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Posted to github@beam.apache.org by GitBox <gi...@apache.org> on 2022/06/04 12:36:01 UTC

[GitHub] [beam] damccorm opened a new issue, #19640: SQL should support complex types for UDF and have documentation

damccorm opened a new issue, #19640:
URL: https://github.com/apache/beam/issues/19640

   In Beam UDF, is it feasible to return a list? For example, the UDF function is defined as (input) String -\> (output) List<String\>,
   ```public static class UDF implements SerializableFunction<String, List<String\>\>```
   
    
   
   I got a nullpointerexception if a list is returned. 
   
    
   
   Best,
   
   Yang
   
   Imported from Jira [BEAM-7787](https://issues.apache.org/jira/browse/BEAM-7787). Original Jira may contain additional context.
   Reported by: yangzhang.


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