lidavidm commented on code in PR #13782:
URL: https://github.com/apache/arrow/pull/13782#discussion_r937904517
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cpp/src/arrow/dataset/dataset.h:
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@@ -59,6 +156,17 @@ class ARROW_DS_EXPORT Fragment : public
std::enable_shared_from_this<Fragment> {
virtual Result<RecordBatchGenerator> ScanBatchesAsync(
const std::shared_ptr<ScanOptions>& options) = 0;
+ /// \brief Inspect a fragment to learn basic information
Review Comment:
Sounds good to me.
The Parquet/Arrow readers, IIRC, let you open a file and provide an
already-parsed footer to at least skip that step.
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