11.27. Release 0.180
General Changes
- Fix a rare bug where rows containing only null values are not returnedto the client. This only occurs when an entire result page contains onlynull values. The only known case is a query over an ORC encoded Hive tablethat does not perform any transformation of the data.
- Fix incorrect results when performing comparisons between values of approximatedata types (REAL, DOUBLE) and columns of certain exact numeric types(INTEGER, BIGINT, DECIMAL).
- Fix memory accounting for min_by() and max_by() on complex types.
- Fix query failure due to NoClassDefFoundError when scalar functions declaredin plugins are implemented with instance methods.
- Improve performance of map subscript from O(n) to O(1) in all cases. Previously, only mapsproduced by certain functions and readers could take advantage of this improvement.
- Skip unknown costs in EXPLAIN output.
- Support Secure Internal Communication between Presto nodes.
- Add initial support for CROSS JOIN against LATERAL derived tables.
- Add support for VARBINARY concatenation.
- Add Thrift Connector that makes it possible to use Presto withexternal systems without the need to implement a custom connector.
- Add experimental /v1/resourceGroupState REST endpoint on coordinator.
Hive Changes
- Fix skipping short decimal values in the optimized Parquet readerwhen they are backed by the int32 or int64 types.
- Ignore partition bucketing if table is not bucketed. This allows droppingthe bucketing from table metadata but leaving it for old partitions.
- Improve error message for Hive partitions dropped during execution.
- The optimized RCFile writer is enabled by default, but can be disabledwith the hive.rcfile-optimized-writer.enabled config option.The writer supports validation which reads back the entire file afterwriting. Validation is disabled by default, but can be enabled with thehive.rcfile.writer.validate config option.
Cassandra Changes
- Add support for INSERT.
- Add support for pushdown of non-equality predicates on clustering keys.
JDBC Driver Changes
- Add support for authenticating using Kerberos.
- Allow configuring SSL/TLS and Kerberos properties on a per-connection basis.
- Add support for executing queries using a SOCKS or HTTP proxy.
CLI Changes
- Add support for executing queries using an HTTP proxy.
SPI Changes
- Add running time limit and queued time limit to ResourceGroupInfo.
原文: https://prestodb.io/docs/current/release/release-0.180.html