SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 2)
    Function mapPopulateSeries (alias res) (children 1)
     ExpressionList (children 1)
      Function map (children 1)
       ExpressionList (children 4)
        Literal \'1\'
        Literal UInt64_1
        Literal \'2\'
        Literal UInt64_1
    Function toTypeName (children 1)
     ExpressionList (children 1)
      Identifier res
