2010YOUY01 commented on code in PR #24061:
URL: https://github.com/apache/datafusion/pull/24061#discussion_r3725845214
##########
datafusion/physical-plan/src/aggregates/hash_stream.rs:
##########
@@ -804,119 +1125,305 @@ impl FinalHashAggregateStream {
fn handle_reading_input(
&mut self,
cx: &mut Context<'_>,
- mut original_state: FinalHashAggregateState,
+ original_state: FinalHashAggregateState,
) -> FinalHashAggregateStateTransition {
- debug_assert!(matches!(
- &original_state,
- FinalHashAggregateState::ReadingInput { .. }
- ));
- debug_assert!(original_state.hash_table().is_building());
+ let FinalHashAggregateState::ReadingInput {
+ mut hash_table,
+ spill_context,
+ } = original_state
+ else {
+ return Self::break_with_internal_err(
+ "Final hash aggregate stream expected ReadingInput state",
+ );
+ };
match self.input.poll_next_unpin(cx) {
- Poll::Pending => ControlFlow::Break((Poll::Pending,
original_state)),
+ Poll::Pending => ControlFlow::Break((
+ Poll::Pending,
+ FinalHashAggregateState::ReadingInput {
+ hash_table,
+ spill_context,
+ },
+ )),
Poll::Ready(Some(Ok(batch))) => {
let elapsed_compute =
self.baseline_metrics.elapsed_compute().clone();
let timer = elapsed_compute.timer();
- let result =
original_state.hash_table_mut().aggregate_batch(&batch);
+ let result = hash_table.aggregate_batch(&batch);
timer.done();
if let Err(e) = result {
- return ControlFlow::Break((
- Poll::Ready(Some(Err(e))),
- original_state,
- ));
+ return Self::break_with_err(e);
}
- if self.hit_soft_group_limit(original_state.hash_table()) {
+ if self.hit_soft_group_limit(&hash_table) {
let timer = elapsed_compute.timer();
- let result =
self.start_output(original_state.hash_table_mut());
+ let result = self.start_output(&mut hash_table);
timer.done();
- if let Err(e) = result {
- return ControlFlow::Break((
- Poll::Ready(Some(Err(e))),
- original_state,
- ));
- }
-
- return
ControlFlow::Continue(original_state.into_producing_output());
+ return match result {
+ Ok(()) => ControlFlow::Continue(
+ FinalHashAggregateState::ProducingOutput {
hash_table },
+ ),
+ Err(e) => Self::break_with_err(e),
+ };
}
- if let Err(e) = self
- .reservation
- .try_resize(original_state.hash_table().memory_size())
- {
- return ControlFlow::Break((
- Poll::Ready(Some(Err(e))),
- original_state,
- ));
+ // Check memory reservation, and potentially spill.
+ let timer = elapsed_compute.timer();
Review Comment:
It seems not possible, `timer.done()` would take self.
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