dwsmith1983 opened a new issue, #5655: URL: https://github.com/apache/datafusion-comet/issues/5655
### What is the problem the feature request solves? Follow-up from the native Delta Lake scan review (#5365). The admitted DV path carries Spark's row-index field, which causes the shared planner to disable file splitting, so a large DV-backed file is read by one task. Enabling native DV splitting would increase scan parallelism. If splitting is enabled, access-plan construction must prepare only the owned row groups while preserving file-global row positions, whole-file corruption validation, and memory accounting. Dictionary-page ownership, half-open split boundaries, and interaction with pruning deserve explicit regressions. Descriptor reuse can then be evaluated where multiple splits share one DV, and split-file benchmarks should accompany the change. ### Describe the potential solution No response ### Additional context Raised in the #5365 review discussion. -- 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]
