pgaref commented on a change in pull request #1147: URL: https://github.com/apache/hive/pull/1147#discussion_r458169723
########## 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: leftover? ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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