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https://issues.apache.org/jira/browse/CASSANDRA-7395?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14056331#comment-14056331
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Sylvain Lebresne commented on CASSANDRA-7395:
---------------------------------------------
{quote}
{noformat}
CREATE BUNDLE Math AS (
FUNCTION sum(a bigint, b bigint) {
return a + b;
}
);
{noformat}
{quote}
For what it's worth, I'm not against having some concept of name-spacing, but I
would have a preference for something more implicit/lightweight syntax wise.
Frankly, I would be fine with not having any concept at all and letting people
namespace themselves by prefixing the function name. Anyway, others may have
diverging opinions and I don't feel extremely strongly about that, just saying
that I'm not a fan of adding too much syntax for it.
> 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
> Labels: cql
> Fix For: 3.0
>
> Attachments: 7395-v2.diff, 7395.diff
>
>
> 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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