Analyzer::ExtractExpr Class Reference

#include <Analyzer.h>

Inheritance diagram for Analyzer::ExtractExpr:

Collaboration diagram for Analyzer::ExtractExpr:

Public Member Functions
	ExtractExpr (const SQLTypeInfo &ti, bool has_agg, ExtractField f, std::shared_ptr< Analyzer::Expr > e)
ExtractField	get_field () const
const Expr *	get_from_expr () const
const std::shared_ptr < Analyzer::Expr >	get_own_from_expr () const
std::shared_ptr< Analyzer::Expr >	deep_copy () const override
void	check_group_by (const std::list< std::shared_ptr< Analyzer::Expr >> &groupby) const override
void	group_predicates (std::list< const Expr * > &scan_predicates, std::list< const Expr * > &join_predicates, std::list< const Expr * > &const_predicates) const override
void	collect_rte_idx (std::set< int > &rte_idx_set) const override
void	collect_column_var (std::set< const ColumnVar *, bool(*)(const ColumnVar *, const ColumnVar *)> &colvar_set, bool include_agg) const override
std::shared_ptr< Analyzer::Expr >	rewrite_with_targetlist (const std::vector< std::shared_ptr< TargetEntry >> &tlist) const override
std::shared_ptr< Analyzer::Expr >	rewrite_with_child_targetlist (const std::vector< std::shared_ptr< TargetEntry >> &tlist) const override
std::shared_ptr< Analyzer::Expr >	rewrite_agg_to_var (const std::vector< std::shared_ptr< TargetEntry >> &tlist) const override
bool	operator== (const Expr &rhs) const override
std::string	toString () const override
void	find_expr (bool(*f)(const Expr *), std::list< const Expr * > &expr_list) const override
Public Member Functions inherited from Analyzer::Expr
	Expr (SQLTypes t, bool notnull)
	Expr (SQLTypes t, int d, bool notnull)
	Expr (SQLTypes t, int d, int s, bool notnull)
	Expr (const SQLTypeInfo &ti, bool has_agg=false)
virtual	~Expr ()
std::shared_ptr< Analyzer::Expr >	get_shared_ptr ()
const SQLTypeInfo &	get_type_info () const
void	set_type_info (const SQLTypeInfo &ti)
bool	get_contains_agg () const
void	set_contains_agg (bool a)
virtual std::shared_ptr < Analyzer::Expr >	add_cast (const SQLTypeInfo &new_type_info)
virtual std::shared_ptr < Analyzer::Expr >	normalize_simple_predicate (int &rte_idx) const
virtual void	print () const
virtual void	add_unique (std::list< const Expr * > &expr_list) const
std::shared_ptr< Analyzer::Expr >	decompress ()
virtual void	get_domain (DomainSet &domain_set) const

Private Attributes
ExtractField	field_
std::shared_ptr< Analyzer::Expr >	from_expr_

Additional Inherited Members
Protected Attributes inherited from Analyzer::Expr
SQLTypeInfo	type_info
bool	contains_agg

Detailed Description

Definition at line 1189 of file Analyzer.h.

Constructor & Destructor Documentation

Analyzer::ExtractExpr::ExtractExpr ( const SQLTypeInfo &  ti, bool  has_agg, ExtractField  f, std::shared_ptr< Analyzer::Expr >  e  )

inline

Definition at line 1191 of file Analyzer.h.

      : Expr(ti, has_agg), field_(f), from_expr_(e) {}

Member Function Documentation

void ExtractExpr::check_group_by ( const std::list< std::shared_ptr< Analyzer::Expr >> &  groupby ) const

overridevirtual

Reimplemented from Analyzer::Expr.

Definition at line 3090 of file Analyzer.cpp.

References from_expr_.

                                                               {
  from_expr_->check_group_by(groupby);
}

void ExtractExpr::collect_column_var ( std::set< const ColumnVar *, bool(*)(const ColumnVar *, const ColumnVar *)> &  colvar_set, bool  include_agg  ) const

overridevirtual

Reimplemented from Analyzer::Expr.

Definition at line 3044 of file Analyzer.cpp.

References from_expr_.

                            {
  from_expr_->collect_column_var(colvar_set, include_agg);
}

void ExtractExpr::collect_rte_idx ( std::set< int > &  rte_idx_set ) const

overridevirtual

Reimplemented from Analyzer::Expr.

Definition at line 3007 of file Analyzer.cpp.

References from_expr_.

                                                                {
  from_expr_->collect_rte_idx(rte_idx_set);
}

std::shared_ptr< Analyzer::Expr > ExtractExpr::deep_copy ( ) const

overridevirtual

Implements Analyzer::Expr.

Definition at line 177 of file Analyzer.cpp.

References Analyzer::Expr::contains_agg, field_, from_expr_, and Analyzer::Expr::type_info.

                                                         {
  return makeExpr<ExtractExpr>(type_info, contains_agg, field_, from_expr_->deep_copy());
}

void ExtractExpr::find_expr ( bool(*)(const Expr *)  f, std::list< const Expr * > &  expr_list  ) const

overridevirtual

Reimplemented from Analyzer::Expr.

Definition at line 2959 of file Analyzer.cpp.

