[jira] [Updated] (HIVE-2309) Incorrect regular expression for extracting task id from filename

[Paul Yang (JIRA)]

     [ 
https://issues.apache.org/jira/browse/HIVE-2309?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Paul Yang updated HIVE-2309:
----------------------------

    Attachment: HIVE-2309.2.patch

> Incorrect regular expression for extracting task id from filename
> -----------------------------------------------------------------
>
>                 Key: HIVE-2309
>                 URL: https://issues.apache.org/jira/browse/HIVE-2309
>             Project: Hive
>          Issue Type: Bug
>          Components: Query Processor
>    Affects Versions: 0.7.1
>            Reporter: Paul Yang
>            Assignee: Paul Yang
>            Priority: Minor
>         Attachments: HIVE-2309.1.patch, HIVE-2309.2.patch
>
>
> For producing the correct filenames for bucketed tables, there is a method in 
> Utilities.java that extracts out the task id from the filename and replaces 
> it with the bucket number. There is a bug in the regex that is used to 
> extract this value for attempt numbers >= 10:
> {code}
> >>> re.match("^.*?([0-9]+)(_[0​-9])?(\\..*)?$", 
> >>> 'attempt_201107090429_6496​5_m_001210_10').group(1)
> '10'
> >>> re.match("^.*?([0-9]+)(_[0​-9])?(\\..*)?$", 
> >>> 'attempt_201107090429_6496​5_m_001210_9').group(1)
> '001210'
> {code}

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