A comment may be specified for the structure type for the URL link.   CREATE EXTERNAL TABLE IF NOT EXISTS test_db.test_table ( `id` string comment 'id', `name` string comment 'name', `area` struct<`country`: string comment 'test country, `address`:string comment 'test address> comment 'test struct' );   The 'test country' and 'test address' comment of the area struct does not apply. The 'test structure' comment has been properly applied. What's the reason?     The same article was posted on the Apache Hive issue. https://issues.apache.org/jira/browse/HIVE-26593     ... View more