the column domain_id is the primary key, int(10) unsigned autoincrement here is a query run in the MySQL query browser select distinct(domain_id) from domain order by domain_id limit 10 1 2 3 4 5 6 7 8 9 10 which is the correct result, in the plugin I run the same query and get 4294967297 4294967298 4294967299 4294967300 4294967301 4294967302 4294967303 4294967304 4294967305 4294967306