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Posted to issues@spark.apache.org by "Liang-Chi Hsieh (JIRA)" <ji...@apache.org> on 2016/03/28 10:35:25 UTC

[jira] [Created] (SPARK-14191) Fix Expand operator constraints

Liang-Chi Hsieh created SPARK-14191:
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             Summary: Fix Expand operator constraints
                 Key: SPARK-14191
                 URL: https://issues.apache.org/jira/browse/SPARK-14191
             Project: Spark
          Issue Type: Bug
          Components: SQL
            Reporter: Liang-Chi Hsieh


Expand operator now uses its child plan's constraints as its valid constraints (i.e., the base of constraints). This is not correct because Expand will set its group by attributes to null values. So the nullability of these attributes should be true.



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