[HIVE-12354] MapJoin with double keys is slow on MR

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.3.0, 2.0.0
• Assignee: Sergey Shelukhin
• Reporter: Sergey Shelukhin
• Created: 05/Nov/15 22:05
• Updated: 16/Feb/16 23:52
• Resolved: 12/Nov/15 19:21

Description

Double keys are also a common type when comparing numbers with strings, and such, so it happens more often than one would expect. This is due to HADOOP-12217