641.2.2
by Monty Taylor
InnoDB Plugin 1.0.3 |
1 |
/*****************************************************************************
|
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
|
|
6 |
the terms of the GNU General Public License as published by the Free Software
|
|
7 |
Foundation; version 2 of the License.
|
|
8 |
||
9 |
This program is distributed in the hope that it will be useful, but WITHOUT
|
|
10 |
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
|
11 |
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
|
|
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 |
*****************************************************************************/
|
|
18 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
19 |
/**************************************************//**
|
20 |
@file trx/trx0rec.c
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
21 |
Transaction undo log record
|
22 |
||
23 |
Created 3/26/1996 Heikki Tuuri
|
|
24 |
*******************************************************/
|
|
25 |
||
26 |
#include "trx0rec.h" |
|
27 |
||
28 |
#ifdef UNIV_NONINL
|
|
29 |
#include "trx0rec.ic" |
|
30 |
#endif
|
|
31 |
||
32 |
#include "fsp0fsp.h" |
|
33 |
#include "mach0data.h" |
|
34 |
#include "trx0undo.h" |
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
35 |
#include "mtr0log.h" |
36 |
#ifndef UNIV_HOTBACKUP
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
37 |
#include "dict0dict.h" |
38 |
#include "ut0mem.h" |
|
39 |
#include "row0ext.h" |
|
40 |
#include "row0upd.h" |
|
41 |
#include "que0que.h" |
|
42 |
#include "trx0purge.h" |
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
43 |
#include "trx0rseg.h" |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
44 |
#include "row0row.h" |
45 |
||
46 |
/*=========== UNDO LOG RECORD CREATION AND DECODING ====================*/
|
|
47 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
48 |
/**********************************************************************//**
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
49 |
Writes the mtr log entry of the inserted undo log record on the undo log
|
50 |
page. */
|
|
51 |
UNIV_INLINE
|
|
52 |
void
|
|
53 |
trx_undof_page_add_undo_rec_log( |
|
54 |
/*============================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
55 |
page_t* undo_page, /*!< in: undo log page */ |
56 |
ulint old_free, /*!< in: start offset of the inserted entry */ |
|
57 |
ulint new_free, /*!< in: end offset of the entry */ |
|
58 |
mtr_t* mtr) /*!< in: mtr */ |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
59 |
{
|
60 |
byte* log_ptr; |
|
61 |
const byte* log_end; |
|
62 |
ulint len; |
|
63 |
||
64 |
log_ptr = mlog_open(mtr, 11 + 13 + MLOG_BUF_MARGIN); |
|
65 |
||
66 |
if (log_ptr == NULL) { |
|
67 |
||
68 |
return; |
|
69 |
}
|
|
70 |
||
71 |
log_end = &log_ptr[11 + 13 + MLOG_BUF_MARGIN]; |
|
72 |
log_ptr = mlog_write_initial_log_record_fast( |
|
73 |
undo_page, MLOG_UNDO_INSERT, log_ptr, mtr); |
|
74 |
len = new_free - old_free - 4; |
|
75 |
||
76 |
mach_write_to_2(log_ptr, len); |
|
77 |
log_ptr += 2; |
|
78 |
||
79 |
if (log_ptr + len <= log_end) { |
|
80 |
memcpy(log_ptr, undo_page + old_free + 2, len); |
|
81 |
mlog_close(mtr, log_ptr + len); |
|
82 |
} else { |
|
83 |
mlog_close(mtr, log_ptr); |
|
84 |
mlog_catenate_string(mtr, undo_page + old_free + 2, len); |
|
85 |
}
|
|
86 |
}
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
87 |
#endif /* !UNIV_HOTBACKUP */ |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
88 |
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
89 |
/***********************************************************//**
|
90 |
Parses a redo log record of adding an undo log record.
|
|
91 |
@return end of log record or NULL */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
92 |
UNIV_INTERN
|
93 |
byte* |
|
94 |
trx_undo_parse_add_undo_rec( |
|
95 |
/*========================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
96 |
byte* ptr, /*!< in: buffer */ |
97 |
byte* end_ptr,/*!< in: buffer end */ |
|
98 |
page_t* page) /*!< in: page or NULL */ |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
99 |
{
|
100 |
ulint len; |
|
101 |
byte* rec; |
|
102 |
ulint first_free; |
|
103 |
||
104 |
if (end_ptr < ptr + 2) { |
|
105 |
||
106 |
return(NULL); |
|
107 |
}
|
|
108 |
||
109 |
len = mach_read_from_2(ptr); |
|
110 |
ptr += 2; |
|
111 |
||
112 |
if (end_ptr < ptr + len) { |
|
113 |
||
114 |
return(NULL); |
|
115 |
}
|
|
116 |
||
117 |
if (page == NULL) { |
|
118 |
||
119 |
return(ptr + len); |
|
120 |
}
|
|
121 |
||
122 |
first_free = mach_read_from_2(page + TRX_UNDO_PAGE_HDR |
|
123 |
+ TRX_UNDO_PAGE_FREE); |
|
124 |
rec = page + first_free; |
|
125 |
||
126 |
mach_write_to_2(rec, first_free + 4 + len); |
|
127 |
mach_write_to_2(rec + 2 + len, first_free); |
|
128 |
||
129 |
mach_write_to_2(page + TRX_UNDO_PAGE_HDR + TRX_UNDO_PAGE_FREE, |
|
130 |
first_free + 4 + len); |
|
131 |
ut_memcpy(rec + 2, ptr, len); |
|
132 |
||
133 |
return(ptr + len); |
|
134 |
}
|
|
135 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
136 |
#ifndef UNIV_HOTBACKUP
|
137 |
/**********************************************************************//**
|
|
138 |
Calculates the free space left for extending an undo log record.
|
|
139 |
@return bytes left */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
140 |
UNIV_INLINE
|
141 |
ulint
|
|
142 |
trx_undo_left( |
|
143 |
/*==========*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
144 |
const page_t* page, /*!< in: undo log page */ |
145 |
const byte* ptr) /*!< in: pointer to page */ |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
146 |
{
|
147 |
/* The '- 10' is a safety margin, in case we have some small
|
|
148 |
calculation error below */
|
|
149 |
||
150 |
return(UNIV_PAGE_SIZE - (ptr - page) - 10 - FIL_PAGE_DATA_END); |
|
151 |
}
|
|
152 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
153 |
/**********************************************************************//**
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
154 |
Set the next and previous pointers in the undo page for the undo record
|
155 |
that was written to ptr. Update the first free value by the number of bytes
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
156 |
written for this undo record.
|
157 |
@return offset of the inserted entry on the page if succeeded, 0 if fail */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
158 |
static
|
159 |
ulint
|
|
160 |
trx_undo_page_set_next_prev_and_add( |
|
161 |
/*================================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
162 |
page_t* undo_page, /*!< in/out: undo log page */ |
163 |
byte* ptr, /*!< in: ptr up to where data has been |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
164 |
written on this undo page. */
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
165 |
mtr_t* mtr) /*!< in: mtr */ |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
166 |
{
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
167 |
ulint first_free; /*!< offset within undo_page */ |
168 |
ulint end_of_rec; /*!< offset within undo_page */ |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
169 |
byte* ptr_to_first_free; |
170 |
/* pointer within undo_page
|
|
171 |
that points to the next free
|
|
172 |
offset value within undo_page.*/
|
|
173 |
||
174 |
ut_ad(ptr > undo_page); |
|
175 |
ut_ad(ptr < undo_page + UNIV_PAGE_SIZE); |
|
176 |
||
177 |
if (UNIV_UNLIKELY(trx_undo_left(undo_page, ptr) < 2)) { |
|
178 |
||
179 |
return(0); |
|
180 |
}
|
|
181 |
||
182 |
ptr_to_first_free = undo_page + TRX_UNDO_PAGE_HDR + TRX_UNDO_PAGE_FREE; |
|
183 |
||
184 |
first_free = mach_read_from_2(ptr_to_first_free); |
|
185 |
||
186 |
/* Write offset of the previous undo log record */
|
|
187 |
mach_write_to_2(ptr, first_free); |
|
188 |
ptr += 2; |
|
189 |
||
190 |
end_of_rec = ptr - undo_page; |
|
191 |
||
192 |
/* Write offset of the next undo log record */
|
|
193 |
mach_write_to_2(undo_page + first_free, end_of_rec); |
|
194 |
||
195 |
/* Update the offset to first free undo record */
|
|
196 |
mach_write_to_2(ptr_to_first_free, end_of_rec); |
|
197 |
||
198 |
/* Write this log entry to the UNDO log */
|
|
199 |
trx_undof_page_add_undo_rec_log(undo_page, first_free, |
|
200 |
end_of_rec, mtr); |
|
201 |
||
202 |
return(first_free); |
|
203 |
}
|
|
204 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
205 |
/**********************************************************************//**
|
206 |
Reports in the undo log of an insert of a clustered index record.
