Struct datafusion::optimizer::to_approx_perc::ToApproxPerc

source · [−]

pub struct ToApproxPerc {}

Expand description

espression/function to approx_percentile optimizer rule

  SELECT F1(s)
  ...

  Into

  SELECT APPROX_PERCENTILE_CONT(s, lit(n)) as "F1(s)"
  ...

Implementations

source

impl ToApproxPerc

source

pub fn new() -> Self

Trait Implementations

source

impl Default for ToApproxPerc

source

fn default() -> Self

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

source

impl OptimizerRule for ToApproxPerc

source

fn optimize(
 &self,
 plan: &LogicalPlan,
 _execution_props: &ExecutionProps
) -> Result<LogicalPlan>

Rewrite plan to an optimized form

source

fn name(&self) -> &str

A human readable name for this optimizer rule

Auto Trait Implementations

impl RefUnwindSafe for ToApproxPerc

impl Send for ToApproxPerc

impl Sync for ToApproxPerc

impl Unpin for ToApproxPerc

impl UnwindSafe for ToApproxPerc

Blanket Implementations

source

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

source

pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

source

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

source

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

source

impl<T> From<T> for T

const: unstable · source

pub fn from(t: T) -> T

Performs the conversion.

source

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

const: unstable · source

pub fn into(self) -> U

Performs the conversion.

source

impl<T> Same<T> for T

type Output = T

Should always be Self

source

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.

source

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::optimizer::to_approx_perc::ToApproxPerc

Implementations

impl ToApproxPerc

pub fn new() -> Self

Trait Implementations

impl Default for ToApproxPerc

fn default() -> Self

impl OptimizerRule for ToApproxPerc

fn optimize(
    &self,
    plan: &LogicalPlan,
    _execution_props: &ExecutionProps
) -> Result<LogicalPlan>

fn name(&self) -> &str

Auto Trait Implementations

impl RefUnwindSafe for ToApproxPerc

impl Send for ToApproxPerc

impl Sync for ToApproxPerc

impl Unpin for ToApproxPerc

impl UnwindSafe for ToApproxPerc

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> 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, 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

Struct datafusion::optimizer::to_approx_perc::ToApproxPerc

Implementations

impl ToApproxPerc

pub fn new() -> Self

Trait Implementations

impl Default for ToApproxPerc

fn default() -> Self

impl OptimizerRule for ToApproxPerc

fn optimize( &self, plan: &LogicalPlan, _execution_props: &ExecutionProps) -> Result<LogicalPlan>

fn name(&self) -> &str

Auto Trait Implementations

impl RefUnwindSafe for ToApproxPerc

impl Send for ToApproxPerc

impl Sync for ToApproxPerc

impl Unpin for ToApproxPerc

impl UnwindSafe for ToApproxPerc

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> 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, 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 optimize(
&self,
plan: &LogicalPlan,
_execution_props: &ExecutionProps
) -> Result<LogicalPlan>

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

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>,