Enum mariadb::Value

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#[non_exhaustive]
pub enum Value<'a> {
Show 16 variants Decimal(&'a [u8]), I8(i8), I16(i16), Long(i64), LongLong(i64), F32(f32), F64(f64), Null, Time, TimeStamp, Date, DateTime, Year, String(&'a [u8]), Blob(&'a [u8]), Json(&'a [u8]),
}
Expand description

A SQL type and value

Variants (Non-exhaustive)§

This enum is marked as non-exhaustive
Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.
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Decimal(&'a [u8])

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I8(i8)

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I16(i16)

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Long(i64)

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LongLong(i64)

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F32(f32)

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F64(f64)

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Null

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Time

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TimeStamp

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Date

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DateTime

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Year

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String(&'a [u8])

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Blob(&'a [u8])

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Json(&'a [u8])

Implementations§

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impl<'a> Value<'a>

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pub fn as_int(&self) -> Option<i64>

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pub fn as_str(&self) -> Option<&'a str>

Note: a lot of things that would probably be strings actually show up as blobs. Likely encoding related.

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pub fn as_bytes(&self) -> Option<&'a [u8]>

Trait Implementations§

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impl<'a> Clone for Value<'a>

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fn clone(&self) -> Value<'a>

Returns a copy 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<'a> Debug for Value<'a>

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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<'a> Copy for Value<'a>

Auto Trait Implementations§

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impl<'a> RefUnwindSafe for Value<'a>

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impl<'a> Send for Value<'a>

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impl<'a> Sync for Value<'a>

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impl<'a> Unpin for Value<'a>

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impl<'a> UnwindSafe for Value<'a>

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> 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.