERT INTO t1 VALUES(4,3);
  # 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;

--error 1062
INSERT INTO t1 VALUES(3, 3);

SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 1.1.3 (t2, -)
--echo ================================================================
CREATE TABLE t1 (a INT PRIMARY KEY, b INT)ENGINE=XENGINE;
INSERT INTO t1 VALUES(1, 3);

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 connection dml
  connection dml;
  # wait the create sk ddl enter the inplace_create_sk_check_constraint_done point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  DELETE FROM t1 WHERE b=3;
  INSERT INTO t1 VALUES(4,3);
  # 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;

--error 1062
INSERT INTO t1 VALUES(3, 3);

SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 1.2 modify primary key
--echo ================================================================
--echo # case 1.2.1 (t0, t1)
--echo ================================================================
CREATE TABLE t1 (a INT PRIMARY KEY, b INT NOT NULL)ENGINE=XENGINE;
INSERT INTO t1 VALUES(1, 3);

SET DEBUG_SYNC='xengine.inplace_copy_ddl_scan_base_begin 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 connection dml
  connection dml;
  # wait the modify pk ddl enter the inplace_copy_ddl_scan_base_begin point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  DELETE FROM t1 WHERE b=3;
  INSERT INTO t1 VALUES(4,3);
  # 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;

--error 1062
INSERT INTO t1 VALUES(3, 3);

SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 1.2.2 (t1, t2)
--echo ================================================================
CREATE TABLE t1 (a INT PRIMARY KEY, b INT NOT NULL)ENGINE=XENGINE;
INSERT INTO t1 VALUES(1, 3);

SET DEBUG_SYNC='xengine.inplace_unique_check_constraint_begin 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 connection dml
  connection dml;
  # wait the modify pk ddl enter the inplace_unique_check_constraint_begin point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  DELETE FROM t1 WHERE b=3;
  INSERT INTO t1 VALUES(4,3);
  # 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;

--error 1062
INSERT INTO t1 VALUES(3, 3);

SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 1.2.3 (t2, -)
--echo ================================================================
CREATE TABLE t1 (a INT PRIMARY KEY, b INT NOT NULL)ENGINE=XENGINE;
INSERT INTO t1 VALUES(1, 3);

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 connection dml
  connection dml;
  # wait the modify pk ddl enter the inplace_unique_check_constraint_done point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  DELETE FROM t1 WHERE b=3;
  INSERT INTO t1 VALUES(4,3);
  # 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;

--error 1062
INSERT INTO t1 VALUES(3, 3);

SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 1.3 add primary key
--echo ================================================================
--echo # case 1.3.1 (t0, t1)
--echo ================================================================
CREATE TABLE t1 (a INT, b INT NOT NULL)ENGINE=XENGINE;
INSERT INTO t1 VALUES(1, 3);

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

  --echo # Switch to connection dml
  connection dml;
  # wait the add pk ddl enter the inplace_copy_ddl_scan_base_begin point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  DELETE FROM t1 WHERE b=3;
  INSERT INTO t1 VALUES(4,3);
  # 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;

--error 1062
INSERT INTO t1 VALUES(3, 3);

SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 1.3.2 (t1, t2)
--echo ================================================================
CREATE TABLE t1 (a INT, b INT NOT NULL)ENGINE=XENGINE;
INSERT INTO t1 VALUES(1, 3);

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

  --echo # Switch to connection dml
  connection dml;
  # wait the add pk ddl enter the inplace_unique_check_constraint_begin point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  DELETE FROM t1 WHERE b=3;
  INSERT INTO t1 VALUES(4,3);
  # 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;

--error 1062
INSERT INTO t1 VALUES(3, 3);

SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 1.3.3 (t2, -)
--echo ================================================================
CREATE TABLE t1 (a INT, b INT NOT NULL)ENGINE=XENGINE;
INSERT INTO t1 VALUES(1, 3);

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 connection dml
  connection dml;
  # wait the add pk ddl enter the inplace_unique_check_constraint_done point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  DELETE FROM t1 WHERE b=3;
  INSERT INTO t1 VALUES(4,3);
  # 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;

--error 1062
INSERT INTO t1 VALUES(3, 3);

SELECT * FROM t1;

DROP TABLE t1;

# copied from add_unique_index_online.test
--echo ================================================================
--echo # case 2 delete record after inserting conflict record
--echo ================================================================
--echo # case 2.1 add unique key
--echo ================================================================
--echo # case 2.1.1 (t0, t1)
--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_scan_base_begin 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_scan_base_begin point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  INSERT INTO t1 VALUES(6,1);
  DELETE FROM t1 WHERE a = 6;
  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;
# receive the result of alter table, expected create index fail
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

INSERT INTO t1 VALUES(3, 1);

DROP TABLE t1;

--echo ================================================================
--echo # case 2.1.2 (t1, t2)
--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_begin 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_begin point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  INSERT INTO t1 VALUES(6,1);
  DELETE FROM t1 WHERE a = 6;
  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;
# receive the result of alter table, expected create index fail
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

INSERT INTO t1 VALUES(3, 1);

DROP TABLE t1;

--echo ================================================================
--echo # case 2.1.3 (t2, -)
--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(6,1);
  DELETE FROM t1 WHERE a = 6;
  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;
# receive the result of alter table, expected create index fail
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

INSERT INTO t1 VALUES(3, 1);

DROP TABLE t1;

