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Posted to issues@spark.apache.org by "Zongheng Yang (JIRA)" <ji...@apache.org> on 2014/06/16 20:12:01 UTC

[jira] [Created] (SPARK-2155) Support effectful / non-deterministic key expressions in CASE WHEN statements

Zongheng Yang created SPARK-2155:
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             Summary: Support effectful / non-deterministic key expressions in CASE WHEN statements
                 Key: SPARK-2155
                 URL: https://issues.apache.org/jira/browse/SPARK-2155
             Project: Spark
          Issue Type: Bug
          Components: SQL
            Reporter: Zongheng Yang


Currently we translate CASE KEY WHEN to CASE WHEN, hence incurring redundant evaluations of the key expression. Relevant discussions here:

https://github.com/apache/spark/pull/1055/files#r13784248



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