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Posted to issues@spark.apache.org by "discipleforteen (JIRA)" <ji...@apache.org> on 2017/01/15 03:51:26 UTC

[jira] [Created] (SPARK-19225) Spark SQL round constant double return null

discipleforteen created SPARK-19225:
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             Summary: Spark SQL round constant double return null 
                 Key: SPARK-19225
                 URL: https://issues.apache.org/jira/browse/SPARK-19225
             Project: Spark
          Issue Type: Bug
    Affects Versions: 2.1.0, 2.0.2, 2.0.1, 2.0.0
            Reporter: discipleforteen
             Fix For: 2.1.1


Spark SQL round constant double value may return null . like 'select round(4.4, 2)' return null in spark 2.x. it's not compatible with spark 1.x version. it seems 4.4 is casted to decimal with new SqlBase.g4 , which is casted to double in spark 1.x version.  round decimal 4.4, 2 get null in changeprecision...



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