Struct arrow2::io::parquet::read::ColumnIndex

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pub struct ColumnIndex {
    pub min: Box<dyn Array>,
    pub max: Box<dyn Array>,
    pub null_count: UInt64Array,
}

Available on crate feature io_parquet only.

Expand description

Arrow-deserialized ColumnIndex containing the minimum and maximum value of every page from the column.

Invariants

The minimum and maximum are guaranteed to have the same logical type.

Fields

min: Box<dyn Array>

The minimum values in the pages

max: Box<dyn Array>

The maximum values in the pages

null_count: UInt64Array

The number of null values in the pages

Implementations

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impl ColumnIndex

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pub fn data_type(&self) -> &DataType

The DataType of the column index.

Trait Implementations

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impl Debug for ColumnIndex

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

Formats the value using the given formatter. Read more

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impl PartialEq<ColumnIndex> for ColumnIndex

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

This method tests for !=.

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impl StructuralPartialEq for ColumnIndex

Auto Trait Implementations

impl !RefUnwindSafe for ColumnIndex

impl Send for ColumnIndex

impl Sync for ColumnIndex

impl Unpin for ColumnIndex

impl !UnwindSafe for ColumnIndex

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.

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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 arrow2::io::parquet::read::ColumnIndex

Invariants

Fields

Implementations

impl ColumnIndex

pub fn data_type(&self) -> &DataType

Trait Implementations

impl Debug for ColumnIndex

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

impl PartialEq<ColumnIndex> for ColumnIndex

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

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

impl StructuralPartialEq for ColumnIndex

Auto Trait Implementations

impl !RefUnwindSafe for ColumnIndex

impl Send for ColumnIndex

impl Sync for ColumnIndex

impl Unpin for ColumnIndex

impl !UnwindSafe for ColumnIndex

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, 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>

Struct arrow2::io::parquet::read::ColumnIndex

Fields

Implementations

impl ColumnIndex

pub fn data_type(&self) -> &DataType

Trait Implementations

impl Debug for ColumnIndex

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

impl PartialEq<ColumnIndex> for ColumnIndex

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

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

impl StructuralPartialEq for ColumnIndex

Auto Trait Implementations

impl !RefUnwindSafe for ColumnIndex

impl Send for ColumnIndex

impl Sync for ColumnIndex

impl Unpin for ColumnIndex

impl !UnwindSafe for ColumnIndex

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, 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>,