Struct datafusion_optimizer::eliminate_limit::EliminateLimit

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pub struct EliminateLimit;

Expand description

Optimization rule that replaces LIMIT 0 or LIMIT whose ancestor LIMIT’s skip is greater than or equal to current’s fetch with an LogicalPlan::EmptyRelation

Implementations

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impl EliminateLimit

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pub fn new() -> Self

Trait Implementations

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impl Default for EliminateLimit

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fn default() -> EliminateLimit

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

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impl OptimizerRule for EliminateLimit

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fn optimize(
 &self,
 plan: &LogicalPlan,
 optimizer_config: &OptimizerConfig
) -> Result<LogicalPlan>

Rewrite plan to an optimized form

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fn name(&self) -> &str

A human readable name for this optimizer rule

Auto Trait Implementations

impl RefUnwindSafe for EliminateLimit

impl Send for EliminateLimit

impl Sync for EliminateLimit

impl Unpin for EliminateLimit

impl UnwindSafe for EliminateLimit

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,

const: unstable · source

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

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

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into 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.

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impl<T> Same<T> for T

type Output = T

Should always be Self

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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

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

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

Performs the conversion.

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

fn vzip(self) -> V

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Struct datafusion_optimizer::eliminate_limit::EliminateLimit

Implementations

impl EliminateLimit

pub fn new() -> Self

Trait Implementations

impl Default for EliminateLimit

fn default() -> EliminateLimit

impl OptimizerRule for EliminateLimit

fn optimize(
    &self,
    plan: &LogicalPlan,
    optimizer_config: &OptimizerConfig
) -> Result<LogicalPlan>

fn name(&self) -> &str

Auto Trait Implementations

impl RefUnwindSafe for EliminateLimit

impl Send for EliminateLimit

impl Sync for EliminateLimit

impl Unpin for EliminateLimit

impl UnwindSafe for EliminateLimit

Blanket Implementations

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

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where
T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where
T: ?Sized,

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

impl<T> From<T> for T

fn from(t: T) -> T

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

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

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

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

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

fn vzip(self) -> V

impl<T> Allocation for T where
T: RefUnwindSafe + Send + Sync,

Struct datafusion_optimizer::eliminate_limit::EliminateLimit

Implementations

impl EliminateLimit

pub fn new() -> Self

Trait Implementations

impl Default for EliminateLimit

fn default() -> EliminateLimit

impl OptimizerRule for EliminateLimit

fn optimize( &self, plan: &LogicalPlan, optimizer_config: &OptimizerConfig) -> Result<LogicalPlan>

fn name(&self) -> &str

Auto Trait Implementations

impl RefUnwindSafe for EliminateLimit

impl Send for EliminateLimit

impl Sync for EliminateLimit

impl Unpin for EliminateLimit

impl UnwindSafe for EliminateLimit

Blanket Implementations

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

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

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

impl<T> From<T> for T

fn from(t: T) -> T

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

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

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

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

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

fn vzip(self) -> V

impl<T> Allocation for T where T: RefUnwindSafe + Send + Sync,

fn optimize(
&self,
plan: &LogicalPlan,
optimizer_config: &OptimizerConfig
) -> 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>,

impl<T> Allocation for T where
T: RefUnwindSafe + Send + Sync,