SELECT 
  cscart_products.*, 
  cscart_products.ebay_status, 
  cscart_products.ebay_template_id 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    21391, 21392, 21393, 21394, 21395, 21396, 
    21397, 21398, 21399, 21400, 21401, 
    21402, 21403, 21404, 21405, 21406
  )

Query time 0.00039

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "table_name": "cscart_products",
      "access_type": "range",
      "possible_keys": ["PRIMARY"],
      "key": "PRIMARY",
      "key_length": "3",
      "used_key_parts": ["product_id"],
      "rows": 16,
      "filtered": 100,
      "index_condition": "cscart_products.product_id in (21391,21392,21393,21394,21395,21396,21397,21398,21399,21400,21401,21402,21403,21404,21405,21406)"
    }
  }
}

Result

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 payment_ids staff_notes purchase_qty social_proof_popup_product_output ab__stickers_manual_ids ab__stickers_generated_ids is_stock_split_by_warehouses ebay_template_id product_hash ebay_price package_type ebay_status ebay_override_price is_invoice ei_for_user_id ei_status ei_order_id cp_in_stock_status cp_in_stock_specific_status cp_out_of_stock_status cp_out_of_stock_specific_status cp_extended_marketing_prohibit_review
21391 98616T6000 P A 1 0.00 0 0.600 0 0 0 0.00 0 1715937452 1721911507 0 N N N N N N N N Y 14 0 B 9 N 0 0 0.000 1.000 0 48 Y N 0 Letter N N unpaid 0 0 0 N
21392 985102W500 P A 1 0.00 0 0.400 0 0 0 0.00 0 1715937452 1721911507 0 N N N N N N N N Y 14 0 B 9 N 0 0 0.000 1.000 0 93 Y N 0 Letter N N unpaid 0 0 0 N
21393 98610T6000 P A 1 0.00 0 8.500 0 0 0 0.00 0 1715937452 1721911507 0 N N N N N N N N Y 14 0 B 9 N 0 0 0.000 1.000 0 1 Y N 0 Letter N N unpaid 0 0 0 N
21394 98617T6000 P A 1 0.00 0 0.500 0 0 0 0.00 0 1715937452 1721911507 0 N N N N N N N N Y 14 0 B 9 N 0 0 0.000 1.000 0 100 Y N 0 Letter N N unpaid 0 0 0 N
21395 98619T6000 P A 1 0.00 0 1.500 0 0 0 0.00 0 1715937452 1721911507 0 N N N N N N N N Y 14 0 B 9 N 0 0 0.000 1.000 0 2 Y N 0 Letter N N unpaid 0 0 0 N
21396 98611T6000 P A 1 0.00 0 7.500 0 0 0 0.00 0 1715937452 1721911507 0 N N N N N N N N Y 14 0 B 9 N 0 0 0.000 1.000 0 39 Y N 0 Letter N N unpaid 0 0 0 N
21397 98635T6000 P A 1 0.00 0 0.400 0 0 0 0.00 0 1715937452 1721911507 0 N N N N N N N N Y 14 0 B 9 N 0 0 0.000 1.000 0 46 Y N 0 Letter N N unpaid 0 0 0 N
21398 911113B000 P A 1 0.00 0 0.100 0 0 0 0.00 0 1715937452 1721911507 0 N N N N N N N N Y 14 0 B 9 N 0 0 0.000 1.000 0 4 Y N 0 Letter N N unpaid 0 0 0 N
21399 98718T6000 P A 1 0.00 0 0.100 0 0 0 0.00 0 1715937452 1721911507 0 N N N N N N N N Y 14 0 B 9 N 0 0 0.000 1.000 0 83 Y N 0 Letter N N unpaid 0 0 0 N
21400 98700T6000 P A 1 0.00 0 2.500 0 0 0 0.00 0 1715937452 1721911507 0 N N N N N N N N Y 14 0 B 9 N 0 0 0.000 1.000 0 89 Y N 0 Letter N N unpaid 0 0 0 N
21401 987173J000 P A 1 0.00 0 0.100 0 0 0 0.00 0 1715937452 1721911507 0 N N N N N N N N Y 14 0 B 9 N 0 0 0.000 1.000 0 6 Y N 0 Letter N N unpaid 0 0 0 N
21402 98820T6000 P A 1 0.00 0 0.800 0 0 0 0.00 0 1715937452 1721911507 0 N N N N N N N N Y 14 0 B 9 N 0 0 0.000 1.000 0 72 Y N 0 Letter N N unpaid 0 0 0 N
21403 98812T6000 P A 1 0.00 0 0.400 0 0 0 0.00 0 1715937452 1721911507 0 N N N N N N N N Y 14 0 B 9 N 0 0 0.000 1.000 0 87 Y N 0 Letter N N unpaid 0 0 0 N
21404 98850T6000 P A 1 0.00 0 0.600 0 0 0 0.00 0 1715937452 1721911507 0 N N N N N N N N Y 14 0 B 9 N 0 0 0.000 1.000 0 94 Y N 0 Letter N N unpaid 0 0 0 N
21405 98960T6000 P A 1 0.00 0 0.300 0 0 0 0.00 0 1715937452 1721911507 0 N N N N N N N N Y 14 0 B 9 N 0 0 0.000 1.000 0 46 Y N 0 Letter N N unpaid 0 0 0 N
21406 98950T6000 P A 1 0.00 0 0.400 0 0 0 0.00 0 1715937452 1721911507 0 N N N N N N N N Y 14 0 B 9 N 0 0 0.000 1.000 0 2 Y N 0 Letter N N unpaid 0 0 0 N