|
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) 1994, 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 rem/rem0rec.c
|
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
21 |
Record manager
|
22 |
||
23 |
Created 5/30/1994 Heikki Tuuri
|
|
24 |
*************************************************************************/
|
|
25 |
||
26 |
#include "rem0rec.h" |
|
27 |
||
28 |
#ifdef UNIV_NONINL
|
|
29 |
#include "rem0rec.ic" |
|
30 |
#endif
|
|
31 |
||
32 |
#include "mtr0mtr.h" |
|
33 |
#include "mtr0log.h" |
|
34 |
||
35 |
/* PHYSICAL RECORD (OLD STYLE)
|
|
36 |
===========================
|
|
37 |
||
38 |
The physical record, which is the data type of all the records
|
|
39 |
found in index pages of the database, has the following format
|
|
40 |
(lower addresses and more significant bits inside a byte are below
|
|
41 |
represented on a higher text line):
|
|
42 |
||
43 |
| offset of the end of the last field of data, the most significant
|
|
44 |
bit is set to 1 if and only if the field is SQL-null,
|
|
45 |
if the offset is 2-byte, then the second most significant
|
|
46 |
bit is set to 1 if the field is stored on another page:
|
|
47 |
mostly this will occur in the case of big BLOB fields |
|
|
48 |
...
|
|
49 |
| offset of the end of the first field of data + the SQL-null bit |
|
|
50 |
| 4 bits used to delete mark a record, and mark a predefined
|
|
51 |
minimum record in alphabetical order |
|
|
52 |
| 4 bits giving the number of records owned by this record
|
|
53 |
(this term is explained in page0page.h) |
|
|
54 |
| 13 bits giving the order number of this record in the
|
|
55 |
heap of the index page |
|
|
56 |
| 10 bits giving the number of fields in this record |
|
|
57 |
| 1 bit which is set to 1 if the offsets above are given in
|
|
58 |
one byte format, 0 if in two byte format |
|
|
59 |
| two bytes giving an absolute pointer to the next record in the page |
|
|
60 |
ORIGIN of the record
|
|
61 |
| first field of data |
|
|
62 |
...
|
|
63 |
| last field of data |
|
|
64 |
||
65 |
The origin of the record is the start address of the first field
|
|
66 |
of data. The offsets are given relative to the origin.
|
|
67 |
The offsets of the data fields are stored in an inverted
|
|
68 |
order because then the offset of the first fields are near the
|
|
69 |
origin, giving maybe a better processor cache hit rate in searches.
|
|
70 |
||
71 |
The offsets of the data fields are given as one-byte
|
|
72 |
(if there are less than 127 bytes of data in the record)
|
|
73 |
or two-byte unsigned integers. The most significant bit
|
|
74 |
is not part of the offset, instead it indicates the SQL-null
|
|
75 |
if the bit is set to 1. */
|
|
76 |
||
77 |
/* PHYSICAL RECORD (NEW STYLE)
|
|
78 |
===========================
|
|
79 |
||
80 |
The physical record, which is the data type of all the records
|
|
81 |
found in index pages of the database, has the following format
|
|
82 |
(lower addresses and more significant bits inside a byte are below
|
|
83 |
represented on a higher text line):
|
|
84 |
||
85 |
| length of the last non-null variable-length field of data:
|
|
86 |
if the maximum length is 255, one byte; otherwise,
|
|
87 |
0xxxxxxx (one byte, length=0..127), or 1exxxxxxxxxxxxxx (two bytes,
|
|
88 |
length=128..16383, extern storage flag) |
|
|
89 |
...
|
|
90 |
| length of first variable-length field of data |
|
|
91 |
| SQL-null flags (1 bit per nullable field), padded to full bytes |
|
|
92 |
| 4 bits used to delete mark a record, and mark a predefined
|
|
93 |
minimum record in alphabetical order |
|
|
94 |
| 4 bits giving the number of records owned by this record
|
|
95 |
(this term is explained in page0page.h) |
|
|
96 |
| 13 bits giving the order number of this record in the
|
|
97 |
heap of the index page |
|
|
98 |
| 3 bits record type: 000=conventional, 001=node pointer (inside B-tree),
|
|
99 |
010=infimum, 011=supremum, 1xx=reserved |
|
|
100 |
| two bytes giving a relative pointer to the next record in the page |
|
|
101 |
ORIGIN of the record
|
|
102 |
| first field of data |
|
|
103 |
...
|
|
104 |
| last field of data |
|
|
105 |
||
106 |
The origin of the record is the start address of the first field
|
|
107 |
of data. The offsets are given relative to the origin.
|
|
108 |
The offsets of the data fields are stored in an inverted
|
|
109 |
order because then the offset of the first fields are near the
|
|
110 |
origin, giving maybe a better processor cache hit rate in searches.
|
|
111 |
||
112 |
The offsets of the data fields are given as one-byte
|
|
113 |
(if there are less than 127 bytes of data in the record)
|
|
114 |
or two-byte unsigned integers. The most significant bit
|
|
115 |
is not part of the offset, instead it indicates the SQL-null
|
|
116 |
if the bit is set to 1. */
|
|
117 |
||
118 |
/* CANONICAL COORDINATES. A record can be seen as a single
|
|
119 |
string of 'characters' in the following way: catenate the bytes
|
|
120 |
in each field, in the order of fields. An SQL-null field
|
|
121 |
is taken to be an empty sequence of bytes. Then after
|
|
122 |
the position of each field insert in the string
|
|
123 |
the 'character' <FIELD-END>, except that after an SQL-null field
|
|
124 |
insert <NULL-FIELD-END>. Now the ordinal position of each
|
|
125 |
byte in this canonical string is its canonical coordinate.
|
|
126 |
So, for the record ("AA", SQL-NULL, "BB", ""), the canonical
|
|
127 |
string is "AA<FIELD_END><NULL-FIELD-END>BB<FIELD-END><FIELD-END>".
|
|
128 |
We identify prefixes (= initial segments) of a record
|
|
129 |
with prefixes of the canonical string. The canonical
|
|
130 |
length of the prefix is the length of the corresponding
|
|
131 |
prefix of the canonical string. The canonical length of
|
|
132 |
a record is the length of its canonical string.
|
|
133 |
||
134 |
For example, the maximal common prefix of records
|
|
135 |
("AA", SQL-NULL, "BB", "C") and ("AA", SQL-NULL, "B", "C")
|
|
136 |
is "AA<FIELD-END><NULL-FIELD-END>B", and its canonical
|
|
137 |
length is 5.
|
|
138 |
||
139 |
A complete-field prefix of a record is a prefix which ends at the
|
|
140 |
end of some field (containing also <FIELD-END>).
|
|
141 |
A record is a complete-field prefix of another record, if
|
|
142 |
the corresponding canonical strings have the same property. */
|
|
143 |
||
144 |
/* this is used to fool compiler in rec_validate */
|
|
145 |
UNIV_INTERN ulint rec_dummy; |
|
146 |
||
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
147 |
/***************************************************************//**
|
148 |
Validates the consistency of an old-style physical record.
|
|
149 |
@return TRUE if ok */
|
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
150 |
static
|
151 |
ibool
|
|
152 |
rec_validate_old( |
|
153 |
/*=============*/
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
154 |
const rec_t* rec); /*!< in: physical record */ |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
155 |
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
156 |
/******************************************************//**
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
157 |
Determine how many of the first n columns in a compact
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
158 |
physical record are stored externally.
