id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	sp	range	idx-stats_player-stats_layer,idx-stats_player-player_id,idx-stats_player-team_id,idx-stats_player-season_id	idx-stats_player-stats_layer	8	NULL	23	Using index condition; Using where; Using temporary; Using filesort
1	SIMPLE	hdbk_season	eq_ref	PRIMARY	PRIMARY	4	bsr.sp.season_id	1	NULL