Release 316 (8 Jul 2019)

General

• Fix date_format function failure when format string contains non-ASCII characters. ({issue}1056)
• Improve performance of queries using UNNEST. ({issue}901)
• Improve error message when statement parsing fails. ({issue}1042)

CLI

• Fix refresh of completion cache when catalog or schema is changed. ({issue}1016)
• Allow reading password from console when stdout is a pipe. ({issue}982)

Hive connector

• Acquire S3 credentials from the default AWS locations if not configured explicitly. ({issue}741)
• Only allow using roles and grants with SQL standard based authorization. ({issue}972)
• Add support for CSV file format. ({issue}920)
• Support reading from and writing to Hadoop encryption zones (Hadoop KMS). ({issue}997)
• Collect column statistics on write by default. This can be disabled using the hive.collect-column-statistics-on-write configuration property or the collect_column_statistics_on_write session property. ({issue}981)
• Eliminate unused idle threads when using the metastore cache. ({issue}1061)

PostgreSQL connector

• Add support for columns of type UUID. ({issue}1011)
• Export JMX statistics for various JDBC and connector operations. ({issue}906).

MySQL connector

• Export JMX statistics for various JDBC and connector operations. ({issue}906).

Redshift connector

• Export JMX statistics for various JDBC and connector operations. ({issue}906).

SQL Server connector

• Export JMX statistics for various JDBC and connector operations. ({issue}906).

TPC-H connector

• Fix SHOW TABLES failure when used with a hidden schema. ({issue}1005)

TPC-DS connector

• Fix SHOW TABLES failure when used with a hidden schema. ({issue}1005)

SPI

• Add support for pushing simple column and row field reference expressions into connectors via the ConnectorMetadata.applyProjection() method. ({issue}676)