Release 0.157#
General#
Fix regression that could cause queries containing scalar subqueries to fail during planning.
Reduce CPU usage of coordinator in large, heavily loaded clusters.
Add support for
DESCRIBE OUTPUT
.Add
bitwise_and_agg()
andbitwise_or_agg()
aggregation functions.Add JMX stats for the scheduler.
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
tonode-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#
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.