Table PERFORMANCE_SCHEMA.EVENTS_STATEMENTS_HISTOGRAM_BY_DIGEST. More...

#include <table_esmh_by_digest.h>

Inheritance diagram for table_esmh_by_digest:

Public Member Functions
void	reset_position () override
	Reset the cursor position to the beginning of the table. More...

int	rnd_next () override
	Fetch the next row in this cursor. More...

int	rnd_pos (const void *pos) override
	Fetch a row by position. More...

int	index_init (uint idx, bool sorted) override

int	index_next () override
	Find key in index, read record. More...

	~table_esmh_by_digest () override=default

Public Member Functions inherited from PFS_engine_table
int	read_row (TABLE table, unsigned char buf, Field **fields)
	Read a table row. More...

int	update_row (TABLE table, const unsigned char old_buf, unsigned char new_buf, Field *fields)
	Update a table row. More...

int	delete_row (TABLE table, const unsigned char buf, Field **fields)
	Delete a row from this table. More...

virtual int	rnd_init (bool scan)
	Initialize table scan. More...

virtual int	index_read (KEY key_infos, uint index, const uchar key, uint key_len, enum ha_rkey_function find_flag)
	Positions an index cursor to the index specified in the handle. More...

virtual int	index_read_last (KEY key_infos, const uchar key, uint key_len)

virtual int	index_next_same (const uchar *key, uint key_len)
	Reads the next row matching the given key value. More...

virtual int	index_prev ()

virtual int	index_first ()

virtual int	index_last ()

void	get_position (void *ref)
	Get the position of the current row. More...

void	set_position (const void *ref)
	Set the table cursor at a given position. More...

virtual	~PFS_engine_table ()=default
	Destructor. More...

Static Public Member Functions
static PFS_engine_table *	create (PFS_engine_table_share *)

static int	delete_all_rows ()

static ha_rows	get_row_count ()

Static Public Member Functions inherited from PFS_engine_table
static PFS_engine_table_share *	find_engine_table_share (const char *name)
	Find a table share by name. More...

Static Public Attributes
static PFS_engine_table_share	m_share
	Table share. More...

Protected Member Functions
int	read_row_values (TABLE table, unsigned char buf, Field **fields, bool read_all) override
	Read the current row values. More...

	table_esmh_by_digest ()

void	materialize (PFS_statements_digest_stat *stat)

int	make_row (PFS_statements_digest_stat *stat, ulong bucket_index)

Protected Member Functions inherited from PFS_engine_table
virtual int	update_row_values (TABLE table, const unsigned char old_buf, unsigned char new_buf, Field *fields)
	Update the current row values. More...

virtual int	delete_row_values (TABLE table, const unsigned char buf, Field **fields)
	Delete a row. More...

	PFS_engine_table (const PFS_engine_table_share share, void pos)
	Constructor. More...

Private Types
typedef pos_esmh_by_digest	pos_t

Private Attributes
PFS_statements_digest_stat *	m_materialized_digest
	Current row. More...

PFS_esmh_by_digest_histogram	m_materialized_histogram

row_esmh_by_digest	m_row

pos_t	m_pos
	Current position. More...

pos_t	m_next_pos
	Next position. More...

PFS_index_esmh_by_digest *	m_opened_index

Static Private Attributes
static THR_LOCK	m_table_lock
	Table share lock. More...

static Plugin_table	m_table_def
	Table definition. More...

Additional Inherited Members
Protected Attributes inherited from PFS_engine_table
const PFS_engine_table_share *	m_share_ptr
	Table share. More...

void *	m_pos_ptr
	Opaque pointer to the `m_pos` position of this cursor. More...

time_normalizer *	m_normalizer
	Current normalizer. More...

PFS_engine_index_abstract *	m_index
	Current index. More...

Detailed Description

Table PERFORMANCE_SCHEMA.EVENTS_STATEMENTS_HISTOGRAM_BY_DIGEST.

