[jira] [Commented] (FLINK-7147) Support greedy quantifier in CEP

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-7147?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16081841#comment-16081841 ] 

ASF GitHub Bot commented on FLINK-7147:
---------------------------------------

GitHub user dianfu opened a pull request:

    https://github.com/apache/flink/pull/4296

    [FLINK-7147] [cep] Support greedy quantifier in CEP

    Thanks for contributing to Apache Flink. Before you open your pull request, please take the following check list into consideration.
    If your changes take all of the items into account, feel free to open your pull request. For more information and/or questions please refer to the [How To Contribute guide](http://flink.apache.org/how-to-contribute.html).
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    - [ ] General
      - The pull request references the related JIRA issue ("[FLINK-XXX] Jira title text")
      - The pull request addresses only one issue
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    - [ ] Documentation
      - Documentation has been added for new functionality
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      - Functionality added by the pull request is covered by tests
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You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/dianfu/flink greedy_quantifier

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/flink/pull/4296.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #4296
    
----
commit 647d4c58309990d9fc924bc4343ef811dacf4ef1
Author: Dian Fu <fu...@alibaba-inc.com>
Date:   2017-07-11T08:03:42Z

    [FLINK-7147] [cep] Support greedy quantifier in CEP

----


> Support greedy quantifier in CEP
> --------------------------------
>
>                 Key: FLINK-7147
>                 URL: https://issues.apache.org/jira/browse/FLINK-7147
>             Project: Flink
>          Issue Type: Sub-task
>          Components: CEP, Table API & SQL
>            Reporter: Dian Fu
>            Assignee: Dian Fu
>
> Greedy quantifier will try to match the token as many times as possible. For example, for pattern {{a b* c}} (skip till next is used) and inputs {{a b1 b2 c}}, if the quantifier for {{b}} is greedy, it will only output {{a b1 b2 c}}.



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