maheshk114 commented on a change in pull request #1147: URL: https://github.com/apache/hive/pull/1147#discussion_r466818492
########## File path: ql/src/java/org/apache/hadoop/hive/ql/exec/vector/mapjoin/VectorMapJoinAntiJoinMultiKeyOperator.java ########## @@ -0,0 +1,400 @@ +/* + * 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.mapjoin; + +import org.apache.hadoop.hive.ql.CompilationOpContext; +import org.apache.hadoop.hive.ql.exec.JoinUtil; +import org.apache.hadoop.hive.ql.exec.vector.VectorSerializeRow; +import org.apache.hadoop.hive.ql.exec.vector.VectorizationContext; +import org.apache.hadoop.hive.ql.exec.vector.VectorizedRowBatch; +import org.apache.hadoop.hive.ql.exec.vector.expressions.VectorExpression; +import org.apache.hadoop.hive.ql.exec.vector.mapjoin.hashtable.VectorMapJoinBytesHashSet; +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.ByteStream.Output; +import org.apache.hadoop.hive.serde2.binarysortable.fast.BinarySortableSerializeWrite; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.util.Arrays; + +// Multi-Key hash table import. +// Multi-Key specific imports. + +// TODO : Duplicate codes need to merge with semi join. +/* + * Specialized class for doing a vectorized map join that is an anti join on Multi-Key + * using hash set. + */ +public class VectorMapJoinAntiJoinMultiKeyOperator extends VectorMapJoinAntiJoinGenerateResultOperator { + + private static final long serialVersionUID = 1L; + + //------------------------------------------------------------------------------------------------ + + private static final String CLASS_NAME = VectorMapJoinAntiJoinMultiKeyOperator.class.getName(); + private static final Logger LOG = LoggerFactory.getLogger(CLASS_NAME); + + protected String getLoggingPrefix() { + return super.getLoggingPrefix(CLASS_NAME); + } + + //------------------------------------------------------------------------------------------------ + + // (none) + + // The above members are initialized by the constructor and must not be + // transient. + //--------------------------------------------------------------------------- + + // The hash map for this specialized class. + private transient VectorMapJoinBytesHashSet hashSet; + + //--------------------------------------------------------------------------- + // Multi-Key specific members. + // + + // Object that can take a set of columns in row in a vectorized row batch and serialized it. + // Known to not have any nulls. + private transient VectorSerializeRow keyVectorSerializeWrite; + + // The BinarySortable serialization of the current key. + private transient Output currentKeyOutput; + + // The BinarySortable serialization of the saved key for a possible series of equal keys. + private transient Output saveKeyOutput; + + //--------------------------------------------------------------------------- + // Pass-thru constructors. + // + + /** Kryo ctor. */ + protected VectorMapJoinAntiJoinMultiKeyOperator() { + super(); + } + + public VectorMapJoinAntiJoinMultiKeyOperator(CompilationOpContext ctx) { + super(ctx); + } + + public VectorMapJoinAntiJoinMultiKeyOperator(CompilationOpContext ctx, OperatorDesc conf, + VectorizationContext vContext, VectorDesc vectorDesc) throws HiveException { + super(ctx, conf, vContext, vectorDesc); + } + + //--------------------------------------------------------------------------- + // Process Multi-Key Anti Join on a vectorized row batch. + // + + @Override + protected void commonSetup() throws HiveException { + super.commonSetup(); + + /* + * Initialize Multi-Key members for this specialized class. + */ + + keyVectorSerializeWrite = new VectorSerializeRow(BinarySortableSerializeWrite.with( + this.getConf().getKeyTblDesc().getProperties(), bigTableKeyColumnMap.length)); + keyVectorSerializeWrite.init(bigTableKeyTypeInfos, bigTableKeyColumnMap); + + currentKeyOutput = new Output(); + saveKeyOutput = new Output(); + } + + @Override + public void hashTableSetup() throws HiveException { + super.hashTableSetup(); + + /* + * Get our Multi-Key hash set information for this specialized class. + */ + + hashSet = (VectorMapJoinBytesHashSet) vectorMapJoinHashTable; + } + + @Override + public void processBatch(VectorizedRowBatch batch) throws HiveException { + + try { + + // Do the per-batch setup for an anti