Struct CollectionStat 

#[non_exhaustive]
pub struct CollectionStat {
    pub name: String,
    pub collection_id: u32,
    pub type_version: u32,
    pub doc_count: u64,
    pub total_payload_bytes: u64,
    pub active_index_count: usize,
    pub dropped_index_count: usize,
    pub indexes: Vec<IndexDescriptor>,
}

Per-collection summary inside DbStat.

doc_count and total_payload_bytes are computed by walking the collection’s primary B-tree once; the cost is O(n) in the number of documents in the collection. obj stat calls Db::stat once per --collection invocation; tools that need realtime telemetry should NOT use this surface.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

name: String

User-visible name.

collection_id: u32

Catalog-assigned numeric id.

type_version: u32

Document::VERSION of the type that last wrote to the collection.

doc_count: u64

Number of documents in the primary B-tree.

total_payload_bytes: u64

Approximate total payload bytes — sum of every doc header’s payload_len. Does NOT include the 16-byte per-doc header itself; per docs/format.md the in-file footprint is payload_len + DOC_HEADER_SIZE per doc, plus B+tree per-page overhead.

active_index_count: usize

Number of Active secondary indexes. DroppedPending descriptors are NOT counted.

dropped_index_count: usize

Number of DroppedPending index descriptors (kept so the index_id is never reused; pages reclaimed on the next checkpoint).

indexes: Vec<IndexDescriptor>

Full secondary-index descriptors for this collection, in catalog order. Includes both Active and DroppedPending entries — indexes.len() == active_index_count + dropped_index_count. Surfaced for introspection tooling (e.g. the obj-py descriptor view); the count fields above remain the cheap summary.

Trait Implementations

impl Clone for CollectionStat

fn clone(&self) -> CollectionStat

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CollectionStat

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for CollectionStat

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for CollectionStat

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

where __S: Serializer,

Serialize this value into the given Serde serializer.