'Holds definitions for top-level custom menus (for example, Primary Links).', 'fields' => array( 'menu_name' => array( 'type' => 'varchar', 'length' => 32, 'not null' => TRUE, 'default' => '', 'description' => 'Primary Key: Unique key for menu. This is used as a block delta so length is 32.', ), 'title' => array( 'type' => 'varchar', 'length' => 255, 'not null' => TRUE, 'default' => '', 'description' => 'Menu title; displayed at top of block.', ), 'description' => array( 'type' => 'text', 'not null' => FALSE, 'description' => 'Menu description.', ), ), 'primary key' => array('menu_name'), ); return $schema; }