Thanks to visit codestin.com
Credit goes to postgrespro.com

Re: PostgreSQL as a local in-memory cache - Mailing list pgsql-performance

From Robert Haas
Subject Re: PostgreSQL as a local in-memory cache
Date
Msg-id [email protected]
Whole thread Raw
In response to Re: PostgreSQL as a local in-memory cache  (Rob Wultsch <[email protected]>)
Responses Re: PostgreSQL as a local in-memory cache
List pgsql-performance
On Thu, Jun 24, 2010 at 4:40 AM, Rob Wultsch <[email protected]> wrote:
> On Fri, Jun 18, 2010 at 1:55 PM, Josh Berkus <[email protected]> wrote:
>>
>>> It must be a setting, not a version.
>>>
>>> For instance suppose you have a session table for your website and a
>>> users table.
>>>
>>> - Having ACID on the users table is of course a must ;
>>> - for the sessions table you can drop the "D"
>>
>> You're trying to solve a different use-case than the one I am.
>>
>> Your use-case will be solved by global temporary tables.  I suggest that
>> you give Robert Haas some help & feedback on that.
>>
>> My use case is people using PostgreSQL as a cache, or relying entirely
>> on replication for durability.
>
> Is he? Wouldn't a global temporary table have content that is not
> visible between db connections? A db session many not be the same as a
> user session.
>

I'm planning to implement global temporary tables, which can have
different contents for each user session.

And I'm also planning to implement unlogged tables, which have the
same contents for all sessions but are not WAL-logged (and are
truncated on startup).

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise Postgres Company

pgsql-performance by date:

Previous
From: [email protected]
Date:
Subject: Re: Small Queries Really Fast, Large Queries Really Slow...
Next
From: Janning
Date:
Subject: Write performance