Re: Exclude pg_largeobject form pg_dump

Andreas Joseph Krogh <andreas(at)visena(dot)com> writes:
> P tirsdag 08. mars 2016 kl. 15:43:37, skrev Adrian Klaver <
> adrian(dot)klaver(at)aklaver(dot)com <mailto:adrian(dot)klaver(at)aklaver(dot)com>>:
> Do you care about not dumping the pg_largeobject table or not dumping
> the data it contains?
>
> I have several tables with OID-columns and I'd like to dump my DB without any
> data in pg_largeobject (> 95% of the space is occupied by data in
> pg_largeobject).
> I've tried to exclude (using -T) the tables containing OID-columns but
> pg_largeobject is still dumped containing the data it seems.

A look at the pg_dump source code says that it skips blobs if any of
-s, -n, -t are used. There's a -b switch to undo that and include
them anyway, but no "inverse -b" to skip them in an otherwise-complete
dump.

So you could do something along the lines of pg_dump -t '*' ...
although this will result in *all* non-schema-named objects being
excluded, I believe, which might be a problem.

regards, tom lane