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From "Robert Stupp (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-8053) Support for user defined aggregate functions
Date Sun, 09 Nov 2014 19:09:33 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-8053?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14204065#comment-14204065
] 

Robert Stupp commented on CASSANDRA-8053:
-----------------------------------------

Updated branch to
* reflect changes in CASSANDRA-7813
* prevent drop of scalar referenced by aggregate


> Support for user defined aggregate functions
> --------------------------------------------
>
>                 Key: CASSANDRA-8053
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8053
>             Project: Cassandra
>          Issue Type: New Feature
>            Reporter: Robert Stupp
>            Assignee: Robert Stupp
>              Labels: cql, udf
>             Fix For: 3.0
>
>
> CASSANDRA-4914 introduces aggregate functions.
> This ticket is about to decide how we can support "user defined aggregate functions".
UD aggregate functions should be supported for all UDF flavors (class, java, jsr223).
> Things to consider:
> * Special implementations for each scripting language should be omitted
> * No exposure of internal APIs (e.g. {{AggregateFunction}} interface)
> * No need for users to deal with serializers / codecs



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