Enum datafusion_physical_expr::aggregate::build_in::AggregateFunction

source · [−]

pub enum AggregateFunction {
Show 18 variants    Count,
    Sum,
    Min,
    Max,
    Avg,
    ApproxDistinct,
    ArrayAgg,
    Variance,
    VariancePop,
    Stddev,
    StddevPop,
    Covariance,
    CovariancePop,
    Correlation,
    ApproxPercentileCont,
    ApproxPercentileContWithWeight,
    ApproxMedian,
    Grouping,
}

Expand description

Enum of all built-in aggregate functions

Variants

`Count`

count

`Sum`

sum

`Min`

min

`Max`

max

`Avg`

avg

`ApproxDistinct`

Approximate aggregate function

`ArrayAgg`

array_agg

`Variance`

Variance (Sample)

`VariancePop`

Variance (Population)

`Stddev`

Standard Deviation (Sample)

`StddevPop`

Standard Deviation (Population)

`Covariance`

Covariance (Sample)

`CovariancePop`

Covariance (Population)

`Correlation`

Correlation

`ApproxPercentileCont`

Approximate continuous percentile function

`ApproxPercentileContWithWeight`

Approximate continuous percentile function with weight

`ApproxMedian`

ApproxMedian

`Grouping`

Grouping

Trait Implementations

impl Clone for AggregateFunction

fn clone(&self) -> AggregateFunction

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 AggregateFunction

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

Formats the value using the given formatter. Read more

impl Display for AggregateFunction

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

Formats the value using the given formatter. Read more

impl FromStr for AggregateFunction

type Err = DataFusionError

The associated error which can be returned from parsing.

fn from_str(name: &str) -> Result<AggregateFunction, DataFusionError>

Parses a string s to return a value of this type. Read more

impl Hash for AggregateFunction

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,

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

impl PartialEq<AggregateFunction> for AggregateFunction

fn eq(&self, other: &AggregateFunction) -> 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 PartialOrd<AggregateFunction> for AggregateFunction

fn partial_cmp(&self, other: &AggregateFunction) -> 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

1.0.0 · source

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

1.0.0 · source

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

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

1.0.0 · source

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

impl Eq for AggregateFunction

impl StructuralEq for AggregateFunction

impl StructuralPartialEq for AggregateFunction

Auto Trait Implementations

impl RefUnwindSafe for AggregateFunction

impl Send for AggregateFunction

impl Sync for AggregateFunction

impl Unpin for AggregateFunction

impl UnwindSafe for AggregateFunction

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> Same<T> for T

type Output = T

Should always be Self

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

impl<T> Allocation for T where
T: RefUnwindSafe,