> On 05/29/2016 04:55 PM, Kouhei Kaigai wrote: > > For the closer integration, it may be valuable if PL/R and PL/CUDA can > > exchange > > the data structure with no serialization/de-serialization when PL/R code > > tries > > to call SQL functions. > > I had been thinking about something similar. Maybe PL/R can create an > extension within the R environment that wraps PL/CUDA directly or at the > least provides a way to use a fast-path call. We should probably try to > start out with one common use case to see how it might work and how much > benefit there might be. > My thought is the second option above. If SPI interface supports fast-path like 'F' protocol, it may become a natural way for other PLs also to integrate SQL functions in other languages.
> > IIUC, pg.spi.exec("SELECT my_function(...)") is the only way to call SQL > > functions > inside PL/R scripts. > > Correct (currently). > > BTW, this is starting to drift off topic I think -- perhaps we should > continue off list? > Some elements are common for PostgreSQL (matrix data type and fastpath SPI interface). I like to keep the discussion on the list. Regarding to the PoC on a particular use case, it might be an off-list discussion. Thanks, -- NEC Business Creation Division / PG-Strom Project KaiGai Kohei <kai...@ak.jp.nec.com> -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers