pub struct Never;
This expression is never aggregate, and can appear with any other expression, regardless of whether it is aggregate.
Examples of this are literals.
1 does not care about aggregation.
foo + 1 is always valid, regardless of whether
foo appears in the
group by clause or not.
Auto Trait Implementations§
impl RefUnwindSafe for Never
impl UnwindSafe for Never
self to an expression for Diesel’s query builder. Read more