Function tidb_query_expr::impl_control::if_null [−][src]
fn if_null<T: Evaluable + EvaluableRet>(
lhs: Option<&T>,
rhs: Option<&T>
) -> Result<Option<T>>
fn if_null<T: Evaluable + EvaluableRet>(
lhs: Option<&T>,
rhs: Option<&T>
) -> Result<Option<T>>