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2020-07-04 09:24:47
13.175. Release 0.79
Hive Changes
- Add configuration option
hive.force-local-scheduling
and session property force_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 property optimized_reader_enabled
.
General Changes
- 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
or sys
tables, metadata queries such as SHOW PARTITIONS
and connectors that implement the ConnectorPageSource
interface.