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https://issues.apache.org/jira/browse/HIVE-3266?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13416782#comment-13416782
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Travis Crawford commented on HIVE-3266:
---------------------------------------
The following exception is thrown on trunk when trying to read a "binary" field
through ThriftDeserializer:
{code}
2012-07-18 00:45:49,532 ERROR CliDriver (SessionState.java:printError(400)) -
Failed with exception java.io.IOException:java.lang.ClassCastExceptio
n: [B cannot be cast to org.apache.hadoop.hive.serde2.lazy.ByteArrayRef
java.io.IOException: java.lang.ClassCastException: [B cannot be cast to
org.apache.hadoop.hive.serde2.lazy.ByteArrayRef
at org.apache.hadoop.hive.ql.exec.FetchTask.fetch(FetchTask.java:173)
at org.apache.hadoop.hive.ql.Driver.getResults(Driver.java:1375)
at
org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:270)
at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:216)
at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:412)
at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:750)
at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:613)
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 org.apache.hadoop.util.RunJar.main(RunJar.java:186)
Caused by: java.lang.ClassCastException: [B cannot be cast to
org.apache.hadoop.hive.serde2.lazy.ByteArrayRef
at
org.apache.hadoop.hive.serde2.objectinspector.primitive.JavaBinaryObjectInspector.getPrimitiveWritableObject(JavaBinaryObjectInspector.java:48)
at
org.apache.hadoop.hive.serde2.SerDeUtils.buildJSONString(SerDeUtils.java:276)
at
org.apache.hadoop.hive.serde2.SerDeUtils.buildJSONString(SerDeUtils.java:349)
at
org.apache.hadoop.hive.serde2.SerDeUtils.getJSONString(SerDeUtils.java:219)
at
org.apache.hadoop.hive.serde2.DelimitedJSONSerDe.serializeField(DelimitedJSONSerDe.java:59)
at
org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe.serialize(LazySimpleSerDe.java:365)
at org.apache.hadoop.hive.ql.exec.FetchTask.fetch(FetchTask.java:163)
... 11 more
{code}
Here we see the object is already a byte[], but we're trying to use it as a
ByteArrayRef. A small patch handles this case.
> Hive queries over thrift binary fields fail
> -------------------------------------------
>
> Key: HIVE-3266
> URL: https://issues.apache.org/jira/browse/HIVE-3266
> Project: Hive
> Issue Type: Bug
> Reporter: Travis Crawford
> Assignee: Travis Crawford
>
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