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Agg

qbrs_core::expr

Struct Agg 

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pub struct Agg<Op, C>(/* private fields */);
Expand description

The row key an aggregate over C is filed under: distinct per function and per column, so sum(a) and sum(b) don’t collide, and named after the column so a DTO field or a CTE column can match it.

Auto Trait Implementations§

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impl<Op, C> Freeze for Agg<Op, C>
where PhantomData<fn() -> (Op, C)>: Freeze,

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impl<Op, C> RefUnwindSafe for Agg<Op, C>
where PhantomData<fn() -> (Op, C)>: RefUnwindSafe,

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impl<Op, C> Send for Agg<Op, C>
where PhantomData<fn() -> (Op, C)>: Send,

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impl<Op, C> Sync for Agg<Op, C>
where PhantomData<fn() -> (Op, C)>: Sync,

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impl<Op, C> Unpin for Agg<Op, C>
where PhantomData<fn() -> (Op, C)>: Unpin,

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impl<Op, C> UnsafeUnpin for Agg<Op, C>
where PhantomData<fn() -> (Op, C)>: UnsafeUnpin,

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impl<Op, C> UnwindSafe for Agg<Op, C>
where PhantomData<fn() -> (Op, C)>: UnwindSafe,

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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impl<A, B> SameNameAs<B> for A
where A: Spelled, B: Spelled<Name = <A as Named>::Name>,

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impl<S> Superset<Nil, Nil> for S

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

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type Error = !

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, !>

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

Performs the conversion.
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impl<T> WrapNullable<NotNull> for T

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type Output = T