String pigStorage = PigStorage.class.getName() ;
LOLoad load1 = new LOLoad(plan,
genNewOperatorKey(),
new FileSpec("pi", new FuncSpec(pigStorage)),
null) ;
LOLoad load2 = new LOLoad(plan,
genNewOperatorKey(),
new FileSpec("pi", new FuncSpec(pigStorage)),
null) ;
// schema for input#1
Schema inputSchema1 = null ;
{