Makoto Yui created HIVEMALL-293:
-----------------------------------
Summary: Fix l2_norm UDAF to return DoubleWritable instead of Java
double
Key: HIVEMALL-293
URL: https://issues.apache.org/jira/browse/HIVEMALL-293
Project: Hivemall
Issue Type: Bug
Affects Versions: 0.6.0
Reporter: Makoto Yui
Assignee: Makoto Yui
Fix For: 0.6.2
{noformat}
SELECT
nvl(nullif(l2_norm(score),0.0),1.0) AS norm
FROM
access_log {noformat}
l2_norm return Java double then [nullif
UDF|[https://github.com/apache/hive/blob/master/ql/src/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDFNullif.java]]
throws the following error
{code:java}
Caused by: java.lang.ClassCastException: java.lang.Double cannot be cast to
org.apache.hadoop.hive.serde2.io.DoubleWritable
at
org.apache.hadoop.hive.serde2.objectinspector.primitive.WritableDoubleObjectInspector.get(WritableDoubleObjectInspector.java:36)
at
org.apache.hadoop.hive.serde2.objectinspector.primitive.PrimitiveObjectInspectorUtils.comparePrimitiveObjects(PrimitiveObjectInspectorUtils.java:403)
at
org.apache.hadoop.hive.ql.udf.generic.GenericUDFNullif.evaluate(GenericUDFNullif.java:95)
at
{code}
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