Release 350 (28 Dec 2020)

General

• Add HTTP client JMX metrics. ({issue}6453)
• Improve query performance by reducing worker to worker communication overhead. ({issue}6283, {issue}6349)
• Improve performance of queries that contain IS NOT DISTINCT FROM join predicates. ({issue}6404)
• Fix failure when restricted columns have column masks. ({issue}6017)
• Fix failure when try expressions reference columns that contain @ or : in their names. ({issue}6380)
• Fix memory management config handling to use query.max-total-memory-per-node rather than only using query.max-memory-per-node for both values. ({issue}6349)

Web UI

• Fix truncation of query text in cluster overview page. ({issue}6216)

JDBC driver

• Accept java.time.OffsetTime in PreparedStatement.setObject(int, Object). ({issue}6352)
• Extend PreparedStatement.setObject(int, Object, int) to allow setting time with time zone and timestamp with time zone values with precision higher than nanoseconds. This can be done via providing a String value representing a valid SQL literal. ({issue}6352)

BigQuery connector

• Fix incorrect results for count(*) queries with views. ({issue}5635)

Cassandra connector

• Support DELETE statement with primary key or partition key. ({issue}4059)

Elasticsearch connector

• Improve query analysis performance when Elasticsearch contains many index mappings. ({issue}6368)

Kafka connector

• Support Kafka Schema Registry for Avro topics. ({issue}6137)

SQL Server connector

• Add data_compression table property to control the target compression in SQL Server. The allowed values are NONE, ROW or PAGE. ({issue}4693)

Other connectors

This change applies to the MySQL, Oracle, PostgreSQL, Redshift, and SQL Server connectors.

• Send shorter and potentially more performant queries to remote database when a Presto query has a NOT IN predicate eligible for pushdown into the connector. ({issue}6075)

SPI

• Rename LongTimeWithTimeZone.getPicoSeconds() to LongTimeWithTimeZone.getPicoseconds(). ({issue}6354)