SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 2)
    Function accurateCastOrDefault (children 1)
     ExpressionList (children 2)
      Literal UInt64_257
      Literal \'UInt8\'
    Function accurateCastOrDefault (children 1)
     ExpressionList (children 3)
      Literal UInt64_257
      Literal \'UInt8\'
      Literal UInt64_5
