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Posted to issues@spark.apache.org by "Reynold Xin (JIRA)" <ji...@apache.org> on 2016/01/12 09:05:39 UTC

[jira] [Created] (SPARK-12771) Improve code generation for CaseWhen

Reynold Xin created SPARK-12771:
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             Summary: Improve code generation for CaseWhen
                 Key: SPARK-12771
                 URL: https://issues.apache.org/jira/browse/SPARK-12771
             Project: Spark
          Issue Type: Sub-task
          Components: SQL
            Reporter: Reynold Xin


The generated code for CaseWhen uses a control variable "got" to make sure we do not evaluate more branches once a branch is true. Changing that to generate just simple "if / else" would be slightly more efficient.



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