[DRILL-3793] Rewrite MergeJoinBatch using record batch iterator.

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.3.0
• Component/s: Execution - Relational Operators
• Assignee: amit hadke
• Reporter: amit hadke
• Reviewer: Chun Chang
• Created: 16/Sep/15 23:47
• Updated: 14/Dec/15 23:03
• Resolved: 05/Nov/15 06:01

Description

Current implementation of merge join operator is convoluted as it has to handle duplicates between record batches. MergeJoin rewrite should use record batch iterator which hides the complexity of managing multiple record batches and iterating through them.

Sub-Tasks

• Provide an iterator over record batches: Open