Struct polars_io::export::ParquetStatistics

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pub struct ParquetStatistics {
    pub null_count: Count,
    pub distinct_count: Count,
    pub min_value: Box<dyn Array + 'static, Global>,
    pub max_value: Box<dyn Array + 'static, Global>,
}

Expand description

Arrow-deserialized parquet Statistics of a file

Fields

null_count: Count

number of nulls.

distinct_count: Count

number of dictinct values

min_value: Box<dyn Array + 'static, Global>

Minimum

max_value: Box<dyn Array + 'static, Global>

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<Statistics> 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 ==. Read more

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

This method tests for !=.

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impl StructuralPartialEq for Statistics

Auto Trait Implementations

impl !RefUnwindSafe for Statistics

impl Send for Statistics

impl Sync for Statistics

impl Unpin for Statistics

impl !UnwindSafe for Statistics

Blanket Implementations

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impl<T> Any for T where
T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> Pointable for T

const ALIGN: usize = mem::align_of::()

The alignment of pointer.

type Init = T

The type for initializers.

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

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

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impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct polars_io::export::ParquetStatistics

Fields

Trait Implementations

impl Debug for Statistics

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

impl From<MutableStatistics> for Statistics

fn from(s: MutableStatistics) -> Statistics

impl PartialEq<Statistics> for Statistics

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

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

impl StructuralPartialEq for Statistics

Auto Trait Implementations

impl !RefUnwindSafe for Statistics

impl Send for Statistics

impl Sync for Statistics

impl Unpin for Statistics

impl !UnwindSafe for Statistics

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

fn into(self) -> U

impl<T> Pointable for T

const ALIGN: usize = mem::align_of::()

type Init = T

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

unsafe fn deref<'a>(ptr: usize) -> &'a T

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

unsafe fn drop(ptr: usize)

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,