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https://issues.apache.org/jira/browse/HIVE-287?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12884125#action_12884125
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Arvind Prabhakar commented on HIVE-287:
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@John - are you suggesting that the grammar be updated to restrict single star
argument with the specific function {{COUNT}}? If not in the grammar where else
do you think these restrictions should be coded.
In either case, what other subsystems you think will be impacted by this change
and what do you suggest should be the downstream changes to accomodate this?
p.s. I ask these questions to best utilize both our time and reduce the number
of back/froths to the extent possible.
> count distinct on multiple columns does not work
> ------------------------------------------------
>
> Key: HIVE-287
> URL: https://issues.apache.org/jira/browse/HIVE-287
> Project: Hadoop Hive
> Issue Type: Bug
> Components: Query Processor
> Reporter: Namit Jain
> Assignee: Arvind Prabhakar
> Attachments: HIVE-287-1.patch, HIVE-287-2.patch, HIVE-287-3.patch,
> HIVE-287-4.patch
>
>
> The following query does not work:
> select count(distinct col1, col2) from Tbl
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