[DRILL-450] Insert Exchange operators automically in physical plan, in order to execute query in distributed way.

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Fix Version/s: 0.4.0
• Component/s: Query Planning & Optimization
• Assignee: Jinfeng Ni
• Reporter: Jinfeng Ni
• Created: 25/Mar/14 18:09
• Updated: 21/Apr/15 20:04
• Resolved: 20/Apr/14 01:34

Description

Today, the only way to run a query in distributed way in Drill is to manually insert exchange operators into a physical plan, and submit the physical plan to Drill.

We will add a set of new optiq rules to insert exchange operators to the physical plan automatically. The end user can submit a SQL statement directly to Drill, and the Drill optiq rules will insert the exchange operators when certain conditions are met. The resulting physical plan will be executed in distributed way on multiple Drillbits.