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https://issues.apache.org/jira/browse/SPARK-5550?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14302850#comment-14302850
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Apache Spark commented on SPARK-5550:
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User 'chenghao-intel' has created a pull request for this issue:
https://github.com/apache/spark/pull/4326
> Custom UDF is case sensitive for HiveContext
> --------------------------------------------
>
> Key: SPARK-5550
> URL: https://issues.apache.org/jira/browse/SPARK-5550
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Reporter: Cheng Hao
>
> SQL in HiveContext, should be case insensitive, however, the following query
> will fail.
> ```
> udf.register("random0", () => { Math.random()})
> assert(sql("SELECT RANDOM0() FROM src LIMIT 1").head().getDouble(0) >= 0.0)
> ```
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