Robert Stupp created CASSANDRA-8053:
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Summary: 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
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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