Re: pg_restore

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Thanks Aaron

I am trying to do exactly the same thing. Now that my understanding of pg_restore is clearer. I was worried by my index key table was corrupted somehow and caused the error message.  This is the cause by my own misunderstanding.

CY

Aaron Bono <postgresql@xxxxxxxxxx> wrote:
I agree.  When restoring a database from back up, I do a drop database and recreate it to make sure everything is properly intact (tables, columns, views, triggers, foreign keys, etc...).  We do this a lot for testing.  We backup the production database, copy to test server and do a restore on the test database.  It helps us test our code rollouts.

-Aaron

On 6/18/06, Tom Lane <tgl@xxxxxxxxxxxxx> wrote:
Infor Gates <info_gates@xxxxxxxxx> writes:
> I am having the impression that pg_restore would over-rides the "old"
> data with the current one. Is my thinking wrong?

Yeah.  By default, pg_restore will issue a CREATE TABLE (which of course
fails if the table already exists) followed by COPY (which just tries to
insert data in addition to what might be there already).

There's a command line option to ask pg_restore to try to DROP TABLE
before doing the CREATE TABLE.  By and large, though, that's a bad way
to proceed unless you are specifically trying to merge two databases.
The fast and easy way to proceed is to DROP DATABASE, CREATE a fresh
empty database, and pg_restore into that.

                        regards, tom lane


Do you Yahoo!?
Next-gen email? Have it all with the all-new Yahoo! Mail Beta.

[Index of Archives]     [KVM ARM]     [KVM ia64]     [KVM ppc]     [Virtualization Tools]     [Spice Development]     [Libvirt]     [Libvirt Users]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite Questions]     [Linux Kernel]     [Linux SCSI]     [XFree86]

  Powered by Linux