LogicalGetToPhysicalSeqScan类 参考

#include <implementation_rules.h>

类 LogicalGetToPhysicalSeqScan 继承关系图:

Public 成员函数
void	transform (OperatorNode *input, std::vector< std::unique_ptr< OperatorNode > > *transformed, OptimizerContext *context) const override
Public 成员函数 继承自 Rule
Pattern *	get_match_pattern () const
bool	is_physical () const
bool	is_logical () const
RuleType	get_type ()
uint32_t	get_rule_idx ()
virtual RulePromise	promise (GroupExpr *group_expr) const
virtual void	transform (OperatorNode *input, std::vector< std::unique_ptr< OperatorNode > > *transformed, OptimizerContext *context) const =0

额外继承的成员函数
Protected 属性 继承自 Rule
RuleType	type_
unique_ptr< Pattern >	match_pattern_

详细描述

Rule transforms Logical Scan -> Physical Scan

成员函数说明

transform()

void LogicalGetToPhysicalSeqScan::transform ( OperatorNode *  input, std::vector< std::unique_ptr< OperatorNode > > *  transformed, OptimizerContext *  context  ) const

overridevirtual

Convert a "before" operator tree to an "after" operator tree

参数

input	The "before" operator tree
transformed	Vector of "after" operator trees
context	The current optimization context

实现了 Rule.

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该类的文档由以下文件生成:

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