(Sorry, once I sent to Thomas only. This is re-post.)
Hi Thomas,
Thanks you for excellent explaining about shared memory in parallel
scan and 'foreign path'.
Those are points that I want to know. thanks.
> If you just supply an IsForeignScanParallelSafe function that returns
> true, that would a
core in parallel scan, does it not need
to allocate DSM?
thanks.
2018年8月17日(金) 9:28 Thomas Munro :
>
> On Thu, Aug 16, 2018 at 11:36 PM, Masayuki Takahashi
> wrote:
> > I am trying to change cstore_fdw to scan in parallel. FDW interface provide
> > 'EstimateDSMForeignSca
Hi,
I am trying to change cstore_fdw to scan in parallel. FDW interface provide
'EstimateDSMForeignScan' for required shared memory size to scan in parallel.
How to estimate the shared memory size required for parallel scan?
thanks.
--
Masayuki Takahashi
