SELECT 
  * 
FROM 
  cscart_vendor_plans 
LIMIT 
  1

Query time 0.00044

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "0.45"
    },
    "table": {
      "table_name": "cscart_vendor_plans",
      "access_type": "ALL",
      "rows_examined_per_scan": 2,
      "rows_produced_per_join": 2,
      "filtered": "100.00",
      "cost_info": {
        "read_cost": "0.25",
        "eval_cost": "0.20",
        "prefix_cost": "0.45",
        "data_read_per_join": "208"
      },
      "used_columns": [
        "plan_id",
        "status",
        "position",
        "is_default",
        "price",
        "periodicity",
        "commission",
        "fixed_commission",
        "products_limit",
        "revenue_limit",
        "vendor_store",
        "categories",
        "storefronts",
        "lowers_allowed_balance",
        "grace_period_to_refill_balance",
        "usergroups",
        "ga_vendors_tracking",
        "cp_is_labels_avail"
      ]
    }
  }
}