Method truncate

nodedb/src/engine/kv/engine_stats.rs:91–103

Truncate: delete all entries in a KV collection. Returns count deleted.

(&mut self, tenant_id: u64, collection: &str)

    /// Truncate: delete all entries in a KV collection. Returns count deleted.
    pub fn truncate(&mut self, tenant_id: u64, collection: &str) -> usize {
        let tkey = table_key(tenant_id, collection);
        let count = self.tables.get(&tkey).map(|t| t.len()).unwrap_or(0);

        // Remove the hash table entirely.
        self.tables.remove(&tkey);
        // Remove all indexes.
        self.indexes.remove(&tkey);
        // Note: expiry wheel entries for this collection will be no-ops
        // when they fire (key won't be found in the hash table).

        count
    }

    // -----------------------------------------------------------------------
    // Stats