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Posted to commits@cassandra.apache.org by "Tyler Hobbs (JIRA)" <ji...@apache.org> on 2014/08/01 00:39:41 UTC
[jira] [Commented] (CASSANDRA-7395) Support for pure user-defined
functions (UDF)
[ https://issues.apache.org/jira/browse/CASSANDRA-7395?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14081619#comment-14081619 ]
Tyler Hobbs commented on CASSANDRA-7395:
----------------------------------------
[~snazy] sorry, I've been pretty booked with 2.1-rc bugs. I should be able to give the latest patch a review tomorrow. Thanks!
> 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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