641.2.2
by Monty Taylor
InnoDB Plugin 1.0.3 |
1 |
/*****************************************************************************
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2 |
||
1999.6.1
by kalebral at gmail
update Copyright strings to a more common format to help with creating the master debian copyright file |
3 |
Copyright (C) 1996, 2010, Innobase Oy. All Rights Reserved.
|
641.2.2
by Monty Taylor
InnoDB Plugin 1.0.3 |
4 |
|
5 |
This program is free software; you can redistribute it and/or modify it under
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6 |
the terms of the GNU General Public License as published by the Free Software
|
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7 |
Foundation; version 2 of the License.
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8 |
||
9 |
This program is distributed in the hope that it will be useful, but WITHOUT
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10 |
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
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11 |
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
|
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12 |
||
13 |
You should have received a copy of the GNU General Public License along with
|
|
1802.10.2
by Monty Taylor
Update all of the copyright headers to include the correct address. |
14 |
this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
|
15 |
St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
641.2.2
by Monty Taylor
InnoDB Plugin 1.0.3 |
16 |
|
17 |
*****************************************************************************/
|
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18 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
19 |
/**************************************************//**
|
20 |
@file row/row0upd.c
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
21 |
Update of a row
|
22 |
||
23 |
Created 12/27/1996 Heikki Tuuri
|
|
24 |
*******************************************************/
|
|
25 |
||
26 |
#include "row0upd.h" |
|
27 |
||
28 |
#ifdef UNIV_NONINL
|
|
29 |
#include "row0upd.ic" |
|
30 |
#endif
|
|
31 |
||
32 |
#include "dict0dict.h" |
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
33 |
#include "trx0undo.h" |
34 |
#include "rem0rec.h" |
|
35 |
#ifndef UNIV_HOTBACKUP
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
36 |
#include "dict0boot.h" |
37 |
#include "dict0crea.h" |
|
38 |
#include "mach0data.h" |
|
39 |
#include "btr0btr.h" |
|
40 |
#include "btr0cur.h" |
|
41 |
#include "que0que.h" |
|
42 |
#include "row0ext.h" |
|
43 |
#include "row0ins.h" |
|
44 |
#include "row0sel.h" |
|
45 |
#include "row0row.h" |
|
46 |
#include "rem0cmp.h" |
|
47 |
#include "lock0lock.h" |
|
48 |
#include "log0log.h" |
|
49 |
#include "pars0sym.h" |
|
50 |
#include "eval0eval.h" |
|
51 |
#include "buf0lru.h" |
|
52 |
||
53 |
||
54 |
/* What kind of latch and lock can we assume when the control comes to
|
|
55 |
-------------------------------------------------------------------
|
|
56 |
an update node?
|
|
57 |
--------------
|
|
58 |
Efficiency of massive updates would require keeping an x-latch on a
|
|
59 |
clustered index page through many updates, and not setting an explicit
|
|
60 |
x-lock on clustered index records, as they anyway will get an implicit
|
|
61 |
x-lock when they are updated. A problem is that the read nodes in the
|
|
62 |
graph should know that they must keep the latch when passing the control
|
|
63 |
up to the update node, and not set any record lock on the record which
|
|
64 |
will be updated. Another problem occurs if the execution is stopped,
|
|
65 |
as the kernel switches to another query thread, or the transaction must
|
|
66 |
wait for a lock. Then we should be able to release the latch and, maybe,
|
|
67 |
acquire an explicit x-lock on the record.
|
|
68 |
Because this seems too complicated, we conclude that the less
|
|
69 |
efficient solution of releasing all the latches when the control is
|
|
70 |
transferred to another node, and acquiring explicit x-locks, is better. */
|
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71 |
||
72 |
/* How is a delete performed? If there is a delete without an
|
|
73 |
explicit cursor, i.e., a searched delete, there are at least
|
|
74 |
two different situations:
|
|
75 |
the implicit select cursor may run on (1) the clustered index or
|
|
76 |
on (2) a secondary index. The delete is performed by setting
|
|
77 |
the delete bit in the record and substituting the id of the
|
|
78 |
deleting transaction for the original trx id, and substituting a
|
|
79 |
new roll ptr for previous roll ptr. The old trx id and roll ptr
|
|
80 |
are saved in the undo log record. Thus, no physical changes occur
|
|
81 |
in the index tree structure at the time of the delete. Only
|
|
82 |
when the undo log is purged, the index records will be physically
|
|
83 |
deleted from the index trees.
|
|
84 |
||
85 |
The query graph executing a searched delete would consist of
|
|
86 |
a delete node which has as a subtree a select subgraph.
|
|
87 |
The select subgraph should return a (persistent) cursor
|
|
88 |
in the clustered index, placed on page which is x-latched.
|
|
89 |
The delete node should look for all secondary index records for
|
|
90 |
this clustered index entry and mark them as deleted. When is
|
|
91 |
the x-latch freed? The most efficient way for performing a
|
|
92 |
searched delete is obviously to keep the x-latch for several
|
|
93 |
steps of query graph execution. */
|
|
94 |
||
1819.9.13
by Inaam Rana
Merge Revision revid:inaam.rana@oracle.com-20100610135811-1jxs81q050wpabyc from MySQL InnoDB |
95 |
/*************************************************************************
|
1819.9.12
by Inaam Rana
Merge Revision revid:inaam.rana@oracle.com-20100608181408-c5xsjlom5olr4mxt from MySQL InnoDB |
96 |
IMPORTANT NOTE: Any operation that generates redo MUST check that there
|
97 |
is enough space in the redo log before for that operation. This is
|
|
98 |
done by calling log_free_check(). The reason for checking the
|
|
99 |
availability of the redo log space before the start of the operation is
|
|
100 |
that we MUST not hold any synchonization objects when performing the
|
|
101 |
check.
|
|
102 |
If you make a change in this module make sure that no codepath is
|
|
103 |
introduced where a call to log_free_check() is bypassed. */
|
|
104 |
||
1819.9.25
by Inaam Rana, Stewart Smith
Merge Revision revid:inaam.rana@oracle.com-20100621155209-1pu7nwq05x7tbfoo from MySQL InnoDB |
105 |
/*************************************************************************
|
106 |
IMPORTANT NOTE: Any operation that generates redo MUST check that there
|
|
107 |
is enough space in the redo log before for that operation. This is
|
|
108 |
done by calling log_free_check(). The reason for checking the
|
|
109 |
availability of the redo log space before the start of the operation is
|
|
110 |
that we MUST not hold any synchonization objects when performing the
|
|
111 |
check.
|
|
112 |
If you make a change in this module make sure that no codepath is
|
|
113 |
introduced where a call to log_free_check() is bypassed. */
|
|
114 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
115 |
/***********************************************************//**
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
116 |
Checks if an update vector changes some of the first ordering fields of an
|
117 |
index record. This is only used in foreign key checks and we can assume
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
118 |
that index does not contain column prefixes.
|
119 |
@return TRUE if changes */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
120 |
static
|
121 |
ibool
|
|
122 |
row_upd_changes_first_fields_binary( |
|
123 |
/*================================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
124 |
dtuple_t* entry, /*!< in: old value of index entry */ |
125 |
dict_index_t* index, /*!< in: index of entry */ |
|
126 |
const upd_t* update, /*!< in: update vector for the row */ |
|
127 |
ulint n); /*!< in: how many first fields to check */ |
|
128 |
||
129 |
||
130 |
/*********************************************************************//**
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
131 |
Checks if index currently is mentioned as a referenced index in a foreign
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
132 |
key constraint.
|
133 |
||
134 |
NOTE that since we do not hold dict_operation_lock when leaving the
|
|
135 |
function, it may be that the referencing table has been dropped when
|
|
136 |
we leave this function: this function is only for heuristic use!
|
|
137 |
||
138 |
@return TRUE if referenced */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
139 |
static
|
140 |
ibool
|
|
141 |
row_upd_index_is_referenced( |
|
142 |
/*========================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
143 |
dict_index_t* index, /*!< in: index */ |
144 |
trx_t* trx) /*!< in: transaction */ |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
145 |
{
|
146 |
dict_table_t* table = index->table; |
|
147 |
dict_foreign_t* foreign; |
|
148 |
ibool froze_data_dict = FALSE; |
|
149 |
ibool is_referenced = FALSE; |
|
150 |
||
151 |
if (!UT_LIST_GET_FIRST(table->referenced_list)) { |
|
152 |
||
153 |
return(FALSE); |
|
154 |
}
|
|
155 |
||
156 |
if (trx->dict_operation_lock_mode == 0) { |
|
157 |
row_mysql_freeze_data_dictionary(trx); |
|
158 |
froze_data_dict = TRUE; |
|
159 |
}
|
|
160 |
||
161 |
foreign = UT_LIST_GET_FIRST(table->referenced_list); |
|
162 |
||
163 |
while (foreign) { |
|
164 |
if (foreign->referenced_index == index) { |
|
165 |
||
166 |
is_referenced = TRUE; |
|
167 |
goto func_exit; |
|
168 |
}
|
|
169 |
||
170 |
foreign = UT_LIST_GET_NEXT(referenced_list, foreign); |
|
171 |
}
|
|
172 |
||
173 |
func_exit: |
|
174 |
if (froze_data_dict) { |
|
175 |
row_mysql_unfreeze_data_dictionary(trx); |
|
176 |
}
|
|
177 |
||
178 |
return(is_referenced); |
|
179 |
}
|
|
180 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
181 |
/*********************************************************************//**
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
182 |
Checks if possible foreign key constraints hold after a delete of the record
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
183 |
under pcur.
|
184 |
||
185 |
NOTE that this function will temporarily commit mtr and lose the
|
|
186 |
pcur position!
|
|
187 |
||
188 |
@return DB_SUCCESS or an error code */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
189 |
static
|
190 |
ulint
|
|
191 |
row_upd_check_references_constraints( |
|
192 |
/*=================================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
193 |
upd_node_t* node, /*!< in: row update node */ |
194 |
btr_pcur_t* pcur, /*!< in: cursor positioned on a record; NOTE: the |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
195 |
cursor position is lost in this function! */
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
196 |
dict_table_t* table, /*!< in: table in question */ |
197 |
dict_index_t* index, /*!< in: index of the cursor */ |
|
198 |
ulint* offsets,/*!< in/out: rec_get_offsets(pcur.rec, index) */ |
|
199 |
que_thr_t* thr, /*!< in: query thread */ |
|
200 |
mtr_t* mtr) /*!< in: mtr */ |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
201 |
{
|
202 |
dict_foreign_t* foreign; |
|
203 |
mem_heap_t* heap; |
|
204 |
dtuple_t* entry; |
|
205 |
trx_t* trx; |
|
206 |
const rec_t* rec; |
|
207 |
ulint n_ext; |
|
208 |
ulint err; |
|
209 |
ibool got_s_lock = FALSE; |
|
210 |
||
211 |
if (UT_LIST_GET_FIRST(table->referenced_list) == NULL) { |
|
212 |
||
213 |
return(DB_SUCCESS); |
|
214 |
}
|
|
215 |
||
216 |
trx = thr_get_trx(thr); |
|
217 |
||
218 |
rec = btr_pcur_get_rec(pcur); |
|
219 |
ut_ad(rec_offs_validate(rec, index, offsets)); |
|
220 |
||
221 |
heap = mem_heap_create(500); |
|
222 |
||
223 |
entry = row_rec_to_index_entry(ROW_COPY_DATA, rec, index, offsets, |
|
224 |
&n_ext, heap); |
|
225 |
||
226 |
mtr_commit(mtr); |
|
227 |
||
228 |
mtr_start(mtr); |
|
229 |
||
230 |
if (trx->dict_operation_lock_mode == 0) { |
|
231 |
got_s_lock = TRUE; |
|
232 |
||
233 |
row_mysql_freeze_data_dictionary(trx); |
|
234 |
}
|
|
235 |
||
236 |
foreign = UT_LIST_GET_FIRST(table->referenced_list); |
|
237 |
||
238 |
while (foreign) { |
|
239 |
/* Note that we may have an update which updates the index
|
|
240 |
record, but does NOT update the first fields which are
|
|
241 |
referenced in a foreign key constraint. Then the update does
|
|
242 |
NOT break the constraint. */
|
|
243 |
||
244 |
if (foreign->referenced_index == index |
|
245 |
&& (node->is_delete |
|
246 |
|| row_upd_changes_first_fields_binary( |
|
247 |
entry, index, node->update, |
|
248 |
foreign->n_fields))) { |
|
249 |
||
250 |
if (foreign->foreign_table == NULL) { |
|
251 |
dict_table_get(foreign->foreign_table_name, |
|
252 |
FALSE); |
|
253 |
}
|
|
254 |
||
255 |
if (foreign->foreign_table) { |
|
256 |
mutex_enter(&(dict_sys->mutex)); |
|
257 |
||
258 |
(foreign->foreign_table |
|
259 |
->n_foreign_key_checks_running)++; |
|
260 |
||
261 |
mutex_exit(&(dict_sys->mutex)); |
|
262 |
}
|
|
263 |
||
264 |
/* NOTE that if the thread ends up waiting for a lock
|
|
265 |
we will release dict_operation_lock temporarily!
