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PullExecutor

Struct PullExecutor 

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pub struct PullExecutor<'a, S: GraphStorage> { /* private fields */ }
Expand description

Pull-based read-only executor.

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impl<'a, S: GraphStorage> PullExecutor<'a, S>

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pub fn new(storage: &'a S, params: BTreeMap<String, LoraValue>) -> Self

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pub fn open_compiled( self, compiled: &'a CompiledQuery, ) -> ExecResult<Box<dyn RowSource + 'a>>
where S: 'a,

Open a streaming cursor for a compiled query.

Both no-UNION and UNION-bearing plans go through [compiled_to_streaming]: UNION drains its branches via [UnionSource] (memory unchanged from the previous buffered path; UNION is inherently O(N) before dedup), but the consumer side is now streaming so any downstream pipeline composes uniformly.

Auto Trait Implementations§

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impl<'a, S> Freeze for PullExecutor<'a, S>
where &'a S: Freeze,

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impl<'a, S> RefUnwindSafe for PullExecutor<'a, S>

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impl<'a, S> Send for PullExecutor<'a, S>
where &'a S: Send,

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impl<'a, S> Sync for PullExecutor<'a, S>
where &'a S: Sync,

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impl<'a, S> Unpin for PullExecutor<'a, S>
where &'a S: Unpin,

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impl<'a, S> UnsafeUnpin for PullExecutor<'a, S>

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impl<'a, S> UnwindSafe for PullExecutor<'a, S>

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

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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

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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> ⓘ

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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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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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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

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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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

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fn try_from(value: U) -> Result<T, !>

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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

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