SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    1900, 1813, 1767, 1764, 1893, 1857, 2147, 
    1790, 1877, 1858, 1876, 1841, 1796, 
    2329, 2330, 1860, 2148, 2152, 1868, 
    1881, 2028, 2118, 2116, 2117, 1966, 
    1967, 1965, 2026, 2027, 2131, 1938, 
    2025, 1899, 1910, 1872, 1850, 1883, 
    1810, 1851, 1884
  )

Query time 0.00066

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "28.01"
    },
    "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": 40,
      "rows_produced_per_join": 40,
      "filtered": "100.00",
      "index_condition": "(`cscartdevel`.`cscart_products`.`product_id` in (1900,1813,1767,1764,1893,1857,2147,1790,1877,1858,1876,1841,1796,2329,2330,1860,2148,2152,1868,1881,2028,2118,2116,2117,1966,1967,1965,2026,2027,2131,1938,2025,1899,1910,1872,1850,1883,1810,1851,1884))",
      "cost_info": {
        "read_cost": "24.01",
        "eval_cost": "4.00",
        "prefix_cost": "28.01",
        "data_read_per_join": "182K"
      },
      "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",
        "parent_product_id",
        "buy_now_url",
        "units_in_product",
        "show_price_per_x_units",
        "ab__stickers_manual_ids",
        "ab__stickers_generated_ids",
        "ss_omnibus_display",
        "rp_enable",
        "rp_pre_auth",
        "rp_pay_type",
        "rp_period",
        "rp_free_period",
        "rp_shipping_cost",
        "rp_addon_id",
        "rp_struct_billing",
        "ss_deepl_auto_translate",
        "ss_deepl_changed_fields"
      ]
    }
  }
}