dengzhhu653 commented on PR #5890: URL: https://github.com/apache/hive/pull/5890#issuecomment-2999746694
> > > @Aggarwal-Raghav, do we know what change in [HIVE-28956](https://issues.apache.org/jira/browse/HIVE-28956) introduced a perf degradation: batching or `alterPartitions` API? cc [vikramahuja1001](https://github.com/vikramahuja1001) > > > > > > The alterPartitions API doesn't share the CD_ID the table holds, for each partition, it creates a new CD_ID with 800+ columns in COLUMNS_V2 > > @dengzhhu653, but performance-wise that shouldn't be any different from using loop over partitions and calling `alterPartition` API, isn't it? if we manage to add `CD_ID` reuse, that should improve the performance. In theory yes, the performance should be similar as before we upgrade the DataNucleus. -- 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: gitbox-unsubscr...@hive.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: gitbox-unsubscr...@hive.apache.org For additional commands, e-mail: gitbox-h...@hive.apache.org
