lidavidm commented on code in PR #12977:
URL: https://github.com/apache/arrow/pull/12977#discussion_r857616730
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cpp/src/arrow/dataset/discovery.cc:
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@@ -278,8 +278,13 @@ Result<std::shared_ptr<Dataset>>
FileSystemDatasetFactory::Finish(FinishOptions
}
std::vector<std::shared_ptr<FileFragment>> fragments;
+ std::string fixed_path;
for (const auto& info : files_) {
- auto fixed_path = StripPrefixAndFilename(info.path(),
options_.partition_base_dir);
+ if (partitioning->type_name() == "filename") {
+ fixed_path = StripPrefix(info.path(), options_.partition_base_dir);
+ } else {
+ fixed_path = StripPrefixAndFilename(info.path(),
options_.partition_base_dir);
+ }
Review Comment:
I wonder if we should make it the responsibility of the partitioning
implementation to strip the filename, instead of hardcoding an exception.
(After all, what if the user wants to define a custom filename-based
partitioning scheme?) Or we could pass both the path and the filename
separately to `partitioning->Parse`.
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