libenchao commented on PR #20140: URL: https://github.com/apache/flink/pull/20140#issuecomment-1209118740
> I believe IN is supported out of the box, because Flink compile IN into multiple X=Y condition chained together by OR Not exactly, we have a threshold (default 4): https://github.com/apache/flink/blob/208f08b406a7fd48890cda16d317a30ee892a2e7/flink-table/flink-table-planner/src/main/scala/org/apache/flink/table/planner/plan/rules/logical/ConvertToNotInOrInRule.scala#L47 > I think we can tackle this incrementally? I agree, we can start from some common functions, such as `=`, `<>`, `<`, `>`, `<=`, `>=`, `IS NULL`, `IS NOT NULL`, `IN`, and leave others to the future. -- 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: issues-unsubscr...@flink.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
