Alter_info Class Reference

#include <sql_alter.h>

Collaboration diagram for Alter_info:

Public Types
enum	enum_enable_or_disable { LEAVE_AS_IS, ENABLE, DISABLE }
enum	enum_alter_table_algorithm { ALTER_TABLE_ALGORITHM_DEFAULT, ALTER_TABLE_ALGORITHM_INPLACE, ALTER_TABLE_ALGORITHM_COPY }
enum	enum_alter_table_lock { ALTER_TABLE_LOCK_DEFAULT, ALTER_TABLE_LOCK_NONE, ALTER_TABLE_LOCK_SHARED, ALTER_TABLE_LOCK_EXCLUSIVE }

Public Member Functions
void	reset ()
	Alter_info (const Alter_info &rhs, MEM_ROOT *mem_root)
bool	set_requested_algorithm (const LEX_STRING *str)
bool	set_requested_lock (const LEX_STRING *str)

Public Attributes
List< Alter_drop >	drop_list
List< Alter_column >	alter_list
List< Key >	key_list
List< Create_field >	create_list
uint	flags
enum_enable_or_disable	keys_onoff
List< char >	partition_names
uint	num_parts
enum_alter_table_algorithm	requested_algorithm
enum_alter_table_lock	requested_lock

Static Public Attributes
static const uint	ALTER_ADD_COLUMN = 1L << 0
static const uint	ALTER_DROP_COLUMN = 1L << 1
static const uint	ALTER_CHANGE_COLUMN = 1L << 2
static const uint	ALTER_ADD_INDEX = 1L << 3
static const uint	ALTER_DROP_INDEX = 1L << 4
static const uint	ALTER_RENAME = 1L << 5
static const uint	ALTER_ORDER = 1L << 6
static const uint	ALTER_OPTIONS = 1L << 7
static const uint	ALTER_CHANGE_COLUMN_DEFAULT = 1L << 8
static const uint	ALTER_KEYS_ONOFF = 1L << 9
static const uint	ALTER_CONVERT = 1L << 10
static const uint	ALTER_RECREATE = 1L << 11
static const uint	ALTER_ADD_PARTITION = 1L << 12
static const uint	ALTER_DROP_PARTITION = 1L << 13
static const uint	ALTER_COALESCE_PARTITION = 1L << 14
static const uint	ALTER_REORGANIZE_PARTITION = 1L << 15
static const uint	ALTER_PARTITION = 1L << 16
static const uint	ALTER_ADMIN_PARTITION = 1L << 17
static const uint	ALTER_TABLE_REORG = 1L << 18
static const uint	ALTER_REBUILD_PARTITION = 1L << 19
static const uint	ALTER_ALL_PARTITION = 1L << 20
static const uint	ALTER_REMOVE_PARTITIONING = 1L << 21
static const uint	ADD_FOREIGN_KEY = 1L << 22
static const uint	DROP_FOREIGN_KEY = 1L << 23
static const uint	ALTER_EXCHANGE_PARTITION = 1L << 24
static const uint	ALTER_TRUNCATE_PARTITION = 1L << 25
static const uint	ALTER_COLUMN_ORDER = 1L << 26

Detailed Description

Data describing the table being created by CREATE TABLE or altered by ALTER TABLE.

Definition at line 29 of file sql_alter.h.

Member Enumeration Documentation

enum Alter_info::enum_alter_table_algorithm

The different values of the ALGORITHM clause. Describes which algorithm to use when altering the table.

Definition at line 133 of file sql_alter.h.

enum Alter_info::enum_alter_table_lock

The different values of the LOCK clause. Describes the level of concurrency during ALTER TABLE.

Definition at line 150 of file sql_alter.h.

Constructor & Destructor Documentation

Alter_info::Alter_info	(	const Alter_info &	rhs,
		MEM_ROOT *	mem_root
	)

Construct a copy of this object to be used for mysql_alter_table and mysql_create_table.

Historically, these two functions modify their Alter_info arguments. This behaviour breaks re-execution of prepared statements and stored procedures and is compensated by always supplying a copy of Alter_info to these functions.

Parameters

rhs	Alter_info to make copy of
mem_root	Mem_root for new Alter_info

Note

You need to use check the error in THD for out of memory condition after calling this function.

Definition at line 23 of file sql_alter.cc.

Member Function Documentation

bool Alter_info::set_requested_algorithm

(

const LEX_STRING *

str

)

Parses the given string and sets requested_algorithm if the string value matches a supported value. Supported values: INPLACE, COPY, DEFAULT

Parameters

str	String containing the supplied value

Return values

false	Supported value found, state updated
true	Not supported value, no changes made

Definition at line 52 of file sql_alter.cc.

bool Alter_info::set_requested_lock

(

const LEX_STRING *

str

)

Parses the given string and sets requested_lock if the string value matches a supported value. Supported values: NONE, SHARED, EXCLUSIVE, DEFAULT

Parameters

str	String containing the supplied value

Return values

false	Supported value found, state updated
true	Not supported value, no changes made

Definition at line 67 of file sql_alter.cc.

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

• sql/sql_alter.h
• sql/sql_alter.cc