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ExpressionPredicate

grafeo_core::execution::operators

Struct ExpressionPredicate 

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pub struct ExpressionPredicate { /* private fields */ }
Expand description

An expression-based predicate that evaluates logical expressions.

This predicate can evaluate complex expressions involving variables, properties, and operators.

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impl ExpressionPredicate

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pub fn new( expression: FilterExpression, variable_columns: HashMap<String, usize>, store: Arc<LpgStore>, ) -> Self

Creates a new expression predicate.

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impl Predicate for ExpressionPredicate

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fn evaluate(&self, chunk: &DataChunk, row: usize) -> bool

Evaluates the predicate for a row.

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

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impl<T, U> Into<U> for 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> 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

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unsafe fn drop(ptr: usize)

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impl<T, U> TryFrom<U> for T
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type Error = Infallible

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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

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impl<T, U> TryInto<U> for T
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type Error = <U as TryFrom<T>>::Error

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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.