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Analyzer::LowerExpr Class Reference

Expression class for the LOWER (lowercase) string function. The "arg" constructor parameter must be an expression that resolves to a string datatype (e.g. TEXT). More...

#include <Analyzer.h>

+ Inheritance diagram for Analyzer::LowerExpr:
+ Collaboration diagram for Analyzer::LowerExpr:

Public Member Functions

 LowerExpr (std::shared_ptr< Analyzer::Expr > arg)
 
const Exprget_arg () const
 
const std::shared_ptr
< Analyzer::Expr
get_own_arg () const
 
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::Exprrewrite_with_targetlist (const std::vector< std::shared_ptr< TargetEntry >> &tlist) const override
 
std::shared_ptr< Analyzer::Exprrewrite_with_child_targetlist (const std::vector< std::shared_ptr< TargetEntry >> &tlist) const override
 
std::shared_ptr< Analyzer::Exprrewrite_agg_to_var (const std::vector< std::shared_ptr< TargetEntry >> &tlist) const override
 
std::shared_ptr< Analyzer::Exprdeep_copy () 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
 
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::Exprget_shared_ptr ()
 
const SQLTypeInfoget_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 void check_group_by (const std::list< std::shared_ptr< Analyzer::Expr >> &groupby) const
 
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::Exprdecompress ()
 
virtual void get_domain (DomainSet &domain_set) const
 

Private Attributes

std::shared_ptr< Analyzer::Exprarg
 

Additional Inherited Members

- Protected Attributes inherited from Analyzer::Expr
SQLTypeInfo type_info
 
bool contains_agg
 

Detailed Description

Expression class for the LOWER (lowercase) string function. The "arg" constructor parameter must be an expression that resolves to a string datatype (e.g. TEXT).

Definition at line 740 of file Analyzer.h.

Constructor & Destructor Documentation

Analyzer::LowerExpr::LowerExpr ( std::shared_ptr< Analyzer::Expr arg)
inline

Definition at line 742 of file Analyzer.h.

742 : Expr(arg->get_type_info()), arg(arg) {}
Expr(SQLTypes t, bool notnull)
Definition: Analyzer.h:69
std::shared_ptr< Analyzer::Expr > arg
Definition: Analyzer.h:788

Member Function Documentation

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

Reimplemented from Analyzer::Expr.

Definition at line 752 of file Analyzer.h.

References arg.

755  {
756  arg->collect_column_var(colvar_set, include_agg);
757  }
std::shared_ptr< Analyzer::Expr > arg
Definition: Analyzer.h:788
void Analyzer::LowerExpr::collect_rte_idx ( std::set< int > &  rte_idx_set) const
inlineoverridevirtual

Reimplemented from Analyzer::Expr.

Definition at line 748 of file Analyzer.h.

References arg.

748  {
749  arg->collect_rte_idx(rte_idx_set);
750  }
std::shared_ptr< Analyzer::Expr > arg
Definition: Analyzer.h:788
std::shared_ptr< Analyzer::Expr > Analyzer::LowerExpr::deep_copy ( ) const
overridevirtual

Implements Analyzer::Expr.

Definition at line 130 of file Analyzer.cpp.

References arg.

130  {
131  return makeExpr<LowerExpr>(arg->deep_copy());
132 }
std::shared_ptr< Analyzer::Expr > arg
Definition: Analyzer.h:788
void Analyzer::LowerExpr::find_expr ( bool(*)(const Expr *)  f,
std::list< const Expr * > &  expr_list 
) const
overridevirtual

Reimplemented from Analyzer::Expr.

Definition at line 2696 of file Analyzer.cpp.

References Analyzer::Expr::add_unique(), and arg.

2697  {
2698  if (f(this)) {
2699  add_unique(expr_list);
2700  } else {
2701  arg->find_expr(f, expr_list);
2702  }
2703 }
virtual void add_unique(std::list< const Expr * > &expr_list) const
Definition: Analyzer.cpp:2639
std::shared_ptr< Analyzer::Expr > arg
Definition: Analyzer.h:788

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const Expr* Analyzer::LowerExpr::get_arg ( ) const
inline

Definition at line 744 of file Analyzer.h.

