org.apache.hadoop.hive.ql.exec.vector.expressions.ColOrCol Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.hive.ql.exec.vector.expressions;
import java.util.Arrays;
import org.apache.hadoop.hive.ql.exec.vector.LongColumnVector;
import org.apache.hadoop.hive.ql.exec.vector.VectorExpressionDescriptor;
import org.apache.hadoop.hive.ql.exec.vector.VectorizedRowBatch;
import org.apache.hadoop.hive.ql.metadata.HiveException;
/**
* This class performs OR expression on two input columns and stores,
* the boolean output in a separate output column. The boolean values
* are supposed to be represented as 0/1 in a long vector.
*/
public class ColOrCol extends VectorExpression {
private static final long serialVersionUID = 1L;
private final int colNum1;
private final int colNum2;
public ColOrCol(int colNum1, int colNum2, int outputColumnNum) {
super(outputColumnNum);
this.colNum1 = colNum1;
this.colNum2 = colNum2;
}
public ColOrCol() {
super();
// Dummy final assignments.
colNum1 = -1;
colNum2 = -1;
}
@Override
public void evaluate(VectorizedRowBatch batch) throws HiveException {
if (childExpressions != null) {
super.evaluateChildren(batch);
}
LongColumnVector inputColVector1 = (LongColumnVector) batch.cols[colNum1];
LongColumnVector inputColVector2 = (LongColumnVector) batch.cols[colNum2];
int[] sel = batch.selected;
int n = batch.size;
long[] vector1 = inputColVector1.vector;
long[] vector2 = inputColVector2.vector;
LongColumnVector outV = (LongColumnVector) batch.cols[outputColumnNum];
long[] outputVector = outV.vector;
if (n <= 0) {
// Nothing to do
return;
}
boolean[] outputIsNull = outV.isNull;
// We do not need to do a column reset since we are carefully changing the output.
outV.isRepeating = false;
long vector1Value = vector1[0];
long vector2Value = vector2[0];
if (inputColVector1.noNulls && inputColVector2.noNulls) {
if ((inputColVector1.isRepeating) && (inputColVector2.isRepeating)) {
// All must be selected otherwise size would be zero
// Repeating property will not change.
outV.isRepeating = true;
outputIsNull[0] = false;
outputVector[0] = vector1[0] | vector2[0];
} else if (inputColVector1.isRepeating && !inputColVector2.isRepeating) {
if (batch.selectedInUse) {
for (int j = 0; j != n; j++) {
int i = sel[j];
outputIsNull[i] = false;
outputVector[i] = vector1Value | vector2[i];
}
} else {
Arrays.fill(outputIsNull, 0, n, false);
for (int i = 0; i != n; i++) {
outputVector[i] = vector1Value | vector2[i];
}
}
} else if (!inputColVector1.isRepeating && inputColVector2.isRepeating) {
if (batch.selectedInUse) {
for (int j = 0; j != n; j++) {
int i = sel[j];
outputIsNull[i] = false;
outputVector[i] = vector1[i] | vector2Value;
}
} else {
Arrays.fill(outputIsNull, 0, n, false);
for (int i = 0; i != n; i++) {
outputVector[i] = vector1[i] | vector2Value;
}
}
} else /* neither side is repeating */{
if (batch.selectedInUse) {
for (int j = 0; j != n; j++) {
int i = sel[j];
outputIsNull[i] = false;
outputVector[i] = vector1[i] | vector2[i];
}
} else {
Arrays.fill(outputIsNull, 0, n, false);
for (int i = 0; i != n; i++) {
outputVector[i] = vector1[i] | vector2[i];
}
}
}
return;
}
// Carefully handle NULLs...
/*
* For better performance on LONG/DOUBLE we don't want the conditional
* statements inside the for loop.