|
159 |
@return number of externally stored columns */
|
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
160 |
UNIV_INTERN
|
161 |
ulint
|
|
162 |
rec_get_n_extern_new( |
|
163 |
/*=================*/
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
164 |
const rec_t* rec, /*!< in: compact physical record */ |
165 |
dict_index_t* index, /*!< in: record descriptor */ |
|
166 |
ulint n) /*!< in: number of columns to scan */ |
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
167 |
{
|
168 |
const byte* nulls; |
|
169 |
const byte* lens; |
|
170 |
dict_field_t* field; |
|
171 |
ulint null_mask; |
|
172 |
ulint n_extern; |
|
173 |
ulint i; |
|
174 |
||
175 |
ut_ad(dict_table_is_comp(index->table)); |
|
176 |
ut_ad(rec_get_status(rec) == REC_STATUS_ORDINARY); |
|
177 |
ut_ad(n == ULINT_UNDEFINED || n <= dict_index_get_n_fields(index)); |
|
178 |
||
179 |
if (n == ULINT_UNDEFINED) { |
|
180 |
n = dict_index_get_n_fields(index); |
|
181 |
}
|
|
182 |
||
183 |
nulls = rec - (REC_N_NEW_EXTRA_BYTES + 1); |
|
184 |
lens = nulls - UT_BITS_IN_BYTES(index->n_nullable); |
|
185 |
null_mask = 1; |
|
186 |
n_extern = 0; |
|
187 |
i = 0; |
|
188 |
||
189 |
/* read the lengths of fields 0..n */
|
|
190 |
do { |
|
191 |
ulint len; |
|
192 |
||
193 |
field = dict_index_get_nth_field(index, i); |
|
194 |
if (!(dict_field_get_col(field)->prtype & DATA_NOT_NULL)) { |
|
195 |
/* nullable field => read the null flag */
|
|
196 |
||
197 |
if (UNIV_UNLIKELY(!(byte) null_mask)) { |
|
198 |
nulls--; |
|
199 |
null_mask = 1; |
|
200 |
}
|
|
201 |
||
202 |
if (*nulls & null_mask) { |
|
203 |
null_mask <<= 1; |
|
204 |
/* No length is stored for NULL fields. */
|
|
205 |
continue; |
|
206 |
}
|
|
207 |
null_mask <<= 1; |
|
208 |
}
|
|
209 |
||
210 |
if (UNIV_UNLIKELY(!field->fixed_len)) { |
|
211 |
/* Variable-length field: read the length */
|
|
212 |
const dict_col_t* col |
|
213 |
= dict_field_get_col(field); |
|
214 |
len = *lens--; |
|
|
1819.7.69
by Vasil Dimov, Stewart Smith
Merge Revision revid:vasil.dimov@oracle.com-20100422112442-enb8mpw7jla5uvaz from MySQL InnoDB |
215 |
/* If the maximum length of the field is up
|
216 |
to 255 bytes, the actual length is always
|
|
217 |
stored in one byte. If the maximum length is
|
|
218 |
more than 255 bytes, the actual length is
|
|
219 |
stored in one byte for 0..127. The length
|
|
220 |
will be encoded in two bytes when it is 128 or
|
|
221 |
more, or when the field is stored externally. */
|
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
222 |
if (UNIV_UNLIKELY(col->len > 255) |
223 |
|| UNIV_UNLIKELY(col->mtype == DATA_BLOB)) { |
|
224 |
if (len & 0x80) { |
|
225 |
/* 1exxxxxxx xxxxxxxx */
|
|
226 |
if (len & 0x40) { |
|
227 |
n_extern++; |
|
228 |
}
|
|
229 |
lens--; |
|
230 |
}
|
|
231 |
}
|
|
232 |
}
|
|
233 |
} while (++i < n); |
|
234 |
||
235 |
return(n_extern); |
|
236 |
}
|
|
237 |
||
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
238 |
/******************************************************//**
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
239 |
Determine the offset to each field in a leaf-page record
|
240 |
in ROW_FORMAT=COMPACT. This is a special case of
|
|
241 |
rec_init_offsets() and rec_get_offsets_func(). */
|
|
242 |
UNIV_INTERN
|
|
243 |
void
|
|
244 |
rec_init_offsets_comp_ordinary( |
|
245 |
/*===========================*/
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
246 |
const rec_t* rec, /*!< in: physical record in |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
247 |
ROW_FORMAT=COMPACT */
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
248 |
ulint extra, /*!< in: number of bytes to reserve |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
249 |
between the record header and
|
250 |
the data payload
|
|
251 |
(usually REC_N_NEW_EXTRA_BYTES) */
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
252 |
const dict_index_t* index, /*!< in: record descriptor */ |
253 |
ulint* offsets)/*!< in/out: array of offsets; |
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
254 |
in: n=rec_offs_n_fields(offsets) */
|
255 |
{
|
|
256 |
ulint i = 0; |
|
257 |
ulint offs = 0; |
|
258 |
ulint any_ext = 0; |
|
259 |
const byte* nulls = rec - (extra + 1); |
|
260 |
const byte* lens = nulls |
|
261 |
- UT_BITS_IN_BYTES(index->n_nullable); |
|
262 |
dict_field_t* field; |
|
263 |
ulint null_mask = 1; |
|
264 |
||
265 |
#ifdef UNIV_DEBUG
|
|
266 |
/* We cannot invoke rec_offs_make_valid() here, because it can hold
|
|
267 |
that extra != REC_N_NEW_EXTRA_BYTES. Similarly, rec_offs_validate()
|
|
268 |
will fail in that case, because it invokes rec_get_status(). */
|
|
269 |
offsets[2] = (ulint) rec; |
|
270 |
offsets[3] = (ulint) index; |
|
271 |
#endif /* UNIV_DEBUG */ |
|
272 |
||
273 |
/* read the lengths of fields 0..n */
|
|
274 |
do { |
|
275 |
ulint len; |
|
276 |
||
277 |
field = dict_index_get_nth_field(index, i); |
|
278 |
if (!(dict_field_get_col(field)->prtype |
|
279 |
& DATA_NOT_NULL)) { |
|
280 |
/* nullable field => read the null flag */
|
|
281 |
||
282 |
if (UNIV_UNLIKELY(!(byte) null_mask)) { |
|
283 |
nulls--; |
|
284 |
null_mask = 1; |
|
285 |
}
|
|
286 |
||
287 |
if (*nulls & null_mask) { |
|
288 |
null_mask <<= 1; |
|
289 |
/* No length is stored for NULL fields.
