Re: Most effective and fast way to load few Tbyte of data from flat files into postgresql

On Tue, 25 Aug 2020 at 12:24, Peter J. Holzer <hjp-pgsql(at)hjp(dot)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(at)hjp(dot)at | -- Charles Stross, "Creative writing
> __/ | http://www.hjp.at/ | challenge!"
>

This topic is interesting. Any examples for parallel copy?

Regards,

SS