Release 310 (3 May 2019)

General

• Reduce compilation failures for expressions over types containing an extremely large number of nested types. ({issue}537)
• Fix error reporting when query fails with due to running out of memory. ({issue}696)
• Improve performance of JOIN queries involving join keys of different types. ({issue}665)
• Add initial and experimental support for late materialization. This feature can be enabled via experimental.work-processor-pipelines feature config or via work_processor_pipelines session config. Simple select queries of type SELECT ... FROM table ORDER BY cols LIMIT n can experience significant CPU and performance improvement. ({issue}602)
• Add support for FETCH FIRST syntax. ({issue}666)

CLI

• Make the final query time consistent with query stats. ({issue}692)

Hive connector

• Ignore boolean column statistics when the count is -1. ({issue}241)
• Prevent failures for information_schema queries when a table has an invalid storage format. ({issue}568)
• Add support for assuming AWS role when accessing S3 or Glue. ({issue}698)
• Add support for coercions between DECIMAL, DOUBLE, and REAL for partition and table schema mismatch. ({issue}352)
• Fix typo in Metastore recorder duration property name. ({issue}711)

PostgreSQL connector

• Support for the ARRAY type has been disabled by default. ({issue}687)

Blackhole connector

• Support having tables with same name in different Blackhole schemas. ({issue}550)