Member Typedef Documentation

◆ pos_t

typedef pos_esmh_by_digest table_esmh_by_digest::pos_t

private

Constructor & Destructor Documentation

◆ table_esmh_by_digest()

table_esmh_by_digest::table_esmh_by_digest ( )

protected

◆ ~table_esmh_by_digest()

table_esmh_by_digest::~table_esmh_by_digest ( )

overridedefault

Member Function Documentation

◆ create()

PFS_engine_table * table_esmh_by_digest::create ( PFS_engine_table_share * )

static

◆ delete_all_rows()

int table_esmh_by_digest::delete_all_rows ( void )

static

◆ get_row_count()

ha_rows table_esmh_by_digest::get_row_count ( )

static

◆ index_init()

int table_esmh_by_digest::index_init	(	uint	idx,
		bool	sorted
	)

overridevirtual

Reimplemented from PFS_engine_table.

◆ index_next()

int table_esmh_by_digest::index_next ( )

overridevirtual

Find key in index, read record.

Reimplemented from PFS_engine_table.

◆ make_row()

int table_esmh_by_digest::make_row	(	PFS_statements_digest_stat *	stat,
		ulong	bucket_index
	)

protected

◆ materialize()

void table_esmh_by_digest::materialize ( PFS_statements_digest_stat * stat )

protected

◆ read_row_values()

int table_esmh_by_digest::read_row_values	(	TABLE *	table,
		unsigned char *	buf,
		Field **	fields,
		bool	read_all
	)

overrideprotectedvirtual

Read the current row values.

Parameters

table	Table handle
buf	row buffer
fields	Table fields
read_all	true if all columns are read.

Implements PFS_engine_table.

◆ reset_position()

void table_esmh_by_digest::reset_position ( )

overridevirtual

Reset the cursor position to the beginning of the table.

Implements PFS_engine_table.

◆ rnd_next()

int table_esmh_by_digest::rnd_next ( )

overridevirtual

Fetch the next row in this cursor.

Implements PFS_engine_table.

◆ rnd_pos()

int table_esmh_by_digest::rnd_pos ( const void * pos )

overridevirtual

Fetch a row by position.

Parameters

pos	position to fetch

Implements PFS_engine_table.

Member Data Documentation

◆ m_materialized_digest

PFS_statements_digest_stat* table_esmh_by_digest::m_materialized_digest

private

Current row.

◆ m_materialized_histogram

PFS_esmh_by_digest_histogram table_esmh_by_digest::m_materialized_histogram

private

◆ m_next_pos

pos_t table_esmh_by_digest::m_next_pos

private

Next position.

◆ m_opened_index

PFS_index_esmh_by_digest* table_esmh_by_digest::m_opened_index

private

◆ m_pos

pos_t table_esmh_by_digest::m_pos

private

Current position.

◆ m_row

row_esmh_by_digest table_esmh_by_digest::m_row

private

◆ m_share

PFS_engine_table_share table_esmh_by_digest::m_share

static

Initial value:

= {
    &pfs_truncatable_acl,
    table_esmh_by_digest::create,
    nullptr,
    table_esmh_by_digest::delete_all_rows,
    table_esmh_by_digest::get_row_count,
    sizeof(pos_t),
    &m_table_lock,
    &m_table_def,
    false,
    PFS_engine_table_proxy(),
    {0},
    false 
}

Table share.

◆ m_table_def

Plugin_table table_esmh_by_digest::m_table_def

staticprivate

Table definition.

◆ m_table_lock

THR_LOCK table_esmh_by_digest::m_table_lock

staticprivate

Table share lock.

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

storage/perfschema/table_esmh_by_digest.h
storage/perfschema/table_esmh_by_digest.cc

Public Member Functions

Static Public Member Functions

Static Public Attributes

Protected Member Functions

Private Types

Private Attributes

Static Private Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ pos_t

Constructor & Destructor Documentation

◆ table_esmh_by_digest()

◆ ~table_esmh_by_digest()

Member Function Documentation

◆ create()

◆ delete_all_rows()

◆ get_row_count()

◆ index_init()

◆ index_next()

◆ make_row()

◆ materialize()

◆ read_row_values()

◆ reset_position()

◆ rnd_next()

◆ rnd_pos()

Member Data Documentation

◆ m_materialized_digest

◆ m_materialized_histogram

◆ m_next_pos

◆ m_opened_index

◆ m_pos

◆ m_row

◆ m_share

◆ m_table_def

◆ m_table_lock