Column metadata information. More...

#include <bulk_data_service.h>

Public Types
enum class	Compare { INTEGER_SIGNED , INTEGER_UNSIGNED , BINARY , MYSQL }
	Data comparison method. More...

Public Member Functions
bool	is_integer () const

Public Attributes
int	m_type
	Field type. More...

bool	m_is_nullable
	If column could be NULL. More...

bool	m_is_key
	If column is part of primary key. More...

bool	m_is_desc_key
	If the key is descending. More...

bool	m_is_prefix_key
	If the key is prefix of the column. More...

bool	m_is_fixed_len
	If it is fixed length type. More...

Compare	m_compare
	If it is integer type. More...

bool	m_is_unsigned
	If it is unsigned integer type. More...

bool	m_fixed_len_if_set_in_row
	Check the row header to find out if it is fixed length. More...

bool	m_is_single_byte_len
	If character column length can be kept in one byte. More...

uint16_t	m_fixed_len
	The length of column data if fixed. More...

uint16_t	m_max_len
	Maximum length of data in bytes. More...

uint16_t	m_index
	Index of column in row. More...

uint16_t	m_null_byte
	Byte index in NULL bitmap. More...

uint16_t	m_null_bit
	BIT number in NULL bitmap. More...

const void *	m_charset
	Character set for char & varchar columns. More...

Detailed Description

Column metadata information.

Member Enumeration Documentation

◆ Compare

enum class Column_meta::Compare

strong

Data comparison method.

Enumerator
INTEGER_SIGNED
INTEGER_UNSIGNED
BINARY
MYSQL

Member Function Documentation

◆ is_integer()

bool Column_meta::is_integer ( ) const

inline

Returns: true if integer type.

Member Data Documentation

◆ m_charset

const void* Column_meta::m_charset

Character set for char & varchar columns.

◆ m_compare

Compare Column_meta::m_compare

If it is integer type.

◆ m_fixed_len

uint16_t Column_meta::m_fixed_len

The length of column data if fixed.

◆ m_fixed_len_if_set_in_row

bool Column_meta::m_fixed_len_if_set_in_row

Check the row header to find out if it is fixed length.

For character data type the row header indicates fixed length.

◆ m_index

uint16_t Column_meta::m_index

Index of column in row.

◆ m_is_desc_key

bool Column_meta::m_is_desc_key

If the key is descending.

◆ m_is_fixed_len

bool Column_meta::m_is_fixed_len

If it is fixed length type.

◆ m_is_key

bool Column_meta::m_is_key

If column is part of primary key.

◆ m_is_nullable

bool Column_meta::m_is_nullable

If column could be NULL.

◆ m_is_prefix_key

bool Column_meta::m_is_prefix_key

If the key is prefix of the column.

◆ m_is_single_byte_len

bool Column_meta::m_is_single_byte_len

If character column length can be kept in one byte.

◆ m_is_unsigned

bool Column_meta::m_is_unsigned

If it is unsigned integer type.

◆ m_max_len

uint16_t Column_meta::m_max_len

Maximum length of data in bytes.

◆ m_null_bit

uint16_t Column_meta::m_null_bit

BIT number in NULL bitmap.

◆ m_null_byte

uint16_t Column_meta::m_null_byte

Byte index in NULL bitmap.

◆ m_type

int Column_meta::m_type

Field type.

The documentation for this struct was generated from the following file:

include/mysql/components/services/bulk_data_service.h

Public Types

Public Member Functions

Public Attributes