Django 2.1.2, Postgres 10
Model:
class Product(models.Model):
product_id = models.AutoField("产品ID", primary_key=True)
...
class SpecItem(models.Model):
spec_id = models.AutoField(primary_key=True)
product = models.ForeignKey(Product, on_delete=models.CASCADE,
related_name="product_specs", null=True)
price = models.FloatField("价格", default=0)
...
When exwcute
qs = Product.objects.filter(valid=1)
serializer = ProductSerializer(
qs.annotate(cnt=Count("product_specs"),
min_price=Min("product_specs__price")).filter(cnt__gt=0)
.order_by("min_price")[offset:offset + limit],
context={"request": request},
many=True)
It says django.db.utils.ProgrammingError: column
"prome_product.product_name" must appear in the GROUP BY clause or be used
in an aggregate function
Can anyone help me?
--
You received this message because you are subscribed to the Google Groups
"Django users" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to django-users+unsubscr...@googlegroups.com.
To post to this group, send email to django-users@googlegroups.com.
Visit this group at https://groups.google.com/group/django-users.
To view this discussion on the web visit
https://groups.google.com/d/msgid/django-users/64c1b2f0-6125-45e0-a08b-7d5d3426f16d%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
