n3world commented on a change in pull request #10509:
URL: https://github.com/apache/arrow/pull/10509#discussion_r652160176
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File path: cpp/src/arrow/csv/reader.h
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@@ -73,6 +73,9 @@ class ARROW_EXPORT StreamingReader : public RecordBatchReader
{
virtual Future<std::shared_ptr<RecordBatch>> ReadNextAsync() = 0;
+ /// \brief Returns the number of bytes which have been read by this reader
+ virtual int64_t bytes_read() const = 0;
Review comment:
I updated it to
```
/// - bytes skipped by `ReadOptions.skip_rows` will be counted as being
read before
/// any records are returned.
/// - bytes read while parsing the header will be counted as being read
before any
/// records are returned.
/// - bytes skipped by `ReadOptions.skip_rows_after_names` will be counted
after the
/// first batch is returned.
///
/// \return the number of bytes which have been read from the CSV stream
and returned to
/// caller
```
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