qlong opened a new issue, #16726: URL: https://github.com/apache/iceberg/issues/16726
### Feature Request / Improvement ### Feature Request / Improvement This is the companion issue for #16448, it is needed to support Spark variant extraction pushdown end to end. After Spark pushes variant_get paths from Filter/Project nodes into Iceberg scans, we need variant readers that can selectively read paths from variant, instead of returning the whole variant. **Scope** - Support read/extract most used types, do not read arrays, struct, nest struct etc for initial version. If Spark pushes down unsupported extraction type, reject pushdown and returns the whole variant. - Only wire in for batch row scan. ### Query engine None ### Willingness to contribute - [x] I can contribute this improvement/feature independently - [ ] I would be willing to contribute this improvement/feature with guidance from the Iceberg community - [ ] I cannot contribute this improvement/feature at this time -- 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] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