References Analyzer::Expr::add_unique(), f, and from_expr_.

                                                                   {
  if (f(this)) {
    add_unique(expr_list);
    return;
  }
  from_expr_->find_expr(f, expr_list);
}

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ExtractField Analyzer::ExtractExpr::get_field ( ) const

inline

Definition at line 1196 of file Analyzer.h.

References field_.

Referenced by CodeGenerator::codegen(), getExpressionRange(), operator==(), and DeepCopyVisitor::visitExtractExpr().

{ return field_; }

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const Expr* Analyzer::ExtractExpr::get_from_expr ( ) const

inline

Definition at line 1197 of file Analyzer.h.

References from_expr_.

Referenced by CodeGenerator::codegen(), getExpressionRange(), operator==(), DeepCopyVisitor::visitExtractExpr(), and ScalarExprVisitor< std::unordered_set< InputColDescriptor > >::visitExtractExpr().

{ return from_expr_.get(); }

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const std::shared_ptr<Analyzer::Expr> Analyzer::ExtractExpr::get_own_from_expr ( ) const

inline

Definition at line 1198 of file Analyzer.h.

References from_expr_.

{ return from_expr_; }

void ExtractExpr::group_predicates ( std::list< const Expr * > &  scan_predicates, std::list< const Expr * > &  join_predicates, std::list< const Expr * > &  const_predicates  ) const

overridevirtual

Reimplemented from Analyzer::Expr.

Definition at line 1698 of file Analyzer.cpp.

References from_expr_.

                                                                                 {
  std::set<int> rte_idx_set;
  from_expr_->collect_rte_idx(rte_idx_set);
  if (rte_idx_set.size() > 1) {
    join_predicates.push_back(this);
  } else if (rte_idx_set.size() == 1) {
    scan_predicates.push_back(this);
  } else {
    const_predicates.push_back(this);
  }
}

bool ExtractExpr::operator== ( const Expr &  rhs ) const

overridevirtual

Implements Analyzer::Expr.

Definition at line 2300 of file Analyzer.cpp.

References field_, from_expr_, get_field(), and get_from_expr().

                                                  {
  if (typeid(rhs) != typeid(ExtractExpr)) {
    return false;
  }
  const ExtractExpr& rhs_ee = dynamic_cast<const ExtractExpr&>(rhs);
  return field_ == rhs_ee.get_field() && *from_expr_ == *rhs_ee.get_from_expr();
}

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std::shared_ptr< Analyzer::Expr > ExtractExpr::rewrite_agg_to_var ( const std::vector< std::shared_ptr< TargetEntry >> &  tlist ) const

overridevirtual

Reimplemented from Analyzer::Expr.

Definition at line 2002 of file Analyzer.cpp.

References Analyzer::Expr::contains_agg, field_, from_expr_, and Analyzer::Expr::type_info.

                                                              {
  return makeExpr<ExtractExpr>(
      type_info, contains_agg, field_, from_expr_->rewrite_agg_to_var(tlist));
}

std::shared_ptr< Analyzer::Expr > ExtractExpr::rewrite_with_child_targetlist ( const std::vector< std::shared_ptr< TargetEntry >> &  tlist ) const

overridevirtual

Reimplemented from Analyzer::Expr.

Definition at line 1960 of file Analyzer.cpp.

References Analyzer::Expr::contains_agg, field_, from_expr_, and Analyzer::Expr::type_info.

                                                              {
  return makeExpr<ExtractExpr>(
      type_info, contains_agg, field_, from_expr_->rewrite_with_child_targetlist(tlist));
}

std::shared_ptr< Analyzer::Expr > ExtractExpr::rewrite_with_targetlist ( const std::vector< std::shared_ptr< TargetEntry >> &  tlist ) const

overridevirtual

Reimplemented from Analyzer::Expr.

Definition at line 1917 of file Analyzer.cpp.

References Analyzer::Expr::contains_agg, field_, from_expr_, and Analyzer::Expr::type_info.

                                                              {
  return makeExpr<ExtractExpr>(
      type_info, contains_agg, field_, from_expr_->rewrite_with_targetlist(tlist));
}

std::string ExtractExpr::toString ( ) const

overridevirtual

Implements Analyzer::Expr.

Definition at line 2695 of file Analyzer.cpp.

References field_, from_expr_, and to_string().

                                      {
  return "EXTRACT(" + std::to_string(field_) + " FROM " + from_expr_->toString() + ") ";
}

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Member Data Documentation

ExtractField Analyzer::ExtractExpr::field_

private

Definition at line 1222 of file Analyzer.h.

Referenced by deep_copy(), get_field(), operator==(), rewrite_agg_to_var(), rewrite_with_child_targetlist(), rewrite_with_targetlist(), and toString().

std::shared_ptr<Analyzer::Expr> Analyzer::ExtractExpr::from_expr_

private

Definition at line 1223 of file Analyzer.h.

Referenced by check_group_by(), collect_column_var(), collect_rte_idx(), deep_copy(), find_expr(), get_from_expr(), get_own_from_expr(), group_predicates(), operator==(), rewrite_agg_to_var(), rewrite_with_child_targetlist(), rewrite_with_targetlist(), and toString().

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

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