[DRILL-6177] Merge Join - Allocate memory for outgoing value vectors based on sizes of incoming batches.

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.12.0
• Fix Version/s: 1.13.0
• Component/s: Execution - Flow
• Assignee: Padma Penumarthy
• Reporter: Padma Penumarthy
• Reviewer: Paul Rogers
• Created: 22/Feb/18 03:11
• Updated: 14/Mar/18 04:53
• Resolved: 12/Mar/18 18:47

Description

Merge join currently assigns memory by default for 64k rows. Change this to assign memory for vectors based on number of rows in the outgoing batch and sizing information of each column. 

Issue Links

• relates to: DRILL-6238 Batch sizing for operators