content: /*
   * 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.sql;
  
  import org.apache.calcite.sql.type.OperandTypes;
  import org.apache.calcite.sql.type.ReturnTypes;
  import org.apache.calcite.sql.type.SqlReturnTypeInference;
  import org.apache.calcite.util.Optionality;
  
  /**
   * Operator which aggregates sets of values into a result.
   */
  public class SqlRankFunction extends SqlAggFunction {
    //~ Constructors -----------------------------------------------------------
  
    @Deprecated
    public SqlRankFunction(boolean requiresOrder, SqlKind kind) {
      this(kind, ReturnTypes.INTEGER, requiresOrder);
    }
  
    public SqlRankFunction(SqlKind kind, SqlReturnTypeInference returnTypes,
        boolean requiresOrder) {
      super(kind.name(), null, kind, returnTypes, null,
          OperandTypes.NILADIC, SqlFunctionCategory.NUMERIC, requiresOrder,
          true, Optionality.FORBIDDEN);
    }
  
    //~ Methods ----------------------------------------------------------------
  
    @Override public boolean allowsFraming() {
      return false;
    }
  
  }
  