--source include/have_innodb.inc
--source include/have_partition.inc
--source include/have_debug.inc
--source include/have_debug_sync.inc

CREATE TABLE t1(f1 INT, f2 INT, INDEX(f1))ENGINE=InnoDB STATS_PERSISTENT=0
                PARTITION BY LIST(f1) (
                        PARTITION p1 VALUES in (1, 2, 3),
                        PARTITION p2 VALUES in (4, 5, 6));
INSERT INTO t1 VALUES(1, 1), (1, 1), (6, 1);
connect(con1,localhost,root,,,);
START TRANSACTION WITH CONSISTENT SNAPSHOT;

connect(con2,localhost,root,,,);
SET DEBUG_SYNC="innodb_rollback_inplace_alter_table SIGNAL default_resume WAIT_FOR alter_resume";
send ALTER TABLE t1 ADD UNIQUE INDEX(f1);

connection default;
set DEBUG_SYNC="now WAIT_FOR default_resume";
SET DEBUG_SYNC="innodb_row_update_for_mysql_begin SIGNAL alter_resume WAIT_FOR alter_finish";
send DELETE FROM t1;

connection con2;
--error ER_DUP_ENTRY
reap;
SET DEBUG_SYNC="now SIGNAL alter_finish";

connection default;
reap;
connection con1;
commit;
connection default;
disconnect con1;
disconnect con2;
--source ../../innodb/include/wait_all_purged.inc
drop table t1;
SET DEBUG_SYNC=reset;