polars_lazy::dsl::function_expr

Enum StringFunction

pub enum StringFunction {
Show 41 variants ConcatHorizontal { delimiter: PlSmallStr, ignore_nulls: bool, }, ConcatVertical { delimiter: PlSmallStr, ignore_nulls: bool, }, Contains { literal: bool, strict: bool, }, CountMatches(bool), EndsWith, Extract(usize), ExtractAll, ExtractGroups { dtype: DataType, pat: PlSmallStr, }, Find { literal: bool, strict: bool, }, ToInteger(bool), LenBytes, LenChars, Lowercase, JsonDecode { dtype: Option<DataType>, infer_schema_len: Option<usize>, }, JsonPathMatch, Replace { n: i64, literal: bool, }, Reverse, PadStart { length: usize, fill_char: char, }, PadEnd { length: usize, fill_char: char, }, Slice, Head, Tail, HexEncode, HexDecode(bool), Base64Encode, Base64Decode(bool), StartsWith, StripChars, StripCharsStart, StripCharsEnd, StripPrefix, StripSuffix, SplitExact { n: usize, inclusive: bool, }, SplitN(usize), Strptime(DataType, StrptimeOptions), Split(bool), ToDecimal(usize), Titlecase, Uppercase, ZFill, EscapeRegex,
}

Variants§

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ConcatHorizontal

Available on crate feature concat_str only.

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§delimiter: PlSmallStr
§ignore_nulls: bool
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ConcatVertical

Available on crate feature concat_str only.

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§delimiter: PlSmallStr
§ignore_nulls: bool
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Contains

Available on crate feature regex only.

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§literal: bool
§strict: bool
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CountMatches(bool)

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EndsWith

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Extract(usize)

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ExtractAll

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ExtractGroups

Available on crate feature extract_groups only.

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§dtype: DataType
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Find

Available on crate feature regex only.

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§literal: bool
§strict: bool
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ToInteger(bool)

Available on crate feature string_to_integer only.
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LenBytes

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LenChars

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Lowercase

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JsonDecode

Available on crate feature extract_jsonpath only.

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§infer_schema_len: Option<usize>
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JsonPathMatch

Available on crate feature extract_jsonpath only.
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Replace

Available on crate feature regex only.

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§literal: bool
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Reverse

Available on crate feature string_reverse only.
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PadStart

Available on crate feature string_pad only.

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§length: usize
§fill_char: char
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PadEnd

Available on crate feature string_pad only.

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§length: usize
§fill_char: char
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Slice

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Head

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Tail

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HexEncode

Available on crate feature string_encoding only.
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HexDecode(bool)

Available on crate feature binary_encoding only.
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Base64Encode

Available on crate feature string_encoding only.
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Base64Decode(bool)

Available on crate feature binary_encoding only.
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StartsWith

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StripChars

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StripCharsStart

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StripCharsEnd

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StripPrefix

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StripSuffix

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SplitExact

Available on crate feature dtype-struct only.

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§inclusive: bool
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SplitN(usize)

Available on crate feature dtype-struct only.
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Strptime(DataType, StrptimeOptions)

Available on crate feature temporal only.
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Split(bool)

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ToDecimal(usize)

Available on crate feature dtype-decimal only.
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Titlecase

Available on crate feature nightly only.
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Uppercase

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ZFill

Available on crate feature string_pad only.
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EscapeRegex

Available on crate feature regex only.

Trait Implementations§

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impl Clone for StringFunction

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fn clone(&self) -> StringFunction

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 StringFunction

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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<'de> Deserialize<'de> for StringFunction

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fn deserialize<__D>( __deserializer: __D, ) -> Result<StringFunction, <__D as Deserializer<'de>>::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Display for StringFunction

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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 From<StringFunction> for FunctionExpr

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fn from(str: StringFunction) -> FunctionExpr

Converts to this type from the input type.
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impl From<StringFunction> for SpecialEq<Arc<dyn ColumnsUdf>>

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fn from(func: StringFunction) -> SpecialEq<Arc<dyn ColumnsUdf>>

Converts to this type from the input type.
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impl Hash for StringFunction

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

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, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq for StringFunction

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

Tests for self and other values to be equal, and is used by ==.
1.0.0 · Source§

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Serialize for StringFunction

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fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl Eq for StringFunction

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impl StructuralPartialEq for StringFunction

Auto Trait Implementations§

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,

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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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. 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<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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

Compare self to key and return true if they are equal.
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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

Checks if this value is equivalent to the given key. Read more
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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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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> ToCompactString for T
where T: Display,

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fn try_to_compact_string(&self) -> Result<CompactString, ToCompactStringError>

Fallible version of [ToCompactString::to_compact_string()] Read more
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fn to_compact_string(&self) -> CompactString

Converts the given value to a [CompactString]. 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> ToString for T
where T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. 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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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,

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impl<T> Ungil for T
where T: Send,