Support for Median and Mode UDAFs
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Key: HIVE-2238
URL: https://issues.apache.org/jira/browse/HIVE-2238
Project: Hive
Issue Type: New Feature
Components: UDF
Reporter: Travis Powell
Median and Mode are essential functions for reducing/refining the data set, and
would allow for greater control over the selection of data. More involved
analytics are probably best handled by relational databases or OLAP cubes, but
Median and Mode are very practical for Hive solely in terms of delivering a
smaller data set, where items selected only have a certain mode. (Rows that
describe an object to which the table is joined where that object has a column
value frequency threshold.)
Comments are more than welcome. Would be happy to support.
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