no_id - identifiant du nœud Génère l'événement ENABLE_NODE pour le nœud no_id.

declare
        p_no_id                 alias for $1;
        v_local_node_id int4;
        v_node_row              record;
begin
        -- ----
        -- Grab the central configuration lock
        -- ----
        lock table sl_config_lock;

        -- ----
        -- Check that we are the node to activate and that we are
        -- currently disabled.
        -- ----
        v_local_node_id := getLocalNodeId('_schemadoc');
        select * into v_node_row
                        from sl_node
                        where no_id = p_no_id
                        for update;
        if not found then 
                raise exception 'Slony-I: node % not found', p_no_id;
        end if;
        if v_node_row.no_active then
                raise exception 'Slony-I: node % is already active', p_no_id;
        end if;

        -- ----
        -- Activate this node and generate the ENABLE_NODE event
        -- ----
        perform enableNode_int (p_no_id);
        return  createEvent('_schemadoc', 'ENABLE_NODE',
                                                                        p_no_id::text);
end;