raulcd commented on PR #47115:
URL: https://github.com/apache/arrow/pull/47115#issuecomment-3197717756
that's interesting, I hacked something quick and dirty locally to validate
dictionary deltas with flight just exposing the ` virtual arrow::ipc::ReadStats
stats() const = 0;` to the `FlightStreamReader` and was able to validate deltas
work (of course using the correct `IpcWriteOptions.emit_dictionary_deltas`:
```
pyarrow/tests/test_flight.py Stats: {'num_messages': 7,
'num_record_batches': 3, 'num_dictionary_batches': 3, 'num_dictionary_deltas':
2, 'num_replaced_dictionaries': 0}
```
@lidavidm what do you think about exposing some `ReadStats` on the
`FlightStreamReader`, Should this be it's own FlightStats instead of
`arrow::ipc::ReadStats`?
I recall there were some requests to have a method exposing the stats like,
which we can use to do this:
- https://github.com/apache/arrow/issues/47171
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