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https://issues.apache.org/jira/browse/HIVE-357?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Carl Steinbach updated HIVE-357:
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    Component/s: UDF

> Add order-sensitive and order-insensitive hashing aggregation functions (UDAF)
> ------------------------------------------------------------------------------
>
>                 Key: HIVE-357
>                 URL: https://issues.apache.org/jira/browse/HIVE-357
>             Project: Hive
>          Issue Type: New Feature
>          Components: Query Processor, UDF
>            Reporter: Zheng Shao
>            Assignee: Zheng Shao
>
> In order to test whether a new version of Hive produces exactly the same 
> result as an order version, we usually want to run a bunch of big queries as 
> well as small queries.
> It's hard to compare the result of big queries, but if we have a hashing 
> aggregation function, we can just aggregate the result of big queries and 
> compare the single number.

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