parquet::arrow::arrow_reader::metrics

Struct ArrowReaderMetricsInner

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pub struct ArrowReaderMetricsInner {
    records_read_from_inner: AtomicUsize,
    records_read_from_cache: AtomicUsize,
}
Expand description

Holds the actual metrics for the Arrow reader.

Please see ArrowReaderMetrics for the public interface.

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§records_read_from_inner: AtomicUsize

Total number of records read from the inner reader (uncached)

§records_read_from_cache: AtomicUsize

Total number of records read from previously cached pages

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impl ArrowReaderMetricsInner

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pub(crate) fn new() -> Self

Creates a new instance of ArrowReaderMetricsInner

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impl Debug for ArrowReaderMetricsInner

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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