|
|
207 |
@return offset of the inserted entry on the page if succeed, 0 if fail */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
208 |
static
|
209 |
ulint
|
|
210 |
trx_undo_page_report_insert( |
|
211 |
/*========================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
212 |
page_t* undo_page, /*!< in: undo log page */ |
213 |
trx_t* trx, /*!< in: transaction */ |
|
214 |
dict_index_t* index, /*!< in: clustered index */ |
|
215 |
const dtuple_t* clust_entry, /*!< in: index entry which will be |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
216 |
inserted to the clustered index */
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
217 |
mtr_t* mtr) /*!< in: mtr */ |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
218 |
{
|
219 |
ulint first_free; |
|
220 |
byte* ptr; |
|
221 |
ulint i; |
|
222 |
||
223 |
ut_ad(dict_index_is_clust(index)); |
|
224 |
ut_ad(mach_read_from_2(undo_page + TRX_UNDO_PAGE_HDR |
|
225 |
+ TRX_UNDO_PAGE_TYPE) == TRX_UNDO_INSERT); |
|
226 |
||
227 |
first_free = mach_read_from_2(undo_page + TRX_UNDO_PAGE_HDR |
|
228 |
+ TRX_UNDO_PAGE_FREE); |
|
229 |
ptr = undo_page + first_free; |
|
230 |
||
231 |
ut_ad(first_free <= UNIV_PAGE_SIZE); |
|
232 |
||
233 |
if (trx_undo_left(undo_page, ptr) < 2 + 1 + 11 + 11) { |
|
234 |
||
235 |
/* Not enough space for writing the general parameters */
|
|
236 |
||
237 |
return(0); |
|
238 |
}
|
|
239 |
||
240 |
/* Reserve 2 bytes for the pointer to the next undo log record */
|
|
241 |
ptr += 2; |
|
242 |
||
243 |
/* Store first some general parameters to the undo log */
|
|
244 |
*ptr++ = TRX_UNDO_INSERT_REC; |
|
1819.9.31
by Marko Mäkelä, Stewart Smith
Merge Revision revid:marko.makela@oracle.com-20100623110659-pk5bqnmo0j7hj6md from MySQL InnoDB |
245 |
ptr += mach_ull_write_much_compressed(ptr, trx->undo_no); |
246 |
ptr += mach_ull_write_much_compressed(ptr, index->table->id); |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
247 |
/*----------------------------------------*/
|
248 |
/* Store then the fields required to uniquely determine the record
|
|
249 |
to be inserted in the clustered index */
|
|
250 |
||
251 |
for (i = 0; i < dict_index_get_n_unique(index); i++) { |
|
252 |
||
253 |
const dfield_t* field = dtuple_get_nth_field(clust_entry, i); |
|
254 |
ulint flen = dfield_get_len(field); |
|
255 |
||
256 |
if (trx_undo_left(undo_page, ptr) < 5) { |
|
257 |
||
258 |
return(0); |
|
259 |
}
|
|
260 |
||
261 |
ptr += mach_write_compressed(ptr, flen); |
|
262 |
||
263 |
if (flen != UNIV_SQL_NULL) { |
|
264 |
if (trx_undo_left(undo_page, ptr) < flen) { |
|
265 |
||
266 |
return(0); |
|
267 |
}
|
|
268 |
||
269 |
ut_memcpy(ptr, dfield_get_data(field), flen); |
|
270 |
ptr += flen; |
|
271 |
}
|
|
272 |
}
|
|
273 |
||
274 |
return(trx_undo_page_set_next_prev_and_add(undo_page, ptr, mtr)); |
|
275 |
}
|
|
276 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
277 |
/**********************************************************************//**
|
278 |
Reads from an undo log record the general parameters.
|
|
279 |
@return remaining part of undo log record after reading these values */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
280 |
UNIV_INTERN
|
281 |
byte* |
|
282 |
trx_undo_rec_get_pars( |
|
283 |
/*==================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
284 |
trx_undo_rec_t* undo_rec, /*!< in: undo log record */ |
285 |
ulint* type, /*!< out: undo record type: |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
286 |
TRX_UNDO_INSERT_REC, ... */
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
287 |
ulint* cmpl_info, /*!< out: compiler info, relevant only |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
288 |
for update type records */
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
289 |
ibool* updated_extern, /*!< out: TRUE if we updated an |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
290 |
externally stored fild */
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
291 |
undo_no_t* undo_no, /*!< out: undo log record number */ |
1819.9.31
by Marko Mäkelä, Stewart Smith
Merge Revision revid:marko.makela@oracle.com-20100623110659-pk5bqnmo0j7hj6md from MySQL InnoDB |
292 |
table_id_t* table_id) /*!< out: table id */ |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
293 |
{
|
294 |
byte* ptr; |
|
295 |
ulint type_cmpl; |
|
296 |
||
297 |
ptr = undo_rec + 2; |
|
298 |
||
299 |
type_cmpl = mach_read_from_1(ptr); |
|
300 |
ptr++; |
|
301 |
||
302 |
if (type_cmpl & TRX_UNDO_UPD_EXTERN) { |
|
303 |
*updated_extern = TRUE; |
|
304 |
type_cmpl -= TRX_UNDO_UPD_EXTERN; |
|
305 |
} else { |
|
306 |
*updated_extern = FALSE; |
|
307 |
}
|
|
308 |
||
309 |
*type = type_cmpl & (TRX_UNDO_CMPL_INFO_MULT - 1); |
|
310 |
*cmpl_info = type_cmpl / TRX_UNDO_CMPL_INFO_MULT; |
|
311 |
||
1819.9.31
by Marko Mäkelä, Stewart Smith
Merge Revision revid:marko.makela@oracle.com-20100623110659-pk5bqnmo0j7hj6md from MySQL InnoDB |
312 |
*undo_no = mach_ull_read_much_compressed(ptr); |
313 |
ptr += mach_ull_get_much_compressed_size(*undo_no); |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
314 |
|
1819.9.31
by Marko Mäkelä, Stewart Smith
Merge Revision revid:marko.makela@oracle.com-20100623110659-pk5bqnmo0j7hj6md from MySQL InnoDB |
315 |
*table_id = mach_ull_read_much_compressed(ptr); |
316 |
ptr += mach_ull_get_much_compressed_size(*table_id); |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
317 |
|
318 |
return(ptr); |
|
319 |
}
|
|
320 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
321 |
/**********************************************************************//**
|
322 |
Reads from an undo log record a stored column value.
|
|
323 |
@return remaining part of undo log record after reading these values */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
324 |
static
|
325 |
byte* |
|
326 |
trx_undo_rec_get_col_val( |
|
327 |
/*=====================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
328 |
byte* ptr, /*!< in: pointer to remaining part of undo log record */ |
329 |
byte** field, /*!< out: pointer to stored field */ |
|
330 |
ulint* len, /*!< out: length of the field, or UNIV_SQL_NULL */ |
|
331 |
ulint* orig_len)/*!< out: original length of the locally |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
332 |
stored part of an externally stored column, or 0 */
|
333 |
{
|
|
334 |
*len = mach_read_compressed(ptr); |
|
335 |
ptr += mach_get_compressed_size(*len); |
|
336 |
||
337 |
*orig_len = 0; |
|
338 |
||
339 |
switch (*len) { |
|
340 |
case UNIV_SQL_NULL: |
|
341 |
*field = NULL; |
|
342 |
break; |
|
343 |
case UNIV_EXTERN_STORAGE_FIELD: |
|
344 |
*orig_len = mach_read_compressed(ptr); |
|
345 |
ptr += mach_get_compressed_size(*orig_len); |
|
346 |
*len = mach_read_compressed(ptr); |
|
347 |
ptr += mach_get_compressed_size(*len); |
|
348 |
*field = ptr; |
|
349 |
ptr += *len; |
|
350 |
||
351 |
ut_ad(*orig_len >= BTR_EXTERN_FIELD_REF_SIZE); |
|
352 |
ut_ad(*len > *orig_len); |
|
1819.5.270
by Marko Makela
Merge Revision revid:mmakela@bk-internal.mysql.com-20100415070122-1nxji8ym4mao13ao from MySQL InnoDB |
353 |
/* @see dtuple_convert_big_rec() */
|
354 |
ut_ad(*len >= BTR_EXTERN_FIELD_REF_SIZE * 2); |
|
355 |
/* we do not have access to index->table here
|
|
356 |
ut_ad(dict_table_get_format(index->table) >= DICT_TF_FORMAT_ZIP
|
|
357 |
|| *len >= REC_MAX_INDEX_COL_LEN
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
358 |
+ BTR_EXTERN_FIELD_REF_SIZE);
|
1819.5.270
by Marko Makela
Merge Revision revid:mmakela@bk-internal.mysql.com-20100415070122-1nxji8ym4mao13ao from MySQL InnoDB |
359 |
*/
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
360 |
|
361 |
*len += UNIV_EXTERN_STORAGE_FIELD; |
|
362 |
break; |
|
363 |
default: |
|
364 |
*field = ptr; |
|
365 |
if (*len >= UNIV_EXTERN_STORAGE_FIELD) { |
|
366 |
ptr += *len - UNIV_EXTERN_STORAGE_FIELD; |
|
367 |
} else { |
|
368 |
ptr += *len; |
|
369 |
}
|
|
370 |
}
|
|
371 |
||
372 |
return(ptr); |
|
373 |
}
|
|
374 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
375 |
/*******************************************************************//**
|
376 |
Builds a row reference from an undo log record.
|
|
377 |
@return pointer to remaining part of undo record */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
378 |
UNIV_INTERN
|
379 |
byte* |
|
380 |
trx_undo_rec_get_row_ref( |
|
381 |
/*=====================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
382 |
byte* ptr, /*!< in: remaining part of a copy of an undo log |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
383 |
record, at the start of the row reference;
|
384 |
NOTE that this copy of the undo log record must
|
|
385 |
be preserved as long as the row reference is
|
|
386 |
used, as we do NOT copy the data in the
|
|
387 |
record! */
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
388 |
dict_index_t* index, /*!< in: clustered index */ |
389 |
dtuple_t** ref, /*!< out, own: row reference */ |
|
390 |
mem_heap_t* heap) /*!< in: memory heap from which the memory |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
391 |
needed is allocated */
|
392 |
{
|
|
393 |
ulint ref_len; |
|
394 |
ulint i; |
|
395 |
||
396 |
ut_ad(index && ptr && ref && heap); |
|
397 |
ut_a(dict_index_is_clust(index)); |
|
398 |
||
399 |
ref_len = dict_index_get_n_unique(index); |
|
400 |
||
401 |
*ref = dtuple_create(heap, ref_len); |
|
402 |
||
403 |
dict_index_copy_types(*ref, index, ref_len); |
|
404 |
||
405 |
for (i = 0; i < ref_len; i++) { |
|
406 |
dfield_t* dfield; |
|
407 |
byte* field; |
|
408 |
ulint len; |
|
409 |
ulint orig_len; |
|
410 |
||
411 |
dfield = dtuple_get_nth_field(*ref, i); |
|
412 |
||
413 |
ptr = trx_undo_rec_get_col_val(ptr, &field, &len, &orig_len); |
|
414 |
||
415 |
dfield_set_data(dfield, field, len); |
|
416 |
}
|
|
417 |
||
418 |
return(ptr); |
|
419 |
}
|
|
420 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
421 |
/*******************************************************************//**
|
422 |
Skips a row reference from an undo log record.
