Struct Expr

pub struct Expr<T, Kind = ScalarExpression> {
    pub node: ExprNode,
    /* private fields */
}

Fields§

§node: ExprNode

Implementations§

Applies a PostgreSQL aggregate FILTER (WHERE ...) clause.

Trait Implementations§

The resulting type after applying the + operator.

Performs the + operation. Read more

The resulting type after applying the + operator.

Performs the + operation. Read more

The resulting type after applying the + operator.

Performs the + operation. Read more

Returns a duplicate of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

The resulting type after applying the * operator.

Performs the * operation. Read more

The resulting type after applying the - operator.

Performs the - operation. Read more

The resulting type after applying the - operator.

Performs the - operation. Read more

The resulting type after applying the - operator.

Performs the - operation. Read more

Auto Trait Implementations§

Blanket Implementations§

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

Returns the argument unchanged.

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

Should always be Self

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

Uses borrowed data to replace owned data, usually by cloning. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more

Struct Expr Copy item path

Fields§

Implementations§

impl<T, Kind> Expr<T, Kind>

pub fn new(node: ExprNode) -> Self

impl<T> Expr<T, AggregateExpression>

pub fn filter(self, predicate: Expr<bool>) -> Expr<T>

impl<T, Kind> Expr<T, Kind>where T: 'static,

pub fn eq<V>(self, value: V) -> Expr<bool>where V: ColumnValue<T>,

pub fn eq_col<M2>(self, other: Column<M2, T>) -> Expr<bool>

pub fn ne<V>(self, value: V) -> Expr<bool>where V: ColumnValue<T>,

pub fn ne_col<M2>(self, other: Column<M2, T>) -> Expr<bool>

pub fn is_distinct_from_col<M2>(self, other: Column<M2, T>) -> Expr<bool>

pub fn is_not_distinct_from_col<M2>(self, other: Column<M2, T>) -> Expr<bool>

pub fn lt<V>(self, value: V) -> Expr<bool>where V: ColumnValue<T>,

pub fn lt_col<M2>(self, other: Column<M2, T>) -> Expr<bool>

pub fn le<V>(self, value: V) -> Expr<bool>where V: ColumnValue<T>,

pub fn le_col<M2>(self, other: Column<M2, T>) -> Expr<bool>

pub fn gt<V>(self, value: V) -> Expr<bool>where V: ColumnValue<T>,

pub fn gt_col<M2>(self, other: Column<M2, T>) -> Expr<bool>

pub fn ge<V>(self, value: V) -> Expr<bool>where V: ColumnValue<T>,

pub fn ge_col<M2>(self, other: Column<M2, T>) -> Expr<bool>

pub fn between<L, U>(self, low: L, high: U) -> Expr<bool>where L: ColumnValue<T>, U: ColumnValue<T>,

pub fn like<V>(self, pattern: V) -> Expr<bool>where V: ColumnValue<T>,

pub fn ilike<V>(self, pattern: V) -> Expr<bool>where V: ColumnValue<T>,

pub fn is_null(self) -> Expr<bool>

pub fn is_not_null(self) -> Expr<bool>

pub fn in_<I, V>(self, values: I) -> Expr<bool>where I: IntoIterator<Item = V>, V: ColumnValue<T>,

impl<Kind> Expr<bool, Kind>

pub fn and(self, other: Expr<bool>) -> Expr<bool>

pub fn or(self, other: Expr<bool>) -> Expr<bool>

pub fn not(self) -> Expr<bool>

Trait Implementations§

impl<Kind> Add<Expr<PgInterval, Kind>> for NaiveDateTime

type Output = Expr<NaiveDateTime>

fn add(self, rhs: Expr<PgInterval, Kind>) -> Self::Output

impl<Kind> Add<Expr<PgInterval, Kind>> for DateTime<Utc>

type Output = Expr<DateTime<Utc>>

fn add(self, rhs: Expr<PgInterval, Kind>) -> Self::Output

impl<Lhs, RhsExpr, Kind> Add<RhsExpr> for Expr<Lhs, Kind>where RhsExpr: ExprOperand, Lhs: SqlAdd<RhsExpr::Value>,

type Output = Expr<<Lhs as SqlAdd<<RhsExpr as ExprOperand>::Value>>::Output>

fn add(self, rhs: RhsExpr) -> Self::Output

impl<T: Clone, Kind: Clone> Clone for Expr<T, Kind>

fn clone(&self) -> Expr<T, Kind>

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

impl<T: Debug, Kind: Debug> Debug for Expr<T, Kind>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

impl<T, Kind> ExprOperand for Expr<T, Kind>

type Value = T

fn into_operand_expr(self) -> Expr<Self::Value>

impl<T, Kind> IntoExpr<T> for Expr<T, Kind>

fn into_expr(self) -> Expr<T>

impl<T, Kind> IntoOrderExpr for Expr<T, Kind>

fn into_order_expr(self) -> OrderExpr

impl<Lhs, RhsExpr, Kind> Mul<RhsExpr> for Expr<Lhs, Kind>where RhsExpr: ExprOperand, Lhs: SqlMul<RhsExpr::Value>,

