Not sure if this is proof that it is a reserved work but I here is what I
am seeing:
-- no error
grunt> v = LOAD 'test.data' USING PigStorage(' ') AS (id: int, val:
chararray);
-- error with known reserved keyword
grunt> and = LOAD 'test.data' USING PigStorage(' ') AS (id: int, val:
chararray);
2013-07-01 16:29:02,806 [main] ERROR org.apache.pig.tools.grunt.Grunt -
ERROR 1200: <line 2, column 0> mismatched input 'and' expecting EOF
-- error with void
grunt> void = LOAD 'test.data' USING PigStorage(' ') AS (id: int, val:
chararray);
2013-07-01 16:30:54,145 [main] ERROR org.apache.pig.tools.grunt.Grunt -
ERROR 1200: <line 3, column 0> mismatched input 'void' expecting EOF
I think the docs just need to be changed to reflect this.
Sergey