Hi I encounter same problem as your, do you already got the solution? Any
help will be appreciated, thank you~
On Saturday, November 14, 2015 at 1:40:21 AM UTC+7, evil...@gmail.com wrote:
>
> Hello.
> I've got the same model in two projects and want to copy data from one to
> another using model meta 'db_table' option:
>
>
> my_model_original_table_name = MyModel._meta.db_table
> MyModel._meta.db_table = 'old_project_table_name'
>
> old_objects = MyModel.objects.using('old_project_data_base').values('name')
> old_objects = list(old_objects)
>
> MyModel._meta.db_table = my_model_original_table_name
>
> for old_object in old_objects:
> new_object, created =
> MyModel.objects.update_or_create(name=old_object['name'])
>
>
> Old data retrieving works great, but when i try to execute last statement
> i get:
> "django.db.utils.ProgrammingError: missing FROM-clause entry for table
> "old_project_table_name""
>
> I tied to fetch data at the last stage instead of updating/creating
> (MyModel.objects.all()) and get the same error.
> The sql-query created by ORM is:
> SELECT "old_project_table_name"."name" FROM "new_project_table_name"
>
> Why is it so?
>
> I am using django 1.8.6 and PostgreSQL 9.4.5
> Django 1.7.* work fine.
>
>
> Thanks!
>
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