Apache Wiki
Mon, 05 May 2008 15:27:36 -0700
Dear Wiki user, You have subscribed to a wiki page or wiki category on "Pig Wiki" for change notification. The following page has been changed by PiSong: http://wiki.apache.org/pig/NestedLogicalPlan The comment on the change is: misspelling!!!! ------------------------------------------------------------------------------ [shrav] Pig already kind of does what you are saying here; just that it does it implicitly. The loadTuple is infact what happens when a nested plan is processed. I guess the way to extend the language would be to just allow all the operators that we allow outside a nested plan inside of it. In fact, the execution side, that is the Physical side, already supports it. Just that we need to make appropriate parser changes and the hard thing would be to do type checking and parsing itself. - [pi] I think in logical plan change, I would be better to have something that indicates the link between outer/inner. I don't find any existing operator fit in this. I agree that it doesn't have to be explicit. + [pi] I think in logical plan change it would be better to have something that indicates the link between outer/inner. I don't find any existing operator fit in this. I agree that it doesn't have to be explicit. ==== More examples ==== Given GENERATE: Tuple -> Tuple