GitHub user FelixYBW added a comment to the discussion: [Question] TPC-DS 1TB Benchmarking results for Non-Partitioned Delta tables with Velox Backend
Delta tables has a bit lower performance than pure hive table. Delta uses SQL to query metadata during the SQL processing. But some operators are not supported in the metadata query which caused frequent C2R, R2C in some cases and perform worse than vanilla spark. Welcome to fix. GitHub link: https://github.com/apache/incubator-gluten/discussions/11463#discussioncomment-15612644 ---- This is an automatically sent email for [email protected]. To unsubscribe, please send an email to: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
