SELECT 
  product_id 
FROM 
  netting_products 
WHERE 
  cp_is_installment_product = 'Y'

Query time 0.00042

JSON explain

{
  "query_block": {
    "select_id": 1,
    "nested_loop": [
      {
        "table": {
          "table_name": "netting_products",
          "access_type": "ALL",
          "rows": 230,
          "filtered": 100,
          "attached_condition": "netting_products.cp_is_installment_product = 'Y'"
        }
      }
    ]
  }
}