|
|
290 |
We do not advance offs, and we set
|
|
291 |
the length to zero and enable the
|
|
292 |
SQL NULL flag in offsets[]. */
|
|
293 |
len = offs | REC_OFFS_SQL_NULL; |
|
294 |
goto resolved; |
|
295 |
}
|
|
296 |
null_mask <<= 1; |
|
297 |
}
|
|
298 |
||
299 |
if (UNIV_UNLIKELY(!field->fixed_len)) { |
|
300 |
/* Variable-length field: read the length */
|
|
301 |
const dict_col_t* col |
|
302 |
= dict_field_get_col(field); |
|
303 |
len = *lens--; |
|
|
1819.7.69
by Vasil Dimov, Stewart Smith
Merge Revision revid:vasil.dimov@oracle.com-20100422112442-enb8mpw7jla5uvaz from MySQL InnoDB |
304 |
/* If the maximum length of the field is up
|
305 |
to 255 bytes, the actual length is always
|
|
306 |
stored in one byte. If the maximum length is
|
|
307 |
more than 255 bytes, the actual length is
|
|
308 |
stored in one byte for 0..127. The length
|
|
309 |
will be encoded in two bytes when it is 128 or
|
|
310 |
more, or when the field is stored externally. */
|
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
311 |
if (UNIV_UNLIKELY(col->len > 255) |
312 |
|| UNIV_UNLIKELY(col->mtype |
|
313 |
== DATA_BLOB)) { |
|
314 |
if (len & 0x80) { |
|
315 |
/* 1exxxxxxx xxxxxxxx */
|
|
316 |
len <<= 8; |
|
317 |
len |= *lens--; |
|
318 |
||
319 |
offs += len & 0x3fff; |
|
320 |
if (UNIV_UNLIKELY(len |
|
321 |
& 0x4000)) { |
|
322 |
ut_ad(dict_index_is_clust |
|
323 |
(index)); |
|
324 |
any_ext = REC_OFFS_EXTERNAL; |
|
325 |
len = offs |
|
326 |
| REC_OFFS_EXTERNAL; |
|
327 |
} else { |
|
328 |
len = offs; |
|
329 |
}
|
|
330 |
||
331 |
goto resolved; |
|
332 |
}
|
|
333 |
}
|
|
334 |
||
335 |
len = offs += len; |
|
336 |
} else { |
|
337 |
len = offs += field->fixed_len; |
|
338 |
}
|
|
339 |
resolved: |
|
340 |
rec_offs_base(offsets)[i + 1] = len; |
|
341 |
} while (++i < rec_offs_n_fields(offsets)); |
|
342 |
||
343 |
*rec_offs_base(offsets) |
|
344 |
= (rec - (lens + 1)) | REC_OFFS_COMPACT | any_ext; |
|
345 |
}
|
|
346 |
||
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
347 |
/******************************************************//**
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
348 |
The following function determines the offsets to each field in the
|
349 |
record. The offsets are written to a previously allocated array of
|
|
350 |
ulint, where rec_offs_n_fields(offsets) has been initialized to the
|
|
351 |
number of fields in the record. The rest of the array will be
|
|
352 |
initialized by this function. rec_offs_base(offsets)[0] will be set
|
|
353 |
to the extra size (if REC_OFFS_COMPACT is set, the record is in the
|
|
354 |
new format; if REC_OFFS_EXTERNAL is set, the record contains externally
|
|
355 |
stored columns), and rec_offs_base(offsets)[1..n_fields] will be set to
|
|
356 |
offsets past the end of fields 0..n_fields, or to the beginning of
|
|
357 |
fields 1..n_fields+1. When the high-order bit of the offset at [i+1]
|
|
358 |
is set (REC_OFFS_SQL_NULL), the field i is NULL. When the second
|
|
359 |
high-order bit of the offset at [i+1] is set (REC_OFFS_EXTERNAL), the
|
|
360 |
field i is being stored externally. */
|
|
361 |
static
|
|
362 |
void
|
|
363 |
rec_init_offsets( |
|
364 |
/*=============*/
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
365 |
const rec_t* rec, /*!< in: physical record */ |
366 |
const dict_index_t* index, /*!< in: record descriptor */ |
|
367 |
ulint* offsets)/*!< in/out: array of offsets; |
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
368 |
in: n=rec_offs_n_fields(offsets) */
|
369 |
{
|
|
370 |
ulint i = 0; |
|
371 |
ulint offs; |
|
372 |
||
373 |
rec_offs_make_valid(rec, index, offsets); |
|
374 |
||
375 |
if (dict_table_is_comp(index->table)) { |
|
376 |
const byte* nulls; |
|
377 |
const byte* lens; |
|
378 |
dict_field_t* field; |
|
379 |
ulint null_mask; |
|
380 |
ulint status = rec_get_status(rec); |
|
381 |
ulint n_node_ptr_field = ULINT_UNDEFINED; |
|
382 |
||
383 |
switch (UNIV_EXPECT(status, REC_STATUS_ORDINARY)) { |
|
384 |
case REC_STATUS_INFIMUM: |
|
385 |
case REC_STATUS_SUPREMUM: |
|
386 |
/* the field is 8 bytes long */
|
|
387 |
rec_offs_base(offsets)[0] |
|
388 |
= REC_N_NEW_EXTRA_BYTES | REC_OFFS_COMPACT; |
|
389 |
rec_offs_base(offsets)[1] = 8; |
|
390 |
return; |
|
391 |
case REC_STATUS_NODE_PTR: |
|
392 |
n_node_ptr_field
|
|
393 |
= dict_index_get_n_unique_in_tree(index); |
|
394 |
break; |
|
395 |
case REC_STATUS_ORDINARY: |
|
396 |
rec_init_offsets_comp_ordinary(rec, |
|
397 |
REC_N_NEW_EXTRA_BYTES, |
|
398 |
index, offsets); |
|
399 |
return; |
|
400 |
}
|
|
401 |
||
402 |
nulls = rec - (REC_N_NEW_EXTRA_BYTES + 1); |
|
403 |
lens = nulls - UT_BITS_IN_BYTES(index->n_nullable); |
|
404 |
offs = 0; |
|
405 |
null_mask = 1; |
|
406 |
||
407 |
/* read the lengths of fields 0..n */
|
|
408 |
do { |
|
409 |
ulint len; |
|
410 |
if (UNIV_UNLIKELY(i == n_node_ptr_field)) { |
|
411 |
len = offs += 4; |
|
412 |
goto resolved; |
|
413 |
}
|
|
414 |
||
415 |
field = dict_index_get_nth_field(index, i); |
|
416 |
if (!(dict_field_get_col(field)->prtype |
|
417 |
& DATA_NOT_NULL)) { |
|
418 |
/* nullable field => read the null flag */
|
|
419 |
||
420 |
if (UNIV_UNLIKELY(!(byte) null_mask)) { |
|
421 |
nulls--; |
|
422 |
null_mask = 1; |
|
423 |
}
|
|
424 |
||
425 |
if (*nulls & null_mask) { |
|
426 |
null_mask <<= 1; |
|
427 |
/* No length is stored for NULL fields.
