Result_set_capacity Class Reference

This class is used to limit the bytes collected in Result_set. More...

#include <protocol_local_v2.h>

Public Member Functions
void	add_bytes (uint64_t amend)
bool	has_capacity ()
void	reset ()
void	set_capacity (uint64_t cap)
uint64_t	get_capacity ()

Private Attributes
uint64_t	m_configured_capacity {MAX_CAPACITY}
uint64_t	m_current_capacity {0}

Static Private Attributes
static constexpr auto	MAX_CAPACITY {500}

Detailed Description

This class is used to limit the bytes collected in Result_set.

this is required to avoid exhausting MEM_ROOT, when fetch large set of rows.

Member Function Documentation

add_bytes()

void Result_set_capacity::add_bytes ( uint64_t  amend )

inline

get_capacity()

uint64_t Result_set_capacity::get_capacity ( )

inline

has_capacity()

bool Result_set_capacity::has_capacity ( )

inline

reset()

void Result_set_capacity::reset ( void  )

inline

set_capacity()

void Result_set_capacity::set_capacity ( uint64_t  cap )

inline

Member Data Documentation

m_configured_capacity

uint64_t Result_set_capacity::m_configured_capacity {MAX_CAPACITY}

private

m_current_capacity

uint64_t Result_set_capacity::m_current_capacity {0}

private

MAX_CAPACITY

constexpr auto Result_set_capacity::MAX_CAPACITY {500}

staticconstexprprivate

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

• sql/statement/protocol_local_v2.h