Order by without collate
1	Ё
2	А
2	Я
1	а
2	я
1	ё
Order by with collate
1	а
2	А
1	ё
1	Ё
2	я
2	Я
Order by tuple without collate
1	Ё
1	а
1	ё
2	А
2	Я
2	я
Order by tuple with collate
1	а
1	ё
1	Ё
2	А
2	я
2	Я
Order by without collate
1	Ё
2	А
2	Я
1	а
2	я
1	ё
1	\N
2	\N
Order by with collate
1	а
2	А
1	ё
1	Ё
2	я
2	Я
1	\N
2	\N
Order by tuple without collate
1	Ё
1	а
1	ё
1	\N
2	А
2	Я
2	я
2	\N
Order by tuple with collate
1	а
1	ё
1	Ё
1	\N
2	А
2	я
2	Я
2	\N