That is correct, Re you additional question re PL/R or get data from Pg in plain R - I am not sure it will be that much faster inside PL/R...
I dont think there will be too much difference in execution time... Would be good to test it... and would be good to share results with us :) Thanks, Misa 2012/9/4 Aram Fingal <fin...@multifactorial.com> > > On Sep 4, 2012, at 4:18 PM, Misa Simic wrote: > > Inside PL/R you can take the same table as it is (unpivoted) as your > data.frame and then pivot it inside R using reshape package,,, And then > inside PL/R function do whatever you would like to do with data i.e export > to whatever... - but you cant return it pivoted as result of Postgres > function.. > > > Okay, you just answered my question in reply to Joe Conway (crossed in > the mail). So I could just use write.table() from R to save to disk or I > might even have the PL/R procedure write a heatmap or PCA plot to disk, > again without returning any rows to PostgreSQL. > > -Aram > > > >
