Struct IndexDescriptor 

pub struct IndexDescriptor {
    pub index_id: u32,
    pub name: String,
    pub kind: IndexKind,
    pub key_paths: Vec<String>,
    pub root_page_id: u64,
    pub status: IndexStatus,
}

On-disk descriptor for a secondary index attached to a collection.

Persisted inside the owning CollectionDescriptor::indexes vector as part of the catalog row’s postcard payload. The wire shape is documented in docs/format.md § Indexes; format-minor bumped to 2 in M7.

Fields

index_id: u32

Catalog-assigned numeric id for this index. Stable across reopens; never reused — a DroppedPending descriptor retains its index_id so the page reclamation pass on the next checkpoint does not race with concurrent readers.

name: String

User-visible name. Stable across reopens; the reconciler matches a runtime IndexSpec to a stored descriptor by this name.

kind: IndexKind

Discriminator for the kind of index. See crate::index::IndexKind.

key_paths: Vec<String>

Field path(s) the index is keyed by. Single-element for Standard / Unique / Each; ≥ 2 for Composite.

root_page_id: u64

Page-id of the index B+tree’s root.

status: IndexStatus

Lifecycle status — see IndexStatus.

Trait Implementations

impl Clone for IndexDescriptor

fn clone(&self) -> IndexDescriptor

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IndexDescriptor

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for IndexDescriptor

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for IndexDescriptor

fn eq(&self, other: &IndexDescriptor) -> 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 IndexDescriptor

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 IndexDescriptor

impl StructuralPartialEq for IndexDescriptor