weijietong commented on a change in pull request #1334: DRILL-6385: Support JPPD feature URL: https://github.com/apache/drill/pull/1334#discussion_r210146226
########## File path: exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/filter/RuntimeFilterRecordBatch.java ########## @@ -0,0 +1,222 @@ +/* + * 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.drill.exec.physical.impl.filter; + +import org.apache.drill.common.exceptions.UserException; +import org.apache.drill.common.expression.ExpressionPosition; +import org.apache.drill.common.expression.LogicalExpression; +import org.apache.drill.common.expression.PathSegment; +import org.apache.drill.common.expression.SchemaPath; +import org.apache.drill.exec.exception.OutOfMemoryException; +import org.apache.drill.exec.exception.SchemaChangeException; +import org.apache.drill.exec.expr.ValueVectorReadExpression; +import org.apache.drill.exec.expr.fn.impl.ValueVectorHashHelper; +import org.apache.drill.exec.ops.FragmentContext; +import org.apache.drill.exec.physical.config.Filter; +import org.apache.drill.exec.record.AbstractSingleRecordBatch; +import org.apache.drill.exec.record.BatchSchema.SelectionVectorMode; +import org.apache.drill.exec.record.RecordBatch; +import org.apache.drill.exec.record.TypedFieldId; +import org.apache.drill.exec.record.selection.SelectionVector2; +import org.apache.drill.exec.record.selection.SelectionVector4; +import org.apache.drill.exec.work.filter.BloomFilter; +import org.apache.drill.exec.work.filter.RuntimeFilterWritable; +import java.util.ArrayList; +import java.util.BitSet; +import java.util.HashMap; +import java.util.List; +import java.util.Map; + +/** + * A RuntimeFilterRecordBatch steps over the ScanBatch. If the ScanBatch participates + * in the HashJoinBatch and can be applied by a RuntimeFilter, it will generate a filtered + * SV2, otherwise will generate a same recordCount-originalRecordCount SV2 which will not affect + * the Query's performance ,but just do a memory transfer by the later RemovingRecordBatch op. + */ +public class RuntimeFilterRecordBatch extends AbstractSingleRecordBatch<Filter> { + private SelectionVector2 sv2; + + private ValueVectorHashHelper.Hash64 hash64; + private Map<String, Integer> field2id = new HashMap<>(); + private List<String> toFilterFields; + private int originalRecordCount; + private int recordCount; + private static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(RuntimeFilterRecordBatch.class); + + public RuntimeFilterRecordBatch(Filter pop, RecordBatch incoming, FragmentContext context) throws OutOfMemoryException { + super(pop, context, incoming); + } + + @Override + public FragmentContext getContext() { + return context; + } + + @Override + public int getRecordCount() { + return sv2.getCount(); + } + + @Override + public SelectionVector2 getSelectionVector2() { + return sv2; + } + + @Override + public SelectionVector4 getSelectionVector4() { + return null; + } + + @Override + protected IterOutcome doWork() { + container.transferIn(incoming.getContainer()); + originalRecordCount = incoming.getRecordCount(); + sv2.setOriginalRecordCount(originalRecordCount); + try { + applyRuntimeFilter(); + } catch (SchemaChangeException e) { + throw new UnsupportedOperationException(e); + } + return getFinalOutcome(false); + } + + @Override + public void close() { + if (sv2 != null) { + sv2.clear(); + } + super.close(); + } + + @Override + protected boolean setupNewSchema() throws SchemaChangeException { + if (sv2 != null) { + sv2.clear(); + } + + switch (incoming.getSchema().getSelectionVectorMode()) { + case NONE: + if (sv2 == null) { + sv2 = new SelectionVector2(oContext.getAllocator()); + } + break; + case TWO_BYTE: + sv2 = new SelectionVector2(oContext.getAllocator()); + break; + case FOUR_BYTE: + + default: + throw new UnsupportedOperationException(); + } + + if (container.isSchemaChanged()) { + container.buildSchema(SelectionVectorMode.TWO_BYTE); + return true; + } + return false; + } + + /** + * + * @return True means rows are filtered by the RuntimeFilter , SelectionVector2 is set. + * False means not affected by the RuntimeFilter, SelectionVector2 is no set. + * @throws SchemaChangeException + */ + private void applyRuntimeFilter() throws SchemaChangeException { + RuntimeFilterWritable runtimeFilterWritable = context.getRuntimeFilter(); + if (runtimeFilterWritable == null) { + sv2.setRecordCount(incoming.getRecordCount()); Review comment: make sense ,will update. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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