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Posted to issues@spark.apache.org by "Yin Huai (JIRA)" <ji...@apache.org> on 2015/06/24 22:25:04 UTC

[jira] [Created] (SPARK-8599) Use a Random operator to handle Random distribution generating expressions

Yin Huai created SPARK-8599:
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             Summary: Use a Random operator to handle Random distribution generating expressions
                 Key: SPARK-8599
                 URL: https://issues.apache.org/jira/browse/SPARK-8599
             Project: Spark
          Issue Type: Improvement
    Affects Versions: 1.4.0
            Reporter: Yin Huai
            Priority: Critical


Right now, we are using expressions for Random distribution generating expressions. But, we have to track them in lots of places in the optimizer to handle them carefully. Otherwise, these expressions will be treated as stateless expressions and have unexpected behaviors (e.g. SPARK-8023). 



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