--echo ================================================================
--echo # case 2.2 modify primary key
--echo ================================================================
--echo # case 2.2.1 (t0, t1)
--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_copy_ddl_scan_base_begin 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_copy_ddl_scan_base_begin point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  INSERT INTO t1 VALUES(6,1);
  DELETE FROM t1 WHERE a = 6;
  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;
# receive the result of alter table, expected create index fail
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

INSERT INTO t1 VALUES(3, 1);

DROP TABLE t1;

--echo ================================================================
--echo # case 2.2.2 (t1, t2)
--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_begin 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_begin point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  INSERT INTO t1 VALUES(6,1);
  DELETE FROM t1 WHERE a = 6;
  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;
# receive the result of alter table, expected create index fail
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

INSERT INTO t1 VALUES(3, 1);

DROP TABLE t1;

--echo ================================================================
--echo # case 2.2.3 (t2, -)
--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(6,1);
  DELETE FROM t1 WHERE a = 6;
  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;
# receive the result of alter table, expected create index fail
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

INSERT INTO t1 VALUES(3, 1);

DROP TABLE t1;

--echo ================================================================
--echo # case 2.3 add primary key
--echo ================================================================
--echo # case 2.3.1 (t0, t1)
--echo ================================================================
CREATE TABLE t1 (a INT, b INT NOT NULL)ENGINE=XENGINE;
INSERT INTO t1 VALUES(1, 1);

SET DEBUG_SYNC='xengine.inplace_copy_ddl_scan_base_begin 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_copy_ddl_scan_base_begin point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  INSERT INTO t1 VALUES(6,1);
  DELETE FROM t1 WHERE a = 6;
  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;
# receive the result of alter table, expected create index fail
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

INSERT INTO t1 VALUES(3, 1);

DROP TABLE t1;

--echo ================================================================
--echo # case 2.3.2 (t1, t2)
--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_begin 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_begin point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  INSERT INTO t1 VALUES(6,1);
  DELETE FROM t1 WHERE a = 6;
  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;
# receive the result of alter table, expected create index fail
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

INSERT INTO t1 VALUES(3, 1);

DROP TABLE t1;

--echo ================================================================
--echo # case 2.3.3 (t2, -)
--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(6,1);
  DELETE FROM t1 WHERE a = 6;
  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;
# receive the result of alter table, expected create index fail
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

INSERT INTO t1 VALUES(3, 1);

DROP TABLE t1;

--echo ================================================================
--echo # case 3 delete record before inserting conflict record
--echo ================================================================
--echo # case 3.1 add unique key
--echo ================================================================
--echo # case 3.1.1 (t0, t1)
--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_scan_base_begin 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_scan_base_begin point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  DELETE FROM t1 WHERE b=1;
  INSERT INTO t1 VALUES(3,1);
  INSERT INTO t1 VALUES(2,1);
  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;
# receive the result of alter table, expected create index fail
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 3.1.1 (t1, t2)
--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_begin 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_begin point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  DELETE FROM t1 WHERE b=1;
  INSERT INTO t1 VALUES(3, 1);
  INSERT INTO t1 VALUES(2, 1);
  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;
# receive the result of alter table, expected create index fail
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 3.1.1 (t2, -)
--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';
  DELETE FROM t1 WHERE b=1;
  INSERT INTO t1 VALUES(3, 1);
  INSERT INTO t1 VALUES(2, 1);
  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;
# receive the result of alter table, expected create index fail
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 3.2 modify primary key
--echo ================================================================
--echo # case 3.2.1 (t0, t1)
--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_copy_ddl_scan_base_begin 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_copy_ddl_scan_base_begin point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  DELETE FROM t1 WHERE b=1;
  INSERT INTO t1 VALUES(3,1);
  INSERT INTO t1 VALUES(2,1);
  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;
# receive the result of alter table, expected create index fail
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 3.2.2 (t1, t2)
--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_begin 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_begin point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  DELETE FROM t1 WHERE b=1;
  INSERT INTO t1 VALUES(3,1);
  INSERT INTO t1 VALUES(2,1);
  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;
# receive the result of alter table, expected create index fail
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 3.2.3 (t2, -)
--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';
  DELETE FROM t1 WHERE b=1;
  INSERT INTO t1 VALUES(3,1);
  INSERT INTO t1 VALUES(2,1);
  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;
# receive the result of alter table, expected create index fail
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 3.3 add primary key
--echo ================================================================
--echo # case 3.3.1 (t0, t1)
--echo ================================================================
CREATE TABLE t1 (a INT, b INT NOT NULL)ENGINE=XENGINE;
INSERT INTO t1 VALUES(1, 1);

SET DEBUG_SYNC='xengine.inplace_copy_ddl_scan_base_begin 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_copy_ddl_scan_base_begin point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  DELETE FROM t1 WHERE b=1;
  INSERT INTO t1 VALUES(3,1);
  INSERT INTO t1 VALUES(2,1);
  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;
# receive the result of alter table, expected create index fail
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 3.3.2 (t1, t2)
--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_begin 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_begin point
  SET DEBUG_SYNC='now WAIT_FOR start_dml';
  DELETE FROM t1 WHERE b=1;
  INSERT INTO t1 VALUES(3,1);
  INSERT INTO t1 VALUES(2,1);
  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;
# receive the result of alter table, expected create index fail
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================
--echo # case 3.3.3 (t2, -)
--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';
  DELETE FROM t1 WHERE b=1;
  INSERT INTO t1 VALUES(3,1);
  INSERT INTO t1 VALUES(2,1);
  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;
# receive the result of alter table, expected create index fail
--error 1062
reap;
CHECK TABLE t1;
SHOW CREATE TABLE t1;
SELECT * FROM t1;

DROP TABLE t1;

--echo ================================================================

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