so what is the issue with just doing "explain final_alias;" ? Or do you want it to do explain on the final alias of any given script?
2013/2/18 Petar Jovanovic <pe...@essi.upc.edu> > Well no. I want to do explain over the entire script as I show you in the > command I wrote. > That would produce the compact execution plan for the whole script and not > the several separate ones (one for each alias). > > > > On 2/18/2013 10:21 PM, Jonathan Coveney wrote: > >> I guess I'm confused at what you want then. >> >> So we have a script: >> >> a = .. >> b = ... >> c = .. >> >> my impression was that you essentially wanted to print "explain a; explain >> b; explain c;" is this not what you mean/ >> >> >> 2013/2/18 Petar Jovanovic <pe...@essi.upc.edu> >> >> But pig already has this, it's jut that the java API seems not to have >>> it. >>> The point would be to have the execution flow from the entire script. >>> Indeed, the output is not exactly the same if the explain is called over >>> the entire script than if it is called for each query (alias). >>> >>> If from the shell we execute command >>> >>> $ pig -x local -e 'explain -script Temp1/TPC_test.pig -out >>> explain-out9.txt' >>> it will not give the same output as if we did it for each operation >>> separately. >>> >>> >>> On 2/18/2013 7:04 PM, Jonathan Coveney wrote: >>> >>> Hacky way: grep for "^\S =", pull out the names, and then do the >>>> explains. >>>> >>>> Why is doing the progressive explains useful? it wouldn't be too hard to >>>> build this into pig but the results would be pretty unwieldy, it'd be >>>> really big, and pretty redundant. >>>> >>>> >>>> 2013/2/18 Petar Jovanovic <pe...@essi.upc.edu> >>>> >>>> Hi, >>>> >>>>> I am trying to find the way to run the explain command over the entire >>>>> pig >>>>> script in java. I was using PigServer but it offers only to do explain >>>>> over >>>>> the single query (alias) not the entire script. Is there a way to do >>>>> something like: >>>>> $ pig -x local -e 'explain -script Temp1/TPC_test.pig -out >>>>> explain-out9.txt' >>>>> but from my Java code? >>>>> >>>>> Thanks. >>>>> >>>>> >>>>> >>>>> >
