Class RelProject¶

class RelProject : public RelAlgNode, public ModifyManipulationTarget ¶

Public Types

using ConstRexScalarPtr = std::unique_ptr<const RexScalar>¶

using ConstRexScalarPtrVector = std::vector<ConstRexScalarPtr>¶

Public Functions

RelProject(std::vector<std::unique_ptr<const RexScalar>> &scalar_exprs, const std::vector<std::string> &fields, std::shared_ptr<const RelAlgNode> input)¶

RelProject(RelProject const &rhs)¶

void setExpressions(std::vector<std::unique_ptr<const RexScalar>> &exprs) const¶

bool isSimple() const¶

bool isIdentity() const¶

bool isRenaming() const¶

size_t size() const¶

const RexScalar *getProjectAt(const size_t idx) const¶

const RexScalar *getProjectAtAndRelease(const size_t idx) const¶

std::vector<std::unique_ptr<const RexScalar>> getExpressionsAndRelease()¶

const std::vector<std::string> &getFields() const¶

void setFields(std::vector<std::string> &&fields)¶

const std::string getFieldName(const size_t i) const¶

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

void replaceInput(std::shared_ptr<const RelAlgNode> old_input, std::shared_ptr<const RelAlgNode> input, std::optional<std::unordered_map<unsigned, unsigned>> old_to_new_index_map)¶

void appendInput(std::string new_field_name, std::unique_ptr<const RexScalar> new_input)¶

std::string toString() const¶

size_t toHash() const¶

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

bool hasWindowFunctionExpr() const¶

void addHint(const ExplainedQueryHint &hint_explained)¶

const bool hasHintEnabled(QueryHint candidate_hint) const¶

const ExplainedQueryHint &getHintInfo(QueryHint hint) const¶

bool hasDeliveredHint()¶

Hints *getDeliveredHints()¶

Private Functions

template<typename EXPR_VISITOR_FUNCTOR> void visitScalarExprs(EXPR_VISITOR_FUNCTOR visitor_functor) const¶

void injectOffsetInFragmentExpr() const¶

Private Members

std::vector<std::unique_ptr<const RexScalar>> scalar_exprs_¶

std::vector<std::string> fields_¶

bool hint_applied_¶

std::unique_ptr<Hints> hints_¶

Friends

friend RelProject::RelModify