felipecrv commented on code in PR #15083:
URL: https://github.com/apache/arrow/pull/15083#discussion_r1063891036
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cpp/src/arrow/compute/exec/aggregate.cc:
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@@ -121,21 +129,36 @@ Result<Datum> GroupBy(const std::vector<Datum>&
arguments, const std::vector<Dat
ExecSpanIterator argument_iterator;
ExecBatch args_batch;
- if (!arguments.empty()) {
+ if (!aggregates.empty()) {
ARROW_ASSIGN_OR_RAISE(args_batch, ExecBatch::Make(arguments));
// Construct and initialize HashAggregateKernels
- auto argument_types = args_batch.GetTypes();
+ std::vector<std::vector<TypeHolder>>
aggs_argument_types(aggregates.size());
+ {
+ // Contains the flattened list of aggregate arguments. We use the size of
+ // each Aggregate::target to re-group the aggregate argument types.
+ auto argument_types = args_batch.GetTypes();
Review Comment:
I fixed up the commit with the `std::move` as described above.
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