rem0types.h File Reference

Record manager global types. More...

#include "univ.i"

Go to the source code of this file.

Macros
#define	REC_MAX_N_FIELDS   (1024 - 1)
#define	REC_MAX_HEAP_NO   (2 * 8192 - 1)
#define	REC_MAX_N_OWNED   (16 - 1)
#define	REC_MAX_N_USER_FIELDS   (REC_MAX_N_FIELDS - DATA_N_SYS_COLS * 2)
#define	REC_ANTELOPE_MAX_INDEX_COL_LEN   768
#define	REC_VERSION_56_MAX_INDEX_COL_LEN   3072
	Maximum indexed field length for tables that have atomic BLOBs. More...

Typedefs
typedef byte	rec_t
typedef enum rec_format_enum	rec_format_t

Enumerations
enum	rec_format_enum { REC_FORMAT_REDUNDANT = 0, REC_FORMAT_COMPACT = 1, REC_FORMAT_COMPRESSED = 2, REC_FORMAT_DYNAMIC = 3 }
	Innodb row types are a subset of the MySQL global enum row_type. More...

Detailed Description

Record manager global types.

Created 5/30/1994 Heikki Tuuri

Macro Definition Documentation

REC_ANTELOPE_MAX_INDEX_COL_LEN

#define REC_ANTELOPE_MAX_INDEX_COL_LEN   768

REC_MAX_HEAP_NO

#define REC_MAX_HEAP_NO   (2 * 8192 - 1)

REC_MAX_N_FIELDS

#define REC_MAX_N_FIELDS   (1024 - 1)

REC_MAX_N_OWNED

#define REC_MAX_N_OWNED   (16 - 1)

REC_MAX_N_USER_FIELDS

#define REC_MAX_N_USER_FIELDS   (REC_MAX_N_FIELDS - DATA_N_SYS_COLS * 2)

REC_VERSION_56_MAX_INDEX_COL_LEN

#define REC_VERSION_56_MAX_INDEX_COL_LEN   3072

Maximum indexed field length for tables that have atomic BLOBs.

This (3072) is the maximum index row length allowed, so we cannot create index prefix column longer than that.

Typedef Documentation

rec_format_t

typedef enum rec_format_enum rec_format_t

rec_t

typedef byte rec_t

Enumeration Type Documentation

rec_format_enum

enum rec_format_enum

Innodb row types are a subset of the MySQL global enum row_type.

They are made into their own enum so that switch statements can account for each of them.

Enumerator
REC_FORMAT_REDUNDANT	REDUNDANT row format.
REC_FORMAT_COMPACT	COMPACT row format.
REC_FORMAT_COMPRESSED	COMPRESSED row format.
REC_FORMAT_DYNAMIC	DYNAMIC row format.