SELECT 
  s.*, 
  netting_common_descriptions.object as section 
FROM 
  netting_sitemap_sections AS s 
  LEFT JOIN netting_common_descriptions ON s.section_id = netting_common_descriptions.object_id 
  AND netting_common_descriptions.object_holder = "sitemap_sections" 
  AND netting_common_descriptions.lang_code = 'es' 
WHERE 
  status = 'A' 
ORDER BY 
  s.position

Query time 0.00031

JSON explain

{
  "query_block": {
    "select_id": 1,
    "const_condition": "1",
    "nested_loop": [
      {
        "table": {
          "table_name": "s",
          "access_type": "system",
          "rows": 1,
          "filtered": 100
        }
      },
      {
        "table": {
          "table_name": "netting_common_descriptions",
          "access_type": "const",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "108",
          "used_key_parts": ["object_id", "lang_code", "object_holder"],
          "ref": ["const", "const", "const"],
          "rows": 1,
          "filtered": 100
        }
      }
    ]
  }
}