Struct tidb_query_aggr::impl_max_min::AggFnStateExtremum[][src]

pub struct AggFnStateExtremum<T, E> where
    T: EvaluableRef<'static> + 'static + Ord,
    E: Extremum,
    VectorValue: VectorValueExt<T::EvaluableType>, 
{ extremum_value: Option<T::EvaluableType>, _phantom: PhantomData<E>, }

The state of the MAX/MIN aggregate function.

Fields

extremum_value: Option<T::EvaluableType>_phantom: PhantomData<E>

Implementations

impl<T, E> AggFnStateExtremum<T, E> where
    T: EvaluableRef<'static> + 'static + Ord,
    E: Extremum,
    VectorValue: VectorValueExt<T::EvaluableType>, 
[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::EvaluableType> + Ord
[src]

Trait Implementations

impl<T, E> ConcreteAggrFunctionState for AggFnStateExtremum<T, E> where
    T: EvaluableRef<'static> + 'static + Ord,
    E: Extremum,
    VectorValue: VectorValueExt<T::EvaluableType>, 
[src]

type ParameterType = T

impl<T: Debug, E: Debug> Debug for AggFnStateExtremum<T, E> where
    T: EvaluableRef<'static> + 'static + Ord,
    E: Extremum,
    VectorValue: VectorValueExt<T::EvaluableType>,
    T::EvaluableType: Debug
[src]

Auto Trait Implementations

impl<T, E> RefUnwindSafe for AggFnStateExtremum<T, E> where
    E: RefUnwindSafe,
    <T as EvaluableRef<'static>>::EvaluableType: RefUnwindSafe

impl<T, E> Send for AggFnStateExtremum<T, E>

impl<T, E> Sync for AggFnStateExtremum<T, E>

impl<T, E> Unpin for AggFnStateExtremum<T, E> where
    E: Unpin,
    <T as EvaluableRef<'static>>::EvaluableType: Unpin

impl<T, E> UnwindSafe for AggFnStateExtremum<T, E> where
    E: UnwindSafe,
    <T as EvaluableRef<'static>>::EvaluableType: UnwindSafe

Blanket Implementations

impl<F> AggrFunctionState for F where
    F: ConcreteAggrFunctionState
[src]

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
[src]

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

impl<T> BorrowMut<T> for T where
    T: ?Sized
[src]

impl<V, W> ConvertFrom<W> for V where
    W: ConvertTo<V>, 
[src]

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
[src]

impl<T> SendSyncUnwindSafe for T where
    T: Send + Sync + UnwindSafe + ?Sized
[src]

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

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

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]