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Posted to issues@spark.apache.org by "Cheng Hao (JIRA)" <ji...@apache.org> on 2015/06/26 09:00:11 UTC

[jira] [Created] (SPARK-8653) Add constraint for Children expression for data type

Cheng Hao created SPARK-8653:
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             Summary: Add constraint for Children expression for data type
                 Key: SPARK-8653
                 URL: https://issues.apache.org/jira/browse/SPARK-8653
             Project: Spark
          Issue Type: Sub-task
          Components: SQL
            Reporter: Cheng Hao


Currently, we have trait in Expression like `ExpectsInputTypes` and also the `checkInputDataTypes`, but can not convert the children expressions automatically, except we write the new rules in the `HiveTypeCoercion`.



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