|
|
428 |
We do not advance offs, and we set
|
|
429 |
the length to zero and enable the
|
|
430 |
SQL NULL flag in offsets[]. */
|
|
431 |
len = offs | REC_OFFS_SQL_NULL; |
|
432 |
goto resolved; |
|
433 |
}
|
|
434 |
null_mask <<= 1; |
|
435 |
}
|
|
436 |
||
437 |
if (UNIV_UNLIKELY(!field->fixed_len)) { |
|
438 |
/* Variable-length field: read the length */
|
|
439 |
const dict_col_t* col |
|
440 |
= dict_field_get_col(field); |
|
441 |
len = *lens--; |
|
|
1819.7.69
by Vasil Dimov, Stewart Smith
Merge Revision revid:vasil.dimov@oracle.com-20100422112442-enb8mpw7jla5uvaz from MySQL InnoDB |
442 |
/* If the maximum length of the field
|
443 |
is up to 255 bytes, the actual length
|
|
444 |
is always stored in one byte. If the
|
|
445 |
maximum length is more than 255 bytes,
|
|
446 |
the actual length is stored in one
|
|
447 |
byte for 0..127. The length will be
|
|
448 |
encoded in two bytes when it is 128 or
|
|
449 |
more, or when the field is stored
|
|
450 |
externally. */
|
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
451 |
if (UNIV_UNLIKELY(col->len > 255) |
452 |
|| UNIV_UNLIKELY(col->mtype |
|
453 |
== DATA_BLOB)) { |
|
454 |
if (len & 0x80) { |
|
455 |
/* 1exxxxxxx xxxxxxxx */
|
|
456 |
||
457 |
len <<= 8; |
|
458 |
len |= *lens--; |
|
459 |
||
460 |
/* B-tree node pointers
|
|
461 |
must not contain externally
|
|
462 |
stored columns. Thus
|
|
463 |
the "e" flag must be 0. */
|
|
464 |
ut_a(!(len & 0x4000)); |
|
465 |
offs += len & 0x3fff; |
|
466 |
len = offs; |
|
467 |
||
468 |
goto resolved; |
|
469 |
}
|
|
470 |
}
|
|
471 |
||
472 |
len = offs += len; |
|
473 |
} else { |
|
474 |
len = offs += field->fixed_len; |
|
475 |
}
|
|
476 |
resolved: |
|
477 |
rec_offs_base(offsets)[i + 1] = len; |
|
478 |
} while (++i < rec_offs_n_fields(offsets)); |
|
479 |
||
480 |
*rec_offs_base(offsets) |
|
481 |
= (rec - (lens + 1)) | REC_OFFS_COMPACT; |
|
482 |
} else { |
|
483 |
/* Old-style record: determine extra size and end offsets */
|
|
484 |
offs = REC_N_OLD_EXTRA_BYTES; |
|
485 |
if (rec_get_1byte_offs_flag(rec)) { |
|
486 |
offs += rec_offs_n_fields(offsets); |
|
487 |
*rec_offs_base(offsets) = offs; |
|
488 |
/* Determine offsets to fields */
|
|
489 |
do { |
|
490 |
offs = rec_1_get_field_end_info(rec, i); |
|
491 |
if (offs & REC_1BYTE_SQL_NULL_MASK) { |
|
492 |
offs &= ~REC_1BYTE_SQL_NULL_MASK; |
|
493 |
offs |= REC_OFFS_SQL_NULL; |
|
494 |
}
|
|
495 |
rec_offs_base(offsets)[1 + i] = offs; |
|
496 |
} while (++i < rec_offs_n_fields(offsets)); |
|
497 |
} else { |
|
498 |
offs += 2 * rec_offs_n_fields(offsets); |
|
499 |
*rec_offs_base(offsets) = offs; |
|
500 |
/* Determine offsets to fields */
|
|
501 |
do { |
|
502 |
offs = rec_2_get_field_end_info(rec, i); |
|
503 |
if (offs & REC_2BYTE_SQL_NULL_MASK) { |
|
504 |
offs &= ~REC_2BYTE_SQL_NULL_MASK; |
|
505 |
offs |= REC_OFFS_SQL_NULL; |
|
506 |
}
|
|
507 |
if (offs & REC_2BYTE_EXTERN_MASK) { |
|
508 |
offs &= ~REC_2BYTE_EXTERN_MASK; |
|
509 |
offs |= REC_OFFS_EXTERNAL; |
|
510 |
*rec_offs_base(offsets) |= REC_OFFS_EXTERNAL; |
|
511 |
}
|
|
512 |
rec_offs_base(offsets)[1 + i] = offs; |
|
513 |
} while (++i < rec_offs_n_fields(offsets)); |
|
514 |
}
|
|
515 |
}
|
|
516 |
}
|
|
517 |
||
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
518 |
/******************************************************//**
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
519 |
The following function determines the offsets to each field
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
520 |
in the record. It can reuse a previously returned array.
|
521 |
@return the new offsets */
|
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
522 |
UNIV_INTERN
|
523 |
ulint* |
|
524 |
rec_get_offsets_func( |
|
525 |
/*=================*/
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
526 |
const rec_t* rec, /*!< in: physical record */ |
527 |
const dict_index_t* index, /*!< in: record descriptor */ |
|
528 |
ulint* offsets,/*!< in/out: array consisting of |
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
529 |
offsets[0] allocated elements,
|
530 |
or an array from rec_get_offsets(),
|
|
531 |
or NULL */
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
532 |
ulint n_fields,/*!< in: maximum number of |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
533 |
initialized fields
|
534 |
(ULINT_UNDEFINED if all fields) */
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
535 |
mem_heap_t** heap, /*!< in/out: memory heap */ |
536 |
const char* file, /*!< in: file name where called */ |
|
537 |
ulint line) /*!< in: line number where called */ |
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
538 |
{
|
539 |
ulint n; |
|
540 |
ulint size; |
|
541 |
||
542 |
ut_ad(rec); |
|
543 |
ut_ad(index); |
|
544 |
ut_ad(heap); |
|
545 |
||
546 |
if (dict_table_is_comp(index->table)) { |
|
547 |
switch (UNIV_EXPECT(rec_get_status(rec), |
|
548 |
REC_STATUS_ORDINARY)) { |
|
549 |
case REC_STATUS_ORDINARY: |
|
550 |
n = dict_index_get_n_fields(index); |
|
551 |
break; |
|
552 |
case REC_STATUS_NODE_PTR: |
|
553 |
n = dict_index_get_n_unique_in_tree(index) + 1; |
|
554 |
break; |
|
555 |
case REC_STATUS_INFIMUM: |
|
556 |
case REC_STATUS_SUPREMUM: |
|
557 |
/* infimum or supremum record */
|
|
558 |
n = 1; |
|
559 |
break; |
|
560 |
default: |
|
561 |
ut_error; |
|
562 |
return(NULL); |
|
563 |
}
|
|
564 |
} else { |
|
565 |
n = rec_get_n_fields_old(rec); |
|
566 |
}
|
|
567 |
||
568 |
if (UNIV_UNLIKELY(n_fields < n)) { |
|
569 |
n = n_fields; |
|
570 |
}
|
|
571 |
||
572 |
size = n + (1 + REC_OFFS_HEADER_SIZE); |
|
573 |
||
574 |
if (UNIV_UNLIKELY(!offsets) |
|
575 |
|| UNIV_UNLIKELY(rec_offs_get_n_alloc(offsets) < size)) { |
|
576 |
if (UNIV_UNLIKELY(!*heap)) { |
|
577 |
*heap = mem_heap_create_func(size * sizeof(ulint), |
|
578 |
MEM_HEAP_DYNAMIC, |
|
579 |
file, line); |
|
580 |
}
|
|
|
2023.3.12
by Monty Taylor
Through rem0rec. |
581 |
offsets = static_cast<unsigned long *>(mem_heap_alloc(*heap, size * sizeof(ulint))); |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
582 |
rec_offs_set_n_alloc(offsets, size); |
583 |
}
|
|
584 |
||
585 |
rec_offs_set_n_fields(offsets, n); |
|
586 |
rec_init_offsets(rec, index, offsets); |
|
587 |
return(offsets); |
|
588 |
}
|
|
589 |
||
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
590 |
/******************************************************//**
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
591 |
The following function determines the offsets to each field
|
592 |
in the record. It can reuse a previously allocated array. */
|
|
593 |
