[jira] [Commented] (FLINK-4639) Make Calcite features more pluggable

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

    [ https://issues.apache.org/jira/browse/FLINK-4639?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15506607#comment-15506607 ] 

ASF GitHub Bot commented on FLINK-4639:
---------------------------------------

GitHub user twalthr opened a pull request:

    https://github.com/apache/flink/pull/2521

    [FLINK-4639] [table] Make Calcite features more pluggable

    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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    - [x] 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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    - [x] Documentation
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    - [x] Tests & Build
      - Functionality added by the pull request is covered by tests
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    This PR adds some means to modify Calcites behavior within the Table/SQL API. It introduces a `CalciteConfig` which is available through `tEnv.getConfig().getCalciteConfig()`. It allows to append/replace a rule set, append/replace SQL operators and replace the SQL parser so far. 

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/twalthr/flink FLINK-4639

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

    https://github.com/apache/flink/pull/2521.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 #2521
    
----
commit eaff44e29f09ecd0eb5e722df06bb9b2dc492d15
Author: twalthr <tw...@apache.org>
Date:   2016-09-20T09:35:25Z

    [FLINK-4639] [table] Make Calcite features more pluggable

----


> Make Calcite features more pluggable
> ------------------------------------
>
>                 Key: FLINK-4639
>                 URL: https://issues.apache.org/jira/browse/FLINK-4639
>             Project: Flink
>          Issue Type: New Feature
>          Components: Table API & SQL
>            Reporter: Timo Walther
>            Assignee: Timo Walther
>
> Some users might want to extend the feature set of the Table API by adding or replacing Calcite optimizer rules, modifying the parser etc. It would be good to have means to hook into the Table API and change Calcite behavior. We should implement something like a {{CalciteConfigBuilder}}.



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