*/
outV.noNulls = false;
if (inputColVector1.noNulls && !inputColVector2.noNulls) {
// only input 2 side has nulls
if ((inputColVector1.isRepeating) && (inputColVector2.isRepeating)) {
// All must be selected otherwise size would be zero
// Repeating property will not change.
outV.isRepeating = true;
outputVector[0] = vector1[0] | vector2[0];
outputIsNull[0] = (vector1[0] == 0) && inputColVector2.isNull[0];
} else if (inputColVector1.isRepeating && !inputColVector2.isRepeating) {
if (batch.selectedInUse) {
for (int j = 0; j != n; j++) {
int i = sel[j];
outputVector[i] = vector1Value | vector2[i];
outputIsNull[i] = (vector1Value == 0) && inputColVector2.isNull[i];
}
} else {
for (int i = 0; i != n; i++) {
outputVector[i] = vector1Value | vector2[i];
outputIsNull[i] = (vector1Value == 0) && inputColVector2.isNull[i];
}
}
} else if (!inputColVector1.isRepeating && inputColVector2.isRepeating) {
if (batch.selectedInUse) {
for (int j = 0; j != n; j++) {
int i = sel[j];
outputVector[i] = vector1[i] | vector2Value;
outputIsNull[i] = (vector1[i] == 0) && inputColVector2.isNull[0];
}
} else {
for (int i = 0; i != n; i++) {
outputVector[i] = vector1[i] | vector2Value;
outputIsNull[i] = (vector1[i] == 0) && inputColVector2.isNull[0];
}
}
} else /* neither side is repeating */{
if (batch.selectedInUse) {
for (int j = 0; j != n; j++) {
int i = sel[j];
outputVector[i] = vector1[i] | vector2[i];
outputIsNull[i] = (vector1[i] == 0) && inputColVector2.isNull[i];
}
} else {
for (int i = 0; i != n; i++) {
outputVector[i] = vector1[i] | vector2[i];
outputIsNull[i] = (vector1[i] == 0) && inputColVector2.isNull[i];
}
}
}
} else if (!inputColVector1.noNulls && inputColVector2.noNulls) {
// only input 1 side has nulls
if ((inputColVector1.isRepeating) && (inputColVector2.isRepeating)) {
// All must be selected otherwise size would be zero
// Repeating property will not change.
outV.isRepeating = true;
outputVector[0] = vector1[0] | vector2[0];
outputIsNull[0] = inputColVector1.isNull[0] && (vector2[0] == 0);
} else if (inputColVector1.isRepeating && !inputColVector2.isRepeating) {
if (batch.selectedInUse) {
for (int j = 0; j != n; j++) {
int i = sel[j];
outputVector[i] = vector1Value | vector2[i];
outputIsNull[i] = inputColVector1.isNull[0] && (vector2[i] == 0);
}
} else {
for (int i = 0; i != n; i++) {
outputVector[i] = vector1Value | vector2[i];
outputIsNull[i] = inputColVector1.isNull[0] && (vector2[i] == 0);
}
}
} else if (!inputColVector1.isRepeating && inputColVector2.isRepeating) {
if (batch.selectedInUse) {
for (int j = 0; j != n; j++) {
int i = sel[j];
outputVector[i] = vector1[i] | vector2Value;
outputIsNull[i] = inputColVector1.isNull[i] && (vector2Value == 0);
}
} else {
for (int i = 0; i != n; i++) {
outputVector[i] = vector1[i] | vector2Value;
outputIsNull[i] = inputColVector1.isNull[i] && (vector2Value == 0);
}
}
} else /* neither side is repeating */{
if (batch.selectedInUse) {
for (int j = 0; j != n; j++) {
int i = sel[j];
outputVector[i] = vector1[i] | vector2[i];
outputIsNull[i] = inputColVector1.isNull[i] && (vector2[i] == 0);
}
} else {
for (int i = 0; i != n; i++) {
outputVector[i] = vector1[i] | vector2[i];
outputIsNull[i] = inputColVector1.isNull[i] && (vector2[i] == 0);
}
}
}
} else /* !inputColVector1.noNulls && !inputColVector2.noNulls */{
// either input 1 or input 2 may have nulls
if ((inputColVector1.isRepeating) && (inputColVector2.isRepeating)) {
// All must be selected otherwise size would be zero
// Repeating property will not change.
