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From "Apache Spark (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (SPARK-23335) expression 'select conv('ffffffffffffffff',16,10) % 2' return 0
Date Mon, 05 Feb 2018 10:59:00 GMT

     [ https://issues.apache.org/jira/browse/SPARK-23335?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Apache Spark reassigned SPARK-23335:
------------------------------------

    Assignee:     (was: Apache Spark)

> expression 'select conv('ffffffffffffffff',16,10) % 2' return 0
> ---------------------------------------------------------------
>
>                 Key: SPARK-23335
>                 URL: https://issues.apache.org/jira/browse/SPARK-23335
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.1.0
>            Reporter: zhoukang
>            Priority: Major
>
> For below expression:
> {code:java}
> select conv('ffffffffffffffff',16,10) % 2;
> {code}
> it will return 0.
> {code:java}
> 0: jdbc:hive2://xxx:16> select conv('ffffffffffffffff',16,10) % 2;
>  +----------------------------------------------------------------------------------------------+--+

> | (CAST(conv(ffffffffffffffff, 16, 10) AS DOUBLE) % CAST(CAST(2 AS DECIMAL(20,0)) AS
DOUBLE)) |
>  +----------------------------------------------------------------------------------------------+--+
| 0.0 | +----------------------------------------------------------------------------------------------+--+
> {code}
> It caused by:
> {code:java}
> case a @ BinaryArithmetic(left @ StringType(), right) => a.makeCopy(Array(Cast(left,
DoubleType), right)) case a @ BinaryArithmetic(left, right @ StringType()) => a.makeCopy(Array(left,
Cast(right, DoubleType)))
> {code}



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