SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function accurateCastOrDefault (children 1)
     ExpressionList (children 3)
      Literal Int64_-1
      Literal \'UInt64\'
      Function CAST (children 1)
       ExpressionList (children 2)
        Literal \'0\'
        Literal \'UInt64\'
