[GitHub] [arrow] tdcmeehan opened a new issue, #37554: [Docs][FlightRPC] Update documentation to note that `FlightInfo::schema` may be null

["tdcmeehan (via GitHub)" <gi...@apache.org>]

tdcmeehan opened a new issue, #37554:
URL: https://github.com/apache/arrow/issues/37554

   ### Describe the enhancement requested
   
   Part of #37527
   
   The documentation should note that references to `FlightInfo::schema` may be null depending on the backend service implementing the Flight endpoint (e.g. there is a queue, or it is an expensive operation, or it happens later in query processing) and which message is used (i.e., when `pollFlightInfo` is used, the underlying engine may initially not populate this value; in `getFlightInfo`, the value must be populated).
   
   ### Component(s)
   
   Documentation


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