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JoinEngine

wasm_dbms::join

Struct JoinEngine 

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pub struct JoinEngine<'a, Schema, M, A = AccessControlList>
where
    Schema: DatabaseSchema<M, A> + ?Sized,
    M: MemoryProvider,
    A: AccessControl,
{ /* private fields */ }
Expand description

Engine that executes join queries using nested-loop join.

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impl<'a, Schema, M, A> JoinEngine<'a, Schema, M, A>
where Schema: DatabaseSchema<M, A> + ?Sized, M: MemoryProvider, A: AccessControl,

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pub fn new(schema: &'a Schema) -> Self

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impl<Schema, M, A> JoinEngine<'_, Schema, M, A>
where Schema: DatabaseSchema<M, A> + ?Sized, M: MemoryProvider, A: AccessControl,

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pub fn join( &self, dbms: &WasmDbmsDatabase<'_, M, A>, from_table: &str, query: Query, ) -> DbmsResult<Vec<Vec<(CandidColumnDef, Value)>>>

Executes a join query using nested-loop join.

Auto Trait Implementations§

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impl<'a, Schema, M, A> Freeze for JoinEngine<'a, Schema, M, A>
where Schema: ?Sized,

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impl<'a, Schema, M, A> RefUnwindSafe for JoinEngine<'a, Schema, M, A>
where Schema: RefUnwindSafe + ?Sized, M: RefUnwindSafe, A: RefUnwindSafe,

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impl<'a, Schema, M, A> Send for JoinEngine<'a, Schema, M, A>
where Schema: Sync + ?Sized, M: Send, A: Send,

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impl<'a, Schema, M, A> Sync for JoinEngine<'a, Schema, M, A>
where Schema: Sync + ?Sized, M: Sync, A: Sync,

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impl<'a, Schema, M, A> Unpin for JoinEngine<'a, Schema, M, A>
where M: Unpin, A: Unpin, Schema: ?Sized,

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impl<'a, Schema, M, A> UnsafeUnpin for JoinEngine<'a, Schema, M, A>
where Schema: ?Sized,

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impl<'a, Schema, M, A> UnwindSafe for JoinEngine<'a, Schema, M, A>
where Schema: RefUnwindSafe + ?Sized, M: UnwindSafe, A: UnwindSafe,

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> 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, 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.