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https://issues.apache.org/jira/browse/HIVE-18629?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16356214#comment-16356214
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Vihang Karajgaonkar commented on HIVE-18629:
--------------------------------------------
Patch looks good to me. Can we include a test case which would have caused the
NPE before the patch?
> copyValues in BytesColumnVector may be missing null checks
> ----------------------------------------------------------
>
> Key: HIVE-18629
> URL: https://issues.apache.org/jira/browse/HIVE-18629
> Project: Hive
> Issue Type: Bug
> Reporter: Sergey Shelukhin
> Assignee: Sergey Shelukhin
> Priority: Major
> Attachments: HIVE-18629.01.patch, HIVE-18629.patch
>
>
> {noformat}
> Caused by: java.lang.NullPointerException
> at java.lang.System.arraycopy(Native Method)
> at
> org.apache.hadoop.hive.ql.exec.vector.BytesColumnVector.setVal(BytesColumnVector.java:173)
> at
> org.apache.hadoop.hive.ql.exec.vector.BytesColumnVector.copySelected(BytesColumnVector.java:333)
> at
> org.apache.hadoop.hive.ql.exec.vector.expressions..evaluate(IfExprStringGroupColumnStringGroupColumn.java:83)
> at
> org.apache.hadoop.hive.ql.exec.vector.VectorSelectOperator.process(VectorSelectOperator.java:133)
> {noformat}
> IfExprStringGroupColumnStringGroupColumn code below the v1.isRepeating case
> has isNull checks for v2/v3 buffers that copySelected is missing.
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