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Release 392 (3 Aug 2022)

General​

  • Add support for dynamic filtering when task-based fault-tolerant execution is enabled. (#9935)
  • Add support for correlated sub-queries in DELETE queries. (#9447)
  • Fix potential query failure in certain complex queries with multiple joins and aggregations. (#13315)

JDBC driver​

  • Add the assumeLiteralUnderscoreInMetadataCallsForNonConformingClients configuration property as a replacement for assumeLiteralNamesInMetadataCallsForNonConformingClients, which is deprecated and planned to be removed in a future release. (#12761)

ClickHouse connector​

  • Report the total time spent reading data from the data source. (#13132)

Delta Lake connector​

  • Add support for using a randomized location when creating a table, so that future table renames or drops do not interfere with new tables created with the same name. This can be disabled by setting the delta.unique-table-location configuration property to false. (#12980)
  • Add delta.metadata.live-files.cache-ttl configuration property for the caching duration of active data files. (#13316)
  • Retain metadata properties and column metadata after schema changes. (#13368, #13418)
  • Prevent writing to a table with NOT NULL or column invariants columns. (#13353)
  • Fix incorrect min and max column statistics when writing NULL values. (#13389)

Druid connector​

  • Add support for timestamp(p) predicate pushdown. (#8404)
  • Report the total time spent reading data from the data source. (#13132)
  • Change mapping for the Druid float type to the Trino real type instead of the double type. (#13412)

Hive connector​

  • Add support for short timezone IDs when translating Hive views. For example, JST now works as an alias for Asia/Tokyo. (#13179)
  • Add support for Amazon S3 Select pushdown for JSON files. (#13354)

Iceberg connector​

  • Add support for hidden $file_modified_time columns. (#13082)
  • Add support for the Avro file format. (#12125)
  • Add support for filtering splits based on $path column predicates. (#12785)
  • Improve query performance for tables with updated or deleted rows. (#13092)
  • Improve performance of the expire_snapshots command for tables with many snapshots. (#13399)
  • Use unique table locations by default. This can be disabled by setting the iceberg.unique-table-location configuration property to false. (#12941)
  • Use the correct table schema when reading a past version of a table. (#12786)
  • Return the $path column without encoding when the path contains double slashes on S3. (#13012)
  • Fix failure when inserting into a Parquet table with columns that have quotation marks in their names. (#13074)

MariaDB connector​

  • Report the total time spent reading data from the data source. (#13132)

MySQL connector​

  • Report the total time spent reading data from the data source. (#13132)
  • Change mapping for the MySQL enum type to the Trino varchar type instead of the char type. (#13303)
  • Fix failure when reading table statistics while the information_schema.column_statistics table doesn't exist. (#13323)

Oracle connector​

  • Report the total time spent reading data from the data source. (#13132)

Phoenix connector​

  • Report the total time spent reading data from the data source. (#13132)

Pinot connector​

  • Redact the values of pinot.grpc.tls.keystore-password and pinot.grpc.tls.truststore-password in the server log. (#13422)

PostgreSQL connector​

  • Report the total time spent reading data from the data source. (#13132)
  • Improve performance of queries with an IN expression within a complex expression. (#13136)

Redshift connector​

  • Report the total time spent reading data from the data source. (#13132)

SingleStore (MemSQL) connector​

  • Report the total time spent reading data from the data source. (#13132)

SQL Server connector​

  • Report the total time spent reading data from the data source. (#13132)