Release 316 (8 Jul 2019)#

General Changes#

  • Fix date_format function failure when format string contains non-ASCII characters. (#1056)

  • Improve performance of queries using UNNEST. (#901)

  • Improve error message when statement parsing fails. (#1042)

CLI Changes#

  • Fix refresh of completion cache when catalog or schema is changed. (#1016)

  • Allow reading password from console when stdout is a pipe. (#982)

Hive Connector Changes#

  • Acquire S3 credentials from the default AWS locations if not configured explicitly. (#741)

  • Only allow using roles and grants with SQL standard based authorization. (#972)

  • Add support for CSV file format. (#920)

  • Support reading from and writing to Hadoop encryption zones (Hadoop KMS). (#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. (#981)

  • Eliminate unused idle threads when using the metastore cache. (#1061)

PostgreSQL Connector Changes#

  • Add support for columns of type UUID. (#1011)

  • Export JMX statistics for various JDBC and connector operations. (#906).

MySQL Connector Changes#

  • Export JMX statistics for various JDBC and connector operations. (#906).

Redshift Connector Changes#

  • Export JMX statistics for various JDBC and connector operations. (#906).

SQL Server Connector Changes#

  • Export JMX statistics for various JDBC and connector operations. (#906).

TPC-H Connector Changes#

  • Fix SHOW TABLES failure when used with a hidden schema. (#1005)

TPC-DS Connector Changes#

  • Fix SHOW TABLES failure when used with a hidden schema. (#1005)

SPI Changes#

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