Enum datafusion::physical_plan::hash_aggregate::AggregateMode

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pub enum AggregateMode {
    Partial,
    Final,
    FinalPartitioned,
}

Expand description

Hash aggregate modes

Variants

`Partial`

Partial aggregate that can be applied in parallel across input partitions

`Final`

Final aggregate that produces a single partition of output

`FinalPartitioned`

Final aggregate that works on pre-partitioned data.

This requires the invariant that all rows with a particular grouping key are in the same partitions, such as is the case with Hash repartitioning on the group keys. If a group key is duplicated, duplicate groups would be produced

Trait Implementations

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impl Clone for AggregateMode

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fn clone(&self) -> AggregateMode

Returns a copy of the value. Read more

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

Performs copy-assignment from source. Read more

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impl Debug for AggregateMode

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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 PartialEq<AggregateMode> for AggregateMode

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

This method tests for !=.

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impl StructuralPartialEq for AggregateMode

Auto Trait Implementations

impl RefUnwindSafe for AggregateMode

impl Send for AggregateMode

impl Sync for AggregateMode

impl Unpin for AggregateMode

impl UnwindSafe for AggregateMode

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<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> Same<T> for T

type Output = T

Should always be Self

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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, 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.

Enum datafusion::physical_plan::hash_aggregate::AggregateMode

Variants

Partial

Final

FinalPartitioned

Trait Implementations

impl Clone for AggregateMode

fn clone(&self) -> AggregateMode

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

impl Debug for AggregateMode

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

impl PartialEq<AggregateMode> for AggregateMode

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

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

impl Copy for AggregateMode

impl Eq for AggregateMode

impl StructuralEq for AggregateMode

impl StructuralPartialEq for AggregateMode

Auto Trait Implementations

impl RefUnwindSafe for AggregateMode

impl Send for AggregateMode

impl Sync for AggregateMode

impl Unpin for AggregateMode

impl UnwindSafe for AggregateMode

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<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> Same<T> for T

type Output = T

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>

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

pub fn vzip(self) -> V

`Partial`

`Final`

`FinalPartitioned`

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<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>,

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