outV.isRepeating = true;
outputVector[0] = vector1[0] | vector2[0];
outputIsNull[0] = ((vector1[0] == 0) && inputColVector2.isNull[0])
|| (inputColVector1.isNull[0] && (vector2[0] == 0))
|| (inputColVector1.isNull[0] && inputColVector2.isNull[0]);
} else if (inputColVector1.isRepeating && !inputColVector2.isRepeating) {
if (batch.selectedInUse) {
for (int j = 0; j != n; j++) {
int i = sel[j];
outputVector[i] = vector1Value | vector2[i];
outputIsNull[i] = ((vector1[0] == 0) && inputColVector2.isNull[i])
|| (inputColVector1.isNull[0] && (vector2[i] == 0))
|| (inputColVector1.isNull[0] && inputColVector2.isNull[i]);
}
} else {
for (int i = 0; i != n; i++) {
outputVector[i] = vector1Value | vector2[i];
outputIsNull[i] = ((vector1[0] == 0) && inputColVector2.isNull[i])
|| (inputColVector1.isNull[0] && (vector2[i] == 0))
|| (inputColVector1.isNull[0] && inputColVector2.isNull[i]);
}
}
} else if (!inputColVector1.isRepeating && inputColVector2.isRepeating) {
if (batch.selectedInUse) {
for (int j = 0; j != n; j++) {
int i = sel[j];
outputVector[i] = vector1[i] | vector2Value;
outputIsNull[i] = ((vector1[i] == 0) && inputColVector2.isNull[0])
|| (inputColVector1.isNull[i] && (vector2[0] == 0))
|| (inputColVector1.isNull[i] && inputColVector2.isNull[0]);
}
} else {
for (int i = 0; i != n; i++) {
outputVector[i] = vector1[i] | vector2Value;
outputIsNull[i] = ((vector1[i] == 0) && inputColVector2.isNull[0])
|| (inputColVector1.isNull[i] && (vector2[0] == 0))
|| (inputColVector1.isNull[i] && inputColVector2.isNull[0]);
}
}
} else /* neither side is repeating */{
if (batch.selectedInUse) {
for (int j = 0; j != n; j++) {
int i = sel[j];
outputVector[i] = vector1[i] | vector2[i];
outputIsNull[i] = ((vector1[i] == 0) && inputColVector2.isNull[i])
|| (inputColVector1.isNull[i] && (vector2[i] == 0))
|| (inputColVector1.isNull[i] && inputColVector2.isNull[i]);
}
} else {
for (int i = 0; i != n; i++) {
outputVector[i] = vector1[i] | vector2[i];
outputIsNull[i] = ((vector1[i] == 0) && inputColVector2.isNull[i])
|| (inputColVector1.isNull[i] && (vector2[i] == 0))
|| (inputColVector1.isNull[i] && inputColVector2.isNull[i]);
}
}
}
}
}
@Override
public String vectorExpressionParameters() {
return getColumnParamString(0, colNum1) + ", " + getColumnParamString(1, colNum2);
}
@Override
public VectorExpressionDescriptor.Descriptor getDescriptor() {
return (new VectorExpressionDescriptor.Builder())
.setMode(
VectorExpressionDescriptor.Mode.PROJECTION)
.setNumArguments(2)
.setArgumentTypes(
VectorExpressionDescriptor.ArgumentType.getType("long"),
VectorExpressionDescriptor.ArgumentType.getType("long"))
.setInputExpressionTypes(
VectorExpressionDescriptor.InputExpressionType.COLUMN,
VectorExpressionDescriptor.InputExpressionType.COLUMN).build();
}
}