Re: In memory Database for postgres

If you need to run some database really fast,  try to put only all your
indexes onto ram disk. Look here... http://www.linux.com/feature/142658
They use SSD to store indexes (not data)  for postgresql. A think the
same conclusions should apply for ram disk too.

And in wrost case (power off for RAM disk or wear out for SSD) you  need
only a reindex to build your indexes again

Scott Marlowe napsal(a):
> On Mon, Apr 13, 2009 at 2:06 PM, aravind chandu <avin_friends@yahoo.com> wrote:
>
>> Hello,
>>
>>                Thanks for your reply,but what I am actually looking for is
>> database should be an in-memory database and at the same i want to store
>> that data into disk so that data won't be lost when the system restarts or
>> in case of power failure. Can you guys tell me the procedure how to do this?
>> your help will he greatly appreciated.
>>
>
> But that's just the point people have been making.  A small enough db
> will be cached completely in memory, and the only time you'll have to
> access the disks is the first read, and during writes, which can be
> made to happen mostly after the fact and not influence the rest of the
> db.
>
> You're trying to reinvent a wheel to solve a non-existent problem.
>
>