|
|
423 |
@return pointer to remaining part of undo record */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
424 |
UNIV_INTERN
|
425 |
byte* |
|
426 |
trx_undo_rec_skip_row_ref( |
|
427 |
/*======================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
428 |
byte* ptr, /*!< in: remaining part in update undo log |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
429 |
record, at the start of the row reference */
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
430 |
dict_index_t* index) /*!< in: clustered index */ |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
431 |
{
|
432 |
ulint ref_len; |
|
433 |
ulint i; |
|
434 |
||
435 |
ut_ad(index && ptr); |
|
436 |
ut_a(dict_index_is_clust(index)); |
|
437 |
||
438 |
ref_len = dict_index_get_n_unique(index); |
|
439 |
||
440 |
for (i = 0; i < ref_len; i++) { |
|
441 |
byte* field; |
|
442 |
ulint len; |
|
443 |
ulint orig_len; |
|
444 |
||
445 |
ptr = trx_undo_rec_get_col_val(ptr, &field, &len, &orig_len); |
|
446 |
}
|
|
447 |
||
448 |
return(ptr); |
|
449 |
}
|
|
450 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
451 |
/**********************************************************************//**
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
452 |
Fetch a prefix of an externally stored column, for writing to the undo log
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
453 |
of an update or delete marking of a clustered index record.
|
454 |
@return ext_buf */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
455 |
static
|
456 |
byte* |
|
457 |
trx_undo_page_fetch_ext( |
|
458 |
/*====================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
459 |
byte* ext_buf, /*!< in: a buffer of |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
460 |
REC_MAX_INDEX_COL_LEN
|
461 |
+ BTR_EXTERN_FIELD_REF_SIZE */
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
462 |
ulint zip_size, /*!< compressed page size in bytes, |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
463 |
or 0 for uncompressed BLOB */
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
464 |
const byte* field, /*!< in: an externally stored column */ |
465 |
ulint* len) /*!< in: length of field; |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
466 |
out: used length of ext_buf */
|
467 |
{
|
|
468 |
/* Fetch the BLOB. */
|
|
469 |
ulint ext_len = btr_copy_externally_stored_field_prefix( |
|
470 |
ext_buf, REC_MAX_INDEX_COL_LEN, zip_size, field, *len); |
|
471 |
/* BLOBs should always be nonempty. */
|
|
472 |
ut_a(ext_len); |
|
473 |
/* Append the BLOB pointer to the prefix. */
|
|
474 |
memcpy(ext_buf + ext_len, |
|
475 |
field + *len - BTR_EXTERN_FIELD_REF_SIZE, |
|
476 |
BTR_EXTERN_FIELD_REF_SIZE); |
|
477 |
*len = ext_len + BTR_EXTERN_FIELD_REF_SIZE; |
|
478 |
return(ext_buf); |
|
479 |
}
|
|
480 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
481 |
/**********************************************************************//**
|
482 |
Writes to the undo log a prefix of an externally stored column.
|
|
483 |
@return undo log position */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
484 |
static
|
485 |
byte* |
|
486 |
trx_undo_page_report_modify_ext( |
|
487 |
/*============================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
488 |
byte* ptr, /*!< in: undo log position, |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
489 |
at least 15 bytes must be available */
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
490 |
byte* ext_buf, /*!< in: a buffer of |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
491 |
REC_MAX_INDEX_COL_LEN
|
492 |
+ BTR_EXTERN_FIELD_REF_SIZE,
|
|
493 |
or NULL when should not fetch
|
|
494 |
a longer prefix */
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
495 |
ulint zip_size, /*!< compressed page size in bytes, |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
496 |
or 0 for uncompressed BLOB */
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
497 |
const byte** field, /*!< in/out: the locally stored part of |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
498 |
the externally stored column */
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
499 |
ulint* len) /*!< in/out: length of field, in bytes */ |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
500 |
{
|
501 |
if (ext_buf) { |
|
502 |
/* If an ordering column is externally stored, we will
|
|
503 |
have to store a longer prefix of the field. In this
|
|
504 |
case, write to the log a marker followed by the
|
|
505 |
original length and the real length of the field. */
|
|
506 |
ptr += mach_write_compressed(ptr, UNIV_EXTERN_STORAGE_FIELD); |
|
507 |
||
508 |
ptr += mach_write_compressed(ptr, *len); |
|
509 |
||
510 |
*field = trx_undo_page_fetch_ext(ext_buf, zip_size, |
|
511 |
*field, len); |
|
512 |
||
513 |
ptr += mach_write_compressed(ptr, *len); |
|
514 |
} else { |
|
515 |
ptr += mach_write_compressed(ptr, UNIV_EXTERN_STORAGE_FIELD |
|
516 |
+ *len); |
|
517 |
}
|
|
518 |
||
519 |
return(ptr); |
|
520 |
}
|
|
521 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
522 |
/**********************************************************************//**
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
523 |
Reports in the undo log of an update or delete marking of a clustered index
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
524 |
record.
|
525 |
@return byte offset of the inserted undo log entry on the page if
|
|
526 |
succeed, 0 if fail */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
527 |
static
|
528 |
ulint
|
|
529 |
trx_undo_page_report_modify( |
|
530 |
/*========================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
531 |
page_t* undo_page, /*!< in: undo log page */ |
532 |
trx_t* trx, /*!< in: transaction */ |
|
533 |
dict_index_t* index, /*!< in: clustered index where update or |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
534 |
delete marking is done */
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
535 |
const rec_t* rec, /*!< in: clustered index record which |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
536 |
has NOT yet been modified */
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
537 |
const ulint* offsets, /*!< in: rec_get_offsets(rec, index) */ |
538 |
const upd_t* update, /*!< in: update vector which tells the |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
539 |
columns to be updated; in the case of
|
540 |
a delete, this should be set to NULL */
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
541 |
ulint cmpl_info, /*!< in: compiler info on secondary |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
542 |
index updates */
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
543 |
mtr_t* mtr) /*!< in: mtr */ |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
544 |
{
|
545 |
dict_table_t* table; |
|
546 |
ulint first_free; |
|
547 |
byte* ptr; |
|
548 |
const byte* field; |
|
549 |
ulint flen; |
|
550 |
ulint col_no; |
|
551 |
ulint type_cmpl; |
|
552 |
byte* type_cmpl_ptr; |
|
553 |
ulint i; |
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
554 |
trx_id_t trx_id; |
641.2.1
by Monty Taylor
InnoDB Plugin 1.0.2 |
555 |
ibool ignore_prefix = FALSE; |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
556 |
byte ext_buf[REC_MAX_INDEX_COL_LEN |
557 |
+ BTR_EXTERN_FIELD_REF_SIZE]; |
|
558 |
||
559 |
ut_a(dict_index_is_clust(index)); |
|
560 |
ut_ad(rec_offs_validate(rec, index, offsets)); |
|
561 |
ut_ad(mach_read_from_2(undo_page + TRX_UNDO_PAGE_HDR |
|
562 |
+ TRX_UNDO_PAGE_TYPE) == TRX_UNDO_UPDATE); |
|
563 |
table = index->table; |
|
564 |
||
565 |
first_free = mach_read_from_2(undo_page + TRX_UNDO_PAGE_HDR |
|
566 |
+ TRX_UNDO_PAGE_FREE); |
|
567 |
ptr = undo_page + first_free; |
|
568 |
||
569 |
ut_ad(first_free <= UNIV_PAGE_SIZE); |
|
570 |
||
571 |
if (trx_undo_left(undo_page, ptr) < 50) { |
|
572 |
||
573 |
/* NOTE: the value 50 must be big enough so that the general
|
|
574 |
fields written below fit on the undo log page */
|
|
575 |
||
576 |
return(0); |
|
577 |
}
|
|
578 |
||
579 |
/* Reserve 2 bytes for the pointer to the next undo log record */
|
|
580 |
ptr += 2; |
|
581 |
||
582 |
/* Store first some general parameters to the undo log */
|
|
583 |
||
584 |
if (!update) { |
|
585 |
type_cmpl = TRX_UNDO_DEL_MARK_REC; |
|
586 |
} else if (rec_get_deleted_flag(rec, dict_table_is_comp(table))) { |
|
587 |
type_cmpl = TRX_UNDO_UPD_DEL_REC; |
|
641.2.1
by Monty Taylor
InnoDB Plugin 1.0.2 |
588 |
/* We are about to update a delete marked record.
