[jira] [Created] (SPARK-2053) Add Catalyst expression for CASE WHEN

[Michael Armbrust (JIRA)]

Michael Armbrust created SPARK-2053:
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             Summary: Add Catalyst expression for CASE WHEN
                 Key: SPARK-2053
                 URL: https://issues.apache.org/jira/browse/SPARK-2053
             Project: Spark
          Issue Type: Improvement
          Components: SQL
            Reporter: Michael Armbrust


Here's a rough start: 
https://github.com/marmbrus/spark/commit/1209daaf49b0a87e7f68f89c79d02b446e624db3



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