カラム名のみ取得するとき
SELECT attname FROM pg_attribute as a INNER JOIN pg_class as c ON c.oid = a.attrelid WHERE a.attnum > 0 AND c.relname='t11_voice' ORDER BY a.attnum
SELECT attname FROM pg_attribute as a INNER JOIN pg_class as c ON c.oid = a.attrelid WHERE a.attnum > 0 AND c.relname='t11_voice' ORDER BY a.attnum