mapleFU opened a new issue, #8751: URL: https://github.com/apache/arrow-rs/issues/8751
**Is your feature request related to a problem or challenge? Please describe what you are trying to do.** When `PageIndexPolicy` is not `Skip`, the `ParquetMetadataReader` will read the whole page index and decoding them. The problem is that: 1. For large scan with all columns and all row-groups, this works well, decode metadata will be lightweight 2. For point-get with few columns, current it will read all column indexes and page index. Decoding them would be heavyweight sometimes **Describe the solution you'd like** A interface for row_group selection and only decoding them? **Describe alternatives you've considered** I don't know, maybe I can do io myself? **Additional context** No -- 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]