|
589 |
We don't typically need the prefix in this case unless
|
|
590 |
the delete marking is done by the same transaction
|
|
591 |
(which we check below). */
|
|
592 |
ignore_prefix = TRUE; |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
593 |
} else { |
594 |
type_cmpl = TRX_UNDO_UPD_EXIST_REC; |
|
595 |
}
|
|
596 |
||
597 |
type_cmpl |= cmpl_info * TRX_UNDO_CMPL_INFO_MULT; |
|
598 |
type_cmpl_ptr = ptr; |
|
599 |
||
600 |
*ptr++ = (byte) type_cmpl; |
|
1819.9.31
by Marko Mäkelä, Stewart Smith
Merge Revision revid:marko.makela@oracle.com-20100623110659-pk5bqnmo0j7hj6md from MySQL InnoDB |
601 |
ptr += mach_ull_write_much_compressed(ptr, trx->undo_no); |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
602 |
|
1819.9.31
by Marko Mäkelä, Stewart Smith
Merge Revision revid:marko.makela@oracle.com-20100623110659-pk5bqnmo0j7hj6md from MySQL InnoDB |
603 |
ptr += mach_ull_write_much_compressed(ptr, table->id); |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
604 |
|
605 |
/*----------------------------------------*/
|
|
606 |
/* Store the state of the info bits */
|
|
607 |
||
608 |
*ptr++ = (byte) rec_get_info_bits(rec, dict_table_is_comp(table)); |
|
609 |
||
610 |
/* Store the values of the system columns */
|
|
611 |
field = rec_get_nth_field(rec, offsets, |
|
612 |
dict_index_get_sys_col_pos( |
|
613 |
index, DATA_TRX_ID), &flen); |
|
614 |
ut_ad(flen == DATA_TRX_ID_LEN); |
|
615 |
||
641.2.1
by Monty Taylor
InnoDB Plugin 1.0.2 |
616 |
trx_id = trx_read_trx_id(field); |
617 |
||
618 |
/* If it is an update of a delete marked record, then we are
|
|
619 |
allowed to ignore blob prefixes if the delete marking was done
|
|
620 |
by some other trx as it must have committed by now for us to
|
|
621 |
allow an over-write. */
|
|
622 |
if (ignore_prefix) { |
|
1819.9.31
by Marko Mäkelä, Stewart Smith
Merge Revision revid:marko.makela@oracle.com-20100623110659-pk5bqnmo0j7hj6md from MySQL InnoDB |
623 |
ignore_prefix = (trx_id != trx->id); |
641.2.1
by Monty Taylor
InnoDB Plugin 1.0.2 |
624 |
}
|
1819.9.31
by Marko Mäkelä, Stewart Smith
Merge Revision revid:marko.makela@oracle.com-20100623110659-pk5bqnmo0j7hj6md from MySQL InnoDB |
625 |
ptr += mach_ull_write_compressed(ptr, trx_id); |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
626 |
|
627 |
field = rec_get_nth_field(rec, offsets, |
|
628 |
dict_index_get_sys_col_pos( |
|
629 |
index, DATA_ROLL_PTR), &flen); |
|
630 |
ut_ad(flen == DATA_ROLL_PTR_LEN); |
|
631 |
||
1819.9.31
by Marko Mäkelä, Stewart Smith
Merge Revision revid:marko.makela@oracle.com-20100623110659-pk5bqnmo0j7hj6md from MySQL InnoDB |
632 |
ptr += mach_ull_write_compressed(ptr, trx_read_roll_ptr(field)); |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
633 |
|
634 |
/*----------------------------------------*/
|
|
635 |
/* Store then the fields required to uniquely determine the
|
|
636 |
record which will be modified in the clustered index */
|
|
637 |
||
638 |
for (i = 0; i < dict_index_get_n_unique(index); i++) { |
|
639 |
||
640 |
field = rec_get_nth_field(rec, offsets, i, &flen); |
|
641 |
||
642 |
/* The ordering columns must not be stored externally. */
|
|
643 |
ut_ad(!rec_offs_nth_extern(offsets, i)); |
|
644 |
ut_ad(dict_index_get_nth_col(index, i)->ord_part); |
|
645 |
||
646 |
if (trx_undo_left(undo_page, ptr) < 5) { |
|
647 |
||
648 |
return(0); |
|
649 |
}
|
|
650 |
||
651 |
ptr += mach_write_compressed(ptr, flen); |
|
652 |
||
653 |
if (flen != UNIV_SQL_NULL) { |
|
654 |
if (trx_undo_left(undo_page, ptr) < flen) { |
|
655 |
||
656 |
return(0); |
|
657 |
}
|
|
658 |
||
659 |
ut_memcpy(ptr, field, flen); |
|
660 |
ptr += flen; |
|
661 |
}
|
|
662 |
}
|
|
663 |
||
664 |
/*----------------------------------------*/
|
|
665 |
/* Save to the undo log the old values of the columns to be updated. */
|
|
666 |
||
667 |
if (update) { |
|
668 |
if (trx_undo_left(undo_page, ptr) < 5) { |
|
669 |
||
670 |
return(0); |
|
671 |
}
|
|
672 |
||
673 |
ptr += mach_write_compressed(ptr, upd_get_n_fields(update)); |
|
674 |
||
675 |
for (i = 0; i < upd_get_n_fields(update); i++) { |
|
676 |
||
677 |
ulint pos = upd_get_nth_field(update, i)->field_no; |
|
678 |
||
679 |
/* Write field number to undo log */
|
|
680 |
if (trx_undo_left(undo_page, ptr) < 5) { |
|
681 |
||
682 |
return(0); |
|
683 |
}
|
|
684 |
||
685 |
ptr += mach_write_compressed(ptr, pos); |
|
686 |
||
687 |
/* Save the old value of field */
|
|
688 |
field = rec_get_nth_field(rec, offsets, pos, &flen); |
|
689 |
||
690 |
if (trx_undo_left(undo_page, ptr) < 15) { |
|
691 |
||
692 |
return(0); |
|
693 |
}
|
|
694 |
||
695 |
if (rec_offs_nth_extern(offsets, pos)) { |
|
696 |
ptr = trx_undo_page_report_modify_ext( |
|
697 |
ptr, |
|
698 |
dict_index_get_nth_col(index, pos) |
|
699 |
->ord_part |
|
641.2.1
by Monty Taylor
InnoDB Plugin 1.0.2 |
700 |
&& !ignore_prefix |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
701 |
&& flen < REC_MAX_INDEX_COL_LEN |
702 |
? ext_buf : NULL, |
|
703 |
dict_table_zip_size(table), |
|
704 |
&field, &flen); |
|
705 |
||
706 |
/* Notify purge that it eventually has to
|
|
707 |
free the old externally stored field */
|
|
708 |
||
709 |
trx->update_undo->del_marks = TRUE; |
|
710 |
||
711 |
*type_cmpl_ptr |= TRX_UNDO_UPD_EXTERN; |
|
712 |
} else { |
|
713 |
ptr += mach_write_compressed(ptr, flen); |
|
714 |
}
|
|
715 |
||
716 |
if (flen != UNIV_SQL_NULL) { |
|
717 |
if (trx_undo_left(undo_page, ptr) < flen) { |
|
718 |
||
719 |
return(0); |
|
720 |
}
|
|
721 |
||
722 |
ut_memcpy(ptr, field, flen); |
|
723 |
ptr += flen; |
|
724 |
}
|
|
725 |
}
|
|
726 |
}
|
|
727 |
||
728 |
/*----------------------------------------*/
|
|
729 |
/* In the case of a delete marking, and also in the case of an update
|
|
730 |
where any ordering field of any index changes, store the values of all
|
|
731 |
columns which occur as ordering fields in any index. This info is used
|
|
732 |
in the purge of old versions where we use it to build and search the
|
|
733 |
delete marked index records, to look if we can remove them from the
|
|
734 |
index tree. Note that starting from 4.0.14 also externally stored
|
|
735 |
fields can be ordering in some index. Starting from 5.2, we no longer
|
|
736 |
store REC_MAX_INDEX_COL_LEN first bytes to the undo log record,
|
|
737 |
but we can construct the column prefix fields in the index by
|
|
738 |
fetching the first page of the BLOB that is pointed to by the
|
|
739 |
clustered index. This works also in crash recovery, because all pages
|
|
740 |
(including BLOBs) are recovered before anything is rolled back. */
|
|
741 |
||
742 |
if (!update || !(cmpl_info & UPD_NODE_NO_ORD_CHANGE)) { |
|
743 |
byte* old_ptr = ptr; |
|
744 |
||
745 |
trx->update_undo->del_marks = TRUE; |
|
746 |
||
747 |
if (trx_undo_left(undo_page, ptr) < 5) { |
|
748 |
||
749 |
return(0); |
|
750 |
}
|
|
751 |
||
752 |
/* Reserve 2 bytes to write the number of bytes the stored
|
|
753 |
fields take in this undo record */
|
|
754 |
||
755 |
ptr += 2; |
|
756 |
||
757 |
for (col_no = 0; col_no < dict_table_get_n_cols(table); |
|
758 |
col_no++) { |
|
759 |
||
760 |
const dict_col_t* col |
|
761 |
= dict_table_get_nth_col(table, col_no); |
|
762 |
||
763 |
if (col->ord_part) { |
|
764 |
ulint pos; |
|
765 |
||
766 |
/* Write field number to undo log */
|
|
767 |
if (trx_undo_left(undo_page, ptr) < 5 + 15) { |
|
768 |
||
769 |
return(0); |
|
770 |
}
|
|
771 |
||
772 |
pos = dict_index_get_nth_col_pos(index, |
|
773 |
col_no); |
|
774 |
ptr += mach_write_compressed(ptr, pos); |
|
775 |
||
776 |
/* Save the old value of field */
|
|
777 |
field = rec_get_nth_field(rec, offsets, pos, |
|
778 |
&flen); |
|
779 |
||
780 |
if (rec_offs_nth_extern(offsets, pos)) { |
|
781 |
ptr = trx_undo_page_report_modify_ext( |
|
782 |
ptr, |
|
783 |
flen < REC_MAX_INDEX_COL_LEN |
|
641.2.1
by Monty Taylor
InnoDB Plugin 1.0.2 |
784 |
&& !ignore_prefix |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
785 |
? ext_buf : NULL, |
786 |
dict_table_zip_size(table), |
|
787 |
&field, &flen); |
|
788 |
} else { |
|
789 |
ptr += mach_write_compressed( |
|
790 |
ptr, flen); |
|
791 |
}
|
|
792 |
||
793 |
if (flen != UNIV_SQL_NULL) { |
|
794 |
if (trx_undo_left(undo_page, ptr) |
|
795 |
< flen) { |
|
796 |
||
797 |
return(0); |
|
798 |
}
|
|
799 |
||
800 |
ut_memcpy(ptr, field, flen); |
|
801 |
ptr += flen; |
|
802 |
}
|
|
803 |
}
|
|
804 |
}
|
|
805 |
||
806 |
mach_write_to_2(old_ptr, ptr - old_ptr); |
|
807 |
}
|
|
808 |
||
809 |
/*----------------------------------------*/
|
|
810 |
/* Write pointers to the previous and the next undo log records */
|
|
811 |
if (trx_undo_left(undo_page, ptr) < 2) { |
|
812 |
||
813 |
return(0); |
|
814 |
}
|
|
815 |
||
816 |
mach_write_to_2(ptr, first_free); |
|
817 |
ptr += 2; |
|
818 |
mach_write_to_2(undo_page + first_free, ptr - undo_page); |
|
819 |
||
820 |
mach_write_to_2(undo_page + TRX_UNDO_PAGE_HDR + TRX_UNDO_PAGE_FREE, |
|
821 |
ptr - undo_page); |
|
822 |
||
823 |
/* Write to the REDO log about this change in the UNDO log */
|
|
824 |
||
825 |
trx_undof_page_add_undo_rec_log(undo_page, first_free, |
|
826 |
ptr - undo_page, mtr); |
|
827 |
return(first_free); |
|
828 |
}
|
|
829 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
830 |
/**********************************************************************//**
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
831 |
Reads from an undo log update record the system field values of the old
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
832 |
version.
