SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 2)
    Function reinterpret (children 1)
     ExpressionList (children 2)
      Literal UInt64_0
      Literal \'Date\'
    Function reinterpret (children 1)
     ExpressionList (children 2)
      Literal \'\'
      Literal \'Date\'