Release 394 (29 Aug 2022)#
General#
- Add support for JSON as an output format of - EXPLAIN. (#12968)
- Improve performance of queries involving joins on a single - bigintcolumn. (#13432)
- Improve performance of - LIKEexpressions. (#13479)
- Ensure - UPDATEqueries cannot insert null values into columns with a- NOT NULLconstraint. (#13435)
- Fix failure when an - UPDATEquery contains a- WHEREclause which always evaluates to false. (#12422)
- Fix potential failure for queries involving joins and implicit or explicit casts of - nullto a concrete type. (#13565)
Docker image#
- Ensure Trino stops running with insufficient resources to avoid partial failures. (#13736) 
BigQuery connector#
Delta Lake connector#
Druid connector#
- Improve performance of queries that perform filtering on - varcharcolumns that contain temporal data with the format- YYYY-MM-DD. (#12925)
Elasticsearch connector#
- Add support for multiple hosts in the - elasticsearch.hostconfiguration property. (#12530)
Hive connector#
Iceberg connector#
- Improve query planning performance when a - varcharpartitioning column contains date values in the- YYYY-MM-DDformat. (#12925)
- Fix query failure when using the - [VERSION | TIMESTAMP] AS OFclause on a table created with Iceberg versions older than 0.12. (#13613)
- Fix failure when reading Parquet data that contains only null values. (#9424) 
Oracle connector#
- Improve performance of queries that perform filtering on - varcharcolumns that contain temporal data with the format- YYYY-MM-DD. (#12925)
Phoenix connector#
- Improve performance of queries that perform filtering on - varcharcolumns that contain temporal data with the format- YYYY-MM-DD. (#12925)
Pinot connector#
PostgreSQL connector#
SQL Server connector#
- Prevent renaming a column to a name which is longer than the maximum length supported by SQL Server. Previously, long names were truncated. (#13742) 
SPI#
- Add the query plan in JSON format to - QueryCompletedEvent, and allow connectors to request anonymized query plans in the- QueryCompletedEvent. (#12968)