EXPLAIN (ANALYZE, COSTS, VERBOSE, BUFFERS) -- using default substitutions select o_orderpriority, count(*) as order_count from orders where o_orderdate >= date '1993-07-01'and o_orderdate < date(date '1993-07-01' + interval '3month') and exists (select * from lineitem where l_orderkey = o_orderkey and l_commitdate < l_receiptdate) group by o_orderpriority order by o_orderpriority; ;