row0uins.cc File Reference

Fresh insert undo. More...

#include "row0uins.h"
#include "btr0btr.h"
#include "dict0boot.h"
#include "dict0crea.h"
#include "dict0dd.h"
#include "dict0dict.h"
#include "ibuf0ibuf.h"
#include "log0chkp.h"
#include "mach0data.h"
#include "que0que.h"
#include "row0log.h"
#include "row0row.h"
#include "row0undo.h"
#include "row0upd.h"
#include "row0vers.h"
#include "trx0rec.h"
#include "trx0roll.h"
#include "trx0trx.h"
#include "trx0undo.h"

Functions
static dberr_t	row_undo_ins_remove_clust_rec (undo_node_t *node)
	Removes a clustered index record. More...
static dberr_t	row_undo_ins_remove_sec_low (ulint mode, dict_index_t *index, dtuple_t *entry, que_thr_t *thr, undo_node_t *node)
	Removes a secondary index entry if found. More...
static dberr_t	row_undo_ins_remove_sec (dict_index_t *index, dtuple_t *entry, que_thr_t *thr, undo_node_t *node)
	Removes a secondary index entry from the index if found. More...
static void	row_undo_ins_parse_undo_rec (undo_node_t *node, THD *thd, MDL_ticket **mdl)
	Parses the row reference and other info in a fresh insert undo record. More...
static dberr_t	row_undo_ins_remove_multi_sec (dict_index_t *index, undo_node_t *node, que_thr_t *thr, mem_heap_t *heap)
	Removes a secondary index entry from the index, which is built on multi-value field, if found. More...
static dberr_t	row_undo_ins_remove_sec_rec (undo_node_t *node, que_thr_t *thr)
	Removes secondary index records. More...
dberr_t	row_undo_ins (undo_node_t *node, que_thr_t *thr)
	Undoes a fresh insert of a row to a table. More...

Detailed Description

Fresh insert undo.

Created 2/25/1997 Heikki Tuuri

Function Documentation

row_undo_ins()

dberr_t row_undo_ins	(	undo_node_t *	node,
		que_thr_t *	thr
	)

Undoes a fresh insert of a row to a table.

A fresh insert means that the same clustered index unique key did not have any record, even delete marked, at the time of the insert. InnoDB is eager in a rollback: if it figures out that an index record will be removed in the purge anyway, it will remove it in the rollback.

Returns

DB_SUCCESS or DB_OUT_OF_FILE_SPACE

Parameters

node	in: row undo node
thr	in: query thread

row_undo_ins_parse_undo_rec()

static void row_undo_ins_parse_undo_rec ( undo_node_t *  node, THD *  thd, MDL_ticket **  mdl  )

static

Parses the row reference and other info in a fresh insert undo record.

Parameters

[in,out]	node	row undo node
[in]	thd	THD associated with the node
[in,out]	mdl	MDL ticket or nullptr if unnecessary

row_undo_ins_remove_clust_rec()

static dberr_t row_undo_ins_remove_clust_rec ( undo_node_t *  node )

static

Removes a clustered index record.

The pcur in node was positioned on the record, now it is detached.

Returns

DB_SUCCESS or DB_OUT_OF_FILE_SPACE

Parameters

node	in: undo node

row_undo_ins_remove_multi_sec()

static dberr_t row_undo_ins_remove_multi_sec ( dict_index_t *  index, undo_node_t *  node, que_thr_t *  thr, mem_heap_t *  heap  )

static

Removes a secondary index entry from the index, which is built on multi-value field, if found.

For each value, it tries first optimistic, then pessimistic descent down the tree.

Parameters

[in,out]	index	multi-value index
[in]	node	undo node
[in]	thr	query thread
[in,out]	heap	memory heap

Returns

DB_SUCCESS or error code

row_undo_ins_remove_sec()

static dberr_t row_undo_ins_remove_sec ( dict_index_t *  index, dtuple_t *  entry, que_thr_t *  thr, undo_node_t *  node  )

static

Removes a secondary index entry from the index if found.

Tries first optimistic, then pessimistic descent down the tree.

Parameters

[in]	index	index
[in]	entry	index entry to insert
[in]	thr	query thread
[in]	node	undo node

Returns

DB_SUCCESS or DB_OUT_OF_FILE_SPACE

row_undo_ins_remove_sec_low()

static dberr_t row_undo_ins_remove_sec_low ( ulint  mode, dict_index_t *  index, dtuple_t *  entry, que_thr_t *  thr, undo_node_t *  node  )

static

Removes a secondary index entry if found.

Parameters

[in]	mode	BTR_MODIFY_LEAF or BTR_MODIFY_TREE, depending on whether we wish optimistic or pessimistic descent down the index tree
[in]	index	index
[in]	entry	index entry to remove
[in]	thr	query thread
[in]	node	undo node

Returns

DB_SUCCESS, DB_FAIL, or DB_OUT_OF_FILE_SPACE

row_undo_ins_remove_sec_rec()

static dberr_t row_undo_ins_remove_sec_rec ( undo_node_t *  node, que_thr_t *  thr  )

static

Removes secondary index records.

Returns

DB_SUCCESS or DB_OUT_OF_FILE_SPACE

Parameters

node	in/out: row undo node
thr	in: query thread