crepererum opened a new issue #368: URL: https://github.com/apache/arrow-rs/issues/368
**Is your feature request related to a problem or challenge? Please describe what you are trying to do.** As a user of `arrow-rs`, I would like to be able to inspect a parquet file stream that I have just created (e.g. to extract `ParquetMetadata`) before storing data to disk / cloud / anywhere else. To do so, I construct a `SliceableCursor` which I then feed into a `SerializedFileReader`. However, `SliceableCursor` takes its content as `Vec<u8>` even though it just uses an `Arc<Vec<u8>>` internally, so I'm required to copy the parquet data (`Vec<u8>`) just to inspect it. **Describe the solution you'd like** Allow `SliceableCursor` to be constructed from an `Arc` directly. **Describe alternatives you've considered** None. **Additional context** Downstream user is IOx, see [here](https://github.com/influxdata/influxdb_iox/blob/638d754e0f6fd2ff20e38f3b8d53d8f750a70986/parquet_file/src/metadata.rs#L183-L188). This issue affects `arrow-rs` commit `94a82cd5512a9cf9bc341100b862f2ff7f3ab159`. -- 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. For queries about this service, please contact Infrastructure at: [email protected]
