group_by_logical_operator.h

/* Copyright (c) 2021 OceanBase and/or its affiliates. All rights reserved.
miniob is licensed under Mulan PSL v2.
You can use this software according to the terms and conditions of the Mulan PSL v2.
You may obtain a copy of Mulan PSL v2 at:
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THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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See the Mulan PSL v2 for more details. */
 
//
// Created by WangYunlai on 2024/05/29.
//
 
#pragma once
 
#include "sql/operator/logical_operator.h"
 
class GroupByLogicalOperator : public LogicalOperator
{
public:
  GroupByLogicalOperator(vector<unique_ptr<Expression>> &&group_by_exprs, vector<Expression *> &&expressions);
 
  virtual ~GroupByLogicalOperator() = default;
 
  LogicalOperatorType type() const override { return LogicalOperatorType::GROUP_BY; }
  OpType              get_op_type() const override { return OpType::LOGICALGROUPBY; }
 
  auto &group_by_expressions() { return group_by_expressions_; }
  auto &aggregate_expressions() { return aggregate_expressions_; }
 
private:
  vector<unique_ptr<Expression>> group_by_expressions_;
  vector<Expression *>           aggregate_expressions_;  
};