Release Notes - Hive - Version 3.1.3

Bug

[HIVE-21489] - EXPLAIN command throws ClassCastException in Hive

[HIVE-22405] - Add ColumnVector support for ProlepticCalendar

[HIVE-22407] - Hive metastore upgrade scripts have incorrect (or outdated) comment syntax

[HIVE-22410] - CachedStore Prewarm Failure NPE

[HIVE-22704] - Distribution package incorrectly ships the upgrade.order files from the metastore module

[HIVE-22981] - DataFileReader is not closed in AvroGenericRecordReader#extractWriterTimezoneFromMetadata

[HIVE-23088] - Using Strings from log4j breaks non-log4j users

[HIVE-24316] - Upgrade ORC from 1.5.6 to 1.5.8 in branch-3.1

[HIVE-24636] - Memory leak due to stacking UDFClassLoader in Apache Commons LogFactory

[HIVE-24653] - Race condition between compactor marker generation and get splits

[HIVE-24747] - Backport HIVE-24569 to branch-3.1

[HIVE-24851] - resources leak on exception in AvroGenericRecordReader constructor

[HIVE-24964] - Backport HIVE-22453: Describe table unnecessarily fetches partitions

[HIVE-25416] - Hive metastore memory leak because datanucleus-api-jdo bug

[HIVE-25567] - Cannot import table from Tibero to Hive.

[HIVE-25600] - Compaction job creates redundant base/delta folder within base/delta folder

Improvement

[HIVE-21563] - Improve Table#getEmptyTable performance by disable registerAllFunctionsOnce

[HIVE-22241] - Implement UDF to interpret date/timestamp using its internal representation and Gregorian-Julian hybrid calendar

[HIVE-22384] - Hive MetaStore CachedStore Funcion Cache Dev

[HIVE-23044] - Make sure Cleaner doesn't delete delta directories for running queries

[HIVE-24324] - Remove deprecated API usage from Avro

[HIVE-24391] - FIX TestOrcFile failures in branch-3.1

[HIVE-24414] - Backport HIVE-19662 to branch-3.1

[HIVE-24436] - Fix Avro NULL_DEFAULT_VALUE compatibility issue

[HIVE-24965] - Describe table partition stats fetch should be configurable

[HIVE-24984] - Backport HIVE-24965: Describe table partition stats fetch should be configurable

[HIVE-25522] - NullPointerException in TxnHandler

Task

[HIVE-24788] - Backport HIVE-23338 to branch-3.1