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The DESCRIBE HISTORY works for Iceberg tables and displays the snapshot history of the table. An example output: DESCRIBE HISTORY iceberg_multi_snapshots; +----------------------------+---------------------+---------------------+---------------------+ | creation_time | snapshot_id | parent_id | is_current_ancestor | +----------------------------+---------------------+---------------------+---------------------+ | 2020-10-13 14:01:07.234000 | 4400379706200951771 | NULL | TRUE | | 2020-10-13 14:01:19.307000 | 4221472712544505868 | 4400379706200951771 | TRUE | +----------------------------+---------------------+---------------------+---------------------+ The purpose here was to have similar output with this new feature as what SparkSql returns for "SELECT * from tablename.history". See "History" section of https://iceberg.apache.org/spark/#inspecting-tables Testing: - iceberg-negative.test was extended to check that DESCRIBE HISTORY is not applicable for non-Iceberg tables. - iceberg-table-history.test: Covers basic usage of DESCRIBE HISTORY. Tests on tables created with Impala and also with Spark. Change-Id: I56a4b92c27e8e4a79109696cbae62735a00750e5 Reviewed-on: http://gerrit.cloudera.org:8080/16599 Reviewed-by: Zoltan Borok-Nagy <boroknagyz@cloudera.com> Reviewed-by: wangsheng <skyyws@163.com> Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>