Release 0.79#
Hive#
Add configuration option
hive.force-local-scheduling
and session propertyforce_local_scheduling
to force local scheduling of splits.Add new experimental optimized RCFile reader. The reader can be enabled by setting the configuration option
hive.optimized-reader.enabled
or session propertyoptimized_reader_enabled
.
General#
Add support for UNNEST, which can be used as a replacement for the
explode()
function in Hive.Fix a bug in the scan operator that can cause data to be missed. It currently only affects queries over
information_schema
orsys
tables, metadata queries such asSHOW PARTITIONS
and connectors that implement theConnectorPageSource
interface.