Struct arrow2::io::parquet::read::RowGroupMetaData

[−]

pub struct RowGroupMetaData { /* private fields */ }

Available on crate feature io_parquet only.

Expand description

Metadata for a row group.

Implementations

impl RowGroupMetaData

pub fn new(
 columns: Vec<ColumnChunkMetaData, Global>,
 num_rows: usize,
 total_byte_size: usize
) -> RowGroupMetaData

Create a new RowGroupMetaData

pub fn columns(&self) -> &[ColumnChunkMetaData]

Returns slice of column chunk metadata.

pub fn num_rows(&self) -> usize

Number of rows in this row group.

pub fn total_byte_size(&self) -> usize

Total byte size of all uncompressed column data in this row group.

pub fn compressed_size(&self) -> usize

Total size of all compressed column data in this row group.

Trait Implementations

impl Clone for RowGroupMetaData

fn clone(&self) -> RowGroupMetaData

Returns a copy of the value. Read more

1.0.0 · source

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

impl Debug for RowGroupMetaData

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

Formats the value using the given formatter. Read more

Auto Trait Implementations

impl RefUnwindSafe for RowGroupMetaData

impl Send for RowGroupMetaData

impl Sync for RowGroupMetaData

impl Unpin for RowGroupMetaData

impl UnwindSafe for RowGroupMetaData

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,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

source

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

source

fn from(t: T) -> T

Returns the argument unchanged.

source

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.

source

impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

source

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

source

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

source

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.

source

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::RowGroupMetaData

Implementations

impl RowGroupMetaData

pub fn new( columns: Vec<ColumnChunkMetaData, Global>, num_rows: usize, total_byte_size: usize) -> RowGroupMetaData

pub fn columns(&self) -> &[ColumnChunkMetaData]

pub fn num_rows(&self) -> usize

pub fn total_byte_size(&self) -> usize

pub fn compressed_size(&self) -> usize

Trait Implementations

impl Clone for RowGroupMetaData

fn clone(&self) -> RowGroupMetaData

fn clone_from(&mut self, source: &Self)

impl Debug for RowGroupMetaData

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

Auto Trait Implementations

impl RefUnwindSafe for RowGroupMetaData

impl Send for RowGroupMetaData

impl Sync for RowGroupMetaData

impl Unpin for RowGroupMetaData

impl UnwindSafe for RowGroupMetaData

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> DynClone for T where T: Clone,

fn __clone_box(&self, Private) -> *mut ()

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> ToOwned for T where T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

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(
columns: Vec<ColumnChunkMetaData, Global>,
num_rows: usize,
total_byte_size: usize
) -> RowGroupMetaData

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> DynClone for T where
T: Clone,

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

impl<T> ToOwned for T where
T: Clone,

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

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