[jira] [Commented] (FLINK-8863) Add user-defined function support in SQL Client

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

    [ https://issues.apache.org/jira/browse/FLINK-8863?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16533440#comment-16533440 ] 

ASF GitHub Bot commented on FLINK-8863:
---------------------------------------

Github user twalthr commented on the issue:

    https://github.com/apache/flink/pull/6090
  
    Hi @xccui, sorry for being pushy but when do you think you can update this PR? The feature freeze is in approx. 1 week and I need to coordinate my work/reviewing efforts. Let me know if you want me to take over.


> Add user-defined function support in SQL Client
> -----------------------------------------------
>
>                 Key: FLINK-8863
>                 URL: https://issues.apache.org/jira/browse/FLINK-8863
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Table API & SQL
>            Reporter: Timo Walther
>            Assignee: Xingcan Cui
>            Priority: Major
>              Labels: pull-request-available
>
> This issue is a subtask of part two "Full Embedded SQL Client" of the implementation plan mentioned in [FLIP-24|https://cwiki.apache.org/confluence/display/FLINK/FLIP-24+-+SQL+Client]. 
> It should be possible to declare user-defined functions in the SQL client. For now, we limit the registration to classes that implement {{ScalarFunction}}, {{TableFunction}}, {{AggregateFunction}}. Functions that are implemented in SQL are not part of this issue. 
> I would suggest to introduce a {{functions}} top-level property. The declaration could look similar to: 
> {code} 
> functions: 
>   - name: testFunction 
>     from: class <-- optional, default: class 
>     class: org.my.MyScalarFunction 
>     constructor: <-- optional, needed for certain types of functions 
>       - 42.0 
>       - class: org.my.Class <-- possibility to create objects via properties 
>         constructor: 
>           - 1 
>           - true 
>           - false 
>           - "whatever" 
>           - type: INT 
>             value: 1 
> {code} 



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)