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https://issues.apache.org/jira/browse/HIVE-287?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12884776#action_12884776
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John Sichi commented on HIVE-287:
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@Ashish: given where we are currently, the keyword concern is valid.
But, I think we might be doing our users a disservice in the long run letting
them use standard SQL reserved keywords as unquoted identifiers. This just
causes interoperability confusion since most other systems don't support this,
and it makes data portability harder.
(I'm not proposing any immediate action on this, just pointing it out.)
> 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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