implementation_rules.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:
         http://license.coscl.org.cn/MulanPSL2
THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
See the Mulan PSL v2 for more details. */
 
#pragma once
 
#include "sql/optimizer/cascade/rules.h"
 
class LogicalGetToPhysicalSeqScan : public Rule
{
public:
  LogicalGetToPhysicalSeqScan();
 
  void transform(OperatorNode *input, std::vector<std::unique_ptr<OperatorNode>> *transformed,
      OptimizerContext *context) const override;
};
 
// TODO: support index scan
// class LogicalGetToPhysicalIndexScan : public Rule {
// };
 
class LogicalProjectionToProjection : public Rule
{
public:
  LogicalProjectionToProjection();
 
  void transform(OperatorNode *input, std::vector<std::unique_ptr<OperatorNode>> *transformed,
      OptimizerContext *context) const override;
};
 
class LogicalInsertToInsert : public Rule
{
public:
  LogicalInsertToInsert();
 
  void transform(OperatorNode *input, std::vector<std::unique_ptr<OperatorNode>> *transformed,
      OptimizerContext *context) const override;
};
 
class LogicalExplainToExplain : public Rule
{
public:
  LogicalExplainToExplain();
 
  void transform(OperatorNode *input, std::vector<std::unique_ptr<OperatorNode>> *transformed,
      OptimizerContext *context) const override;
};
 
class LogicalCalcToCalc : public Rule
{
public:
  LogicalCalcToCalc();
 
  void transform(OperatorNode *input, std::vector<std::unique_ptr<OperatorNode>> *transformed,
      OptimizerContext *context) const override;
};
 
class LogicalDeleteToDelete : public Rule
{
public:
  LogicalDeleteToDelete();
 
  void transform(OperatorNode *input, std::vector<std::unique_ptr<OperatorNode>> *transformed,
      OptimizerContext *context) const override;
};
 
class LogicalPredicateToPredicate : public Rule
{
public:
  LogicalPredicateToPredicate();
 
  void transform(OperatorNode *input, std::vector<std::unique_ptr<OperatorNode>> *transformed,
      OptimizerContext *context) const override;
};
 
// class LogicalGroupByToAggregation : public Rule {
//  public:
//   LogicalGroupByToAggregation();
 
//   void transform(OperatorNode* input,
//                          std::vector<std::unique_ptr<OperatorNode>> *transformed,
//                          OptimizerContext *context) const override;
// };
 
// class LogicalGroupByToHashGroupBy : public Rule {
//  public:
//   LogicalGroupByToHashGroupBy();
 
//   void transform(OperatorNode* input,
//                          std::vector<std::unique_ptr<OperatorNode>> *transformed,
//                          OptimizerContext *context) const override;
// };