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To: Peter Osterberg <ohb@dataphone.se>
cc: postgres@postgres.Berkeley.EDU
Subject: Re: Moving a database
In-reply-to: Peter Osterberg's message of Tue, 7 Nov 1995 21:45:36 +0100 (MET)
Date: Tue, 07 Nov 1995 20:07:52 -0500
From: Robert Patrick <Robert_Patrick@TIKA.NDIM.EDRC.CMU.EDU>
Resent-To: postgres-redist@postgres.Berkeley.EDU
Resent-Date: Tue, 07 Nov 95 17:08:27 -0800
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> I had previoulsy my postgres-deamon running on a Linux-box. I did set up 
> the postgres deamon on a SS20 today and everything seems to work as it 
> should. I can create new DB's and so on. The problem comes when I try to 
> move my existing database to the SS20. I get PQExec errors when try to visit 
> the _moved_ database with 'monitor'. I moved the database by simply 
> copying all the old database files with ftp and cp. I understand that I 
> can't do like that. I also tryied to create an empty database with 
> createdb and the same name, and then ftp and cp the database-files. And 
> that didn't work either.
> I have the same version on both my machines, version 4.2.
> Is there anyway in which I can move the database between my computers.

The only way to do it is to use the "copy" command to copy each table
out of the old database to a file and that file back into the new database.
Postgres store the tables in a binary format and since Intel uses a
"little endian" representation and Sparcs use "big endian", you're
outta luck as far as a straight file transfer.  (You can actually move
database files back and forth between a sparc and an hp since they
have the same binary representation).

Robert

--
+------------------------------------------------------------------------+
| Robert Patrick (rp2y+@edrc.cmu.edu) Engineering Design Research Center |
| n-dim Group                                 Carnegie Mellon University |
| World Wide Web: http://tika.ndim.edrc.cmu.edu/~rp2y/Home.html          |
+------------------------------------------------------------------------+

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