#include "dict0dict.h"
#include "rem0rec.h"
#include "trx0undo.h"

Include dependency graph for row0row.ic:

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Functions
UNIV_INLINE ulint	row_get_trx_id_offset (const dict_index_t index, const ulint offsets)
UNIV_INLINE trx_id_t	row_get_rec_trx_id (const rec_t rec, const dict_index_t index, const ulint *offsets)
UNIV_INLINE roll_ptr_t	row_get_rec_roll_ptr (const rec_t rec, const dict_index_t index, const ulint *offsets)
UNIV_INLINE dtuple_t *	row_build_index_entry (const dtuple_t row, const row_ext_t ext, dict_index_t index, mem_heap_t heap)
UNIV_INLINE void	row_build_row_ref_fast (dtuple_t ref, const ulint map, const rec_t rec, const ulint offsets)

Detailed Description

General row routines

Created 4/20/1996 Heikki Tuuri

Function Documentation

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

When an insert or purge to a table is performed, this function builds the entry to be inserted into or purged from an index on the table.

Returns: index entry which should be inserted or purged, or NULL if the externally stored columns in the clustered index record are unavailable and ext != NULL

Parameters

row	in: row which should be inserted or purged
ext	in: externally stored column prefixes, or NULL
index	in: index on the table
heap	in: memory heap from which the memory for the index entry is allocated

UNIV_INLINE 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.

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()

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

Reads the roll pointer field from a clustered index record.

Parameters

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

Reads the trx id field from a clustered index record.

Parameters

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

Gets the offset of the DB_TRX_ID field, in bytes relative to the origin of a clustered index record.

Parameters

index	in: clustered index
offsets	in: record offsets