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From Ingo Bürk (Jira) <j...@apache.org>
Subject [jira] [Created] (FLINK-23199) Clarify differences of overloaded term "user-defined function"
Date Thu, 01 Jul 2021 06:03:00 GMT
Ingo Bürk created FLINK-23199:

             Summary: Clarify differences of overloaded term "user-defined function"
                 Key: FLINK-23199
                 URL: https://issues.apache.org/jira/browse/FLINK-23199
             Project: Flink
          Issue Type: Improvement
          Components: API / DataStream, Documentation, Table SQL / API
            Reporter: Ingo Bürk

The term "user-defined function" exists both in DataStream API[1] and Table / SQL API[2],
but has different meanings in each. For users this can be confusing when looking at the different
possible interfaces[3], so we should improve the documentation to make it clear that these
are two different concepts.

[1] [https://ci.apache.org/projects/flink/flink-docs-master/docs/dev/datastream/user_defined_functions/]

[2] [https://ci.apache.org/projects/flink/flink-docs-master/docs/dev/table/functions/udfs/]


[3] [https://lists.apache.org/thread.html/rec5544b2b611c83780a8c2f2539bc55a8e3338ec056f23f0f3b7d326%40%3Cuser.flink.apache.org%3E]


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