https://www.citusdata.com/blog/2017/11/08/faster-bulk-loading-in-postgresql-with-copy/
origin - http://www.pipiscrew.com/?p=11118 faster-bulk-loading-in-postgres-with-copy
https://www.citusdata.com/blog/2017/11/08/faster-bulk-loading-in-postgresql-with-copy/
origin - http://www.pipiscrew.com/?p=11118 faster-bulk-loading-in-postgres-with-copy