POSTGRES:
commentsSection=# explain analyze select * from country where id = 10000000;
                                                      QUERY PLAN
-----------------------------------------------------------------------------------------------------------------------
 Index Scan using country_pkey on country  (cost=0.42..8.44 rows=1 width=79) (actual time=0.045..0.045 rows=0 loops=1)
   Index Cond: (id = 10000000)
 Planning time: 24.991 ms
 Execution time: 17.280 ms
(4 rows)

RAVENDB:
from Country where songId = '10000000' => 48ms