On 11/19/2010 03:12 PM, Matthew Walden wrote:
Vangelis,
I don't believe you can do file level copying of single databases
(especially as they are different versions).
Hi Matthew, thanks for your answer.
If the different versions is a problem, I can downgrade one server and
then upgrade afterwards.
Take a look at pg_dump in the documentation. This will do what you need I
think but at a logical level rather than physical.
Hm, from what I understand pg_dump doesn't dump indexes (ie the indexing
information - not an SQL clause in CREATE TABLE). Also I have lots of
Giga of data, so I imagine that pg_restore will take quite some time to
execute the INSERTs and reindex.
Regards
Vangelis
On Fri, Nov 19, 2010 at 11:52 AM, Vangelis Katsikaros<ibo...@yahoo.gr>wrote:
Hello
I use postgres 8.3.12 on machineA and 8.4.5 on machineB.
On machineA I have created a tablespace with
CREATE TABLESPACE tablelocation_name LOCATION '/my/location/machineA';
I then created a database with
CREATE DATABASE db_name TABLESPACE tablelocation;
I created tables, inserted data and created indexes.
I now want to "move" the db from '/my/location/machineA' of machine A to
'/other/location/machineB' of machine B. My question is how I can do a
filesystem backup/restore (I want to move the indexes too - too time
consuming to reindex).
Machine B already has a postgres running, and postgres on machine B already
has other databases. During this process I have no problem of shutting down
postgres.
I have tried some things unsuccessfully:
1) - stop postgres on machine B
- copy dir of tablelocation of machine A to '/other/location/machineB'
on machine B
- start postgres on machine B
- CREATE TABLESPACE tablelocation_name LOCATION
'/other/location/machineB';
ERROR: directory "/other/location/machineB" is not empty
Regards
Vangelis
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