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Release 399 (6 Oct 2022)

General​

  • Add operator CPU and wall time distribution to EXPLAIN ANALYZE VERBOSE. (#14370)
  • Improve performance of joins. (#13352)
  • Remove support for the deprecated row to json cast behavior, and remove the deprecated.legacy-row-to-json-cast configuration property. (#14388)
  • Fix error when using PREPARE with DROP VIEW when the view name is quoted. (#14196)
  • Fix potential planning failure for queries involving UNION. (#14472)
  • Fix error when using aggregations in window expressions when the function loaded from a plugin. (#14486)

Accumulo connector​

  • Change the default value of the accumulo.zookeeper.metadata.root configuration property to /trino-accumulo from /presto-accumulo. (#14326)

BigQuery connector​

  • Add support for writing array, row, and timestamp columns. (#14418, #14473)

ClickHouse connector​

  • Fix bug where the intended default value of the domain-compaction-threshold configuration property was incorrectly used as a maximum limit. (#14350)

Delta Lake connector​

  • Improve performance of reading decimal columns from Parquet files. (#14260)
  • Allow setting the AWS Security Token Service endpoint and region when using a Glue metastore. (#14412)

Hive connector​

  • Add max-partition-drops-per-query configuration property to limit the number of partition drops. (#12386)
  • Add hive.s3.region configuration property to force S3 to connect to a specific region. (#14398)
  • Improve performance of reading decimal columns from Parquet files. (#14260)
  • Reduce memory usage on the coordinator. (#14408)
  • Reduce query memory usage during inserts to S3. (#14212)
  • Change the name of the partition_column and partition_value arguments for the flush_metadata_cache procedure to partition_columns and partition_values, respectively, for parity with other procedures. (#13566)
  • Change field name matching to be case insensitive. (#13423)
  • Allow setting the AWS STS endpoint and region when using a Glue metastore. (#14412)

Hudi connector​

  • Fix failure when reading hidden columns. (#14341)

Iceberg connector​

  • Improve performance of reading decimal columns from Parquet files. (#14260)
  • Reduce planning time for complex queries. (#14443)
  • Store metastore table_type property value in uppercase for compatibility with other Iceberg catalog implementations. (#14384)
  • Allow setting the AWS STS endpoint and region when using a Glue metastore. (#14412)

Phoenix connector​

  • Fix bug where the intended default value of the domain-compaction-threshold configuration property was incorrectly used as a maximum limit. (#14350)

SQL Server connector​

  • Fix error when querying or listing tables with names that contain special characters. (#14286)

SPI​

  • Add stage output buffer distribution to EventListener. (#14400)
  • Remove deprecated TimeType.TIME, TimestampType.TIMESTAMP and TimestampWithTimeZoneType.TIMESTAMP_WITH_TIME_ZONE constants. (#14414)