szlta opened a new pull request #2748: URL: https://github.com/apache/hive/pull/2748
In case the query execution is vectorized for an Iceberg table, we need to make an extra file open operation on the ORC file to learn what the file schema is (to be matched later with the logical schema). In LLAP configuration the file schema could be retrieved through LLAP cache as ORC metadata is cached, so we should avoid the file operation when possible. Also: LLAP relies on cache keys that are usually triplets of file information and is constructed by an FS.listStatus call. For iceberg tables we should rely on such file information provided by Iceberg's metadata to spare this call too. -- 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
