SELECT 
  c.* 
FROM 
  cscart_bm_containers as c 
WHERE 
  1 
  AND c.location_id = 1

Query time 0.00026

Explain
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE c ref location_id,location_id_company_id,location_id_position_company_id location_id 3 const 4

Result

container_id location_id position width user_class linked_to_default status company_id
1 1 TOP_PANEL 16 top-grid Y A 0
2 1 HEADER 16 header-grid Y A 0
3 1 CONTENT 16 content-grid Y A 0
4 1 FOOTER 16 ty-footer-grid Y A 0