[kylin] branch 2.4.x updated: KYLIN-3635 Percentile calculation on Spark engine is wrong

[shaofengshi]

This is an automated email from the ASF dual-hosted git repository.

shaofengshi pushed a commit to branch 2.4.x
in repository https://gitbox.apache.org/repos/asf/kylin.git


The following commit(s) were added to refs/heads/2.4.x by this push:
     new ce4c951  KYLIN-3635 Percentile calculation on Spark engine is wrong
ce4c951 is described below

commit ce4c9518926584e8c588fdd2271c39eeb80aa172
Author: shaofengshi <shaofeng...@apache.org>
AuthorDate: Thu Oct 18 19:21:16 2018 +0800

    KYLIN-3635 Percentile calculation on Spark engine is wrong
---
 .../org/apache/kylin/measure/percentile/PercentileMeasureType.java   | 5 +++++
 1 file changed, 5 insertions(+)

diff --git 
a/core-metadata/src/main/java/org/apache/kylin/measure/percentile/PercentileMeasureType.java
 
b/core-metadata/src/main/java/org/apache/kylin/measure/percentile/PercentileMeasureType.java
index 2c79784..a5a4b9e 100644
--- 
a/core-metadata/src/main/java/org/apache/kylin/measure/percentile/PercentileMeasureType.java
+++ 
b/core-metadata/src/main/java/org/apache/kylin/measure/percentile/PercentileMeasureType.java
@@ -82,6 +82,11 @@ public class PercentileMeasureType extends 
MeasureType<PercentileCounter> {
                 }
                 return counter;
             }
+
+            @Override
+            public void reset() {
+                current = new PercentileCounter(dataType.getPrecision());
+            }
         };
     }