icexelloss commented on code in PR #35514:
URL: https://github.com/apache/arrow/pull/35514#discussion_r1213356646
##########
cpp/src/arrow/engine/substrait/extension_set.cc:
##########
@@ -979,23 +981,22 @@ ExtensionIdRegistry::SubstraitAggregateToArrow
DecodeBasicAggregate(
options = std::make_shared<compute::VarianceOptions>(ddof);
}
}
- fixed_arrow_func += arrow_function_name;
- ARROW_ASSIGN_OR_RAISE(compute::Expression arg, call.GetValueArg(0));
- const FieldRef* arg_ref = arg.field_ref();
- if (!arg_ref) {
- return Status::Invalid("Expected an aggregate call ", call.id().uri,
"#",
- call.id().name, " to have a direct
reference");
+ fixed_arrow_func += arrow_function_name;
+ std::vector<FieldRef> target;
+ for (int i = 0; i < call.size(); i++) {
+ ARROW_ASSIGN_OR_RAISE(compute::Expression arg, call.GetValueArg(i));
+ const FieldRef* arg_ref = arg.field_ref();
Review Comment:
@felipecrv My understanding is with `const FieldRef*` then the move below
has no effect / need to copy the data (because it is pointer to const FieldRef)
and with `FieldRef*` the move operator can then actually move the object and
not copying it?
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