UNIV_INTERN
|
|
594 |
void
|
|
595 |
rec_get_offsets_reverse( |
|
596 |
/*====================*/
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
597 |
const byte* extra, /*!< in: the extra bytes of a |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
598 |
compact record in reverse order,
|
599 |
excluding the fixed-size
|
|
600 |
REC_N_NEW_EXTRA_BYTES */
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
601 |
const dict_index_t* index, /*!< in: record descriptor */ |
602 |
ulint node_ptr,/*!< in: nonzero=node pointer, |
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
603 |
0=leaf node */
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
604 |
ulint* offsets)/*!< in/out: array consisting of |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
605 |
offsets[0] allocated elements */
|
606 |
{
|
|
607 |
ulint n; |
|
608 |
ulint i; |
|
609 |
ulint offs; |
|
610 |
ulint any_ext; |
|
611 |
const byte* nulls; |
|
612 |
const byte* lens; |
|
613 |
dict_field_t* field; |
|
614 |
ulint null_mask; |
|
615 |
ulint n_node_ptr_field; |
|
616 |
||
617 |
ut_ad(extra); |
|
618 |
ut_ad(index); |
|
619 |
ut_ad(offsets); |
|
620 |
ut_ad(dict_table_is_comp(index->table)); |
|
621 |
||
622 |
if (UNIV_UNLIKELY(node_ptr)) { |
|
623 |
n_node_ptr_field = dict_index_get_n_unique_in_tree(index); |
|
624 |
n = n_node_ptr_field + 1; |
|
625 |
} else { |
|
626 |
n_node_ptr_field = ULINT_UNDEFINED; |
|
627 |
n = dict_index_get_n_fields(index); |
|
628 |
}
|
|
629 |
||
630 |
ut_a(rec_offs_get_n_alloc(offsets) >= n + (1 + REC_OFFS_HEADER_SIZE)); |
|
631 |
rec_offs_set_n_fields(offsets, n); |
|
632 |
||
633 |
nulls = extra; |
|
634 |
lens = nulls + UT_BITS_IN_BYTES(index->n_nullable); |
|
635 |
i = offs = 0; |
|
636 |
null_mask = 1; |
|
637 |
any_ext = 0; |
|
638 |
||
639 |
/* read the lengths of fields 0..n */
|
|
640 |
do { |
|
641 |
ulint len; |
|
642 |
if (UNIV_UNLIKELY(i == n_node_ptr_field)) { |
|
643 |
len = offs += 4; |
|
644 |
goto resolved; |
|
645 |
}
|
|
646 |
||
647 |
field = dict_index_get_nth_field(index, i); |
|
648 |
if (!(dict_field_get_col(field)->prtype & DATA_NOT_NULL)) { |
|
649 |
/* nullable field => read the null flag */
|
|
650 |
||
651 |
if (UNIV_UNLIKELY(!(byte) null_mask)) { |
|
652 |
nulls++; |
|
653 |
null_mask = 1; |
|
654 |
}
|
|
655 |
||
656 |
if (*nulls & null_mask) { |
|
657 |
null_mask <<= 1; |
|
658 |
/* No length is stored for NULL fields.
|
|
659 |
We do not advance offs, and we set
|
|
660 |
the length to zero and enable the
|
|
661 |
SQL NULL flag in offsets[]. */
|
|
662 |
len = offs | REC_OFFS_SQL_NULL; |
|
663 |
goto resolved; |
|
664 |
}
|
|
665 |
null_mask <<= 1; |
|
666 |
}
|
|
667 |
||
668 |
if (UNIV_UNLIKELY(!field->fixed_len)) { |
|
669 |
/* Variable-length field: read the length */
|
|
670 |
const dict_col_t* col |
|
671 |
= dict_field_get_col(field); |
|
672 |
len = *lens++; |
|
|
1819.7.69
by Vasil Dimov, Stewart Smith
Merge Revision revid:vasil.dimov@oracle.com-20100422112442-enb8mpw7jla5uvaz from MySQL InnoDB |
673 |
/* If the maximum length of the field is up
|
674 |
to 255 bytes, the actual length is always
|
|
675 |
stored in one byte. If the maximum length is
|
|
676 |
more than 255 bytes, the actual length is
|
|
677 |
stored in one byte for 0..127. The length
|
|
678 |
will be encoded in two bytes when it is 128 or
|
|
679 |
more, or when the field is stored externally. */
|
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
680 |
if (UNIV_UNLIKELY(col->len > 255) |
681 |
|| UNIV_UNLIKELY(col->mtype == DATA_BLOB)) { |
|
682 |
if (len & 0x80) { |
|
683 |
/* 1exxxxxxx xxxxxxxx */
|
|
684 |
len <<= 8; |
|
685 |
len |= *lens++; |
|
686 |
||
687 |
offs += len & 0x3fff; |
|
688 |
if (UNIV_UNLIKELY(len & 0x4000)) { |
|
689 |
any_ext = REC_OFFS_EXTERNAL; |
|
690 |
len = offs | REC_OFFS_EXTERNAL; |
|
691 |
} else { |
|
692 |
len = offs; |
|
693 |
}
|
|
694 |
||
695 |
goto resolved; |
|
696 |
}
|
|
697 |
}
|
|
698 |
||
699 |
len = offs += len; |
|
700 |
} else { |
|
701 |
len = offs += field->fixed_len; |
|
702 |
}
|
|
703 |
resolved: |
|
704 |
rec_offs_base(offsets)[i + 1] = len; |
|
705 |
} while (++i < rec_offs_n_fields(offsets)); |
|
706 |
||
707 |
ut_ad(lens >= extra); |
|
708 |
*rec_offs_base(offsets) = (lens - extra + REC_N_NEW_EXTRA_BYTES) |
|
709 |
| REC_OFFS_COMPACT | any_ext; |
|
710 |
}
|
|
711 |
||
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
712 |
/************************************************************//**
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
713 |
The following function is used to get the offset to the nth
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
714 |
data field in an old-style record.
|
715 |
@return offset to the field */
|
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
716 |
UNIV_INTERN
|
717 |
ulint
|
|
718 |
rec_get_nth_field_offs_old( |
|
719 |
/*=======================*/
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
720 |
const rec_t* rec, /*!< in: record */ |
721 |
ulint n, /*!< in: index of the field */ |
|
722 |
ulint* len) /*!< out: length of the field; |
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
723 |
UNIV_SQL_NULL if SQL null */
|
724 |
{
|
|
725 |
ulint os; |
|
726 |
ulint next_os; |
|
727 |
||
|
1819.5.190
by marko
Merge Revision revid:svn-v4:16c675df-0fcb-4bc9-8058-dcc011a37293:branches/zip:6594 from MySQL InnoDB |
728 |
ut_ad(len); |
729 |
ut_a(rec); |
|
730 |
ut_a(n < rec_get_n_fields_old(rec)); |
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
731 |
|
732 |
if (rec_get_1byte_offs_flag(rec)) { |
|
733 |
os = rec_1_get_field_start_offs(rec, n); |
|
734 |
||
735 |
next_os = rec_1_get_field_end_info(rec, n); |
|
736 |
||
737 |
if (next_os & REC_1BYTE_SQL_NULL_MASK) { |
|
738 |
*len = UNIV_SQL_NULL; |
|
739 |
||
740 |
return(os); |
|
741 |
}
|
|
742 |
||
743 |
next_os = next_os & ~REC_1BYTE_SQL_NULL_MASK; |
|
744 |
} else { |
|
745 |
os = rec_2_get_field_start_offs(rec, n); |
|
746 |
||
747 |
next_os = rec_2_get_field_end_info(rec, n); |
|
748 |
||
749 |
if (next_os & REC_2BYTE_SQL_NULL_MASK) { |
|
750 |
*len = UNIV_SQL_NULL; |
|
751 |
||
752 |
return(os); |
|
753 |
}
|
|
754 |
||
755 |
next_os = next_os & ~(REC_2BYTE_SQL_NULL_MASK |
|
756 |
| REC_2BYTE_EXTERN_MASK); |
|
757 |
}
|
|
758 |
||
759 |
*len = next_os - os; |
|
760 |
||
761 |
ut_ad(*len < UNIV_PAGE_SIZE); |
|
762 |
||
763 |
return(os); |
|
764 |
}
|
|
765 |
||
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
766 |
/**********************************************************//**
|
767 |
Determines the size of a data tuple prefix in ROW_FORMAT=COMPACT.
