Le 11 févr. 2018 à 21:53, Andres Freund écrivait : > On 2018-02-11 21:41:26 +0100, Nicolas Paris wrote: > > I have also the storage and network transfers overhead in mind: > > All those new formats are compressed; this is not true for current > > postgres BINARY format and obviously text based format. By experience, > > the binary format is 10 to 30% larger than the text one. On the > > contrary, an ORC file can be up to 10 times smaller than a text base > > format. > > That seems largely irrelevant when arguing about using PROGRAM though, > right? > Indeed those storage and network transfers are only considered versus CSV/BINARY format. No link with PROGRAM aspect.