References arg.

Referenced by CodeGenerator::codegen(), operator==(), DeepCopyVisitor::visitLower(), ScalarExprVisitor< std::unordered_set< InputColDescriptor > >::visitLower(), and anonymous_namespace{ExpressionRewrite.cpp}::ConstantFoldingVisitor::visitLower().

744 { return arg.get(); }
std::shared_ptr< Analyzer::Expr > arg
Definition: Analyzer.h:788

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const std::shared_ptr<Analyzer::Expr> Analyzer::LowerExpr::get_own_arg ( ) const
inline

Definition at line 746 of file Analyzer.h.

References arg.

Referenced by anonymous_namespace{ExpressionRewrite.cpp}::ConstantFoldingVisitor::visitLower().

746 { return arg; }
std::shared_ptr< Analyzer::Expr > arg
Definition: Analyzer.h:788

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void Analyzer::LowerExpr::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 1507 of file Analyzer.cpp.

References arg.

1509  {
1510  std::set<int> rte_idx_set;
1511  arg->collect_rte_idx(rte_idx_set);
1512  if (rte_idx_set.size() > 1) {
1513  join_predicates.push_back(this);
1514  } else if (rte_idx_set.size() == 1) {
1515  scan_predicates.push_back(this);
1516  } else {
1517  const_predicates.push_back(this);
1518  }
1519 }
std::shared_ptr< Analyzer::Expr > arg
Definition: Analyzer.h:788
bool Analyzer::LowerExpr::operator== ( const Expr rhs) const
overridevirtual

Implements Analyzer::Expr.

Definition at line 2071 of file Analyzer.cpp.

References arg, and get_arg().

2071  {
2072  if (typeid(rhs) != typeid(LowerExpr)) {
2073  return false;
2074  }
2075 
2076  return *arg == *dynamic_cast<const LowerExpr&>(rhs).get_arg();
2077 }
std::shared_ptr< Analyzer::Expr > arg
Definition: Analyzer.h:788
const Expr * get_arg() const
Definition: Analyzer.h:744
LowerExpr(std::shared_ptr< Analyzer::Expr > arg)
Definition: Analyzer.h:742

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

Reimplemented from Analyzer::Expr.

Definition at line 769 of file Analyzer.h.

References arg.

770  {
771  return makeExpr<LowerExpr>(arg->rewrite_agg_to_var(tlist));
772  }
std::shared_ptr< Analyzer::Expr > arg
Definition: Analyzer.h:788
std::shared_ptr<Analyzer::Expr> Analyzer::LowerExpr::rewrite_with_child_targetlist ( const std::vector< std::shared_ptr< TargetEntry >> &  tlist) const
inlineoverridevirtual

Reimplemented from Analyzer::Expr.

Definition at line 764 of file Analyzer.h.

References arg.

765  {
766  return makeExpr<LowerExpr>(arg->rewrite_with_child_targetlist(tlist));
767  }
std::shared_ptr< Analyzer::Expr > arg
Definition: Analyzer.h:788
std::shared_ptr<Analyzer::Expr> Analyzer::LowerExpr::rewrite_with_targetlist ( const std::vector< std::shared_ptr< TargetEntry >> &  tlist) const
inlineoverridevirtual

Reimplemented from Analyzer::Expr.

Definition at line 759 of file Analyzer.h.

References arg.

760  {
761  return makeExpr<LowerExpr>(arg->rewrite_with_targetlist(tlist));
762  }
std::shared_ptr< Analyzer::Expr > arg
Definition: Analyzer.h:788
std::string Analyzer::LowerExpr::toString ( ) const
overridevirtual

Implements Analyzer::Expr.

Definition at line 2470 of file Analyzer.cpp.

References arg.

2470  {
2471  return "LOWER(" + arg->toString() + ") ";
2472 }
std::shared_ptr< Analyzer::Expr > arg
Definition: Analyzer.h:788

Member Data Documentation


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