On Mon, Aug 14, 2017 at 6:24 AM, Mariel Cherkassky < mariel.cherkas...@gmail.com> wrote:
> I have performance issues with two big tables. Those tables are located on > an oracle remote database. I'm running the quert : insert into > local_postgresql_table select * from oracle_remote_table. > > The first table has 45M records and its size is 23G. The import of the > data from the oracle remote database is taking 1 hour and 38 minutes. > To investigate this, I'd decouple the two steps and see how long each one takes: \copy (select * from oracle_remote_table) to /tmp/tmp with binary \copy local_postresql_table from /tmp/tmp with binary Cheers, Jeff
