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From "Reynold Xin (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SPARK-21273) Decouple stats propagation from logical plan
Date Fri, 30 Jun 2017 23:06:00 GMT
Reynold Xin created SPARK-21273:
-----------------------------------

             Summary: Decouple stats propagation from logical plan
                 Key: SPARK-21273
                 URL: https://issues.apache.org/jira/browse/SPARK-21273
             Project: Spark
          Issue Type: Improvement
          Components: SQL
    Affects Versions: 2.2.0
            Reporter: Reynold Xin
            Assignee: Reynold Xin


We currently implement statistics propagation directly in logical plan. Given we already have
two different implementations, it'd make sense to actually decouple the two and add stats
propagation using mixin.

This can also be a powerful pattern in the future to add additional properties (e.g. constraints).





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