Trait diesel::prelude::Expression[][src]

pub trait Expression {
    type SqlType: TypedExpressionType;
}
Expand description

Represents a typed fragment of SQL.

Apps should not need to implement this type directly, but it may be common to use this in where clauses. Libraries should consider using infix_operator! or postfix_operator! instead of implementing this directly.

Associated Types

The type that this expression represents in SQL

Implementations on Foreign Types

Implementors