godfreyhe commented on a change in pull request #14402: URL: https://github.com/apache/flink/pull/14402#discussion_r546601105
########## File path: flink-table/flink-table-planner-blink/src/main/java/org/apache/flink/table/planner/plan/nodes/exec/stream/StreamExecChangelogNormalize.java ########## @@ -0,0 +1,115 @@ +/* + * 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.flink.table.planner.plan.nodes.exec.stream; + +import org.apache.flink.api.common.typeutils.TypeSerializer; +import org.apache.flink.api.dag.Transformation; +import org.apache.flink.streaming.api.operators.KeyedProcessOperator; +import org.apache.flink.streaming.api.operators.OneInputStreamOperator; +import org.apache.flink.streaming.api.transformations.OneInputTransformation; +import org.apache.flink.table.api.TableConfig; +import org.apache.flink.table.data.RowData; +import org.apache.flink.table.planner.delegation.StreamPlanner; +import org.apache.flink.table.planner.plan.nodes.exec.ExecEdge; +import org.apache.flink.table.planner.plan.nodes.exec.ExecNode; +import org.apache.flink.table.planner.plan.utils.AggregateUtil; +import org.apache.flink.table.planner.plan.utils.KeySelectorUtil; +import org.apache.flink.table.runtime.keyselector.RowDataKeySelector; +import org.apache.flink.table.runtime.operators.bundle.KeyedMapBundleOperator; +import org.apache.flink.table.runtime.operators.bundle.trigger.CountBundleTrigger; +import org.apache.flink.table.runtime.operators.deduplicate.ProcTimeDeduplicateKeepLastRowFunction; +import org.apache.flink.table.runtime.operators.deduplicate.ProcTimeMiniBatchDeduplicateKeepLastRowFunction; +import org.apache.flink.table.runtime.typeutils.InternalTypeInfo; +import org.apache.flink.table.types.logical.RowType; + +import java.util.Collections; + +/** + * Stream exec node which normalizes a changelog stream which maybe an upsert stream or + * a changelog stream containing duplicate events. This node normalize such stream into a regular + * changelog stream that contains INSERT/UPDATE_BEFORE/UPDATE_AFTER/DELETE records without duplication. + */ +public class StreamExecChangelogNormalize extends StreamExecNode<RowData> { + private final int[] uniqueKeys; + private final boolean generateUpdateBefore; + private final boolean isMiniBatchEnabled; + + public StreamExecChangelogNormalize( + int[] uniqueKeys, + boolean generateUpdateBefore, + boolean isMiniBatchEnabled, Review comment: An ExecNode(with its attributes) should correspond to a specific operator, so that state compatibility is guaranteed ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
