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https://issues.apache.org/jira/browse/CASSANDRA-7395?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14080712#comment-14080712
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Robert Stupp commented on CASSANDRA-7395:
-----------------------------------------

[~thobbs] do you have time for another review? The patches reflect the changes 
above. https://github.com/snazy/cassandra/tree/7395 and 
https://github.com/snazy/cassandra/tree/7562-udf-java contain the same (just 
merged trunk yesturday).

If this ticket is ok, I could move on to CASSANDRA-7562 and either 
CASSANDRA-7557 or CASSANDRA-7526.

> Support for pure user-defined functions (UDF)
> ---------------------------------------------
>
>                 Key: CASSANDRA-7395
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7395
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: API, Core
>            Reporter: Jonathan Ellis
>            Assignee: Robert Stupp
>              Labels: cql
>             Fix For: 3.0
>
>         Attachments: 7395.txt, udf-create-syntax.png, udf-drop-syntax.png
>
>
> We have some tickets for various aspects of UDF (CASSANDRA-4914, 
> CASSANDRA-5970, CASSANDRA-4998) but they all suffer from various degrees of 
> ocean-boiling.
> Let's start with something simple: allowing pure user-defined functions in 
> the SELECT clause of a CQL query.  That's it.
> By "pure" I mean, must depend only on the input parameters.  No side effects. 
>  No exposure to C* internals.  Column values in, result out.  
> http://en.wikipedia.org/wiki/Pure_function



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