Hi, I would like to propose ordered data support for Flight RPC.
See the following pull request and discussion for details: * GH-34852: [C++][Go][Java][FlightRPC] Add support for ordered data https://github.com/apache/arrow/pull/35178 Preview: http://crossbow.voltrondata.com/pr_docs/35178/format/Flight.html * [DISCUSS][Format][Flight] Ordered data support https://lists.apache.org/thread/0q1s84p17rtdz3q81wvylckob1hsx83z This is based on one of the following proposals: [DISCUSS] Flight RPC/Flight SQL/ADBC enhancements https://lists.apache.org/thread/247z3t06mf132nocngc1jkp3oqglz7jp Google Docs: (Arrow ML) Arrow Flight RPC/Flight SQL Proposals https://docs.google.com/document/d/1jhPyPZSOo2iy0LqIJVUs9KWPyFULVFJXTILDfkadx2g/edit#heading=h.h2ein4otvhtq Summary: * Before: There is no ordering defined on endpoints or the data within. After: FlightInfo.ordered is added. If FlightInfo.ordered is true, this signals there is some order between data from different endpoints. * Motivation: We can optimize a sorted results case by FlightInfo.ordered. A client needs to sort by itself even when a Flight RPC system returns sorted results without FlightInfo.ordered. Because a client can't know whether results are sorted or not. * This proposal does NOT break a backward compatibility. Because clients can ignore FlightInfo.ordered. * The pull request includes reference implementations for C++, Go and Java. The vote will be open for at least 72 hours. [ ] +1 Accept this proposal [ ] +0 [ ] -1 Do not accept this proposal because... Thanks, -- kou
