SELECT 
  cscart_categories.category_id, 
  cscart_categories.parent_id, 
  cscart_categories.id_path, 
  cscart_category_descriptions.category, 
  cscart_categories.position, 
  cscart_categories.status, 
  cscart_categories.company_id 
FROM 
  cscart_categories 
  LEFT JOIN cscart_category_descriptions ON cscart_categories.category_id = cscart_category_descriptions.category_id 
  AND cscart_category_descriptions.lang_code = 'ja' 
WHERE 
  1 = 1 
  AND (
    cscart_categories.usergroup_ids = '' 
    OR FIND_IN_SET(
      0, cscart_categories.usergroup_ids
    ) 
    OR FIND_IN_SET(
      1, cscart_categories.usergroup_ids
    )
  ) 
  AND cscart_categories.status IN ('A') 
  AND cscart_categories.parent_id IN (175) 
  AND cscart_categories.id_path LIKE '166/175/%' 
ORDER BY 
  cscart_categories.is_trash asc, 
  cscart_categories.position asc, 
  cscart_category_descriptions.category asc

Query time 0.00006

JSON explain

{
  "query_block": {
    "select_id": 1,
    "filesort": {
      "sort_key": "cscart_categories.is_trash, cscart_categories.position, cscart_category_descriptions.category",
      "temporary_table": {
        "table": {
          "table_name": "cscart_categories",
          "access_type": "ref",
          "possible_keys": ["c_status", "parent", "id_path"],
          "key": "parent",
          "key_length": "3",
          "used_key_parts": ["parent_id"],
          "ref": ["const"],
          "rowid_filter": {
            "range": {
              "key": "id_path",
              "used_key_parts": ["id_path"]
            },
            "rows": 7,
            "selectivity_pct": 8.43373494
          },
          "rows": 7,
          "filtered": 8.433734894,
          "attached_condition": "(cscart_categories.usergroup_ids = '' or find_in_set(0,cscart_categories.usergroup_ids) or find_in_set(1,cscart_categories.usergroup_ids)) and cscart_categories.`status` = 'A' and cscart_categories.id_path like '166/175/%'"
        },
        "table": {
          "table_name": "cscart_category_descriptions",
          "access_type": "eq_ref",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "9",
          "used_key_parts": ["category_id", "lang_code"],
          "ref": ["smscrm_edev.cscart_categories.category_id", "const"],
          "rows": 1,
          "filtered": 100,
          "attached_condition": "trigcond(cscart_category_descriptions.lang_code = 'ja')"
        }
      }
    }
  }
}