[HIVE-8561] Expose Hive optiq operator tree to be able to support other sql on hadoop query engines

• Type: Task
• Status: Patch Available
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.14.0
• Component/s: CBO
• Assignee: Na Yang
• Reporter: Na Yang
• Created: 22/Oct/14 17:20
• Updated: 07/Nov/14 15:01

Description

Hive-0.14 added cost based optimization and optiq operator tree is created for select queries. However, the optiq operator tree is not visible from outside and hard to be used by other Sql on Hadoop query engine such as apache Drill. To be able to allow drill to access the hive optiq operator tree, we need to add a public api to return the hive optiq operator tree.

Issue Links

• is depended upon by: DRILL-1569 Support Hive SQL
• links to: review board link