Struct parquet2::page::CompressedDataPage

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pub struct CompressedDataPage { /* private fields */ }

Expand description

A CompressedDataPage is compressed, encoded representation of a Parquet data page. It holds actual data and thus cloning it is expensive.

Implementations

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impl CompressedDataPage

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pub fn new(
 header: DataPageHeader,
 buffer: Vec<u8>,
 compression: Compression,
 uncompressed_page_size: usize,
 dictionary_page: Option<Arc<dyn DictPage>>,
 descriptor: ColumnDescriptor
) -> Self

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pub fn statistics(&self) -> Option<Result<Arc<dyn Statistics>>>

Decodes the raw statistics into a statistics

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pub fn descriptor(&self) -> &ColumnDescriptor

Trait Implementations

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impl Compressed for CompressedDataPage

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fn is_compressed(&self) -> bool

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impl Debug for CompressedDataPage

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

Formats the value using the given formatter. Read more

Auto Trait Implementations

impl !RefUnwindSafe for CompressedDataPage

impl Send for CompressedDataPage

impl Sync for CompressedDataPage

impl Unpin for CompressedDataPage

impl !UnwindSafe for CompressedDataPage

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 parquet2::page::CompressedDataPage

Implementations

impl CompressedDataPage

pub fn new(
    header: DataPageHeader,
    buffer: Vec<u8>,
    compression: Compression,
    uncompressed_page_size: usize,
    dictionary_page: Option<Arc<dyn DictPage>>,
    descriptor: ColumnDescriptor
) -> Self

pub fn header(&self) -> &DataPageHeader

pub fn uncompressed_size(&self) -> usize

pub fn compressed_size(&self) -> usize

pub fn compression(&self) -> Compression

pub fn num_values(&self) -> usize

pub fn statistics(&self) -> Option<Result<Arc<dyn Statistics>>>

pub fn descriptor(&self) -> &ColumnDescriptor

Trait Implementations

impl Compressed for CompressedDataPage

fn is_compressed(&self) -> bool

impl Debug for CompressedDataPage

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

Auto Trait Implementations

impl !RefUnwindSafe for CompressedDataPage

impl Send for CompressedDataPage

impl Sync for CompressedDataPage

impl Unpin for CompressedDataPage

impl !UnwindSafe for CompressedDataPage

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 parquet2::page::CompressedDataPage

Implementations

impl CompressedDataPage

pub fn new( header: DataPageHeader, buffer: Vec<u8>, compression: Compression, uncompressed_page_size: usize, dictionary_page: Option<Arc<dyn DictPage>>, descriptor: ColumnDescriptor) -> Self

pub fn header(&self) -> &DataPageHeader

pub fn uncompressed_size(&self) -> usize

pub fn compressed_size(&self) -> usize

pub fn compression(&self) -> Compression

pub fn num_values(&self) -> usize

pub fn statistics(&self) -> Option<Result<Arc<dyn Statistics>>>

pub fn descriptor(&self) -> &ColumnDescriptor

Trait Implementations

impl Compressed for CompressedDataPage

fn is_compressed(&self) -> bool

impl Debug for CompressedDataPage

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

Auto Trait Implementations

impl !RefUnwindSafe for CompressedDataPage

impl Send for CompressedDataPage

impl Sync for CompressedDataPage

impl Unpin for CompressedDataPage

impl !UnwindSafe for CompressedDataPage

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>

pub fn new(
header: DataPageHeader,
buffer: Vec<u8>,
compression: Compression,
uncompressed_page_size: usize,
dictionary_page: Option<Arc<dyn DictPage>>,
descriptor: ColumnDescriptor
) -> Self

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>,