SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    286, 278, 280, 282, 247, 255, 256, 257, 
    249, 250, 251, 252, 253, 254, 248, 245, 
    246, 66, 166, 192, 194, 195, 196, 197, 
    198, 199, 200, 201, 202, 203, 204, 230, 
    231, 232, 233, 234, 235, 236, 237, 238, 
    239, 78, 79, 80, 81, 82, 83, 84, 85, 86, 
    87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 
    97, 100, 101, 102
  )

Query time 0.00251

JSON explain

{
  "query_block": {
    "select_id": 1,
    "nested_loop": [
      {
        "table": {
          "table_name": "cscart_products",
          "access_type": "ALL",
          "possible_keys": ["PRIMARY"],
          "rows": 258,
          "filtered": 24.80620193,
          "attached_condition": "cscart_products.product_id in (286,278,280,282,247,255,256,257,249,250,251,252,253,254,248,245,246,66,166,192,194,195,196,197,198,199,200,201,202,203,204,230,231,232,233,234,235,236,237,238,239,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,100,101,102)"
        }
      }
    ]
  }
}