Release 345 (23 Oct 2020)#
General#
- Add - concat_ws()function. (#4680)
- Add support for - extract()for- time with time zonevalues with precision other than 3. (#5539)
- Add dynamic filtering support for right joins. (#5555) 
- Add support for catalog session properties to the file and database backed session property managers. (#5330) 
- Improve query scalability by increasing the default broadcast join buffer size to 200MB. Broadcast join buffer size can be set using the - sink.max-broadcast-buffer-sizeconfiguration property. (#5551)
- Improve query performance by allowing larger dynamic filters. (#5529) 
- Improve performance for join queries where join keys are not of the same type. (#5461) 
- Improve performance of encrypted spilling. (#5557) 
- Improve performance of queries that use the - decimaltype. (#5181)
Security#
- Add support for JSON Web Key (JWK) to the existing JSON Web Token (JWT) authenticator. This is enabled by setting the - jwt.key-fileconfiguration property to a- httpor- httpsurl. (#5419)
- Add column security, column mask and row filter to file-based access controls. (#5460) 
- Enforce access control for column references in - USINGclause. (#5620)
JDBC driver#
- Add - sourceparameter for directly setting the source name for a query. (#4739)
Hive connector#
- Add support for - INSERTand- DELETEfor ACID tables. (#5402)
- Apply - hive.domain-compaction-thresholdto dynamic filters. (#5365)
- Add support for reading Parquet timestamps encoded as microseconds. (#5483) 
- Improve translation of Hive views. (#4661) 
- Improve storage caching by better distributing files across workers. (#5621) 
- Fix disk space accounting for storage caching. (#5621) 
- Fix failure when reading Parquet - timestampcolumns encoded as- int64. (#5443)
MongoDB connector#
MemSQL connector#
MySQL connector#
- Improve performance of queries with aggregations and - LIMITclause (but without- ORDER BY). (#5261)
PostgreSQL connector#
- Improve performance of queries with aggregations and - LIMITclause (but without- ORDER BY). (#5261)
Redshift connector#
- Add support for setting column comments. (#5397) 
SQL Server connector#
- Improve performance of queries with aggregations and - LIMITclause (but without- ORDER BY). (#5261)
Thrift connector#
- Fix handling of timestamp values. (#5596)