SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    12684, 12685, 12686, 12687, 12688, 12689, 
    12690, 12691, 12692, 12693, 12694, 
    12695, 12696, 12697, 12698, 12699, 
    12700, 12701, 12702, 12703, 12704, 
    12705, 12706, 12707, 12708, 12709, 
    12710, 12711, 12712, 12713
  )

Query time 0.00068

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "21.01"
    },
    "table": {
      "table_name": "cscart_products",
      "access_type": "range",
      "possible_keys": [
        "PRIMARY"
      ],
      "key": "PRIMARY",
      "used_key_parts": [
        "product_id"
      ],
      "key_length": "3",
      "rows_examined_per_scan": 30,
      "rows_produced_per_join": 30,
      "filtered": "100.00",
      "index_condition": "(`test2_gaseus`.`cscart_products`.`product_id` in (12684,12685,12686,12687,12688,12689,12690,12691,12692,12693,12694,12695,12696,12697,12698,12699,12700,12701,12702,12703,12704,12705,12706,12707,12708,12709,12710,12711,12712,12713))",
      "cost_info": {
        "read_cost": "18.01",
        "eval_cost": "3.00",
        "prefix_cost": "21.01",
        "data_read_per_join": "195K"
      },
      "used_columns": [
        "product_id",
        "product_code",
        "product_type",
        "status",
        "company_id",
        "list_price",
        "amount",
        "weight",
        "length",
        "width",
        "height",
        "shipping_freight",
        "low_avail_limit",
        "timestamp",
        "updated_timestamp",
        "usergroup_ids",
        "is_edp",
        "edp_shipping",
        "unlimited_download",
        "tracking",
        "free_shipping",
        "zero_price_action",
        "is_pbp",
        "is_op",
        "is_oper",
        "is_returnable",
        "return_period",
        "avail_since",
        "out_of_stock_actions",
        "localization",
        "min_qty",
        "max_qty",
        "qty_step",
        "list_qty_count",
        "tax_ids",
        "age_verification",
        "age_limit",
        "options_type",
        "exceptions_type",
        "details_layout",
        "shipping_params",
        "facebook_obj_type",
        "fiscal_data_1212",
        "mark_code_type",
        "parent_product_id",
        "yml2_brand",
        "yml2_origin_country",
        "yml2_store",
        "yml2_pickup",
        "yml2_delivery",
        "yml2_adult",
        "yml2_delivery_options",
        "yml2_bid",
        "yml2_model",
        "yml2_sales_notes",
        "yml2_type_prefix",
        "yml2_offer_type",
        "yml2_market_category",
        "yml2_manufacturer_warranty",
        "yml2_expiry",
        "yml2_purchase_price",
        "yml2_description",
        "yml2_cpa",
        "buy_now_url",
        "units_in_product",
        "show_price_per_x_units"
      ]
    }
  }
}