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

[GitBox <gi...@apache.org>]

kbendick commented on PR #5061:
URL: https://github.com/apache/iceberg/pull/5061#issuecomment-1163854868

   > Note: This occurs occasionally.
   
   Does this mean that sometimes you get one set of results from the `select *` query and sometimes you get the other set of results listed in your “actual results”?
   
   The result set with id = 3 in it twice is concerning to me. When I’ve seen that before, it’s usually a clear sign of an issue. Often times it has occurred because one of the rows has a different kind in it, but it’s coming out on read with the schema without rowkind so then there is duplicate data.
   
   I cannot confirm that is what is happening here, but I’ve seen that before in other occurrences.


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