David Li created ARROW-4858: ------------------------------- Summary: [Flight][Python] Enable custom FlightDataStream in Python Key: ARROW-4858 URL: https://issues.apache.org/jira/browse/ARROW-4858 Project: Apache Arrow Issue Type: Improvement Components: FlightRPC, Python Reporter: David Li Assignee: David Li Fix For: 0.14.0
We should be able to provide a custom data stream as the result of Flight do_get in Python. In particular, when returning data produced on the fly, or when returning a large Pandas DataFrame, it'd be nice to provide data in chunks as it becomes available, rather than having to copy everything into a Table first. On the Python side, a FlightDataStream wrapper that accepts RecordBatches from a Python generator should suffice. -- This message was sent by Atlassian JIRA (v7.6.3#76005)