ctsk commented on code in PR #15301:
URL: https://github.com/apache/datafusion/pull/15301#discussion_r2007064434
##########
datafusion/physical-plan/src/sorts/sort.rs:
##########
@@ -1067,35 +1067,53 @@ impl ExecutionPlan for SortExec {
) -> Result<SendableRecordBatchStream> {
trace!("Start SortExec::execute for partition {} of context session_id
{} and task_id {:?}", partition, context.session_id(), context.task_id());
- let mut input = self.input.execute(partition, Arc::clone(&context))?;
-
- let execution_options = &context.session_config().options().execution;
-
- trace!("End SortExec's input.execute for partition: {}", partition);
-
let sort_satisfied = self
.input
.equivalence_properties()
.ordering_satisfy_requirement(&LexRequirement::from(self.expr.clone()));
+ let input_exec = Arc::clone(&self.input);
+
+ let execution_options = &context.session_config().options().execution;
+
+ trace!("End SortExec's input.execute for partition: {}", partition);
+
match (sort_satisfied, self.fetch.as_ref()) {
- (true, Some(fetch)) => Ok(Box::pin(LimitStream::new(
- input,
- 0,
- Some(*fetch),
- BaselineMetrics::new(&self.metrics_set, partition),
- ))),
- (true, None) => Ok(input),
+ (true, Some(fetch)) => {
+ let input = input_exec.execute(partition,
Arc::clone(&context))?;
+ Ok(Box::pin(LimitStream::new(
+ input,
+ 0,
+ Some(*fetch),
+ BaselineMetrics::new(&self.metrics_set, partition),
+ )))
+ }
+ (true, None) => self.input.execute(partition,
Arc::clone(&context)),
(false, Some(fetch)) => {
+ let schema = input_exec.schema();
let mut topk = TopK::try_new(
partition,
- input.schema(),
+ schema,
self.expr.clone(),
*fetch,
context.session_config().batch_size(),
context.runtime_env(),
&self.metrics_set,
)?;
+ let input_exec = if context
+ .session_config()
+ .options()
+ .optimizer
+ .enable_dynamic_filter_pushdown
+ && input_exec.supports_dynamic_filter_pushdown()
+ {
+ input_exec
+
.push_down_dynamic_filter(topk.dynamic_filter_source())?
Review Comment:
On a conceptual level, does the pushdown logic of dynamic filters differ at
all from normal filters? Are there cases where one can be pushed down and the
other can not?
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