Struct ChangeEvent 

pub struct ChangeEvent {
    pub lsn: u64,
    pub timestamp: u64,
    pub operation: ChangeOperation,
    pub collection: String,
    pub entity_id: u64,
    pub entity_kind: String,
    pub changed_columns: Option<Vec<String>>,
    pub kv: Option<KvWatchEvent>,
}

A single change event.

Fields

lsn: u64

Monotonically increasing sequence number

timestamp: u64

When the change occurred (unix ms)

operation: ChangeOperation

Type of operation

collection: String

Collection name

entity_id: u64

Entity ID affected

entity_kind: String

Entity kind (table, graph_node, graph_edge, vector, etc.)

changed_columns: Option<Vec<String>>

For Update events, the list of column names whose values changed (including added/removed columns). None when the emitter didn’t compute a damage vector (inserts, deletes, and coarse-grained update paths that haven’t been rewired yet). Downstream CDC consumers can use this to skip replaying updates that touched columns they don’t care about.

kv: Option<KvWatchEvent>

Optional KV-specific payload for WATCH subscribers. Existing CDC consumers can ignore this field and continue using the generic shape.

Trait Implementations

impl Clone for ChangeEvent

fn clone(&self) -> ChangeEvent

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ChangeEvent

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

Formats the value using the given formatter.