Enum polars_io::parquet::Compression[−]

pub enum Compression {
    Uncompressed,
    Snappy,
    Gzip,
    Lzo,
    Brotli,
    Lz4,
    Zstd,
}

This is supported on crate feature feature only.

Variants

Uncompressed

Snappy

Gzip

Lzo

Brotli

Lz4

Zstd

Trait Implementations

impl Clone for Compression

pub fn clone(&self) -> Compression

Returns a copy of the value. Read more

1.0.0[src]

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

Performs copy-assignment from source. Read more

impl Debug for Compression

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

Formats the value using the given formatter. Read more

impl Hash for Compression

pub fn hash<H>(&self, state: &mut H) where
__H: Hasher,

Feeds this value into the given Hasher. Read more

1.3.0[src]

fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,

Feeds a slice of this type into the given Hasher. Read more

impl PartialEq<Compression> for Compression

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

This method tests for self and other values to be equal, and is used by ==. Read more

1.0.0[src]

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

This method tests for !=.

impl TryFrom<CompressionCodec> for Compression

type Error = ParquetError

The type returned in the event of a conversion error.

pub fn try_from(
codec: CompressionCodec
) -> Result<Compression, <Compression as TryFrom<CompressionCodec>>::Error>

Performs the conversion.

impl Copy for Compression

impl Eq for Compression

impl StructuralEq for Compression

impl StructuralPartialEq for Compression

Auto Trait Implementations

impl RefUnwindSafe for Compression

impl Send for Compression

impl Sync for Compression

impl Unpin for Compression

impl UnwindSafe for Compression

Blanket Implementations

[src]

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

[src]

pub 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,

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pub 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,

[src]

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

Mutably borrows from an owned value. Read more

[src]

impl<T> CallHasher for T where
T: Hash + ?Sized,

[src]

pub default fn get_hash<H, B>(value: &H, build_hasher: &B) -> u64 where
H: Hash + ?Sized,
B: BuildHasher,

[src]

impl<Q, K> Equivalent<K> for Q where
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,

[src]

pub fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.

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impl<T> From<T> for T

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pub fn from(t: T) -> T

Performs the conversion.

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

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pub fn into(self) -> U

Performs the conversion.

impl<T> Pointable for T

pub const ALIGN: usize

The alignment of pointer.

type Init = T

The type for initializers.

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

Initializes a with the given initializer. Read more

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

Dereferences the given pointer. Read more

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

Mutably dereferences the given pointer. Read more

pub unsafe fn drop(ptr: usize)

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

[src]

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

type Owned = T

The resulting type after obtaining ownership.

[src]

pub fn to_owned(&self) -> T

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

[src]

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

🔬 This is a nightly-only experimental API. (toowned_clone_into)

recently added

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

[src]

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

type Error = Infallible

The type returned in the event of a conversion error.

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pub 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.

[src]

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

Performs the conversion.

Enum polars_io::parquet::Compression[−]

Variants

Trait Implementations

impl Clone for Compression

pub fn clone(&self) -> Compression

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

impl Debug for Compression

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

impl Hash for Compression

pub fn hash<__H>(&self, state: &mut __H) where __H: Hasher,

fn hash_slice<H>(data: &[Self], state: &mut H) where H: Hasher,

impl PartialEq<Compression> for Compression

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

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

impl TryFrom<CompressionCodec> for Compression

type Error = ParquetError

pub fn try_from( codec: CompressionCodec) -> Result<Compression, <Compression as TryFrom<CompressionCodec>>::Error>

impl Copy for Compression

impl Eq for Compression

impl StructuralEq for Compression

impl StructuralPartialEq for Compression

Auto Trait Implementations

impl RefUnwindSafe for Compression

impl Send for Compression

impl Sync for Compression

impl Unpin for Compression

impl UnwindSafe for Compression

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

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

pub fn borrow(&self) -> &T

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

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

impl<T> CallHasher for T where T: Hash + ?Sized,

pub default fn get_hash<H, B>(value: &H, build_hasher: &B) -> u64 where H: Hash + ?Sized, B: BuildHasher,

impl<Q, K> Equivalent<K> for Q where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

pub fn equivalent(&self, key: &K) -> bool

impl<T> From<T> for T

pub fn from(t: T) -> T

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

pub fn into(self) -> U

impl<T> Pointable for T

pub const ALIGN: usize

type Init = T

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

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

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

pub unsafe fn drop(ptr: usize)

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

type Owned = T

pub fn to_owned(&self) -> T

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

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

type Error = Infallible

pub 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

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

pub fn hash<H>(&self, state: &mut H) where
__H: Hasher,

fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,

pub fn try_from(
codec: CompressionCodec
) -> Result<Compression, <Compression as TryFrom<CompressionCodec>>::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> CallHasher for T where
T: Hash + ?Sized,

pub default fn get_hash<H, B>(value: &H, build_hasher: &B) -> u64 where
H: Hash + ?Sized,
B: BuildHasher,

impl<Q, K> Equivalent<K> for Q where
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,

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>,