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SplitPredicate

Struct SplitPredicate 

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pub struct SplitPredicate {
    pub sql_predicate: Predicate,
    pub remaining_predicate: Predicate,
}
Expand description

Result of splitting a predicate for PostgreSQL execution.

“Pushdown” refers to moving predicate evaluation from the application layer down to the database layer. Some predicates can be translated to SQL and executed by PostgreSQL (pushdown), while others must be evaluated in Rust after fetching results (e.g., future features like Ref traversal).

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§sql_predicate: Predicate

Predicate that can be pushed down to PostgreSQL WHERE clause

§remaining_predicate: Predicate

Predicate that must be evaluated in Rust after fetching (Predicate::True if nothing remains)

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impl SplitPredicate

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pub fn needs_post_filter(&self) -> bool

Check if there’s any remaining predicate that needs post-filtering

Trait Implementations§

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impl Clone for SplitPredicate

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fn clone(&self) -> SplitPredicate

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 SplitPredicate

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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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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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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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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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type Iter<'a> = Once<&'a T> where T: 'a

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fn iterable(&self) -> <T as Iterable<T>>::Iter<'_>

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type Output = T

Should always be Self
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fn as_borrowed(&self) -> &T

Borrows the value.
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Takes the value.
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where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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Performs the conversion.
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type Error = <U as TryFrom<T>>::Error

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