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https://issues.apache.org/jira/browse/CALCITE-1776?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17740729#comment-17740729
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Ruben Q L commented on CALCITE-1776:
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[~Sergey Nuyanzin], I'm sorry, but it seems that this old PR was forgotten
(again). Now there are some (hopefully minor) conflicts to be addressed. Do you
think you could relaunch the PR and make it up-to-date? I promise to take a
look at it and we'll hopefully get it merged once and for all...
For the time being, I'm removing the fixVersion=1.35 (but let's see if we can
aim for 1.36).
> Implement CORR and REGR_* aggregate functions
> ---------------------------------------------
>
> Key: CALCITE-1776
> URL: https://issues.apache.org/jira/browse/CALCITE-1776
> Project: Calcite
> Issue Type: New Feature
> Reporter: Dmitri Shtilman
> Assignee: Sergey Nuyanzin
> Priority: Minor
> Labels: pull-request-available
> Fix For: 1.35.0
>
>
> Implement correlation coefficient aggregate: CORR
> As well as the missing regression aggregates:
> REGR_SLOPE, REGR_INTERCEPT, REGR_COUNT, REGR_R2, REGR_AVGX, REGR_AVGY,
> REGR_SXY
> For reference, REGR_SXX and REGR_SYY have been added in [CALCITE-422]
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