Django原始SQL查询

Question

I have a this model:

class Document(models.Model): 
    data = models.TextField() 
    users = models.ManyToManyField(User)

How would you convert the following query for the model above to raw sql?

Document.objects.annotate(num_users=Count(users))

I need to switch this to raw sql because there is a bug in django when using MySql that makes annotate very slow.

But I'm not sure how to handle the many to many field in raw sql..

Document.objects.raw('SELECT ...')

Answer 1

将Django查询转换为SQL的最简单方法是简单地查看Django生成的SQL： 如何查看Django正在运行的原始SQL查询？

Answer 2

you can get corresponding query the way mentioned below:

queryset = Document.objects.annotate(num_users=Count(users))  
sql_query = queryset.query
print(sql_query)