[DRILL-576] Add cost model for distribution and enable new plans

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.4.0
• Assignee: Aman Sinha
• Reporter: Aman Sinha
• Created: 26/Apr/14 02:02
• Updated: 31/Jul/14 06:32
• Resolved: 09/May/14 23:44

Description

Add cost model for Drill to include distribution costs and enable new plans:

• enable hash join and hash aggregate plans through the cost based comparison with existing merge join and streaming aggregate plans.
• allow creating join and aggregation plans with alternative distributions.

Issue Links

• is blocked by: DRILL-627 Hash join leaks memory