On Tue, 25 Aug 2020 at 12:24, Peter J. Holzer <hjp-pgsql@xxxxxx> 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@xxxxxx | -- Charles Stross, "Creative writing
__/ | http://www.hjp.at/ | challenge!"
This topic is interesting. Any examples for parallel copy?
Regards,
SS
