SELECT 
  privilege 
FROM 
  cscart_usergroup_privileges 
WHERE 
  usergroup_id IN (0, 1)

Query time 0.00105

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "15.93"
    },
    "table": {
      "table_name": "cscart_usergroup_privileges",
      "access_type": "ALL",
      "rows_examined_per_scan": 152,
      "rows_produced_per_join": 30,
      "filtered": "20.00",
      "cost_info": {
        "read_cost": "12.89",
        "eval_cost": "3.04",
        "prefix_cost": "15.93",
        "data_read_per_join": "3K"
      },
      "used_columns": [
        "usergroup_id",
        "privilege"
      ],
      "attached_condition": "(`mobikul_delivery_boy_livedemo`.`cscart_usergroup_privileges`.`usergroup_id` in (0,1))"
    }
  }
}