is_null

drizzle_core::expr

Function is_null 

Source 
pub fn is_null<'a, V, E>(expr: E) -> SQLExpr<'a, V, Bool, NonNull, Scalar>
where
    V: SQLParam + 'a,
    E: Expr<'a, V>,
Expand description

IS NULL check.

Returns a boolean expression checking if the value is NULL. Any expression type can be null-checked.