westonpace commented on code in PR #14663:
URL: https://github.com/apache/arrow/pull/14663#discussion_r1032885179
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cpp/src/arrow/dataset/file_base.h:
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@@ -108,6 +115,9 @@ class ARROW_DS_EXPORT FileSource : public
util::EqualityComparable<FileSource> {
/// \brief Get a RandomAccessFile which views this file source
Result<std::shared_ptr<io::RandomAccessFile>> Open() const;
+ /// \brief Get the size (in bytes) of the file or buffer
Review Comment:
Ah, I misunderstood and thought we were talking about a different size.
This size could pose a problem for compressed streams. It should ideally be
the uncompressed size but I don't think that is easily available.
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