无法弄清楚为什么 Django ORM 使用 prefetch_lated() 给我这个错误

Question

我的 Django 应用程序中有以下数据模型：

class Company(models.Model):
    company_name = models.CharField(max_length=255)
    company_url = models.URLField(max_length=2048, blank=True, null=True)
    ...
    class Meta:
        db_table = 'company_table'

class PricingPlan(models.Model):
    plan_name = models.CharField(max_length=255, blank=True, null=True)
    ...
    company = models.ForeignKey(Company, related_name='pricing_plans', on_delete=models.CASCADE, blank=True, null=True)
    class Meta:
        db_table = 'pricing_plan_table'


class Feature(models.Model):
    feature_name = models.TextField(blank=True, null=True)
    plans = models.ManyToManyField(PricingPlan, related_name='features', blank=True)
    class Meta:
        db_table = 'feature_table'

class WebData(models.Model):
    company = models.OneToOneField(Company, related_name='web_data', on_delete=models.CASCADE)
    version = models.IntegerField(blank=True, null=True)
    ...
    class Meta:
        db_table = 'web_data_table'

现在，我想像这样查询数据库：

queryset = queryset.select_related('web_data').prefetch_related('pricing_plans', 'pricing_plans__features')

但出现此错误：

django.db.utils.ProgrammingError: relation "feature_table_plans" does not exist
LINE 1: ...e"."feature_name" FROM "feature_table" INNER JOIN "feature_t...

关于如何解决这个问题有什么想法吗？