Обсуждение: pg_dump of a big table
I need to do a backup from a big table that is in a machine with almost no disk space.
Running pg_dump from another machine needs much space on the DB host? Or it just outputs the data as it goes?
Is there a better way to do this?
Thanks,
Nelson
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On Mon, Jul 13, 2009 at 06:57:43PM +0000, Nelson Correia wrote: > Running pg_dump from another machine needs much space on the DB > host? Or it just outputs the data as it goes? pg_dump should use very little space on the server, it just streams it out to where ever you tell it. You could run pg_dump on another host, or do something like: pg_dump mydb | gzip | ssh otherbox "cat > out.sql.gz" -- Sam http://samason.me.uk/
On Mon, Jul 13, 2009 at 3:29 PM, Sam Mason <sam@samason.me.uk> wrote:
Yes, from the other machine, run:
[user@notmyhost ]$ pg_dump -h myhost -U mydbuser mydb > out.sql
--Scott
On Mon, Jul 13, 2009 at 06:57:43PM +0000, Nelson Correia wrote:pg_dump should use very little space on the server, it just streams it
> Running pg_dump from another machine needs much space on the DB
> host? Or it just outputs the data as it goes?
out to where ever you tell it. You could run pg_dump on another host,
or do something like:
pg_dump mydb | gzip | ssh otherbox "cat > out.sql.gz"
Yes, from the other machine, run:
[user@notmyhost ]$ pg_dump -h myhost -U mydbuser mydb > out.sql
--Scott