[jira] [Created] (MADLIB-1128) Add GROUP BY to correlation function

[Frank McQuillan (JIRA)]

Frank McQuillan created MADLIB-1128:
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             Summary: Add GROUP BY to correlation function
                 Key: MADLIB-1128
                 URL: https://issues.apache.org/jira/browse/MADLIB-1128
             Project: Apache MADlib
          Issue Type: Improvement
          Components: Module: Descriptive Statistics
            Reporter: Frank McQuillan
             Fix For: v2.0


http://madlib.incubator.apache.org/docs/latest/group__grp__correlation.html

add:

grouping_cols (optional)
TEXT, default: null. A comma-separated list of columns on which to group 
results. If NULL, correlations are produced on the complete table.



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