Struct sql_ops::join::no_partitioning_join::CpuHashJoin

source · [−]

pub struct CpuHashJoin<T: DeviceCopy + KeyAttribute> { /* private fields */ }

Expand description

CPU hash join implemented in C++.

See the module documentation above for details.

The build and probe_sum methods are simply wrappers for the corresponding implementations in CpuHashJoinable. The wrapping is necessary due to the specialization for each type T. See the documentation of CpuHashJoinable for details.

Implementations

source

impl<T> CpuHashJoin<T> where
T: DeviceCopy + KeyAttribute + CpuHashJoinable,

source

pub fn build(&mut self, join_attr: &[T], payload_attr: &[T]) -> Result<()>

Build a hash table on the CPU.

source

pub fn probe_sum(
 &mut self,
 join_attr: &[T],
 payload_attr: &[T],
 join_result: &mut u64
) -> Result<()>

Probe the hash table on the CPU and sum the payload attribute rows.

This effectively implements the SQL code:

SELECT SUM(s.payload_attr) FROM r JOIN s ON r.join_attr = s.join_attr

Trait Implementations

source

impl<T: Debug + DeviceCopy + KeyAttribute> Debug for CpuHashJoin<T>

source

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

Auto Trait Implementations

impl<T> RefUnwindSafe for CpuHashJoin<T> where
T: RefUnwindSafe,

impl<T> Send for CpuHashJoin<T> where
T: Send + Sync,

impl<T> Sync for CpuHashJoin<T> where
T: Send + Sync,

impl<T> Unpin for CpuHashJoin<T>

impl<T> UnwindSafe for CpuHashJoin<T> where
T: RefUnwindSafe,

Blanket Implementations

source

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

source

pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

source

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

const: unstable · source

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

source

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

const: unstable · source

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

Mutably borrows from an owned value. Read more

source

impl<T> From<T> for T

const: unstable · source

pub fn from(t: T) -> T

Returns the argument unchanged.

source

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

const: unstable · source

pub fn into(self) -> U

Calls U::from(self).

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

impl<T> Pointable for T

pub const ALIGN: usize

The alignment of pointer.

type Init = T

The type for initializers.

pub unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

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

Dereferences the given pointer. Read more

pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

pub unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

source

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

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

source

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

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct sql_ops::join::no_partitioning_join::CpuHashJoin

Implementations

impl<T> CpuHashJoin<T> where
T: DeviceCopy + KeyAttribute + CpuHashJoinable,

pub fn build(&mut self, join_attr: &[T], payload_attr: &[T]) -> Result<()>

pub fn probe_sum(
    &mut self,
    join_attr: &[T],
    payload_attr: &[T],
    join_result: &mut u64
) -> Result<()>

Trait Implementations

impl<T: Debug + DeviceCopy + KeyAttribute> Debug for CpuHashJoin<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Auto Trait Implementations

impl<T> RefUnwindSafe for CpuHashJoin<T> where
T: RefUnwindSafe,

impl<T> Send for CpuHashJoin<T> where
T: Send + Sync,

impl<T> Sync for CpuHashJoin<T> where
T: Send + Sync,

impl<T> Unpin for CpuHashJoin<T>

impl<T> UnwindSafe for CpuHashJoin<T> where
T: RefUnwindSafe,

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

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

pub fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

pub fn from(t: T) -> T

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

pub fn into(self) -> U

impl<T> Pointable for T

pub const ALIGN: usize

type Init = T

pub unsafe fn init(init: <T as Pointable>::Init) -> usize

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

pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

pub unsafe fn drop(ptr: usize)

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

type Error = Infallible

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

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

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

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

Struct sql_ops::join::no_partitioning_join::CpuHashJoin

Implementations

impl<T> CpuHashJoin<T> where T: DeviceCopy + KeyAttribute + CpuHashJoinable,

pub fn build(&mut self, join_attr: &[T], payload_attr: &[T]) -> Result<()>

pub fn probe_sum( &mut self, join_attr: &[T], payload_attr: &[T], join_result: &mut u64) -> Result<()>

Trait Implementations

impl<T: Debug + DeviceCopy + KeyAttribute> Debug for CpuHashJoin<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Auto Trait Implementations

impl<T> RefUnwindSafe for CpuHashJoin<T> where T: RefUnwindSafe,

impl<T> Send for CpuHashJoin<T> where T: Send + Sync,

impl<T> Sync for CpuHashJoin<T> where T: Send + Sync,

impl<T> Unpin for CpuHashJoin<T>

impl<T> UnwindSafe for CpuHashJoin<T> where T: RefUnwindSafe,

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

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

pub fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

pub fn from(t: T) -> T

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

pub fn into(self) -> U

impl<T> Pointable for T

pub const ALIGN: usize

type Init = T

pub unsafe fn init(init: <T as Pointable>::Init) -> usize

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

pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

pub unsafe fn drop(ptr: usize)

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

type Error = Infallible

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

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

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

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

impl<T> CpuHashJoin<T> where
T: DeviceCopy + KeyAttribute + CpuHashJoinable,

pub fn probe_sum(
&mut self,
join_attr: &[T],
payload_attr: &[T],
join_result: &mut u64
) -> Result<()>

impl<T> RefUnwindSafe for CpuHashJoin<T> where
T: RefUnwindSafe,

impl<T> Send for CpuHashJoin<T> where
T: Send + Sync,

impl<T> Sync for CpuHashJoin<T> where
T: Send + Sync,

impl<T> UnwindSafe for CpuHashJoin<T> where
T: RefUnwindSafe,

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

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

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

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

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

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