-- Illegal Pig syntax A = {('Hello'),('World')}; DUMP A;However, it produces syntax errors. The only way to create a relation -- the basic "variable" in Pig -- is through LOADing a file. As a "language lawyer" within whatever team I was in dating back to the K&R era, it bothers me that a "Hello World" program is impossible to write within a single code file. It makes it seem like Pig Latin is an incomplete language.
The people at Twitter's ElephantBird project have come up with a custom solution in response to my request on the Pig User mailing list.
http://mail-archives.apache.org/mod_mbox/pig-user/201301.mbox/%3CCAE7pYjZtwuxYZs6Ov54P-6SFRCkKPuL9Jwac9i-Rr%2BYsdhasNw%40mail.gmail.com%3E
This ElephantBird Java class allows converting what normally would be the filename specified with the LOAD command into a tuple. A hack. That works. But not without invoking code not distributed with Pig and not without ugliness.
languages = load 'en,fr,jp' using LocationAsTuple(',');