Package org.apache.hadoop.hive.ql.exec.vector

Examples of org.apache.hadoop.hive.ql.exec.vector.DecimalColumnVector

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    HiveDecimal d = HiveDecimal.create("3.96");  // 1.20 * 3.30
    VectorExpression expr = new DecimalScalarDivideDecimalColumn(d, 0, 2);

    // test without nulls
    expr.evaluate(b);
    DecimalColumnVector r = (DecimalColumnVector) b.cols[2];
    assertTrue(r.vector[0].getHiveDecimal().equals(HiveDecimal.create("3.3")));
    assertTrue(r.vector[1].getHiveDecimal().equals(HiveDecimal.create("-1.2")));
    assertFalse(r.noNulls); // entry 2 is null due to zero-divide
    assertTrue(r.isNull[2]);

    // test null propagation
    b = getVectorizedRowBatch3DecimalCols();
    DecimalColumnVector in = (DecimalColumnVector) b.cols[0];
    r = (DecimalColumnVector) b.cols[2];
    in.noNulls = false;
    in.isNull[0] = true;
    expr.evaluate(b);
    assertTrue(!r.noNulls);
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    HiveDecimal d = HiveDecimal.create("2.00");
    VectorExpression expr = new DecimalColModuloDecimalScalar(0, d, 2);

    // test without nulls
    expr.evaluate(b);
    DecimalColumnVector r = (DecimalColumnVector) b.cols[2];
    assertTrue(r.vector[0].getHiveDecimal().equals(HiveDecimal.create("1.20")));
    assertTrue(r.vector[1].getHiveDecimal().equals(HiveDecimal.create("-1.30")));
    assertTrue(r.vector[2].getHiveDecimal().equals(HiveDecimal.create("0")));

    // try again with some different data values and divisor
    DecimalColumnVector in = (DecimalColumnVector) b.cols[0];
    in.vector[0].set(HiveDecimal.create("15.40"));
    in.vector[1].set(HiveDecimal.create("-17.20"));
    in.vector[2].set(HiveDecimal.create("70.00"));
    d = HiveDecimal.create("4.75");
    expr = new DecimalColModuloDecimalScalar(0, d, 2);
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    HiveDecimal d = HiveDecimal.create("2.00");
    VectorExpression expr = new DecimalScalarModuloDecimalColumn(d, 0, 2);

    // test without nulls
    expr.evaluate(b);
    DecimalColumnVector r = (DecimalColumnVector) b.cols[2];
    assertTrue(r.vector[0].getHiveDecimal().equals(HiveDecimal.create("0.80")));
    assertTrue(r.vector[1].getHiveDecimal().equals(HiveDecimal.create("2.00")));
    assertFalse(r.noNulls); // entry 2 will be null due to zero-divide
    assertTrue(r.isNull[2]);

    // try again with some different data values
    DecimalColumnVector in = (DecimalColumnVector) b.cols[0];
    expr = new DecimalScalarModuloDecimalColumn(d, 0, 2);
    in.vector[0].set(HiveDecimal.create("0.50"));
    in.vector[1].set(HiveDecimal.create("0.80"));
    in.vector[2].set(HiveDecimal.create("0.70"));
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  }

  @Test
  public void testDecimalColDivideDecimalColumn() {
    VectorizedRowBatch b = getVectorizedRowBatch3DecimalCols();
    DecimalColumnVector in1 = (DecimalColumnVector) b.cols[1];
    for (int i = 0; i < 3; i++) {
      in1.vector[i].set(HiveDecimal.create("0.50"));
    }
    VectorExpression expr = new DecimalColDivideDecimalColumn(0, 1, 2);
    expr.evaluate(b);
    DecimalColumnVector r = (DecimalColumnVector) b.cols[2];

