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IndexSpec

exoware_sql

Struct IndexSpec 

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pub struct IndexSpec { /* private fields */ }

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impl IndexSpec

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pub fn lexicographic( name: impl Into<String>, key_columns: Vec<String>, ) -> Result<Self, String>

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pub fn z_order( name: impl Into<String>, key_columns: Vec<String>, ) -> Result<Self, String>

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pub fn with_cover_columns(self, cover_columns: Vec<String>) -> Self

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pub fn with_layout(self, layout: IndexLayout) -> Self

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pub fn name(&self) -> &str

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pub fn key_columns(&self) -> &[String]

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pub fn cover_columns(&self) -> &[String]

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pub fn layout(&self) -> &IndexLayout

Trait Implementations§

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impl Clone for IndexSpec

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fn clone(&self) -> IndexSpec

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 IndexSpec

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

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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
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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> FromRef<T> for T
where T: Clone,

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Converts to this type from a reference to the input type.
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Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow only if self and other return Action::Follow. Read more
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where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow if either self or other returns Action::Follow. Read more
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type Error = Infallible

The type returned in the event of a conversion error.
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Performs the conversion.
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type Error = <U as TryFrom<T>>::Error

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