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define avro_load_input
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org.apache.pig.piggybank.storage.avro.AvroStorage(
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3
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'schema', '$schema_input');
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define avro_store_output
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org.apache.pig.piggybank.storage.avro.AvroStorage(
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'index', '0',
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'schema', '$schema_output');
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input1 = load '$input_1' using avro_load_input;
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input2 = load '$input_2' using avro_load_input;
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input3 = load '$input_3' using avro_load_input;
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input_union = union input1, input2, input3;
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15
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store input_union into '$output' using avro_store_output;
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