nealrichardson commented on code in PR #13397:
URL: https://github.com/apache/arrow/pull/13397#discussion_r910498423
##########
r/src/compute-exec.cpp:
##########
@@ -109,9 +109,50 @@ std::shared_ptr<arrow::RecordBatchReader> ExecPlan_run(
auto kv = strings_to_kvm(metadata);
out_schema = out_schema->WithMetadata(kv);
}
- return compute::MakeGeneratorReader(
+
+ std::pair<std::shared_ptr<compute::ExecPlan>,
std::shared_ptr<arrow::RecordBatchReader>>
+ out;
+ out.first = plan;
+ out.second = compute::MakeGeneratorReader(
out_schema, [stop_producing, plan, sink_gen] { return sink_gen(); },
gc_memory_pool());
+ return out;
+}
+
+// [[arrow::export]]
+std::shared_ptr<arrow::RecordBatchReader> ExecPlan_run(
Review Comment:
What does this function do if there is a UDF?
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