Struct tidb_query_executors::util::hash_aggr_helper::HashAggregationHelper[][src]

pub struct HashAggregationHelper;

Implementations

impl HashAggregationHelper[src]

pub fn update_each_row_states_by_offset<Src: BatchExecutor>(
    entities: &mut Entities<Src>,
    input_physical_columns: &mut LazyBatchColumnVec,
    input_logical_rows: &[usize],
    states: &mut [Box<dyn AggrFunctionState>],
    states_offset_each_logical_row: &[usize]
) -> Result<()>
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Updates states for each row.

Each row may belong to a different group. States of all groups should be passed in altogether in a single vector and the states of each row should be specified by an offset vector.

Auto Trait Implementations

impl RefUnwindSafe for HashAggregationHelper

impl Send for HashAggregationHelper

impl Sync for HashAggregationHelper

impl Unpin for HashAggregationHelper

impl UnwindSafe for HashAggregationHelper

Blanket Implementations

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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impl<T> BorrowMut<T> for T where
    T: ?Sized
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impl<V, W> ConvertFrom<W> for V where
    W: ConvertTo<V>, 
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impl<T> From<T> for T[src]

impl<T> Instrument for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
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impl<T> Pointable for T[src]

type Init = T

The type for initializers.

impl<T> Same<T> for T[src]

type Output = T

Should always be Self

impl<T> Sealed<T> for T where
    T: ?Sized
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impl<T> SendSyncUnwindSafe for T where
    T: Send + Sync + UnwindSafe + ?Sized
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impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
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type Error = Infallible

The type returned in the event of a conversion error.

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

The type returned in the event of a conversion error.

impl<V, T> VZip<V> for T where
    V: MultiLane<T>, 
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