|
833 |
@return remaining part of undo log record after reading these values */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
834 |
UNIV_INTERN
|
835 |
byte* |
|
836 |
trx_undo_update_rec_get_sys_cols( |
|
837 |
/*=============================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
838 |
byte* ptr, /*!< in: remaining part of undo |
839 |
log record after reading
|
|
840 |
general parameters */
|
|
841 |
trx_id_t* trx_id, /*!< out: trx id */ |
|
842 |
roll_ptr_t* roll_ptr, /*!< out: roll ptr */ |
|
843 |
ulint* info_bits) /*!< out: info bits state */ |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
844 |
{
|
845 |
/* Read the state of the info bits */
|
|
846 |
*info_bits = mach_read_from_1(ptr); |
|
847 |
ptr += 1; |
|
848 |
||
849 |
/* Read the values of the system columns */
|
|
850 |
||
1819.9.31
by Marko Mäkelä, Stewart Smith
Merge Revision revid:marko.makela@oracle.com-20100623110659-pk5bqnmo0j7hj6md from MySQL InnoDB |
851 |
*trx_id = mach_ull_read_compressed(ptr); |
852 |
ptr += mach_ull_get_compressed_size(*trx_id); |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
853 |
|
1819.9.31
by Marko Mäkelä, Stewart Smith
Merge Revision revid:marko.makela@oracle.com-20100623110659-pk5bqnmo0j7hj6md from MySQL InnoDB |
854 |
*roll_ptr = mach_ull_read_compressed(ptr); |
855 |
ptr += mach_ull_get_compressed_size(*roll_ptr); |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
856 |
|
857 |
return(ptr); |
|
858 |
}
|
|
859 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
860 |
/**********************************************************************//**
|
861 |
Reads from an update undo log record the number of updated fields.
|
|
862 |
@return remaining part of undo log record after reading this value */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
863 |
UNIV_INLINE
|
864 |
byte* |
|
865 |
trx_undo_update_rec_get_n_upd_fields( |
|
866 |
/*=================================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
867 |
byte* ptr, /*!< in: pointer to remaining part of undo log record */ |
868 |
ulint* n) /*!< out: number of fields */ |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
869 |
{
|
870 |
*n = mach_read_compressed(ptr); |
|
871 |
ptr += mach_get_compressed_size(*n); |
|
872 |
||
873 |
return(ptr); |
|
874 |
}
|
|
875 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
876 |
/**********************************************************************//**
|
877 |
Reads from an update undo log record a stored field number.
|
|
878 |
@return remaining part of undo log record after reading this value */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
879 |
UNIV_INLINE
|
880 |
byte* |
|
881 |
trx_undo_update_rec_get_field_no( |
|
882 |
/*=============================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
883 |
byte* ptr, /*!< in: pointer to remaining part of undo log record */ |
884 |
ulint* field_no)/*!< out: field number */ |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
885 |
{
|
886 |
*field_no = mach_read_compressed(ptr); |
|
887 |
ptr += mach_get_compressed_size(*field_no); |
|
888 |
||
889 |
return(ptr); |
|
890 |
}
|
|
891 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
892 |
/*******************************************************************//**
|
893 |
Builds an update vector based on a remaining part of an undo log record.
|
|
894 |
@return remaining part of the record, NULL if an error detected, which
|
|
895 |
means that the record is corrupted */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
896 |
UNIV_INTERN
|
897 |
byte* |
|
898 |
trx_undo_update_rec_get_update( |
|
899 |
/*===========================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
900 |
byte* ptr, /*!< in: remaining part in update undo log |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
901 |
record, after reading the row reference
|
902 |
NOTE that this copy of the undo log record must
|
|
903 |
be preserved as long as the update vector is
|
|
904 |
used, as we do NOT copy the data in the
|
|
905 |
record! */
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
906 |
dict_index_t* index, /*!< in: clustered index */ |
907 |
ulint type, /*!< in: TRX_UNDO_UPD_EXIST_REC, |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
908 |
TRX_UNDO_UPD_DEL_REC, or
|
909 |
TRX_UNDO_DEL_MARK_REC; in the last case,
|
|
910 |
only trx id and roll ptr fields are added to
|
|
911 |
the update vector */
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
912 |
trx_id_t trx_id, /*!< in: transaction id from this undo record */ |
913 |
roll_ptr_t roll_ptr,/*!< in: roll pointer from this undo record */ |
|
914 |
ulint info_bits,/*!< in: info bits from this undo record */ |
|
915 |
trx_t* trx, /*!< in: transaction */ |
|
916 |
mem_heap_t* heap, /*!< in: memory heap from which the memory |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
917 |
needed is allocated */
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
918 |
upd_t** upd) /*!< out, own: update vector */ |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
919 |
{
|
920 |
upd_field_t* upd_field; |
|
921 |
upd_t* update; |
|
922 |
ulint n_fields; |
|
923 |
byte* buf; |
|
924 |
ulint i; |
|
925 |
||
926 |
ut_a(dict_index_is_clust(index)); |
|
927 |
||
928 |
if (type != TRX_UNDO_DEL_MARK_REC) { |
|
929 |
ptr = trx_undo_update_rec_get_n_upd_fields(ptr, &n_fields); |
|
930 |
} else { |
|
931 |
n_fields = 0; |
|
932 |
}
|
|
933 |
||
934 |
update = upd_create(n_fields + 2, heap); |
|
935 |
||
936 |
update->info_bits = info_bits; |
|
937 |
||
938 |
/* Store first trx id and roll ptr to update vector */
|
|
939 |
||
940 |
upd_field = upd_get_nth_field(update, n_fields); |
|
2023.3.14
by Monty Taylor
More casting. |
941 |
buf = static_cast<byte *>(mem_heap_alloc(heap, DATA_TRX_ID_LEN)); |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
942 |
trx_write_trx_id(buf, trx_id); |
943 |
||
944 |
upd_field_set_field_no(upd_field, |
|
945 |
dict_index_get_sys_col_pos(index, DATA_TRX_ID), |
|
946 |
index, trx); |
|
947 |
dfield_set_data(&(upd_field->new_val), buf, DATA_TRX_ID_LEN); |
|
948 |
||
949 |
upd_field = upd_get_nth_field(update, n_fields + 1); |
|
2023.3.14
by Monty Taylor
More casting. |
950 |
buf = static_cast<byte *>(mem_heap_alloc(heap, DATA_ROLL_PTR_LEN)); |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
951 |
trx_write_roll_ptr(buf, roll_ptr); |
952 |
||
953 |
upd_field_set_field_no( |
|
954 |
upd_field, dict_index_get_sys_col_pos(index, DATA_ROLL_PTR), |
|
955 |
index, trx); |
|
956 |
dfield_set_data(&(upd_field->new_val), buf, DATA_ROLL_PTR_LEN); |
|
957 |
||
958 |
/* Store then the updated ordinary columns to the update vector */
|
|
959 |
||
960 |
for (i = 0; i < n_fields; i++) { |
|
961 |
||
962 |
byte* field; |
|
963 |
ulint len; |
|
964 |
ulint field_no; |
|
965 |
ulint orig_len; |
|
966 |
||
967 |
ptr = trx_undo_update_rec_get_field_no(ptr, &field_no); |
|
968 |
||
969 |
if (field_no >= dict_index_get_n_fields(index)) { |
|
970 |
fprintf(stderr, |
|
971 |
"InnoDB: Error: trying to access"
|
|
972 |
" update undo rec field %lu in ", |
|
973 |
(ulong) field_no); |
|
974 |
dict_index_name_print(stderr, trx, index); |
|
975 |
fprintf(stderr, "\n" |
|
976 |
"InnoDB: but index has only %lu fields\n" |
|
977 |
"InnoDB: Submit a detailed bug report"
|
|
978 |
" to http://bugs.mysql.com\n" |
|
979 |
"InnoDB: Run also CHECK TABLE ", |
|
980 |
(ulong) dict_index_get_n_fields(index)); |
|
981 |
ut_print_name(stderr, trx, TRUE, index->table_name); |
|
982 |
fprintf(stderr, "\n" |
|
983 |
"InnoDB: n_fields = %lu, i = %lu, ptr %p\n", |
|
984 |
(ulong) n_fields, (ulong) i, ptr); |
|
1819.5.229
by marko
Merge Revision revid:svn-v4:16c675df-0fcb-4bc9-8058-dcc011a37293:branches/zip:6777 from MySQL InnoDB |
985 |
*upd = NULL; |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
986 |
return(NULL); |
987 |
}
|
|
988 |
||
989 |
upd_field = upd_get_nth_field(update, i); |
|
990 |
||
991 |
upd_field_set_field_no(upd_field, field_no, index, trx); |
|
992 |
||
993 |
ptr = trx_undo_rec_get_col_val(ptr, &field, &len, &orig_len); |
|
994 |
||
995 |
upd_field->orig_len = orig_len; |
|
996 |
||
997 |
if (len == UNIV_SQL_NULL) { |
|
998 |
dfield_set_null(&upd_field->new_val); |
|
999 |
} else if (len < UNIV_EXTERN_STORAGE_FIELD) { |
|
1000 |
dfield_set_data(&upd_field->new_val, field, len); |
|
1001 |
} else { |
|
1002 |
len -= UNIV_EXTERN_STORAGE_FIELD; |
|
1003 |
||
1004 |
dfield_set_data(&upd_field->new_val, field, len); |
|
1005 |
dfield_set_ext(&upd_field->new_val); |
|
1006 |
}
|
|
1007 |
}
|
|
1008 |
||
1009 |
*upd = update; |
|
1010 |
||
1011 |
return(ptr); |
|
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 |
Builds a partial row from an update undo log record. It contains the
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1016 |
columns which occur as ordering in any index of the table.
