gaoyangxiaozhu opened a new pull request, #5856: URL: https://github.com/apache/incubator-gluten/pull/5856
## What changes were proposed in this pull request? The PR introduce the `SampleExec` native support (`SampleExecTransformer`) for velox backend, basically it transfer the `SampleExec` spark physical operator to velox `ProjectFilter` operator with `rand(seed) < fraction` expression. The feature is under feature flag `spark.gluten.sql.columnarSampleEnabled` with default is false now. (Please fill in changes proposed in this fix) (Fixes: \#5315) ## How was this patch tested? locally test with turning on feature flag  (Please explain how this patch was tested. E.g. unit tests, integration tests, manual tests) (If this patch involves UI changes, please attach a screenshot; otherwise, remove this) -- 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]
