Struct SnapshotState 

pub struct SnapshotState {

    pub ids: IdMap,
    pub syms: Interner,
    pub topo: Topology,
    pub props: ColumnStore,
    pub labels: Vec<u32>,
    pub edge_props: EdgeProps,
    pub rule_defs: Vec<Vec<u8>>,
    pub provenance: BTreeMap<String, BTreeSet<(u32, u32, u32)>>,
    pub rule_tripped: BTreeMap<String, bool>,
    pub rule_fires: BTreeMap<String, u64>,
    pub ivf_state: BTreeMap<String, PerRuleIvfState>,
    pub view_defs: Vec<Vec<u8>>,
    pub wal_truncated: bool,
    pub hnsw_state: BTreeMap<String, (Vec<u8>, Vec<u8>)>,
}

Fields

ids: IdMap

syms: Interner

topo: Topology

props: ColumnStore

labels: Vec<u32>

edge_props: EdgeProps

rule_defs: Vec<Vec<u8>>

Bincoded RuleDef bytes — one entry per rule. Raw bytes keep core-storage independent of core-rules.

provenance: BTreeMap<String, BTreeSet<(u32, u32, u32)>>

rule_tripped: BTreeMap<String, bool>

Per-rule budget-trip flags.

rule_fires: BTreeMap<String, u64>

Per-rule fire counters.

ivf_state: BTreeMap<String, PerRuleIvfState>

Per-approximate-rule IVF state (centroids + assignments + drift). Empty for exact rules and rules with no fitted clusters. Added in VERSION 4.

view_defs: Vec<Vec<u8>>

Bincoded ViewDef bytes — one entry per materialized view. Raw bytes keep core-storage independent of core-rules. Values are NOT stored here; they are recomputed after open from the persisted topo + props. Added in VERSION 5.

wal_truncated: bool

True when the snapshot write truncated the WAL (keep_wal: false), i.e. the on-disk WAL head coincides with this snapshot’s state and open_at must load the snapshot as its base before replaying frames. Serialized in the V7 meta section only; V5/V6 payloads never carried it, so it is skipped here to keep their bincode wire shape frozen (decode of old formats leaves the default false = WAL-only as-of).

hnsw_state: BTreeMap<String, (Vec<u8>, Vec<u8>)>

Per-approximate-rule HNSW graph blobs: rule name → (src_blob, dst_blob). Each blob is opaque to this crate and carries its own magic and version (MHNS, v3 as of 0.6.6; a 0.6.5 store’s blobs are a bare bincoded HnswIndex and are read as v1). Nothing here parses them, which is why the blob format can change without a snapshot format bump. Serialized in the V7 meta section only; V5/V6 payloads never carried it — skipped here so their bincode wire shape is frozen (missing → default empty map).

Trait Implementations

impl<'de> Deserialize<'de> for SnapshotState

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for SnapshotState

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

where __S: Serializer,

Serialize this value into the given Serde serializer.