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| # Release 376 (7 Apr 2022) | ||
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| ## General | ||
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| * Add table redirection awareness for `RENAME table` operations. ({issue}`11277`) | ||
| * Deny adding column with comment if the connector does not support this feature. ({issue}`11486`) | ||
| * Improve performance for queries that contain inequality expressions. ({issue}`11518`) | ||
| * Consider null values as identical values in `array_except`, `array_union`, | ||
| `map_concat`, `map_from_entries`, `multimap_from_entries`, and `multimap_agg` | ||
| functions. ({issue}`560`) | ||
| * Fix failure of `DISTINCT .. LIMIT` operator when input data is dictionary | ||
| encoded. ({issue}`11776`) | ||
| * Fix returning of invalid results for distinct aggregation when input data is | ||
| dictionary encoded. ({issue}`11776`) | ||
| * Fix query failure when performing joins with connectors that support index lookups. ({issue}`11758`) | ||
| * Fix incorrect stage memory statistics reporting for queries running with | ||
| `retry-policy` set to `TASK`. ({issue}`11801`) | ||
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| ## Security | ||
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| * Add support to use two-way TLS/SSL certificate validation with LDAP authentication. ({issue}`11070`) | ||
| * Fix failures in information schema role tables for catalogs using system roles. ({issue}`11694`) | ||
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| ## Web UI | ||
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| * Add new page to display the runtime information of all workers in the cluster. ({issue}`11653`) | ||
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| ## JDBC driver | ||
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| * Add support for using the system truststore with the `SSLUseSystemTrustStore` parameter. ({issue}`10482`) | ||
| * Add support for `ResultSet.getAsciiStream()` and `ResultSet.getBinaryStream()`. ({issue}`11753`) | ||
| * Remove `user` property requirement. ({issue}`11350`) | ||
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| ## CLI | ||
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| * Add support for using the system truststore with the `--use-system-truststore` option. ({issue}`10482`) | ||
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| ## Accumulo connector | ||
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| * Add support for adding and dropping schemas. ({issue}`11808`) | ||
| * Disallow creating tables in a schema that doesn't exist. ({issue}`11808`) | ||
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| ## ClickHouse connector | ||
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| * Add support for column comments when creating new tables. ({issue}`11606`) | ||
| * Add support for column comments when adding new columns. ({issue}`11606`) | ||
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| ## Delta Lake connector | ||
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| * Add support for views when using Iceberg Glue catalog. ({issue}`11499`) | ||
| * Add support for `INSERT`, `UPDATE`, and `DELETE` queries on Delta Lake tables | ||
| with fault-tolerant execution. ({issue}`11591`) | ||
| * Allow setting duration for completion of [dynamic filtering](/admin/dynamic-filtering) | ||
| with the `delta.dynamic-filtering.wait-timeout` configuration property. ({issue}`11600`) | ||
| * Improve query planning time after `ALTER TABLE ... EXECUTE optimize` by always | ||
| creating a transaction log checkpoint. ({issue}`11721`) | ||
| * Add support for reading Delta Lake tables in with auto-commit mode disabled. ({issue}`11792`) | ||
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| ## Hive connector | ||
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| * Store file min/max ORC statistics for string columns even when actual min or | ||
| max value exceeds 64 bytes. This improves query performance when filtering on | ||
| such column. ({issue}`11652`) | ||
| * Improve performance when reading Parquet data. ({issue}`11675`) | ||
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| ## Iceberg connector | ||
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| * Add support for reading Iceberg v2 tables containing deletion files. ({issue}`11642`) | ||
| * Add support for table redirections to the Hive connector. ({issue}`11356`) | ||
| * Include non-Iceberg tables when listing tables from Hive catalogs. ({issue}`11617`) | ||
| * Expose `nan_count` in the `$partitions` metadata table. ({issue}`10709`) | ||
| * Store file min/max ORC statistics for string columns even when actual min or | ||
| max value exceeds 64 bytes. This improves query performance when filtering on | ||
| such column. ({issue}`11652`) | ||
| * Improve performance when reading Parquet data. ({issue}`11675`) | ||
| * Improve query performance when the same table is referenced multiple times | ||
| within a query. ({issue}`11650`) | ||
| * Fix NPE when an Iceberg data file is missing null count statistics. ({issue}`11832`) | ||
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| ## Kudu connector | ||
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| * Add support for adding columns with comment. ({issue}`11486`) | ||
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| ## MySQL connector | ||
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| * Improve performance of queries involving joins by pushing computation to the | ||
| MySQL database. ({issue}`11638`) | ||
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| ## Oracle connector | ||
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| * Improve query performance of queries involving aggregation by pushing | ||
| aggregation computation to the Oracle database. ({issue}`11657`) | ||
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| ## SPI | ||
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| * Add support for table procedures that execute on the coordinator only. ({issue}`11750`) |