SELECT store_id,
# DATE(return_date),
COUNT(inventory_id) AS returned_at_2005_06_01
FROM inventory
JOIN rental USING(inventory_id)
WHERE return_date BETWEEN '2005-06-01 00:00:00' AND '2005-06-01 23:59:59'
GROUP BY 1
ORDER BY 2
;
show status like 'Last_query_cost';