Add query.min-schedule-split-batch-size config flag to set the minimum number of
splits to consider for scheduling per batch.
Remove support for scheduling multiple tasks in the same stage on a single worker.
Rename node-scheduler.max-pending-splits-per-node-per-stage to
node-scheduler.max-pending-splits-per-task. The old name may still be used, but is
deprecated and will be removed in a future version.
Hive Changes
Fail attempts to create tables that are bucketed on non-existent columns.
Improve error message when trying to query tables that are bucketed on non-existent columns.
Add support for processing partitions whose schema does not match the table schema.
Add support for creating external Hive tables using the external_location table property.