#
# Bug #18734396	INNODB IN-PLACE ALTER FAILURES BLOCK FUTURE ALTERS
#
# Temporary tablename will be unique. This makes sure that future
# in-place ALTERs of the same table will not be blocked due to
# temporary tablename.
CREATE TABLE t1 (f1 INT NOT NULL, f2 INT NOT NULL) ENGINE=innodb;
SET debug_dbug='+d,innodb_alter_commit_crash_before_commit';
ALTER TABLE t1 ADD PRIMARY KEY (f2, f1);
ERROR HY000: Lost connection to MySQL server during query
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `f1` int(11) NOT NULL,
  `f2` int(11) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1
# Consecutive Alter table does not create same temporary file name
ALTER TABLE t1 ADD PRIMARY KEY (f2, f1);
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `f1` int(11) NOT NULL,
  `f2` int(11) NOT NULL,
  PRIMARY KEY (`f2`,`f1`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
drop table t1;