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ScalarCheck

drizzle_core::row

Struct ScalarCheck 

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pub struct ScalarCheck<W>(/* private fields */);
Expand description

GROUP BY proof: the scalar column is in the grouped list at the position W proves.

Auto Trait Implementations§

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impl<W> Freeze for ScalarCheck<W>
where PhantomData<W>: Freeze,

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impl<W> RefUnwindSafe for ScalarCheck<W>
where PhantomData<W>: RefUnwindSafe,

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impl<W> Send for ScalarCheck<W>
where PhantomData<W>: Send,

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impl<W> Sync for ScalarCheck<W>
where PhantomData<W>: Sync,

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impl<W> Unpin for ScalarCheck<W>
where PhantomData<W>: Unpin,

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impl<W> UnsafeUnpin for ScalarCheck<W>
where PhantomData<W>: UnsafeUnpin,

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impl<W> UnwindSafe for ScalarCheck<W>
where PhantomData<W>: 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<Joined, From> JoinKey<From, JoinReverse> for Joined
where From: Joinable<Joined> + ?Sized,

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fn pairs() -> &'static [(&'static str, &'static str)]

(joined_column, from_column) pairs the ON condition matches, in key order, read through Self::pair.
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fn pair(pair: &(&'static str, &'static str)) -> (&'static str, &'static str)

The (joined_column, from_column) names of pair.
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impl<List> ListIncludes<Nil, ()> for List

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impl<Mk> MarkerAggValidFor<()> for Mk

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impl<E, Grouped, W> SingleColGroupCheck<Grouped, ScalarCheck<W>> for E
where E: HasAggStatus<Status = AllScalar> + GroupByIdentity, Grouped: ListContains<<E as GroupByIdentity>::Identity, W>,

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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> TypeEq<T> for T