# RQG grammar (bug.yy):

query:
	handler_open_close |
	handler_read ;

thread1:
	UPDATE IGNORE _table SET _field = value where ;

thread2: 
	ALTER TABLE _table ADD COLUMN filler VARCHAR(255) DEFAULT ' filler ' |
	ALTER TABLE _table DROP COLUMN filler ;

handler_open_close:
	HANDLER alias1 CLOSE ; HANDLER _table OPEN AS alias1 ;

handler_read:
	HANDLER alias1 READ `PRIMARY` index_op where ;

comp_op:
	= | <= | >= | < | > ;

index_op:
	FIRST | NEXT | PREV | LAST ;

value:
	_digit | _tinyint_unsigned | _varchar(1) ;

where:
	| WHERE _field comp_op value ;

# End of RQG grammar

#########################

# RQG data template (bug.zz):

$tables = {
        rows => [1000],
	engines => [ 'InnoDB' ]
};

$fields = {
        types => [ 'int', 'char(32)' ],
        indexes => [ 'key', 'unique' ],
        null => [undef, 'not null'],
};

$data = {
        numbers => [ 'digit', 'null', undef , 'tinyint_unsigned' ],
        strings => [ 'letter', 'english', 'varchar(3)' ]
}

# End of RQG data template

##############################

RQG command line:

perl runall.pl --grammar=bug.yy --gendata=bug.zz --basedir=mysql-5.6 --queries=100K --duration=600 --threads=3 --mysqld=--innodb-lock-wait-timeout=1 --mysqld=--lock-wait-timeout=1 


# It fails within a minute after start for me, 
# but if it doesn't for you, try to increase the number of threads