org.apache.hadoop.hive.ql.exec.vector.VectorMapJoinOuterFilteredOperator Maven / Gradle / Ivy
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* to you under the Apache License, Version 2.0 (the
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* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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package org.apache.hadoop.hive.ql.exec.vector;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hive.ql.CompilationOpContext;
import org.apache.hadoop.hive.ql.metadata.HiveException;
import org.apache.hadoop.hive.ql.plan.OperatorDesc;
import org.apache.hadoop.hive.ql.plan.VectorDesc;
import org.apache.hadoop.hive.serde2.objectinspector.StructObjectInspector;
import hive.com.google.common.annotations.VisibleForTesting;
/**
* This is the *NON-NATIVE* vector map join operator for just LEFT OUTER JOIN and filtered.
*
* It is a row pass-thru so that super MapJoinOperator can do the outer join filtering properly.
*
*/
public class VectorMapJoinOuterFilteredOperator extends VectorMapJoinBaseOperator {
private static final long serialVersionUID = 1L;
// The above members are initialized by the constructor and must not be
// transient.
//---------------------------------------------------------------------------
private transient boolean firstBatch;
private transient VectorExtractRow vectorExtractRow;
protected transient Object[] singleRow;
protected transient int savePosBigTable;
/** Kryo ctor. */
@VisibleForTesting
public VectorMapJoinOuterFilteredOperator() {
super();
}
public VectorMapJoinOuterFilteredOperator(CompilationOpContext ctx) {
super(ctx);
}
public VectorMapJoinOuterFilteredOperator(CompilationOpContext ctx, OperatorDesc conf,
VectorizationContext vContext, VectorDesc vectorDesc) throws HiveException {
super(ctx, conf, vContext, vectorDesc);
}
@Override
public void initializeOp(Configuration hconf) throws HiveException {
final int posBigTable = conf.getPosBigTable();
savePosBigTable = posBigTable;
// We need a input object inspector that is for the row we will extract out of the
// vectorized row batch, not for example, an original inspector for an ORC table, etc.
inputObjInspectors[posBigTable] =
VectorizedBatchUtil.convertToStandardStructObjectInspector((StructObjectInspector) inputObjInspectors[posBigTable]);
// Call super VectorMapJoinOuterFilteredOperator, which calls super MapJoinOperator with
// new input inspector.
super.initializeOp(hconf);
firstBatch = true;
}
@Override
public void process(Object data, int tag) throws HiveException {
VectorizedRowBatch batch = (VectorizedRowBatch) data;
// Preparation for hybrid grace hash join
this.tag = tag;
if (scratchBatch == null) {
scratchBatch = VectorizedBatchUtil.makeLike(batch);
}
if (firstBatch) {
vectorExtractRow = new VectorExtractRow();
vectorExtractRow.init((StructObjectInspector) inputObjInspectors[savePosBigTable], vContext.getProjectedColumns());
singleRow = new Object[vectorExtractRow.getCount()];
firstBatch = false;
}
// VectorizedBatchUtil.debugDisplayBatch( batch, "VectorReduceSinkOperator processOp ");
if (batch.selectedInUse) {
int selected[] = batch.selected;
for (int logical = 0 ; logical < batch.size; logical++) {
int batchIndex = selected[logical];
vectorExtractRow.extractRow(batch, batchIndex, singleRow);
super.process(singleRow, tag);
}
} else {
for (int batchIndex = 0 ; batchIndex < batch.size; batchIndex++) {
vectorExtractRow.extractRow(batch, batchIndex, singleRow);
super.process(singleRow, tag);
}
}
}
}