diesel::sql_types

Trait Foldable

source 
pub trait Foldable: SingleValue {
    type Sum: SqlType + SingleValue;
    type Avg: SqlType + SingleValue;
}
Expand description

Represents SQL types which can be used with SUM and AVG

Required Associated Types§

source

type Sum: SqlType + SingleValue

The SQL type of sum(this_type)

source

type Avg: SqlType + SingleValue

The SQL type of avg(this_type)

Implementors§