[GitHub] [iceberg] RussellSpitzer edited a comment on issue #2838: Bucket partition transformation from timestamp throws error

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

RussellSpitzer edited a comment on issue #2838:
URL: https://github.com/apache/iceberg/issues/2838#issuecomment-882620963


   https://github.com/apache/iceberg/blob/0c50b2074cd5dad59bbcb4b4599ec3ae11a34b49/api/src/main/java/org/apache/iceberg/transforms/Bucket.java#L55-L58
   
   Issue is probably that we are using internally a BucketLong, but advertising to Spark that we require a Timestamp Type. Spark gives us a timestamp and we bail because we try to then do a raw cast to apply the function. Can you test with "LongType" instead? We probably will have to patch this though ... There are no tests in TestIcebergSpark for these datatypes.


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