karuppayya opened a new pull request, #52551: URL: https://github.com/apache/spark/pull/52551
### What changes were proposed in this pull request? Adding ability to use ALPHA family for Theta Sketch Theta sketch aggregate currently supports only quick select. ### Why are the changes needed? Consumers like Iceberg might benefit will benefit from the sketch aggregate if has the ability to specify `ALPHA family` [Iceberg specification to use ALPHA sketches](https://iceberg.apache.org/puffin-spec/#apache-datasketches-theta-v1-blob-type) [Custom implementation of theta sketch aggregates in Iceberg](https://github.com/apache/iceberg/blob/2f6e7e6371902bcb72f21deeaea8889d4768004e/spark/v3.5/spark/src/main/scala/org/apache/spark/sql/stats/ThetaSketchAgg.scala#L67) that can be replaced with Spark Theta aggregates ### Does this PR introduce _any_ user-facing change? No ### How was this patch tested? Unit tests ### Was this patch authored or co-authored using generative AI tooling? 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] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
