temptable::Table Class Reference

#include <table.h>

Classes
struct	Index_entry
	Index entry for storing index pointer as well as allocated memory size. More...

Public Member Functions
	Table (TABLE *mysql_table, Block *shared_block, bool all_columns_are_fixed_size, size_t tmp_table_size_limit)
	Table (const Table &)=delete
Table &	operator= (const Table &)=delete
	Table (Table &&other)=delete
Table &	operator= (Table &&rhs)=delete
	~Table ()
const TABLE_SHARE *	mysql_table_share () const
size_t	mysql_row_length () const
size_t	number_of_indexes () const
size_t	number_of_columns () const
const Columns &	columns () const
size_t	number_of_rows () const
const Index &	index (size_t i) const
const Column &	column (size_t i) const
const Storage &	rows () const
void	row (const Storage::Iterator &pos, unsigned char *mysql_row) const
Result	insert (const unsigned char *mysql_row)
	Insert a new row in the table. More...
Result	update (const unsigned char *mysql_row_old, const unsigned char *mysql_row_new, Storage::Element *target_row)
	Update a row in the table. More...
Result	remove (const unsigned char *mysql_row_must_be, const Storage::Iterator &victim_position)
void	truncate ()
Result	disable_indexes ()
Result	enable_indexes ()

Private Member Functions
bool	indexed () const
	Check if the table is indexed. More...
template<class T >
void	append_new_index (const KEY &mysql_index)
	Create index for given key and append it to indexes table. More...
void	indexes_create ()
	Create the indexes in m_index_entries from m_mysql_table->key_info[]. More...
void	indexes_destroy ()
	Destroy the indexes in m_index_entries. More...
bool	is_index_update_needed (const unsigned char *mysql_row_old, const unsigned char *mysql_row_new) const
Result	indexes_insert (Storage::Element *row)
Result	indexes_remove (Storage::Element *row)

Private Attributes
TableResourceMonitor	m_resource_monitor
Allocator< uint8_t >	m_allocator
	Allocator for all members that need dynamic memory allocation. More...
Storage	m_rows
	Rows of the table. More...
bool	m_all_columns_are_fixed_size
bool	m_indexes_are_enabled
uint32_t	m_mysql_row_length
std::vector< Index_entry, Allocator< Index_entry > >	m_index_entries
std::vector< Cursor, Allocator< Cursor > >	m_insert_undo
Columns	m_columns
TABLE_SHARE *	m_mysql_table_share

Constructor & Destructor Documentation

Table() [1/3]

temptable::Table::Table	(	TABLE *	mysql_table,
		Block *	shared_block,
		bool	all_columns_are_fixed_size,
		size_t	tmp_table_size_limit
	)

Table() [2/3]

temptable::Table::Table ( const Table &  )

delete

Table() [3/3]

temptable::Table::Table ( Table &&  other )

delete

~Table()

temptable::Table::~Table

(

)

Member Function Documentation

append_new_index()

template<class T >

void temptable::Table::append_new_index ( const KEY &  mysql_index )

inlineprivate

Create index for given key and append it to indexes table.

Create index for given key and appends it to indexes table.

column()

const Column & temptable::Table::column ( size_t  i ) const

inline

columns()

const Columns & temptable::Table::columns ( ) const

inline

disable_indexes()

Result temptable::Table::disable_indexes ( )

inline

enable_indexes()

Result temptable::Table::enable_indexes ( )

inline

index()

const Index & temptable::Table::index ( size_t  i ) const

inline

indexed()

bool temptable::Table::indexed ( ) const

inlineprivate

Check if the table is indexed.

Return values

true	if there are any indexes defined and not disabled.
false	table is not indexed.

indexes_create()

void temptable::Table::indexes_create ( )

private

Create the indexes in m_index_entries from m_mysql_table->key_info[].

indexes_destroy()

void temptable::Table::indexes_destroy ( )

private

Destroy the indexes in m_index_entries.

indexes_insert()

Result temptable::Table::indexes_insert ( Storage::Element *  row )

private

indexes_remove()

Result temptable::Table::indexes_remove ( Storage::Element *  row )

private

insert()

Result temptable::Table::insert

(

const unsigned char *

mysql_row

)

Insert a new row in the table.

If something else than Result::OK is returned, then the state of the table and its indexes is unchanged by the call of this method (ie the method takes care to clean up any half completed work in case of an error and restore the table to its state before this method was called).

Returns

result code

Parameters

[in]

mysql_row

The contents of the new row to be inserted.

is_index_update_needed()

bool temptable::Table::is_index_update_needed ( const unsigned char *  mysql_row_old, const unsigned char *  mysql_row_new  ) const

private

mysql_row_length()

size_t temptable::Table::mysql_row_length ( ) const

inline

mysql_table_share()

const TABLE_SHARE * temptable::Table::mysql_table_share ( ) const

inline

number_of_columns()

size_t temptable::Table::number_of_columns ( ) const

inline

number_of_indexes()

size_t temptable::Table::number_of_indexes ( ) const

inline

number_of_rows()

size_t temptable::Table::number_of_rows ( ) const

inline

operator=() [1/2]

Table & temptable::Table::operator= ( const Table &  )

delete

operator=() [2/2]

Table & temptable::Table::operator= ( Table &&  rhs )

delete

remove()

Result temptable::Table::remove	(	const unsigned char *	mysql_row_must_be,
		const Storage::Iterator &	victim_position
	)

row()

void temptable::Table::row ( const Storage::Iterator &  pos, unsigned char *  mysql_row  ) const

inline

rows()

const Storage & temptable::Table::rows ( ) const

inline

truncate()

void temptable::Table::truncate ( void  )

inline

update()

Result temptable::Table::update	(	const unsigned char *	mysql_row_old,
		const unsigned char *	mysql_row_new,
		Storage::Element *	target_row
	)

Update a row in the table.

The semantics of this are enforced by the handler API. If something else than Result::OK is returned, then the state of the table and its indexes is unchanged by the call of this method (ie the method takes care to clean up any half completed work in case of an error and restore the table to its state before this method was called).

Returns

result code

Parameters

[in]	mysql_row_old	The contents of the old row to be updated. The row pointed to by `target_row` must equal this.
[in]	mysql_row_new	The contents of the new row.
[in,out]	target_row	Position in the list of rows to update. The row pointed to by this must equal `mysql_row_old`.

Member Data Documentation

m_all_columns_are_fixed_size

bool temptable::Table::m_all_columns_are_fixed_size

private

m_allocator

Allocator<uint8_t> temptable::Table::m_allocator

private

Allocator for all members that need dynamic memory allocation.

m_columns

Columns temptable::Table::m_columns

private

m_index_entries

std::vector<Index_entry, Allocator<Index_entry> > temptable::Table::m_index_entries

private

m_indexes_are_enabled

bool temptable::Table::m_indexes_are_enabled

private

m_insert_undo

std::vector<Cursor, Allocator<Cursor> > temptable::Table::m_insert_undo

private

m_mysql_row_length

uint32_t temptable::Table::m_mysql_row_length

private

m_mysql_table_share

TABLE_SHARE* temptable::Table::m_mysql_table_share

private

m_resource_monitor

TableResourceMonitor temptable::Table::m_resource_monitor

private

m_rows

Storage temptable::Table::m_rows

private

Rows of the table.

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

• storage/temptable/include/temptable/table.h
• storage/temptable/src/table.cc