n.id,n.tenant_id,n.name,n.parent_id,n.parent_ids,n.node_type,n.dir_type,n.status,n.create_dept,n.is_deleted,n.create_time,n.create_user,n.update_time,n.update_user select ,( SELECT CASE WHEN count(1) > 0 THEN 1 ELSE 0 END FROM mdm_program_node WHERE parent_id = n.id and is_deleted = 0 ) AS "has_children" from mdm_program_node n where n.is_deleted=0 and n.parent_id=#{parentId}