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

CREATE TABLE t(id INT NOT NULL, col1 INT, col2 INT NOT NULL, PRIMARY KEY(id, col2), UNIQUE KEY uk(col2)) ENGINE=XENGINE;

INSERT INTO t VALUES(1, 2, 2), (2, 4, 4);
SELECT * FROM t;
--replace_column 10 #
EXPLAIN SELECT col2 FROM t;
SELECT col2 FROM t;

SET DEBUG_SYNC= 'xengine.inplace_populate_indexes_done SIGNAL start_dml WAIT_FOR dml_done';
send ALTER TABLE t DROP COLUMN col1;

  connect (dml,localhost,root,,);
  --echo # Switch to dml connection
  connection dml;
  SET DEBUG_SYNC= 'now WAIT_FOR start_dml';
  UPDATE t SET col2=6 WHERE col2=4;
  #INSERT INTO t VALUES(2, 5, 4);
  SELECT * FROM t;
  --replace_column 10 #
  EXPLAIN SELECT col2 FROM t;
  SELECT col2 FROM t;
  SET DEBUG_SYNC= 'now SIGNAL dml_done';

connection default;
# receive the result of ALTER TABLE, expected modify pk successfully
reap;
CHECK TABLE t;
SHOW CREATE TABLE t;
SELECT * FROM t;
--replace_column 10 #
EXPLAIN SELECT col2 FROM t;
SELECT col2 FROM t;
DROP TABLE t;

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