|
|
768 |
@return total size */
|
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
769 |
UNIV_INTERN
|
770 |
ulint
|
|
|
641.2.1
by Monty Taylor
InnoDB Plugin 1.0.2 |
771 |
rec_get_converted_size_comp_prefix( |
772 |
/*===============================*/
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
773 |
const dict_index_t* index, /*!< in: record descriptor; |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
774 |
dict_table_is_comp() is
|
775 |
assumed to hold, even if
|
|
776 |
it does not */
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
777 |
const dfield_t* fields, /*!< in: array of data fields */ |
778 |
ulint n_fields,/*!< in: number of data fields */ |
|
779 |
ulint* extra) /*!< out: extra size */ |
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
780 |
{
|
|
641.2.1
by Monty Taylor
InnoDB Plugin 1.0.2 |
781 |
ulint extra_size; |
782 |
ulint data_size; |
|
783 |
ulint i; |
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
784 |
ut_ad(index); |
785 |
ut_ad(fields); |
|
786 |
ut_ad(n_fields > 0); |
|
|
641.2.1
by Monty Taylor
InnoDB Plugin 1.0.2 |
787 |
ut_ad(n_fields <= dict_index_get_n_fields(index)); |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
788 |
|
789 |
extra_size = REC_N_NEW_EXTRA_BYTES |
|
790 |
+ UT_BITS_IN_BYTES(index->n_nullable); |
|
|
641.2.1
by Monty Taylor
InnoDB Plugin 1.0.2 |
791 |
data_size = 0; |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
792 |
|
793 |
/* read the lengths of fields 0..n */
|
|
794 |
for (i = 0; i < n_fields; i++) { |
|
795 |
const dict_field_t* field; |
|
796 |
ulint len; |
|
797 |
const dict_col_t* col; |
|
798 |
||
799 |
field = dict_index_get_nth_field(index, i); |
|
800 |
len = dfield_get_len(&fields[i]); |
|
801 |
col = dict_field_get_col(field); |
|
802 |
||
803 |
ut_ad(dict_col_type_assert_equal(col, |
|
804 |
dfield_get_type(&fields[i]))); |
|
805 |
||
806 |
if (dfield_is_null(&fields[i])) { |
|
807 |
/* No length is stored for NULL fields. */
|
|
808 |
ut_ad(!(col->prtype & DATA_NOT_NULL)); |
|
809 |
continue; |
|
810 |
}
|
|
811 |
||
812 |
ut_ad(len <= col->len || col->mtype == DATA_BLOB); |
|
813 |
||
|
1819.7.69
by Vasil Dimov, Stewart Smith
Merge Revision revid:vasil.dimov@oracle.com-20100422112442-enb8mpw7jla5uvaz from MySQL InnoDB |
814 |
/* If the maximum length of a variable-length field
|
815 |
is up to 255 bytes, the actual length is always stored
|
|
816 |
in one byte. If the maximum length is more than 255
|
|
817 |
bytes, the actual length is stored in one byte for
|
|
818 |
0..127. The length will be encoded in two bytes when
|
|
819 |
it is 128 or more, or when the field is stored externally. */
|
|
820 |
||
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
821 |
if (field->fixed_len) { |
822 |
ut_ad(len == field->fixed_len); |
|
823 |
/* dict_index_add_col() should guarantee this */
|
|
824 |
ut_ad(!field->prefix_len |
|
825 |
|| field->fixed_len == field->prefix_len); |
|
826 |
} else if (dfield_is_ext(&fields[i])) { |
|
|
1819.7.69
by Vasil Dimov, Stewart Smith
Merge Revision revid:vasil.dimov@oracle.com-20100422112442-enb8mpw7jla5uvaz from MySQL InnoDB |
827 |
ut_ad(col->len >= 256 || col->mtype == DATA_BLOB); |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
828 |
extra_size += 2; |
829 |
} else if (len < 128 |
|
830 |
|| (col->len < 256 && col->mtype != DATA_BLOB)) { |
|
831 |
extra_size++; |
|
832 |
} else { |
|
833 |
/* For variable-length columns, we look up the
|
|
834 |
maximum length from the column itself. If this
|
|
835 |
is a prefix index column shorter than 256 bytes,
|
|
836 |
this will waste one byte. */
|
|
837 |
extra_size += 2; |
|
838 |
}
|
|
839 |
data_size += len; |
|
840 |
}
|
|
841 |
||
842 |
if (UNIV_LIKELY_NULL(extra)) { |
|
843 |
*extra = extra_size; |
|
844 |
}
|
|
845 |
||
846 |
return(extra_size + data_size); |
|
847 |
}
|
|
848 |
||
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
849 |
/**********************************************************//**
|
850 |
Determines the size of a data tuple in ROW_FORMAT=COMPACT.
|
|
851 |
@return total size */
|
|
|
641.2.1
by Monty Taylor
InnoDB Plugin 1.0.2 |
852 |
UNIV_INTERN
|
853 |
ulint
|
|
854 |
rec_get_converted_size_comp( |
|
855 |
/*========================*/
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
856 |
const dict_index_t* index, /*!< in: record descriptor; |
|
641.2.1
by Monty Taylor
InnoDB Plugin 1.0.2 |
857 |
dict_table_is_comp() is
|
858 |
assumed to hold, even if
|
|
859 |
it does not */
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
860 |
ulint status, /*!< in: status bits of the record */ |
861 |
const dfield_t* fields, /*!< in: array of data fields */ |
|
862 |
ulint n_fields,/*!< in: number of data fields */ |
|
863 |
ulint* extra) /*!< out: extra size */ |
|
|
641.2.1
by Monty Taylor
InnoDB Plugin 1.0.2 |
864 |
{
|
865 |
ulint size; |
|
866 |
ut_ad(index); |
|
867 |
ut_ad(fields); |
|
868 |
ut_ad(n_fields > 0); |
|
869 |
||
870 |
switch (UNIV_EXPECT(status, REC_STATUS_ORDINARY)) { |
|
871 |
case REC_STATUS_ORDINARY: |
|
872 |
ut_ad(n_fields == dict_index_get_n_fields(index)); |
|
873 |
size = 0; |
|
874 |
break; |
|
875 |
case REC_STATUS_NODE_PTR: |
|
876 |
n_fields--; |
|
877 |
ut_ad(n_fields == dict_index_get_n_unique_in_tree(index)); |
|
878 |
ut_ad(dfield_get_len(&fields[n_fields]) == REC_NODE_PTR_SIZE); |
|
879 |
size = REC_NODE_PTR_SIZE; /* child page number */ |
|
880 |
break; |
|
881 |
case REC_STATUS_INFIMUM: |
|
882 |
case REC_STATUS_SUPREMUM: |
|
883 |
/* infimum or supremum record, 8 data bytes */
|
|
884 |
if (UNIV_LIKELY_NULL(extra)) { |
|
885 |
*extra = REC_N_NEW_EXTRA_BYTES; |
|
886 |
}
|
|
887 |
return(REC_N_NEW_EXTRA_BYTES + 8); |
|
888 |
default: |
|
889 |
ut_error; |
|
890 |
return(ULINT_UNDEFINED); |
|
891 |
}
|
|
892 |
||
893 |
return(size + rec_get_converted_size_comp_prefix(index, fields, |
|
894 |
n_fields, extra)); |
|
895 |
}
|
|
896 |
||
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
897 |
/***********************************************************//**
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
898 |
Sets the value of the ith field SQL null bit of an old-style record. */
|
899 |
UNIV_INTERN
|
|
900 |
void
|
|
901 |
rec_set_nth_field_null_bit( |
|
902 |
/*=======================*/
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
903 |
rec_t* rec, /*!< in: record */ |
904 |
ulint i, /*!< in: ith field */ |
|
905 |
ibool val) /*!< in: value to set */ |
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
906 |
{
|
907 |
ulint info; |
|
908 |
||
909 |
if (rec_get_1byte_offs_flag(rec)) { |
|
910 |
||
911 |
info = rec_1_get_field_end_info(rec, i); |
|
912 |
||
913 |
if (val) { |
|
914 |
info = info | REC_1BYTE_SQL_NULL_MASK; |
|
915 |
} else { |
|
916 |
info = info & ~REC_1BYTE_SQL_NULL_MASK; |
|
917 |
}
|
|
918 |
||
919 |
rec_1_set_field_end_info(rec, i, info); |
|
920 |
||
921 |
return; |
|
922 |
}
|
|
923 |
||
924 |
info = rec_2_get_field_end_info(rec, i); |
|
925 |
||
926 |
if (val) { |
|
927 |
info = info | REC_2BYTE_SQL_NULL_MASK; |
|
928 |
} else { |
|
929 |
info = info & ~REC_2BYTE_SQL_NULL_MASK; |
|
930 |
}
|
|
931 |
||
932 |
rec_2_set_field_end_info(rec, i, info); |
|
933 |
}
|
|
934 |
||
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
935 |
/***********************************************************//**
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
936 |
Sets an old-style record field to SQL null.
