Struct diesel::expression::dsl::Sum

pub struct Sum<T> { /* fields omitted */ }

Trait Implementations

impl<T: Copy> Copy for Sum<T>

impl<T: Clone> Clone for Sum<T>

fn clone(&self) -> Sum<T>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Debug> Debug for Sum<T>

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<ST, T> Expression for Sum<T> where ST: Foldable, T: Expression<SqlType=ST>

type SqlType = T::SqlType::Sum

impl<T, DB> QueryFragment<DB> for Sum<T> where T: Expression + QueryFragment<DB>,
        DB: Backend + HasSqlType<T::SqlType>

fn to_sql(&self, out: &mut DB::QueryBuilder) -> BuildQueryResult

fn collect_binds(&self, out: &mut DB::BindCollector) -> QueryResult<()>

fn is_safe_to_cache_prepared(&self) -> bool

impl<T> QueryId for Sum<T> where T: QueryId

type QueryId = Sum<T::QueryId>

fn has_static_query_id() -> bool

fn query_id() -> Option<TypeId>

impl<T, QS> SelectableExpression<QS> for Sum<T> where Sum<T>: Expression,
        T: SelectableExpression<QS>

type SqlTypeForSelect = Self::SqlType