lgbo-ustc commented on code in PR #10022: URL: https://github.com/apache/incubator-gluten/pull/10022#discussion_r2163729265
########## gluten-flink/planner/src/main/java/org/apache/gluten/rexnode/functions/ReinterpretRexCallConverter.java: ########## @@ -0,0 +1,194 @@ +/* + * 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.gluten.rexnode.functions; + +import org.apache.gluten.rexnode.RexConversionContext; +import org.apache.gluten.util.LogicalTypeConverter; + +import io.github.zhztheplayer.velox4j.expression.CallTypedExpr; +import io.github.zhztheplayer.velox4j.expression.TypedExpr; + +import org.apache.flink.table.planner.calcite.FlinkTypeFactory; +import org.apache.flink.table.runtime.types.PlannerTypeUtils; +import org.apache.flink.table.types.logical.LogicalType; +import org.apache.flink.table.types.logical.LogicalTypeRoot; + +import org.apache.calcite.rex.RexCall; +import org.apache.calcite.rex.RexFieldAccess; +import org.apache.calcite.rex.RexInputRef; +import org.apache.calcite.rex.RexNode; + +import java.util.ArrayList; +import java.util.Arrays; +import java.util.List; +import java.util.function.Consumer; + +import static org.apache.flink.table.types.logical.LogicalTypeRoot.BIGINT; +import static org.apache.flink.table.types.logical.LogicalTypeRoot.DATE; +import static org.apache.flink.table.types.logical.LogicalTypeRoot.INTEGER; +import static org.apache.flink.table.types.logical.LogicalTypeRoot.INTERVAL_DAY_TIME; +import static org.apache.flink.table.types.logical.LogicalTypeRoot.INTERVAL_YEAR_MONTH; +import static org.apache.flink.table.types.logical.LogicalTypeRoot.TIMESTAMP_WITHOUT_TIME_ZONE; +import static org.apache.flink.table.types.logical.LogicalTypeRoot.TIME_WITHOUT_TIME_ZONE; + +public class ReinterpretRexCallConverter extends BaseRexCallConverter { + + private static final String FUNCTION_NAME = "cast"; + + public ReinterpretRexCallConverter() { + super(FUNCTION_NAME); + } + + private boolean isSupported(LogicalTypeRoot targetType, LogicalTypeRoot resultType) { + // internal reinterpretation of temporal types: from Flink + // `ScalaOperatorGens#generateReinterpret` + // Date -> Integer + // Time -> Integer + // Timestamp -> Long + // Integer -> Date + // Integer -> Time + // Long -> Timestamp + // Integer -> Interval Months + // Long -> Interval Millis + // Interval Months -> Integer + // Interval Millis -> Long + // Date -> Long + // Time -> Long + // Interval Months -> Long + if (targetType.equals(DATE) && resultType.equals(INTEGER)) { + return true; + } else if (targetType.equals(TIME_WITHOUT_TIME_ZONE) && resultType.equals(INTEGER)) { + return true; + } else if (targetType.equals(INTEGER) && resultType.equals(DATE)) { + return true; + } else if (targetType.equals(INTEGER) && resultType.equals(TIME_WITHOUT_TIME_ZONE)) { + return true; + } else if (targetType.equals(INTEGER) && resultType.equals(INTERVAL_YEAR_MONTH)) { + return true; + } else if (targetType.equals(BIGINT) && resultType.equals(INTERVAL_DAY_TIME)) { + return true; + } else if (targetType.equals(INTERVAL_YEAR_MONTH) && resultType.equals(INTEGER)) { + return true; + } else if (targetType.equals(INTERVAL_DAY_TIME) && resultType.equals(BIGINT)) { + return true; + } else if (targetType.equals(DATE) && resultType.equals(BIGINT)) { + return true; + } else if (targetType.equals(TIME_WITHOUT_TIME_ZONE) && resultType.equals(BIGINT)) { + return true; + } else if (targetType.equals(INTERVAL_YEAR_MONTH) && resultType.equals(BIGINT)) { + return true; + } else if (targetType.equals(TIMESTAMP_WITHOUT_TIME_ZONE) && resultType.equals(BIGINT)) { + return true; + } else if (targetType.equals(BIGINT) && resultType.equals(TIMESTAMP_WITHOUT_TIME_ZONE)) { + return true; + } + return false; + } + + @Override + public boolean isSupported(RexCall callNode, RexConversionContext context) { + if (callNode.getOperands().size() != 1) { + return false; + } + RexNode rexNode = callNode.getOperands().get(0); + LogicalType resultType = FlinkTypeFactory.toLogicalType(callNode.getType()); + LogicalType targetType = FlinkTypeFactory.toLogicalType(rexNode.getType()); + if (PlannerTypeUtils.isInteroperable(targetType, resultType)) { + return true; + } else if (resultType.equals(targetType)) { + return true; + } else { + LogicalTypeRoot targetTypeRoot = targetType.getTypeRoot(); + LogicalTypeRoot resultTypeRoot = resultType.getTypeRoot(); + return isSupported(targetTypeRoot, resultTypeRoot); + } + } + + private List<String> getRexNodeInputNames(RexNode node, List<String> fieldNames) { Review Comment: 👌 -- This is an automated message from the Apache Git Service. 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