|
937 |
The physical size of the field is not changed. */
|
|
938 |
UNIV_INTERN
|
|
939 |
void
|
|
940 |
rec_set_nth_field_sql_null( |
|
941 |
/*=======================*/
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
942 |
rec_t* rec, /*!< in: record */ |
943 |
ulint n) /*!< in: index of the field */ |
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
944 |
{
|
945 |
ulint offset; |
|
946 |
||
947 |
offset = rec_get_field_start_offs(rec, n); |
|
948 |
||
949 |
data_write_sql_null(rec + offset, rec_get_nth_field_size(rec, n)); |
|
950 |
||
951 |
rec_set_nth_field_null_bit(rec, n, TRUE); |
|
952 |
}
|
|
953 |
||
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
954 |
/*********************************************************//**
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
955 |
Builds an old-style physical record out of a data tuple and
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
956 |
stores it beginning from the start of the given buffer.
|
957 |
@return pointer to the origin of physical record */
|
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
958 |
static
|
959 |
rec_t* |
|
960 |
rec_convert_dtuple_to_rec_old( |
|
961 |
/*==========================*/
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
962 |
byte* buf, /*!< in: start address of the physical record */ |
963 |
const dtuple_t* dtuple, /*!< in: data tuple */ |
|
964 |
ulint n_ext) /*!< in: number of externally stored columns */ |
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
965 |
{
|
966 |
const dfield_t* field; |
|
967 |
ulint n_fields; |
|
968 |
ulint data_size; |
|
969 |
rec_t* rec; |
|
970 |
ulint end_offset; |
|
971 |
ulint ored_offset; |
|
972 |
ulint len; |
|
973 |
ulint i; |
|
974 |
||
975 |
ut_ad(buf && dtuple); |
|
976 |
ut_ad(dtuple_validate(dtuple)); |
|
977 |
ut_ad(dtuple_check_typed(dtuple)); |
|
978 |
||
979 |
n_fields = dtuple_get_n_fields(dtuple); |
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
980 |
data_size = dtuple_get_data_size(dtuple, 0); |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
981 |
|
982 |
ut_ad(n_fields > 0); |
|
983 |
||
984 |
/* Calculate the offset of the origin in the physical record */
|
|
985 |
||
986 |
rec = buf + rec_get_converted_extra_size(data_size, n_fields, n_ext); |
|
987 |
#ifdef UNIV_DEBUG
|
|
988 |
/* Suppress Valgrind warnings of ut_ad()
|
|
989 |
in mach_write_to_1(), mach_write_to_2() et al. */
|
|
990 |
memset(buf, 0xff, rec - buf + data_size); |
|
991 |
#endif /* UNIV_DEBUG */ |
|
992 |
/* Store the number of fields */
|
|
993 |
rec_set_n_fields_old(rec, n_fields); |
|
994 |
||
995 |
/* Set the info bits of the record */
|
|
996 |
rec_set_info_bits_old(rec, dtuple_get_info_bits(dtuple) |
|
997 |
& REC_INFO_BITS_MASK); |
|
998 |
||
999 |
/* Store the data and the offsets */
|
|
1000 |
||
1001 |
end_offset = 0; |
|
1002 |
||
1003 |
if (!n_ext && data_size <= REC_1BYTE_OFFS_LIMIT) { |
|
1004 |
||
1005 |
rec_set_1byte_offs_flag(rec, TRUE); |
|
1006 |
||
1007 |
for (i = 0; i < n_fields; i++) { |
|
1008 |
||
1009 |
field = dtuple_get_nth_field(dtuple, i); |
|
1010 |
||
1011 |
if (dfield_is_null(field)) { |
|
1012 |
len = dtype_get_sql_null_size( |
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1013 |
dfield_get_type(field), 0); |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1014 |
data_write_sql_null(rec + end_offset, len); |
1015 |
||
1016 |
end_offset += len; |
|
1017 |
ored_offset = end_offset |
|
1018 |
| REC_1BYTE_SQL_NULL_MASK; |
|
1019 |
} else { |
|
1020 |
/* If the data is not SQL null, store it */
|
|
1021 |
len = dfield_get_len(field); |
|
1022 |
||
1023 |
memcpy(rec + end_offset, |
|
1024 |
dfield_get_data(field), len); |
|
1025 |
||
1026 |
end_offset += len; |
|
1027 |
ored_offset = end_offset; |
|
1028 |
}
|
|
1029 |
||
1030 |
rec_1_set_field_end_info(rec, i, ored_offset); |
|
1031 |
}
|
|
1032 |
} else { |
|
1033 |
rec_set_1byte_offs_flag(rec, FALSE); |
|
1034 |
||
1035 |
for (i = 0; i < n_fields; i++) { |
|
1036 |
||
1037 |
field = dtuple_get_nth_field(dtuple, i); |
|
1038 |
||
1039 |
if (dfield_is_null(field)) { |
|
1040 |
len = dtype_get_sql_null_size( |
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1041 |
dfield_get_type(field), 0); |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1042 |
data_write_sql_null(rec + end_offset, len); |
1043 |
||
1044 |
end_offset += len; |
|
1045 |
ored_offset = end_offset |
|
1046 |
| REC_2BYTE_SQL_NULL_MASK; |
|
1047 |
} else { |
|
1048 |
/* If the data is not SQL null, store it */
|
|
1049 |
len = dfield_get_len(field); |
|
1050 |
||
1051 |
memcpy(rec + end_offset, |
|
1052 |
dfield_get_data(field), len); |
|
1053 |
||
1054 |
end_offset += len; |
|
1055 |
ored_offset = end_offset; |
|
1056 |
||
1057 |
if (dfield_is_ext(field)) { |
|
1058 |
ored_offset |= REC_2BYTE_EXTERN_MASK; |
|
1059 |
}
|
|
1060 |
}
|
|
1061 |
||
1062 |
rec_2_set_field_end_info(rec, i, ored_offset); |
|
1063 |
}
|
|
1064 |
}
|
|
1065 |
||
1066 |
return(rec); |
|
1067 |
}
|
|
1068 |
||
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1069 |
/*********************************************************//**
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1070 |
Builds a ROW_FORMAT=COMPACT record out of a data tuple. */
|
1071 |
UNIV_INTERN
|
|
