Enum polars_core::datatypes::DataType

source · [−]

pub enum DataType {
Show 22 variants    Boolean,
    UInt8,
    UInt16,
    UInt32,
    UInt64,
    Int8,
    Int16,
    Int32,
    Int64,
    Float32,
    Float64,
    Utf8,
    Date,
    Datetime(TimeUnit, Option<TimeZone>),
    Duration(TimeUnit),
    Time,
    List(Box<DataType>),
    Object(&'static str),
    Null,
    Categorical(Option<Arc<RevMapping>>),
    Struct(Vec<Field>),
    Unknown,
}

Variants

`Boolean`

`UInt8`

`UInt16`

`UInt32`

`UInt64`

`Int8`

`Int16`

`Int32`

`Int64`

`Float32`

`Float64`

`Utf8`

String data

`Date`

A 32-bit date representing the elapsed time since UNIX epoch (1970-01-01) in days (32 bits).

`Datetime(TimeUnit, Option<TimeZone>)`

A 64-bit date representing the elapsed time since UNIX epoch (1970-01-01) in milliseconds (64 bits).

`Duration(TimeUnit)`

`Time`

A 64-bit time representing the elapsed time since midnight in nanoseconds

`List(Box<DataType>)`

`Object(&'static str)`

A generic type that can be used in a Series &’static str can be used to determine/set inner type

`Null`

`Categorical(Option<Arc<RevMapping>>)`

`Struct(Vec<Field>)`

`Unknown`

Implementations

impl DataType

pub fn inner_dtype(&self) -> Option<&DataType>

pub fn to_physical(&self) -> DataType

Convert to the physical data type

pub fn is_logical(&self) -> bool

Check if this DataType is a logical type

pub fn is_numeric(&self) -> bool

Check if this DataType is a numeric type

pub fn to_arrow(&self) -> ArrowDataType

Convert to an Arrow data type.

Trait Implementations

impl Clone for DataType

fn clone(&self) -> DataType

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 DataType

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

Formats the value using the given formatter. Read more

impl Display for DataType

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

Formats the value using the given formatter. Read more

impl<'a> From<&'_ AnyValue<'a>> for DataType

fn from(val: &AnyValue<'a>) -> Self

Performs the conversion.

impl From<&'_ DataType> for DataType

fn from(dt: &ArrowDataType) -> Self

Performs the conversion.

impl Hash for DataType

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

Feeds this value into the given Hasher. Read more

1.3.0 · source

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<DataType> for DataType

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

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

1.0.0 · source

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

This method tests for !=.

impl PartialEq<DataType> for DataType

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

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

1.0.0 · source

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

This method tests for !=.

impl Eq for DataType

Auto Trait Implementations

impl RefUnwindSafe for DataType

impl Send for DataType

impl Sync for DataType

impl Unpin for DataType

impl UnwindSafe for DataType

Blanket Implementations

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

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,

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

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

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> 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.

impl<T> Pointable for T

const ALIGN: usize

The alignment of pointer.

type Init = T

The type for initializers.

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

Initializes a with the given initializer. Read more

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

Dereferences the given pointer. Read more

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

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

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

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

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

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

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

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

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

impl<T> ToString for T where
T: Display + ?Sized,

default fn to_string(&self) -> String

Converts the given value to a String. Read more

impl<T, U> TryFrom<U> 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<U>>::Error>

Performs the conversion.

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.

const: unstable · source

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

Performs the conversion.

impl<V, T> VZip<V> for T where
V: MultiLane<T>,

fn vzip(self) -> V