MySQL временная таблица в подзапросе

Я пытаюсь использовать временную таблицу в подзапросе (хранимую процедуру), но возвращает пустой набор результатов...

CREATE DEFINER='root'@'localhost' PROCEDURE 'get_profile_with_templates'(IN _username NVARCHAR(50), IN _template NVARCHAR(50))
BEGIN
    SELECT id INTO @template FROM profile_template WHERE name=_template LIMIT 1;
    SELECT * FROM profile WHERE username=_username AND template=@template LIMIT 1;
    CREATE TEMPORARY TABLE IF NOT EXISTS sections SELECT * FROM profile_template_section WHERE template=@template;
    **CREATE TEMPORARY TABLE IF NOT EXISTS components SELECT * FROM component_template WHERE section IN (SELECT id FROM sections);**
    SELECT * FROM sections;
    SELECT * FROM components;
    SELECT * FROM component_template_option WHERE component_template IN (SELECT id FROM components);
END

запрос между ** - тот, который возвращает пустое... если я запускаю тот же запрос в реальной таблице, он возвращает значения...

CREATE DEFINER='root'@'localhost' PROCEDURE 'get_profile_with_templates'(IN _username NVARCHAR(50), IN _template NVARCHAR(50))
BEGIN
    DROP TEMPORARY TABLE IF EXISTS sections;
    DROP TEMPORARY TABLE IF EXISTS components;
    SELECT id INTO @template FROM profile_template WHERE name=_template LIMIT 1;
    SELECT * FROM profile WHERE username=_username AND template=@template LIMIT 1;
    CREATE TEMPORARY TABLE IF NOT EXISTS sections SELECT * FROM profile_template_section WHERE template=@template;
    CREATE TEMPORARY TABLE IF NOT EXISTS components SELECT * FROM component_template WHERE section IN (SELECT id FROM sections);
    SELECT * FROM sections;
    SELECT * FROM components;
    SELECT * FROM component_template_option WHERE component_template IN (SELECT id FROM components);
    DROP TEMPORARY TABLE IF EXISTS sections;
    DROP TEMPORARY TABLE IF EXISTS components;
END