dawidwys commented on a change in pull request #8018: [FLINK-11884][table] Separate creation and validation of LogicalNodes from TableImpl URL: https://github.com/apache/flink/pull/8018#discussion_r269524560
########## File path: flink-table/flink-table-api-java/src/main/java/org/apache/flink/table/expressions/ExpressionExtractionUtils.java ########## @@ -0,0 +1,211 @@ +/* + * 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.expressions; + +import org.apache.flink.api.java.tuple.Tuple2; + +import java.util.Arrays; +import java.util.Collections; +import java.util.HashSet; +import java.util.LinkedHashMap; +import java.util.List; +import java.util.Map; +import java.util.Set; +import java.util.function.Supplier; +import java.util.stream.Collectors; + +import static org.apache.flink.table.expressions.ApiExpressionUtils.unresolvedFieldRef; +import static org.apache.flink.table.expressions.BuiltInFunctionDefinitions.PROCTIME; +import static org.apache.flink.table.expressions.BuiltInFunctionDefinitions.ROWTIME; +import static org.apache.flink.table.expressions.BuiltInFunctionDefinitions.WINDOW_END; +import static org.apache.flink.table.expressions.BuiltInFunctionDefinitions.WINDOW_START; +import static org.apache.flink.table.expressions.FunctionDefinition.Type.AGGREGATE_FUNCTION; + +/** + * Utilities for splitting {@link Expression} into subcategories, e.g. into projections, aggregations, window properties Review comment: Did you mean 120? If so yes, I missed the 1 character limit, sorry :( If you meant 100, then I guess this should be first settled in the community, as I've heard contradicting opinions on that matter from other committers. ---------------------------------------------------------------- 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: [email protected] With regards, Apache Git Services
