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From "Pengcheng Xiong (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-15978) Support regr_* functions
Date Fri, 10 Mar 2017 00:27:37 GMT

    [ https://issues.apache.org/jira/browse/HIVE-15978?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15904138#comment-15904138
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Pengcheng Xiong commented on HIVE-15978:
----------------------------------------

I think you need to create GenericUDAF for each of these? And also you need to support "OVER"?
see https://docs.oracle.com/cd/B19306_01/server.102/b14200/functions132.htm

> Support regr_* functions
> ------------------------
>
>                 Key: HIVE-15978
>                 URL: https://issues.apache.org/jira/browse/HIVE-15978
>             Project: Hive
>          Issue Type: Sub-task
>          Components: SQL
>            Reporter: Carter Shanklin
>            Assignee: Zoltan Haindrich
>
> Support the standard regr_* functions, regr_slope, regr_intercept, regr_r2, regr_sxx,
regr_syy, regr_sxy, regr_avgx, regr_avgy, regr_count. SQL reference section 10.9



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