LuciferYang commented on PR #36616: URL: https://github.com/apache/spark/pull/36616#issuecomment-1136659801
> Does the current way of using column vectors not support partition values. No, currently supported > is it to improve performance Two benefits: 1. performance improvement: a new benchmark and result has been provided to compare the performance of `ConstantColumnVector ` and `OnHeapColumnVector(OffHeapColumnVector)` in reading and writing. The existing benchmark is difficult to explain the performance improvement of end-to-end because this operation takes up less than SQL execution time 2. Memory saving: explanations have been given in the PR description. -- 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]
