Struct tidb_query_aggr::impl_avg::AggrFnStateAvg[][src]

pub struct AggrFnStateAvg<T> where
    T: Summable,
    VectorValue: VectorValueExt<T>, 
{ sum: T, count: usize, }

The state of the AVG aggregate function.

Fields

sum: Tcount: usize

Implementations

impl<T> AggrFnStateAvg<T> where
    T: Summable,
    VectorValue: VectorValueExt<T>, 
[src]

pub fn new() -> Self[src]

fn update_concrete<'a, TT>(
    &mut self,
    ctx: &mut EvalContext,
    value: Option<TT>
) -> Result<()> where
    TT: EvaluableRef<'a, EvaluableType = T>, 
[src]

Trait Implementations

impl<T> ConcreteAggrFunctionState for AggrFnStateAvg<T> where
    T: Summable,
    VectorValue: VectorValueExt<T>, 
[src]

type ParameterType = &'static T

impl<T: Debug> Debug for AggrFnStateAvg<T> where
    T: Summable,
    VectorValue: VectorValueExt<T>, 
[src]

Auto Trait Implementations

impl<T> RefUnwindSafe for AggrFnStateAvg<T> where
    T: RefUnwindSafe

impl<T> Send for AggrFnStateAvg<T>

impl<T> Sync for AggrFnStateAvg<T>

impl<T> Unpin for AggrFnStateAvg<T> where
    T: Unpin

impl<T> UnwindSafe for AggrFnStateAvg<T> where
    T: UnwindSafe

Blanket Implementations

impl<F> AggrFunctionState for F where
    F: ConcreteAggrFunctionState
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impl<T, State> AggrFunctionStateUpdatePartial<T> for State where
    T: EvaluableRef<'static>,
    State: ConcreteAggrFunctionState
[src]

impl<T, State> AggrFunctionStateUpdatePartial<T> for State where
    T: EvaluableRef<'static>,
    State: ConcreteAggrFunctionState<ParameterType = T>, 
[src]

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>, 
[src]

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>, 
[src]