Values for the flags bitmask used by Send_field:flags. More...

Collaboration diagram for Column Definition Flags:

Macros
#define	NOT_NULL_FLAG 1
	Field can't be NULL. More...

#define	PRI_KEY_FLAG 2
	Field is part of a primary key. More...

#define	UNIQUE_KEY_FLAG 4
	Field is part of a unique key. More...

#define	MULTIPLE_KEY_FLAG 8
	Field is part of a key. More...

#define	BLOB_FLAG 16
	Field is a blob. More...

#define	UNSIGNED_FLAG 32
	Field is unsigned. More...

#define	ZEROFILL_FLAG 64
	Field is zerofill. More...

#define	BINARY_FLAG 128
	Field is binary More...

#define	ENUM_FLAG 256
	field is an enum More...

#define	AUTO_INCREMENT_FLAG 512
	field is a autoincrement field More...

#define	TIMESTAMP_FLAG 1024
	Field is a timestamp. More...

#define	SET_FLAG 2048
	field is a set More...

#define	NO_DEFAULT_VALUE_FLAG 4096
	Field doesn't have default value. More...

#define	ON_UPDATE_NOW_FLAG 8192
	Field is set to NOW on UPDATE. More...

#define	NUM_FLAG 32768
	Field is num (for clients) More...

#define	PART_KEY_FLAG 16384
	Intern; Part of some key. More...

#define	GROUP_FLAG 32768
	Intern: Group field. More...

#define	UNIQUE_FLAG 65536
	Intern: Used by sql_yacc. More...

#define	BINCMP_FLAG 131072
	Intern: Used by sql_yacc. More...

#define	GET_FIXED_FIELDS_FLAG (1 << 18)
	Used to get fields in item tree . More...

#define	FIELD_IN_PART_FUNC_FLAG (1 << 19)
	Field part of partition func. More...

#define	FIELD_IN_ADD_INDEX (1 << 20)
	Intern: Field in TABLE object for new version of altered table, which participates in a newly added index. More...

#define	FIELD_IS_RENAMED (1 << 21)
	Intern: Field is being renamed. More...

#define	FIELD_FLAGS_STORAGE_MEDIA 22
	Field storage media, bit 22-23. More...

#define	FIELD_FLAGS_STORAGE_MEDIA_MASK (3 << FIELD_FLAGS_STORAGE_MEDIA)

#define	FIELD_FLAGS_COLUMN_FORMAT 24
	Field column format, bit 24-25. More...

#define	FIELD_FLAGS_COLUMN_FORMAT_MASK (3 << FIELD_FLAGS_COLUMN_FORMAT)

#define	FIELD_IS_DROPPED (1 << 26)
	Intern: Field is being dropped. More...

#define	EXPLICIT_NULL_FLAG (1 << 27)
	Field is explicitly specified as \ NULL by the user. More...

#define	NOT_SECONDARY_FLAG (1 << 29)
	Field will not be loaded in secondary engine. More...

#define	FIELD_IS_INVISIBLE (1 << 30)
	Field is explicitly marked as invisible by the user. More...

Detailed Description

Values for the flags bitmask used by Send_field:flags.

Currently need to fit into 32 bits.

Each bit represents an optional feature of the protocol.

Both the client and the server are sending these.

The intersection of the two determines what optional parts of the protocol will be used.

Macro Definition Documentation

◆ AUTO_INCREMENT_FLAG

#define AUTO_INCREMENT_FLAG 512

field is a autoincrement field

◆ BINARY_FLAG

#define BINARY_FLAG 128

Field is binary

◆ BINCMP_FLAG

#define BINCMP_FLAG 131072

Intern: Used by sql_yacc.

◆ BLOB_FLAG

#define BLOB_FLAG 16

Field is a blob.

◆ ENUM_FLAG

#define ENUM_FLAG 256

field is an enum

◆ EXPLICIT_NULL_FLAG

#define EXPLICIT_NULL_FLAG (1 << 27)

Field is explicitly specified as \ NULL by the user.

◆ FIELD_FLAGS_COLUMN_FORMAT

#define FIELD_FLAGS_COLUMN_FORMAT 24

Field column format, bit 24-25.

◆ FIELD_FLAGS_COLUMN_FORMAT_MASK

#define FIELD_FLAGS_COLUMN_FORMAT_MASK (3 << FIELD_FLAGS_COLUMN_FORMAT)

◆ FIELD_FLAGS_STORAGE_MEDIA

#define FIELD_FLAGS_STORAGE_MEDIA 22

Field storage media, bit 22-23.

◆ FIELD_FLAGS_STORAGE_MEDIA_MASK

#define FIELD_FLAGS_STORAGE_MEDIA_MASK (3 << FIELD_FLAGS_STORAGE_MEDIA)

◆ FIELD_IN_ADD_INDEX

#define FIELD_IN_ADD_INDEX (1 << 20)

Intern: Field in TABLE object for new version of altered table, which participates in a newly added index.

◆ FIELD_IN_PART_FUNC_FLAG

#define FIELD_IN_PART_FUNC_FLAG (1 << 19)

Field part of partition func.

◆ FIELD_IS_DROPPED

#define FIELD_IS_DROPPED (1 << 26)

Intern: Field is being dropped.

◆ FIELD_IS_INVISIBLE

#define FIELD_IS_INVISIBLE (1 << 30)

Field is explicitly marked as invisible by the user.

◆ FIELD_IS_RENAMED

#define FIELD_IS_RENAMED (1 << 21)

Intern: Field is being renamed.

◆ GET_FIXED_FIELDS_FLAG

#define GET_FIXED_FIELDS_FLAG (1 << 18)

Used to get fields in item tree .

◆ GROUP_FLAG

#define GROUP_FLAG 32768

Intern: Group field.

◆ MULTIPLE_KEY_FLAG

#define MULTIPLE_KEY_FLAG 8

Field is part of a key.

◆ NO_DEFAULT_VALUE_FLAG

#define NO_DEFAULT_VALUE_FLAG 4096

Field doesn't have default value.

◆ NOT_NULL_FLAG

#define NOT_NULL_FLAG 1

Field can't be NULL.

◆ NOT_SECONDARY_FLAG

#define NOT_SECONDARY_FLAG (1 << 29)

Field will not be loaded in secondary engine.

◆ NUM_FLAG

#define NUM_FLAG 32768

Field is num (for clients)

◆ ON_UPDATE_NOW_FLAG

#define ON_UPDATE_NOW_FLAG 8192

Field is set to NOW on UPDATE.

◆ PART_KEY_FLAG

#define PART_KEY_FLAG 16384

Intern; Part of some key.

◆ PRI_KEY_FLAG

#define PRI_KEY_FLAG 2

Field is part of a primary key.

◆ SET_FLAG

#define SET_FLAG 2048

field is a set

◆ TIMESTAMP_FLAG

#define TIMESTAMP_FLAG 1024

Field is a timestamp.

◆ UNIQUE_FLAG

#define UNIQUE_FLAG 65536