andygrove commented on a change in pull request #9064:
URL: https://github.com/apache/arrow/pull/9064#discussion_r551040214
##########
File path: rust/datafusion/src/datasource/parquet.rs
##########
@@ -62,17 +64,37 @@ impl TableProvider for ParquetTable {
self.schema.clone()
}
+ fn supports_filter_pushdown(
+ &self,
+ _filter: &Expr,
+ ) -> Result<TableProviderFilterPushDown> {
+ Ok(TableProviderFilterPushDown::Inexact)
+ }
+
/// Scan the file(s), using the provided projection, and return one
BatchIterator per
/// partition.
fn scan(
&self,
projection: &Option<Vec<usize>>,
batch_size: usize,
- _filters: &[Expr],
+ filters: &[Expr],
) -> Result<Arc<dyn ExecutionPlan>> {
+ let predicate = if filters.is_empty() {
+ None
+ } else {
+ Some(
+ filters
Review comment:
Could you add a comment explaining the logic here? It isn't immediately
obvious to me.
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