|
|
266 |
But the counter on the table protects 'foreign' from
|
|
267 |
being dropped while the check is running. */
|
|
268 |
||
269 |
err = row_ins_check_foreign_constraint( |
|
270 |
FALSE, foreign, table, entry, thr); |
|
271 |
||
272 |
if (foreign->foreign_table) { |
|
273 |
mutex_enter(&(dict_sys->mutex)); |
|
274 |
||
275 |
ut_a(foreign->foreign_table |
|
276 |
->n_foreign_key_checks_running > 0); |
|
277 |
||
278 |
(foreign->foreign_table |
|
279 |
->n_foreign_key_checks_running)--; |
|
280 |
||
281 |
mutex_exit(&(dict_sys->mutex)); |
|
282 |
}
|
|
283 |
||
284 |
if (err != DB_SUCCESS) { |
|
285 |
||
286 |
goto func_exit; |
|
287 |
}
|
|
288 |
}
|
|
289 |
||
290 |
foreign = UT_LIST_GET_NEXT(referenced_list, foreign); |
|
291 |
}
|
|
292 |
||
293 |
err = DB_SUCCESS; |
|
294 |
||
295 |
func_exit: |
|
296 |
if (got_s_lock) { |
|
297 |
row_mysql_unfreeze_data_dictionary(trx); |
|
298 |
}
|
|
299 |
||
300 |
mem_heap_free(heap); |
|
301 |
||
302 |
return(err); |
|
303 |
}
|
|
304 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
305 |
/*********************************************************************//**
|
306 |
Creates an update node for a query graph.
|
|
307 |
@return own: update node */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
308 |
UNIV_INTERN
|
309 |
upd_node_t* |
|
310 |
upd_node_create( |
|
311 |
/*============*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
312 |
mem_heap_t* heap) /*!< in: mem heap where created */ |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
313 |
{
|
314 |
upd_node_t* node; |
|
315 |
||
2023.3.15
by Monty Taylor
More casting. |
316 |
node = static_cast<upd_node_t *>(mem_heap_alloc(heap, sizeof(upd_node_t))); |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
317 |
node->common.type = QUE_NODE_UPDATE; |
318 |
||
319 |
node->state = UPD_NODE_UPDATE_CLUSTERED; |
|
320 |
node->in_mysql_interface = FALSE; |
|
321 |
||
322 |
node->row = NULL; |
|
323 |
node->ext = NULL; |
|
324 |
node->upd_row = NULL; |
|
325 |
node->upd_ext = NULL; |
|
326 |
node->index = NULL; |
|
327 |
node->update = NULL; |
|
328 |
||
329 |
node->foreign = NULL; |
|
330 |
node->cascade_heap = NULL; |
|
331 |
node->cascade_node = NULL; |
|
332 |
||
333 |
node->select = NULL; |
|
334 |
||
335 |
node->heap = mem_heap_create(128); |
|
336 |
node->magic_n = UPD_NODE_MAGIC_N; |
|
337 |
||
338 |
node->cmpl_info = 0; |
|
339 |
||
340 |
return(node); |
|
341 |
}
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
342 |
#endif /* !UNIV_HOTBACKUP */ |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
343 |
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
344 |
/*********************************************************************//**
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
345 |
Updates the trx id and roll ptr field in a clustered index record in database
|
346 |
recovery. */
|
|
347 |
UNIV_INTERN
|
|
348 |
void
|
|
349 |
row_upd_rec_sys_fields_in_recovery( |
|
350 |
/*===============================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
351 |
rec_t* rec, /*!< in/out: record */ |
352 |
page_zip_des_t* page_zip,/*!< in/out: compressed page, or NULL */ |
|
353 |
const ulint* offsets,/*!< in: array returned by rec_get_offsets() */ |
|
354 |
ulint pos, /*!< in: TRX_ID position in rec */ |
|
355 |
trx_id_t trx_id, /*!< in: transaction id */ |
|
356 |
roll_ptr_t roll_ptr)/*!< in: roll ptr of the undo log record */ |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
357 |
{
|
358 |
ut_ad(rec_offs_validate(rec, NULL, offsets)); |
|
359 |
||
360 |
if (UNIV_LIKELY_NULL(page_zip)) { |
|
361 |
page_zip_write_trx_id_and_roll_ptr( |
|
362 |
page_zip, rec, offsets, pos, trx_id, roll_ptr); |
|
363 |
} else { |
|
364 |
byte* field; |
|
365 |
ulint len; |
|
366 |
||
367 |
field = rec_get_nth_field(rec, offsets, pos, &len); |
|
368 |
ut_ad(len == DATA_TRX_ID_LEN); |
|
369 |
#if DATA_TRX_ID + 1 != DATA_ROLL_PTR
|
|
370 |
# error "DATA_TRX_ID + 1 != DATA_ROLL_PTR"
|
|
371 |
#endif
|
|
372 |
trx_write_trx_id(field, trx_id); |
|
373 |
trx_write_roll_ptr(field + DATA_TRX_ID_LEN, roll_ptr); |
|
374 |
}
|
|
375 |
}
|
|
376 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
377 |
#ifndef UNIV_HOTBACKUP
|
378 |
/*********************************************************************//**
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
379 |
Sets the trx id or roll ptr field of a clustered index entry. */
|
380 |
UNIV_INTERN
|
|
381 |
void
|
|
382 |
row_upd_index_entry_sys_field( |
|
383 |
/*==========================*/
|
|
1819.9.197
by Marko Mäkelä, Stewart Smith
Merge Revision revid:marko.makela@oracle.com-20101103091611-a3x9p0yivkvu5u9i from MySQL InnoDB |
384 |
dtuple_t* entry, /*!< in/out: index entry, where the memory |
385 |
buffers for sys fields are already allocated:
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
386 |
the function just copies the new values to
|
387 |
them */
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
388 |
dict_index_t* index, /*!< in: clustered index */ |
389 |
ulint type, /*!< in: DATA_TRX_ID or DATA_ROLL_PTR */ |
|
1819.9.31
by Marko Mäkelä, Stewart Smith
Merge Revision revid:marko.makela@oracle.com-20100623110659-pk5bqnmo0j7hj6md from MySQL InnoDB |
390 |
ib_uint64_t val) /*!< in: value to write */ |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
391 |
{
|
392 |
dfield_t* dfield; |
|
393 |
byte* field; |
|
394 |
ulint pos; |
|
395 |
||
396 |
ut_ad(dict_index_is_clust(index)); |
|
397 |
||
398 |
pos = dict_index_get_sys_col_pos(index, type); |
|
399 |
||
400 |
dfield = dtuple_get_nth_field(entry, pos); |
|
2023.3.15
by Monty Taylor
More casting. |
401 |
field = static_cast<byte *>(dfield_get_data(dfield)); |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
402 |
|
403 |
if (type == DATA_TRX_ID) { |
|
404 |
trx_write_trx_id(field, val); |
|
405 |
} else { |
|
406 |
ut_ad(type == DATA_ROLL_PTR); |
|
407 |
trx_write_roll_ptr(field, val); |
|
408 |
}
|
|
409 |
}
|
|
410 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
411 |
/***********************************************************//**
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
412 |
Returns TRUE if row update changes size of some field in index or if some
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
413 |
field to be updated is stored externally in rec or update.
|
414 |
@return TRUE if the update changes the size of some field in index or
|
|
415 |
the field is external in rec or update */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
416 |
UNIV_INTERN
|
417 |
ibool
|
|
418 |
row_upd_changes_field_size_or_external( |
|
419 |
/*===================================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
420 |
dict_index_t* index, /*!< in: index */ |
421 |
const ulint* offsets,/*!< in: rec_get_offsets(rec, index) */ |
|
422 |
const upd_t* update) /*!< in: update vector */ |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
423 |
{
|
424 |
const upd_field_t* upd_field; |
|
425 |
const dfield_t* new_val; |
|
426 |
ulint old_len; |
|
427 |
ulint new_len; |
|
428 |
ulint n_fields; |
|
429 |
ulint i; |
|
430 |
||
431 |
ut_ad(rec_offs_validate(NULL, index, offsets)); |
|
432 |
n_fields = upd_get_n_fields(update); |
|
433 |
||
434 |
for (i = 0; i < n_fields; i++) { |
|
435 |
upd_field = upd_get_nth_field(update, i); |
|
436 |
||
437 |
new_val = &(upd_field->new_val); |
|
438 |
new_len = dfield_get_len(new_val); |
|
439 |
||
440 |
if (dfield_is_null(new_val) && !rec_offs_comp(offsets)) { |
|
441 |
/* A bug fixed on Dec 31st, 2004: we looked at the
|
|
442 |
SQL NULL size from the wrong field! We may backport
|
|
443 |
this fix also to 4.0. The merge to 5.0 will be made
|
|
444 |
manually immediately after we commit this to 4.1. */
|
|
445 |
||
446 |
new_len = dict_col_get_sql_null_size( |
|
447 |
dict_index_get_nth_col(index, |
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
448 |
upd_field->field_no), |
449 |
0); |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
450 |
}
|
451 |
||
452 |
old_len = rec_offs_nth_size(offsets, upd_field->field_no); |
|
453 |
||
454 |
if (rec_offs_comp(offsets) |
|
455 |
&& rec_offs_nth_sql_null(offsets, |
|
456 |
upd_field->field_no)) { |
|
457 |
/* Note that in the compact table format, for a
|
|
458 |
variable length field, an SQL NULL will use zero
|
|
459 |
bytes in the offset array at the start of the physical
|
|
460 |
record, but a zero-length value (empty string) will
|
|
461 |
use one byte! Thus, we cannot use update-in-place
|
|
462 |
if we update an SQL NULL varchar to an empty string! */
|
|
463 |
||
464 |
old_len = UNIV_SQL_NULL; |
|
465 |
}
|
|
466 |
||
467 |
if (dfield_is_ext(new_val) || old_len != new_len |
|
468 |
|| rec_offs_nth_extern(offsets, upd_field->field_no)) { |
|
469 |
||
470 |
return(TRUE); |
|
471 |
}
|
|
472 |
}
|
|
473 |
||
474 |
return(FALSE); |
|
475 |
}
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
476 |
#endif /* !UNIV_HOTBACKUP */ |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
477 |
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
478 |
/***********************************************************//**
|
1819.9.169
by Marko Mäkelä, Stewart Smith
Merge Revision revid:marko.makela@oracle.com-20101019060415-bj3u6ewk022mk4nr from MySQL InnoDB |
479 |
Replaces the new column values stored in the update vector to the
|
480 |
record given. No field size changes are allowed. This function is
|
|
481 |
usually invoked on a clustered index. The only use case for a
|
|
482 |
secondary index is row_ins_sec_index_entry_by_modify() or its
|
|
483 |
counterpart in ibuf_insert_to_index_page(). */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
484 |
UNIV_INTERN
|
485 |
void
|
|
486 |
row_upd_rec_in_place( |
|
487 |
/*=================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
488 |
rec_t* rec, /*!< in/out: record where replaced */ |
489 |
dict_index_t* index, /*!< in: the index the record belongs to */ |
|
490 |
const ulint* offsets,/*!< in: array returned by rec_get_offsets() */ |
|
491 |
const upd_t* update, /*!< in: update vector */ |
|
492 |
page_zip_des_t* page_zip)/*!< in: compressed page with enough space |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
493 |
available, or NULL */
|
494 |
{
|
|
495 |
const upd_field_t* upd_field; |
|
496 |
const dfield_t* new_val; |
|
497 |
ulint n_fields; |
|
498 |
ulint i; |
|
499 |
||
500 |
ut_ad(rec_offs_validate(rec, index, offsets)); |
|
501 |
||
502 |
if (rec_offs_comp(offsets)) { |
|
503 |
rec_set_info_bits_new(rec, update->info_bits); |
|
504 |
} else { |
|
505 |
rec_set_info_bits_old(rec, update->info_bits); |
|
506 |
}
|
|
507 |
||
508 |
n_fields = upd_get_n_fields(update); |
|
509 |
||
510 |
for (i = 0; i < n_fields; i++) { |
|
511 |
upd_field = upd_get_nth_field(update, i); |
|
512 |
new_val = &(upd_field->new_val); |
|
513 |
ut_ad(!dfield_is_ext(new_val) == |
|
514 |
!rec_offs_nth_extern(offsets, upd_field->field_no)); |
|
515 |
||
516 |
rec_set_nth_field(rec, offsets, upd_field->field_no, |
|
517 |
dfield_get_data(new_val), |
|
518 |
dfield_get_len(new_val)); |
|
519 |
}
|
|
520 |
||
521 |
if (UNIV_LIKELY_NULL(page_zip)) { |
|
522 |
page_zip_write_rec(page_zip, rec, index, offsets, 0); |
|
523 |
}
|
|
524 |
}
|
|
525 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
526 |
#ifndef UNIV_HOTBACKUP
|
527 |
/*********************************************************************//**
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
528 |
Writes into the redo log the values of trx id and roll ptr and enough info
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
529 |
to determine their positions within a clustered index record.
|
530 |
@return new pointer to mlog */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
531 |
UNIV_INTERN
|
532 |
byte* |
|
533 |
row_upd_write_sys_vals_to_log( |
|
534 |
/*==========================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
535 |
dict_index_t* index, /*!< in: clustered index */ |
536 |
trx_t* trx, /*!< in: transaction */ |
|
537 |
roll_ptr_t roll_ptr,/*!< in: roll ptr of the undo log record */ |
|
538 |
byte* log_ptr,/*!< pointer to a buffer of size > 20 opened |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
539 |
in mlog */
|
2023.3.29
by Monty Taylor
Added back INNOBASE_SKIP_WARNINGS for solaris. Also dealt with unused params. |
540 |
mtr_t* /*mtr __attribute__((unused))*/) /*!< in: mtr */ |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
541 |
{
|
542 |
ut_ad(dict_index_is_clust(index)); |
|
543 |
ut_ad(mtr); |
|
544 |
||
545 |
log_ptr += mach_write_compressed(log_ptr, |
|
546 |
dict_index_get_sys_col_pos( |
|
547 |
index, DATA_TRX_ID)); |
|
548 |
||
549 |
trx_write_roll_ptr(log_ptr, roll_ptr); |
|
550 |
log_ptr += DATA_ROLL_PTR_LEN; |
|
551 |
||
1819.9.31
by Marko Mäkelä, Stewart Smith
Merge Revision revid:marko.makela@oracle.com-20100623110659-pk5bqnmo0j7hj6md from MySQL InnoDB |
552 |
log_ptr += mach_ull_write_compressed(log_ptr, trx->id); |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
553 |
|
554 |
return(log_ptr); |
|
555 |
}
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
556 |
#endif /* !UNIV_HOTBACKUP */ |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
557 |
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
558 |
/*********************************************************************//**
|
559 |
Parses the log data of system field values.
