[KYLIN-2167] FactDistinctColumnsReducer may get wrong max/min partition col value

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: v1.6.0
• Fix Version/s: v1.6.0
• Assignee: Shao Feng Shi
• Reporter: Shao Feng Shi
• Created: 08/Nov/16 06:18
• Updated: 26/Nov/16 08:12
• Resolved: 09/Nov/16 07:12

Description

The FactDistinctColumnsReducer only persistent the first and last value for the partition col; while if the value patter is not "yyy-mm-dd", it may get wrong max/min value.