Release 376 (7 Apr 2022)#
General#
Add table redirection awareness for
RENAME table
operations. (#11277)Deny adding column with comment if the connector does not support this feature. (#11486)
Improve performance for queries that contain inequality expressions. (#11518)
Consider null values as identical values in
array_except
,array_union
,map_concat
,map_from_entries
,multimap_from_entries
, andmultimap_agg
functions. (#560)Fix failure of
DISTINCT .. LIMIT
operator when input data is dictionary encoded. (#11776)Fix returning of invalid results for distinct aggregation when input data is dictionary encoded. (#11776)
Fix query failure when performing joins with connectors that support index lookups. (#11758)
Fix incorrect stage memory statistics reporting for queries running with
retry-policy
set toTASK
. (#11801)
Security#
Web UI#
Add new page to display the runtime information of all workers in the cluster. (#11653)
JDBC driver#
CLI#
Add support for using the system truststore with the
--use-system-truststore
option. (#10482)
Accumulo connector#
ClickHouse connector#
Delta Lake connector#
Add support for
INSERT
,UPDATE
, andDELETE
queries on Delta Lake tables with fault-tolerant execution. (#11591)Allow setting duration for completion of dynamic filtering with the
delta.dynamic-filtering.wait-timeout
configuration property. (#11600)Improve query planning time after
ALTER TABLE ... EXECUTE optimize
by always creating a transaction log checkpoint. (#11721)Add support for reading Delta Lake tables in with auto-commit mode disabled. (#11792)
Hive connector#
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. (#11652)
Improve performance when reading Parquet data. (#11675)
Improve query performance when the same table is referenced multiple times within a query. (#11650)
Iceberg connector#
Add support for views when using Iceberg Glue catalog. (#11499)
Add support for reading Iceberg v2 tables containing deletion files. (#11642)
Add support for table redirections to the Hive connector. (#11356)
Include non-Iceberg tables when listing tables from Hive catalogs. (#11617)
Expose
nan_count
in the$partitions
metadata table. (#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. (#11652)
Improve performance when reading Parquet data. (#11675)
Fix NPE when an Iceberg data file is missing null count statistics. (#11832)
Kudu connector#
Add support for adding columns with comment. (#11486)
MySQL connector#
Improve performance of queries involving joins by pushing computation to the MySQL database. (#11638)
Oracle connector#
Improve query performance of queries involving aggregation by pushing aggregation computation to the Oracle database. (#11657)
SPI#
Add support for table procedures that execute on the coordinator only. (#11750)