@Test
  public void testVarPopLongRepeatNulls () throws HiveException {
    testAggregateLongRepeats (
        "var_pop",
        null,
        4096,
        1024,
        0.0);
  }
Unit test for the vectorized GROUP BY operator.
ql/src/test/org/apache/hadoop/hive/ql/exec/vector/TestVectorGroupByOperator.java