Fix failure when casting row values that contain null fields.
Fix failure when using complex types as map keys.
Fix potential memory tracking leak when queries are cancelled.
Fix rejection of queries that do not match any queue/resource group rules.
Previously, a 500 error was returned to the client.
Fix trim() and rtrim() functions to produce more intuitive results
when the argument contains invalid UTF-8 sequences.
Add a new web interface with cluster overview, realtime stats, and improved sorting
and filtering of queries.
Add support for FLOAT type.
Rename query.max-age to query.min-expire-age.
optimizer.columnar-processing and optimizer.columnar-processing-dictionary
properties were merged to optimizer.processing-optimization with possible
values disabled, columnar and columnar_dictionary
columnar_processing and columnar_processing_dictionary session
properties were merged to processing_optimization with possible values
disabled, columnar and columnar_dictionary
Change %y (2-digit year) in date_parse() to evaluate to a year between
1970 and 2069 inclusive.
Add queued flag to StatementStats in REST API.
Improve error messages for math operations.
Improve memory tracking in exchanges to avoid running out of Java heap space.
Improve performance of subscript operator for the MAP type.
Improve performance of JOIN and GROUPBY queries.
Hive Changes
Clean up empty staging directories after inserts.
Add hive.dfs.ipc-ping-interval config for HDFS.
Change default value of hive.dfs-timeout to 60 seconds.
Fix ORC/DWRF reader to avoid repeatedly fetching the same data when stripes
are skipped.
Fix force local scheduling for S3 or other non-HDFS file systems.