Dandandan commented on a change in pull request #8917:
URL: https://github.com/apache/arrow/pull/8917#discussion_r542743173
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File path: rust/datafusion/src/datasource/datasource.rs
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@@ -48,9 +66,19 @@ pub trait TableProvider {
&self,
projection: &Option<Vec<usize>>,
batch_size: usize,
+ filters: &[Expr],
) -> Result<Arc<dyn ExecutionPlan>>;
/// Returns the table Statistics
/// Statistics should be optional because not all data sources can provide
statistics.
fn statistics(&self) -> Statistics;
+
+ /// Tests whether the table provider can make use of a filter expression
+ /// to optimise data retrieval.
+ fn test_filter_pushdown(
Review comment:
Maybe `supports_filter_pushdown`?
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