type Output = Expr<<Lhs as SqlMul<<RhsExpr as ExprOperand>::Value>>::Output>

fn mul(self, rhs: RhsExpr) -> Self::Output

impl<Kind> Sub<Expr<PgInterval, Kind>> for NaiveDateTime

type Output = Expr<NaiveDateTime>

fn sub(self, rhs: Expr<PgInterval, Kind>) -> Self::Output

impl<Kind> Sub<Expr<PgInterval, Kind>> for DateTime<Utc>

type Output = Expr<DateTime<Utc>>

fn sub(self, rhs: Expr<PgInterval, Kind>) -> Self::Output

impl<Lhs, RhsExpr, Kind> Sub<RhsExpr> for Expr<Lhs, Kind>where RhsExpr: ExprOperand, Lhs: SqlSub<RhsExpr::Value>,

type Output = Expr<<Lhs as SqlSub<<RhsExpr as ExprOperand>::Value>>::Output>

fn sub(self, rhs: RhsExpr) -> Self::Output

Auto Trait Implementations§

impl<T, Kind> Freeze for Expr<T, Kind>where PhantomData<(T, Kind)>: Freeze,

impl<T, Kind> RefUnwindSafe for Expr<T, Kind>where PhantomData<(T, Kind)>: RefUnwindSafe,

impl<T, Kind> Send for Expr<T, Kind>where PhantomData<(T, Kind)>: Send,

impl<T, Kind> Sync for Expr<T, Kind>where PhantomData<(T, Kind)>: Sync,

impl<T, Kind> Unpin for Expr<T, Kind>where PhantomData<(T, Kind)>: Unpin,

impl<T, Kind> UnsafeUnpin for Expr<T, Kind>where PhantomData<(T, Kind)>: UnsafeUnpin,

impl<T, Kind> UnwindSafe for Expr<T, Kind>where PhantomData<(T, Kind)>: UnwindSafe,

Blanket Implementations§

impl<T> Any for Twhere T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for Twhere T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere T: ?Sized,

Struct Expr

impl<T, Kind> Expr<T, Kind>
where T: 'static,

pub fn eq<V>(self, value: V) -> Expr<bool>
where V: ColumnValue<T>,

pub fn ne<V>(self, value: V) -> Expr<bool>
where V: ColumnValue<T>,

pub fn lt<V>(self, value: V) -> Expr<bool>
where V: ColumnValue<T>,

pub fn le<V>(self, value: V) -> Expr<bool>
where V: ColumnValue<T>,

pub fn gt<V>(self, value: V) -> Expr<bool>
where V: ColumnValue<T>,

pub fn ge<V>(self, value: V) -> Expr<bool>
where V: ColumnValue<T>,

pub fn between<L, U>(self, low: L, high: U) -> Expr<bool>
where L: ColumnValue<T>, U: ColumnValue<T>,

pub fn like<V>(self, pattern: V) -> Expr<bool>
where V: ColumnValue<T>,

pub fn ilike<V>(self, pattern: V) -> Expr<bool>
where V: ColumnValue<T>,

pub fn in_<I, V>(self, values: I) -> Expr<bool>
where I: IntoIterator<Item = V>, V: ColumnValue<T>,

impl<Lhs, RhsExpr, Kind> Add<RhsExpr> for Expr<Lhs, Kind>
where RhsExpr: ExprOperand, Lhs: SqlAdd<RhsExpr::Value>,

impl<Lhs, RhsExpr, Kind> Mul<RhsExpr> for Expr<Lhs, Kind>
where RhsExpr: ExprOperand, Lhs: SqlMul<RhsExpr::Value>,

impl<Lhs, RhsExpr, Kind> Sub<RhsExpr> for Expr<Lhs, Kind>
where RhsExpr: ExprOperand, Lhs: SqlSub<RhsExpr::Value>,

impl<T, Kind> Freeze for Expr<T, Kind>
where PhantomData<(T, Kind)>: Freeze,

impl<T, Kind> RefUnwindSafe for Expr<T, Kind>
where PhantomData<(T, Kind)>: RefUnwindSafe,

impl<T, Kind> Send for Expr<T, Kind>
where PhantomData<(T, Kind)>: Send,

impl<T, Kind> Sync for Expr<T, Kind>
where PhantomData<(T, Kind)>: Sync,

impl<T, Kind> Unpin for Expr<T, Kind>
where PhantomData<(T, Kind)>: Unpin,

impl<T, Kind> UnsafeUnpin for Expr<T, Kind>
where PhantomData<(T, Kind)>: UnsafeUnpin,

impl<T, Kind> UnwindSafe for Expr<T, Kind>
where PhantomData<(T, Kind)>: UnwindSafe,

impl<T> Any for T
where T: 'static + ?Sized,

impl<T> Borrow<T> for T
where T: ?Sized,

impl<T> BorrowMut<T> for T
where T: ?Sized,

impl<T> CloneToUninit for T
where T: Clone,

impl<T, U> Into<U> for T
where U: From<T>,

impl<T> IntoConcatExpr for T
where T: ExprOperand, <T as ExprOperand>::Value: StringUnaryExpr,

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

impl<T> ToOwned for T
where T: Clone,

impl<T, U> TryFrom<U> for T
where U: Into<T>,

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘ
where S: Into<Dispatch>,