Optimizer类 参考

cascade optimizer TODO: currently, Optimizer is used for CBO optimization. need to unify the optimizer in miniob 更多...

#include <optimizer.h>

Public 成员函数
std::unique_ptr< PhysicalOperator >	optimize (OperatorNode *op_tree)
std::unique_ptr< PhysicalOperator >	choose_best_plan (int root_id)

Private 成员函数
void	optimize_loop (int root_group_id)
void	execute_task_stack (PendingTasks *task_stack, int root_group_id, OptimizerContext *root_context)

Private 属性
CostModel	cost_model_
std::unique_ptr< OptimizerContext >	context_

详细描述

cascade optimizer TODO: currently, Optimizer is used for CBO optimization. need to unify the optimizer in miniob

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该类的文档由以下文件生成:

• src/observer/sql/optimizer/cascade/optimizer.h
• src/observer/sql/optimizer/cascade/optimizer.cpp