id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	match_player_stats	index_merge	PRIMARY,idx-match_stats-match_id,idx-match_stats-player_id	idx-match_stats-player_id,PRIMARY	8,4	NULL	1	Using intersect(idx-match_stats-player_id,PRIMARY); Using where