RelJoin Class Reference

#include <RelAlgDag.h>

Inheritance diagram for RelJoin:

Collaboration diagram for RelJoin:

Public Member Functions
	RelJoin ()
	RelJoin (std::shared_ptr< const RelAlgNode > lhs, std::shared_ptr< const RelAlgNode > rhs, std::unique_ptr< const RexScalar > &condition, const JoinType join_type)
	RelJoin (RelJoin const &)
JoinType	getJoinType () const
const RexScalar *	getCondition () const
const RexScalar *	getAndReleaseCondition () const
void	setCondition (std::unique_ptr< const RexScalar > &condition)
void	replaceInput (std::shared_ptr< const RelAlgNode > old_input, std::shared_ptr< const RelAlgNode > input) override
std::string	toString (RelRexToStringConfig config=RelRexToStringConfig::defaults()) const override
size_t	toHash () const override
size_t	size () const override
std::shared_ptr< RelAlgNode >	deepCopy () const override
void	addHint (const ExplainedQueryHint &hint_explained)
const bool	hasHintEnabled (QueryHint candidate_hint) const
const ExplainedQueryHint &	getHintInfo (QueryHint hint) const
bool	hasDeliveredHint ()
Hints *	getDeliveredHints ()
Public Member Functions inherited from RelAlgNode
	RelAlgNode (RelAlgInputs inputs={})
virtual	~RelAlgNode ()
void	resetQueryExecutionState ()
void	setContextData (const RaExecutionDesc *context_data) const
void	setOutputMetainfo (std::vector< TargetMetaInfo > targets_metainfo) const
void	setQueryPlanDag (const std::string &extracted_query_plan_dag) const
std::string	getQueryPlanDag () const
size_t	getQueryPlanDagHash () const
const std::vector < TargetMetaInfo > &	getOutputMetainfo () const
unsigned	getId () const
void	setIdInPlanTree (size_t id) const
std::optional< size_t >	getIdInPlanTree () const
bool	hasContextData () const
const RaExecutionDesc *	getContextData () const
const size_t	inputCount () const
const RelAlgNode *	getInput (const size_t idx) const
std::shared_ptr< const RelAlgNode >	getAndOwnInput (const size_t idx) const
void	addManagedInput (std::shared_ptr< const RelAlgNode > input)
bool	hasInput (const RelAlgNode *needle) const
void	setRelNodeDagId (const size_t id) const
size_t	getRelNodeDagId () const
bool	isNop () const
void	markAsNop ()
void	clearContextData () const

Private Attributes
std::unique_ptr< const RexScalar >	condition_
JoinType	join_type_
bool	hint_applied_
std::unique_ptr< Hints >	hints_

Friends
struct	RelAlgDagSerializer

Additional Inherited Members
Static Public Member Functions inherited from RelAlgNode
static void	resetRelAlgFirstId () noexcept
Protected Attributes inherited from RelAlgNode
RelAlgInputs	inputs_
unsigned	id_
std::optional< size_t >	id_in_plan_tree_
std::optional< size_t >	hash_

Detailed Description

Definition at line 1451 of file RelAlgDag.h.

Constructor & Destructor Documentation

RelJoin::RelJoin ( )

inline

Definition at line 1454 of file RelAlgDag.h.

Referenced by toHash().

: join_type_(JoinType::INVALID), hint_applied_(false) {}

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RelJoin::RelJoin ( std::shared_ptr< const RelAlgNode >  lhs, std::shared_ptr< const RelAlgNode >  rhs, std::unique_ptr< const RexScalar > &  condition, const JoinType  join_type  )

inline

Definition at line 1456 of file RelAlgDag.h.

References RelAlgNode::inputs_.

      : condition_(std::move(condition))
      , join_type_(join_type)
      , hint_applied_(false)
      , hints_(std::make_unique<Hints>()) {
    inputs_.push_back(lhs);
    inputs_.push_back(rhs);
  }

RelJoin::RelJoin

(

RelJoin const &

rhs

)

Definition at line 600 of file RelAlgDag.cpp.

References addHint(), condition_, hint_applied_, hints_, and RexVisitorBase< T >::visit().

    : RelAlgNode(rhs)
    , join_type_(rhs.join_type_)
    , hint_applied_(false)
    , hints_(std::make_unique<Hints>()) {
  RexDeepCopyVisitor copier;
  condition_ = copier.visit(rhs.condition_.get());
  if (rhs.hint_applied_) {
    for (auto const& kv : *rhs.hints_) {
      addHint(kv.second);
    }
  }
}

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Member Function Documentation

void RelJoin::addHint ( const ExplainedQueryHint &  hint_explained )

inline

Definition at line 1524 of file RelAlgDag.h.

References ExplainedQueryHint::getHint(), hint_applied_, and hints_.

Referenced by RelJoin().

                                                         {
    if (!hint_applied_) {
      hint_applied_ = true;
    }
    hints_->emplace(hint_explained.getHint(), hint_explained);
  }

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std::shared_ptr<RelAlgNode> RelJoin::deepCopy ( ) const

inlineoverridevirtual

Implements RelAlgNode.

Definition at line 1520 of file RelAlgDag.h.

                                                      {
    return std::make_shared<RelJoin>(*this);
  }

const RexScalar* RelJoin::getAndReleaseCondition ( ) const

inline

Definition at line 1474 of file RelAlgDag.h.

References condition_.

{ return condition_.release(); }

const RexScalar* RelJoin::getCondition ( ) const

inline

Definition at line 1472 of file RelAlgDag.h.

References condition_.

