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https://issues.apache.org/jira/browse/FLINK-17884?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17115668#comment-17115668
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zhanghang-dev commented on FLINK-17884:
---------------------------------------


{code:java}
<resources>
    <resource>
        <directory>${project.build.directory}/codegen</directory>
        <targetPath>codegen</targetPath>
    </resource>
</resources>
{code}


> package the codegen directory to flink-sql-parser jar
> -----------------------------------------------------
>
>                 Key: FLINK-17884
>                 URL: https://issues.apache.org/jira/browse/FLINK-17884
>             Project: Flink
>          Issue Type: Improvement
>          Components: Table SQL / Planner
>    Affects Versions: 1.10.0
>            Reporter: zhanghang-dev
>            Priority: Minor
>
> Now extending flink sql requires manually copying Parser.tdd, includes/*.ftl 
> and config.fmpp, so every time flink upgrades, you may need to copy these 
> files again.If you can package codegen like calcite-core.jar. In this way, 
> every time Flink upgrades, you only need to modify the version.



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