HuaHuaY opened a new issue, #55305: URL: https://github.com/apache/arrow/issues/55305
### Describe the enhancement requested There are two unnecessary buffer copies: 1. `BuildDataPageV1` can use the values buffer directly when there are no definition or repetition levels. 2. `BuildDataPageV2` unnecessarily copies `combined` when buffering dictionary-encoded pages; the copy is never used. ### 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: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
