[KYLIN-3705] Segment Pruner mis-functions when the source data has Chinese characters

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: v2.5.0, v2.5.1
• Fix Version/s: v2.5.2
• Component/s: Metadata, Query Engine
• Assignee: Xiaoxiang Yu
• Reporter: jiezouSH
• Created: 28/Nov/18 06:03
• Updated: 04/Dec/18 04:28
• Resolved: 03/Dec/18 08:40

Description

Source Data:

"合肥市"，“西安市”，“北京市”

 

sql:

select * from ZYZ.TEST_ZYZ_3 where name='合肥市'

 

Actual Result:

empty result.

 

Root Cause:

Dimension range is computed In factDistinctColumnsReducer,  but unfortunately the dimension range is not written in UTF-character. 

Issue Links

• is caused by: KYLIN-3370 Enhance segment pruning