django在国外反向查找有懒查询吗？

Question

我有这个代码：

def get_percentage_completions(task: Task, date_start: date, date_end: date):
    result = {}
    execution_percents = task.execution_percents.all()

    if execution_percents.exists():
        year, week, _ = date_start.isocalendar()
        task_execution_percent = execution_percents.filter(year__lte=year, week__lte=week) \
            .order_by('year', 'week').last()
        execution_percent = task_execution_percent.percent if task_execution_percent else 0
        while date_end >= date_start:
            year, week, _ = date_start.isocalendar()
            if execution_percents.filter(year=year, week=week).exists():
                task_execution_percent = execution_percents.filter(year=year, week=week).first()
                execution_percent = task_execution_percent.percent
            key = f"{year}_{week}"
            result[key] = round(execution_percent)
            date_start += timedelta(days=7)
    return result

我从我的模型“任务”中获取相关对象。 当我定义 execution_persents 变量时，我认为我在第二行点击了一次 db， 但实际上，当我在 execution_persents 变量后注释所有行时，我的调试工具栏减少了查询量。 这意味着我在循环中点击了 db。

我可以在第二行只点击一次数据库吗？