SET NAMES utf8;
CREATE TABLE ① (
c1 INT PRIMARY KEY, c2 INT DEFAULT 1, ct TEXT, INDEX(c2))
ENGINE = InnoDB;
CREATE TABLE t1ć (c1 INT PRIMARY KEY, c2 INT, INDEX(c2),
CONSTRAINT t1c2 FOREIGN KEY (c2) REFERENCES ①(c2))
ENGINE=InnoDB;
INSERT INTO ① SET c1 = 1;
SET @saved_debug_dbug = @@SESSION.debug_dbug;
SET DEBUG_DBUG = '+d,ib_drop_foreign_error';
ALTER TABLE t1ć DROP FOREIGN KEY t1c2, RENAME TO ②;
ERROR HY000: The table 't1ć' is full
SET DEBUG_DBUG = @saved_debug_dbug;
SET DEBUG_DBUG = '+d,ib_rename_column_error';
ALTER TABLE ① CHANGE c2 š INT;
ERROR HY000: The table '①' is full
SET DEBUG_DBUG = @saved_debug_dbug;
SHOW CREATE TABLE t1ć;
Table	Create Table
t1ć	CREATE TABLE `t1ć` (
  `c1` int(11) NOT NULL,
  `c2` int(11) DEFAULT NULL,
  PRIMARY KEY (`c1`),
  KEY `c2` (`c2`),
  CONSTRAINT `t1c2` FOREIGN KEY (`c2`) REFERENCES `①` (`c2`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
DROP TABLE t1ć, ①;
#
# Bug #21364096  THE BOGUS DUPLICATE KEY ERROR IN ONLINE DDL
#                WITH INCORRECT KEY NAME
create table t1 (id int auto_increment primary key, a int, unique key uk(a))
engine = innodb;
insert into t1 select 1, 1;
insert into t1 select 2, 2;
SET DEBUG_SYNC = 'row_log_table_apply1_before SIGNAL s1 WAIT_FOR s2';
alter table t1 force, add b int, ALGORITHM=inplace;
/* connection con1 */
connect  con1,localhost,root,,;
SET DEBUG_SYNC = 'now WAIT_FOR s1';
insert into t1 select NULL, 1;
ERROR 23000: Duplicate entry '1' for key 'uk'
SET DEBUG_SYNC = 'now SIGNAL s2';
/* connection default */
connection default;
/* reap */ alter table t1 force, add b int, ALGORITHM=inplace;
ERROR 23000: Duplicate entry '1' for key 'uk'
SET DEBUG_SYNC = 'row_log_table_apply1_before SIGNAL s1 WAIT_FOR s2';
alter table t1 force, add b int, ALGORITHM=inplace;;
/* connection con1 */
connection con1;
set DEBUG_SYNC = 'now WAIT_FOR s1';
update t1 set a=1 where id=2;
ERROR 23000: Duplicate entry '1' for key 'uk'
SET DEBUG_SYNC = 'now SIGNAL s2';
disconnect con1;
/* connection default */
connection default;
/* reap */ alter table t1 force, add b int, ALGORITHM=inplace;
ERROR 23000: Duplicate entry '1' for key 'uk'
SET DEBUG_SYNC = 'RESET';
drop table t1;