Tom-Newton commented on code in PR #39298:
URL: https://github.com/apache/arrow/pull/39298#discussion_r1431582767
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cpp/src/arrow/filesystem/azurefs.cc:
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@@ -798,7 +864,7 @@ class AzureFileSystem::Impl {
std::unique_ptr<DataLake::DataLakeServiceClient> datalake_service_client_;
std::unique_ptr<Blobs::BlobServiceClient> blob_service_client_;
- internal::HierarchicalNamespaceDetector hns_detector_;
+ HNSSupport cached_hns_support_ = HNSSupport::kUnknown;
Review Comment:
Personally, I liked having the separate detector class so that the cached
value could be kept private from the implementation of the filesystem to
prevent accidental misuse of the cache.
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