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https://issues.apache.org/jira/browse/HIVE-20150?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Krisztian Kasa updated HIVE-20150:
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Attachment: HIVE-20150.23.patch
> TopNKey pushdown
> ----------------
>
> Key: HIVE-20150
> URL: https://issues.apache.org/jira/browse/HIVE-20150
> Project: Hive
> Issue Type: Improvement
> Components: Physical Optimizer
> Affects Versions: 4.0.0
> Reporter: Teddy Choi
> Assignee: Krisztian Kasa
> Priority: Major
> Labels: pull-request-available
> Attachments: HIVE-20150.1.patch, HIVE-20150.10.patch,
> HIVE-20150.11.patch, HIVE-20150.11.patch, HIVE-20150.14.patch,
> HIVE-20150.15.patch, HIVE-20150.16.patch, HIVE-20150.17.patch,
> HIVE-20150.17.patch, HIVE-20150.18.patch, HIVE-20150.18.patch,
> HIVE-20150.19.patch, HIVE-20150.2.patch, HIVE-20150.20.patch,
> HIVE-20150.21.patch, HIVE-20150.22.patch, HIVE-20150.23.patch,
> HIVE-20150.4.patch, HIVE-20150.5.patch, HIVE-20150.6.patch,
> HIVE-20150.7.patch, HIVE-20150.8.patch, HIVE-20150.9.patch
>
>
> TopNKey operator is implemented in HIVE-17896, but it needs more work in
> pushdown implementation. So this issue covers TopNKey pushdown implementation
> with proper tests.
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