kishoreg commented on a change in pull request #5461: URL: https://github.com/apache/incubator-pinot/pull/5461#discussion_r432162832
########## File path: pinot-core/src/main/java/org/apache/pinot/core/operator/transform/function/BinaryOperatorTransformFunction.java ########## @@ -0,0 +1,114 @@ +/** + * 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.pinot.core.operator.transform.function; + +import java.util.List; +import java.util.Map; +import org.apache.pinot.core.common.DataSource; +import org.apache.pinot.core.operator.blocks.ProjectionBlock; +import org.apache.pinot.core.operator.transform.TransformResultMetadata; +import org.apache.pinot.core.plan.DocIdSetPlanNode; +import org.apache.pinot.spi.data.FieldSpec; +import org.apache.pinot.spi.utils.ByteArray; + + +/** + * <code>BinaryOperatorTransformFunction</code> abstracts common functions for binary operators (=, !=, >=, >, <=, <) + * The results are in boolean format and stored as an integer array with 1 represents true and 0 represents false. + * + */ +public abstract class BinaryOperatorTransformFunction extends BaseTransformFunction { + + protected TransformFunction _leftTransformFunction; + protected TransformFunction _rightTransformFunction; + protected int[] _results; + + @Override + public void init(List<TransformFunction> arguments, Map<String, DataSource> dataSourceMap) { + // Check that there are more than 1 arguments + if (arguments.size() != 2) { Review comment: also, check that the return types are comparable, for e.g. if one returns string and other is int, we should throw exception ########## File path: pinot-core/src/main/java/org/apache/pinot/core/operator/transform/function/BinaryOperatorTransformFunction.java ########## @@ -0,0 +1,114 @@ +/** + * 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.pinot.core.operator.transform.function; + +import java.util.List; +import java.util.Map; +import org.apache.pinot.core.common.DataSource; +import org.apache.pinot.core.operator.blocks.ProjectionBlock; +import org.apache.pinot.core.operator.transform.TransformResultMetadata; +import org.apache.pinot.core.plan.DocIdSetPlanNode; +import org.apache.pinot.spi.data.FieldSpec; +import org.apache.pinot.spi.utils.ByteArray; + + +/** + * <code>BinaryOperatorTransformFunction</code> abstracts common functions for binary operators (=, !=, >=, >, <=, <) + * The results are in boolean format and stored as an integer array with 1 represents true and 0 represents false. + * + */ +public abstract class BinaryOperatorTransformFunction extends BaseTransformFunction { + + protected TransformFunction _leftTransformFunction; + protected TransformFunction _rightTransformFunction; + protected int[] _results; + + @Override + public void init(List<TransformFunction> arguments, Map<String, DataSource> dataSourceMap) { + // Check that there are more than 1 arguments + if (arguments.size() != 2) { + throw new IllegalArgumentException("Exact 2 arguments are required for greater transform function"); + } + _leftTransformFunction = arguments.get(0); + _rightTransformFunction = arguments.get(1); + } + + @Override + public TransformResultMetadata getResultMetadata() { + return INT_SV_NO_DICTIONARY_METADATA; + } + + protected void fillResultArray(ProjectionBlock projectionBlock) { + if (_results == null) { + _results = new int[DocIdSetPlanNode.MAX_DOC_PER_CALL]; + } + FieldSpec.DataType dataType = _leftTransformFunction.getResultMetadata().getDataType(); Review comment: we should have two separate switch statements for left and right transform functions right? ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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