Enum CollectionType 

pub enum CollectionType {
    Document(DocumentMode),
    Columnar(ColumnarProfile),
    KeyValue(KvConfig),
}

The type of a collection, determining its storage engine and query behavior.

Three top-level modes:

• Document: B-tree storage in redb (schemaless MessagePack or strict Binary Tuples).
• Columnar: Compressed segment files with profile specialization (plain, timeseries, spatial).
• KeyValue: Hash-indexed O(1) point lookups with typed value fields (Binary Tuples).

Variants

Document(DocumentMode)

Document storage in redb B-tree. Schemaless (MessagePack) or strict (Binary Tuples).

Columnar(ColumnarProfile)

Columnar storage in compressed segment files. Profile determines constraints and specialized behavior.

KeyValue(KvConfig)

Key-Value storage with hash-indexed primary key. O(1) point lookups, optional TTL, optional secondary indexes. Value fields use Binary Tuple codec (same as strict mode) for O(1) field extraction.

Implementations

impl CollectionType

pub fn document() -> Self

Schemaless document (default, backward compatible).

pub fn strict(schema: StrictSchema) -> Self

Strict document with schema.

pub fn columnar() -> Self

Plain columnar (general analytics).

pub fn timeseries( time_key: impl Into<String>, interval: impl Into<String>, ) -> Self

Columnar with timeseries profile.

pub fn spatial(geometry_column: impl Into<String>) -> Self

Columnar with spatial profile.

pub fn kv(schema: StrictSchema) -> Self

Key-Value collection with typed schema and optional TTL.

The schema MUST contain exactly one PRIMARY KEY column (the hash key). Remaining columns are value fields encoded as Binary Tuples.

pub fn kv_with_ttl(schema: StrictSchema, ttl: KvTtlPolicy) -> Self

Key-Value collection with TTL policy.

pub fn is_document(&self) -> bool

pub fn is_columnar(&self) -> bool

pub fn is_timeseries(&self) -> bool

pub fn is_strict(&self) -> bool

pub fn is_schemaless(&self) -> bool

pub fn is_kv(&self) -> bool

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

pub fn document_mode(&self) -> Option<&DocumentMode>

Get the document mode, if this is a document collection.

pub fn columnar_profile(&self) -> Option<&ColumnarProfile>

Get the columnar profile, if this is a columnar collection.

pub fn kv_config(&self) -> Option<&KvConfig>

Get the KV config, if this is a key-value collection.

Trait Implementations

impl Clone for CollectionType

fn clone(&self) -> CollectionType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CollectionType

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

Formats the value using the given formatter.

impl Default for CollectionType

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for CollectionType

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for CollectionType

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

Formats the value using the given formatter.

impl FromStr for CollectionType

type Err = String

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl PartialEq for CollectionType

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

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

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 Serialize for CollectionType

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for CollectionType

impl StructuralPartialEq for CollectionType