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From "Namit Jain (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-415) Long queries does not parse in Hive
Date Wed, 15 Apr 2009 05:12:15 GMT

    [ https://issues.apache.org/jira/browse/HIVE-415?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12699054#action_12699054
] 

Namit Jain commented on HIVE-415:
---------------------------------

The output files look good, but as Raghu said, can you add a test with lots of unions.


> Long queries does not parse in Hive
> -----------------------------------
>
>                 Key: HIVE-415
>                 URL: https://issues.apache.org/jira/browse/HIVE-415
>             Project: Hadoop Hive
>          Issue Type: Bug
>          Components: Query Processor
>    Affects Versions: 0.3.0, 0.4.0
>            Reporter: Zheng Shao
>            Assignee: Zheng Shao
>            Priority: Critical
>         Attachments: HIVE-415.1.patch, HIVE-415.2.patch
>
>
> A query like this won't parse, because the Hive grammar allows backtracking:
> {code}
> select 1 from mytable UNION ALL
> select 1 from mytable UNION ALL
> select 1 from mytable UNION ALL
> select 1 from mytable UNION ALL
> select 1 from mytable UNION ALL
> select 1 from mytable UNION ALL
> select 1 from mytable UNION ALL
> select 1 from mytable UNION ALL
> select 1 from mytable UNION ALL
> select 1 from mytable UNION ALL
> select 1 from mytable UNION ALL
> select 1 from mytable UNION ALL
> select 1 from mytable UNION ALL
> select 1 from mytable UNION ALL
> select 1 from mytable UNION ALL
> select 1 from mytable UNION ALL
> select 1 from mytable UNION ALL
> select 1 from mytable UNION ALL
> select 1 from mytable UNION ALL
> select 1 from mytable UNION ALL
> select 1 from mytable UNION ALL
> select 1 from mytable UNION ALL
> select 1 from mytable UNION ALL
> select 1 from mytable UNION ALL
> select 1 from mytable;
> {code}

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