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Value

Enum Value

pub enum Value {
Show 30 variants
    Short(i16),
    Int(i32),
    BigInt(i64),
    Real(f32),
    Double(f64),
    Bool(bool),
    String(String),
    Bytes(Vec<u8>),
    Uuid(Uuid),
    DateTime(DateTime<Utc>),
    NaiveDateTime(NaiveDateTime),
    NaiveDate(NaiveDate),
    NaiveTime(NaiveTime),
    Json(Value),
    Jsonb(Value),
    OptionShort(Option<i16>),
    OptionInt(Option<i32>),
    OptionBigInt(Option<i64>),
    OptionReal(Option<f32>),
    OptionDouble(Option<f64>),
    OptionBool(Option<bool>),
    OptionString(Option<String>),
    OptionBytes(Option<Vec<u8>>),
    OptionUuid(Option<Uuid>),
    OptionDateTime(Option<DateTime<Utc>>),
    OptionNaiveDateTime(Option<NaiveDateTime>),
    OptionNaiveDate(Option<NaiveDate>),
    OptionNaiveTime(Option<NaiveTime>),
    OptionJson(Option<Value>),
    OptionJsonb(Option<Value>),
}

Expand description

Represents a SQL parameter value with full type information.

§Design Decision: Typed Nulls

There is no generic Value::Null variant. Each nullable type has its own Option* variant (e.g., OptionInt(Option<i32>)) so that PostgreSQL receives the correct type OID even when the value is NULL.

Variants§

Short(i16)

Int(i32)

BigInt(i64)

Real(f32)

Double(f64)

Bool(bool)

String(String)

Bytes(Vec<u8>)

Uuid(Uuid)

DateTime(DateTime<Utc>)

NaiveDateTime(NaiveDateTime)

NaiveDate(NaiveDate)

NaiveTime(NaiveTime)

Json(Value)

Jsonb(Value)

OptionShort(Option<i16>)

OptionInt(Option<i32>)

OptionBigInt(Option<i64>)

OptionReal(Option<f32>)

OptionDouble(Option<f64>)

OptionBool(Option<bool>)

OptionString(Option<String>)

OptionBytes(Option<Vec<u8>>)

OptionUuid(Option<Uuid>)

OptionDateTime(Option<DateTime<Utc>>)

OptionNaiveDateTime(Option<NaiveDateTime>)

OptionNaiveDate(Option<NaiveDate>)

OptionNaiveTime(Option<NaiveTime>)

OptionJson(Option<Value>)

OptionJsonb(Option<Value>)

Trait Implementations§

impl Clone for Value

fn clone(&self) -> Value

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more

impl Debug for Value

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

Formats the value using the given formatter. Read more

impl From<&str> for Value

fn from(v: &str) -> Self

Converts to this type from the input type.

impl From<DateTime<Utc>> for Value

fn from(v: DateTime<Utc>) -> Self

Converts to this type from the input type.

impl From<NaiveDate> for Value

fn from(v: NaiveDate) -> Self

Converts to this type from the input type.

impl From<NaiveDateTime> for Value

fn from(v: NaiveDateTime) -> Self

Converts to this type from the input type.

impl From<NaiveTime> for Value

fn from(v: NaiveTime) -> Self

Converts to this type from the input type.

impl From<Option<DateTime<Utc>>> for Value

fn from(v: Option<DateTime<Utc>>) -> Self

Converts to this type from the input type.

impl From<Option<NaiveDate>> for Value

fn from(v: Option<NaiveDate>) -> Self

Converts to this type from the input type.

impl From<Option<NaiveDateTime>> for Value

fn from(v: Option<NaiveDateTime>) -> Self

Converts to this type from the input type.

impl From<Option<NaiveTime>> for Value

fn from(v: Option<NaiveTime>) -> Self

Converts to this type from the input type.

impl From<Option<String>> for Value

fn from(v: Option<String>) -> Self

Converts to this type from the input type.

impl From<Option<Uuid>> for Value

fn from(v: Option<Uuid>) -> Self

Converts to this type from the input type.

impl From<Option<Vec<u8>>> for Value

fn from(v: Option<Vec<u8>>) -> Self

Converts to this type from the input type.

impl From<Option<bool>> for Value

fn from(v: Option<bool>) -> Self

Converts to this type from the input type.

impl From<Option<f32>> for Value

fn from(v: Option<f32>) -> Self

Converts to this type from the input type.

impl From<Option<f64>> for Value

fn from(v: Option<f64>) -> Self

Converts to this type from the input type.

impl From<Option<i16>> for Value

fn from(v: Option<i16>) -> Self

Converts to this type from the input type.

impl From<Option<i32>> for Value

fn from(v: Option<i32>) -> Self

Converts to this type from the input type.

impl From<Option<i64>> for Value

fn from(v: Option<i64>) -> Self

Converts to this type from the input type.

impl From<String> for Value

fn from(v: String) -> Self

Converts to this type from the input type.

impl From<Uuid> for Value

fn from(v: Uuid) -> Self

Converts to this type from the input type.

impl From<Vec<u8>> for Value

fn from(v: Vec<u8>) -> Self

Converts to this type from the input type.

impl From<bool> for Value

fn from(v: bool) -> Self

Converts to this type from the input type.

impl From<f32> for Value

fn from(v: f32) -> Self

Converts to this type from the input type.

impl From<f64> for Value

fn from(v: f64) -> Self

Converts to this type from the input type.

impl From<i16> for Value

fn from(v: i16) -> Self

Converts to this type from the input type.

impl From<i32> for Value

fn from(v: i32) -> Self

Converts to this type from the input type.

impl From<i64> for Value

fn from(v: i64) -> Self

Converts to this type from the input type.

impl PartialEq for Value

fn eq(&self, other: &Value) -> bool

Tests for self and other values to be equal, and is used by ==.

1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Value

Auto Trait Implementations§

impl Freeze for Value

impl RefUnwindSafe for Value

impl Send for Value

impl Sync for Value

impl Unpin for Value

impl UnsafeUnpin for Value

impl UnwindSafe for Value

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<T> FlozRowBound for T

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

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

fn in_current_span(self) -> Instrumented<Self>

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

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<T> IntoEither for T

fn into_either(self, into_left: bool) -> Either<Self, Self>

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

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

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

impl<T> Same for T

type Output = T

Should always be 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.

impl<T> WithSubscriber for T

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

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

fn with_current_subscriber(self) -> WithDispatch<Self>

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