JoinHypergraph::Node Class Reference

#include <make_join_hypergraph.h>

Public Member Functions
	Node (MEM_ROOT *mem_root, TABLE *table)
TABLE *	table () const
void	AddSargable (const SargablePredicate &predicate)
const Mem_root_array< SargablePredicate > &	sargable_predicates () const
void	AddPushable (Item *cond, const RelationalExpression *from)
	Add a join condition that is potentially pushable as a sargable predicate for this node. More...
const Mem_root_array< PushableJoinCondition > &	pushable_conditions () const
hypergraph::NodeMap	lateral_dependencies () const
void	set_lateral_dependencies (hypergraph::NodeMap dependencies)

Public Attributes
std::optional< double >	cardinality

Private Attributes
TABLE *	m_table
Mem_root_array< SargablePredicate >	m_sargable_predicates
Mem_root_array< PushableJoinCondition >	m_pushable_conditions
hypergraph::NodeMap	m_lateral_dependencies {0}

Constructor & Destructor Documentation

Node()

JoinHypergraph::Node::Node ( MEM_ROOT *  mem_root, TABLE *  table  )

inline

Member Function Documentation

AddPushable()

void JoinHypergraph::Node::AddPushable ( Item *  cond, const RelationalExpression *  from  )

inline

Add a join condition that is potentially pushable as a sargable predicate for this node.

Parameters

cond	The condition to be considered for pushdown.
from	The relational expression from which this condition originates.

AddSargable()

void JoinHypergraph::Node::AddSargable ( const SargablePredicate &  predicate )

inline

lateral_dependencies()

hypergraph::NodeMap JoinHypergraph::Node::lateral_dependencies ( ) const

inline

pushable_conditions()

const Mem_root_array< PushableJoinCondition > & JoinHypergraph::Node::pushable_conditions ( ) const

inline

sargable_predicates()

const Mem_root_array< SargablePredicate > & JoinHypergraph::Node::sargable_predicates ( ) const

inline

set_lateral_dependencies()

void JoinHypergraph::Node::set_lateral_dependencies ( hypergraph::NodeMap  dependencies )

inline

table()

TABLE * JoinHypergraph::Node::table ( ) const

inline

Member Data Documentation

cardinality

std::optional<double> JoinHypergraph::Node::cardinality

m_lateral_dependencies

hypergraph::NodeMap JoinHypergraph::Node::m_lateral_dependencies {0}

private

m_pushable_conditions

Mem_root_array<PushableJoinCondition> JoinHypergraph::Node::m_pushable_conditions

private

m_sargable_predicates

Mem_root_array<SargablePredicate> JoinHypergraph::Node::m_sargable_predicates

private

m_table

TABLE* JoinHypergraph::Node::m_table

private

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The documentation for this class was generated from the following file:

• sql/join_optimizer/make_join_hypergraph.h