Struct datafusion_expr::WindowFrame

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pub struct WindowFrame {
    pub units: WindowFrameUnits,
    pub start_bound: WindowFrameBound,
    pub end_bound: WindowFrameBound,
}

Expand description

The frame-spec determines which output rows are read by an aggregate window function.

The ending frame boundary can be omitted (if the BETWEEN and AND keywords that surround the starting frame boundary are also omitted), in which case the ending frame boundary defaults to CURRENT ROW.

Fields

units: WindowFrameUnits

A frame type - either ROWS, RANGE or GROUPS

start_bound: WindowFrameBound

A starting frame boundary

end_bound: WindowFrameBound

An ending frame boundary

Trait Implementations

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impl Clone for WindowFrame

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fn clone(&self) -> WindowFrame

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 WindowFrame

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

Formats the value using the given formatter. Read more

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impl Default for WindowFrame

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fn default() -> Self

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

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impl Display for WindowFrame

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

Formats the value using the given formatter. Read more

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impl Hash for WindowFrame

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

Feeds this value into the given Hasher. Read more

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

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

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impl PartialEq<WindowFrame> for WindowFrame

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

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

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

This method tests for !=.

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impl PartialOrd<WindowFrame> for WindowFrame

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fn partial_cmp(&self, other: &WindowFrame) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more

1.0.0 · source

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

This method tests less than (for self and other) and is used by the < operator. Read more

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

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more

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

This method tests greater than (for self and other) and is used by the > operator. Read more

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

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more

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impl TryFrom<WindowFrame> for WindowFrame

type Error = DataFusionError

The type returned in the event of a conversion error.

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fn try_from(value: WindowFrame) -> Result<Self>

Performs the conversion.

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impl StructuralPartialEq for WindowFrame

Auto Trait Implementations

impl RefUnwindSafe for WindowFrame

impl Send for WindowFrame

impl Sync for WindowFrame

impl Unpin for WindowFrame

impl UnwindSafe for WindowFrame

Blanket Implementations

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

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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,

const: unstable · source

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,

const: unstable · source

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

Mutably borrows from an owned value. Read more

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

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

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

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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

const: unstable · source

pub fn from(t: T) -> T

Performs the conversion.

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

const: unstable · source

pub fn into(self) -> U

Performs the conversion.

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

type Owned = T

The resulting type after obtaining ownership.

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pub fn to_owned(&self) -> T

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

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pub 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

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

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pub default fn to_string(&self) -> String

Converts the given value to a String. Read more

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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

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.

const: unstable · source

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

Performs the conversion.

Struct datafusion_expr::WindowFrame

Fields

Trait Implementations

impl Clone for WindowFrame

fn clone(&self) -> WindowFrame

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

impl Debug for WindowFrame

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

impl Default for WindowFrame

fn default() -> Self

impl Display for WindowFrame

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

impl Hash for WindowFrame

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

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

impl PartialEq<WindowFrame> for WindowFrame

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

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

impl PartialOrd<WindowFrame> for WindowFrame

fn partial_cmp(&self, other: &WindowFrame) -> Option<Ordering>

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

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

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

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

impl TryFrom<WindowFrame> for WindowFrame

type Error = DataFusionError

fn try_from(value: WindowFrame) -> Result<Self>

impl Copy for WindowFrame

impl Eq for WindowFrame

impl StructuralEq for WindowFrame

impl StructuralPartialEq for WindowFrame

Auto Trait Implementations

impl RefUnwindSafe for WindowFrame

impl Send for WindowFrame

impl Sync for WindowFrame

impl Unpin for WindowFrame

impl UnwindSafe for WindowFrame

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

pub default fn to_string(&self) -> String

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>

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

pub fn vzip(self) -> V

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

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

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

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

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

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