#include "mtr0log.h"#include "trx0trx.h"#include "trx0undo.h"#include "row0row.h"#include "lock0lock.h"#include "page0zip.h"
Include dependency graph for row0upd.ic:
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Functions | |
| UNIV_INLINE upd_t * | upd_create (ulint n, mem_heap_t *heap) |
| UNIV_INLINE ulint | upd_get_n_fields (const upd_t *update) |
| UNIV_INLINE upd_field_t * | upd_get_nth_field (const upd_t *update, ulint n) |
| UNIV_INLINE void | upd_field_set_field_no (upd_field_t *upd_field, ulint field_no, dict_index_t *index, trx_t *trx) |
| UNIV_INLINE const upd_field_t * | upd_get_field_by_field_no (const upd_t *update, ulint no) |
| UNIV_INLINE void | row_upd_rec_sys_fields (rec_t *rec, page_zip_des_t *page_zip, dict_index_t *index, const ulint *offsets, const trx_t *trx, roll_ptr_t roll_ptr) |
Detailed Description
Update of a row
Created 12/27/1996 Heikki Tuuri
Function Documentation
| UNIV_INLINE void row_upd_rec_sys_fields | ( | rec_t * | rec, |
| page_zip_des_t * | page_zip, | ||
| dict_index_t * | index, | ||
| const ulint * | offsets, | ||
| const trx_t * | trx, | ||
| roll_ptr_t | roll_ptr | ||
| ) |
Updates the trx id and roll ptr field in a clustered index record when a row is updated or marked deleted.
- Parameters
-
rec in/out: record page_zip in/out: compressed page whose uncompressed part will be updated, or NULL index in: clustered index offsets in: rec_get_offsets(rec, index) trx in: transaction roll_ptr in: roll ptr of the undo log record, can be 0 during IMPORT
| UNIV_INLINE upd_t* upd_create | ( | ulint | n, |
| mem_heap_t * | heap | ||
| ) |
Creates an update vector object.
- Returns
- own: update vector object
- Parameters
-
n in: number of fields heap in: heap from which memory allocated
| UNIV_INLINE void upd_field_set_field_no | ( | upd_field_t * | upd_field, |
| ulint | field_no, | ||
| dict_index_t * | index, | ||
| trx_t * | trx | ||
| ) |
Sets an index field number to be updated by an update vector field.
- Parameters
-
upd_field in: update vector field field_no in: field number in a clustered index index in: index trx in: transaction
| UNIV_INLINE const upd_field_t* upd_get_field_by_field_no | ( | const upd_t * | update, |
| ulint | no | ||
| ) |
Returns a field of an update vector by field_no.
- Returns
- update vector field, or NULL
- Parameters
-
update in: update vector no in: field_no
| UNIV_INLINE ulint upd_get_n_fields | ( | const upd_t * | update | ) |
Returns the number of fields in the update vector == number of columns to be updated by an update vector.
- Returns
- number of fields
- Parameters
-
update in: update vector
| UNIV_INLINE upd_field_t* upd_get_nth_field | ( | const upd_t * | update, |
| ulint | n | ||
| ) |
Returns the nth field of an update vector.
- Returns
- update vector field
- Parameters
-
update in: update vector n in: field position in update vector
