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https://issues.apache.org/jira/browse/HIVE-1060?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12805216#action_12805216
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Zheng Shao commented on HIVE-1060:
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One more question:
Can you find out why the follow-on semantic analysis didn't catch this problem?
The column reference should end up with "ambiguous column" since both tables
have this column, but apparently it didn't.
> disable SELECT * FROM a JOIN b ON key
> -------------------------------------
>
> Key: HIVE-1060
> URL: https://issues.apache.org/jira/browse/HIVE-1060
> Project: Hadoop Hive
> Issue Type: Bug
> Affects Versions: 0.5.0, 0.6.0
> Reporter: Zheng Shao
> Assignee: Vikram Chandrasekhar
> Attachments: HIVE-1060.1.patch
>
>
> In some SQL dialect, we support this kind of syntax as a shortcut of "a.key =
> b.key".
> We should output an error for this. Currently we are allowing this because we
> might have implicit type conversion from String to Boolean.
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