Method free_node

nodedb/src/engine/kv/sorted_index/tree.rs:168–177

(&mut self, idx: u32)

    }

    fn free_node(&mut self, idx: u32) {
        self.free_list.push(idx);
        let n = &mut self.nodes[idx as usize];
        n.sort_key.clear();
        n.primary_key.clear();
        n.count = 0;
        n.left = NULL;
        n.right = NULL;
        n.height = 0;
    }

    fn height(&self, idx: u32) -> i8 {
        if idx == NULL {