secondary_engine_costing_flags.h File Reference

For updating an AccessPath's costs by a secondary engine, i.e. More...

#include <cstdint>

Go to the source code of this file.

Typedefs
using	SecondaryEngineCostingFlags = uint64_t

Enumerations
enum class	SecondaryEngineCostingFlag : SecondaryEngineCostingFlags {   HAS_MULTIPLE_BASE_TABLES , CONTAINS_AGGREGATION_ACCESSPATH , CONTAINS_HAVING_ACCESSPATH , CONTAINS_WINDOW_ACCESSPATH ,   CONTAINS_QUALIFY_ACCESSPATH , HANDLING_DISTINCT_ORDERBY_LIMITOFFSET }

Functions
constexpr SecondaryEngineCostingFlags	MakeSecondaryEngineCostingFlags ()
	Creates an empty bitmap of costing flags. More...
template<typename... Args>
constexpr SecondaryEngineCostingFlags	MakeSecondaryEngineCostingFlags (const SecondaryEngineCostingFlag &flag1, const Args &... rest)
	Creates a bitmap representing a set of costing flags. More...
constexpr SecondaryEngineCostingFlags	operator| (const SecondaryEngineCostingFlags &a, const SecondaryEngineCostingFlag &b)
constexpr SecondaryEngineCostingFlags	operator| (const SecondaryEngineCostingFlag &a, const SecondaryEngineCostingFlags &b)
constexpr SecondaryEngineCostingFlags &	operator|= (SecondaryEngineCostingFlags &a, const SecondaryEngineCostingFlag &b)
constexpr SecondaryEngineCostingFlags	operator& (const SecondaryEngineCostingFlags &a, const SecondaryEngineCostingFlag &b)
constexpr SecondaryEngineCostingFlags	operator& (const SecondaryEngineCostingFlag &a, const SecondaryEngineCostingFlags &b)
constexpr SecondaryEngineCostingFlags &	operator&= (SecondaryEngineCostingFlags &a, const SecondaryEngineCostingFlag &b)
constexpr SecondaryEngineCostingFlags	operator~ (const SecondaryEngineCostingFlag &flag)

Detailed Description

For updating an AccessPath's costs by a secondary engine, i.e.

costing a partial plan, the secondary engine may need to know ahead of time certain information about the current planning, for which we provide some flags here.

Typedef Documentation

SecondaryEngineCostingFlags

using SecondaryEngineCostingFlags = uint64_t

Enumeration Type Documentation

SecondaryEngineCostingFlag

enum class SecondaryEngineCostingFlag : SecondaryEngineCostingFlags

strong

Enumerator
HAS_MULTIPLE_BASE_TABLES
CONTAINS_AGGREGATION_ACCESSPATH
CONTAINS_HAVING_ACCESSPATH
CONTAINS_WINDOW_ACCESSPATH
CONTAINS_QUALIFY_ACCESSPATH
HANDLING_DISTINCT_ORDERBY_LIMITOFFSET

Function Documentation

MakeSecondaryEngineCostingFlags() [1/2]

constexpr SecondaryEngineCostingFlags MakeSecondaryEngineCostingFlags ( )

inlineconstexpr

Creates an empty bitmap of costing flags.

This is the base case for the function template with the same name below.

MakeSecondaryEngineCostingFlags() [2/2]

template<typename... Args>

constexpr SecondaryEngineCostingFlags MakeSecondaryEngineCostingFlags ( const SecondaryEngineCostingFlag &  flag1, const Args &...  rest  )

inlineconstexpr

Creates a bitmap representing a set of costing flags.

operator&() [1/2]

constexpr SecondaryEngineCostingFlags operator& ( const SecondaryEngineCostingFlag &  a, const SecondaryEngineCostingFlags &  b  )

inlineconstexpr

operator&() [2/2]

constexpr SecondaryEngineCostingFlags operator& ( const SecondaryEngineCostingFlags &  a, const SecondaryEngineCostingFlag &  b  )

inlineconstexpr

operator&=()

constexpr SecondaryEngineCostingFlags & operator&= ( SecondaryEngineCostingFlags &  a, const SecondaryEngineCostingFlag &  b  )

inlineconstexpr

operator|() [1/2]

constexpr SecondaryEngineCostingFlags operator| ( const SecondaryEngineCostingFlag &  a, const SecondaryEngineCostingFlags &  b  )

inlineconstexpr

operator|() [2/2]

constexpr SecondaryEngineCostingFlags operator| ( const SecondaryEngineCostingFlags &  a, const SecondaryEngineCostingFlag &  b  )

inlineconstexpr

operator|=()

constexpr SecondaryEngineCostingFlags & operator|= ( SecondaryEngineCostingFlags &  a, const SecondaryEngineCostingFlag &  b  )

inlineconstexpr

operator~()

constexpr SecondaryEngineCostingFlags operator~ ( const SecondaryEngineCostingFlag &  flag )

inlineconstexpr