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https://issues.apache.org/jira/browse/DRILL-7206?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16852120#comment-16852120
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ASF GitHub Bot commented on DRILL-7206:
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sachouche commented on pull request #1764: DRILL-7206: using primitive int list
at right or full join case
URL: https://github.com/apache/drill/pull/1764
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> Tuning hash join code using primitive int
> -----------------------------------------
>
> Key: DRILL-7206
> URL: https://issues.apache.org/jira/browse/DRILL-7206
> Project: Apache Drill
> Issue Type: Improvement
> Reporter: weijie.tong
> Assignee: weijie.tong
> Priority: Major
> Labels: ready-to-commit
> Fix For: 1.17.0
>
>
> This issue is try to tune the HashJoin implementation codes. At right or full
> join type , the HashJoinProbe will create a List<Integer> member to record
> the unmatched composed indexes. It can be replaced by a primitive
> IntArrayList without box/unbox operation ,also benefits the GC if there's
> more unmatched items.
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