Great, Alan. I do know ahead of time which output I want, so your solution will work. Didn't know you could bind Pig statements to variables and execute them.
Nonetheless: looking forward to the control flow feature. Andreas On Tue, Mar 15, 2011 at 7:23 AM, Alan Gates <[email protected]> wrote: > If you know before you start the script which you want, you can use > parameter substitution: > > A = load 'foo'; > ... > Z = foreach Y generate ...; > $DO_OUTPUT > > Then, depending on which you want, run pig with > > pig -pDO_OUTPUT='dump Z;'; > > or > > pig -pDO_OUTPUT="store Z into 'outfile';" > > If you want to decide which to do based on results of the script, then > you'll need the new control flow integration features available in 0.9. > These aren't yet released, but they are in trunk. > > Alan. > > > On Mar 14, 2011, at 10:40 PM, Andreas Paepcke wrote: > > I want to do something really simple: I want to pass a string >> into a Pig script. The string is either "stdout" or some target >> file name. Say the string gets bound to $OUTPUT. That all >> works fine. >> >> After the script has computed a result R, depending on the >> value of $OUTPUT, I want either to do a dump R (if >> $OUTPUT == "stdout"), or a STORE of R into the given >> file name that's held in $OUTPUT. >> >> How do I do that conditional? I played with bincond, but >> got stuck. >> >> Thanks! >> >> Andreas >> >> >> Andreas >> > >
