beryan opened a new issue, #45969: URL: https://github.com/apache/arrow/issues/45969
### Describe the enhancement requested As a user of the Arrow Dataset API I would like to write partitioned data and preserve Parquet schema information. For example, I may have an arrow::Table containing Parquet `INTERVAL` data stored in it's physical type representation, a `fixed_len_byte_array` of length 12. Because no arrow::Schema types are a direct match I use a `arrow::FixedSizeBinaryBuilder` to create the table. Existing properties and `arrow::dataset::FileSystemDataset::Write()` don't support providing a native schema for the output file format. As a result, the Parquet logical types of written data that do not have an arrow::schema equivalent are lost. Some Parquet logical types affected: - interval - uuid - enum - json - bson **Current behavior:** When using the Arrow Dataset API, data type roundtripping is limited by the types arrow::schema can represent **Desired behavior:** Provide a parquet schema that allows the user to specify a target schema. ### Component(s) C++ -- 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
