Fix race in memory tracking of
JOINwhich could cause the cluster to become over committed and possibly crash.
approx_percentile()aggregation now also accepts an array of percentages.
Allow nested row type references.
Fix correctness for some queries with
INlists. When all constants in the list are in the range of 32-bit signed integers but the test value can be outside of the range,
truemay be produced when the correct result should be
Fail queries submitted while coordinator is starting.
Add JMX stats to track authentication and authorization successes and failures.
Add configuration support for the system access control plugin. The system access controller can be selected and configured using
etc/access-control.properties. Note that Presto currently does not ship with any system access controller implementations.
Add support for
WITH NO DATAsyntax in
CREATE TABLE ... AS SELECT.
Fix issue where invalid plans are generated for queries with multiple aggregations that require input values to be cast in different ways.
Fix performance issue due to redundant processing in queries involving
Add optimization that can reduce the amount of data sent over the network for grouped aggregation queries. This feature can be enabled by
optimizer.use-intermediate-aggregationsconfig property or
Do not count expected exceptions as errors in the Hive metastore client stats.
Improve performance when reading ORC files with many tiny stripes.
Add support for pre and post control and test queries.
If you are upgrading, you need to alter your
ALTER TABLE verifier_queries ADD COLUMN test_postqueries text; ALTER TABLE verifier_queries ADD COLUMN test_prequeries text; ALTER TABLE verifier_queries ADD COLUMN control_postqueries text; ALTER TABLE verifier_queries ADD COLUMN control_prequeries text;