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MixedAggregates

diesel::expression

Trait MixedAggregates 

Source 
pub trait MixedAggregates<Other> {
    type Output;
}
Expand description

Can two IsAggregate types appear in the same expression?

You should never implement this trait. It will eventually become a trait alias.

is_aggregate::Yes and is_aggregate::No can only appear with themselves or is_aggregate::Never. is_aggregate::Never can appear with anything.

Required Associated Types§

Source

type Output

What is the resulting IsAggregate type?

Dyn Compatibility§

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors§