Release 327 (20 Dec 2019)

General

Fix join query failure when late materialization is enabled. ({issue}2144)
Fix failure of {func}word_stem for certain inputs. ({issue}2145)
Fix query failure when using transform_values() inside try() and the transformation fails for one of the rows. ({issue}2315)
Fix potential incorrect results for aggregations involving FILTER (WHERE ...) when the condition is a reference to a table column. ({issue}2267)
Allow renaming views with {doc}/sql/alter-view. ({issue}1060)
Add error_type and error_code columns to system.runtime.queries. ({issue}2249)
Rename experimental.work-processor-pipelines configuration property to experimental.late-materialization.enabled and rename work_processor_pipelines session property to late_materialization. ({issue}2275)

Fix incorrect query results when reading timestamp values from ORC files written by Hive 3.1 or later. ({issue}2099)
Fix a CDH 5.x metastore compatibility issue resulting in failure when analyzing or inserting into a table with date columns. ({issue}556)
Reduce number of metastore calls when fetching partitions. ({issue}1921)
Support reading from insert-only transactional tables. ({issue}576)
Deprecate parquet.fail-on-corrupted-statistics (previously known as hive.parquet.fail-on-corrupted-statistics). Setting this configuration property to false may hide correctness issues, leading to incorrect query results. Session property parquet_fail_with_corrupted_statistics is deprecated as well. Both configuration and session properties will be removed in a future version. ({issue}2129)
Improve concurrency when updating table or partition statistics. ({issue}2154)
Add support for renaming views. ({issue}2189)
Allow configuring the hive.orc.use-column-names config property on a per-session basis using the orc_use_column_names session property. ({issue}2248)

Support predicate pushdown for the decimal type. ({issue}2131)
Fix column position swap for delete operations that may result in deletion of the wrong records. ({issue}2252)
Improve predicate pushdown for queries that match a column against multiple values (typically using the IN operator). ({issue}2253)

Allow converting unsupported types to VARCHAR by setting the session property unsupported_type_handling or configuration property unsupported-type-handling to CONVERT_TO_VARCHAR. ({issue}1182)

Improve performance for queries involving equality and range filters over table columns. ({issue}2310)

Fix incorrect results when listing tables in information_schema. ({issue}2118)