pub fn not<T>(expr: T) -> not<T>where
T: Expression,
<T as Expression>::SqlType: BoolOrNullableBool,
Expand description
Creates a SQL NOT
expression
Example
use diesel::dsl::not;
let users_with_name = users.select(id).filter(name.eq("Sean"));
let users_not_with_name = users.select(id).filter(
not(name.eq("Sean")));
assert_eq!(Ok(1), users_with_name.first(connection));
assert_eq!(Ok(2), users_not_with_name.first(connection));