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KvConfig

Struct KvConfig 

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pub struct KvConfig {
    pub schema: StrictSchema,
    pub ttl: Option<KvTtlPolicy>,
    pub capacity_hint: u32,
    pub inline_threshold: u16,
}
Expand description

Configuration for a Key-Value collection.

KV collections use a hash-indexed primary key for O(1) point lookups. Value fields are encoded as Binary Tuples (same codec as strict mode) providing O(1) field extraction by byte offset.

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§schema: StrictSchema

Typed schema for this KV collection (key + value columns).

The PRIMARY KEY column is the hash key. Remaining columns are value fields encoded as Binary Tuples with O(1) field extraction. The schema reuses StrictSchema from the strict document engine.

§ttl: Option<KvTtlPolicy>

TTL policy for automatic key expiration. None = keys never expire.

§capacity_hint: u32

Initial capacity hint for the hash table. Avoids early rehash churn for known-size workloads. 0 = use engine default (from KvTuning).

§inline_threshold: u16

Inline value threshold in bytes. Values at or below this size are stored directly in the hash entry (no pointer chase). Larger values overflow to slab-allocated Binary Tuples referenced by slab ID.

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impl KvConfig

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pub fn primary_key_column(&self) -> Option<&ColumnDef>

Get the primary key column from the schema.

KV collections always have exactly one PRIMARY KEY column.

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pub fn has_ttl(&self) -> bool

Whether this KV collection has TTL enabled.

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impl Clone for KvConfig

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fn clone(&self) -> KvConfig

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 KvConfig

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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<'de> Deserialize<'de> for KvConfig

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl<'__msgpack_de> FromMessagePack<'__msgpack_de> for KvConfig

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fn read<R: Read<'__msgpack_de>>(reader: &mut R) -> Result<Self, Error>
where Self: Sized,

Reads the MessagePack representation of this value from the provided reader.
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impl PartialEq for KvConfig

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fn eq(&self, other: &KvConfig) -> 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 Serialize for KvConfig

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl ToMessagePack for KvConfig

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fn write<W: Write>(&self, writer: &mut W) -> Result<(), Error>

Writes the MessagePack representation of this value into the provided writer.
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impl Eq for KvConfig

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impl StructuralPartialEq for KvConfig

Auto Trait 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> ArchivePointee for T

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type ArchivedMetadata = ()

The archived version of the pointer metadata for this type.
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fn pointer_metadata( _: &<T as ArchivePointee>::ArchivedMetadata, ) -> <T as Pointee>::Metadata

Converts some archived metadata to the pointer metadata for itself.
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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
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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<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. 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> LayoutRaw for T

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fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError>

Returns the layout of the type.
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impl<T, N1, N2> Niching<NichedOption<T, N1>> for N2
where T: SharedNiching<N1, N2>, N1: Niching<T>, N2: Niching<T>,

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unsafe fn is_niched(niched: *const NichedOption<T, N1>) -> bool

Returns whether the given value has been niched. Read more
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fn resolve_niched(out: Place<NichedOption<T, N1>>)

Writes data to out indicating that a T is niched.
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impl<T> Pointee for T

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type Metadata = ()

The metadata type for pointers and references to this type.
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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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Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
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type Error = Infallible

The type returned in the event of a conversion error.
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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.
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impl<V, T> VZip<V> for T
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fn vzip(self) -> V

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where T: for<'de> Deserialize<'de>,

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where T: for<'a> FromMessagePack<'a>,