tustvold opened a new issue, #5021: URL: https://github.com/apache/arrow-rs/issues/5021
_This is largely a placeholder and would need further fleshing out if someone wishes to work on this_ **Is your feature request related to a problem or challenge? Please describe what you are trying to do.** <!-- A clear and concise description of what the problem is. Ex. I'm always frustrated when [...] (This section helps Arrow developers understand the context and *why* for this feature, in addition to the *what*) --> Current we only support reading IPC files from a synchronous buffer. This limits the ability to read parts of files. **Describe the solution you'd like** <!-- A clear and concise description of what you want to happen. --> I high-level implementation inspired by parquet might look like * A low-level mechanism to decode a footer from bytes - https://docs.rs/parquet/latest/parquet/file/footer/index.html * A higher-level mechanism to fetch and decode a footer from an async source - https://docs.rs/parquet/latest/parquet/arrow/async_reader/fn.fetch_parquet_metadata.html * An API to decode a RecordBatch from a data block This would then naturally lend itself to being wrapped up in an async interface similar to ParquetRecordBatchStream **Describe alternatives you've considered** <!-- A clear and concise description of any alternative solutions or features you've considered. --> **Additional context** <!-- Add any other context or screenshots about the feature request here. --> -- 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]
