zhoulii opened a new issue, #9387: URL: https://github.com/apache/paimon/issues/9387
### Search before asking - [x] I searched in the [issues](https://github.com/apache/paimon/issues) and found nothing similar. ### Paimon version 2.0 ### Compute Engine python ### Minimal reproduce step 1. Create a Data Evolution table with row tracking enabled and two normal columns. 2. Insert three rows into one normal data file. 3. Add a nullable Blob column. 4. Use PyPaimon update_by_arrow_with_row_id to update the Blob column for only the first row. 5. Read the table with PyPaimon or the Java reader. ### What doesn't meet your expectations? The read fails with the following error: ValueError: The merged row count of blob file bunch should be aligned with normal files, expect 3, got 1. The normal file contains three rows, but updating only the first row of a newly added Blob column creates a one-row Blob file. The read should succeed and return all three rows: the updated Blob value for the first row and NULL for the other two rows. ### Anything else? _No response_ ### Are you willing to submit a PR? - [x] I'm willing to submit a PR! -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
