I'm writing a pig script similar to:
A = load 'data' using org.apache.pig.piggybank.storage.XMLLoader('response') as
(line:chararray);
B = foreach A GENERATE FLATTEN(Parser(line));
store B into my_data using PigStorage('\t');
This script basically reads a file which contains xml's dumped in it. The
second line in a pig script calls the java udf which parses the xml.
The Parser UDF returns a data bag with multiple tuples
This outputs:
(1 91705 rondo music guitar)
(3 96629 award music guitar)
I'd like to add a header row to the output file:
(Id Form Query)
(1 91705 rondo music guitar)
(3 96629 award music guitar)
Any ideas?
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