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From "Sudheesh Katkam (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (DRILL-345) Addition of a genericUDF/reflectUDF
Date Tue, 08 Jul 2014 20:26:06 GMT

     [ https://issues.apache.org/jira/browse/DRILL-345?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sudheesh Katkam reassigned DRILL-345:
-------------------------------------

    Assignee: Sudheesh Katkam

> Addition of a genericUDF/reflectUDF
> -----------------------------------
>
>                 Key: DRILL-345
>                 URL: https://issues.apache.org/jira/browse/DRILL-345
>             Project: Apache Drill
>          Issue Type: Improvement
>    Affects Versions: 1.0.0-BETA2
>            Reporter: Yash Sharma
>            Assignee: Sudheesh Katkam
>             Fix For: Future
>
>
> Add genericUDF/reflectUDF that will allow users to use methods from Java directly, instead
having to write a UDF wrapper on top of existing Java method.
> *Usage:*
> {code:sql}
> SELECT reflect("java.lang.String", "valueOf", 1),
>        reflect("java.lang.String", "isEmpty"),
>        reflect("java.lang.Math", "max", 2, 3),
>        reflect("java.lang.Math", "min", 2, 3),
>        reflect("java.lang.Math", "round", 2.5),
>        reflect("java.lang.Math", "exp", 1.0),
>        reflect("java.lang.Math", "floor", 1.9)
> FROM src LIMIT 1;
> 1   true    3   2   3   2.7182818284590455  1.0
> {code}



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