Symfony Profiler

SELECT 
  t0.id AS id_1, 
  t0.title AS title_2, 
  t0.video_url AS video_url_3, 
  t0.description AS description_4, 
  t0.price AS price_5, 
  t0.preview_picture AS preview_picture_6, 
  t0.duration AS duration_7, 
  t0.available_at AS available_at_8, 
  t0.backend_id AS backend_id_9 
FROM 
  courses t0 
LIMIT 
  9999

SELECT t0.id AS id_1, t0.title AS title_2, t0.video_url AS video_url_3, t0.description AS description_4, t0.price AS price_5, t0.preview_picture AS preview_picture_6, t0.duration AS duration_7, t0.available_at AS available_at_8, t0.backend_id AS backend_id_9 FROM courses t0 LIMIT 9999;

SELECT 
  t0.id AS id_1, 
  t0.title AS title_2, 
  t0.exchange_rate AS exchange_rate_3 
FROM 
  exchange_rates t0 
WHERE 
  t0.title = ? 
LIMIT 
  1

SELECT t0.id AS id_1, t0.title AS title_2, t0.exchange_rate AS exchange_rate_3 FROM exchange_rates t0 WHERE t0.title = 'eur' LIMIT 1;