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https://issues.apache.org/jira/browse/HIVE-22197?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16928790#comment-16928790
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Vineet Garg commented on HIVE-22197:
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[~maheshk114] Thanks for providing the patch for this. Would you mind adding a
test case?
> Common Merge join throwing class cast exception
> ------------------------------------------------
>
> Key: HIVE-22197
> URL: https://issues.apache.org/jira/browse/HIVE-22197
> Project: Hive
> Issue Type: Bug
> Components: Hive
> Affects Versions: 4.0.0
> Reporter: mahesh kumar behera
> Assignee: mahesh kumar behera
> Priority: Major
> Fix For: 4.0.0
>
> Attachments: HIVE-22197.01.patch
>
>
> In DummyStoreOperator the row is cached to fix HIVE-5973. The row is copyed
> and stored in the writable format, but the object inspector is initialized to
> default. So when join operator is fetching the data from dummy store
> operator, its getting the OI is Long and the row as LongWritable. This is
> causing the class cast exception.
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