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From "Carl Steinbach (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HIVE-415) Long queries does not parse in Hive
Date Fri, 23 Jul 2010 16:57:04 GMT

     [ https://issues.apache.org/jira/browse/HIVE-415?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Carl Steinbach updated HIVE-415:
--------------------------------

        Fix Version/s: 0.3.0
                           (was: 0.4.0)
    Affects Version/s:     (was: 0.3.0)
                           (was: 0.4.0)

> 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
>            Reporter: Zheng Shao
>            Assignee: Zheng Shao
>            Priority: Critical
>             Fix For: 0.3.0
>
>         Attachments: HIVE-415.1.patch, HIVE-415.2.patch, HIVE-415.3.branch-0.3.patch,
HIVE-415.3.trunk.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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