|
|
560 |
@return log data end or NULL */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
561 |
UNIV_INTERN
|
562 |
byte* |
|
563 |
row_upd_parse_sys_vals( |
|
564 |
/*===================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
565 |
byte* ptr, /*!< in: buffer */ |
566 |
byte* end_ptr,/*!< in: buffer end */ |
|
567 |
ulint* pos, /*!< out: TRX_ID position in record */ |
|
568 |
trx_id_t* trx_id, /*!< out: trx id */ |
|
569 |
roll_ptr_t* roll_ptr)/*!< out: roll ptr */ |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
570 |
{
|
571 |
ptr = mach_parse_compressed(ptr, end_ptr, pos); |
|
572 |
||
573 |
if (ptr == NULL) { |
|
574 |
||
575 |
return(NULL); |
|
576 |
}
|
|
577 |
||
578 |
if (end_ptr < ptr + DATA_ROLL_PTR_LEN) { |
|
579 |
||
580 |
return(NULL); |
|
581 |
}
|
|
582 |
||
583 |
*roll_ptr = trx_read_roll_ptr(ptr); |
|
584 |
ptr += DATA_ROLL_PTR_LEN; |
|
585 |
||
1819.9.31
by Marko Mäkelä, Stewart Smith
Merge Revision revid:marko.makela@oracle.com-20100623110659-pk5bqnmo0j7hj6md from MySQL InnoDB |
586 |
ptr = mach_ull_parse_compressed(ptr, end_ptr, trx_id); |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
587 |
|
588 |
return(ptr); |
|
589 |
}
|
|
590 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
591 |
#ifndef UNIV_HOTBACKUP
|
592 |
/***********************************************************//**
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
593 |
Writes to the redo log the new values of the fields occurring in the index. */
|
594 |
UNIV_INTERN
|
|
595 |
void
|
|
596 |
row_upd_index_write_log( |
|
597 |
/*====================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
598 |
const upd_t* update, /*!< in: update vector */ |
599 |
byte* log_ptr,/*!< in: pointer to mlog buffer: must |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
600 |
contain at least MLOG_BUF_MARGIN bytes
|
601 |
of free space; the buffer is closed
|
|
602 |
within this function */
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
603 |
mtr_t* mtr) /*!< in: mtr into whose log to write */ |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
604 |
{
|
605 |
const upd_field_t* upd_field; |
|
606 |
const dfield_t* new_val; |
|
607 |
ulint len; |
|
608 |
ulint n_fields; |
|
609 |
byte* buf_end; |
|
610 |
ulint i; |
|
611 |
||
612 |
n_fields = upd_get_n_fields(update); |
|
613 |
||
614 |
buf_end = log_ptr + MLOG_BUF_MARGIN; |
|
615 |
||
616 |
mach_write_to_1(log_ptr, update->info_bits); |
|
617 |
log_ptr++; |
|
618 |
log_ptr += mach_write_compressed(log_ptr, n_fields); |
|
619 |
||
620 |
for (i = 0; i < n_fields; i++) { |
|
621 |
||
622 |
#if MLOG_BUF_MARGIN <= 30
|
|
623 |
# error "MLOG_BUF_MARGIN <= 30"
|
|
624 |
#endif
|
|
625 |
||
626 |
if (log_ptr + 30 > buf_end) { |
|
627 |
mlog_close(mtr, log_ptr); |
|
628 |
||
629 |
log_ptr = mlog_open(mtr, MLOG_BUF_MARGIN); |
|
630 |
buf_end = log_ptr + MLOG_BUF_MARGIN; |
|
631 |
}
|
|
632 |
||
633 |
upd_field = upd_get_nth_field(update, i); |
|
634 |
||
635 |
new_val = &(upd_field->new_val); |
|
636 |
||
637 |
len = dfield_get_len(new_val); |
|
638 |
||
639 |
log_ptr += mach_write_compressed(log_ptr, upd_field->field_no); |
|
640 |
log_ptr += mach_write_compressed(log_ptr, len); |
|
641 |
||
642 |
if (len != UNIV_SQL_NULL) { |
|
643 |
if (log_ptr + len < buf_end) { |
|
644 |
memcpy(log_ptr, dfield_get_data(new_val), len); |
|
645 |
||
646 |
log_ptr += len; |
|
647 |
} else { |
|
648 |
mlog_close(mtr, log_ptr); |
|
649 |
||
650 |
mlog_catenate_string(mtr, |
|
2023.3.15
by Monty Taylor
More casting. |
651 |
static_cast<byte *>(dfield_get_data(new_val)), |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
652 |
len); |
653 |
||
654 |
log_ptr = mlog_open(mtr, MLOG_BUF_MARGIN); |
|
655 |
buf_end = log_ptr + MLOG_BUF_MARGIN; |
|
656 |
}
|
|
657 |
}
|
|
658 |
}
|
|
659 |
||
660 |
mlog_close(mtr, log_ptr); |
|
661 |
}
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
662 |
#endif /* !UNIV_HOTBACKUP */ |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
663 |
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
664 |
/*********************************************************************//**
|
665 |
Parses the log data written by row_upd_index_write_log.
|
|
666 |
@return log data end or NULL */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
667 |
UNIV_INTERN
|
668 |
byte* |
|
669 |
row_upd_index_parse( |
|
670 |
/*================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
671 |
byte* ptr, /*!< in: buffer */ |
672 |
byte* end_ptr,/*!< in: buffer end */ |
|
673 |
mem_heap_t* heap, /*!< in: memory heap where update vector is |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
674 |
built */
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
675 |
upd_t** update_out)/*!< out: update vector */ |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
676 |
{
|
677 |
upd_t* update; |
|
678 |
upd_field_t* upd_field; |
|
679 |
dfield_t* new_val; |
|
680 |
ulint len; |
|
681 |
ulint n_fields; |
|
682 |
ulint info_bits; |
|
683 |
ulint i; |
|
684 |
||
685 |
if (end_ptr < ptr + 1) { |
|
686 |
||
687 |
return(NULL); |
|
688 |
}
|
|
689 |
||
690 |
info_bits = mach_read_from_1(ptr); |
|
691 |
ptr++; |
|
692 |
ptr = mach_parse_compressed(ptr, end_ptr, &n_fields); |
|
693 |
||
694 |
if (ptr == NULL) { |
|
695 |
||
696 |
return(NULL); |
|
697 |
}
|
|
698 |
||
699 |
update = upd_create(n_fields, heap); |
|
700 |
update->info_bits = info_bits; |
|
701 |
||
702 |
for (i = 0; i < n_fields; i++) { |
|
703 |
ulint field_no; |
|
704 |
upd_field = upd_get_nth_field(update, i); |
|
705 |
new_val = &(upd_field->new_val); |
|
706 |
||
707 |
ptr = mach_parse_compressed(ptr, end_ptr, &field_no); |
|
708 |
||
709 |
if (ptr == NULL) { |
|
710 |
||
711 |
return(NULL); |
|
712 |
}
|
|
713 |
||
714 |
upd_field->field_no = field_no; |
|
715 |
||
716 |
ptr = mach_parse_compressed(ptr, end_ptr, &len); |
|
717 |
||
718 |
if (ptr == NULL) { |
|
719 |
||
720 |
return(NULL); |
|
721 |
}
|
|
722 |
||
723 |
if (len != UNIV_SQL_NULL) { |
|
724 |
||
725 |
if (end_ptr < ptr + len) { |
|
726 |
||
727 |
return(NULL); |
|
728 |
}
|
|
729 |
||
730 |
dfield_set_data(new_val, |
|
731 |
mem_heap_dup(heap, ptr, len), len); |
|
732 |
ptr += len; |
|
733 |
} else { |
|
734 |
dfield_set_null(new_val); |
|
735 |
}
|
|
736 |
}
|
|
737 |
||
738 |
*update_out = update; |
|
739 |
||
740 |
return(ptr); |
|
741 |
}
|
|
742 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
743 |
#ifndef UNIV_HOTBACKUP
|
744 |
/***************************************************************//**
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
745 |
Builds an update vector from those fields which in a secondary index entry
|
746 |
differ from a record that has the equal ordering fields. NOTE: we compare
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
747 |
the fields as binary strings!
|
748 |
@return own: update vector of differing fields */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
749 |
UNIV_INTERN
|
750 |
upd_t* |
|
751 |
row_upd_build_sec_rec_difference_binary( |
|
752 |
/*====================================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
753 |
dict_index_t* index, /*!< in: index */ |
754 |
const dtuple_t* entry, /*!< in: entry to insert */ |
|
755 |
const rec_t* rec, /*!< in: secondary index record */ |
|
756 |
trx_t* trx, /*!< in: transaction */ |
|
757 |
mem_heap_t* heap) /*!< in: memory heap from which allocated */ |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
758 |
{
|
759 |
upd_field_t* upd_field; |
|
760 |
const dfield_t* dfield; |
|
761 |
const byte* data; |
|
762 |
ulint len; |
|
763 |
upd_t* update; |
|
764 |
ulint n_diff; |
|
765 |
ulint i; |
|
766 |
ulint offsets_[REC_OFFS_SMALL_SIZE]; |
|
767 |
const ulint* offsets; |
|
768 |
rec_offs_init(offsets_); |
|
769 |
||
770 |
/* This function is used only for a secondary index */
|
|
771 |
ut_a(!dict_index_is_clust(index)); |
|
772 |
||
773 |
update = upd_create(dtuple_get_n_fields(entry), heap); |
|
774 |
||
775 |
n_diff = 0; |
|
776 |
offsets = rec_get_offsets(rec, index, offsets_, |
|
777 |
ULINT_UNDEFINED, &heap); |
|
778 |
||
779 |
for (i = 0; i < dtuple_get_n_fields(entry); i++) { |
|
780 |
||
781 |
data = rec_get_nth_field(rec, offsets, i, &len); |
|
782 |
||
783 |
dfield = dtuple_get_nth_field(entry, i); |
|
784 |
||
785 |
/* NOTE that it may be that len != dfield_get_len(dfield) if we
|
|
786 |
are updating in a character set and collation where strings of
|
|
787 |
different length can be equal in an alphabetical comparison,
|
|
788 |
and also in the case where we have a column prefix index
|
|
789 |
and the last characters in the index field are spaces; the
|
|
790 |
latter case probably caused the assertion failures reported at
|
|
791 |
row0upd.c line 713 in versions 4.0.14 - 4.0.16. */
|
|
792 |
||
793 |
/* NOTE: we compare the fields as binary strings!
|
|
794 |
(No collation) */
|
|
795 |
||
796 |
if (!dfield_data_is_binary_equal(dfield, len, data)) { |
|
797 |
||
798 |
upd_field = upd_get_nth_field(update, n_diff); |
|
799 |
||
800 |
dfield_copy(&(upd_field->new_val), dfield); |
|
801 |
||
802 |
upd_field_set_field_no(upd_field, i, index, trx); |
|
803 |
||
804 |
n_diff++; |
|
805 |
}
|
|
806 |
}
|
|
807 |
||
808 |
update->n_fields = n_diff; |
|
809 |
||
810 |
return(update); |
|
811 |
}
|
|
812 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
813 |
/***************************************************************//**
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
814 |
Builds an update vector from those fields, excluding the roll ptr and
|
815 |
trx id fields, which in an index entry differ from a record that has
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
816 |
the equal ordering fields. NOTE: we compare the fields as binary strings!
|
817 |
@return own: update vector of differing fields, excluding roll ptr and
|
|
818 |
trx id */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
819 |
UNIV_INTERN
|
820 |
upd_t* |
|
821 |
row_upd_build_difference_binary( |
|
822 |
/*============================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
823 |
dict_index_t* index, /*!< in: clustered index */ |
824 |
const dtuple_t* entry, /*!< in: entry to insert */ |
|
825 |
const rec_t* rec, /*!< in: clustered index record */ |
|
826 |
trx_t* trx, /*!< in: transaction */ |
|
827 |
mem_heap_t* heap) /*!< in: memory heap from which allocated */ |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
828 |
{
|
829 |
upd_field_t* upd_field; |
|
830 |
const dfield_t* dfield; |
|
831 |
const byte* data; |
|
832 |
ulint len; |
|
833 |
upd_t* update; |
|
834 |
ulint n_diff; |
|
835 |
ulint roll_ptr_pos; |
|
836 |
ulint trx_id_pos; |
|
837 |
ulint i; |
|
838 |
ulint offsets_[REC_OFFS_NORMAL_SIZE]; |
|
839 |
const ulint* offsets; |
|
840 |
rec_offs_init(offsets_); |
|
841 |
||
842 |
/* This function is used only for a clustered index */
|
|
843 |
ut_a(dict_index_is_clust(index)); |
|
844 |
||
845 |
update = upd_create(dtuple_get_n_fields(entry), heap); |
|
846 |
||
847 |
n_diff = 0; |
|
848 |
||
849 |
roll_ptr_pos = dict_index_get_sys_col_pos(index, DATA_ROLL_PTR); |
|
850 |
trx_id_pos = dict_index_get_sys_col_pos(index, DATA_TRX_ID); |
|
851 |
||
852 |
offsets = rec_get_offsets(rec, index, offsets_, |
|
853 |
ULINT_UNDEFINED, &heap); |
|
854 |
||
855 |
for (i = 0; i < dtuple_get_n_fields(entry); i++) { |
|
856 |
||
857 |
data = rec_get_nth_field(rec, offsets, i, &len); |
|
858 |
||
859 |
dfield = dtuple_get_nth_field(entry, i); |
|
860 |
||
861 |
/* NOTE: we compare the fields as binary strings!
