1CREATE TABLE IF NOT EXISTS `Group` (`group_id` INTEGER PRIMARY KEY AUTOINCREMENT, `group_name` VARCHAR(255), `creator_name` VARCHAR(255), `timestamp` BIGINT, `type` VARCHAR(32), `parent_group_id` INTEGER); 2CREATE TABLE IF NOT EXISTS `GroupUser` (`group_id` INTEGER, `user_name` VARCHAR(255), `is_staff` tinyint); 3CREATE UNIQUE INDEX IF NOT EXISTS groupid_username_indx on `GroupUser` (`group_id`, `user_name`); 4CREATE INDEX IF NOT EXISTS username_indx on `GroupUser` (`user_name`); 5CREATE TABLE IF NOT EXISTS GroupDNPair (group_id INTEGER, dn VARCHAR(255)); 6CREATE TABLE IF NOT EXISTS GroupStructure (group_id INTEGER PRIMARY KEY, path VARCHAR(1024)); 7 8