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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_descriptors table. (#11341)
  • Fix SHOW CREATE TABLE or SHOW COLUMNS showing 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 TO statement with a Glue metastore. (#12985)
  • Improve performance of inserts by automatically scaling the number of writers within a worker node. (#13111)
  • Enforce delta.checkpoint.writeStatsAsJson and delta.checkpoint.writeStatsAsStruct table 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​

  • Improve performance of inserts by automatically scaling the number of writers within a worker node. (#13111)
  • Fix creating metadata and manifest files with a URL-encoded name on S3 when the metadata location has trailing slashes. (#13759)

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 json type. (#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-matching configuration 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)

SPI​

  • Add support for dynamic function resolution. (#8)
  • Rename LIKE_PATTERN_FUNCTION_NAME to LIKE_FUNCTION_NAME in StandardFunctions. (#13965)
  • Remove the listAllRoleGrants method from ConnectorMetadata. (#11341)