andygrove opened a new issue, #3985: URL: https://github.com/apache/datafusion-comet/issues/3985
### What is the problem the feature request solves? Comet does not support TimestampType join keys in SMJ. This is because of an upstream restriction: DataFusion's SMJ comparator at `datafusion-physical-plan-53.0.0/src/joins/sort_merge_join/stream.rs:1820` and `utils.rs:1900` matches only `DataType::Timestamp(time_unit, None)`. Spark's TimestampType serializes to Timestamp(µs, "UTC"), so it hits the fallthrough `not_impl_err!`. ### Describe the potential solution _No response_ ### Additional context _No response_ -- 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] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
