wombatu-kun opened a new pull request, #18193: URL: https://github.com/apache/hudi/pull/18193
### Describe the issue this Pull Request addresses Since Flink 1.16 the LOOKUP hint allows users to suggest the Flink optimizer to: - use synchronous(sync) or asynchronous(async) lookup function - configure the async parameters - enable delayed retry strategy for lookup More info about async/retry lookups (usage and available config options): https://nightlies.apache.org/flink/flink-docs-release-1.16/docs/dev/table/sql/queries/hints/#lookup But Hudi does not support none of these features yet. ### Summary and Changelog Introduced NewLookupFunction that wraps existing HoodieLookupFunction and extends Flink's LookupFunction (which supports retry join), also added wrapper for this NewLookupFunction that extends Flink's AsyncLookupFunction. ### Impact Flink's async and retry lookup join capabilities can be used with Hudi. ### Risk Level low ### Documentation Update none ### Contributor's checklist - [ ] Read through [contributor's guide](https://hudi.apache.org/contribute/how-to-contribute) - [ ] Enough context is provided in the sections above - [ ] Adequate tests were added if applicable -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
