RexLiteral Class Reference

#include <RelAlgDag.h>

Inheritance diagram for RexLiteral:

Collaboration diagram for RexLiteral:

Public Member Functions
	RexLiteral ()
	RexLiteral (const int64_t val, const SQLTypes type, const SQLTypes target_type, const unsigned scale, const unsigned precision, const unsigned target_scale, const unsigned target_precision)
	RexLiteral (const double val, const SQLTypes type, const SQLTypes target_type, const unsigned scale, const unsigned precision, const unsigned target_scale, const unsigned target_precision)
	RexLiteral (const std::string &val, const SQLTypes type, const SQLTypes target_type, const unsigned scale, const unsigned precision, const unsigned target_scale, const unsigned target_precision)
	RexLiteral (const bool val, const SQLTypes type, const SQLTypes target_type, const unsigned scale, const unsigned precision, const unsigned target_scale, const unsigned target_precision)
	RexLiteral (const SQLTypes target_type)
template<class T >
T	getVal () const
SQLTypes	getType () const
SQLTypes	getTargetType () const
unsigned	getScale () const
unsigned	getPrecision () const
unsigned	getTargetScale () const
unsigned	getTargetPrecision () const
std::string	toString (RelRexToStringConfig config=RelRexToStringConfig::defaults()) const override
size_t	toHash () const override
std::unique_ptr< RexLiteral >	deepCopy () const
Public Member Functions inherited from Rex
virtual	~Rex ()

Private Attributes
boost::variant< boost::blank, int64_t, double, std::string, bool >	literal_
SQLTypes	type_
SQLTypes	target_type_
unsigned	scale_
unsigned	precision_
unsigned	target_scale_
unsigned	target_precision_

Friends
struct	RelAlgDagSerializer

Additional Inherited Members
Protected Attributes inherited from Rex
std::optional< size_t >	hash_

Detailed Description

Definition at line 100 of file RelAlgDag.h.

Constructor & Destructor Documentation

RexLiteral::RexLiteral ( )

inline

Definition at line 103 of file RelAlgDag.h.

Referenced by toHash().

      : literal_(), scale_{0}, precision_{0}, target_scale_{0}, target_precision_{0} {}

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RexLiteral::RexLiteral ( const int64_t  val, const SQLTypes  type, const SQLTypes  target_type, const unsigned  scale, const unsigned  precision, const unsigned  target_scale, const unsigned  target_precision  )

inline

Definition at line 106 of file RelAlgDag.h.

References CHECK, is_datetime(), kBIGINT, kDECIMAL, kINT, kINTERVAL_DAY_TIME, and kINTERVAL_YEAR_MONTH.

      : literal_(val)
      , type_(type)
      , target_type_(target_type)
      , scale_(scale)
      , precision_(precision)
      , target_scale_(target_scale)
      , target_precision_(target_precision) {
    CHECK(type == kDECIMAL || type == kINTERVAL_DAY_TIME ||
          type == kINTERVAL_YEAR_MONTH || is_datetime(type) || type == kBIGINT ||
          type == kINT);
  }

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RexLiteral::RexLiteral ( const double  val, const SQLTypes  type, const SQLTypes  target_type, const unsigned  scale, const unsigned  precision, const unsigned  target_scale, const unsigned  target_precision  )

inline

Definition at line 125 of file RelAlgDag.h.

References CHECK_EQ, and kDOUBLE.

      : literal_(val)
      , type_(type)
      , target_type_(target_type)
      , scale_(scale)
      , precision_(precision)
      , target_scale_(target_scale)
      , target_precision_(target_precision) {
    CHECK_EQ(kDOUBLE, type);
  }

RexLiteral::RexLiteral ( const std::string &  val, const SQLTypes  type, const SQLTypes  target_type, const unsigned  scale, const unsigned  precision, const unsigned  target_scale, const unsigned  target_precision  )

inline

Definition at line 142 of file RelAlgDag.h.

References CHECK_EQ, and kTEXT.

      : literal_(val)
      , type_(type)
      , target_type_(target_type)
      , scale_(scale)
      , precision_(precision)
      , target_scale_(target_scale)
      , target_precision_(target_precision) {
    CHECK_EQ(kTEXT, type);
  }

RexLiteral::RexLiteral ( const bool  val, const SQLTypes  type, const SQLTypes  target_type, const unsigned  scale, const unsigned  precision, const unsigned  target_scale, const unsigned  target_precision  )

inline

Definition at line 159 of file RelAlgDag.h.

References CHECK_EQ, and kBOOLEAN.

      : literal_(val)
      , type_(type)
      , target_type_(target_type)
      , scale_(scale)
      , precision_(precision)
      , target_scale_(target_scale)
      , target_precision_(target_precision) {
    CHECK_EQ(kBOOLEAN, type);
  }

RexLiteral::RexLiteral ( const SQLTypes  target_type )

inline

Definition at line 176 of file RelAlgDag.h.

