Alter_table_ctx Class Reference

Runtime context for ALTER TABLE. More...

#include <sql_alter.h>

Public Types
typedef uint	error_if_not_empty_mask

Public Member Functions
	Alter_table_ctx ()
	Alter_table_ctx (THD *thd, Table_ref *table_list, uint tables_opened_arg, const char *new_db_arg, const char *new_name_arg)
	~Alter_table_ctx ()
bool	is_database_changed () const
bool	is_table_name_changed () const
bool	is_table_renamed () const
const char *	get_path () const
const char *	get_tmp_path () const

Public Attributes
Create_field *	datetime_field
error_if_not_empty_mask	error_if_not_empty
uint	tables_opened
const char *	db
const char *	table_name
const char *	alias
const char *	new_db
const char *	new_name
const char *	new_alias
char	tmp_name [80]
FOREIGN_KEY *	fk_info
uint	fk_count
uint	fk_max_generated_name_number
	Maximum number component used by generated foreign key names in the old version of table. More...
MDL_request	target_mdl_request
	Metadata lock request on table's new name when this name or database are changed. More...
MDL_request	target_db_mdl_request
	Metadata lock request on table's new database if it is changed. More...

Static Public Attributes
static const error_if_not_empty_mask	DATETIME_WITHOUT_DEFAULT = 1 << 0
static const error_if_not_empty_mask	GEOMETRY_WITHOUT_DEFAULT = 1 << 1

Private Member Functions
Alter_table_ctx &	operator= (const Alter_table_ctx &rhs)
	Alter_table_ctx (const Alter_table_ctx &rhs)

Private Attributes
char	new_filename [FN_REFLEN+1]
char	new_alias_buff [FN_REFLEN+1]
char	path [FN_REFLEN+1]
char	new_path [FN_REFLEN+1]
char	tmp_path [FN_REFLEN+1]
bool	tmp_table
	Indicates that we are altering temporary table. More...

Detailed Description

Runtime context for ALTER TABLE.

Member Typedef Documentation

error_if_not_empty_mask

typedef uint Alter_table_ctx::error_if_not_empty_mask

Constructor & Destructor Documentation

Alter_table_ctx() [1/3]

Alter_table_ctx::Alter_table_ctx

(

)

Alter_table_ctx() [2/3]

Alter_table_ctx::Alter_table_ctx	(	THD *	thd,
		Table_ref *	table_list,
		uint	tables_opened_arg,
		const char *	new_db_arg,
		const char *	new_name_arg
	)

~Alter_table_ctx()

Alter_table_ctx::~Alter_table_ctx ( )

default

Alter_table_ctx() [3/3]

Alter_table_ctx::Alter_table_ctx ( const Alter_table_ctx &  rhs )

private

Member Function Documentation

get_path()

const char * Alter_table_ctx::get_path ( ) const

inline

Returns

path to the original table.

get_tmp_path()

const char * Alter_table_ctx::get_tmp_path ( ) const

inline

Returns

path to the temporary table created during ALTER TABLE.

is_database_changed()

bool Alter_table_ctx::is_database_changed ( ) const

inline

Returns

true if the table is moved to another database, false otherwise.

is_table_name_changed()

bool Alter_table_ctx::is_table_name_changed ( ) const

inline

Returns

true if the table name is changed, false otherwise.

is_table_renamed()

bool Alter_table_ctx::is_table_renamed ( ) const

inline

Returns

true if the table is renamed (i.e. its name or database changed), false otherwise.

operator=()

Alter_table_ctx & Alter_table_ctx::operator= ( const Alter_table_ctx &  rhs )

private

Member Data Documentation

alias

const char* Alter_table_ctx::alias

datetime_field

Create_field* Alter_table_ctx::datetime_field

DATETIME_WITHOUT_DEFAULT

const error_if_not_empty_mask Alter_table_ctx::DATETIME_WITHOUT_DEFAULT = 1 << 0

static

db

const char* Alter_table_ctx::db

error_if_not_empty

error_if_not_empty_mask Alter_table_ctx::error_if_not_empty

fk_count

uint Alter_table_ctx::fk_count

fk_info

FOREIGN_KEY* Alter_table_ctx::fk_info

fk_max_generated_name_number

uint Alter_table_ctx::fk_max_generated_name_number

Maximum number component used by generated foreign key names in the old version of table.

GEOMETRY_WITHOUT_DEFAULT

const error_if_not_empty_mask Alter_table_ctx::GEOMETRY_WITHOUT_DEFAULT = 1 << 1

static

new_alias

const char* Alter_table_ctx::new_alias

new_alias_buff

char Alter_table_ctx::new_alias_buff[FN_REFLEN+1]

private

new_db

const char* Alter_table_ctx::new_db

new_filename

char Alter_table_ctx::new_filename[FN_REFLEN+1]

private

new_name

const char* Alter_table_ctx::new_name

new_path

char Alter_table_ctx::new_path[FN_REFLEN+1]

private

path

char Alter_table_ctx::path[FN_REFLEN+1]

private

table_name

const char* Alter_table_ctx::table_name

tables_opened

uint Alter_table_ctx::tables_opened

target_db_mdl_request

MDL_request Alter_table_ctx::target_db_mdl_request

Metadata lock request on table's new database if it is changed.

target_mdl_request

MDL_request Alter_table_ctx::target_mdl_request

Metadata lock request on table's new name when this name or database are changed.

tmp_name

char Alter_table_ctx::tmp_name[80]

tmp_path

char Alter_table_ctx::tmp_path[FN_REFLEN+1]

private

tmp_table

bool Alter_table_ctx::tmp_table

private

Indicates that we are altering temporary table.

Used only in asserts.

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

• sql/sql_alter.h
• sql/sql_alter.cc