xudong963 commented on code in PR #15416:
URL: https://github.com/apache/datafusion/pull/15416#discussion_r2011719252
##########
datafusion/datasource/src/source.rs:
##########
@@ -230,4 +231,17 @@ impl DataSourceExec {
Boundedness::Bounded,
)
}
+
+ /// Downcast the `DataSourceExec` to a specific file source
+ pub fn downcast_to_source<T: 'static>(&self) -> Option<(&FileScanConfig,
&T)> {
Review Comment:
The main change.
The changed code of other files is replaced with the method.
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