      : literal_()
      , type_(kNULLT)
      , target_type_(target_type)
      , scale_(0)
      , precision_(0)
      , target_scale_(0)
      , target_precision_(0) {}

Member Function Documentation

std::unique_ptr<RexLiteral> RexLiteral::deepCopy ( ) const

inline

Definition at line 236 of file RelAlgDag.h.

                                             {
    return std::make_unique<RexLiteral>(*this);
  }

unsigned RexLiteral::getPrecision ( ) const

inline

Definition at line 198 of file RelAlgDag.h.

References precision_.

{ return precision_; }

unsigned RexLiteral::getScale ( ) const

inline

Definition at line 196 of file RelAlgDag.h.

References scale_.

{ return scale_; }

unsigned RexLiteral::getTargetPrecision ( ) const

inline

Definition at line 202 of file RelAlgDag.h.

References target_precision_.

{ return target_precision_; }

unsigned RexLiteral::getTargetScale ( ) const

inline

Definition at line 200 of file RelAlgDag.h.

References target_scale_.

{ return target_scale_; }

SQLTypes RexLiteral::getTargetType ( ) const

inline

Definition at line 194 of file RelAlgDag.h.

References target_type_.

{ return target_type_; }

SQLTypes RexLiteral::getType ( ) const

inline

Definition at line 192 of file RelAlgDag.h.

References type_.

{ return type_; }

template<class T >

T RexLiteral::getVal ( ) const

inline

Definition at line 186 of file RelAlgDag.h.

References CHECK, and literal_.

                   {
    const auto ptr = boost::get<T>(&literal_);
    CHECK(ptr);
    return *ptr;
  }

size_t RexLiteral::toHash ( ) const

inlineoverridevirtual

Implements Rex.

Definition at line 213 of file RelAlgDag.h.

References Rex::hash_, literal_, precision_, RexLiteral(), scale_, heavydb.dtypes::T, target_precision_, target_scale_, target_type_, and type_.

                                 {
    if (!hash_) {
      hash_ = typeid(RexLiteral).hash_code();
      boost::apply_visitor(
          [this](auto&& current_val) {
            using T = std::decay_t<decltype(current_val)>;
            if constexpr (!std::is_same_v<boost::blank, T>) {
              static_assert(std::is_same_v<int64_t, T> || std::is_same_v<double, T> ||
                            std::is_same_v<std::string, T> || std::is_same_v<bool, T>);
              boost::hash_combine(*hash_, current_val);
            }
          },
          literal_);
      boost::hash_combine(*hash_, type_);
      boost::hash_combine(*hash_, target_type_);
      boost::hash_combine(*hash_, scale_);
      boost::hash_combine(*hash_, precision_);
      boost::hash_combine(*hash_, target_scale_);
      boost::hash_combine(*hash_, target_precision_);
    }
    return *hash_;
  }

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

inlineoverridevirtual

Implements Rex.

Definition at line 204 of file RelAlgDag.h.

References literal_, precision_, scale_, target_precision_, target_scale_, target_type_, and type_.

                                                                                   {
    std::ostringstream oss;
    oss << "RexLiteral(" << literal_ << " type=" << type_ << '(' << precision_ << ','
        << scale_ << ") target_type=" << target_type_ << '(' << target_precision_ << ','
        << target_scale_ << "))";
    return oss.str();
  }

Friends And Related Function Documentation

friend struct RelAlgDagSerializer

friend

Definition at line 249 of file RelAlgDag.h.

Member Data Documentation

boost::variant<boost::blank, int64_t, double, std::string, bool> RexLiteral::literal_

private

Definition at line 241 of file RelAlgDag.h.

Referenced by getVal(), toHash(), and toString().

unsigned RexLiteral::precision_

private

Definition at line 245 of file RelAlgDag.h.

Referenced by getPrecision(), toHash(), and toString().

unsigned RexLiteral::scale_

private

Definition at line 244 of file RelAlgDag.h.

Referenced by getScale(), toHash(), and toString().

unsigned RexLiteral::target_precision_

private

Definition at line 247 of file RelAlgDag.h.

Referenced by getTargetPrecision(), toHash(), and toString().

unsigned RexLiteral::target_scale_

private

Definition at line 246 of file RelAlgDag.h.

Referenced by getTargetScale(), toHash(), and toString().

SQLTypes RexLiteral::target_type_

private

Definition at line 243 of file RelAlgDag.h.

Referenced by getTargetType(), toHash(), and toString().

SQLTypes RexLiteral::type_

private

Definition at line 242 of file RelAlgDag.h.

Referenced by getType(), toHash(), and toString().

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

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