icexelloss commented on code in PR #34311:
URL: https://github.com/apache/arrow/pull/34311#discussion_r1126714774
##########
cpp/src/arrow/compute/exec/aggregate_node.cc:
##########
@@ -326,10 +437,22 @@ class ScalarAggregateNode : public ExecNode, public
TracedNode {
}
private:
- Status Finish() {
- auto scope = TraceFinish();
+ Status ResetAggregates() {
+ auto exec_ctx = plan()->query_context()->exec_context();
+ for (size_t i = 0; i < kernels_.size(); ++i) {
+ const std::vector<TypeHolder>& in_types = in_typesets_[i];
+ states_[i].resize(plan()->query_context()->max_concurrency());
+ KernelContext kernel_ctx{exec_ctx};
+ RETURN_NOT_OK(Kernel::InitAll(
+ &kernel_ctx, KernelInitArgs{kernels_[i], in_types,
aggs_[i].options.get()},
+ &states_[i]));
+ }
+ return Status::OK();
+ }
+
+ Status OutputResult(bool is_last = false) {
ExecBatch batch{{}, 1};
- batch.values.resize(kernels_.size());
+ batch.values.resize(kernels_.size() + segment_field_ids_.size());
Review Comment:
I see
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