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ScalarType

Enum ScalarType 

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pub enum ScalarType {
Show 14 variants String, Boolean, Int, BigInt, Float, Decimal { precision: u32, scale: u32, }, DateTime, Bytes, Json, Uuid, Jsonb, Xml, Char { length: u32, }, VarChar { length: u32, },
}
Expand description

Scalar type enumeration.

Variants§

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String

UTF-8 string type.

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Boolean

Boolean type (true/false).

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Int

32-bit integer.

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BigInt

64-bit integer.

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Float

64-bit floating point.

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Decimal

Fixed-precision decimal number.

Fields

§precision: u32

Number of total digits.

§scale: u32

Number of digits after decimal point.

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DateTime

Date and time.

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Bytes

Binary data.

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Json

JSON value.

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Uuid

UUID value.

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Jsonb

JSONB value (PostgreSQL only).

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Xml

XML value (PostgreSQL only).

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Char

Fixed-length character type.

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§length: u32

Column length.

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VarChar

Variable-length character type.

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§length: u32

Maximum column length.

Implementations§

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impl ScalarType

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pub fn rust_type(&self) -> &'static str

Returns the Rust type name for this scalar type.

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pub fn supported_by(self, provider: DatabaseProvider) -> bool

Returns true when this scalar type is supported by the given database provider.

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pub fn supported_providers(self) -> &'static str

Human-readable list of supported providers (for diagnostics).

Trait Implementations§

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impl Clone for ScalarType

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fn clone(&self) -> ScalarType

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for ScalarType

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

Formats the value using the given formatter. Read more
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impl PartialEq for ScalarType

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

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

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impl Eq for ScalarType

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impl StructuralPartialEq for ScalarType

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Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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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
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.