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Posted to issues@flink.apache.org by GitBox <gi...@apache.org> on 2019/08/16 02:43:01 UTC

[GitHub] [flink] zjuwangg commented on issue #9457: [FLINK-13741][table] FunctionCatalog.getUserDefinedFunctions() should include Flink built-in functions' names

zjuwangg commented on issue #9457: [FLINK-13741][table] FunctionCatalog.getUserDefinedFunctions() should include Flink built-in functions' names
URL: https://github.com/apache/flink/pull/9457#issuecomment-521864276
 
 
   Thanks for your effort!
   Should we return flink built-in functions in `getUserDefinedFunctions ` method?
   IMO, User-defined function meanings external function registered in funcationCatalog. 
   Of course, it makes sense regard the function catalog as en empty container after first initialization and regards no matter what functions as a UDF. If so, we'd better add a notice in the method comments.
   Just minor advice.

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