(I had meant also to add that a linear algebra package would help Postgres to be the mediator for real-time data, from things like temprature sensors, etc, and their relationship to not-so-scientific data, say in a manufacturing environment). On Feb 1, 2008 12:19 PM, Ron Mayer <rm_pg@xxxxxxxxxxxxxxxxxxxxxxx> wrote: > Webb Sprague wrote: > > On Feb 1, 2008 2:31 AM, Enrico Sirola <enrico.sirola@xxxxxxxxx> wrote: > >> I'd like to perform linear algebra operations on float4/8 arrays... > > > > If there were a coherently designed, simple, and fast LAPACK/ MATLAB > > style library and set of datatypes for matrices and vectors in > > Postgres, I think that would be a HUGE plus for the project! > > I'd also be very excited about this project. > > Especially if some GIST or similar index could efficiently search > for vectors "close" to other vectors. That would be very interesting as we could play with a multitude of different distance metrics from Analysis!!! Wow! > I'd be eager to help, test, debug, etc; but probably aren't qualified > to take the lead on such a project. I almost think the hardest part would be to spec it out and design the interface to the libraries. Once we had that, the libraries are already there, though figuring out how we are going to handle gigabyte size elements (e.g. a satellite image) will require some finesse, and perhaps some tiling ... Hmm. If I get some more interest on this list (I need just one LAPACK / BLAS hacker...), I will apply for a pgFoundry project and appoint myself head of the peanut gallery... ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend
