SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function subtractNanoseconds (children 1)
     ExpressionList (children 2)
      Function toDateTime64 (children 1)
       ExpressionList (children 3)
        Literal \'2023-01-01 00:00:00.0000000\'
        Literal UInt64_7
        Literal \'UTC\'
      Literal Int64_-1