|
1017 |
@return pointer to remaining part of undo record */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1018 |
UNIV_INTERN
|
1019 |
byte* |
|
1020 |
trx_undo_rec_get_partial_row( |
|
1021 |
/*=========================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1022 |
byte* ptr, /*!< in: remaining part in update undo log |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1023 |
record of a suitable type, at the start of
|
1024 |
the stored index columns;
|
|
1025 |
NOTE that this copy of the undo log record must
|
|
1026 |
be preserved as long as the partial row is
|
|
1027 |
used, as we do NOT copy the data in the
|
|
1028 |
record! */
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1029 |
dict_index_t* index, /*!< in: clustered index */ |
1030 |
dtuple_t** row, /*!< out, own: partial row */ |
|
1031 |
ibool ignore_prefix, /*!< in: flag to indicate if we |
|
641.2.1
by Monty Taylor
InnoDB Plugin 1.0.2 |
1032 |
expect blob prefixes in undo. Used
|
1033 |
only in the assertion. */
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1034 |
mem_heap_t* heap) /*!< in: memory heap from which the memory |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1035 |
needed is allocated */
|
1036 |
{
|
|
1037 |
const byte* end_ptr; |
|
1038 |
ulint row_len; |
|
1039 |
||
1040 |
ut_ad(index); |
|
1041 |
ut_ad(ptr); |
|
1042 |
ut_ad(row); |
|
1043 |
ut_ad(heap); |
|
1044 |
ut_ad(dict_index_is_clust(index)); |
|
1045 |
||
1046 |
row_len = dict_table_get_n_cols(index->table); |
|
1047 |
||
1048 |
*row = dtuple_create(heap, row_len); |
|
1049 |
||
1050 |
dict_table_copy_types(*row, index->table); |
|
1051 |
||
1052 |
end_ptr = ptr + mach_read_from_2(ptr); |
|
1053 |
ptr += 2; |
|
1054 |
||
1055 |
while (ptr != end_ptr) { |
|
1056 |
dfield_t* dfield; |
|
1057 |
byte* field; |
|
1058 |
ulint field_no; |
|
1059 |
const dict_col_t* col; |
|
1060 |
ulint col_no; |
|
1061 |
ulint len; |
|
1062 |
ulint orig_len; |
|
1063 |
||
1064 |
ptr = trx_undo_update_rec_get_field_no(ptr, &field_no); |
|
1065 |
||
1066 |
col = dict_index_get_nth_col(index, field_no); |
|
1067 |
col_no = dict_col_get_no(col); |
|
1068 |
||
1069 |
ptr = trx_undo_rec_get_col_val(ptr, &field, &len, &orig_len); |
|
1070 |
||
1071 |
dfield = dtuple_get_nth_field(*row, col_no); |
|
1072 |
||
1073 |
dfield_set_data(dfield, field, len); |
|
1074 |
||
1075 |
if (len != UNIV_SQL_NULL |
|
1076 |
&& len >= UNIV_EXTERN_STORAGE_FIELD) { |
|
1077 |
dfield_set_len(dfield, |
|
1078 |
len - UNIV_EXTERN_STORAGE_FIELD); |
|
1079 |
dfield_set_ext(dfield); |
|
1080 |
/* If the prefix of this column is indexed,
|
|
1081 |
ensure that enough prefix is stored in the
|
|
1082 |
undo log record. */
|
|
1819.5.270
by Marko Makela
Merge Revision revid:mmakela@bk-internal.mysql.com-20100415070122-1nxji8ym4mao13ao from MySQL InnoDB |
1083 |
if (!ignore_prefix && col->ord_part) { |
1084 |
ut_a(dfield_get_len(dfield) |
|
1085 |
>= 2 * BTR_EXTERN_FIELD_REF_SIZE); |
|
1086 |
ut_a(dict_table_get_format(index->table) |
|
1087 |
>= DICT_TF_FORMAT_ZIP |
|
1088 |
|| dfield_get_len(dfield) |
|
1089 |
>= REC_MAX_INDEX_COL_LEN |
|
1090 |
+ BTR_EXTERN_FIELD_REF_SIZE); |
|
1091 |
}
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1092 |
}
|
1093 |
}
|
|
1094 |
||
1095 |
return(ptr); |
|
1096 |
}
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1097 |
#endif /* !UNIV_HOTBACKUP */ |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1098 |
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1099 |
/***********************************************************************//**
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1100 |
Erases the unused undo log page end. */
|
1101 |
static
|
|
1102 |
void
|
|
1103 |
trx_undo_erase_page_end( |
|
1104 |
/*====================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1105 |
page_t* undo_page, /*!< in: undo page whose end to erase */ |
1106 |
mtr_t* mtr) /*!< in: mtr */ |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1107 |
{
|
1108 |
ulint first_free; |
|
1109 |
||
1110 |
first_free = mach_read_from_2(undo_page + TRX_UNDO_PAGE_HDR |
|
1111 |
+ TRX_UNDO_PAGE_FREE); |
|
1112 |
memset(undo_page + first_free, 0xff, |
|
1113 |
(UNIV_PAGE_SIZE - FIL_PAGE_DATA_END) - first_free); |
|
1114 |
||
1115 |
mlog_write_initial_log_record(undo_page, MLOG_UNDO_ERASE_END, mtr); |
|
1116 |
}
|
|
1117 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1118 |
/***********************************************************//**
|
1119 |
Parses a redo log record of erasing of an undo page end.
|
|
1120 |
@return end of log record or NULL */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1121 |
UNIV_INTERN
|
1122 |
byte* |
|
1123 |
trx_undo_parse_erase_page_end( |
|
1124 |
/*==========================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1125 |
byte* ptr, /*!< in: buffer */ |
2023.3.29
by Monty Taylor
Added back INNOBASE_SKIP_WARNINGS for solaris. Also dealt with unused params. |
1126 |
byte* /*end_ptr*/, /*!< in: buffer end */ |
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1127 |
page_t* page, /*!< in: page or NULL */ |
1128 |
mtr_t* mtr) /*!< in: mtr or NULL */ |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1129 |
{
|
1130 |
ut_ad(ptr && end_ptr); |
|
1131 |
||
1132 |
if (page == NULL) { |
|
1133 |
||
1134 |
return(ptr); |
|
1135 |
}
|
|
1136 |
||
1137 |
trx_undo_erase_page_end(page, mtr); |
|
1138 |
||
1139 |
return(ptr); |
|
1140 |
}
|
|
1141 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1142 |
#ifndef UNIV_HOTBACKUP
|
1143 |
/***********************************************************************//**
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1144 |
Writes information to an undo log about an insert, update, or a delete marking
|
1145 |
of a clustered index record. This information is used in a rollback of the
|
|
1146 |
transaction and in consistent reads that must look to the history of this
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1147 |
transaction.
|
1148 |
@return DB_SUCCESS or error code */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1149 |
UNIV_INTERN
|
1150 |
ulint
|
|
1151 |
trx_undo_report_row_operation( |
|
1152 |
/*==========================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1153 |
ulint flags, /*!< in: if BTR_NO_UNDO_LOG_FLAG bit is |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1154 |
set, does nothing */
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1155 |
ulint op_type, /*!< in: TRX_UNDO_INSERT_OP or |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1156 |
TRX_UNDO_MODIFY_OP */
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1157 |
que_thr_t* thr, /*!< in: query thread */ |
1158 |
dict_index_t* index, /*!< in: clustered index */ |
|
1159 |
const dtuple_t* clust_entry, /*!< in: in the case of an insert, |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1160 |
index entry to insert into the
|
1161 |
clustered index, otherwise NULL */
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1162 |
const upd_t* update, /*!< in: in the case of an update, |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1163 |
the update vector, otherwise NULL */
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1164 |
ulint cmpl_info, /*!< in: compiler info on secondary |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1165 |
index updates */
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1166 |
const rec_t* rec, /*!< in: in case of an update or delete |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1167 |
marking, the record in the clustered
|
1168 |
index, otherwise NULL */
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1169 |
roll_ptr_t* roll_ptr) /*!< out: rollback pointer to the |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1170 |
inserted undo log record,
|
1819.9.31
by Marko Mäkelä, Stewart Smith
Merge Revision revid:marko.makela@oracle.com-20100623110659-pk5bqnmo0j7hj6md from MySQL InnoDB |
1171 |
0 if BTR_NO_UNDO_LOG
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1172 |
flag was specified */
|
1173 |
{
|
|
1174 |
trx_t* trx; |
|
1175 |
trx_undo_t* undo; |
|
1176 |
ulint page_no; |
|
1177 |
trx_rseg_t* rseg; |
|
1178 |
mtr_t mtr; |
|
1179 |
ulint err = DB_SUCCESS; |
|
1180 |
mem_heap_t* heap = NULL; |
|
1181 |
ulint offsets_[REC_OFFS_NORMAL_SIZE]; |
|
1182 |
ulint* offsets = offsets_; |
|
1183 |
rec_offs_init(offsets_); |
|
1184 |
||
1185 |
ut_a(dict_index_is_clust(index)); |
|
1186 |
||
1187 |
if (flags & BTR_NO_UNDO_LOG_FLAG) { |
|
1188 |
||
