stczwd commented on pull request #35256: URL: https://github.com/apache/spark/pull/35256#issuecomment-1018268782
Thanks for your reply, @sunchao. Limit pushdown can terminate the capacity batch reading in advance, it is used especially when reading across rowgroups, which can reduce the reading of one rowgroup. I have test `limitBenchMark` in `ParquetNestedSchemaPruningBenchmark`. Unfortunately it didn't show clear advantage. -- 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]
