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https://issues.apache.org/jira/browse/HIVE-16275?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16000215#comment-16000215
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Matt McCline commented on HIVE-16275:
-------------------------------------
{code}
Caused by: java.lang.StackOverflowError
at
org.apache.hadoop.hive.ql.exec.vector.reducesink.VectorReduceSinkCommonOperator.collect(VectorReduceSinkCommonOperator.java:363)
at
org.apache.hadoop.hive.ql.exec.vector.reducesink.VectorReduceSinkCommonOperator.collect(VectorReduceSinkCommonOperator.java:368)
at
org.apache.hadoop.hive.ql.exec.vector.reducesink.VectorReduceSinkCommonOperator.collect(VectorReduceSinkCommonOperator.java:368)
at
org.apache.hadoop.hive.ql.exec.vector.reducesink.VectorReduceSinkCommonOperator.collect(VectorReduceSinkCommonOperator.java:368)
at
org.apache.hadoop.hive.ql.exec.vector.reducesink.VectorReduceSinkCommonOperator.collect(VectorReduceSinkCommonOperator.java:368)
...
{code}
> Vectorization: Add ReduceSink support for TopN (in specialized native classes)
> ------------------------------------------------------------------------------
>
> Key: HIVE-16275
> URL: https://issues.apache.org/jira/browse/HIVE-16275
> Project: Hive
> Issue Type: Bug
> Components: Hive
> Reporter: Matt McCline
> Assignee: Matt McCline
> Priority: Critical
> Fix For: 3.0.0
>
> Attachments: HIVE-16275.01.patch, HIVE-16275.02.patch,
> HIVE-16275.03.patch, HIVE-16275.04.patch, HIVE-16275.05.patch,
> HIVE-16275.06.patch, HIVE-16275.07.patch, HIVE-16275.08.patch,
> HIVE-16275.091.patch, HIVE-16275.09.patch, HIVE-16369.092.patch
>
>
> Currently, we don't specialize vectorization of ReduceSink when Top N is
> planned.
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