kangakum36 opened a new issue, #46633: URL: https://github.com/apache/arrow/issues/46633
### Describe the enhancement requested The documentation for [pyarrow.Table.combine_chunks](https://arrow.apache.org/docs/python/generated/pyarrow.Table.html#pyarrow.Table.combine_chunks) and [Table::CombineChunks](https://arrow.apache.org/docs/cpp/api/table.html#_CPPv4NK5arrow5Table13CombineChunksEP10MemoryPool) states: All the underlying chunks in the ChunkedArray of each column are concatenated into zero or one chunk. However, [this comment](https://github.com/apache/arrow/blob/d7015bd6e610b6cd6752f6cd543509bd5f8853ff/cpp/src/arrow/table.cc#L567) indicates that binary columns can be combined into multiple chunks. The documentation confused me when I was using `pyarrow.Table.combine_chunks` recently. I had a binary column with multiple chunks, each larger than 2 GiB. After calling `combine_chunks()` on the table, there were still multiple chunks in the column. I think it would help to clarify this case by updating the comments [here](https://github.com/apache/arrow/blob/d7015bd6e610b6cd6752f6cd543509bd5f8853ff/python/pyarrow/table.pxi#L4510) and [here](https://github.com/apache/arrow/blob/d7015bd6e610b6cd6752f6cd543509bd5f8853ff/cpp/src/arrow/table.h#L214). ### Component(s) C++, Python, Documentation -- 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: issues-unsubscr...@arrow.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