|
|
862 |
(No collation) */
|
|
863 |
||
864 |
if (i == trx_id_pos || i == roll_ptr_pos) { |
|
865 |
||
866 |
goto skip_compare; |
|
867 |
}
|
|
868 |
||
869 |
if (UNIV_UNLIKELY(!dfield_is_ext(dfield) |
|
870 |
!= !rec_offs_nth_extern(offsets, i)) |
|
871 |
|| !dfield_data_is_binary_equal(dfield, len, data)) { |
|
872 |
||
873 |
upd_field = upd_get_nth_field(update, n_diff); |
|
874 |
||
875 |
dfield_copy(&(upd_field->new_val), dfield); |
|
876 |
||
877 |
upd_field_set_field_no(upd_field, i, index, trx); |
|
878 |
||
879 |
n_diff++; |
|
880 |
}
|
|
881 |
skip_compare: |
|
882 |
;
|
|
883 |
}
|
|
884 |
||
885 |
update->n_fields = n_diff; |
|
886 |
||
887 |
return(update); |
|
888 |
}
|
|
889 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
890 |
/***********************************************************//**
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
891 |
Fetch a prefix of an externally stored column. This is similar
|
892 |
to row_ext_lookup(), but the row_ext_t holds the old values
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
893 |
of the column and must not be poisoned with the new values.
|
894 |
@return BLOB prefix */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
895 |
static
|
896 |
byte* |
|
897 |
row_upd_ext_fetch( |
|
898 |
/*==============*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
899 |
const byte* data, /*!< in: 'internally' stored part of the |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
900 |
field containing also the reference to
|
901 |
the external part */
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
902 |
ulint local_len, /*!< in: length of data, in bytes */ |
903 |
ulint zip_size, /*!< in: nonzero=compressed BLOB |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
904 |
page size, zero for uncompressed
|
905 |
BLOBs */
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
906 |
ulint* len, /*!< in: length of prefix to fetch; |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
907 |
out: fetched length of the prefix */
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
908 |
mem_heap_t* heap) /*!< in: heap where to allocate */ |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
909 |
{
|
2023.3.15
by Monty Taylor
More casting. |
910 |
byte* buf = static_cast<byte *>(mem_heap_alloc(heap, *len)); |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
911 |
|
912 |
*len = btr_copy_externally_stored_field_prefix(buf, *len, |
|
913 |
zip_size, |
|
914 |
data, local_len); |
|
641.2.1
by Monty Taylor
InnoDB Plugin 1.0.2 |
915 |
/* We should never update records containing a half-deleted BLOB. */
|
916 |
ut_a(*len); |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
917 |
|
918 |
return(buf); |
|
919 |
}
|
|
920 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
921 |
/***********************************************************//**
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
922 |
Replaces the new column value stored in the update vector in
|
923 |
the given index entry field. */
|
|
924 |
static
|
|
925 |
void
|
|
926 |
row_upd_index_replace_new_col_val( |
|
927 |
/*==============================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
928 |
dfield_t* dfield, /*!< in/out: data field |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
929 |
of the index entry */
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
930 |
const dict_field_t* field, /*!< in: index field */ |
931 |
const dict_col_t* col, /*!< in: field->col */ |
|
932 |
const upd_field_t* uf, /*!< in: update field */ |
|
933 |
mem_heap_t* heap, /*!< in: memory heap for allocating |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
934 |
and copying the new value */
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
935 |
ulint zip_size)/*!< in: compressed page |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
936 |
size of the table, or 0 */
|
937 |
{
|
|
938 |
ulint len; |
|
939 |
const byte* data; |
|
940 |
||
941 |
dfield_copy_data(dfield, &uf->new_val); |
|
942 |
||
943 |
if (dfield_is_null(dfield)) { |
|
944 |
return; |
|
945 |
}
|
|
946 |
||
947 |
len = dfield_get_len(dfield); |
|
2023.3.15
by Monty Taylor
More casting. |
948 |
data = static_cast<const byte *>(dfield_get_data(dfield)); |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
949 |
|
950 |
if (field->prefix_len > 0) { |
|
951 |
ibool fetch_ext = dfield_is_ext(dfield) |
|
952 |
&& len < (ulint) field->prefix_len |
|
953 |
+ BTR_EXTERN_FIELD_REF_SIZE; |
|
954 |
||
955 |
if (fetch_ext) { |
|
956 |
ulint l = len; |
|
957 |
||
958 |
len = field->prefix_len; |
|
959 |
||
960 |
data = row_upd_ext_fetch(data, l, zip_size, |
|
961 |
&len, heap); |
|
962 |
}
|
|
963 |
||
964 |
len = dtype_get_at_most_n_mbchars(col->prtype, |
|
1819.9.36
by Marko Mäkelä, Stewart Smith
Merge Revision revid:marko.makela@oracle.com-20100629113248-fvl48lnzr44z94gg from MySQL InnoDB |
965 |
col->mbminmaxlen, |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
966 |
field->prefix_len, len, |
967 |
(const char*) data); |
|
968 |
||
969 |
dfield_set_data(dfield, data, len); |
|
970 |
||
971 |
if (!fetch_ext) { |
|
972 |
dfield_dup(dfield, heap); |
|
973 |
}
|
|
974 |
||
975 |
return; |
|
976 |
}
|
|
977 |
||
978 |
switch (uf->orig_len) { |
|
979 |
byte* buf; |
|
980 |
case BTR_EXTERN_FIELD_REF_SIZE: |
|
981 |
/* Restore the original locally stored
|
|
982 |
part of the column. In the undo log,
|
|
983 |
InnoDB writes a longer prefix of externally
|
|
984 |
stored columns, so that column prefixes
|
|
985 |
in secondary indexes can be reconstructed. */
|
|
986 |
dfield_set_data(dfield, |
|
987 |
data + len - BTR_EXTERN_FIELD_REF_SIZE, |
|
988 |
BTR_EXTERN_FIELD_REF_SIZE); |
|
989 |
dfield_set_ext(dfield); |
|
990 |
/* fall through */
|
|
991 |
case 0: |
|
992 |
dfield_dup(dfield, heap); |
|
993 |
break; |
|
994 |
default: |
|
995 |
/* Reconstruct the original locally
|
|
996 |
stored part of the column. The data
|
|
997 |
will have to be copied. */
|
|
998 |
ut_a(uf->orig_len > BTR_EXTERN_FIELD_REF_SIZE); |
|
2023.3.15
by Monty Taylor
More casting. |
999 |
buf = static_cast<byte *>(mem_heap_alloc(heap, uf->orig_len)); |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1000 |
/* Copy the locally stored prefix. */
|
1001 |
memcpy(buf, data, |
|
1002 |
uf->orig_len - BTR_EXTERN_FIELD_REF_SIZE); |
|
1003 |
/* Copy the BLOB pointer. */
|
|
1004 |
memcpy(buf + uf->orig_len - BTR_EXTERN_FIELD_REF_SIZE, |
|
1005 |
data + len - BTR_EXTERN_FIELD_REF_SIZE, |
|
1006 |
BTR_EXTERN_FIELD_REF_SIZE); |
|
1007 |
||
1008 |
dfield_set_data(dfield, buf, uf->orig_len); |
|
1009 |
dfield_set_ext(dfield); |
|
1010 |
break; |
|
1011 |
}
|
|
1012 |
}
|
|
1013 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1014 |
/***********************************************************//**
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1015 |
Replaces the new column values stored in the update vector to the index entry
|
1016 |
given. */
|
|
1017 |
UNIV_INTERN
|
|
1018 |
void
|
|
1019 |
row_upd_index_replace_new_col_vals_index_pos( |
|
1020 |
/*=========================================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1021 |
dtuple_t* entry, /*!< in/out: index entry where replaced; |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1022 |
the clustered index record must be
|
1023 |
covered by a lock or a page latch to
|
|
1024 |
prevent deletion (rollback or purge) */
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1025 |
dict_index_t* index, /*!< in: index; NOTE that this may also be a |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1026 |
non-clustered index */
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1027 |
const upd_t* update, /*!< in: an update vector built for the index so |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1028 |
that the field number in an upd_field is the
|
1029 |
index position */
|
|
1030 |
ibool order_only, |
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1031 |
/*!< in: if TRUE, limit the replacement to
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1032 |
ordering fields of index; note that this
|
1033 |
does not work for non-clustered indexes. */
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1034 |
mem_heap_t* heap) /*!< in: memory heap for allocating and |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1035 |
copying the new values */
|
1036 |
{
|
|
1037 |
ulint i; |
|
1038 |
ulint n_fields; |
|
1039 |
const ulint zip_size = dict_table_zip_size(index->table); |
|
1040 |
||
1041 |
ut_ad(index); |
|
1042 |
||
1043 |
dtuple_set_info_bits(entry, update->info_bits); |
|
1044 |
||
1045 |
if (order_only) { |
|
1046 |
n_fields = dict_index_get_n_unique(index); |
|
1047 |
} else { |
|
1048 |
n_fields = dict_index_get_n_fields(index); |
|
1049 |
}
|
|
1050 |
||
1051 |
for (i = 0; i < n_fields; i++) { |
|
1052 |
const dict_field_t* field; |
|
1053 |
const dict_col_t* col; |
|
1054 |
const upd_field_t* uf; |
|
1055 |
||
1056 |
field = dict_index_get_nth_field(index, i); |
|
1057 |
col = dict_field_get_col(field); |
|
1058 |
uf = upd_get_field_by_field_no(update, i); |
|
1059 |
||
1060 |
if (uf) { |
|
1061 |
row_upd_index_replace_new_col_val( |
|
1062 |
dtuple_get_nth_field(entry, i), |
|
1063 |
field, col, uf, heap, zip_size); |
|
1064 |
}
|
|
1065 |
}
|
|
1066 |
}
|
|
1067 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1068 |
/***********************************************************//**
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1069 |
Replaces the new column values stored in the update vector to the index entry
|
1070 |
given. */
|
|
1071 |
UNIV_INTERN
|
|
1072 |
void
|
|
1073 |
row_upd_index_replace_new_col_vals( |
|
1074 |
/*===============================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1075 |
dtuple_t* entry, /*!< in/out: index entry where replaced; |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1076 |
the clustered index record must be
|
1077 |
covered by a lock or a page latch to
|
|
1078 |
prevent deletion (rollback or purge) */
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1079 |
dict_index_t* index, /*!< in: index; NOTE that this may also be a |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1080 |
non-clustered index */
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1081 |
const upd_t* update, /*!< in: an update vector built for the |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1082 |
CLUSTERED index so that the field number in
|
1083 |
an upd_field is the clustered index position */
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1084 |
mem_heap_t* heap) /*!< in: memory heap for allocating and |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1085 |
copying the new values */
|
1086 |
{
|
|
1087 |
ulint i; |
|
1088 |
const dict_index_t* clust_index |
|
1089 |
= dict_table_get_first_index(index->table); |
|
1090 |
const ulint zip_size |
|
1091 |
= dict_table_zip_size(index->table); |
|
1092 |
||
1093 |
dtuple_set_info_bits(entry, update->info_bits); |
|
1094 |
||
1095 |
for (i = 0; i < dict_index_get_n_fields(index); i++) { |
|
1096 |
const dict_field_t* field; |
|
1097 |
const dict_col_t* col; |
|
1098 |
const upd_field_t* uf; |
|
1099 |
||
1100 |
field = dict_index_get_nth_field(index, i); |
|
1101 |
col = dict_field_get_col(field); |
|
1102 |
uf = upd_get_field_by_field_no( |
|
1103 |
update, dict_col_get_clust_pos(col, clust_index)); |
|
1104 |
||
1105 |
if (uf) { |
|
1106 |
row_upd_index_replace_new_col_val( |
|
1107 |
dtuple_get_nth_field(entry, i), |
|
1108 |
field, col, uf, heap, zip_size); |
|
1109 |
}
|
|
1110 |
}
|
|
1111 |
}
|
|
1112 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1113 |
/***********************************************************//**
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1114 |
Replaces the new column values stored in the update vector. */
|
1115 |
UNIV_INTERN
|
|
1116 |
void
|
|
1117 |
row_upd_replace( |
|
1118 |
/*============*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1119 |
dtuple_t* row, /*!< in/out: row where replaced, |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1120 |
indexed by col_no;
|
1121 |
the clustered index record must be
|
|
1122 |
covered by a lock or a page latch to
|
|
1123 |
prevent deletion (rollback or purge) */
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1124 |
row_ext_t** ext, /*!< out, own: NULL, or externally |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1125 |
stored column prefixes */
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1126 |
const dict_index_t* index, /*!< in: clustered index */ |
1127 |
const upd_t* update, /*!< in: an update vector built for the |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1128 |
clustered index */
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1129 |
mem_heap_t* heap) /*!< in: memory heap */ |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1130 |
{
|
1131 |
ulint col_no; |
|
1132 |
ulint i; |
|
1133 |
ulint n_cols; |
|
1134 |
ulint n_ext_cols; |
|
1135 |
ulint* ext_cols; |
|
1136 |
const dict_table_t* table; |
|
1137 |
||
1138 |
ut_ad(row); |
|
1139 |
ut_ad(ext); |
|
1140 |
ut_ad(index); |
|
1141 |
ut_ad(dict_index_is_clust(index)); |
|
1142 |
ut_ad(update); |
|
1143 |
ut_ad(heap); |
|
1144 |
||
1145 |
n_cols = dtuple_get_n_fields(row); |
|
1146 |
table = index->table; |
|
1147 |
ut_ad(n_cols == dict_table_get_n_cols(table)); |
|
1148 |
||
2023.3.15
by Monty Taylor
More casting. |
1149 |
ext_cols = static_cast<ulint *>(mem_heap_alloc(heap, n_cols * sizeof *ext_cols)); |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1150 |
n_ext_cols = 0; |
1151 |
||
1152 |
dtuple_set_info_bits(row, update->info_bits); |
|
1153 |
||
1154 |
for (col_no = 0; col_no < n_cols; col_no++) { |
|
1155 |
||
1156 |
const dict_col_t* col |
|
1157 |
= dict_table_get_nth_col(table, col_no); |
|
1158 |
const ulint clust_pos |
|
1159 |
= dict_col_get_clust_pos(col, index); |
|
1160 |
dfield_t* dfield; |
|
1161 |
||
1162 |
if (UNIV_UNLIKELY(clust_pos == ULINT_UNDEFINED)) { |
|
1163 |
||
1164 |
continue; |
|
1165 |
}
|
|
1166 |
||
1167 |
dfield = dtuple_get_nth_field(row, col_no); |
|
1168 |
||
1169 |
for (i = 0; i < upd_get_n_fields(update); i++) { |
|
1170 |
||
1171 |
const upd_field_t* upd_field |
|
1172 |
= upd_get_nth_field(update, i); |
|
1173 |
||
1174 |
if (upd_field->field_no != clust_pos) { |
|
1175 |
||
1176 |
continue; |
|
1177 |
}
|
|
1178 |
||
1179 |
dfield_copy_data(dfield, &upd_field->new_val); |
|
1180 |
break; |
|
1181 |
}
|
|
1182 |
||
1183 |
if (dfield_is_ext(dfield) && col->ord_part) { |
|
1184 |
ext_cols[n_ext_cols++] = col_no; |
|
1185 |
}
|
|
1186 |
}
|
|
1187 |
||
1188 |
if (n_ext_cols) { |
|
1189 |
*ext = row_ext_create(n_ext_cols, ext_cols, row, |
|
1190 |
dict_table_zip_size(table), heap); |
|
1191 |
} else { |
|
1192 |
*ext = NULL; |
|
1193 |
}
|
|
1194 |
}
|
|
1195 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1196 |
/***********************************************************//**
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1197 |
Checks if an update vector changes an ordering field of an index record.
