SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function arrayFilter (children 1)
     ExpressionList (children 2)
      Function lambda (children 1)
       ExpressionList (children 2)
        Function tuple (children 1)
         ExpressionList (children 1)
          Identifier x
        Function notEmpty (children 1)
         ExpressionList (children 1)
          Identifier x
      Function arrayJoin (children 1)
       ExpressionList (children 1)
        Literal Array_[Array_[\'\'], Array_[\'is_registred\'], Array_[\'registration_month\', \'user_login\', \'is_registred\'], Array_[\'is_registred\'], Array_[\'is_registred\'], Array_[\'\']]
