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https://issues.apache.org/jira/browse/HIVE-7275?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14050988#comment-14050988
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Harish Butani commented on HIVE-7275:
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Opened HIVE-7344 to handle FirstVal, LastVal streaming.
> optimize these functions for windowing function.
> ------------------------------------------------
>
> Key: HIVE-7275
> URL: https://issues.apache.org/jira/browse/HIVE-7275
> Project: Hive
> Issue Type: Bug
> Affects Versions: 0.11.0, 0.12.0, 0.13.0
> Environment: Hadoop 2.4.0, Hive 13.0
> Reporter: Kiet Ly
>
> Please apply the window streaming optimization from issue HIVE-7143/7062 to
> these functions if they are applicable.
> row_number
> count
> rank
> dense_rank
> nvl
> rank
> dense_rank
> nvl
> cast
> decode
> median
> stddev
> coalesce
> floor
> sign
> abs
> ltrim
> substring
> to_char
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