nseekhao opened a new issue, #5084: URL: https://github.com/apache/arrow-datafusion/issues/5084
**Is your feature request related to a problem or challenge? Please describe what you are trying to do.** DataFusion Substrait producer/consumer currently does not support JOINs that treat a `NULL` key as the same value as another `NULL` key. This is needed in cases such as `INTERSECT`, which uses `LeftSemi Join` to compute the key intersection. In this case, a `NULL` key from the left should be treated as equal to a `NULL` key from the right. **Describe the solution you'd like** Support for `null-equals-null` joins **Describe alternatives you've considered** N/A **Additional context** N/A -- 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]
