#KYLIN-4083, Fact Distinct Column Step may be failed or value lost whe…

[ZhengshuaiPENG]

…n hashcode of the UHC column value is Integer.MIN_VALUE

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@32044d9). Click here to learn what that means.
The diff coverage is 100%.

@@            Coverage Diff            @@
##             master     #742   +/-   ##
=========================================
  Coverage          ?   25.76%           
  Complexity        ?     6049           
=========================================
  Files             ?     1393           
  Lines             ?    82971           
  Branches          ?    11605           
=========================================
  Hits              ?    21381           
  Misses            ?    59537           
  Partials          ?     2053

Impacted Files	Coverage Δ	Complexity Δ
...ne/mr/steps/FactDistinctColumnsReducerMapping.java	82.75% <100%> (ø)	18 <1> (?)

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[coveralls]

Pull Request Test Coverage Report for Build 4724

• 5 of 5 (100.0%) changed or added relevant lines in 1 file are covered.
• 4 unchanged lines in 3 files lost coverage.
• Overall coverage increased (+0.0002%) to 28.19%

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Files with Coverage Reduction	New Missed Lines	%
core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/MemDiskStore.java	1	78.12%
server-base/src/main/java/org/apache/kylin/rest/util/QueryRequestLimits.java	1	47.62%
core-cube/src/main/java/org/apache/kylin/cube/cuboid/TreeCuboidScheduler.java	2	68.46%

Totals
Change from base Build 4719:	0.0002%
Covered Lines:	23330
Relevant Lines:	82761

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💛 - Coveralls

[ZhengshuaiPENG]

Closed because another issue fixed it