The configuration parameter
innodb_file_format controls
whether such statements as CREATE
TABLE and ALTER TABLE
can be used to create tables that depend on support for the
“Barracuda” file format.
In MySQL 5.5.5 and higher, the default value is “Barracuda”.
The file format is a dynamic, global parameter that can be
specified in the MySQL option file (my.cnf or
my.ini) or changed with the SET
GLOBAL command.