Value

Enum Value 

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pub enum Value {
Show 29 variants Null, Boolean(Option<bool>), Int8(Option<i8>), Int16(Option<i16>), Int32(Option<i32>), Int64(Option<i64>), Int128(Option<i128>), UInt8(Option<u8>), UInt16(Option<u16>), UInt32(Option<u32>), UInt64(Option<u64>), UInt128(Option<u128>), Float32(Option<f32>), Float64(Option<f64>), Decimal(Option<Decimal>, u8, u8), Char(Option<char>), Varchar(Option<String>), Blob(Option<Box<[u8]>>), Date(Option<Date>), Time(Option<Time>), Timestamp(Option<PrimitiveDateTime>), TimestampWithTimezone(Option<OffsetDateTime>), Interval(Option<Interval>), Uuid(Option<Uuid>), Array(Option<Box<[Value]>>, Box<Value>, u32), List(Option<Vec<Value>>, Box<Value>), Map(Option<HashMap<Value, Value>>, Box<Value>, Box<Value>), Struct(Option<Vec<(String, Value)>>, Vec<(String, Value)>), Unknown(Option<String>),
}

Variants§

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Null

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Boolean(Option<bool>)

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Int8(Option<i8>)

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Int16(Option<i16>)

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Int32(Option<i32>)

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Int64(Option<i64>)

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Int128(Option<i128>)

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UInt8(Option<u8>)

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UInt16(Option<u16>)

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UInt32(Option<u32>)

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UInt64(Option<u64>)

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UInt128(Option<u128>)

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Float32(Option<f32>)

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Float64(Option<f64>)

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Decimal(Option<Decimal>, u8, u8)

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Char(Option<char>)

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Varchar(Option<String>)

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Blob(Option<Box<[u8]>>)

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Date(Option<Date>)

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Time(Option<Time>)

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Timestamp(Option<PrimitiveDateTime>)

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TimestampWithTimezone(Option<OffsetDateTime>)

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Interval(Option<Interval>)

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Uuid(Option<Uuid>)

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Array(Option<Box<[Value]>>, Box<Value>, u32)

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List(Option<Vec<Value>>, Box<Value>)

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Map(Option<HashMap<Value, Value>>, Box<Value>, Box<Value>)

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Struct(Option<Vec<(String, Value)>>, Vec<(String, Value)>)

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Unknown(Option<String>)

Implementations§

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impl Value

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pub fn same_type(&self, other: &Self) -> bool

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pub fn is_null(&self) -> bool

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pub fn as_null(&self) -> Value

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pub fn try_as(self, value: &Value) -> Result<Value>

Trait Implementations§

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impl Clone for Value

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fn clone(&self) -> Value

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 Value

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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 Default for Value

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fn default() -> Value

Returns the “default value” for a type. Read more
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impl Expression for Value

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fn write_query( &self, writer: &dyn SqlWriter, context: &mut Context, buff: &mut String, )

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fn is_ordered(&self) -> bool

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impl From<&'static str> for Value

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fn from(value: &'static str) -> Self

Converts to this type from the input type.
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impl<T: AsValue> From<T> for Value

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fn from(value: T) -> Self

Converts to this type from the input type.
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impl Hash for Value

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fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl OpPrecedence for Value

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fn precedence(&self, _writer: &dyn SqlWriter) -> i32

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impl PartialEq for Value

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fn eq(&self, other: &Self) -> 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 ToTokens for Value

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fn to_tokens(&self, tokens: &mut TokenStream)

Write self to the given TokenStream. Read more
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fn to_token_stream(&self) -> TokenStream

Convert self directly into a TokenStream object. Read more
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fn into_token_stream(self) -> TokenStream
where Self: Sized,

Convert self directly into a TokenStream object. Read more
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impl Eq for Value

Auto Trait Implementations§

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impl Freeze for Value

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impl RefUnwindSafe for Value

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impl Send for Value

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impl Sync for Value

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impl Unpin for Value

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impl UnwindSafe for Value

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> Spanned for T
where T: Spanned + ?Sized,

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fn span(&self) -> Span

Returns a Span covering the complete contents of this syntax tree node, or Span::call_site() if this node is empty.
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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.