t.Errorf("WriteHeader() = got %v, want non-nil error", err)
		}
		if _, err := tw.Write(nil); err == nil {
			t.Errorf("Write() = %v, want non-nil error", err)
		}
		if err := tw.Flush(); err == nil {
			t.Errorf("Flush() = %v, want non-nil error", err)
		}
		if err := tw.Close(); err == nil {
			t.Errorf("Close() = %v, want non-nil error", err)
		}
	})
}

	if err := DB.Create(&product).Error; err != nil {
		t.Fatalf("failed to create product with nil any field, got error %v", err)
	}

	// Test updating/saving record with nil any field (should not panic)
	product.Name = "Product 1 (Updated)"
	if err := DB.Save(&product).Error; err != nil {
		t.Fatalf("failed to save product with nil any field, got error %v", err)
	}

	// Verify the record was saved correctly

	users2, err := db.Joins(clause.LeftJoin.Association("Manager"), nil).
		Joins(clause.LeftJoin.Association("Manager.Company"), nil).
		Joins(clause.LeftJoin.Association("Manager.NamedPet.Toy"), nil).
		Joins(clause.LeftJoin.Association("NamedPet.Toy"), nil).
		Joins(clause.LeftJoin.Association("NamedPet").As("t"), nil).
		Where(map[string]any{"id": userIDs}).Find(ctx)

	if err != nil {
		t.Fatalf("Failed to load with joins, got error: %v", err)

	connPool := db.ConnPool
	if db.Statement != nil && db.Statement.ConnPool != nil {
		connPool = db.Statement.ConnPool
	}
	if tx, ok := connPool.(*sql.Tx); ok && tx != nil {
		return (*sql.DB)(reflect.ValueOf(tx).Elem().FieldByName("db").UnsafePointer()), nil
	}

	if dbConnector, ok := connPool.(GetDBConnector); ok && dbConnector != nil {
		if sqldb, err := dbConnector.GetDBConn(); sqldb != nil || err != nil {
			return sqldb, err
		}

					field.ReflectValueOf(ctx, value).SetInt(int64(**data))
				}
			case **int8:
				if data != nil && *data != nil {
					field.ReflectValueOf(ctx, value).SetInt(int64(**data))
				}
			case **int16:
				if data != nil && *data != nil {
					field.ReflectValueOf(ctx, value).SetInt(int64(**data))
				}
			case **int32:
				if data != nil && *data != nil {

	if err := b.UnreadByte(); err == nil {
		t.Fatal("UnreadByte after ReadByte at EOF: got no error")
	}

	// check not at EOF
	b.WriteString("abcdefghijklmnopqrstuvwxyz")

	// after unsuccessful read
	if n, err := b.Read(nil); n != 0 || err != nil {
		t.Fatalf("Read(nil) = %d,%v; want 0,nil", n, err)
	}
	if err := b.UnreadByte(); err == nil {
		t.Fatal("UnreadByte after Read(nil): got no error")
	}

		return
	}
	if b.buf == nil {
		b.buf = make([]byte, defaultBufSize)
	}
	b.err = nil
	b.n = 0
	b.wr = w
}

// Flush writes any buffered data to the underlying [io.Writer].
func (b *Writer) Flush() error {
	if b.err != nil {
		return b.err
	}
	if b.n == 0 {
		return nil
	}
	n, err := b.wr.Write(b.buf[0:b.n])
	if n < b.n && err == nil {
		err = io.ErrShortWrite
	}

		}
	}

	// assign model values
	if stmt.Model == nil {
		stmt.Model = stmt.Dest
	} else if stmt.Dest == nil {
		stmt.Dest = stmt.Model
	}

	// parse model values
	if stmt.Model != nil {
		if err := stmt.Parse(stmt.Model); err != nil && (!errors.Is(err, schema.ErrUnsupportedDataType) || (stmt.Table == "" && stmt.TableExpr == nil && stmt.SQL.Len() == 0)) {

							return err
						}
					}
				}

				for _, idx := range parseIndexes {
					if !queryTx.Migrator().HasIndex(value, idx.Name) {
						if err := execTx.Migrator().CreateIndex(value, idx.Name); err != nil {
							return err
						}
					}
				}

				return nil
			}); err != nil {
				return err
			}
		}
	}

func OpenReader(name string) (*ReadCloser, error) {
	f, err := os.Open(name)
	if err != nil {
		return nil, err
	}
	fi, err := f.Stat()
	if err != nil {
		f.Close()
		return nil, err
	}
	r := new(ReadCloser)
	if err = r.init(f, fi.Size()); err != nil && err != ErrInsecurePath {
		f.Close()
		return nil, err
	}
	r.f = f
	return r, err
}