Hi Colleen, I'm not sure whats your use case, but you may want to watch https://issues.apache.org/jira/browse/PIG-438.
Thanks, Aniket On Sat, Mar 10, 2012 at 11:33 AM, Jonathan Coveney <jcove...@gmail.com>wrote: > It's important to remember that the aliases to the left of the equals are > not variables, per se, they represent relations, which is basically a bunch > of data. You can achieve what you want by doing: > > subjects2 = foreach subjects1 generate *; > > As far as doing something like: > > subjects 2 = dump subject1; > > dump, store, etc do not generate relations, they are what generate M/R > jobs. > > It can all be pretty opaque. Post if you have more questions. > Jon > > 2012/3/9 Colleen Ross <cc.emeralde...@gmail.com> > > > I tried to subscribe but a mail client box came up, not what I wanted, so > > we'll see if this works. > > > > I wrote this script: > > > > register s3n://uw-cse344-code/myudfs.jar > > > > > > -- load the test file into Pig > > --raw = LOAD 's3n://uw-cse344-test/cse344-test-file' USING TextLoader as > > (line:chararray); > > -- later you will load to other files, example: > > raw = LOAD 's3n://uw-cse344/btc-2010-chunk-000' USING TextLoader as > > (line:chararray); > > > > -- parse each line into ntriples > > ntriples = foreach raw generate FLATTEN(myudfs.RDFSplit3(line)) as > > (subject:chararray,predicate:chararray,object:chararray); > > > > --filter 1 > > subjects1 = filter ntriples by subject matches '.*rdfabout\\.com.*' > > PARALLEL 50; > > --filter 2 > > subjects2 = subjects1; > > > > but I got the error: > > 2012-03-10 01:19:18,039 [main] ERROR org.apache.pig.tools.grunt.Grunt - > > ERROR 1200: <line 4, column 21> mismatched input ';' expecting > LEFT_PAREN > > Details at logfile: /home/hadoop/pig_1331342327467.log > > > > how do I simply set one variable equal to another? > > > > I also tried subjects2 = dump subjects1; > > > > thanks! > > > > > > -- > > ~Colleen Ross > > > -- "...:::Aniket:::... Quetzalco@tl"