SQLCompiler do not escape names correctly

[Artem Skoretskiy]

I generate custom SQL and I have tried to use SQLCompiler to escape (quote) table names. But it does not work as expected:

>>> from django.contrib.auth.models import User
>>> qs = User.objects.all()
>>> compiler = qs.query.get_compiler(using=qs.db)
>>> name = 'b"; drop table "world'
>>> sql = 'alter table x rename column a to {};'.format(compiler.quote_name_unless_alias(name))
>>> print(sql)
alter table x rename column a to "b"; drop table "world";

I would expect that it would return name that I could use in raw SQL.

You could try youself:

docker run -ti --rm python:3.7-alpine sh -c "pip install -q https://github.com/django/django/archive/master.zip && django-admin.py startproject project . && ./manage.py shell"

[Tim Graham]

SQLCompiler isn't a public API. Any usage is at your own risk.