pub struct Column { /* private fields */ }

Implementations§

source§

impl Column

source

pub fn new( name: &str, data_type: &DataType, footer: &Arc<StripeFooter>, number_of_rows: u64 ) -> Self

source

pub fn dictionary_size(&self) -> usize

source

pub fn encoding(&self) -> ColumnEncoding

source

pub fn data_type(&self) -> &DataType

source

pub fn name(&self) -> &str

source

pub fn column_id(&self) -> u32

source

pub fn children(&self) -> Vec<Column>

source

pub fn read_stream<R: ChunkReader>( reader: &mut R, start: u64, length: u64 ) -> Result<Bytes>

source

pub async fn read_stream_async<R: AsyncChunkReader>( reader: &mut R, start: u64, length: u64 ) -> Result<Bytes>

Trait Implementations§

source§

impl Debug for Column

source§

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

Formats the value using the given formatter. Read more
source§

impl From<&Column> for Field

source§

fn from(value: &Column) -> Self

Converts to this type from the input type.
source§

impl From<Column> for Field

source§

fn from(value: Column) -> Self

Converts to this type from the input type.

Auto Trait Implementations§

§

impl Freeze for Column

§

impl RefUnwindSafe for Column

§

impl Send for Column

§

impl Sync for Column

§

impl Unpin for Column

§

impl UnwindSafe for Column

Blanket Implementations§

source§

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

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

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

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

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

source§

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

Mutably borrows from an owned value. Read more
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

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

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.

source§

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

§

type Error = Infallible

The type returned in the event of a conversion error.
source§

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

Performs the conversion.
source§

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

§

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

The type returned in the event of a conversion error.
source§

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

Performs the conversion.
source§

impl<T> Allocation for T
where T: RefUnwindSafe + Send + Sync,