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RangeKey

Struct RangeKey 

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#[non_exhaustive]
pub struct RangeKey<'a> { /* private fields */ }
Expand description

One endpoint of a range scan, mirroring the relevant fields of MySQL’s key_range. The shim resolves the original key_part_map to the leading key bytes before crossing the FFI boundary, so key is already length-resolved; the borrow may not be retained past the callback that supplied it.

A range endpoint is optional at the call site — MySQL passes a null key_range for an open-ended bound — so the trait methods receive an Option<RangeKey<'_>> and None denotes “no bound on this side”.

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impl<'a> RangeKey<'a>

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pub fn key(&self) -> &[u8]

Leading key bytes that position the scan at this endpoint

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pub fn flag(&self) -> RKeyFunction

Search semantics MySQL attached to this endpoint

Trait Implementations§

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impl<'a> Clone for RangeKey<'a>

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fn clone(&self) -> RangeKey<'a>

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl<'a> Copy for RangeKey<'a>

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impl<'a> Debug for RangeKey<'a>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<'a> Freeze for RangeKey<'a>

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impl<'a> RefUnwindSafe for RangeKey<'a>

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impl<'a> Send for RangeKey<'a>

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impl<'a> Sync for RangeKey<'a>

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impl<'a> Unpin for RangeKey<'a>

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impl<'a> UnsafeUnpin for RangeKey<'a>

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impl<'a> UnwindSafe for RangeKey<'a>

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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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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> 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<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more