zhuqi-lucas opened a new pull request, #21457: URL: https://github.com/apache/datafusion/pull/21457
## Which issue does this PR close? Closes #21433 ## Rationale for this change As noted by @alamb in https://github.com/apache/datafusion/pull/21182#discussion_r3039838330, `file_scan_config.rs` has grown large after the sort pushdown optimization. This PR extracts the sort pushdown helpers into their own module to improve readability and maintainability. ## What changes are included in this PR? Move sort pushdown logic from `file_scan_config.rs` (3591 → 3066 lines) into a new `sort_pushdown.rs` module (576 lines): - `rebuild_with_source`, `try_sort_file_groups_by_statistics` - `sort_files_within_groups_by_statistics`, `any_file_has_nulls_in_sort_columns` - `validate_orderings`, `is_ordering_valid_for_file_groups` - `get_projected_output_ordering`, `ordered_column_indices_from_projection` - `SortedFileGroups` struct `try_pushdown_sort` stays in the `DataSource` impl — it calls into the new module. ## Are these changes tested? Pure refactor, all existing tests pass (120 passed). ## Are there any user-facing changes? 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]
