Ole Gjerde wrote:
>
> On Fri, 18 Jun 1999, Bruce Momjian wrote:
> [snip - mdtruncate patch]
>
> While talking about this whole issue, there is one piece missing.
> Currently there is no way to dump a database/table over 2 GB.
> When it hits the 2GB OS limit, it just silently stops and gives no
> indication that it didn't finish.
>
> It's not a problem for me yet, but I'm getting very close. I have one
> database with 3 tables over 2GB(in postgres space), but they still come
> out under 2GB after a dump. I can't do a pg_dump on the whole database
> however, which would be very nice.
>
> I suppose it wouldn't be overly hard to have pg_dump/pg_dumpall do
> something similar to what postgres does with segments. I haven't looked
> at it yet however, so I can't say for sure.
>
> Comments?
As pg_dump writes to stdout, you can just use standard *nix tools:
1. use compressed dumps
pg_dump really_big_db | gzip > really_big_db.dump.gz
reload with
gunzip -c really_big_db.dump.gz | psql newdb
or
cat really_big_db.dump.gz | gunzip | psql newdb
2. use split
pg_dump really_big_db | split -b 1m - really_big_db.dump.
reload with
cat really_big_db.dump.* | pgsql newdb
-----------------------
Hannu
