Re: [GENERAL] Transactions in different DB

2004-11-17 Thread Ian Barwick
On Tue, 16 Nov 2004 11:22:27 +0100, Stefano Farina
[EMAIL PROTECTED] wrote:
  
 Hi all 
 I have to develop an embedded database using memory FLASH and memory RAM 
 Some tables must be saved in RAM and some tables in FLASH ( RAM and FLASH
 are two different mounted directories in the file system). 
 I saw it's possible to save different databases in different directories
 with CREATE DATABASE options. 
   
 It's possible to save only some tables in different directories?? 

Beginning with PostgreSQL 8.0, yes - this provides tablespaces. 
   
 If I want to work with two different databases, it's possible to do  a
 single transaction on two different databases ?? 

Not AFAIK, though contrib/dblink might be able to help you. 

HTH

Ian Barwick
[EMAIL PROTECTED]

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Re: [GENERAL] Transactions in different DB

2004-11-17 Thread Tino Wildenhain
Hi,

Am Dienstag, den 16.11.2004, 11:22 +0100 schrieb Stefano Farina:
 Hi all
 I have to develop an embedded database using memory FLASH and memory
 RAM
 Some tables must be saved in RAM and some tables in FLASH ( RAM and
 FLASH are two different mounted directories in the file system).
 I saw it's possible to save different databases in different
 directories with CREATE DATABASE options.
  
 It's possible to save only some tables in different directories??

With 8.0 its possible. With pre 8.0 it would involve manual work
(linking) and you are restricted when you recreate tables and indices.
 
 If I want to work with two different databases, it's possible to do  a
 single transaction on two different databases ??

No. You might be able to simulate it with dblink, but generally no.

Regards
Tino


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[GENERAL] Transactions in different DB

2004-11-16 Thread Stefano Farina



Hi all
I have to develop an embedded database using 
memoryFLASH and memory RAM
Some tables must be saved in RAM and some tables in 
FLASH ( RAM and FLASH are two different mounted directoriesin the file 
system).
I sawit's possible to savedifferent 
databases in different directories with CREATE DATABASE options.

It's possible to save only some tables in different 
directories??

IfI want to work with two different 
databases, it's possible to do asingle transactionon two 
different databases ??

Thanks

Stefano Farina