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1198 |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1199 |
This function is fast if the update vector is short or the number of ordering
|
1200 |
fields in the index is small. Otherwise, this can be quadratic.
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1201 |
NOTE: we compare the fields as binary strings!
|
1202 |
@return TRUE if update vector changes an ordering field in the index record */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1203 |
UNIV_INTERN
|
1204 |
ibool
|
|
1205 |
row_upd_changes_ord_field_binary( |
|
1206 |
/*=============================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1207 |
const dtuple_t* row, /*!< in: old value of row, or NULL if the |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1208 |
row and the data values in update are not
|
1209 |
known when this function is called, e.g., at
|
|
1210 |
compile time */
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1211 |
dict_index_t* index, /*!< in: index of the record */ |
1212 |
const upd_t* update) /*!< in: update vector for the row; NOTE: the |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1213 |
field numbers in this MUST be clustered index
|
1214 |
positions! */
|
|
1215 |
{
|
|
1216 |
ulint n_unique; |
|
1217 |
ulint n_upd_fields; |
|
1218 |
ulint i, j; |
|
1219 |
dict_index_t* clust_index; |
|
1220 |
||
1221 |
ut_ad(update && index); |
|
1222 |
||
1223 |
n_unique = dict_index_get_n_unique(index); |
|
1224 |
n_upd_fields = upd_get_n_fields(update); |
|
1225 |
||
1226 |
clust_index = dict_table_get_first_index(index->table); |
|
1227 |
||
1228 |
for (i = 0; i < n_unique; i++) { |
|
1229 |
||
1230 |
const dict_field_t* ind_field; |
|
1231 |
const dict_col_t* col; |
|
1232 |
ulint col_pos; |
|
1233 |
ulint col_no; |
|
1234 |
||
1235 |
ind_field = dict_index_get_nth_field(index, i); |
|
1236 |
col = dict_field_get_col(ind_field); |
|
1237 |
col_pos = dict_col_get_clust_pos(col, clust_index); |
|
1238 |
col_no = dict_col_get_no(col); |
|
1239 |
||
1240 |
for (j = 0; j < n_upd_fields; j++) { |
|
1241 |
||
1242 |
const upd_field_t* upd_field |
|
1243 |
= upd_get_nth_field(update, j); |
|
1244 |
||
1245 |
/* Note that if the index field is a column prefix
|
|
1246 |
then it may be that row does not contain an externally
|
|
1247 |
stored part of the column value, and we cannot compare
|
|
1248 |
the datas */
|
|
1249 |
||
1250 |
if (col_pos == upd_field->field_no |
|
1251 |
&& (row == NULL |
|
1252 |
|| ind_field->prefix_len > 0 |
|
1253 |
|| !dfield_datas_are_binary_equal( |
|
1254 |
dtuple_get_nth_field(row, col_no), |
|
1255 |
&(upd_field->new_val)))) { |
|
1256 |
||
1257 |
return(TRUE); |
|
1258 |
}
|
|
1259 |
}
|
|
1260 |
}
|
|
1261 |
||
1262 |
return(FALSE); |
|
1263 |
}
|
|
1264 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1265 |
/***********************************************************//**
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1266 |
Checks if an update vector changes an ordering field of an index record.
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1267 |
NOTE: we compare the fields as binary strings!
|
1268 |
@return TRUE if update vector may change an ordering field in an index
|
|
1269 |
record */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1270 |
UNIV_INTERN
|
1271 |
ibool
|
|
1272 |
row_upd_changes_some_index_ord_field_binary( |
|
1273 |
/*========================================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1274 |
const dict_table_t* table, /*!< in: table */ |
1275 |
const upd_t* update) /*!< in: update vector for the row */ |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1276 |
{
|
1277 |
upd_field_t* upd_field; |
|
1278 |
dict_index_t* index; |
|
1279 |
ulint i; |
|
1280 |
||
1281 |
index = dict_table_get_first_index(table); |
|
1282 |
||
1283 |
for (i = 0; i < upd_get_n_fields(update); i++) { |
|
1284 |
||
1285 |
upd_field = upd_get_nth_field(update, i); |
|
1286 |
||
1287 |
if (dict_field_get_col(dict_index_get_nth_field( |
|
1288 |
index, upd_field->field_no)) |
|
1289 |
->ord_part) { |
|
1290 |
||
1291 |
return(TRUE); |
|
1292 |
}
|
|
1293 |
}
|
|
1294 |
||
1295 |
return(FALSE); |
|
1296 |
}
|
|
1297 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1298 |
/***********************************************************//**
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1299 |
Checks if an update vector changes some of the first ordering fields of an
|
1300 |
index record. This is only used in foreign key checks and we can assume
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1301 |
that index does not contain column prefixes.
|
1302 |
@return TRUE if changes */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1303 |
static
|
1304 |
ibool
|
|
1305 |
row_upd_changes_first_fields_binary( |
|
1306 |
/*================================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1307 |
dtuple_t* entry, /*!< in: index entry */ |
1308 |
dict_index_t* index, /*!< in: index of entry */ |
|
1309 |
const upd_t* update, /*!< in: update vector for the row */ |
|
1310 |
ulint n) /*!< in: how many first fields to check */ |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1311 |
{
|
1312 |
ulint n_upd_fields; |
|
1313 |
ulint i, j; |
|
1314 |
dict_index_t* clust_index; |
|
1315 |
||
1316 |
ut_ad(update && index); |
|
1317 |
ut_ad(n <= dict_index_get_n_fields(index)); |
|
1318 |
||
1319 |
n_upd_fields = upd_get_n_fields(update); |
|
1320 |
clust_index = dict_table_get_first_index(index->table); |
|
1321 |
||
1322 |
for (i = 0; i < n; i++) { |
|
1323 |
||
1324 |
const dict_field_t* ind_field; |
|
1325 |
const dict_col_t* col; |
|
1326 |
ulint col_pos; |
|
1327 |
||
1328 |
ind_field = dict_index_get_nth_field(index, i); |
|
1329 |
col = dict_field_get_col(ind_field); |
|
1330 |
col_pos = dict_col_get_clust_pos(col, clust_index); |
|
1331 |
||
1332 |
ut_a(ind_field->prefix_len == 0); |
|
1333 |
||
1334 |
for (j = 0; j < n_upd_fields; j++) { |
|
1335 |
||
1336 |
upd_field_t* upd_field |
|
1337 |
= upd_get_nth_field(update, j); |
|
1338 |
||
1339 |
if (col_pos == upd_field->field_no |
|
1340 |
&& !dfield_datas_are_binary_equal( |
|
1341 |
dtuple_get_nth_field(entry, i), |
|
1342 |
&(upd_field->new_val))) { |
|
1343 |
||
1344 |
return(TRUE); |
|
1345 |
}
|
|
1346 |
}
|
|
1347 |
}
|
|
1348 |
||
1349 |
return(FALSE); |
|
1350 |
}
|
|
1351 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1352 |
/*********************************************************************//**
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1353 |
Copies the column values from a record. */
|
1354 |
UNIV_INLINE
|
|
1355 |
void
|
|
1356 |
row_upd_copy_columns( |
|
1357 |
/*=================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1358 |
rec_t* rec, /*!< in: record in a clustered index */ |
1359 |
const ulint* offsets,/*!< in: array returned by rec_get_offsets() */ |
|
1360 |
sym_node_t* column) /*!< in: first column in a column list, or |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1361 |
NULL */
|
1362 |
{
|
|
1363 |
byte* data; |
|
1364 |
ulint len; |
|
1365 |
||
1366 |
while (column) { |
|
1367 |
data = rec_get_nth_field(rec, offsets, |
|
1368 |
column->field_nos[SYM_CLUST_FIELD_NO], |
|
1369 |
&len); |
|
1370 |
eval_node_copy_and_alloc_val(column, data, len); |
|
1371 |
||
1372 |
column = UT_LIST_GET_NEXT(col_var_list, column); |
|
1373 |
}
|
|
1374 |
}
|
|
1375 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1376 |
/*********************************************************************//**
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1377 |
Calculates the new values for fields to update. Note that row_upd_copy_columns
|
1378 |
must have been called first. */
|
|
1379 |
UNIV_INLINE
|
|
1380 |
void
|
|
1381 |
row_upd_eval_new_vals( |
|
1382 |
/*==================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1383 |
upd_t* update) /*!< in/out: update vector */ |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1384 |
{
|
1385 |
que_node_t* exp; |
|
1386 |
upd_field_t* upd_field; |
|
1387 |
ulint n_fields; |
|
1388 |
ulint i; |
|
1389 |
||
1390 |
n_fields = upd_get_n_fields(update); |
|
1391 |
||
1392 |
for (i = 0; i < n_fields; i++) { |
|
1393 |
upd_field = upd_get_nth_field(update, i); |
|
1394 |
||
1395 |
exp = upd_field->exp; |
|
1396 |
||
1397 |
eval_exp(exp); |
|
1398 |
||
1399 |
dfield_copy_data(&(upd_field->new_val), que_node_get_val(exp)); |
|
1400 |
}
|
|
1401 |
}
|
|
1402 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1403 |
/***********************************************************//**
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1404 |
Stores to the heap the row on which the node->pcur is positioned. */
|
1405 |
static
|
|
1406 |
void
|
|
1407 |
row_upd_store_row( |
|
1408 |
/*==============*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1409 |
upd_node_t* node) /*!< in: row update node */ |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1410 |
{
|
1411 |
dict_index_t* clust_index; |
|
1412 |
rec_t* rec; |
|
1413 |
mem_heap_t* heap = NULL; |
|
1819.9.38
by Marko Mäkelä
Merge Revision revid:marko.makela@oracle.com-20100629132105-zzdqxv00w8r8hq6r from MySQL InnoDB |
1414 |
row_ext_t** ext; |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1415 |
ulint offsets_[REC_OFFS_NORMAL_SIZE]; |
1416 |
const ulint* offsets; |
|
1417 |
rec_offs_init(offsets_); |
|
1418 |
||
1419 |
ut_ad(node->pcur->latch_mode != BTR_NO_LATCHES); |
|
1420 |
||
1421 |
if (node->row != NULL) { |
|
1422 |
mem_heap_empty(node->heap); |
|
1423 |
}
|
|
1424 |
||
1425 |
clust_index = dict_table_get_first_index(node->table); |
|
1426 |
||
1427 |
rec = btr_pcur_get_rec(node->pcur); |
|
1428 |
||
1429 |
offsets = rec_get_offsets(rec, clust_index, offsets_, |
|
1430 |
ULINT_UNDEFINED, &heap); |
|
1819.9.38
by Marko Mäkelä
Merge Revision revid:marko.makela@oracle.com-20100629132105-zzdqxv00w8r8hq6r from MySQL InnoDB |
1431 |
|
1432 |
if (dict_table_get_format(node->table) >= DICT_TF_FORMAT_ZIP) { |
|
1433 |
/* In DYNAMIC or COMPRESSED format, there is no prefix
|
|
1434 |
of externally stored columns in the clustered index
|
|
1435 |
record. Build a cache of column prefixes. */
|
|
1436 |
ext = &node->ext; |
|
1437 |
} else { |
|
1438 |
/* REDUNDANT and COMPACT formats store a local
|
|
1439 |
768-byte prefix of each externally stored column.
