SQL QUERY: SELECT riik AS yhendlist, riik_id FROM riigid UNION SELECT teised_vormid, riik_id FROM riigid WHERE paral_trykk = 1 ORDER BY yhendlist ASC;ERROR: operator does not exist: character varying = integer LINE 2: ...ECT teised_vormid, riik_id FROM riigid WHERE paral_trykk = 1 ^ HINT: No operator matches the given name and argument types. You might need to add explicit type casts.