[GitHub] [iceberg] moon-fall commented on issue #2679: error when run flink-sql with iceberg table that has identifierFieldIds

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

moon-fall commented on issue #2679:
URL: https://github.com/apache/iceberg/issues/2679#issuecomment-856691813


   > I think this is because the Iceberg identifier field column can be nullable, but Flink does not allow nullable primary key column. Is it the case for you? What is the type of `id` column in your Iceberg schema?
   
   yes, the type of `id` column is string


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