autoid bigint unsigned primary key auto_increment, MemberId bigint unsigned, referrer_id bigint unsigned, rank1 ENUM("0","1","2") DEFAULT "0" comment "1 when member acheives this rank; 2 when temporarily does not qualify", rank1_traditional BIGINT UNSIGNED DEFAULT "0", ranked1 BIGINT UNSIGNED COMMENT "Member this person is coded to", rank2 ENUM("0","1","2") DEFAULT "0" comment "1 when member acheives this rank; 2 when temporarily does not qualify", rank2_traditional BIGINT UNSIGNED DEFAULT "0", ranked2 BIGINT UNSIGNED COMMENT "Member this person is coded to", #...Other non related fields such as name and registration info...