DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (a <INT_COLUMN>, b <CHAR_COLUMN>) ENGINE=<STORAGE_ENGINE> <CUSTOM_TABLE_OPTIONS> PACK_KEYS=1;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL,
  `b` char(8) DEFAULT NULL
) ENGINE=<STORAGE_ENGINE> DEFAULT CHARSET=latin1 PACK_KEYS=1
ALTER TABLE t1 PACK_KEYS=0;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL,
  `b` char(8) DEFAULT NULL
) ENGINE=<STORAGE_ENGINE> DEFAULT CHARSET=latin1 PACK_KEYS=0
DROP TABLE t1;