I have a PIG Script which produces four results I want to store all of them in a single file. I tries using UNION, however when I use UNION I get four files part-m-00000, part-m-00001, part-m-00002, part-m-00003. Cant I get a single file?

Here is the PIG script

A = UNION Message_1,Message_2,Message_3,Message_4 into 'AA';

Inside the AA folder I get 4 files as mentioned above. Can't I get a single file with all entries in it?

hadoop apache-pig hdfs
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