issues: 777535402

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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
777535402	MDU6SXNzdWU3Nzc1MzU0MDI=	215	Use _counts to speed up counts	9599	closed	0			9	2021-01-02T22:30:17Z	2021-01-03T20:19:40Z	2021-01-03T20:19:40Z	OWNER		Utility mechanism for taking advantage of the new `_counts` table from #212 would be nice. These can trigger automatically if the `_counts` table exists, but since `sqlite-utils` needs to work against any existing database there should be a way of opting out of this optimization.	140912432	issue

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