pitrou commented on code in PR #45789:
URL: https://github.com/apache/arrow/pull/45789#discussion_r2002671537
##########
cpp/src/arrow/acero/scalar_aggregate_node.cc:
##########
@@ -240,8 +240,8 @@ Status ScalarAggregateNode::InputReceived(ExecNode* input,
ExecBatch batch) {
// We add segment to the current segment group aggregation
auto exec_batch = full_batch.Slice(segment.offset, segment.length);
RETURN_NOT_OK(DoConsume(ExecSpan(exec_batch), thread_index));
- RETURN_NOT_OK(
- ExtractSegmenterValues(&segmenter_values_, exec_batch,
segment_field_ids_));
+ RETURN_NOT_OK(ExtractSegmenterValues(&GetLocalState()->segmenter_values,
exec_batch,
+ segment_field_ids_));
Review Comment:
Ah, so the data race occurred in the non-segmented case? It's weird that we
have to change the segmenting state to thread-local to fix that :)
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