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https://issues.apache.org/jira/browse/SPARK-2863?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Armbrust updated SPARK-2863:
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Target Version/s: 1.4.0 (was: 1.3.0)
> Emulate Hive type coercion in native reimplementations of Hive functions
> ------------------------------------------------------------------------
>
> Key: SPARK-2863
> URL: https://issues.apache.org/jira/browse/SPARK-2863
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 1.0.0
> Reporter: William Benton
> Assignee: William Benton
>
> Native reimplementations of Hive functions no longer have the same
> type-coercion behavior as they would if executed via Hive. As [Michael
> Armbrust points
> out|https://github.com/apache/spark/pull/1750#discussion_r15790970], queries
> like {{SELECT SQRT("2") FROM src LIMIT 1}} succeed in Hive but fail if
> {{SQRT}} is implemented natively.
> Spark SQL should have Hive-compatible type coercions for arguments to
> natively-implemented functions.
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