1819.9.31
by Marko Mäkelä, Stewart Smith
Merge Revision revid:marko.makela@oracle.com-20100623110659-pk5bqnmo0j7hj6md from MySQL InnoDB |
1189 |
*roll_ptr = 0; |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1190 |
|
1191 |
return(DB_SUCCESS); |
|
1192 |
}
|
|
1193 |
||
1194 |
ut_ad(thr); |
|
1195 |
ut_ad((op_type != TRX_UNDO_INSERT_OP) |
|
1196 |
|| (clust_entry && !update && !rec)); |
|
1197 |
||
1198 |
trx = thr_get_trx(thr); |
|
1199 |
rseg = trx->rseg; |
|
1200 |
||
1201 |
mutex_enter(&(trx->undo_mutex)); |
|
1202 |
||
1203 |
/* If the undo log is not assigned yet, assign one */
|
|
1204 |
||
1205 |
if (op_type == TRX_UNDO_INSERT_OP) { |
|
1206 |
||
1207 |
if (trx->insert_undo == NULL) { |
|
1208 |
||
1209 |
err = trx_undo_assign_undo(trx, TRX_UNDO_INSERT); |
|
1210 |
}
|
|
1211 |
||
1212 |
undo = trx->insert_undo; |
|
1213 |
||
1214 |
if (UNIV_UNLIKELY(!undo)) { |
|
1215 |
/* Did not succeed */
|
|
1216 |
mutex_exit(&(trx->undo_mutex)); |
|
1217 |
||
1218 |
return(err); |
|
1219 |
}
|
|
1220 |
} else { |
|
1221 |
ut_ad(op_type == TRX_UNDO_MODIFY_OP); |
|
1222 |
||
1223 |
if (trx->update_undo == NULL) { |
|
1224 |
||
1225 |
err = trx_undo_assign_undo(trx, TRX_UNDO_UPDATE); |
|
1226 |
||
1227 |
}
|
|
1228 |
||
1229 |
undo = trx->update_undo; |
|
1230 |
||
1231 |
if (UNIV_UNLIKELY(!undo)) { |
|
1232 |
/* Did not succeed */
|
|
1233 |
mutex_exit(&(trx->undo_mutex)); |
|
1234 |
return(err); |
|
1235 |
}
|
|
1236 |
||
1237 |
offsets = rec_get_offsets(rec, index, offsets, |
|
1238 |
ULINT_UNDEFINED, &heap); |
|
1239 |
}
|
|
1240 |
||
1241 |
page_no = undo->last_page_no; |
|
1242 |
||
1243 |
mtr_start(&mtr); |
|
1244 |
||
1245 |
for (;;) { |
|
1246 |
buf_block_t* undo_block; |
|
1247 |
page_t* undo_page; |
|
1248 |
ulint offset; |
|
1249 |
||
1250 |
undo_block = buf_page_get_gen(undo->space, undo->zip_size, |
|
1251 |
page_no, RW_X_LATCH, |
|
1252 |
undo->guess_block, BUF_GET, |
|
1253 |
__FILE__, __LINE__, &mtr); |
|
1254 |
buf_block_dbg_add_level(undo_block, SYNC_TRX_UNDO_PAGE); |
|
641.2.1
by Monty Taylor
InnoDB Plugin 1.0.2 |
1255 |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1256 |
undo_page = buf_block_get_frame(undo_block); |
1257 |
||
1258 |
if (op_type == TRX_UNDO_INSERT_OP) { |
|
1259 |
offset = trx_undo_page_report_insert( |
|
1260 |
undo_page, trx, index, clust_entry, &mtr); |
|
1261 |
} else { |
|
1262 |
offset = trx_undo_page_report_modify( |
|
1263 |
undo_page, trx, index, rec, offsets, update, |
|
1264 |
cmpl_info, &mtr); |
|
1265 |
}
|
|
1266 |
||
1267 |
if (UNIV_UNLIKELY(offset == 0)) { |
|
1268 |
/* The record did not fit on the page. We erase the
|
|
1269 |
end segment of the undo log page and write a log
|
|
1270 |
record of it: this is to ensure that in the debug
|
|
1271 |
version the replicate page constructed using the log
|
|
1272 |
records stays identical to the original page */
|
|
1273 |
||
1274 |
trx_undo_erase_page_end(undo_page, &mtr); |
|
1275 |
mtr_commit(&mtr); |
|
1276 |
} else { |
|
1277 |
/* Success */
|
|
1278 |
||
1279 |
mtr_commit(&mtr); |
|
1280 |
||
1281 |
undo->empty = FALSE; |
|
1282 |
undo->top_page_no = page_no; |
|
1283 |
undo->top_offset = offset; |
|
1284 |
undo->top_undo_no = trx->undo_no; |
|
1285 |
undo->guess_block = undo_block; |
|
1286 |
||
1819.9.31
by Marko Mäkelä, Stewart Smith
Merge Revision revid:marko.makela@oracle.com-20100623110659-pk5bqnmo0j7hj6md from MySQL InnoDB |
1287 |
trx->undo_no++; |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1288 |
|
1289 |
mutex_exit(&trx->undo_mutex); |
|
1290 |
||
1291 |
*roll_ptr = trx_undo_build_roll_ptr( |
|
1292 |
op_type == TRX_UNDO_INSERT_OP, |
|
1293 |
rseg->id, page_no, offset); |
|
1294 |
if (UNIV_LIKELY_NULL(heap)) { |
|
1295 |
mem_heap_free(heap); |
|
1296 |
}
|
|
1297 |
return(DB_SUCCESS); |
|
1298 |
}
|
|
1299 |
||
1300 |
ut_ad(page_no == undo->last_page_no); |
|
1301 |
||
1302 |
/* We have to extend the undo log by one page */
|
|
1303 |
||
1304 |
mtr_start(&mtr); |
|
1305 |
||
1306 |
/* When we add a page to an undo log, this is analogous to
|
|
1307 |
a pessimistic insert in a B-tree, and we must reserve the
|
|
1308 |
counterpart of the tree latch, which is the rseg mutex. */
|
|
1309 |
||
1310 |
mutex_enter(&(rseg->mutex)); |
|
1311 |
||
1312 |
page_no = trx_undo_add_page(trx, undo, &mtr); |
|
1313 |
||
1314 |
mutex_exit(&(rseg->mutex)); |
|
1315 |
||
1316 |
if (UNIV_UNLIKELY(page_no == FIL_NULL)) { |
|
1317 |
/* Did not succeed: out of space */
|
|
1318 |
||
1319 |
mutex_exit(&(trx->undo_mutex)); |
|
1320 |
mtr_commit(&mtr); |
|
1321 |
if (UNIV_LIKELY_NULL(heap)) { |
|
1322 |
mem_heap_free(heap); |
|
1323 |
}
|
|
1324 |
return(DB_OUT_OF_FILE_SPACE); |
|
1325 |
}
|
|
1326 |
}
|
|
1327 |
}
|
|
1328 |
||
1329 |
/*============== BUILDING PREVIOUS VERSION OF A RECORD ===============*/
|
|
1330 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1331 |
/******************************************************************//**
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1332 |
Copies an undo record to heap. This function can be called if we know that
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1333 |
the undo log record exists.
|
1334 |
@return own: copy of the record */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1335 |
UNIV_INTERN
|
1336 |
trx_undo_rec_t* |
|
1337 |
trx_undo_get_undo_rec_low( |
|
1338 |
/*======================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1339 |
roll_ptr_t roll_ptr, /*!< in: roll pointer to record */ |
1340 |
mem_heap_t* heap) /*!< in: memory heap where copied */ |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1341 |
{
|
1342 |
trx_undo_rec_t* undo_rec; |
|
1343 |
ulint rseg_id; |
|
1344 |
ulint page_no; |
|
1345 |
ulint offset; |
|
1819.5.3
by stewart at flamingspork
[patch 003/129] Merge patch for revision 1788 from InnoDB SVN: |
1346 |
const page_t* undo_page; |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1347 |
trx_rseg_t* rseg; |
1348 |
ibool is_insert; |
|
1349 |
mtr_t mtr; |
|
1350 |
||
1351 |
trx_undo_decode_roll_ptr(roll_ptr, &is_insert, &rseg_id, &page_no, |
|
1352 |
&offset); |
|
1353 |
rseg = trx_rseg_get_on_id(rseg_id); |
|
1354 |
||
1355 |
mtr_start(&mtr); |
|
1356 |
||
1357 |
undo_page = trx_undo_page_get_s_latched(rseg->space, rseg->zip_size, |
|
1358 |
page_no, &mtr); |
|
1359 |
||
1360 |
undo_rec = trx_undo_rec_copy(undo_page + offset, heap); |
|
1361 |
||
1362 |
mtr_commit(&mtr); |
|
1363 |
||
1364 |
return(undo_rec); |
|
1365 |
}
|
|
1366 |
||
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1367 |
/******************************************************************//**
|
1368 |
Copies an undo record to heap.
|
|
1369 |
||
1370 |
NOTE: the caller must have latches on the clustered index page and
|
|
1371 |
purge_view.
|
|
1372 |
||
1373 |
@return DB_SUCCESS, or DB_MISSING_HISTORY if the undo log has been
|
|
1374 |
truncated and we cannot fetch the old version */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1375 |
UNIV_INTERN
|
1376 |
ulint
|
|
1377 |
trx_undo_get_undo_rec( |
|
1378 |
/*==================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1379 |
roll_ptr_t roll_ptr, /*!< in: roll pointer to record */ |
1380 |
trx_id_t trx_id, /*!< in: id of the trx that generated |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1381 |
the roll pointer: it points to an
|
1382 |
undo log of this transaction */
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1383 |
trx_undo_rec_t** undo_rec, /*!< out, own: copy of the record */ |
1384 |
mem_heap_t* heap) /*!< in: memory heap where copied */ |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1385 |
{
|
1386 |
#ifdef UNIV_SYNC_DEBUG
|
|
1387 |
ut_ad(rw_lock_own(&(purge_sys->latch), RW_LOCK_SHARED)); |
|
1388 |
#endif /* UNIV_SYNC_DEBUG */ |
|
1389 |
||
1390 |
if (!trx_purge_update_undo_must_exist(trx_id)) { |
|
1391 |
||
1392 |
/* It may be that the necessary undo log has already been
|
|
1393 |
deleted */
|
|
1394 |
||
1395 |
return(DB_MISSING_HISTORY); |
|
1396 |
}
|
|
1397 |
||
1398 |
*undo_rec = trx_undo_get_undo_rec_low(roll_ptr, heap); |
|
1399 |
||
1400 |
return(DB_SUCCESS); |
|
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 |
Build a previous version of a clustered index record. This function checks
|
1405 |
that the caller has a latch on the index page of the clustered index record
|
|
1406 |
and an s-latch on the purge_view. This guarantees that the stack of versions
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1407 |
is locked all the way down to the purge_view.
