Struct polars_io::parquet::metadata::ParquetStatistics

pub struct ParquetStatistics {
    pub null_count: Box<dyn Array>,
    pub distinct_count: Box<dyn Array>,
    pub min_value: Box<dyn Array>,
    pub max_value: Box<dyn Array>,
}
Available on crate feature parquet only.
Expand description

Arrow-deserialized parquet Statistics of a file

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§null_count: Box<dyn Array>

number of nulls. This is a [UInt64Array] for non-nested types

§distinct_count: Box<dyn Array>

number of dictinct values. This is a [UInt64Array] for non-nested types

§min_value: Box<dyn Array>

Minimum

§max_value: Box<dyn Array>

Maximum

Trait Implementations§

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impl Debug for Statistics

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

Formats the value using the given formatter. Read more
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impl From<MutableStatistics> for Statistics

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fn from(s: MutableStatistics) -> Statistics

Converts to this type from the input type.
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impl PartialEq for Statistics

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fn eq(&self, other: &Statistics) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl StructuralPartialEq for Statistics

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Gets the TypeId of self. Read more
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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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Mutably borrows from an owned value. Read more
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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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Calls U::from(self).

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Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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const ALIGN: usize = _

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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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Dereferences the given pointer. Read more
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type Output = T

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fn vzip(self) -> V

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