    // all divides are by 0.50 so the result column is 2 times col 0.
    assertTrue(r.vector[0].getHiveDecimal().equals(HiveDecimal.create("2.4")));
    assertTrue(r.vector[1].getHiveDecimal().equals(HiveDecimal.create("-6.6")));
    assertTrue(r.vector[2].getHiveDecimal().equals(HiveDecimal.create("0")));
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  // Spot check decimal column modulo decimal column
  @Test
  public void testDecimalColModuloDecimalColumn() {
    VectorizedRowBatch b = getVectorizedRowBatch3DecimalCols();
    DecimalColumnVector in1 = (DecimalColumnVector) b.cols[1];
    for (int i = 0; i < 3; i++) {
      in1.vector[i].set(HiveDecimal.create("0.50"));
    }
    VectorExpression expr = new DecimalColModuloDecimalColumn(0, 1, 2);
    expr.evaluate(b);
    DecimalColumnVector r = (DecimalColumnVector) b.cols[2];

    assertTrue(r.vector[0].getHiveDecimal().equals(HiveDecimal.create("0.20")));
    assertTrue(r.vector[1].getHiveDecimal().equals(HiveDecimal.create("-0.30")));
    assertTrue(r.vector[2].getHiveDecimal().equals(HiveDecimal.create("0")));
  }
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*/
public class TestDecimalUtil {

  @Test
  public void testFloor() {
    DecimalColumnVector dcv = new DecimalColumnVector(4 ,20, 13);
    HiveDecimal d1 = HiveDecimal.create("19.56778");
    HiveDecimal expected1 = HiveDecimal.create("19");
    DecimalUtil.floor(0, d1, dcv);
    Assert.assertEquals(0, expected1.compareTo(dcv.vector[0].getHiveDecimal()));

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    Assert.assertEquals(0, expected6.compareTo(dcv.vector[0].getHiveDecimal()));
  }

  @Test
  public void testCeiling() {
    DecimalColumnVector dcv = new DecimalColumnVector(4 ,20, 13);
    HiveDecimal d1 = HiveDecimal.create("19.56778");
    HiveDecimal expected1 = HiveDecimal.create("20");
    DecimalUtil.ceiling(0, d1, dcv);
    Assert.assertEquals(0, expected1.compareTo(dcv.vector[0].getHiveDecimal()));
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    Assert.assertEquals(0, expected6.compareTo(dcv.vector[0].getHiveDecimal()));
  }

  @Test
  public void testAbs() {
    DecimalColumnVector dcv = new DecimalColumnVector(4 ,20, 13);
    HiveDecimal d1 = HiveDecimal.create("19.56778");
    DecimalUtil.abs(0, d1, dcv);
    Assert.assertEquals(0, d1.compareTo(dcv.vector[0].getHiveDecimal()));

    HiveDecimal d2 = HiveDecimal.create("-25.34567");
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    Assert.assertEquals(0, expected2.compareTo(dcv.vector[0].getHiveDecimal()));
  }

  @Test
  public void testRound() {
    DecimalColumnVector dcv = new DecimalColumnVector(4 ,20, 0);
    HiveDecimal d1 = HiveDecimal.create("19.56778");
    HiveDecimal expected1 = HiveDecimal.create("20");
    DecimalUtil.round(0, d1, dcv);
    Assert.assertEquals(0, expected1.compareTo(dcv.vector[0].getHiveDecimal()));
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    Assert.assertEquals(0, expected6.compareTo(dcv.vector[0].getHiveDecimal()));
  }

  @Test
  public void testRoundWithDigits() {
    DecimalColumnVector dcv = new DecimalColumnVector(4 ,20, 3);
    HiveDecimal d1 = HiveDecimal.create("19.56778");
    HiveDecimal expected1 = HiveDecimal.create("19.568");
    DecimalUtil.round(0, d1, dcv);
    Assert.assertEquals(0, expected1.compareTo(dcv.vector[0].getHiveDecimal()));
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  • org.apache.hadoop.hive.ql.exec.vector.expressions.aggregates.gen.VectorUDAFVarSampDecimal
  • org.apache.hadoop.hive.ql.exec.vector.expressions.aggregates.VectorUDAFAvgDecimal
  • org.apache.hadoop.hive.ql.exec.vector.expressions.aggregates.VectorUDAFSumDecimal
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