edgarRd opened a new issue #1206: URL: https://github.com/apache/iceberg/issues/1206
When migrating a table to Iceberg and importing existing files, e.g. ORC files, via `SparkTableUtil#listPartitions` the files imported most likely do not have Iceberg IDs stored - at least this is the case for ORC. Therefore, metrics computation for these files is skipped entirely. We could use NameMapping to match the destination table Schema in Iceberg to the column names in the existing files. This will allow users to migrate to Iceberg and get metrics computed which ultimately will improve query performance. ---------------------------------------------------------------- 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]
