issues: 731740458

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id node_id number title user state locked assignee milestone comments created_at updated_at closed_at author_association pull_request body repo type active_lock_reason performed_via_github_app reactions draft state_reason
731740458 MDU6SXNzdWU3MzE3NDA0NTg= 191 Idea: @db.register_function(deterministic=True) 9599 closed 0     2 2020-10-28T19:45:18Z 2020-10-28T21:31:06Z 2020-10-28T21:31:06Z OWNER  

Python 3.8 added a deterministic parameter to db.create_function(): https://docs.python.org/3/library/sqlite3.html#sqlite3.Connection.create_function

sqlite-utils could expose this in the decorator, only actually applying it if the Python version supports it (using feature detection) - since nothing will break if it's not applied.

https://sqlite-utils.readthedocs.io/en/stable/python-api.html#registering-custom-sql-functions

```python db = Database(memory=True)

@db.register_function(deterministic=True) def reverse_string(s): return "".join(reversed(list(s))) ```

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