icexelloss commented on code in PR #34311: URL: https://github.com/apache/arrow/pull/34311#discussion_r1123680876
########## cpp/src/arrow/compute/exec/aggregate_node.cc: ########## @@ -326,46 +446,86 @@ class ScalarAggregateNode : public ExecNode, public TracedNode { } private: - Status Finish() { - auto scope = TraceFinish(); + Status ReconstructAggregates() { + const auto& input_schema = *inputs()[0]->output_schema(); + auto exec_ctx = plan()->query_context()->exec_context(); + for (size_t i = 0; i < kernels_.size(); ++i) { + std::vector<TypeHolder> in_types; + for (const auto& target : target_fieldsets_[i]) { + in_types.emplace_back(input_schema.field(target)->type().get()); + } + states_[i].resize(plan()->query_context()->max_concurrency()); Review Comment: I understand the state needs to be reset - my point is that we don't need to resize this because different segments should not change the size here -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: github-unsubscr...@arrow.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org