MaxGekk edited a comment on pull request #31114: URL: https://github.com/apache/spark/pull/31114#issuecomment-758202758
Alter carefully looking into `updateTableStats()`, I think this PR can cause perf regression because `updateTableStats()` re-calculate size of the entire table but existing code does that only for new partition. Just in case, we can optimize `ALTER TABLE .. DROP PARTITION` by calculating size of dropped partition only but not entire table. ---------------------------------------------------------------- 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. For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
