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Literal

clicktype_query::expr

Struct Literal

pub struct Literal<T: ClickHouseType> { /* private fields */ }

Expand description

Literal value expression

Implementations§

impl<T: ClickHouseType> Literal<T>

pub fn new(value: String) -> Self

Trait Implementations§

impl<T: Clone + ClickHouseType> Clone for Literal<T>

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

Returns a duplicate of the value. Read more

1.0.0 · Source§

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

Performs copy-assignment from source. Read more

impl<T: Debug + ClickHouseType> Debug for Literal<T>

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

Formats the value using the given formatter. Read more

impl<T: ClickHouseType> Expression for Literal<T>

type Output = T

The output type of this expression

fn render(&self) -> String

Render the expression to SQL

fn is_aggregate(&self) -> bool

Whether this is an aggregate expression

impl From<&str> for Literal<String>

fn from(value: &str) -> Self

Converts to this type from the input type.

impl From<String> for Literal<String>

fn from(value: String) -> Self

Converts to this type from the input type.

impl From<f32> for Literal<f32>

fn from(value: f32) -> Self

Converts to this type from the input type.

impl From<f64> for Literal<f64>

fn from(value: f64) -> Self

Converts to this type from the input type.

impl From<i16> for Literal<i16>

fn from(value: i16) -> Self

Converts to this type from the input type.

impl From<i32> for Literal<i32>

fn from(value: i32) -> Self

Converts to this type from the input type.

impl From<i64> for Literal<i64>

fn from(value: i64) -> Self

Converts to this type from the input type.

impl From<i8> for Literal<i8>

fn from(value: i8) -> Self

Converts to this type from the input type.

impl From<u16> for Literal<u16>

fn from(value: u16) -> Self

Converts to this type from the input type.

impl From<u32> for Literal<u32>

fn from(value: u32) -> Self

Converts to this type from the input type.

impl From<u64> for Literal<u64>

fn from(value: u64) -> Self

Converts to this type from the input type.

impl From<u8> for Literal<u8>

fn from(value: u8) -> Self

Converts to this type from the input type.

Auto Trait Implementations§

impl<T> Freeze for Literal<T>

impl<T> RefUnwindSafe for Literal<T>
where T: RefUnwindSafe,

impl<T> Send for Literal<T>

impl<T> Sync for Literal<T>

impl<T> Unpin for Literal<T>
where T: Unpin,

impl<T> UnwindSafe for Literal<T>
where T: UnwindSafe,

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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

unsafe fn clone_to_uninit(&self, dest: *mut u8)

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

Performs copy-assignment from self to dest. Read more

impl<E> Comparable for E
where E: Expression,

fn eq<R>(self, rhs: R) -> CompareExpr<Self, Literal<Self::Output>, Eq>
where R: Into<Literal<Self::Output>>,

fn ne<R>(self, rhs: R) -> CompareExpr<Self, Literal<Self::Output>, Ne>
where R: Into<Literal<Self::Output>>,

fn lt<R>(self, rhs: R) -> CompareExpr<Self, Literal<Self::Output>, Lt>
where R: Into<Literal<Self::Output>>,

fn le<R>(self, rhs: R) -> CompareExpr<Self, Literal<Self::Output>, Le>
where R: Into<Literal<Self::Output>>,

fn gt<R>(self, rhs: R) -> CompareExpr<Self, Literal<Self::Output>, Gt>
where R: Into<Literal<Self::Output>>,

fn ge<R>(self, rhs: R) -> CompareExpr<Self, Literal<Self::Output>, Ge>
where R: Into<Literal<Self::Output>>,

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

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

fn into(self) -> U

Calls U::from(self).

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

impl<E> Logical for E
where E: Expression<Output = bool>,

fn and<R: Expression<Output = bool>>(self, rhs: R) -> AndExpr<Self, R>

fn or<R: Expression<Output = bool>>(self, rhs: R) -> OrExpr<Self, R>

fn not(self) -> NotExpr<Self>

impl<E> NullOps for E
where E: Expression,

fn is_null(self) -> IsNullExpr<Self>

fn is_not_null(self) -> IsNotNullExpr<Self>

impl<E> StringOps for E
where E: Expression<Output = String>,

fn like(self, pattern: &str) -> LikeExpr<Self>

fn ilike(self, pattern: &str) -> ILikeExpr<Self>

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

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

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

fn clone_into(&self, target: &mut T)

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

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

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

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

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.