On Mon, Apr 26, 2010 at 7:24 PM, Anj Adu wrote:
> I have a 16G box and tmpfs is configured to use 8G for tmpfs .
>
> Is a lot of memory being wasted that can be used for Postgres ? (I am
> not seeing any performance issues, but I am not clear how Linux uses
> the tmpfs and how Postgres would be af
On Thu, Apr 22, 2010 at 4:42 PM, Rick wrote:
> On Apr 22, 2:55 pm, robertmh...@gmail.com (Robert Haas) wrote:
>> On Wed, Apr 21, 2010 at 11:06 AM, Rick wrote:
>> > I have a DB with small and large tables that can go up to 15G.
>> > For performance benefits, it appears that analyze has much less c
On Mon, Apr 26, 2010 at 5:33 AM, Cédric Villemain
wrote:
> In the first query, the planner doesn't use the information of the 2,3,4.
> It just does a : I'll bet I'll have 2 rows in t1 (I think it should
> say 3, but it doesn't)
> So it divide the estimated number of rows in the t2 table by 5
> (di
