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https://issues.apache.org/jira/browse/HIVE-15685?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15832506#comment-15832506
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Pengcheng Xiong commented on HIVE-15685:
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[~ashutoshc], could u take a look? Thanks.
> count(distinct) generates different result than expected
> --------------------------------------------------------
>
> Key: HIVE-15685
> URL: https://issues.apache.org/jira/browse/HIVE-15685
> Project: Hive
> Issue Type: Bug
> Reporter: Pengcheng Xiong
> Assignee: Pengcheng Xiong
> Attachments: HIVE-15685.01.patch
>
>
> Following query with count(distinct) generates different result than expected
> on hive master:
> {noformat}
> select count(distinct ss_ticket_number), count(distinct ss_sold_date_sk) from
> store_sales;
> {noformat}
> Expected output generated using postgres:
> {noformat}
> select count(distinct ss_ticket_number), count(distinct ss_sold_date_sk) from
> store_sales;
> count | count
> --------+-------
> 240000 | 1823
> (1 row)
> {noformat}
> Actual output
> {noformat}
> 240000 1824
> {noformat}
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