SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 3)
    Literal \'constants:\'
    Function array (children 1)
     ExpressionList (children 3)
      Function array (children 1)
       ExpressionList
      Literal Array_[\'\']
      Literal Array_[\'\', \'a\']
    Function byteSize (children 1)
     ExpressionList (children 1)
      Function array (children 1)
       ExpressionList (children 3)
        Function array (children 1)
         ExpressionList
        Literal Array_[\'\']
        Literal Array_[\'\', \'a\']
