Macro diesel::diesel_prefix_operator
source · [−]macro_rules! diesel_prefix_operator {
($name:ident, $operator:expr) => { ... };
($name:ident, $operator:expr, backend: $backend:ty) => { ... };
($name:ident, $operator:expr, $return_ty:ty) => { ... };
($name:ident, $operator:expr, $return_ty:ty, backend: $backend:ty) => { ... };
}
Expand description
Useful for libraries adding support for new SQL types. Apps should never need to call this.
Similar to diesel_infix_operator!
, but the generated type will only take
a single argument rather than two. The operator SQL will be placed before
the single argument. See diesel_infix_operator!
for example usage.