|
|
1440 |
No cache is needed. */
|
|
1441 |
ext = NULL; |
|
1442 |
node->ext = NULL; |
|
1443 |
}
|
|
1444 |
||
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1445 |
node->row = row_build(ROW_COPY_DATA, clust_index, rec, offsets, |
1819.9.38
by Marko Mäkelä
Merge Revision revid:marko.makela@oracle.com-20100629132105-zzdqxv00w8r8hq6r from MySQL InnoDB |
1446 |
NULL, ext, node->heap); |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1447 |
if (node->is_delete) { |
1448 |
node->upd_row = NULL; |
|
1449 |
node->upd_ext = NULL; |
|
1450 |
} else { |
|
1451 |
node->upd_row = dtuple_copy(node->row, node->heap); |
|
1452 |
row_upd_replace(node->upd_row, &node->upd_ext, |
|
1453 |
clust_index, node->update, node->heap); |
|
1454 |
}
|
|
1455 |
||
1456 |
if (UNIV_LIKELY_NULL(heap)) { |
|
1457 |
mem_heap_free(heap); |
|
1458 |
}
|
|
1459 |
}
|
|
1460 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1461 |
/***********************************************************//**
|
1462 |
Updates a secondary index entry of a row.
|
|
1463 |
@return DB_SUCCESS if operation successfully completed, else error
|
|
1464 |
code or DB_LOCK_WAIT */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1465 |
static
|
1466 |
ulint
|
|
1467 |
row_upd_sec_index_entry( |
|
1468 |
/*====================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1469 |
upd_node_t* node, /*!< in: row update node */ |
1470 |
que_thr_t* thr) /*!< in: query thread */ |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1471 |
{
|
1819.7.68
by Stewart Smith
Merge initial InnoDB+ import. |
1472 |
mtr_t mtr; |
1473 |
const rec_t* rec; |
|
1474 |
btr_pcur_t pcur; |
|
1475 |
mem_heap_t* heap; |
|
1476 |
dtuple_t* entry; |
|
1477 |
dict_index_t* index; |
|
1478 |
btr_cur_t* btr_cur; |
|
1479 |
ibool referenced; |
|
1480 |
ulint err = DB_SUCCESS; |
|
1481 |
trx_t* trx = thr_get_trx(thr); |
|
1482 |
ulint mode = BTR_MODIFY_LEAF; |
|
1483 |
enum row_search_result search_result; |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1484 |
|
1485 |
index = node->index; |
|
1486 |
||
1819.7.68
by Stewart Smith
Merge initial InnoDB+ import. |
1487 |
referenced = row_upd_index_is_referenced(index, trx); |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1488 |
|
1489 |
heap = mem_heap_create(1024); |
|
1490 |
||
1491 |
/* Build old index entry */
|
|
1492 |
entry = row_build_index_entry(node->row, node->ext, index, heap); |
|
1493 |
ut_a(entry); |
|
1494 |
||
1495 |
mtr_start(&mtr); |
|
1496 |
||
1819.7.68
by Stewart Smith
Merge initial InnoDB+ import. |
1497 |
/* Set the query thread, so that ibuf_insert_low() will be
|
1498 |
able to invoke thd_get_trx(). */
|
|
1499 |
btr_pcur_get_btr_cur(&pcur)->thr = thr; |
|
1500 |
||
1501 |
/* We can only try to use the insert/delete buffer to buffer
|
|
1502 |
delete-mark operations if the index we're modifying has no foreign
|
|
1503 |
key constraints referring to it. */
|
|
1504 |
if (!referenced) { |
|
1505 |
mode |= BTR_DELETE_MARK; |
|
1506 |
}
|
|
1507 |
||
1508 |
search_result = row_search_index_entry(index, entry, mode, |
|
1509 |
&pcur, &mtr); |
|
1510 |
||
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1511 |
btr_cur = btr_pcur_get_btr_cur(&pcur); |
1512 |
||
1513 |
rec = btr_cur_get_rec(btr_cur); |
|
1514 |
||
1819.7.68
by Stewart Smith
Merge initial InnoDB+ import. |
1515 |
switch (search_result) { |
1516 |
case ROW_NOT_DELETED_REF: /* should only occur for BTR_DELETE */ |
|
1517 |
ut_error; |
|
1518 |
break; |
|
1519 |
case ROW_BUFFERED: |
|
1520 |
/* Entry was delete marked already. */
|
|
1521 |
break; |
|
1522 |
||
1523 |
case ROW_NOT_FOUND: |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1524 |
fputs("InnoDB: error in sec index entry update in\n" |
1525 |
"InnoDB: ", stderr); |
|
1526 |
dict_index_name_print(stderr, trx, index); |
|
1527 |
fputs("\n" |
|
1528 |
"InnoDB: tuple ", stderr); |
|
1529 |
dtuple_print(stderr, entry); |
|
1530 |
fputs("\n" |
|
1531 |
"InnoDB: record ", stderr); |
|
1532 |
rec_print(stderr, rec, index); |
|
1533 |
putc('\n', stderr); |
|
1534 |
||
1535 |
trx_print(stderr, trx, 0); |
|
1536 |
||
1537 |
fputs("\n" |
|
1538 |
"InnoDB: Submit a detailed bug report"
|
|
1539 |
" to http://bugs.mysql.com\n", stderr); |
|
1819.7.68
by Stewart Smith
Merge initial InnoDB+ import. |
1540 |
break; |
1541 |
case ROW_FOUND: |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1542 |
/* Delete mark the old index record; it can already be
|
1543 |
delete marked if we return after a lock wait in
|
|
1544 |
row_ins_index_entry below */
|
|
1545 |
||
1819.7.68
by Stewart Smith
Merge initial InnoDB+ import. |
1546 |
if (!rec_get_deleted_flag( |
1547 |
rec, dict_table_is_comp(index->table))) { |
|
1548 |
||
1549 |
err = btr_cur_del_mark_set_sec_rec( |
|
1550 |
0, btr_cur, TRUE, thr, &mtr); |
|
1551 |
||
1552 |
if (err == DB_SUCCESS && referenced) { |
|
1553 |
||
1554 |
ulint* offsets; |
|
1555 |
||
1556 |
offsets = rec_get_offsets( |
|
1557 |
rec, index, NULL, ULINT_UNDEFINED, |
|
1558 |
&heap); |
|
1559 |
||
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1560 |
/* NOTE that the following call loses
|
1561 |
the position of pcur ! */
|
|
1562 |
err = row_upd_check_references_constraints( |
|
1563 |
node, &pcur, index->table, |
|
1564 |
index, offsets, thr, &mtr); |
|
1565 |
}
|
|
1566 |
}
|
|
1819.7.68
by Stewart Smith
Merge initial InnoDB+ import. |
1567 |
break; |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1568 |
}
|
1569 |
||
1570 |
btr_pcur_close(&pcur); |
|
1571 |
mtr_commit(&mtr); |
|
1572 |
||
1573 |
if (node->is_delete || err != DB_SUCCESS) { |
|
1574 |
||
1575 |
goto func_exit; |
|
1576 |
}
|
|
1577 |
||
1578 |
/* Build a new index entry */
|
|
1579 |
entry = row_build_index_entry(node->upd_row, node->upd_ext, |
|
1580 |
index, heap); |
|
1581 |
ut_a(entry); |
|
1582 |
||
1583 |
/* Insert new index entry */
|
|
1584 |
err = row_ins_index_entry(index, entry, 0, TRUE, thr); |
|
1585 |
||
1586 |
func_exit: |
|
1587 |
mem_heap_free(heap); |
|
1588 |
||
1589 |
return(err); |
|
1590 |
}
|
|
1591 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1592 |
/***********************************************************//**
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1593 |
Updates the secondary index record if it is changed in the row update or
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1594 |
deletes it if this is a delete.
|
1595 |
@return DB_SUCCESS if operation successfully completed, else error
|
|
1596 |
code or DB_LOCK_WAIT */
|
|
1819.9.12
by Inaam Rana
Merge Revision revid:inaam.rana@oracle.com-20100608181408-c5xsjlom5olr4mxt from MySQL InnoDB |
1597 |
static
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1598 |
ulint
|
1599 |
row_upd_sec_step( |
|
1600 |
/*=============*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1601 |
upd_node_t* node, /*!< in: row update node */ |
1602 |
que_thr_t* thr) /*!< in: query thread */ |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1603 |
{
|
1604 |
ut_ad((node->state == UPD_NODE_UPDATE_ALL_SEC) |
|
1605 |
|| (node->state == UPD_NODE_UPDATE_SOME_SEC)); |
|
1606 |
ut_ad(!dict_index_is_clust(node->index)); |
|
1607 |
||
1608 |
if (node->state == UPD_NODE_UPDATE_ALL_SEC |
|
1609 |
|| row_upd_changes_ord_field_binary(node->row, node->index, |
|
1610 |
node->update)) { |
|
1611 |
return(row_upd_sec_index_entry(node, thr)); |
|
1612 |
}
|
|
1613 |
||
1614 |
return(DB_SUCCESS); |
|
1615 |
}
|
|
1616 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1617 |
/***********************************************************//**
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1618 |
Marks the clustered index record deleted and inserts the updated version
|
1619 |
of the record to the index. This function should be used when the ordering
|
|
1620 |
fields of the clustered index record change. This should be quite rare in
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1621 |
database applications.
|
1622 |
@return DB_SUCCESS if operation successfully completed, else error
|
|
1623 |
code or DB_LOCK_WAIT */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1624 |
static
|
1625 |
ulint
|
|
1626 |
row_upd_clust_rec_by_insert( |
|
1627 |
/*========================*/
|
|
1819.9.197
by Marko Mäkelä, Stewart Smith
Merge Revision revid:marko.makela@oracle.com-20101103091611-a3x9p0yivkvu5u9i from MySQL InnoDB |
1628 |
upd_node_t* node, /*!< in/out: row update node */ |
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1629 |
dict_index_t* index, /*!< in: clustered index of the record */ |
1630 |
que_thr_t* thr, /*!< in: query thread */ |
|
1819.7.68
by Stewart Smith
Merge initial InnoDB+ import. |
1631 |
ibool referenced,/*!< in: TRUE if index may be referenced in |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1632 |
a foreign key constraint */
|
1819.9.197
by Marko Mäkelä, Stewart Smith
Merge Revision revid:marko.makela@oracle.com-20101103091611-a3x9p0yivkvu5u9i from MySQL InnoDB |
1633 |
mtr_t* mtr) /*!< in/out: mtr; gets committed here */ |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1634 |
{
|
1635 |
mem_heap_t* heap = NULL; |
|
1636 |
btr_pcur_t* pcur; |
|
1637 |
btr_cur_t* btr_cur; |
|
1638 |
trx_t* trx; |
|
1639 |
dict_table_t* table; |
|
1640 |
dtuple_t* entry; |
|
1641 |
ulint err; |
|
1819.9.89
by Sunny Bains, Stewart Smith
Merge Revision revid:sunny.bains@oracle.com-20100805091817-nsk8q8dzz47puv9p from MySQL InnoDB |
1642 |
ibool change_ownership = FALSE; |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1643 |
|
1644 |
ut_ad(node); |
|
1645 |
ut_ad(dict_index_is_clust(index)); |
|
1646 |
||
1647 |
trx = thr_get_trx(thr); |
|
1648 |
table = node->table; |
|
1649 |
pcur = node->pcur; |
|
1650 |
btr_cur = btr_pcur_get_btr_cur(pcur); |
|
1651 |
||
1652 |
if (node->state != UPD_NODE_INSERT_CLUSTERED) { |
|
1653 |
rec_t* rec; |
|
2023.3.21
by Monty Taylor
Wow. Got rid of most of INNOBASE_SKIP_WARNINGS. |
1654 |
dict_index_t* node_index; |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1655 |
ulint offsets_[REC_OFFS_NORMAL_SIZE]; |
1656 |
ulint* offsets; |
|
1657 |
rec_offs_init(offsets_); |
|
1658 |
||
1659 |
err = btr_cur_del_mark_set_clust_rec(BTR_NO_LOCKING_FLAG, |
|
1660 |
btr_cur, TRUE, thr, mtr); |
|
1661 |
if (err != DB_SUCCESS) { |
|
1662 |
mtr_commit(mtr); |
|
1663 |
return(err); |
|
1664 |
}
|
|
1665 |
||
1666 |
/* Mark as not-owned the externally stored fields which the new
|
|
1667 |
row inherits from the delete marked record: purge should not
|
|
1668 |
free those externally stored fields even if the delete marked
|
|
1669 |
record is removed from the index tree, or updated. */
|
|
1670 |
||
1671 |
rec = btr_cur_get_rec(btr_cur); |
|
2023.3.21
by Monty Taylor
Wow. Got rid of most of INNOBASE_SKIP_WARNINGS. |
1672 |
node_index = dict_table_get_first_index(table); |
1673 |
offsets = rec_get_offsets(rec, node_index, offsets_, |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1674 |
ULINT_UNDEFINED, &heap); |
1819.9.89
by Sunny Bains, Stewart Smith
Merge Revision revid:sunny.bains@oracle.com-20100805091817-nsk8q8dzz47puv9p from MySQL InnoDB |
1675 |
change_ownership = btr_cur_mark_extern_inherited_fields( |
2023.3.21
by Monty Taylor
Wow. Got rid of most of INNOBASE_SKIP_WARNINGS. |
1676 |
btr_cur_get_page_zip(btr_cur), rec, node_index, offsets, |
1819.9.89
by Sunny Bains, Stewart Smith
Merge Revision revid:sunny.bains@oracle.com-20100805091817-nsk8q8dzz47puv9p from MySQL InnoDB |
1677 |
node->update, mtr); |
1819.7.68
by Stewart Smith
Merge initial InnoDB+ import. |
1678 |
if (referenced) { |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1679 |
/* NOTE that the following call loses
|
1680 |
the position of pcur ! */
|
|
1819.7.68
by Stewart Smith
Merge initial InnoDB+ import. |
1681 |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1682 |
err = row_upd_check_references_constraints( |
2023.3.21
by Monty Taylor
Wow. Got rid of most of INNOBASE_SKIP_WARNINGS. |
1683 |
node, pcur, table, node_index, offsets, thr, mtr); |
1819.7.68
by Stewart Smith
Merge initial InnoDB+ import. |
1684 |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1685 |
if (err != DB_SUCCESS) { |
1819.7.68
by Stewart Smith
Merge initial InnoDB+ import. |
1686 |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1687 |
mtr_commit(mtr); |
1819.7.68
by Stewart Smith
Merge initial InnoDB+ import. |
1688 |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1689 |
if (UNIV_LIKELY_NULL(heap)) { |
1690 |
mem_heap_free(heap); |
|
1691 |
}
|
|
1819.7.68
by Stewart Smith
Merge initial InnoDB+ import. |
1692 |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1693 |
return(err); |
1694 |
}
|
|
1695 |
}
|
|
1696 |
}
|
|
1697 |
||
1698 |
mtr_commit(mtr); |
|
1699 |
||
1700 |
if (!heap) { |
|
1701 |
heap = mem_heap_create(500); |
|
1702 |
}
|
|
1703 |
node->state = UPD_NODE_INSERT_CLUSTERED; |
|
1704 |
||
1705 |
entry = row_build_index_entry(node->upd_row, node->upd_ext, |
|
1706 |
index, heap); |
|
1707 |
ut_a(entry); |
|
1708 |
||
1709 |
row_upd_index_entry_sys_field(entry, index, DATA_TRX_ID, trx->id); |
|
1710 |
||
1819.9.89
by Sunny Bains, Stewart Smith
Merge Revision revid:sunny.bains@oracle.com-20100805091817-nsk8q8dzz47puv9p from MySQL InnoDB |
1711 |
if (change_ownership) { |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1712 |
/* If we return from a lock wait, for example, we may have
|
1713 |
extern fields marked as not-owned in entry (marked in the
|
|
1819.9.89
by Sunny Bains, Stewart Smith
Merge Revision revid:sunny.bains@oracle.com-20100805091817-nsk8q8dzz47puv9p from MySQL InnoDB |
1714 |
if-branch above). We must unmark them, take the ownership
|
1715 |
back. */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1716 |
|
1717 |
btr_cur_unmark_dtuple_extern_fields(entry); |
|
1718 |
||
1719 |
/* We must mark non-updated extern fields in entry as
|
|
1720 |
inherited, so that a possible rollback will not free them. */
|
|
1721 |
||
1722 |
btr_cur_mark_dtuple_inherited_extern(entry, node->update); |
|
1723 |
}
|
|
1724 |
||
1725 |
err = row_ins_index_entry(index, entry, |
|
1726 |
node->upd_ext ? node->upd_ext->n_ext : 0, |
|
1727 |
TRUE, thr); |
|
1728 |
mem_heap_free(heap); |
|
1729 |
||
1730 |
return(err); |
|
1731 |
}
|
|
1732 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1733 |
/***********************************************************//**
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1734 |
Updates a clustered index record of a row when the ordering fields do
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1735 |
not change.
