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https://issues.apache.org/jira/browse/FLINK-20522?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated FLINK-20522:
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Labels: pull-request-available (was: )
> Make implementing a built-in function straightforward
> -----------------------------------------------------
>
> Key: FLINK-20522
> URL: https://issues.apache.org/jira/browse/FLINK-20522
> Project: Flink
> Issue Type: Sub-task
> Components: Table SQL / API, Table SQL / Planner
> Reporter: Timo Walther
> Assignee: Timo Walther
> Priority: Major
> Labels: pull-request-available
>
> FLIP-65 has introduced new abstractions for functions. They make implementing
> user-defined functions straightforward. However, currently, these abstraction
> are not available for built-in functions. Adding a built-in function requires
> many changes at different locations as shown in FLINK-6810. This is
> error-prone, limits contributions, and is also not well supported by the
> current module system.
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