ANALYZE FORMAT=JSON: r_unpack_time_ms is empty for the hashed joins

create table t10 (

  a int, 

  b int

);

insert into t10 select seq, seq/3 from seq_0_to_999;

create table t11 (

  a int,

  b int

);

insert into t11 select seq, seq/5 from seq_0_to_999;

set join_cache_level=6;

analyze format=json

select * from t10, t11 

where 

 t10.a < 700 and 

 t11.a < 100 

 and t10.b=t11.b;

      {

        "block-nl-join": {

          "table": {

            "table_name": "t11",

            "access_type": "hash_ALL",

            "key": "#hash#$hj",

            "key_length": "5",

            "used_key_parts": ["b"],

            "ref": ["test.t10.b"],

            "loops": 1000,

            "r_loops": 1,

            "rows": 1000,

            "r_rows": 1000,

            "cost": 9.5143874,

            "r_table_time_ms": 0.117991585,

            "r_other_time_ms": 0.403368737,

            "filtered": 100,

            "r_filtered": 10,

            "attached_condition": "t11.a < 100"

          },

          "buffer_type": "flat",

          "buffer_size": "36Kb",

          "join_type": "BNLH",

          "attached_condition": "t11.b = t10.b",

          "r_filtered": 100,

          "r_unpack_time_ms": 0

        }

      }

          "r_unpack_time_ms": 0