join. + + // (Currently none) Review comment: I have kept the code same as Semi join. may be we can take up this refactoring as part of merging the code. ########## File path: ql/src/java/org/apache/hadoop/hive/ql/exec/vector/mapjoin/VectorMapJoinAntiJoinMultiKeyOperator.java ########## @@ -0,0 +1,400 @@ +/* + * 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.mapjoin; + +import org.apache.hadoop.hive.ql.CompilationOpContext; +import org.apache.hadoop.hive.ql.exec.JoinUtil; +import org.apache.hadoop.hive.ql.exec.vector.VectorSerializeRow; +import org.apache.hadoop.hive.ql.exec.vector.VectorizationContext; +import org.apache.hadoop.hive.ql.exec.vector.VectorizedRowBatch; +import org.apache.hadoop.hive.ql.exec.vector.expressions.VectorExpression; +import org.apache.hadoop.hive.ql.exec.vector.mapjoin.hashtable.VectorMapJoinBytesHashSet; +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.ByteStream.Output; +import org.apache.hadoop.hive.serde2.binarysortable.fast.BinarySortableSerializeWrite; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.util.Arrays; + +// Multi-Key hash table import. +// Multi-Key specific imports. + +// TODO : Duplicate codes need to merge with semi join. +/* + * Specialized class for doing a vectorized map join that is an anti join on Multi-Key + * using hash set. + */ +public class VectorMapJoinAntiJoinMultiKeyOperator extends VectorMapJoinAntiJoinGenerateResultOperator { + + private static final long serialVersionUID = 1L; + + //------------------------------------------------------------------------------------------------ + + private static final String CLASS_NAME = VectorMapJoinAntiJoinMultiKeyOperator.class.getName(); + private static final Logger LOG = LoggerFactory.getLogger(CLASS_NAME); + + protected String getLoggingPrefix() { + return super.getLoggingPrefix(CLASS_NAME); + } + + //------------------------------------------------------------------------------------------------ + + // (none) + + // The above members are initialized by the constructor and must not be + // transient. + //--------------------------------------------------------------------------- + + // The hash map for this specialized class. + private transient VectorMapJoinBytesHashSet hashSet; + + //--------------------------------------------------------------------------- + // Multi-Key specific members. + // + + // Object that can take a set of columns in row in a vectorized row batch and serialized it. + // Known to not have any nulls. + private transient VectorSerializeRow keyVectorSerializeWrite; + + // The BinarySortable serialization of the current key. + private transient Output currentKeyOutput; + + // The BinarySortable serialization of the saved key for a possible series of equal keys. + private transient Output saveKeyOutput; + + //--------------------------------------------------------------------------- + // Pass-thru constructors. + // + + /** Kryo ctor. */ + protected VectorMapJoinAntiJoinMultiKeyOperator() { + super(); + } + + public VectorMapJoinAntiJoinMultiKeyOperator(CompilationOpContext ctx) { + super(ctx); + } + + public VectorMapJoinAntiJoinMultiKeyOperator(CompilationOpContext ctx, OperatorDesc conf, + VectorizationContext vContext, VectorDesc vectorDesc) throws HiveException { + super(ctx, conf, vContext, vectorDesc); + } + + //--------------------------------------------------------------------------- + // Process Multi-Key Anti Join on a vectorized row batch. + // + + @Override + protected void commonSetup() throws HiveException { + super.commonSetup(); + + /* + * Initialize Multi-Key members for this specialized class. + */ + + keyVectorSerializeWrite = new VectorSerializeRow(BinarySortableSerializeWrite.with( + this.getConf().getKeyTblDesc().getProperties(), bigTableKeyColumnMap.length)); + keyVectorSerializeWrite.init(bigTableKeyTypeInfos, bigTableKeyColumnMap); + + currentKeyOutput = new Output(); + saveKeyOutput = new Output(); + } + + @Override + public void hashTableSetup() throws HiveException { + super.hashTableSetup(); + + /* + * Get our Multi-Key hash set information for this specialized class. + */ + + hashSet = (VectorMapJoinBytesHashSet) vectorMapJoinHashTable; + } + + @Override + public void processBatch(VectorizedRowBatch batch) throws HiveException { + + try { + + // Do