id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	catalogue_items_to_categories	index	PRIMARY	PRIMARY	8	NULL	778	Using index
1	SIMPLE	catalogue_categories	eq_ref	PRIMARY	PRIMARY	4	sculptured.catalogue_items_to_categories.category_id	1	Using where
1	SIMPLE	catalogue_items	eq_ref	PRIMARY	PRIMARY	4	sculptured.catalogue_items_to_categories.item_id	1	Using where