IndifferentArea opened a new issue, #43249: URL: https://github.com/apache/arrow/issues/43249
### Describe the enhancement requested https://github.com/apache/arrow/blob/03726178494c8978bf48b9bab15ed9676e7c9196/cpp/src/parquet/encoding.cc#L2735-L2737 It seems that the template parameter `DType` is never used. In addition, [only `ByteArray` could be encoded with `DeltaLengthByteArrayEncoder`](https://parquet.apache.org/docs/file-format/data-pages/encodings/#delta-length-byte-array-delta_length_byte_array--6). So maybe it can be removed. ### Component(s) C++, Parquet -- 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
