/* 10 queries that have longest execution time in aggregate */
SELECT
interval '1 millisecond' * total_time AS total_exec_time, to_char((total_time/sum(total_time) OVER()) * 100, 'FM90D0') || '%' AS prop_exec_time, to_char(calls, 'FM999G999G999G990') AS ncalls, interval '1 millisecond' * (blk_read_time + blk_write_time) AS sync_io_time, query AS query
FROM
pg_stat_statements
WHERE
userid = ( SELECT usesysid FROM pg_user WHERE usename = current_user LIMIT 1 )
ORDER BY
total_time DESC
LIMIT
10;