SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 2)
    Identifier x
    Function lengthUTF8 (alias y) (children 1)
     ExpressionList (children 1)
      Identifier x
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 1)
          ExpressionList (children 1)
           Function arrayJoin (alias x) (children 1)
            ExpressionList (children 1)
             Literal Array_[\'\', \'h\', \'hello\', \'hello hello hello\', \'п\', \'пр\', \'привет\', \'привет привет\', \'привет привет привет\', \'你好\', \'你好 你好\', \'你好你好你好\', \'你好你好你好你好\', \'你好 你好 你好 你好 你好\']
