PredicatePhysicalOperator类 参考

过滤/谓词物理算子 更多...

#include <predicate_physical_operator.h>

类 PredicatePhysicalOperator 继承关系图:

Public 成员函数
	PredicatePhysicalOperator (std::unique_ptr< Expression > expr)
PhysicalOperatorType	type () const override
RC	open (Trx *trx) override
RC	next () override
RC	close () override
Tuple *	current_tuple () override
Public 成员函数 继承自 PhysicalOperator
virtual std::string	name () const
virtual std::string	param () const
virtual PhysicalOperatorType	type () const =0
virtual RC	open (Trx *trx)=0
virtual RC	next ()=0
virtual RC	close ()=0
virtual Tuple *	current_tuple ()=0
void	add_child (std::unique_ptr< PhysicalOperator > oper)
std::vector< std::unique_ptr< PhysicalOperator > > &	children ()

Private 属性
std::unique_ptr< Expression >	expression_

额外继承的成员函数
Protected 属性 继承自 PhysicalOperator
std::vector< std::unique_ptr< PhysicalOperator > >	children_

详细描述

过滤/谓词物理算子

成员函数说明

close()

RC PredicatePhysicalOperator::close ( )

overridevirtual

实现了 PhysicalOperator.

current_tuple()

Tuple * PredicatePhysicalOperator::current_tuple ( )

overridevirtual

实现了 PhysicalOperator.

next()

RC PredicatePhysicalOperator::next ( )

overridevirtual

实现了 PhysicalOperator.

open()

RC PredicatePhysicalOperator::open ( Trx *  trx )

overridevirtual

实现了 PhysicalOperator.

type()

PhysicalOperatorType PredicatePhysicalOperator::type ( ) const

inlineoverridevirtual

实现了 PhysicalOperator.

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该类的文档由以下文件生成:

• src/observer/sql/operator/predicate_physical_operator.h
• src/observer/sql/operator/predicate_physical_operator.cpp