Method append_surrogate_bind

nodedb/src/wal/manager/append.rs:219–236

Append a `SurrogateBind` record. Emitted by `SurrogateAssigner::assign` immediately after the catalog two-table txn that writes `_system.surrogate_pk{,_rev}`, so the binding survives a crash before the next hwm checkpoint. The record is durably persisted before `assign` returns. `vshard_id` is `0` — surrogate bindings are node-global metadata.

(
        &self,
        surrogate: u32,
        collection: &str,
        pk_bytes: &[u8],
    )

    /// record is durably persisted before `assign` returns.
    /// `vshard_id` is `0` — surrogate bindings are node-global metadata.
    pub fn append_surrogate_bind(
        &self,
        surrogate: u32,
        collection: &str,
        pk_bytes: &[u8],
    ) -> crate::Result<Lsn> {
        let payload =
            nodedb_wal::record::SurrogateBindPayload::new(surrogate, collection, pk_bytes.to_vec())
                .to_bytes()
                .map_err(crate::Error::Wal)?;
        self.append_record(
            RecordType::SurrogateBind,
            TenantId::new(0),
            VShardId::new(0),
            DatabaseId::DEFAULT,
            &payload,
        )
    }

    /// Append a `CalvinApplied` record after a Calvin executor successfully
    /// commits a `MetaOp::CalvinExecute` batch.