This can be done once every few years, after enough of them has been added for each app. This pretty much only has the effect of reducing file clutter, and making it slightly faster to run tests that rely on the database (most of the tests) - especially while running the code in debug mode.
This can be done once every few years, after enough of them has been added for each app. This pretty much only has the effect of reducing file clutter, and making it slightly faster to run tests that rely on the database (most of the tests) - especially while running the code in debug mode.
See the Django docs for squashing migrations.