On Tue, 25 Aug 2020 at 12:24, Peter J. Holzer <hjp-pgsql@hjp.at> wrote:
On 2020-08-24 21:17:36 +0000, Dirk Krautschick wrote: > what would be the fastest or most effective way to load few (5-10) TB > of data from flat files into a postgresql database, including some 1TB > tables and blobs? > > There is the copy command but there is no way for native parallelism, > right? I have found pg_bulkload but haven't tested it yet. As far I > can see EDB has its EDB*Loader as a commercial option.
A single COPY isn't parallel, but you can run several of them in parallel (that's what pg_restore -j N does). So the total time may be dominated by your largest table (or I/O bandwidth).
hp
-- _ | Peter J. Holzer | Story must make more sense than reality. |_|_) | | | | | hjp@hjp.at | -- Charles Stross, "Creative writing __/ | http://www.hjp.at/ | challenge!"
This topic is interesting. Any examples for parallel copy?