|
1736 |
@return DB_SUCCESS if operation successfully completed, else error
|
|
1737 |
code or DB_LOCK_WAIT */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1738 |
static
|
1739 |
ulint
|
|
1740 |
row_upd_clust_rec( |
|
1741 |
/*==============*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1742 |
upd_node_t* node, /*!< in: row update node */ |
1743 |
dict_index_t* index, /*!< in: clustered index */ |
|
1744 |
que_thr_t* thr, /*!< in: query thread */ |
|
1745 |
mtr_t* mtr) /*!< in: mtr; gets committed here */ |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1746 |
{
|
1747 |
mem_heap_t* heap = NULL; |
|
1748 |
big_rec_t* big_rec = NULL; |
|
1749 |
btr_pcur_t* pcur; |
|
1750 |
btr_cur_t* btr_cur; |
|
1751 |
ulint err; |
|
1752 |
||
1753 |
ut_ad(node); |
|
1754 |
ut_ad(dict_index_is_clust(index)); |
|
1755 |
||
1756 |
pcur = node->pcur; |
|
1757 |
btr_cur = btr_pcur_get_btr_cur(pcur); |
|
1758 |
||
1759 |
ut_ad(!rec_get_deleted_flag(btr_pcur_get_rec(pcur), |
|
1760 |
dict_table_is_comp(index->table))); |
|
1761 |
||
1762 |
/* Try optimistic updating of the record, keeping changes within
|
|
1763 |
the page; we do not check locks because we assume the x-lock on the
|
|
1764 |
record to update */
|
|
1765 |
||
1766 |
if (node->cmpl_info & UPD_NODE_NO_SIZE_CHANGE) { |
|
1767 |
err = btr_cur_update_in_place(BTR_NO_LOCKING_FLAG, |
|
1768 |
btr_cur, node->update, |
|
1769 |
node->cmpl_info, thr, mtr); |
|
1770 |
} else { |
|
1771 |
err = btr_cur_optimistic_update(BTR_NO_LOCKING_FLAG, |
|
1772 |
btr_cur, node->update, |
|
1773 |
node->cmpl_info, thr, mtr); |
|
1774 |
}
|
|
1775 |
||
1776 |
mtr_commit(mtr); |
|
1777 |
||
1778 |
if (UNIV_LIKELY(err == DB_SUCCESS)) { |
|
1779 |
||
1780 |
return(DB_SUCCESS); |
|
1781 |
}
|
|
1782 |
||
1783 |
if (buf_LRU_buf_pool_running_out()) { |
|
1784 |
||
1785 |
return(DB_LOCK_TABLE_FULL); |
|
1786 |
}
|
|
1787 |
/* We may have to modify the tree structure: do a pessimistic descent
|
|
1788 |
down the index tree */
|
|
1789 |
||
1790 |
mtr_start(mtr); |
|
1791 |
||
1792 |
/* NOTE: this transaction has an s-lock or x-lock on the record and
|
|
1793 |
therefore other transactions cannot modify the record when we have no
|
|
1794 |
latch on the page. In addition, we assume that other query threads of
|
|
1795 |
the same transaction do not modify the record in the meantime.
|
|
1796 |
Therefore we can assert that the restoration of the cursor succeeds. */
|
|
1797 |
||
1798 |
ut_a(btr_pcur_restore_position(BTR_MODIFY_TREE, pcur, mtr)); |
|
1799 |
||
1800 |
ut_ad(!rec_get_deleted_flag(btr_pcur_get_rec(pcur), |
|
1801 |
dict_table_is_comp(index->table))); |
|
1802 |
||
1803 |
err = btr_cur_pessimistic_update(BTR_NO_LOCKING_FLAG, btr_cur, |
|
1804 |
&heap, &big_rec, node->update, |
|
1805 |
node->cmpl_info, thr, mtr); |
|
1806 |
mtr_commit(mtr); |
|
1807 |
||
1808 |
if (err == DB_SUCCESS && big_rec) { |
|
1809 |
ulint offsets_[REC_OFFS_NORMAL_SIZE]; |
|
1810 |
rec_t* rec; |
|
1811 |
rec_offs_init(offsets_); |
|
1812 |
||
1813 |
mtr_start(mtr); |
|
1814 |
||
1815 |
ut_a(btr_pcur_restore_position(BTR_MODIFY_TREE, pcur, mtr)); |
|
1816 |
rec = btr_cur_get_rec(btr_cur); |
|
1817 |
err = btr_store_big_rec_extern_fields( |
|
1818 |
index, btr_cur_get_block(btr_cur), rec, |
|
1819 |
rec_get_offsets(rec, index, offsets_, |
|
1820 |
ULINT_UNDEFINED, &heap), |
|
1821 |
big_rec, mtr); |
|
1822 |
mtr_commit(mtr); |
|
1823 |
}
|
|
1824 |
||
1825 |
if (UNIV_LIKELY_NULL(heap)) { |
|
1826 |
mem_heap_free(heap); |
|
1827 |
}
|
|
1828 |
||
1829 |
if (big_rec) { |
|
1830 |
dtuple_big_rec_free(big_rec); |
|
1831 |
}
|
|
1832 |
||
1833 |
return(err); |
|
1834 |
}
|
|
1835 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1836 |
/***********************************************************//**
|
1837 |
Delete marks a clustered index record.
|
|
1838 |
@return DB_SUCCESS if operation successfully completed, else error code */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1839 |
static
|
1840 |
ulint
|
|
1841 |
row_upd_del_mark_clust_rec( |
|
1842 |
/*=======================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1843 |
upd_node_t* node, /*!< in: row update node */ |
1844 |
dict_index_t* index, /*!< in: clustered index */ |
|
1845 |
ulint* offsets,/*!< in/out: rec_get_offsets() for the |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1846 |
record under the cursor */
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1847 |
que_thr_t* thr, /*!< in: query thread */ |
1819.7.68
by Stewart Smith
Merge initial InnoDB+ import. |
1848 |
ibool referenced, |
1849 |
/*!< in: TRUE if index may be referenced in
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1850 |
a foreign key constraint */
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1851 |
mtr_t* mtr) /*!< in: mtr; gets committed here */ |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1852 |
{
|
1853 |
btr_pcur_t* pcur; |
|
1854 |
btr_cur_t* btr_cur; |
|
1855 |
ulint err; |
|
1856 |
||
1857 |
ut_ad(node); |
|
1858 |
ut_ad(dict_index_is_clust(index)); |
|
1859 |
ut_ad(node->is_delete); |
|
1860 |
||
1861 |
pcur = node->pcur; |
|
1862 |
btr_cur = btr_pcur_get_btr_cur(pcur); |
|
1863 |
||
1864 |
/* Store row because we have to build also the secondary index
|
|
1865 |
entries */
|
|
1866 |
||
1867 |
row_upd_store_row(node); |
|
1868 |
||
1869 |
/* Mark the clustered index record deleted; we do not have to check
|
|
1870 |
locks, because we assume that we have an x-lock on the record */
|
|
1871 |
||
1872 |
err = btr_cur_del_mark_set_clust_rec(BTR_NO_LOCKING_FLAG, |
|
1873 |
btr_cur, TRUE, thr, mtr); |
|
1819.7.68
by Stewart Smith
Merge initial InnoDB+ import. |
1874 |
if (err == DB_SUCCESS && referenced) { |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1875 |
/* NOTE that the following call loses the position of pcur ! */
|
1876 |
||
1819.7.68
by Stewart Smith
Merge initial InnoDB+ import. |
1877 |
err = row_upd_check_references_constraints( |
1878 |
node, pcur, index->table, index, offsets, thr, mtr); |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1879 |
}
|
1880 |
||
1881 |
mtr_commit(mtr); |
|
1882 |
||
1883 |
return(err); |
|
1884 |
}
|
|
1885 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1886 |
/***********************************************************//**
|
1887 |
Updates the clustered index record.
