pitrou commented on code in PR #13796:
URL: https://github.com/apache/arrow/pull/13796#discussion_r939501892
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cpp/src/arrow/filesystem/filesystem.h:
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@@ -132,6 +133,9 @@ struct ARROW_EXPORT FileSelector {
bool recursive;
/// The maximum number of subdirectories to recurse into.
int32_t max_recursion;
+ /// How many partitions should be processed in parallel. May not be
supported by all
+ /// implementations of `GetFileSystemGenerator`.
+ util::optional<int32_t> partitions_readahead;
Review Comment:
(I'm also curious why this needs to be exposed at all)
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