pub trait SupportsDefaultKeyword { }
Available on crate feature i-implement-a-third-party-backend-and-opt-into-breaking-changes only.
Expand description

A marker trait indicating if a DEFAULT like expression is supported as part of INSERT INTO clauses to indicate that a default value should be inserted at a specific position

If you use a custom type to specify specialized support for DEFAULT expressions implementing this trait opts in support for DEFAULT value expressions for inserts. Otherwise diesel will emulate this behaviour.