Examples of org.apache.pig.builtin.VALUESET

org.apache.pig.builtin.VALUESET

This UDF takes a Map and returns a Tuple containing the value set.
Note, this UDF returns only unique values. For all values, use
VALUELIST instead.

  grunt> cat data [open#apache,1#2,11#2] [apache#hadoop,3#4,12#hadoop] grunt> a = load 'data' as (M:[]); grunt> b = foreach a generate VALUELIST($0); ({(apache),(2)}) ({(4),(hadoop)})

        m.put("open", "apache");
        m.put("1", "hadoop");
        m.put("source", "apache");
        Tuple input = TupleFactory.getInstance().newTuple(m);


        VALUESET valueSet = new VALUESET();
        DataBag result = valueSet.exec(input);


        //Value set should only contain 2 elements
        assertEquals(result.size(), 2);
        Iterator<Tuple> i = result.iterator();
        List resultList = new ArrayList<String>();

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        m.put("open", "apache");
        m.put("1", "hadoop");
        m.put("source", "apache");
        Tuple input = TupleFactory.getInstance().newTuple(m);


        VALUESET valueSet = new VALUESET();
        DataBag result = valueSet.exec(input);


        //Value set should only contain 2 elements
        assertEquals(result.size(), 2);
        Iterator<Tuple> i = result.iterator();
        List resultList = new ArrayList<String>();

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        m.put("open", "apache");
        m.put("1", "hadoop");
        m.put("source", "apache");
        Tuple input = TupleFactory.getInstance().newTuple(m);


        VALUESET valueSet = new VALUESET();
        DataBag result = valueSet.exec(input);


        //Value set should only contain 2 elements
        assertEquals(result.size(), 2);
        Iterator<Tuple> i = result.iterator();
        List resultList = new ArrayList<String>();

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        m.put("open", "apache");
        m.put("1", "hadoop");
        m.put("source", "apache");
        Tuple input = TupleFactory.getInstance().newTuple(m);


        VALUESET valueSet = new VALUESET();
        DataBag result = valueSet.exec(input);


        //Value set should only contain 2 elements
        assertEquals(result.size(), 2);
        Iterator<Tuple> i = result.iterator();
        List resultList = new ArrayList<String>();

View Full Code Here

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Related Classes of org.apache.pig.builtin.VALUESET

org.apache.pig.data.DataBag

org.apache.pig.data.NonSpillableDataBag

org.apache.pig.data.Tuple

org.apache.pig.impl.logicalLayer.schema.Schema

org.apache.pig.impl.logicalLayer.schema.Schema.FieldSchema

org.apache.pig.test.TestBuiltin

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