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

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

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

org.apache.hadoop.hive.ql.exec.vector.LongColumnVector
This class represents a nullable int column vector. This class will be used for operations on all integer types (tinyint, smallint, int, bigint) and as such will use a 64-bit long value to hold the biggest possible value. During copy-in/copy-out, smaller int types will be converted as needed. This will reduce the amount of code that needs to be generated and also will run fast since the machine operates with 64-bit words. The vector[] field is public by design for high-performance access in the inner loop of query execution.

  @Test
  public void testIsNotNullExpr() {
    // has nulls, not repeating
    VectorizedRowBatch batch = getBatchThreeBooleanCols();
    IsNotNull expr = new IsNotNull(0, 2);
    LongColumnVector outCol = (LongColumnVector) batch.cols[2];
    expr.evaluate(batch);
    Assert.assertEquals(1, outCol.vector[0]);
    Assert.assertEquals(0, outCol.vector[4]);
    Assert.assertTrue(outCol.noNulls);
    Assert.assertFalse(outCol.isRepeating);

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  @Test
  public void testLongInExpr() {


    // check basic operation
    VectorizedRowBatch b = TestVectorMathFunctions.getVectorizedRowBatchLongInLongOut();
    LongColumnVector outV = (LongColumnVector) b.cols[1];
    long[] inVals = new long[2];
    inVals[0] = 0;
    inVals[1] = -2;
    LongColumnInList expr = new LongColumnInList(0, 1);
    expr.setInListValues(inVals);

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  @Test
  public void testDoubleInExpr() {


    // check basic operation
    VectorizedRowBatch b = TestVectorMathFunctions.getVectorizedRowBatchDoubleInLongOut();
    LongColumnVector outV = (LongColumnVector) b.cols[1];
    double[] inVals = new double[2];
    inVals[0] = -1.5d;
    inVals[1] = 30d;
    b.size = 2;
    DoubleColumnInList expr = new DoubleColumnInList(0, 1);

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    Assert.assertEquals(1.2346d, resultV.vector[7]);
  }


  public static VectorizedRowBatch getVectorizedRowBatchDoubleInLongOut() {
    VectorizedRowBatch batch = new VectorizedRowBatch(2);
    LongColumnVector lcv;
    DoubleColumnVector dcv;
    lcv = new LongColumnVector();
    dcv = new DoubleColumnVector();
    dcv.vector[0] = -1.5d;
    dcv.vector[1] = -0.5d;
    dcv.vector[2] = -0.1d;
    dcv.vector[3] = 0d;

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    return batch;
  }


  public static VectorizedRowBatch getVectorizedRowBatchLongInDoubleOut() {
    VectorizedRowBatch batch = new VectorizedRowBatch(2);
    LongColumnVector lcv;
    DoubleColumnVector dcv;
    lcv = new LongColumnVector();
    dcv = new DoubleColumnVector();
    lcv.vector[0] = -2;
    lcv.vector[1] = -1;
    lcv.vector[2] = 0;
    lcv.vector[3] = 1;

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    return batch;
  }


  public static VectorizedRowBatch getVectorizedRowBatchLongInLongOut() {
    VectorizedRowBatch batch = new VectorizedRowBatch(2);
    LongColumnVector inV, outV;
    inV = new LongColumnVector();
    outV = new LongColumnVector();
    inV.vector[0] = -2;
    inV.vector[1] = 2;


    batch.cols[0] = inV;
    batch.cols[1] = outV;

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    return batch;
  }


  public static VectorizedRowBatch getBatchForStringMath() {
    VectorizedRowBatch batch = new VectorizedRowBatch(3);
    LongColumnVector inL;
    BytesColumnVector inS, outS;
    inL = new LongColumnVector();
    inS = new BytesColumnVector();
    outS = new BytesColumnVector();
    inL.vector[0] = 0;
    inL.vector[1] = 255;
    inL.vector[2] = 0;

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  }


  @Test
  public void testVectorFloor() {
    VectorizedRowBatch b = getVectorizedRowBatchDoubleInLongOut();
    LongColumnVector resultV = (LongColumnVector) b.cols[1];
    b.cols[0].noNulls = true;
    VectorExpression expr = new FuncFloorDoubleToLong(0, 1);
    expr.evaluate(b);
    Assert.assertEquals(-2, resultV.vector[0]);
    Assert.assertEquals(1, resultV.vector[6]);

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  }


  @Test
  public void testVectorCeil() {
    VectorizedRowBatch b = getVectorizedRowBatchDoubleInLongOut();
    LongColumnVector resultV = (LongColumnVector) b.cols[1];
    b.cols[0].noNulls = true;
    VectorExpression expr = new FuncCeilDoubleToLong(0, 1);
    expr.evaluate(b);
    Assert.assertEquals(-1, resultV.vector[0]);
    Assert.assertEquals(2, resultV.vector[6]);

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    expr.evaluate(b);
    Assert.assertTrue(equalsWithinTolerance(((-4.0d % 0.3d) + 0.3d) % 0.3d, resultV.vector[4]));


    // test long->long version
    b = getVectorizedRowBatchLongInLongOut();
    LongColumnVector resV2 = (LongColumnVector) b.cols[1];
    b.cols[0].noNulls = true;
    expr = new PosModLongToLong(0, 3, 1);
    //((ISetLongArg) expr).setArg(3);
    expr.evaluate(b);
    Assert.assertEquals(((-2 % 3) + 3) % 3, resV2.vector[0]);

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