Daniel Mescheder created HIVE-10418:
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Summary: It is impossible to avoid the deprecated
AggregationBuffer when implementing a GenericUDAFEvaluator
Key: HIVE-10418
URL: https://issues.apache.org/jira/browse/HIVE-10418
Project: Hive
Issue Type: Bug
Components: API
Affects Versions: 0.13.1
Reporter: Daniel Mescheder
To create a custom UDAF I derived from GenericUDAFEvaluator (in scala). The
public interface of this class uses the AggregationBuffer class.
The scala compiler complains because the interface of my class makes heavy use
of a deprecated type (AggregationBuffer) - however there is no way to use the
suggested AbstractAggregationBuffer due to the interface of the parent class.
Expected behaviour: As long as AggregationBuffer is still an unavoidable part
of the public interface it should not be marked deprecated.
If it remains deprecated, GenericUDAFEvaluator methods should take
AbstractAggregationBuffer arguments instead.
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