Referenced by RelRexDagVisitor::visit(), and anonymous_namespace{QueryPhysicalInputsCollector.cpp}::RelAlgPhysicalInputsVisitor::visitJoin().

{ return condition_.get(); }

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Hints* RelJoin::getDeliveredHints ( )

inline

Definition at line 1547 of file RelAlgDag.h.

References hints_.

{ return hints_.get(); }

const ExplainedQueryHint& RelJoin::getHintInfo ( QueryHint  hint ) const

inline

Definition at line 1538 of file RelAlgDag.h.

References CHECK, hasHintEnabled(), hint_applied_, and hints_.

                                                              {
    CHECK(hint_applied_);
    CHECK(!hints_->empty());
    CHECK(hasHintEnabled(hint));
    return hints_->at(hint);
  }

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JoinType RelJoin::getJoinType ( ) const

inline

Definition at line 1470 of file RelAlgDag.h.

References join_type_.

Referenced by toHash().

{ return join_type_; }

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bool RelJoin::hasDeliveredHint ( )

inline

Definition at line 1545 of file RelAlgDag.h.

References hints_.

{ return !hints_->empty(); }

const bool RelJoin::hasHintEnabled ( QueryHint  candidate_hint ) const

inline

Definition at line 1531 of file RelAlgDag.h.

References hint_applied_, and hints_.

Referenced by getHintInfo().

                                                            {
    if (hint_applied_ && !hints_->empty()) {
      return hints_->find(candidate_hint) != hints_->end();
    }
    return false;
  }

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void RelJoin::replaceInput ( std::shared_ptr< const RelAlgNode >  old_input, std::shared_ptr< const RelAlgNode >  input  )

overridevirtual

Reimplemented from RelAlgNode.

Definition at line 527 of file RelAlgDag.cpp.

References condition_, and RelAlgNode::replaceInput().

Referenced by create_left_deep_join().

                                                                  {
  RelAlgNode::replaceInput(old_input, input);
  RexRebindInputsVisitor rebind_inputs(old_input.get(), input.get());
  if (condition_) {
    rebind_inputs.visit(condition_.get());
  }
}

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void RelJoin::setCondition ( std::unique_ptr< const RexScalar > &  condition )

inline

Definition at line 1476 of file RelAlgDag.h.

References CHECK, and condition_.

                                                               {
    CHECK(condition);
    condition_ = std::move(condition);
  }

size_t RelJoin::size ( ) const

inlineoverridevirtual

Implements RelAlgNode.

Definition at line 1518 of file RelAlgDag.h.

References RelAlgNode::inputs_.

{ return inputs_[0]->size() + inputs_[1]->size(); }

size_t RelJoin::toHash ( ) const

inlineoverridevirtual

Implements RelAlgNode.

Definition at line 1506 of file RelAlgDag.h.

References condition_, getJoinType(), RelAlgNode::hash_, HASH_N, RelAlgNode::inputs_, RelJoin(), and toString().

                                 {
    if (!hash_) {
      hash_ = typeid(RelJoin).hash_code();
      boost::hash_combine(*hash_, condition_ ? condition_->toHash() : HASH_N);
      for (auto& node : inputs_) {
        boost::hash_combine(*hash_, node->toHash());
      }
      boost::hash_combine(*hash_, ::toString(getJoinType()));
    }
    return *hash_;
  }

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std::string RelJoin::toString ( RelRexToStringConfig  config = RelRexToStringConfig::defaults() ) const

inlineoverridevirtual

Implements RelAlgNode.

Definition at line 1484 of file RelAlgDag.h.

References cat(), condition_, RelAlgNode::inputs_, join_type_, to_string(), and typeName().

Referenced by toHash().

                                                                                   {
    auto ret = cat(::typeName(this), "(");
    if (!config.skip_input_nodes) {
      ret += ::toString(inputs_);
    } else {
      ret += ", input node id={";
      for (auto& input : inputs_) {
        auto node_id_in_plan = input->getIdInPlanTree();
        auto node_id_str = node_id_in_plan ? std::to_string(*node_id_in_plan)
                                           : std::to_string(input->getId());
        ret += node_id_str + " ";
      }
      ret += "}";
    }
    return cat(ret,
               ", condition=",
               (condition_ ? condition_->toString(config) : "null"),
               ", join_type=",
               ::toString(join_type_));
  }

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Friends And Related Function Documentation

friend struct RelAlgDagSerializer

friend

Definition at line 1555 of file RelAlgDag.h.

Member Data Documentation

std::unique_ptr<const RexScalar> RelJoin::condition_

mutableprivate

Definition at line 1550 of file RelAlgDag.h.

Referenced by getAndReleaseCondition(), getCondition(), RelJoin(), replaceInput(), setCondition(), toHash(), and toString().

bool RelJoin::hint_applied_

private

Definition at line 1552 of file RelAlgDag.h.

Referenced by addHint(), getHintInfo(), hasHintEnabled(), and RelJoin().

std::unique_ptr<Hints> RelJoin::hints_

private

Definition at line 1553 of file RelAlgDag.h.

Referenced by addHint(), getDeliveredHints(), getHintInfo(), hasDeliveredHint(), hasHintEnabled(), and RelJoin().

JoinType RelJoin::join_type_

private

Definition at line 1551 of file RelAlgDag.h.

Referenced by getJoinType(), and toString().

---

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

• /home/jenkins-slave/workspace/core-os-doxygen/QueryEngine/RelAlgDag.h
• /home/jenkins-slave/workspace/core-os-doxygen/QueryEngine/RelAlgDag.cpp