SELECT 
  status_id, 
  status 
FROM 
  cscart_statuses 
WHERE 
  type = 'O'

Query time 0.00015

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost": 0.013007295,
    "nested_loop": [
      {
        "table": {
          "table_name": "cscart_statuses",
          "access_type": "ALL",
          "loops": 1,
          "rows": 19,
          "cost": 0.013007295,
          "filtered": 100,
          "attached_condition": "cscart_statuses.`type` = 'O'"
        }
      }
    ]
  }
}

Result

status_id status
1 P
2 C
3 O
4 F
5 D
6 B
7 I
19 Y