sudssf opened a new issue #1220: URL: https://github.com/apache/iceberg/issues/1220
more context on thread: https://lists.apache.org/thread.html/r477483ead7c7be7346bebcaab75b405dce67607457ac3f7cf682b999%40%3Cdev.iceberg.apache.org%3E in spark2 , any operation such as join or union will end up scanning full table manifest ( without performing push down predicate) which can be really slow for large tables. in spark3, predicate pushdown is performed before calling `estimateStatistics` on reader but option is still useful if size of filter is comparatively large w.r.t manifest ( table generated by stream ingestion). ---------------------------------------------------------------- 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]
