On Tue, May 3, 2011 at 6:01 PM, Raghavendra <raghavendra.rao@xxxxxxxxxxxxxxxx> wrote:
On Tue, May 3, 2011 at 5:37 PM, Simon Riggs <simon@xxxxxxxxxxxxxxx> wrote:On Tue, May 3, 2011 at 11:54 AM, raghu ram <raghuchennuru@xxxxxxxxx> wrote:The CHECKPOINT command will do this for you.
> It may be a silly question, still out of curiosity I want to know, is there
> any possible way to flush the Postgres Shared Memory without restarting the
> cluster.
> In Oracle, we can flush the SGA, can we get the same feature here..
> Thanks in Advance.
According to PostgreSQL documentation, whenever you execute "CHECKPOINT" in the database,it will flush the modified data files presented in the Shared Buffers retuned to the Disk.
Is this clears the entire shared memory cache and same time,if i execute fresh SQL statement, Data will be retuned from disk??
--Raghu Ram
