Struct polars_lazy::dsl::functions::DatetimeArgs

pub struct DatetimeArgs {
    pub year: Expr,
    pub month: Expr,
    pub day: Expr,
    pub hour: Expr,
    pub minute: Expr,
    pub second: Expr,
    pub microsecond: Expr,
    pub time_unit: TimeUnit,
    pub time_zone: Option<String>,
    pub ambiguous: Expr,
}
Expand description

Arguments used by datetime in order to produce an Expr of Datetime

Construct a DatetimeArgs with DatetimeArgs::new(y, m, d). This will set the other time units to lit(0). You can then set the other fields with the with_* methods, or use with_hms to set hour, minute, and second all at once.

§Examples

use polars_plan::prelude::*;
// construct a DatetimeArgs set to July 20, 1969 at 20:17
let args = DatetimeArgs::new(lit(1969), lit(7), lit(20)).with_hms(lit(20), lit(17), lit(0));
// or
let args = DatetimeArgs::new(lit(1969), lit(7), lit(20)).with_hour(lit(20)).with_minute(lit(17));

// construct a DatetimeArgs using existing columns
let args = DatetimeArgs::new(lit(2023), col("month"), col("day"));

Fields§

§year: Expr§month: Expr§day: Expr§hour: Expr§minute: Expr§second: Expr§microsecond: Expr§time_unit: TimeUnit§time_zone: Option<String>§ambiguous: Expr

Implementations§

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impl DatetimeArgs

pub fn new(year: Expr, month: Expr, day: Expr) -> DatetimeArgs

Construct a new DatetimeArgs set to year, month, day

Other fields default to lit(0). Use the with_* methods to set them.

pub fn with_hms(self, hour: Expr, minute: Expr, second: Expr) -> DatetimeArgs

Set hour, minute, and second

Equivalent to

self.with_hour(hour)
    .with_minute(minute)
    .with_second(second)

pub fn with_year(self, n: Expr) -> DatetimeArgs

Set the year

pub fn with_month(self, n: Expr) -> DatetimeArgs

Set the month

pub fn with_day(self, n: Expr) -> DatetimeArgs

Set the day

pub fn with_hour(self, n: Expr) -> DatetimeArgs

Set the hour

pub fn with_minute(self, n: Expr) -> DatetimeArgs

Set the minute

pub fn with_second(self, n: Expr) -> DatetimeArgs

Set the second

pub fn with_microsecond(self, n: Expr) -> DatetimeArgs

Set the microsecond

pub fn with_time_unit(self, time_unit: TimeUnit) -> DatetimeArgs

pub fn with_time_zone(self, time_zone: Option<String>) -> DatetimeArgs

Available on crate feature timezones only.

pub fn with_ambiguous(self, ambiguous: Expr) -> DatetimeArgs

Available on crate feature timezones only.

Trait Implementations§

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impl Clone for DatetimeArgs

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fn clone(&self) -> DatetimeArgs

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
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impl Debug for DatetimeArgs

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

Formats the value using the given formatter. Read more
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impl Default for DatetimeArgs

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fn default() -> DatetimeArgs

Returns the “default value” for a type. Read more

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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,

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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,

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

Mutably borrows from an owned value. Read more
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impl<T> DynClone for T
where T: Clone,

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

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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fn vzip(self) -> V

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impl<T> Ungil for T
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