xudong963 commented on code in PR #15379:
URL: https://github.com/apache/datafusion/pull/15379#discussion_r2010098949
##########
datafusion/core/src/datasource/statistics.rs:
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@@ -39,8 +39,8 @@ pub async fn get_statistics_with_limit(
file_schema: SchemaRef,
limit: Option<usize>,
collect_stats: bool,
-) -> Result<(Vec<PartitionedFile>, Statistics)> {
- let mut result_files = vec![];
+) -> Result<(FileGroup, Statistics)> {
+ let mut result_files = FileGroup::default();
Review Comment:
The returned `Statistics` here is all files' merged statistics, or we can
say it's the `FileGroups` statistics.
This is an issue that may need the `FileGroup`'s statistic:
https://github.com/apache/datafusion/issues/10316 and a corresponding PR:
https://github.com/apache/datafusion/pull/13296
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