问题 备份db 不能导入本地mysql

CREATE TABLE jos_core_acl_aro(
aro_id int( 11 ) NOT NULL AUTO_INCREMENT ,
section_value varchar( 240 ) DEFAULT '0' NOT NULL ,
value varchar( 240 ) NOT NULL ,
order_value int( 11 ) DEFAULT '0' NOT NULL ,
`name` varchar( 255 ) NOT NULL ,
hidden int( 11 ) DEFAULT '0' NOT NULL ,
PRIMARY KEY ( aro_id ) ,
UNIQUE jos_gacl_section_value_value_aro( section_value, value ) ,
KEY jos_gacl_hidden_aro( hidden )
);
 
MySQL said: Documentation
#1071 - Specified key was too long; max key length is 1000 bytes