alamb commented on code in PR #17336:
URL: https://github.com/apache/datafusion/pull/17336#discussion_r2345346409
##########
datafusion/catalog/src/table.rs:
##########
@@ -171,6 +171,38 @@ pub trait TableProvider: Debug + Sync + Send {
limit: Option<usize>,
) -> Result<Arc<dyn ExecutionPlan>>;
+ /// Create an [`ExecutionPlan`] for scanning the table using structured
arguments.
+ ///
+ /// This method uses [`ScanArgs`] to pass scan parameters in a structured
way
+ /// and returns a [`ScanResult`] containing the execution plan. This
approach
+ /// allows for extensible parameter passing and result handling.
Review Comment:
x
```suggestion
/// and returns a [`ScanResult`] containing the execution plan.
```
##########
datafusion/catalog/src/table.rs:
##########
@@ -171,6 +171,38 @@ pub trait TableProvider: Debug + Sync + Send {
limit: Option<usize>,
) -> Result<Arc<dyn ExecutionPlan>>;
+ /// Create an [`ExecutionPlan`] for scanning the table using structured
arguments.
+ ///
+ /// This method uses [`ScanArgs`] to pass scan parameters in a structured
way
+ /// and returns a [`ScanResult`] containing the execution plan. This
approach
+ /// allows for extensible parameter passing and result handling.
+ ///
+ /// Table providers can override this method to take advantage of
additional
+ /// parameters like `preferred_ordering` that may not be available through
Review Comment:
```suggestion
/// parameters like the upcoming `preferred_ordering` that may not be
available through
```
##########
datafusion/core/src/datasource/listing/table.rs:
##########
@@ -1169,6 +1169,24 @@ impl TableProvider for ListingTable {
filters: &[Expr],
limit: Option<usize>,
) -> Result<Arc<dyn ExecutionPlan>> {
+ let options = ScanArgs::default()
+ .with_projection(projection.map(|p| p.as_slice()))
+ .with_filters(Some(filters))
+ .with_limit(limit);
+ Ok(Arc::clone(
+ self.scan_with_args(state, options).await?.plan(),
+ ))
Review Comment:
```suggestion
Ok(self.scan_with_args(state, options).await?.into_inner())
```
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