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From "Reynold Xin (JIRA)" <>
Subject [jira] [Created] (SPARK-6548) Adding stddev to DataFrame functions
Date Thu, 26 Mar 2015 08:02:52 GMT
Reynold Xin created SPARK-6548:

             Summary: Adding stddev to DataFrame functions
                 Key: SPARK-6548
             Project: Spark
          Issue Type: Improvement
          Components: SQL
            Reporter: Reynold Xin

Add it to the list of aggregate functions:

Also add it to

We can either add a Stddev Catalyst expression, or just compute it using existing functions
like here:

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