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https://issues.apache.org/jira/browse/HIVE-8282?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15311255#comment-15311255
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Ashutosh Chauhan commented on HIVE-8282:
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+1
> Potential null deference in ConvertJoinMapJoin#convertJoinBucketMapJoin()
> -------------------------------------------------------------------------
>
> Key: HIVE-8282
> URL: https://issues.apache.org/jira/browse/HIVE-8282
> Project: Hive
> Issue Type: Bug
> Affects Versions: 0.14.0
> Reporter: Ted Yu
> Priority: Minor
> Attachments: HIVE-8282.patch
>
>
> In convertJoinMapJoin():
> {code}
> for (Operator<? extends OperatorDesc> parentOp :
> joinOp.getParentOperators()) {
> if (parentOp instanceof MuxOperator) {
> return null;
> }
> }
> {code}
> NPE would result if convertJoinMapJoin() returns null:
> {code}
> MapJoinOperator mapJoinOp = convertJoinMapJoin(joinOp, context,
> bigTablePosition);
> MapJoinDesc joinDesc = mapJoinOp.getConf();
> {code}
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