\copy (select username from auth_user order by date_joined desc limit 10000) to 'latest-users.csv' with csv;
$ pg_dump -U username -h hostname databasename > dump.sql
\l
\c dbname username
\i filename
\h truncate
SELECT pid, age(clock_timestamp(), query_start), usename, query
FROM pg_stat_activity
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'
ORDER BY query_start desc;