[kylin] branch 2.2.x updated: KYLIN-3635 Percentile calculation on Spark engine is wrong

[sh...@apache.org]

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

shaofengshi pushed a commit to branch 2.2.x
in repository https://gitbox.apache.org/repos/asf/kylin.git


The following commit(s) were added to refs/heads/2.2.x by this push:
     new 0b17243  KYLIN-3635 Percentile calculation on Spark engine is wrong
0b17243 is described below

commit 0b172436d90012c6573720d94134001e728e5e03
Author: shaofengshi <sh...@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 d95a054..0e0f1d2 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());
+            }
         };
     }