InnoDB partition specific Handler_share. More...

#include <ha_innopart.h>

Inheritance diagram for Ha_innopart_share:

Public Member Functions
	Ha_innopart_share (TABLE_SHARE *table_share)

	~Ha_innopart_share () override

void	set_table_part (uint part_id, dict_table_t *table)
	Set innodb table for given partition. More...

dict_table_t **	get_table_part_ref (uint part_id)
	Get table reference for given partition. More...

dict_table_t *	get_table_part (uint part_id) const
	Return innodb table for given partition. More...

dict_index_t *	get_index (uint part_id, uint keynr)
	Return innodb index for given partition and key number. More...

uint	get_mysql_key (uint part_id, const dict_index_t *index)
	Get MySQL key number corresponding to InnoDB index. More...

bool	has_table_parts () const
	Return whether share has opened InnoDB tables for partitions. More...

void	increment_ref_counts ()
	Increment share and InnoDB tables reference counters. More...

bool	set_table_parts_and_indexes (partition_info part_info, dict_table_t *table_parts)
	Initialize the share with table and indexes per partition. More...

void	close_table_parts ()
	Close the table partitions. More...

const TABLE_SHARE *	get_table_share () const

uint	get_num_parts () const
	Get the number of partitions. More...

void	set_v_templ (TABLE table, dict_table_t ib_table, const char *name)
	Set up the virtual column template for partition table, and points all m_table_parts[]->vc_templ to it. More...

Public Member Functions inherited from Partition_share
	Partition_share ()

	~Partition_share () override

bool	init_auto_inc_mutex (TABLE_SHARE *table_share)
	Initializes and sets auto_inc_mutex. More...

void	release_auto_inc_if_possible (THD thd, TABLE_SHARE table_share, const ulonglong next_insert_id, const ulonglong max_reserved)
	Release reserved auto increment values not used. More...

void	lock_auto_inc ()
	lock mutex protecting auto increment value next_auto_inc_val. More...

void	unlock_auto_inc ()
	unlock mutex protecting auto increment value next_auto_inc_val. More...

bool	populate_partition_name_hash (partition_info *part_info)
	Populate partition_name_hash with partition and subpartition names from part_info. More...

const char *	get_partition_name (size_t part_id) const
	Get partition name. More...

Public Member Functions inherited from Handler_share
	Handler_share ()=default

virtual	~Handler_share ()=default

Static Public Member Functions
static dict_table_t **	open_table_parts (THD thd, const TABLE table, const dd::Table dd_table, partition_info part_info, const char *table_name)
	Open InnoDB tables for partitions and return them as array. More...

static void	close_table_parts (dict_table_t **table_parts, uint tot_parts)
	Close InnoDB tables for partitions. More...

Private Member Functions
	Ha_innopart_share ()=default
	Disable default constructor. More...

Static Private Member Functions
static bool	open_one_table_part (dd::cache::Dictionary_client client, THD thd, const TABLE table, const dd::Partition dd_part, const char part_name, dict_table_t *part_dict_table)
	Open one partition. More...

Private Attributes
dict_table_t **	m_table_parts
	Array of all included table definitions (one per partition). More...

dict_index_t **	m_index_mapping
	Instead of INNOBASE_SHARE::idx_trans_tbl. More...

uint	m_tot_parts
	Total number of partitions. More...

uint	m_index_count
	Number of indexes. More...

uint	m_ref_count
	Reference count. More...

TABLE_SHARE *	m_table_share
	Pointer back to owning TABLE_SHARE. More...

Additional Inherited Members
Public Attributes inherited from Partition_share
bool	auto_inc_initialized
	Set if auto increment is used an initialized. More...

mysql_mutex_t *	auto_inc_mutex
	Mutex protecting next_auto_inc_val. More...

ulonglong	next_auto_inc_val
	First non reserved auto increment value. More...

std::unique_ptr< collation_unordered_map< std::string, unique_ptr_my_free< PART_NAME_DEF > > >	partition_name_hash
	Hash of partition names. More...

Detailed Description

InnoDB partition specific Handler_share.

Constructor & Destructor Documentation

◆ Ha_innopart_share() [1/2]

Ha_innopart_share::Ha_innopart_share ( TABLE_SHARE * table_share )

◆ ~Ha_innopart_share()

Ha_innopart_share::~Ha_innopart_share ( )

override

◆ Ha_innopart_share() [2/2]

Ha_innopart_share::Ha_innopart_share ( )

privatedefault

Disable default constructor.

Member Function Documentation

◆ close_table_parts() [1/2]

void Ha_innopart_share::close_table_parts ( void )

Close the table partitions.

If all instances are closed, also release the resources.

◆ close_table_parts() [2/2]

void Ha_innopart_share::close_table_parts	(	dict_table_t **	table_parts,
		uint	tot_parts
	)

static

Close InnoDB tables for partitions.

Parameters

[in]	table_parts	Array of InnoDB tables for partitions.
[in]	tot_parts	Number of partitions.

◆ get_index()

dict_index_t * Ha_innopart_share::get_index	(	uint	part_id,
		uint	keynr
	)

inline

Return innodb index for given partition and key number.

Parameters

[in]	part_id	Partition number.
[in]	keynr	Key number.

Returns: InnoDB index.

◆ get_mysql_key()

uint Ha_innopart_share::get_mysql_key	(	uint	part_id,
		const dict_index_t *	index
	)

inline

Get MySQL key number corresponding to InnoDB index.

