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https://issues.apache.org/jira/browse/HBASE-9543?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13802654#comment-13802654
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Liu Shaohui commented on HBASE-9543:
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Thanks for review. [~yuzhih...@gmail.com].
a, What's your suggestion about the method name? getUniqueValues?
b, I may change the IoException to ExecutionException. Once the client receives
ExecutionException from regionserver, the method will turn immediately. But the
requests that have been send can not been canceled.
c, For partial results, i think it's not acceptable. We may add more comments
about limitation of the method.
> Impl unique aggregation
> ------------------------
>
> Key: HBASE-9543
> URL: https://issues.apache.org/jira/browse/HBASE-9543
> Project: HBase
> Issue Type: New Feature
> Components: Coprocessors
> Reporter: Liu Shaohui
> Assignee: Liu Shaohui
> Priority: Minor
> Attachments: HBASE-9543-0.94-v1.diff, HBASE-9543-trunk-v1.diff,
> HBASE-9543-trunk-v2.diff, HBASE-9543-trunk-v3.diff, HBASE-9543-trunk-v4.diff
>
>
> Impl unique aggregation: return a set of all columns' values in a scan.
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