let $file_format=`select @@innodb_file_format`;
let $file_per_table=`select @@innodb_file_per_table`;

SET GLOBAL innodb_file_format='Barracuda';
SET GLOBAL innodb_file_per_table=on;

set old_alter_table=0;

CREATE TABLE bug53591(a text charset utf8 not null)
ENGINE=InnoDB KEY_BLOCK_SIZE=1;
-- error 139
ALTER TABLE bug53591 ADD PRIMARY KEY(a(220));
SHOW WARNINGS;

DROP TABLE bug53591;

EVAL SET GLOBAL innodb_file_format=$file_format;
EVAL SET GLOBAL innodb_file_per_table=$file_per_table;