Обсуждение: pg_restore problem

> Are you sure your restoring to an empty database? If you try to restore
> your dump into the database you dumped it from (without first
> drop/create) it will take forever as you'll have all kinds of data
> collisions (imagine every insert into a table erroring out due to
> duplicate primary key).

Yes, I'm sure it is an empty database. I didn't mention in the e-mail,
but the complete script I did is:

$pg_dump  -s DB1 > DB1.sql

$pg_dump -a -b -Fc -f  DB1.dump -o -v DB1

$dropdb DB2

$createdb DB2

$psql DB2 <DB1.sql

$pg_restore -a -d DB2 -Fc -o -v DB1.dump

So it's a brand new DB I'm restoring to.

> As for the -Ft vs. -Fc size question, the tar format is not a compressed
> format, while the "c"ustom format is.
Thanks.

Ricardo.

Are you sure your restoring to an empty database? If you try to restore
your dump into the database you dumped it from (without first
drop/create) it will take forever as you'll have all kinds of data
collisions (imagine every insert into a table erroring out due to
duplicate primary key).

As for the -Ft vs. -Fc size question, the tar format is not a compressed
format, while the "c"ustom format is.

Robert Treat


On Fri, 2003-03-28 at 07:35, lists wrote:
> Hi,
>
> I've a dump I made with the command:
>
> pg_dump -a -b -Fc -f DB.dump -o -v DB
>
> then I try to restore with:
>
> pg_restore -a -d DB2 -Fc -o -v DB.dump
>
> This database is about 1.5Gb big.
>
> The dump takes abou 1 hour, but the restore takes forever!
>
> Last time I ran it, it takes more than 10 hours, when I gave up
> and stopped the process.
>
> Tried with both Ft and Fc.
>
> Another doubt: Why a dump of this DB with Ft has about the
> same size of the original DB(1.5GB) and with Fc it has about 50MB?
>
> My system is:
> P3 1Ghz, 1GB ram, Win2k, Postgres 7.2.2
> Free space ~5GB.
>
> TIA,
>
> Ricardo.

> $pg_restore -a -d DB2 -Fc -o -v DB1.dump

As I'm running pg_restore like this and is taking to long,
is there any other way to restore OIDs/lo objects?

TIA
Ricardo