You signed in with another tab or window. Reload to refresh your session.You signed out in another tab or window. Reload to refresh your session.You switched accounts on another tab or window. Reload to refresh your session.Dismiss alert
Closing as resolved. Comet now executes this expression within the native pipeline by routing it through the JVM codegen dispatcher (spark.comet.exec.scalaUDF.codegen.enabled, enabled by default), which Janino-compiles Spark's own code generation into a per-batch Arrow kernel. The expression no longer falls back to Spark, so a dedicated native (Rust) implementation is not required for coverage.
We can revisit a native implementation in the future where there is a proven performance benefit. Please reopen or file a follow-up if you hit a correctness or performance gap with the current path.
Activity
feat: support Spark unbase64 expression (apache#423)
andygrove commentedon Jun 25, 2026
Closing as resolved. Comet now executes this expression within the native pipeline by routing it through the JVM codegen dispatcher (
spark.comet.exec.scalaUDF.codegen.enabled, enabled by default), which Janino-compiles Spark's own code generation into a per-batch Arrow kernel. The expression no longer falls back to Spark, so a dedicated native (Rust) implementation is not required for coverage.We can revisit a native implementation in the future where there is a proven performance benefit. Please reopen or file a follow-up if you hit a correctness or performance gap with the current path.