select tab.table_schema, tab.table_name from information_schema.tables tab left join information_schema.table_constraints tco on tab.table_schema = tco.table_schema and tab.table_name = tco.table_name and tco.constraint_type = 'PRIMARY KEY' where tab.table_type = 'BASE TABLE' and tab.table_schema not in ('pg_catalog', 'information_schema') and tco.constraint_name is null order by table_schema, table_name;
