[HIVE-12245] Support column comments for an HBase backed table

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 1.3.0, 2.0.0
• Component/s: HBase Handler
• Assignee: Chaoyu Tang Assign to me
• Reporter: Chaoyu Tang
• Created: 23/Oct/15 17:48
• Updated: 18/Dec/17 18:54
• Resolved: 30/Oct/15 18:43

Description

Currently the column comments of an HBase backed table are always returned as "from deserializer". For example,

CREATE TABLE hbasetbl 
(key string comment 'It is key', 
state string comment 'It is state', 
country string comment 'It is country', 
country_id int comment 'It is country_id')
STORED BY 'org.apache.hadoop.hive.hbase.HBaseStorageHandler'
WITH SERDEPROPERTIES (
"hbase.columns.mapping" = "info:state,info:country,info:country_id"
);
hive> describe hbasetbl;
key                 	string              	from deserializer   
state               	string              	from deserializer   
country             	string              	from deserializer   
country_id          	int                 	from deserializer  

Issue Links

• breaks: HIVE-17829 ArrayIndexOutOfBoundsException - HBASE-backed tables with Avro schema in Hive2