westonpace commented on a change in pull request #10289:
URL: https://github.com/apache/arrow/pull/10289#discussion_r640045424
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File path: cpp/src/parquet/schema.h
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@@ -268,7 +268,7 @@ class PARQUET_EXPORT GroupNode : public Node {
public:
// The field_id here is the default to use if it is not set in the
SchemaElement
static std::unique_ptr<Node> FromParquet(const void* opaque_element,
- NodeVector fields = {}, int
field_id = -1);
+ NodeVector fields = {});
Review comment:
I don't believe so. There is no reason they can't create the node and
then modify the `field_id` after the fact. The purpose of `FromParquet` is to
take the information in the `opaque_element` and put it into the `Node`. Why
allow the `field_id` to be overridden in this way but not allow it for `name`
or `repetition`?
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