Add migration/load command
As we now have pgbench, we might want to run benches using it. Using picostress, we can load data to test tables, but we want also generate an SQL file with create and insert queries to use it with pgbench.
As we now have pgbench, we might want to run benches using it. Using picostress, we can load data to test tables, but we want also generate an SQL file with create and insert queries to use it with pgbench.