LLDay commented on code in PR #20009:
URL: https://github.com/apache/datafusion/pull/20009#discussion_r2738540967
##########
datafusion/physical-plan/src/joins/hash_join/exec.rs:
##########
@@ -1384,6 +1386,55 @@ impl ExecutionPlan for HashJoinExec {
}
Ok(result)
}
+
+ fn physical_expressions<'a>(
+ &'a self,
+ ) -> Option<Box<dyn Iterator<Item = Arc<dyn PhysicalExpr>> + 'a>> {
+ self.filter
+ .as_ref()
+ .map(|f| Box::new(std::iter::once(Arc::clone(&f.expression))) as
Box<_>)
+ }
+
+ fn with_physical_expressions(
+ &self,
+ mut params: ReplacePhysicalExpr,
+ ) -> Result<Option<Arc<dyn ExecutionPlan>>> {
+ let expected_count = self.filter.iter().len();
+ let exprs_count = params.exprs.len();
+ assert_eq_or_internal_err!(
+ expected_count,
+ exprs_count,
+ "Inconsistent number of physical expressions for {}",
+ self.name()
+ );
+
+ let filter = self
+ .filter
+ .as_ref()
+ .zip(params.exprs.pop())
+ .map(|(f, expr)| {
+ JoinFilter::new(expr, f.column_indices.clone(),
Arc::clone(&f.schema))
+ });
+
+ Ok(Some(Arc::new(Self {
+ left: Arc::clone(&self.left),
+ right: Arc::clone(&self.right),
+ on: self.on.clone(),
+ filter,
+ join_type: self.join_type,
+ join_schema: Arc::clone(&self.join_schema),
+ left_fut: Arc::clone(&self.left_fut),
Review Comment:
I followed the behavior of the `with_new_children` method. It keeps dynamic
filters and `left_fut`, but recreates metrics. I added a note to the
`with_physical_expressions` method.
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