Reynold Xin created SPARK-5638:
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             Summary: Add a config flag to disable eager analysis of DataFrames
                 Key: SPARK-5638
                 URL: https://issues.apache.org/jira/browse/SPARK-5638
             Project: Spark
          Issue Type: Sub-task
          Components: SQL
            Reporter: Reynold Xin
            Assignee: Reynold Xin


SInce DataFrames are eagerly analyzed, there is no way to construct a DataFrame 
that is invalid anymore (which can be very useful for debugging invalid 
queries).





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