parquet::column::writer

Struct PageMetrics

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struct PageMetrics {
    num_buffered_values: u32,
    num_buffered_rows: u32,
    num_page_nulls: u64,
    repetition_level_histogram: Option<LevelHistogram>,
    definition_level_histogram: Option<LevelHistogram>,
}

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§num_buffered_values: u32§num_buffered_rows: u32§num_page_nulls: u64§repetition_level_histogram: Option<LevelHistogram>§definition_level_histogram: Option<LevelHistogram>

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impl PageMetrics

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fn new() -> Self

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fn with_repetition_level_histogram(self, max_level: i16) -> Self

Initialize the repetition level histogram

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fn with_definition_level_histogram(self, max_level: i16) -> Self

Initialize the definition level histogram

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fn new_page(&mut self)

Resets the state of this PageMetrics to the initial state. If histograms have been initialized their contents will be reset to zero.

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fn update_repetition_level_histogram(&mut self, levels: &[i16])

Updates histogram values using provided repetition levels

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fn update_definition_level_histogram(&mut self, levels: &[i16])

Updates histogram values using provided definition levels

Trait Implementations§

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impl Default for PageMetrics

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fn default() -> PageMetrics

Returns the “default value” for a type. Read more

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