{"pool_stats":map[primary:map[idle:1 in_use:0 max_idle_closed:0 max_lifetime_closed:28 open_connections:1 wait_count:0 wait_duration_ms:0] read_only:map[idle:1 in_use:0 max_idle_closed:0 max_lifetime_closed:28 open_connections:1 wait_count:0 wait_duration_ms:0]]}