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Posted to issues@iceberg.apache.org by GitBox <gi...@apache.org> on 2022/06/21 14:54:38 UTC

[GitHub] [iceberg] openinx commented on pull request #5061: Flink: upsert table join failed

openinx commented on PR #5061:
URL: https://github.com/apache/iceberg/pull/5061#issuecomment-1161856385

   Few questions: 
   
   1.  Why the expected results is  the following ?  Does the record `<id=6, data=20220505>` really to be the expected record in the output for a __LEFT JOIN__ ? 
   
   ```bash
   id                      data
    1                  20220607
    3                  20220505
    6                  20220505
    2                  20220504
   ```
   
   2. As we apache iceberg format v2 don't support incremental streaming reading, then how could we accomplish this streaming read and streaming join ?  Shouldn't we solve the incremental streaming read semantics firstly and then handle the complex join semantic ?


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