the per-batch setup for an anti join. + + // (Currently none) + // antiPerBatchSetup(batch); + + // For anti joins, we may apply the filter(s) now. + for(VectorExpression ve : bigTableFilterExpressions) { + ve.evaluate(batch); + } + + final int inputLogicalSize = batch.size; + if (inputLogicalSize == 0) { + return; + } + + // Perform any key expressions. Results will go into scratch columns. + if (bigTableKeyExpressions != null) { + for (VectorExpression ve : bigTableKeyExpressions) { + ve.evaluate(batch); + } + } + + /* + * Multi-Key specific declarations. + */ + + // None. + + /* + * Multi-Key Long check for repeating. + */ + + // If all BigTable input columns to key expressions are isRepeating, then + // calculate key once; lookup once. + boolean allKeyInputColumnsRepeating; + if (bigTableKeyColumnMap.length == 0) { + allKeyInputColumnsRepeating = false; + } else { + allKeyInputColumnsRepeating = true; + for (int i = 0; i < bigTableKeyColumnMap.length; i++) { + if (!batch.cols[bigTableKeyColumnMap[i]].isRepeating) { + allKeyInputColumnsRepeating = false; + break; + } + } + } + + if (allKeyInputColumnsRepeating) { + + /* + * Repeating. + */ + + // All key input columns are repeating. Generate key once. Lookup once. + // Since the key is repeated, we must use entry 0 regardless of selectedInUse. + + /* + * Multi-Key specific repeated lookup. + */ + + keyVectorSerializeWrite.setOutput(currentKeyOutput); + keyVectorSerializeWrite.serializeWrite(batch, 0); + JoinUtil.JoinResult joinResult; + if (keyVectorSerializeWrite.getHasAnyNulls()) { + // If right side is null, its a match for anti join. + joinResult = JoinUtil.JoinResult.MATCH; + } else { + byte[] keyBytes = currentKeyOutput.getData(); + int keyLength = currentKeyOutput.getLength(); + // LOG.debug(CLASS_NAME + " processOp all " + displayBytes(keyBytes, 0, keyLength)); + joinResult = hashSet.contains(keyBytes, 0, keyLength, hashSetResults[0]); + // reverse the join result from hash table for anti join. + if (joinResult == JoinUtil.JoinResult.NOMATCH) { + joinResult = JoinUtil.JoinResult.MATCH; + } else if (joinResult == JoinUtil.JoinResult.MATCH) { + joinResult = JoinUtil.JoinResult.NOMATCH; + } + } + + /* + * Common repeated join result processing. + */ + + if (LOG.isDebugEnabled()) { + LOG.debug(CLASS_NAME + " batch #" + batchCounter + " repeated joinResult " + joinResult.name()); + } + finishAntiRepeated(batch, joinResult, hashSetResults[0]); + } else { + + /* + * NOT Repeating. + */ + + if (LOG.isDebugEnabled()) { + LOG.debug(CLASS_NAME + " batch #" + batchCounter + " non-repeated"); + } + + // We remember any matching rows in matches / matchSize. At the end of the loop, + // selected / batch.size will represent both matching and non-matching rows for outer join. + // Only deferred rows will have been removed from selected. + int selected[] = batch.selected; + boolean selectedInUse = batch.selectedInUse; + + int hashSetResultCount = 0; + int allMatchCount = 0; + int spillCount = 0; + + /* + * Multi-Key specific variables. + */ + + Output temp; + + // We optimize performance by only looking up the first key in a series of equal keys. + boolean haveSaveKey = false; + JoinUtil.JoinResult saveJoinResult = JoinUtil.JoinResult.NOMATCH; + + // Logical loop over the rows in the batch since the batch may have selected in use. + for (int logical = 0; logical < inputLogicalSize; logical++) { + int batchIndex = (selectedInUse ? selected[logical] : logical); + + /* + * Multi-Key get key. + */ + + // Generate binary sortable key for current row in vectorized row batch. + keyVectorSerializeWrite.setOutput(currentKeyOutput); + keyVectorSerializeWrite.serializeWrite(batch, batchIndex); + boolean isAnyNull = keyVectorSerializeWrite.getHasAnyNulls(); + + // LOG.debug(CLASS_NAME + " currentKey " + + // VectorizedBatchUtil.displayBytes(currentKeyOutput.getData(), 0, currentKeyOutput.getLength())); + + /* + * Equal key series checking. + */ + + if (isAnyNull || !haveSaveKey || !saveKeyOutput.arraysEquals(currentKeyOutput)) { + + // New key. + + if (haveSaveKey) { Review comment: I have kept the code same as Semi join. may be we can take up this refactoring as part of merging the code. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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