dor-bernstein opened a new issue, #1946:
URL: https://github.com/apache/iceberg-python/issues/1946

   ### Apache Iceberg version
   
   None
   
   ### Please describe the bug 🐞
   
   Hey, 
   I have a large arrow table that I want to append to a partitioned iceberg 
table.
   I'm working locally with dockers and I'm using the 
tabulario/iceberg-rest:1.6.0 as my rest catalog. 
   To avoid OOMs, I'm splitting the arrow table into chunks. When using regular 
appends everything works as expected. However, I want to append all data in a 
single transaction. I have this code that does that:
   ```python
               with table.transaction() as tx:
                   for offset in range(0, data.num_rows, MAX_APPEND_CHUNK_SIZE):
                       data_slice = data.slice(offset, MAX_APPEND_CHUNK_SIZE)
                       logger.info(f'Writing batch of {data_slice.num_rows} 
with offset {offset} to table {table.name()}')
                       tx.append(data_slice)
                   tx.commit_transaction()
   ``` 
   The table is empty and was created in a different task.
   I get the following error - CommitFailedException: Requirement failed: 
branch main was created concurrently.
   When retrying I get this error pyiceberg.exceptions.CommitFailedException: 
CommitFailedException: Requirement failed: branch main has changed: expected id 
4547037169132709864 != 132570956257248456.
   
   Any help would be appreciated, 
   Thanks!
   
   ### Willingness to contribute
   
   - [ ] I can contribute a fix for this bug independently
   - [ ] I would be willing to contribute a fix for this bug with guidance from 
the Iceberg community
   - [x] I cannot contribute a fix for this bug at this time


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