jorisvandenbossche commented on code in PR #14495:
URL: https://github.com/apache/arrow/pull/14495#discussion_r1019171828
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cpp/src/arrow/engine/substrait/expression_internal.cc:
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@@ -1019,13 +1020,16 @@ Result<std::unique_ptr<substrait::Expression>> ToProto(
if (call->function_name == "struct_field") {
// catch the special case of calls convertible to a StructField
+ const auto& field_options =
+ checked_cast<const compute::StructFieldOptions&>(*call->options);
+ const DataType& struct_type = *call->arguments[0].type();
+ DCHECK_EQ(struct_type.id(), Type::STRUCT);
Review Comment:
Thanks for the input @westonpace !
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