Skip to main content

JoinIndexV2

Struct JoinIndexV2 

Source
pub struct JoinIndexV2 { /* private fields */ }
Expand description

Cached build-side join index for v2 hash join.

This captures the packed key bytes and bucketed hash table layout for the build (right) side, enabling reuse across repeated joins on the same relation + key columns.

Implementations§

Source§

impl JoinIndexV2

Source

pub fn right_keys(&self) -> &[usize]

Key columns (indices) this index was built for.

Source

pub fn right_num_rows(&self) -> u32

Row count of the build-side buffer at index build time.

Source

pub fn estimated_bytes(&self) -> u64

Approximate device memory used by this cached index.

Auto Trait Implementations§

Blanket Implementations§

Source§

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

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

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

Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

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

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

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

Performs the conversion.
§

impl<T> Allocation for T
where T: RefUnwindSafe + Send + Sync,