[
https://issues.apache.org/jira/browse/HIVE-10697?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14546401#comment-14546401
]
Swarnim Kulkarni commented on HIVE-10697:
-----------------------------------------
Thanks [~hsubramaniyan]. Looks like I am still running into this after that:
{noformat}
java.lang.ClassCastException:
org.apache.hadoop.hive.serde2.objectinspector.StandardUnionObjectInspector$StandardUnion
cannot be cast to java.lang.Integer
at
org.apache.hadoop.hive.serde2.objectinspector.primitive.JavaIntObjectInspector.get(JavaIntObjectInspector.java:40)
at
org.apache.hadoop.hive.serde2.objectinspector.primitive.PrimitiveObjectInspectorUtils.getString(PrimitiveObjectInspectorUtils.java:810)
at
org.apache.hadoop.hive.serde2.objectinspector.primitive.PrimitiveObjectInspectorConverter$StringConverter.convert(PrimitiveObjectInspectorConverter.java:446)
at
org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorConverters$UnionConverter.convert(ObjectInspectorConverters.java:484)
at
org.apache.hadoop.hive.serde2.objectinspector.TestObjectInspectorConverters.testObjectInspectorConverters(TestObjectInspectorConverters.java:201)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at junit.framework.TestCase.runTest(TestCase.java:176)
at junit.framework.TestCase.runBare(TestCase.java:141)
at junit.framework.TestResult$1.protect(TestResult.java:122)
at junit.framework.TestResult.runProtected(TestResult.java:142)
at junit.framework.TestResult.run(TestResult.java:125)
at junit.framework.TestCase.run(TestCase.java:129)
at junit.framework.TestSuite.runTest(TestSuite.java:255)
at junit.framework.TestSuite.run(TestSuite.java:250)
at
org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:84)
at
org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at
org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
{noformat}
> ObjecInspectorConvertors#UnionConvertor does a faulty conversion
> ----------------------------------------------------------------
>
> Key: HIVE-10697
> URL: https://issues.apache.org/jira/browse/HIVE-10697
> Project: Hive
> Issue Type: Bug
> Components: Serializers/Deserializers
> Reporter: Swarnim Kulkarni
> Assignee: Swarnim Kulkarni
>
> Currently the UnionConvertor in the ObjectInspectorConvertors class has an
> issue with the convert method where it attempts to convert the
> objectinspector itself instead of converting the field.[1]. This should be
> changed to convert the field itself. This could result in a
> ClassCastException as shown below:
> {code}
> Caused by: java.lang.ClassCastException:
> org.apache.hadoop.hive.serde2.lazy.objectinspector.LazyUnionObjectInspector
> cannot be cast to org.apache.hadoop.hive.serde2.lazy.LazyString
> at
> org.apache.hadoop.hive.serde2.lazy.objectinspector.primitive.LazyStringObjectInspector.getPrimitiveWritableObject(LazyStringObjectInspector.java:51)
> at
> org.apache.hadoop.hive.serde2.objectinspector.primitive.PrimitiveObjectInspectorConverter$TextConverter.convert(PrimitiveObjectInspectorConverter.java:391)
> at
> org.apache.hadoop.hive.serde2.objectinspector.primitive.PrimitiveObjectInspectorConverter$TextConverter.convert(PrimitiveObjectInspectorConverter.java:338)
> at
> org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorConverters$UnionConverter.convert(ObjectInspectorConverters.java:456)
> at
> org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorConverters$StructConverter.convert(ObjectInspectorConverters.java:395)
> at
> org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorConverters$MapConverter.convert(ObjectInspectorConverters.java:539)
> at
> org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorConverters$StructConverter.convert(ObjectInspectorConverters.java:395)
> at
> org.apache.hadoop.hive.ql.exec.MapOperator$MapOpCtx.readRow(MapOperator.java:154)
> at
> org.apache.hadoop.hive.ql.exec.MapOperator$MapOpCtx.access$200(MapOperator.java:127)
> at
> org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:518)
> ... 9 more
> {code}
> [1]
> https://github.com/apache/hive/blob/master/serde/src/java/org/apache/hadoop/hive/serde2/objectinspector/ObjectInspectorConverters.java#L466
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