|
|
1888 |
@return DB_SUCCESS if operation successfully completed, DB_LOCK_WAIT
|
|
1889 |
in case of a lock wait, else error code */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1890 |
static
|
1891 |
ulint
|
|
1892 |
row_upd_clust_step( |
|
1893 |
/*===============*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1894 |
upd_node_t* node, /*!< in: row update node */ |
1895 |
que_thr_t* thr) /*!< in: query thread */ |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1896 |
{
|
1897 |
dict_index_t* index; |
|
1898 |
btr_pcur_t* pcur; |
|
1899 |
ibool success; |
|
1900 |
ulint err; |
|
1901 |
mtr_t* mtr; |
|
1902 |
mtr_t mtr_buf; |
|
1903 |
rec_t* rec; |
|
1904 |
mem_heap_t* heap = NULL; |
|
1905 |
ulint offsets_[REC_OFFS_NORMAL_SIZE]; |
|
1906 |
ulint* offsets; |
|
1819.7.68
by Stewart Smith
Merge initial InnoDB+ import. |
1907 |
ibool referenced; |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1908 |
rec_offs_init(offsets_); |
1909 |
||
1910 |
index = dict_table_get_first_index(node->table); |
|
1911 |
||
1819.7.68
by Stewart Smith
Merge initial InnoDB+ import. |
1912 |
referenced = row_upd_index_is_referenced(index, thr_get_trx(thr)); |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1913 |
|
1914 |
pcur = node->pcur; |
|
1915 |
||
1916 |
/* We have to restore the cursor to its position */
|
|
1917 |
mtr = &mtr_buf; |
|
1918 |
||
1919 |
mtr_start(mtr); |
|
1920 |
||
1921 |
/* If the restoration does not succeed, then the same
|
|
1922 |
transaction has deleted the record on which the cursor was,
|
|
1923 |
and that is an SQL error. If the restoration succeeds, it may
|
|
1924 |
still be that the same transaction has successively deleted
|
|
1925 |
and inserted a record with the same ordering fields, but in
|
|
1926 |
that case we know that the transaction has at least an
|
|
1927 |
implicit x-lock on the record. */
|
|
1928 |
||
1929 |
ut_a(pcur->rel_pos == BTR_PCUR_ON); |
|
1930 |
||
1931 |
success = btr_pcur_restore_position(BTR_MODIFY_LEAF, pcur, mtr); |
|
1932 |
||
1933 |
if (!success) { |
|
1934 |
err = DB_RECORD_NOT_FOUND; |
|
1935 |
||
1936 |
mtr_commit(mtr); |
|
1937 |
||
1938 |
return(err); |
|
1939 |
}
|
|
1940 |
||
1941 |
/* If this is a row in SYS_INDEXES table of the data dictionary,
|
|
1942 |
then we have to free the file segments of the index tree associated
|
|
1943 |
with the index */
|
|
1944 |
||
1819.9.31
by Marko Mäkelä, Stewart Smith
Merge Revision revid:marko.makela@oracle.com-20100623110659-pk5bqnmo0j7hj6md from MySQL InnoDB |
1945 |
if (node->is_delete && node->table->id == DICT_INDEXES_ID) { |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1946 |
|
1947 |
dict_drop_index_tree(btr_pcur_get_rec(pcur), mtr); |
|
1948 |
||
1949 |
mtr_commit(mtr); |
|
1950 |
||
1951 |
mtr_start(mtr); |
|
1952 |
||
1953 |
success = btr_pcur_restore_position(BTR_MODIFY_LEAF, pcur, |
|
1954 |
mtr); |
|
1955 |
if (!success) { |
|
1956 |
err = DB_ERROR; |
|
1957 |
||
1958 |
mtr_commit(mtr); |
|
1959 |
||
1960 |
return(err); |
|
1961 |
}
|
|
1962 |
}
|
|
1963 |
||
1964 |
rec = btr_pcur_get_rec(pcur); |
|
1965 |
offsets = rec_get_offsets(rec, index, offsets_, |
|
1966 |
ULINT_UNDEFINED, &heap); |
|
1967 |
||
1968 |
if (!node->has_clust_rec_x_lock) { |
|
1969 |
err = lock_clust_rec_modify_check_and_lock( |
|
1970 |
0, btr_pcur_get_block(pcur), |
|
1971 |
rec, index, offsets, thr); |
|
1972 |
if (err != DB_SUCCESS) { |
|
1973 |
mtr_commit(mtr); |
|
1974 |
goto exit_func; |
|
1975 |
}
|
|
1976 |
}
|
|
1977 |
||
1978 |
/* NOTE: the following function calls will also commit mtr */
|
|
1979 |
||
1980 |
if (node->is_delete) { |
|
1819.7.68
by Stewart Smith
Merge initial InnoDB+ import. |
1981 |
err = row_upd_del_mark_clust_rec( |
1982 |
node, index, offsets, thr, referenced, mtr); |
|
1983 |
||
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1984 |
if (err == DB_SUCCESS) { |
1985 |
node->state = UPD_NODE_UPDATE_ALL_SEC; |
|
1986 |
node->index = dict_table_get_next_index(index); |
|
1987 |
}
|
|
1988 |
exit_func: |
|
1989 |
if (UNIV_LIKELY_NULL(heap)) { |
|
1990 |
mem_heap_free(heap); |
|
1991 |
}
|
|
1992 |
return(err); |
|
1993 |
}
|
|
1994 |
||
1995 |
/* If the update is made for MySQL, we already have the update vector
|
|
1996 |
ready, else we have to do some evaluation: */
|
|
1997 |
||
1998 |
if (UNIV_UNLIKELY(!node->in_mysql_interface)) { |
|
1999 |
/* Copy the necessary columns from clust_rec and calculate the
|
|
2000 |
new values to set */
|
|
2001 |
row_upd_copy_columns(rec, offsets, |
|
2002 |
UT_LIST_GET_FIRST(node->columns)); |
|
2003 |
row_upd_eval_new_vals(node->update); |
|
2004 |
}
|
|
2005 |
||
2006 |
if (UNIV_LIKELY_NULL(heap)) { |
|
2007 |
mem_heap_free(heap); |
|
2008 |
}
|
|
2009 |
||
2010 |
if (node->cmpl_info & UPD_NODE_NO_ORD_CHANGE) { |
|
2011 |
||
2012 |
err = row_upd_clust_rec(node, index, thr, mtr); |
|
2013 |
return(err); |
|
2014 |
}
|
|
2015 |
||
2016 |
row_upd_store_row(node); |
|
2017 |
||
2018 |
if (row_upd_changes_ord_field_binary(node->row, index, node->update)) { |
|
2019 |
||
2020 |
/* Update causes an ordering field (ordering fields within
|
|
2021 |
the B-tree) of the clustered index record to change: perform
|
|
2022 |
the update by delete marking and inserting.
|
|
2023 |
||
2024 |
TODO! What to do to the 'Halloween problem', where an update
|
|
2025 |
moves the record forward in index so that it is again
|
|
2026 |
updated when the cursor arrives there? Solution: the
|
|
2027 |
read operation must check the undo record undo number when
|
|
2028 |
choosing records to update. MySQL solves now the problem
|
|
2029 |
externally! */
|
|
2030 |
||
1819.7.68
by Stewart Smith
Merge initial InnoDB+ import. |
2031 |
err = row_upd_clust_rec_by_insert( |
2032 |
node, index, thr, referenced, mtr); |
|
2033 |
||
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
2034 |
if (err != DB_SUCCESS) { |
2035 |
||
2036 |
return(err); |
|
2037 |
}
|
|
2038 |
||
2039 |
node->state = UPD_NODE_UPDATE_ALL_SEC; |
|
2040 |
} else { |
|
2041 |
err = row_upd_clust_rec(node, index, thr, mtr); |
|
2042 |
||
2043 |
if (err != DB_SUCCESS) { |
|
2044 |
||
2045 |
return(err); |
|
2046 |
}
|
|
2047 |
||
2048 |
node->state = UPD_NODE_UPDATE_SOME_SEC; |
|
2049 |
}
|
|
2050 |
||
2051 |
node->index = dict_table_get_next_index(index); |
|
2052 |
||
2053 |
return(err); |
|
2054 |
}
|
|
2055 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
2056 |
/***********************************************************//**
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
2057 |
Updates the affected index records of a row. When the control is transferred
|
2058 |
to this node, we assume that we have a persistent cursor which was on a
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
2059 |
record, and the position of the cursor is stored in the cursor.
|
2060 |
@return DB_SUCCESS if operation successfully completed, else error
|
|
2061 |
code or DB_LOCK_WAIT */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
2062 |
static
|
2063 |
ulint
|
|
2064 |
row_upd( |
|
2065 |
/*====*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
2066 |
upd_node_t* node, /*!< in: row update node */ |
2067 |
que_thr_t* thr) /*!< in: query thread */ |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
2068 |
{
|
2069 |
ulint err = DB_SUCCESS; |
|
2070 |
||
2071 |
ut_ad(node && thr); |
|
2072 |
||
2073 |
if (UNIV_LIKELY(node->in_mysql_interface)) { |
|
2074 |
||
2075 |
/* We do not get the cmpl_info value from the MySQL
|
|
2076 |
interpreter: we must calculate it on the fly: */
|
|
2077 |
||
2078 |
if (node->is_delete |
|
2079 |
|| row_upd_changes_some_index_ord_field_binary( |
|
2080 |
node->table, node->update)) { |
|
2081 |
node->cmpl_info = 0; |
|
2082 |
} else { |
|
2083 |
node->cmpl_info = UPD_NODE_NO_ORD_CHANGE; |
|
2084 |
}
|
|
2085 |
}
|
|
2086 |
||
2087 |
if (node->state == UPD_NODE_UPDATE_CLUSTERED |
|
2088 |
|| node->state == UPD_NODE_INSERT_CLUSTERED) { |
|
2089 |
||
1819.9.12
by Inaam Rana
Merge Revision revid:inaam.rana@oracle.com-20100608181408-c5xsjlom5olr4mxt from MySQL InnoDB |
2090 |
log_free_check(); |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
2091 |
err = row_upd_clust_step(node, thr); |
2092 |
||
2093 |
if (err != DB_SUCCESS) { |
|
2094 |
||
2095 |
goto function_exit; |
|
2096 |
}
|
|
2097 |
}
|
|
2098 |
||
2099 |
if (!node->is_delete && (node->cmpl_info & UPD_NODE_NO_ORD_CHANGE)) { |
|
2100 |
||
2101 |
goto function_exit; |
|
2102 |
}
|
|
2103 |
||
2104 |
while (node->index != NULL) { |
|
1819.9.12
by Inaam Rana
Merge Revision revid:inaam.rana@oracle.com-20100608181408-c5xsjlom5olr4mxt from MySQL InnoDB |
2105 |
|
2106 |
log_free_check(); |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
2107 |
err = row_upd_sec_step(node, thr); |
2108 |
||
2109 |
if (err != DB_SUCCESS) { |
|
2110 |
||
2111 |
goto function_exit; |
|
2112 |
}
|
|
2113 |
||
2114 |
node->index = dict_table_get_next_index(node->index); |
|
2115 |
}
|
|
2116 |
||
2117 |
function_exit: |
|
2118 |
if (err == DB_SUCCESS) { |
|
2119 |
/* Do some cleanup */
|
|
2120 |
||
2121 |
if (node->row != NULL) { |
|
2122 |
node->row = NULL; |
|
2123 |
node->ext = NULL; |
|
2124 |
node->upd_row = NULL; |
|
2125 |
node->upd_ext = NULL; |
|
2126 |
mem_heap_empty(node->heap); |
|
2127 |
}
|
|
2128 |
||
2129 |
node->state = UPD_NODE_UPDATE_CLUSTERED; |
|
2130 |
}
|
|
2131 |
||
2132 |
return(err); |
|
2133 |
}
|
|
2134 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
2135 |
/***********************************************************//**
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
2136 |
Updates a row in a table. This is a high-level function used in SQL execution
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
2137 |
graphs.
|
2138 |
@return query thread to run next or NULL */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
2139 |
UNIV_INTERN
|
2140 |
que_thr_t* |
|
2141 |
row_upd_step( |
|
2142 |
/*=========*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
2143 |
que_thr_t* thr) /*!< in: query thread */ |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
2144 |
{
|
2145 |
upd_node_t* node; |
|
2146 |
sel_node_t* sel_node; |
|
2147 |
que_node_t* parent; |
|
2148 |
ulint err = DB_SUCCESS; |
|
2149 |
trx_t* trx; |
|
2150 |
||
2151 |
ut_ad(thr); |
|
2152 |
||
2153 |
trx = thr_get_trx(thr); |
|
2154 |
||
2155 |
trx_start_if_not_started(trx); |
|
2156 |
||
2023.3.15
by Monty Taylor
More casting. |
2157 |
node = static_cast<upd_node_t *>(thr->run_node); |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
2158 |
|
2159 |
sel_node = node->select; |
|
2160 |
||
2161 |
parent = que_node_get_parent(node); |
|
2162 |
||
2163 |
ut_ad(que_node_get_type(node) == QUE_NODE_UPDATE); |
|
2164 |
||
2165 |
if (thr->prev_node == parent) { |
|
2166 |
node->state = UPD_NODE_SET_IX_LOCK; |
|
2167 |
}
|
|
2168 |
||
2169 |
if (node->state == UPD_NODE_SET_IX_LOCK) { |
|
2170 |
||
2171 |
if (!node->has_clust_rec_x_lock) { |
|
2172 |
/* It may be that the current session has not yet
|
|
2173 |
started its transaction, or it has been committed: */
|
|
2174 |
||
2175 |
err = lock_table(0, node->table, LOCK_IX, thr); |
|
2176 |
||
2177 |
if (err != DB_SUCCESS) { |
|
2178 |
||
2179 |
goto error_handling; |
|
2180 |
}
|
|
2181 |
}
|
|
2182 |
||
2183 |
node->state = UPD_NODE_UPDATE_CLUSTERED; |
|
2184 |
||
2185 |
if (node->searched_update) { |
|
2186 |
/* Reset the cursor */
|
|
2187 |
sel_node->state = SEL_NODE_OPEN; |
|
2188 |
||
2189 |
/* Fetch a row to update */
|
|
2190 |
||
2191 |
thr->run_node = sel_node; |
|
2192 |
||
2193 |
return(thr); |
|
2194 |
}
|
|
2195 |
}
|
|
2196 |
||
2197 |
/* sel_node is NULL if we are in the MySQL interface */
|
|
2198 |
||
2199 |
if (sel_node && (sel_node->state != SEL_NODE_FETCH)) { |
|
2200 |
||
2201 |
if (!node->searched_update) { |
|
2202 |
/* An explicit cursor should be positioned on a row
|
|
2203 |
to update */
|
|
2204 |
||
2205 |
ut_error; |
|
2206 |
||
2207 |
err = DB_ERROR; |
|
2208 |
||
2209 |
goto error_handling; |
|
2210 |
}
|
|
2211 |
||
2212 |
ut_ad(sel_node->state == SEL_NODE_NO_MORE_ROWS); |
|
2213 |
||
2214 |
/* No more rows to update, or the select node performed the
|
|
2215 |
updates directly in-place */
|
|
2216 |
||
2217 |
thr->run_node = parent; |
|
2218 |
||
2219 |
return(thr); |
|
2220 |
}
|
|
2221 |
||
2222 |
/* DO THE CHECKS OF THE CONSISTENCY CONSTRAINTS HERE */
|
|
2223 |
||
2224 |
err = row_upd(node, thr); |
|
2225 |
||
2226 |
error_handling: |
|
2227 |
trx->error_state = err; |
|
2228 |
||
2229 |
if (err != DB_SUCCESS) { |
|
2230 |
return(NULL); |
|
2231 |
}
|
|
2232 |
||
2233 |
/* DO THE TRIGGER ACTIONS HERE */
|
|
2234 |
||
2235 |
if (node->searched_update) { |
|
2236 |
/* Fetch next row to update */
|
|
2237 |
||
2238 |
thr->run_node = sel_node; |
|
2239 |
} else { |
|
2240 |
/* It was an explicit cursor update */
|
|
2241 |
||
2242 |
thr->run_node = parent; |
|
2243 |
}
|
|
2244 |
||
2245 |
node->state = UPD_NODE_UPDATE_CLUSTERED; |
|
2246 |
||
2247 |
return(thr); |
|
2248 |
}
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
2249 |
#endif /* !UNIV_HOTBACKUP */ |