General row routines. More...

#include <cmath>
#include <cstdint>
#include "dict0dict.h"
#include "rem0rec.h"
#include "trx0undo.h"

Functions
static ulint	row_get_trx_id_offset (const dict_index_t index, const ulint offsets)

static trx_id_t	row_get_rec_trx_id (const rec_t rec, const dict_index_t index, const ulint *offsets)

static roll_ptr_t	row_get_rec_roll_ptr (const rec_t rec, const dict_index_t index, const ulint *offsets)

static dtuple_t *	row_build_index_entry (const dtuple_t row, const row_ext_t ext, const dict_index_t index, mem_heap_t heap)

static void	row_build_row_ref_fast (dtuple_t ref, const ulint map, const rec_t rec, const ulint offsets)
	Builds from a secondary index record a row reference with which we can search the clustered index record. More...

uint64_t	row_parse_int (const byte *data, ulint len, ulint mtype, bool unsigned_type)
	Parse the integer data from specified data, which could be DATA_INT, DATA_FLOAT or DATA_DOUBLE. More...

Detailed Description

General row routines.

Created 4/20/1996 Heikki Tuuri

Function Documentation

static dtuple_t * row_build_index_entry	(	const dtuple_t *	row,
		const row_ext_t *	ext,
		const dict_index_t *	index,
		mem_heap_t *	heap
	)

inlinestatic

static void row_build_row_ref_fast	(	dtuple_t *	ref,
		const ulint *	map,
		const rec_t *	rec,
		const ulint *	offsets
	)

inlinestatic

Builds from a secondary index record a row reference with which we can search the clustered index record.

Parameters

ref	in/out: typed data tuple where the reference is built
map	in: array of field numbers in rec telling how ref should be built from the fields of rec
rec	in: record in the index; must be preserved while ref is used, as we do not copy field values to heap
offsets	in: array returned by rec_get_offsets()

static roll_ptr_t row_get_rec_roll_ptr	(	const rec_t *	rec,
		const dict_index_t *	index,
		const ulint *	offsets
	)

inlinestatic

static trx_id_t row_get_rec_trx_id	(	const rec_t *	rec,
		const dict_index_t *	index,
		const ulint *	offsets
	)

inlinestatic

static ulint row_get_trx_id_offset	(	const dict_index_t *	index,
		const ulint *	offsets
	)

inlinestatic

inline

Parse the integer data from specified data, which could be DATA_INT, DATA_FLOAT or DATA_DOUBLE.

If the value is less than 0 and the type is not unsigned then we reset the value to 0

Parameters