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ExplainExecutionDescriptor

Struct ExplainExecutionDescriptor 

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pub struct ExplainExecutionDescriptor { /* private fields */ }
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ExplainExecutionDescriptor

Stable scalar execution descriptor consumed by terminal EXPLAIN surfaces. This keeps execution authority projection centralized and avoids ad-hoc terminal-specific explain branching at call sites.

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impl ExplainExecutionDescriptor

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pub const fn access_strategy(&self) -> &ExplainAccessPath

Borrow projected access strategy.

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pub const fn covering_projection(&self) -> bool

Return whether projection can be served from index payload only.

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pub const fn aggregation(&self) -> AggregateKind

Return projected aggregate kind.

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pub const fn execution_mode(&self) -> ExplainExecutionMode

Return projected execution mode.

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pub const fn ordering_source(&self) -> ExplainExecutionOrderingSource

Return projected ordering source.

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pub const fn limit(&self) -> Option<u32>

Return projected execution limit.

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pub const fn cursor(&self) -> bool

Return whether continuation was applied.

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pub const fn node_properties(&self) -> &BTreeMap<String, Value>

Borrow projected execution node properties.

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impl Clone for ExplainExecutionDescriptor

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fn clone(&self) -> ExplainExecutionDescriptor

Returns a duplicate 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 ExplainExecutionDescriptor

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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 for ExplainExecutionDescriptor

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Eq for ExplainExecutionDescriptor

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impl StructuralPartialEq for ExplainExecutionDescriptor

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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,

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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,

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

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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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 for T

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type Output = T

Should always be Self
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V