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/*
 * 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.calcite.schema;

import java.util.List;

/**
 * Function that returns a {@link Table}.
 *
 * 

As the name "macro" implies, this is invoked at "compile time", that is, * during query preparation. Compile-time expansion of table expressions allows * for some very powerful query-optimizations.

*/ public interface TableMacro extends Function { /** * Applies arguments to yield a table. * * @param arguments Arguments * @return Table */ TranslatableTable apply(List arguments); } // End TableMacro.java