id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	tt	ref	tournament_team-unique_pair,tournament_team-tournament_id,tournament_team-team_id	tournament_team-team_id	4	const	2	Using where; Using temporary; Using filesort
1	SIMPLE	tournament	eq_ref	PRIMARY,team_season_id	PRIMARY	4	bsr.tt.tournament_id	1	Using where