konstantinb commented on PR #6359: URL: https://github.com/apache/hive/pull/6359#issuecomment-4145799668
@zabetak @okumin I was unable to find a way to distinguish between "const NULL" ColStatistics objects and objects that truly have an "unknown NDV" without changing the ColStatistics class **or** refactoring the StatEstimator interface, and making PessimisticStatCombiner aware of the total # of rows from the parent stats. I believe that the latest changes for StatEstimator are minimally invasive and fully backwards-compatible. If this still feels "too intrusive", I'd appreciate some hints on possible alternatives -- 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]
