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SPARK-49543
Support v2 SHOW COLLATIONS
Support v2 `DESCRIBE TABLE EXTENDED` for columns
Support v2 DESCRIBE TABLE .. PARTITION
Support v2 SHOW FUNCTIONS
Unify v1 and v2 DESCRIBE TABLE
Cannot drop/add columns from/to a dataset of v2 `DESCRIBE NAMESPACE`
Cannot drop/add columns from/to a dataset of v2 `DESCRIBE COLUMN`
Cannot drop/add columns from/to a dataset of v2 `DESCRIBE TABLE`
Respect case sensitivity in V1 ALTER TABLE .. SET LOCATION
Rename v2 logical nodes
Fix v2 ALTER TABLE .. RENAME TO
Rename alter table exec nodes
Recognize `spark_catalog` in new identifier while view/table renaming
Support v2 `MSCK REPAIR TABLE`
Support ifExists for ALTER TABLE ... UNSET TBLPROPERTIES
Support table truncation by v2 Table Catalogs
Support partition truncation by `SupportsPartitionManagement`
Remove view checks in v1 alter table commands
Use logical plan of alter table in `CatalogImpl.recoverPartitions()`
Support v2 TRUNCATE TABLE
v2 ALTER TABLE .. DROP PARTITION does not remove data from dropped partition
v2 ALTER TABLE .. DROP PARTITION does not refresh cached table
CACHE TABLE does not support `spark_catalog` in Hive table names
Improve the error message in resolving of DSv1 multi-part identifiers
Update SQL migration guide about changes in HiveClientImpl
Recognize `spark_catalog` in `saveAsTable()` and `insertInto()`
CREATE VIEW AS SELECT FOR V2
CREATE TABLE LIKE FOR V2
v1 SHOW TABLES fails with assert on spark_catalog
Support SHOW CREATE TABLE in v2
NPE from SHOW PARTITIONS for null partition values
Implement DESCRIBE COLUMN for v2 catalog
Throw `PartitionAlreadyExistsException` if the target partition exists in Hive v1 Table Catalog
Support V2 ALTER TABLE .. RENAME PARTITION
Add comments about `PURGE` in DropTable and in AlterTableDropPartition
Describe the PURGE option of ALTER TABLE .. DROP PARTITION
Throw NoSuchPartitionsException from HiveExternalCatalog.dropPartitions()
Support partition purging by `SupportsPartitionManagement`
Sort output of V2 SHOW PARTITIONS
Remove unused parameter `retainData` from AlterTableDropPartition
Throw PartitionsAlreadyExistException from HiveExternalCatalog.createPartitions()
Require fully specified partition identifier in partitionExists()
Require exact matched partition spec to schema in ADD/DROP PARTITION
Remove VIEW checks from V1 table commands
Verify the partition provider is Hive in v1 SHOW TABLE EXTENDED
Respect case sensitivity in V1 SHOW PARTITIONS
Misleading error from ALTER TABLE .. PARTITION for non-supported partition management table
Remove getting partitions by only ident
Resolver of V2 partition specs doesn't handle __HIVE_DEFAULT_PARTITION__
Universal type conversion of V2 partition values