Github user manishgupta88 commented on a diff in the pull request: https://github.com/apache/carbondata/pull/2822#discussion_r227000087 --- Diff: core/src/main/java/org/apache/carbondata/core/scan/result/vector/impl/directread/ColumnarVectorWrapperDirectWithDeleteDeltaAndInvertedIndex.java --- @@ -0,0 +1,258 @@ +/* + * 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.carbondata.core.scan.result.vector.impl.directread; + +import java.math.BigDecimal; +import java.util.BitSet; + +import org.apache.carbondata.core.metadata.datatype.DataType; +import org.apache.carbondata.core.metadata.datatype.DataTypes; +import org.apache.carbondata.core.metadata.datatype.DecimalType; +import org.apache.carbondata.core.scan.result.vector.CarbonColumnVector; +import org.apache.carbondata.core.scan.result.vector.impl.CarbonColumnVectorImpl; + +/** + * Column vector for column pages which has delete delta and inverted index, so it uses delta biset + * to filter out data and use inverted index before filling to actual vector + */ +class ColumnarVectorWrapperDirectWithDeleteDeltaAndInvertedIndex + extends AbstractCarbonColumnarVector implements ConvertableVector { + + private BitSet deletedRows; + + private int[] invertedIndex; + + private CarbonColumnVectorImpl carbonColumnVector; + + private CarbonColumnVector columnVector; + + private int precision; + + private BitSet nullBits; + + private boolean isnullBitsExists; + + public ColumnarVectorWrapperDirectWithDeleteDeltaAndInvertedIndex( + CarbonColumnVector vectorWrapper, BitSet deletedRows, int[] invertedIndex, BitSet nullBits, + boolean isnullBitsExists) { + this.deletedRows = deletedRows; + this.invertedIndex = invertedIndex; + carbonColumnVector = new CarbonColumnVectorImpl(invertedIndex.length, vectorWrapper.getType()); --- End diff -- If feasible try to merge this code with class `ColumnarVectorWrapperDirectWithInvertedIndex`. Either one can be extended from another or a flag can be used to distinguish. I think it is better to extend, that will keep the code clean
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