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https://issues.apache.org/jira/browse/HIVE-5657?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13817982#comment-13817982
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Hive QA commented on HIVE-5657:
-------------------------------
{color:green}Overall{color}: +1 all checks pass
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12612869/HIVE-5657.03.patch
{color:green}SUCCESS:{color} +1 4598 tests passed
Test results:
http://bigtop01.cloudera.org:8080/job/PreCommit-HIVE-Build/218/testReport
Console output:
http://bigtop01.cloudera.org:8080/job/PreCommit-HIVE-Build/218/console
Messages:
{noformat}
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12612869
> TopN produces incorrect results with count(distinct)
> ----------------------------------------------------
>
> Key: HIVE-5657
> URL: https://issues.apache.org/jira/browse/HIVE-5657
> Project: Hive
> Issue Type: Bug
> Reporter: Sergey Shelukhin
> Assignee: Sergey Shelukhin
> Priority: Critical
> Attachments: D13797.1.patch, D13797.2.patch, HIVE-5657.02.patch,
> HIVE-5657.03.patch, HIVE-5657.1.patch.txt, example.patch
>
>
> Attached patch illustrates the problem.
> limit_pushdown test has various other cases of aggregations and distincts,
> incl. count-distinct, that work correctly (that said, src dataset is bad for
> testing these things because every count, for example, produces one record
> only), so something must be special about this.
> I am not very familiar with distinct- code and these nuances; if someone
> knows a quick fix feel free to take this, otherwise I will probably start
> looking next week.
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