}
	buf, err = madmin.EncryptData(secretKey, buf)
	if err != nil {
		c.Fatalf("unexpected encryption err: %v", err)
	}

	req.ContentLength = int64(len(buf))
	sum := sha256.Sum256(buf)
	req.Header.Set("X-Amz-Content-Sha256", hex.EncodeToString(sum[:]))
	req.Body = io.NopCloser(bytes.NewReader(buf))
	req = signer.SignV4(*req, accessKey, secretKey, "", "")

	// 3.1 Execute the request.

		t.Error("Raw sql to update records")
	}

	DB.Exec("update users set age=? where name = ?", gorm.Expr("age * ? + ?", 2, 10), "jinzhu-raw")

	var age int
	DB.Raw("select sum(age) from users where name = ?", "jinzhu-raw").Scan(&age)

	if age != ((1+10+20)*2 + 30) {
		t.Errorf("Invalid age, got %v", age)
	}
}

func TestRowsWithGroup(t *testing.T) {
	users := []User{

 * <Double>}:
 *
 * <ul>
 *   <li>Improved memory compactness and locality.
 *   <li>Can be queried without allocating garbage.
 *   <li>Access to {@code DoubleStream} features (like {@link DoubleStream#sum}) using {@code
 *       stream()} instead of the awkward {@code stream().mapToDouble(v -> v)}.
 * </ul>
 *
 * <p>Disadvantages compared to {@code ImmutableList<Double>}:
 *
 * <ul>

   * order.
   */
  @Override
  // TODO(kevinb): caveats about equivalence-relation?
  boolean equals(@CheckForNull Object object);

  /**
   * Returns the hash code for this multiset. This is defined as the sum of
   *
   * <pre>{@code
   * ((element == null) ? 0 : element.hashCode()) ^ count(element)
   * }</pre>
   *
   * <p>over all distinct elements in the multiset. It follows that a multiset and its entry set

      b += minDeltaOrZero; // sets b to min(old a, b)
      a >>= Long.numberOfTrailingZeros(a); // divide out all 2s, since 2 doesn't divide b
    }
    return a << min(aTwos, bTwos);
  }

  /**
   * Returns the sum of {@code a} and {@code b}, provided it does not overflow.
   *
   * @throws ArithmeticException if {@code a + b} overflows in signed {@code long} arithmetic
   */

      }
      return super.equals(obj);
    }

    @Override
    public int hashCode() {
      /*
       * The sum of the sums of the hash codes in each subset is just the sum of
       * each input element's hash code times the number of sets that element
       * appears in. Each element appears in exactly half of the 2^n sets, so:
       */

// called after a successful TF_NewWhile() call.
TF_CAPI_EXPORT extern void TF_AbortWhile(const TF_WhileParams* params);

// Adds operations to compute the partial derivatives of sum of `y`s w.r.t `x`s,
// i.e., d(y_1 + y_2 + ...)/dx_1, d(y_1 + y_2 + ...)/dx_2...
//
// `dx` are used as initial gradients (which represent the symbolic partial
// derivatives of some loss function `L` w.r.t. `y`).

  // the assured concurrency value (ACV) --- the number of requests
  // that may be executing at a time --- for each such priority
  // level:
  //
  //             ACV(l) = ceil( SCL * ACS(l) / ( sum[priority levels k] ACS(k) ) )
  //
  // bigger numbers of ACS mean more reserved concurrent requests (at the
  // expense of every other PL).
  // This field has a default value of 30.
  // +optional

  // the assured concurrency value (ACV) --- the number of requests
  // that may be executing at a time --- for each such priority
  // level:
  //
  //             ACV(l) = ceil( SCL * ACS(l) / ( sum[priority levels k] ACS(k) ) )
  //
  // bigger numbers of ACS mean more reserved concurrent requests (at the
  // expense of every other PL).
  // This field has a default value of 30.
  // +optional

			h.Write([]byte{0})
		}

		buffer := make([]byte, test.length)
		n, err := xlStorage.ReadFile(context.Background(), volume, test.file, int64(test.offset), buffer, NewBitrotVerifier(test.algorithm, h.Sum(nil)))

		switch {
		case err == nil && test.expError != nil:
			t.Errorf("Test %d: Expected error %v but got none.", i, test.expError)
		case err == nil && n != int64(test.length):