Crashes Datasette on startup if run against an immutable database

[simonw]

See simonw/latest-datasette-with-all-plugins#3 (comment)

When I fix this I can uncomment this line in that project: https://github.com/simonw/latest-datasette-with-all-plugins/blob/29fe2eb28a6b0a18d63fad178e55f429ef81fd52/plugins.txt#L34

[simonw]

Relevant code:

datasette-saved-queries/datasette_saved_queries/__init__.py

Lines 26 to 32 in 48abb41

	@hookimpl
	def startup(datasette):
	async def inner():
	db = datasette.get_database()
	await db.execute_write_fn(create_tables, block=True)
	return inner

datasette-saved-queries/datasette_saved_queries/__init__.py

Lines 5 to 10 in 48abb41

	def create_tables(conn):
	db = sqlite_utils.Database(conn)
	if not db["saved_queries"].exists():
	db["saved_queries"].create(
	{"name": str, "sql": str, "author_id": str,}, pk="name"
	)