Calculates the key number used inside MySQL for an Innobase index. We will first check the "index translation table" for a match of the index to get the index number. If there does not exist an "index translation table", or not able to find the index in the translation table, then we will fall back to the traditional way of looping through dict_index_t list to find a match. In this case, we have to take into account if we generated a default clustered index for the table

Parameters

[in]	part_id	Partition the index belongs to.
[in]	index	Index to return MySQL key number for.

Returns: the key number used inside MySQL or UINT_MAX if key is not found.

◆ get_num_parts()

uint Ha_innopart_share::get_num_parts ( ) const

inline

Get the number of partitions.

Returns: number of partitions

◆ get_table_part()

dict_table_t * Ha_innopart_share::get_table_part ( uint part_id ) const

inline

Return innodb table for given partition.

Parameters

[in] part_id Partition number.

Returns: InnoDB table.

◆ get_table_part_ref()

dict_table_t ** Ha_innopart_share::get_table_part_ref ( uint part_id )

inline

Get table reference for given partition.

Parameters

[in] part_id Partition number

Returns: InnoDB table reference.

◆ get_table_share()

const TABLE_SHARE * Ha_innopart_share::get_table_share ( ) const

inline

Returns: the TABLE SHARE object

◆ has_table_parts()

bool Ha_innopart_share::has_table_parts ( ) const

inline

Return whether share has opened InnoDB tables for partitions.

◆ increment_ref_counts()

void Ha_innopart_share::increment_ref_counts ( )

Increment share and InnoDB tables reference counters.

◆ open_one_table_part()

bool Ha_innopart_share::open_one_table_part	(	dd::cache::Dictionary_client *	client,
		THD *	thd,
		const TABLE *	table,
		const dd::Partition *	dd_part,
		const char *	part_name,
		dict_table_t **	part_dict_table
	)

staticprivate

Open one partition.

Parameters

[in,out]	client	Data dictionary client
[in]	thd	Thread THD
[in]	table	MySQL table definition
[in]	dd_part	dd::Partition
[in]	part_name	Table name of this partition
[out]	part_dict_table	InnoDB table for partition

Return values

false	On success
true	On failure

◆ open_table_parts()

dict_table_t ** Ha_innopart_share::open_table_parts	(	THD *	thd,
		const TABLE *	table,
		const dd::Table *	dd_table,
		partition_info *	part_info,
		const char *	table_name
	)

static

Open InnoDB tables for partitions and return them as array.

Parameters

[in,out]	thd	Thread context
[in]	table	MySQL table definition
[in]	dd_table	Global DD table object
[in]	part_info	Partition info (partition names to use)
[in]	table_name	Table name (db/table_name)

Returns: Array on InnoDB tables on success else nullptr.

◆ set_table_part()

void Ha_innopart_share::set_table_part	(	uint	part_id,
		dict_table_t *	table
	)

inline

Set innodb table for given partition.

Parameters

[in]	part_id	Partition number.
[in]	table	Table.

◆ set_table_parts_and_indexes()

bool Ha_innopart_share::set_table_parts_and_indexes	(	partition_info *	part_info,
		dict_table_t **	table_parts
	)

Initialize the share with table and indexes per partition.

Parameters

[in]	part_info	Partition info (partition names to use).
[in]	table_parts	Array of InnoDB tables for partitions.

Returns: false on success else true.

◆ set_v_templ()

void Ha_innopart_share::set_v_templ	(	TABLE *	table,
		dict_table_t *	ib_table,
		const char *	name
	)

Set up the virtual column template for partition table, and points all m_table_parts[]->vc_templ to it.

Parameters

[in]	table	MySQL TABLE object
[in]	ib_table	InnoDB dict_table_t
[in]	name	Table name (db/table_name)

Member Data Documentation

◆ m_index_count

uint Ha_innopart_share::m_index_count

private

Number of indexes.

◆ m_index_mapping

dict_index_t** Ha_innopart_share::m_index_mapping

private

Instead of INNOBASE_SHARE::idx_trans_tbl.

Maps MySQL index number to InnoDB index per partition.

◆ m_ref_count

uint Ha_innopart_share::m_ref_count

private

Reference count.

◆ m_table_parts

dict_table_t** Ha_innopart_share::m_table_parts

private

Array of all included table definitions (one per partition).

◆ m_table_share

TABLE_SHARE* Ha_innopart_share::m_table_share

private

Pointer back to owning TABLE_SHARE.

◆ m_tot_parts

uint Ha_innopart_share::m_tot_parts

private

Total number of partitions.

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

storage/innobase/handler/ha_innopart.h
storage/innobase/handler/ha_innopart.cc

Public Member Functions

Static Public Member Functions

Private Member Functions

Static Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ Ha_innopart_share() [1/2]

◆ ~Ha_innopart_share()

◆ Ha_innopart_share() [2/2]

Member Function Documentation

◆ close_table_parts() [1/2]

◆ close_table_parts() [2/2]

◆ get_index()

◆ get_mysql_key()

◆ get_num_parts()

◆ get_table_part()

◆ get_table_part_ref()

◆ get_table_share()

◆ has_table_parts()

◆ increment_ref_counts()

◆ open_one_table_part()

◆ open_table_parts()

◆ set_table_part()

◆ set_table_parts_and_indexes()

◆ set_v_templ()

Member Data Documentation

◆ m_index_count

◆ m_index_mapping

◆ m_ref_count

◆ m_table_parts

◆ m_table_share

◆ m_tot_parts