As a Rails user the best feature for me is the improvement of pg_stat_statements to normalize queries: https://wiki.postgresql.org/wiki/What%27s_new_in_PostgreS

As a Rails user the best feature for me is the improvement of pg_stat_statements to normalize queries: https://wiki.postgresql.org/wiki/What%27s_new_in_PostgreSQL_9.2#pg_stat_statements https://wiki.postgresql.org/wiki/What%27s_new_in_PostgreSQL_... That means I get a real overview on what Rails is actually doing and what takes the longest.