|
1408 |
@return DB_SUCCESS, or DB_MISSING_HISTORY if the previous version is
|
|
1409 |
earlier than purge_view, which means that it may have been removed,
|
|
1410 |
DB_ERROR if corrupted record */
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1411 |
UNIV_INTERN
|
1412 |
ulint
|
|
1413 |
trx_undo_prev_version_build( |
|
1414 |
/*========================*/
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1415 |
const rec_t* index_rec,/*!< in: clustered index record in the |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1416 |
index tree */
|
2023.3.29
by Monty Taylor
Added back INNOBASE_SKIP_WARNINGS for solaris. Also dealt with unused params. |
1417 |
mtr_t* /*index_mtr*/, |
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1418 |
/*!< in: mtr which contains the latch to
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1419 |
index_rec page and purge_view */
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1420 |
const rec_t* rec, /*!< in: version of a clustered index record */ |
1421 |
dict_index_t* index, /*!< in: clustered index */ |
|
1422 |
ulint* offsets,/*!< in: rec_get_offsets(rec, index) */ |
|
1423 |
mem_heap_t* heap, /*!< in: memory heap from which the memory |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1424 |
needed is allocated */
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1425 |
rec_t** old_vers)/*!< out, own: previous version, or NULL if |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1426 |
rec is the first inserted version, or if
|
1427 |
history data has been deleted (an error),
|
|
1428 |
or if the purge COULD have removed the version
|
|
1429 |
though it has not yet done so */
|
|
1430 |
{
|
|
1431 |
trx_undo_rec_t* undo_rec = NULL; |
|
1432 |
dtuple_t* entry; |
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1433 |
trx_id_t rec_trx_id; |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1434 |
ulint type; |
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1435 |
undo_no_t undo_no; |
1819.9.31
by Marko Mäkelä, Stewart Smith
Merge Revision revid:marko.makela@oracle.com-20100623110659-pk5bqnmo0j7hj6md from MySQL InnoDB |
1436 |
table_id_t table_id; |
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1437 |
trx_id_t trx_id; |
1438 |
roll_ptr_t roll_ptr; |
|
1439 |
roll_ptr_t old_roll_ptr; |
|
1022.4.1
by Monty Taylor
First attempt at supporting gcc-4.4. |
1440 |
upd_t* update= NULL; |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1441 |
byte* ptr; |
1442 |
ulint info_bits; |
|
1443 |
ulint cmpl_info; |
|
1444 |
ibool dummy_extern; |
|
1445 |
byte* buf; |
|
1446 |
ulint err; |
|
1447 |
#ifdef UNIV_SYNC_DEBUG
|
|
1448 |
ut_ad(rw_lock_own(&(purge_sys->latch), RW_LOCK_SHARED)); |
|
1449 |
#endif /* UNIV_SYNC_DEBUG */ |
|
1450 |
ut_ad(mtr_memo_contains_page(index_mtr, index_rec, MTR_MEMO_PAGE_S_FIX) |
|
1451 |
|| mtr_memo_contains_page(index_mtr, index_rec, |
|
1452 |
MTR_MEMO_PAGE_X_FIX)); |
|
1453 |
ut_ad(rec_offs_validate(rec, index, offsets)); |
|
1454 |
||
1455 |
if (!dict_index_is_clust(index)) { |
|
1456 |
fprintf(stderr, "InnoDB: Error: trying to access" |
|
1457 |
" update undo rec for non-clustered index %s\n" |
|
1458 |
"InnoDB: Submit a detailed bug report to"
|
|
1459 |
" http://bugs.mysql.com\n" |
|
1460 |
"InnoDB: index record ", index->name); |
|
1461 |
rec_print(stderr, index_rec, index); |
|
1462 |
fputs("\n" |
|
1463 |
"InnoDB: record version ", stderr); |
|
1464 |
rec_print_new(stderr, rec, offsets); |
|
1465 |
putc('\n', stderr); |
|
1466 |
return(DB_ERROR); |
|
1467 |
}
|
|
1468 |
||
1469 |
roll_ptr = row_get_rec_roll_ptr(rec, index, offsets); |
|
1470 |
old_roll_ptr = roll_ptr; |
|
1471 |
||
1472 |
*old_vers = NULL; |
|
1473 |
||
1474 |
if (trx_undo_roll_ptr_is_insert(roll_ptr)) { |
|
1475 |
||
1476 |
/* The record rec is the first inserted version */
|
|
1477 |
||
1478 |
return(DB_SUCCESS); |
|
1479 |
}
|
|
1480 |
||
1481 |
rec_trx_id = row_get_rec_trx_id(rec, index, offsets); |
|
1482 |
||
1483 |
err = trx_undo_get_undo_rec(roll_ptr, rec_trx_id, &undo_rec, heap); |
|
1484 |
||
1485 |
if (UNIV_UNLIKELY(err != DB_SUCCESS)) { |
|
1486 |
/* The undo record may already have been purged.
|
|
1487 |
This should never happen in InnoDB. */
|
|
1488 |
||
1489 |
return(err); |
|
1490 |
}
|
|
1491 |
||
1492 |
ptr = trx_undo_rec_get_pars(undo_rec, &type, &cmpl_info, |
|
1493 |
&dummy_extern, &undo_no, &table_id); |
|
1494 |
||
1495 |
ptr = trx_undo_update_rec_get_sys_cols(ptr, &trx_id, &roll_ptr, |
|
1496 |
&info_bits); |
|
1497 |
||
1498 |
/* (a) If a clustered index record version is such that the
|
|
1499 |
trx id stamp in it is bigger than purge_sys->view, then the
|
|
1500 |
BLOBs in that version are known to exist (the purge has not
|
|
1501 |
progressed that far);
|
|
1502 |
||
1503 |
(b) if the version is the first version such that trx id in it
|
|
1504 |
is less than purge_sys->view, and it is not delete-marked,
|
|
1505 |
then the BLOBs in that version are known to exist (the purge
|
|
1506 |
cannot have purged the BLOBs referenced by that version
|
|
1507 |
yet).
|
|
1508 |
||
1509 |
This function does not fetch any BLOBs. The callers might, by
|
|
1510 |
possibly invoking row_ext_create() via row_build(). However,
|
|
1511 |
they should have all needed information in the *old_vers
|
|
1512 |
returned by this function. This is because *old_vers is based
|
|
1513 |
on the transaction undo log records. The function
|
|
1514 |
trx_undo_page_fetch_ext() will write BLOB prefixes to the
|
|
1515 |
transaction undo log that are at least as long as the longest
|
|
1516 |
possible column prefix in a secondary index. Thus, secondary
|
|
1517 |
index entries for *old_vers can be constructed without
|
|
1518 |
dereferencing any BLOB pointers. */
|
|
1519 |
||
1520 |
ptr = trx_undo_rec_skip_row_ref(ptr, index); |
|
1521 |
||
1522 |
ptr = trx_undo_update_rec_get_update(ptr, index, type, trx_id, |
|
1523 |
roll_ptr, info_bits, |
|
1524 |
NULL, heap, &update); |
|
1525 |
||
1819.9.31
by Marko Mäkelä, Stewart Smith
Merge Revision revid:marko.makela@oracle.com-20100623110659-pk5bqnmo0j7hj6md from MySQL InnoDB |
1526 |
if (UNIV_UNLIKELY(table_id != index->table->id)) { |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1527 |
ptr = NULL; |
1528 |
||
1529 |
fprintf(stderr, |
|
1530 |
"InnoDB: Error: trying to access update undo rec"
|
|
1531 |
" for table %s\n" |
|
1532 |
"InnoDB: but the table id in the"
|
|
1533 |
" undo record is wrong\n" |
|
1534 |
"InnoDB: Submit a detailed bug report"
|
|
1535 |
" to http://bugs.mysql.com\n" |
|
1536 |
"InnoDB: Run also CHECK TABLE %s\n", |
|
1537 |
index->table_name, index->table_name); |
|
1538 |
}
|
|
1539 |
||
1540 |
if (ptr == NULL) { |
|
1541 |
/* The record was corrupted, return an error; these printfs
|
|
1542 |
should catch an elusive bug in row_vers_old_has_index_entry */
|
|
1543 |
||
1544 |
fprintf(stderr, |
|
1545 |
"InnoDB: table %s, index %s, n_uniq %lu\n" |
|
1546 |
"InnoDB: undo rec address %p, type %lu cmpl_info %lu\n" |
|
1819.9.31
by Marko Mäkelä, Stewart Smith
Merge Revision revid:marko.makela@oracle.com-20100623110659-pk5bqnmo0j7hj6md from MySQL InnoDB |
1547 |
"InnoDB: undo rec table id %llu,"
|
1548 |
" index table id %llu\n" |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1549 |
"InnoDB: dump of 150 bytes in undo rec: ", |
1550 |
index->table_name, index->name, |
|
1551 |
(ulong) dict_index_get_n_unique(index), |
|
1552 |
undo_rec, (ulong) type, (ulong) cmpl_info, |
|
1819.9.31
by Marko Mäkelä, Stewart Smith
Merge Revision revid:marko.makela@oracle.com-20100623110659-pk5bqnmo0j7hj6md from MySQL InnoDB |
1553 |
(ullint) table_id, |
1554 |
(ullint) index->table->id); |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1555 |
ut_print_buf(stderr, undo_rec, 150); |
1556 |
fputs("\n" |
|
1557 |
"InnoDB: index record ", stderr); |
|
1558 |
rec_print(stderr, index_rec, index); |
|
1559 |
fputs("\n" |
|
1560 |
"InnoDB: record version ", stderr); |
|
1561 |
rec_print_new(stderr, rec, offsets); |
|
1562 |
fprintf(stderr, "\n" |
|
1563 |
"InnoDB: Record trx id " TRX_ID_FMT |
|
1564 |
", update rec trx id " TRX_ID_FMT "\n" |
|
1819.9.31
by Marko Mäkelä, Stewart Smith
Merge Revision revid:marko.makela@oracle.com-20100623110659-pk5bqnmo0j7hj6md from MySQL InnoDB |
1565 |
"InnoDB: Roll ptr in rec " TRX_ID_FMT |
1566 |
", in update rec" TRX_ID_FMT "\n", |
|
1819.9.78
by Stewart Smith
fix TRX_ID_FMT and associated printf() |
1567 |
rec_trx_id, trx_id, |
1568 |
old_roll_ptr, roll_ptr); |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1569 |
|
1570 |
trx_purge_sys_print(); |
|
1571 |
return(DB_ERROR); |
|
1572 |
}
|
|
1573 |
||
1574 |
if (row_upd_changes_field_size_or_external(index, offsets, update)) { |
|
1575 |
ulint n_ext; |
|
1576 |
||
1577 |
/* We have to set the appropriate extern storage bits in the
|
|
1578 |
old version of the record: the extern bits in rec for those
|
|
1579 |
fields that update does NOT update, as well as the the bits for
|
|
1580 |
those fields that update updates to become externally stored
|
|
1581 |
fields. Store the info: */
|
|
1582 |
||
1583 |
entry = row_rec_to_index_entry(ROW_COPY_DATA, rec, index, |
|
1584 |
offsets, &n_ext, heap); |
|
1585 |
n_ext += btr_push_update_extern_fields(entry, update, heap); |
|
1586 |
/* The page containing the clustered index record
|
|
1587 |
corresponding to entry is latched in mtr. Thus the
|
|
1588 |
following call is safe. */
|
|
1589 |
row_upd_index_replace_new_col_vals(entry, index, update, heap); |
|
1590 |
||
2023.3.14
by Monty Taylor
More casting. |
1591 |
buf = static_cast<byte *>(mem_heap_alloc(heap, rec_get_converted_size(index, entry, |
1592 |
n_ext))); |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1593 |
|
1594 |
*old_vers = rec_convert_dtuple_to_rec(buf, index, |
|
1595 |
entry, n_ext); |
|
1596 |
} else { |
|
2023.3.14
by Monty Taylor
More casting. |
1597 |
buf = static_cast<byte *>(mem_heap_alloc(heap, rec_offs_size(offsets))); |
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1598 |
*old_vers = rec_copy(buf, rec, offsets); |
1599 |
rec_offs_make_valid(*old_vers, index, offsets); |
|
1600 |
row_upd_rec_in_place(*old_vers, index, offsets, update, NULL); |
|
1601 |
}
|
|
1602 |
||
1603 |
return(DB_SUCCESS); |
|
1604 |
}
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1605 |
#endif /* !UNIV_HOTBACKUP */ |