{
  "status": "pass",
  "evidence_positive": 1,
  "negative_mutations": 12,
  "native_binary64_numeric_loss_cases": [
    {
      "exact_text": "18446744073709551615",
      "native_binary64_exact_integer": "18446744073709551616",
      "native_json_literal": "1.8446744073709552e+19"
    },
    {
      "exact_text": "9223372036854775807",
      "native_binary64_exact_integer": "9223372036854775808",
      "native_json_literal": "9.223372036854776e+18"
    },
    {
      "exact_text": "9007199254740993",
      "native_binary64_exact_integer": "9007199254740992",
      "native_json_literal": "9007199254740992.0"
    }
  ],
  "new_rows_retained": 10,
  "preparation_inserts": 10,
  "source_mysql_type_contract": "four PHP64 integers and UINT64max string",
  "client_JS_Number_acceptance": "not tested; binary64 client limitation remains separate",
  "business_reads": 0,
  "dml": 0
}