Release 395 (7 Sep 2022)#
General#
- Reduce memory consumption when fault-tolerant execution is enabled. (#13855) 
- Reduce memory consumption of aggregations. (#12512) 
- Improve performance of aggregations with decimals. (#13573) 
- Improve concurrency for large clusters. (#13934, - 13986)
- Remove - information_schema.role_authorization_descriptorstable. (#11341)
- Fix - SHOW CREATE TABLEor- SHOW COLUMNSshowing an invalid type for columns that use a reserved keyword as column name. (#13483)
ClickHouse connector#
- Fix query failure when renaming or dropping a column with a name which matches a reserved keyword or has special characters which require it to be quoted. (#13839) 
Delta Lake connector#
- Add support for the - ALTER TABLE ... RENAME TOstatement with a Glue metastore. (#12985)
- Improve performance of inserts by automatically scaling the number of writers within a worker node. (#13111) 
- Enforce - delta.checkpoint.writeStatsAsJsonand- delta.checkpoint.writeStatsAsStructtable properties to ensure table statistics are written in the correct format. (#12031)
Hive connector#
- Improve performance of inserts by automatically scaling the number of writers within a worker node. (#13111) 
- Improve performance of S3 Select when using CSV files as an input. (#13754) 
- Fix error where the S3 KMS key is not searched in the proper AWS region when S3 client-side encryption is used. (#13715) 
Iceberg connector#
MariaDB connector#
- Fix query failure when renaming or dropping a column with a name which matches a reserved keyword or has special characters which require it to be quoted. (#13839) 
Memory connector#
- Add support for table and column comments. (#13936) 
MongoDB connector#
- Fix query failure when filtering on columns of - jsontype. (#13536)
MySQL connector#
- Fix query failure when renaming or dropping a column with a name which matches a reserved keyword or has special characters which require it to be quoted. (#13839) 
Oracle connector#
- Fix query failure when renaming or dropping a column with a name which matches a reserved keyword or has special characters which require it to be quoted. (#13839) 
Phoenix connector#
- Fix query failure when adding, renaming, or dropping a column with a name which matches a reserved keyword or has special characters which require it to be quoted. (#13839) 
PostgreSQL connector#
- Fix query failure when renaming or dropping a column with a name which matches a reserved keyword or has special characters which require it to be quoted. (#13839) 
Prometheus connector#
- Add support for case-insensitive table name matching with the - prometheus.case-insensitive-name-matchingconfiguration property. (#8740)
Redshift connector#
- Fix query failure when renaming or dropping a column with a name which matches a reserved keyword or has special characters which require it to be quoted. (#13839) 
SingleStore (MemSQL) connector#
- Fix query failure when renaming or dropping a column with a name which matches a reserved keyword or has special characters which require it to be quoted. (#13839) 
SQL Server connector#
- Fix query failure when renaming or dropping a column with a name which matches a reserved keyword or has special characters which require it to be quoted. (#13839)