Het verkrijgen van een mySQL-opgeslagen procedure resulteert in een andere opgeslagen procedure

Het lijkt (volgens deze community en omdat ik geen voorbeelden kon vinden van opgeslagen procedures die resultatensets van andere opgeslagen procedures gebruiken als tabellen in nieuwe geselecteerde tabellen) dat mysql dit niet ondersteunt of dat het belachelijk moeilijk is om te doen wat ik hoopte te doen.

Dus in plaats van opgeslagen procedures aan te roepen, heb ik de query's naar deze laatste procedure gekopieerd.

    DELIMITER $$

    CREATE DEFINER=`root`@`localhost` PROCEDURE `get_team_stats_change`(
        IN team_id INT
    )
    BEGIN
    SELECT SUM(start_weight) AS start_weight, 
        SUM(start_body_fat) AS start_body_fat, 
        SUM(current_weight) AS current_weight,
        SUM(current_body_fat) AS current_body_fat,
        SUM(weight_change) AS weight_change, 
        SUM(body_fat_change) AS body_fat_change FROM (
    SELECT ls.person_id, 
        fs.weight AS start_weight, fs.body_fat AS start_body_fat, 
        ls.weight AS current_weight, ls.body_fat AS current_body_fat,
        fs.weight - ls.weight AS weight_change, fs.body_fat - ls.body_fat AS body_fat_change
    FROM
    (SELECT ttd.person_id, bs.weight, bs.body_fat, bs.test_date
    FROM body_stats AS bs
    JOIN
        ((SELECT pbs.person_id,  min(bs.test_date)  AS first_test, max(bs.test_date) AS last_test   
        FROM body_stats AS bs,
            person_body_stats AS pbs,
            team_member AS tm,
            team AS t
        WHERE t.team_id = team_id
        AND tm.team_id = t.team_id
        AND tm.person_id = pbs.person_id
        AND pbs.body_stats_id = bs.body_stats_id
        AND tm.start_date  bs.test_date
        AND bs.test_date >= t.starting_date
        GROUP BY person_id) AS ttd,
        person_body_stats AS pbs)
    ON bs.test_date = ttd.first_test 
        AND pbs.person_id = ttd.person_id 
        AND pbs.body_stats_id = bs.body_stats_id) AS fs,

    (SELECT ttd.person_id, bs.weight, bs.body_fat, bs.test_date
    FROM body_stats AS bs
    JOIN
        ((SELECT pbs.person_id,  min(bs.test_date)  AS first_test, max(bs.test_date) AS last_test   
        FROM body_stats AS bs,
            person_body_stats AS pbs,
            team_member AS tm,
            team AS t
        WHERE t.team_id = team_id
        AND tm.team_id = t.team_id
        AND tm.person_id = pbs.person_id
        AND pbs.body_stats_id = bs.body_stats_id
        AND tm.start_date  bs.test_date
        AND bs.test_date >= t.starting_date
        GROUP BY person_id) AS ttd,
        person_body_stats AS pbs)
    ON bs.test_date = ttd.last_test 
        AND pbs.person_id = ttd.person_id 
        AND pbs.body_stats_id = bs.body_stats_id) AS ls
        WHERE ls.person_id = fs.person_id
       ) AS delta;
    END