1072 |
void
|
|
1073 |
rec_convert_dtuple_to_rec_comp( |
|
1074 |
/*===========================*/
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1075 |
rec_t* rec, /*!< in: origin of record */ |
1076 |
ulint extra, /*!< in: number of bytes to |
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1077 |
reserve between the record
|
1078 |
header and the data payload
|
|
1079 |
(normally REC_N_NEW_EXTRA_BYTES) */
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1080 |
const dict_index_t* index, /*!< in: record descriptor */ |
1081 |
ulint status, /*!< in: status bits of the record */ |
|
1082 |
const dfield_t* fields, /*!< in: array of data fields */ |
|
1083 |
ulint n_fields)/*!< in: number of data fields */ |
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1084 |
{
|
1085 |
const dfield_t* field; |
|
1086 |
const dtype_t* type; |
|
1087 |
byte* end; |
|
1088 |
byte* nulls; |
|
1089 |
byte* lens; |
|
1090 |
ulint len; |
|
1091 |
ulint i; |
|
1092 |
ulint n_node_ptr_field; |
|
1093 |
ulint fixed_len; |
|
1094 |
ulint null_mask = 1; |
|
|
641.2.1
by Monty Taylor
InnoDB Plugin 1.0.2 |
1095 |
ut_ad(extra == 0 || dict_table_is_comp(index->table)); |
1096 |
ut_ad(extra == 0 || extra == REC_N_NEW_EXTRA_BYTES); |
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1097 |
ut_ad(n_fields > 0); |
1098 |
||
1099 |
switch (UNIV_EXPECT(status, REC_STATUS_ORDINARY)) { |
|
1100 |
case REC_STATUS_ORDINARY: |
|
1101 |
ut_ad(n_fields <= dict_index_get_n_fields(index)); |
|
1102 |
n_node_ptr_field = ULINT_UNDEFINED; |
|
1103 |
break; |
|
1104 |
case REC_STATUS_NODE_PTR: |
|
1105 |
ut_ad(n_fields == dict_index_get_n_unique_in_tree(index) + 1); |
|
1106 |
n_node_ptr_field = n_fields - 1; |
|
1107 |
break; |
|
1108 |
case REC_STATUS_INFIMUM: |
|
1109 |
case REC_STATUS_SUPREMUM: |
|
1110 |
ut_ad(n_fields == 1); |
|
1111 |
n_node_ptr_field = ULINT_UNDEFINED; |
|
1112 |
break; |
|
1113 |
default: |
|
1114 |
ut_error; |
|
1115 |
return; |
|
1116 |
}
|
|
1117 |
||
1118 |
end = rec; |
|
1119 |
nulls = rec - (extra + 1); |
|
1120 |
lens = nulls - UT_BITS_IN_BYTES(index->n_nullable); |
|
1121 |
/* clear the SQL-null flags */
|
|
1122 |
memset(lens + 1, 0, nulls - lens); |
|
1123 |
||
1124 |
/* Store the data and the offsets */
|
|
1125 |
||
1126 |
for (i = 0, field = fields; i < n_fields; i++, field++) { |
|
|
1819.7.69
by Vasil Dimov, Stewart Smith
Merge Revision revid:vasil.dimov@oracle.com-20100422112442-enb8mpw7jla5uvaz from MySQL InnoDB |
1127 |
const dict_field_t* ifield; |
1128 |
||
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1129 |
type = dfield_get_type(field); |
1130 |
len = dfield_get_len(field); |
|
1131 |
||
1132 |
if (UNIV_UNLIKELY(i == n_node_ptr_field)) { |
|
1133 |
ut_ad(dtype_get_prtype(type) & DATA_NOT_NULL); |
|
1134 |
ut_ad(len == 4); |
|
1135 |
memcpy(end, dfield_get_data(field), len); |
|
1136 |
end += 4; |
|
1137 |
break; |
|
1138 |
}
|
|
1139 |
||
1140 |
if (!(dtype_get_prtype(type) & DATA_NOT_NULL)) { |
|
1141 |
/* nullable field */
|
|
1142 |
ut_ad(index->n_nullable > 0); |
|
1143 |
||
1144 |
if (UNIV_UNLIKELY(!(byte) null_mask)) { |
|
1145 |
nulls--; |
|
1146 |
null_mask = 1; |
|
1147 |
}
|
|
1148 |
||
1149 |
ut_ad(*nulls < null_mask); |
|
1150 |
||
1151 |
/* set the null flag if necessary */
|
|
1152 |
if (dfield_is_null(field)) { |
|
1153 |
*nulls |= null_mask; |
|
1154 |
null_mask <<= 1; |
|
1155 |
continue; |
|
1156 |
}
|
|
1157 |
||
1158 |
null_mask <<= 1; |
|
1159 |
}
|
|
1160 |
/* only nullable fields can be null */
|
|
1161 |
ut_ad(!dfield_is_null(field)); |
|
1162 |
||
|
1819.7.69
by Vasil Dimov, Stewart Smith
Merge Revision revid:vasil.dimov@oracle.com-20100422112442-enb8mpw7jla5uvaz from MySQL InnoDB |
1163 |
ifield = dict_index_get_nth_field(index, i); |
1164 |
fixed_len = ifield->fixed_len; |
|
1165 |
/* If the maximum length of a variable-length field
|
|
1166 |
is up to 255 bytes, the actual length is always stored
|
|
1167 |
in one byte. If the maximum length is more than 255
|
|
1168 |
bytes, the actual length is stored in one byte for
|
|
1169 |
0..127. The length will be encoded in two bytes when
|
|
1170 |
it is 128 or more, or when the field is stored externally. */
|
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1171 |
if (fixed_len) { |
1172 |
ut_ad(len == fixed_len); |
|
1173 |
ut_ad(!dfield_is_ext(field)); |
|
1174 |
} else if (dfield_is_ext(field)) { |
|
|
1819.7.69
by Vasil Dimov, Stewart Smith
Merge Revision revid:vasil.dimov@oracle.com-20100422112442-enb8mpw7jla5uvaz from MySQL InnoDB |
1175 |
ut_ad(ifield->col->len >= 256 |
1176 |
|| ifield->col->mtype == DATA_BLOB); |
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1177 |
ut_ad(len <= REC_MAX_INDEX_COL_LEN |
1178 |
+ BTR_EXTERN_FIELD_REF_SIZE); |
|
1179 |
*lens-- = (byte) (len >> 8) | 0xc0; |
|
1180 |
*lens-- = (byte) len; |
|
1181 |
} else { |
|
1182 |
ut_ad(len <= dtype_get_len(type) |
|
1183 |
|| dtype_get_mtype(type) == DATA_BLOB); |
|
1184 |
if (len < 128 |
|
1185 |
|| (dtype_get_len(type) < 256 |
|
1186 |
&& dtype_get_mtype(type) != DATA_BLOB)) { |
|
1187 |
||
1188 |
*lens-- = (byte) len; |
|
1189 |
} else { |
|
1190 |
ut_ad(len < 16384); |
|
1191 |
*lens-- = (byte) (len >> 8) | 0x80; |
|
1192 |
*lens-- = (byte) len; |
|
1193 |
}
|
|
1194 |
}
|
|
1195 |
||
1196 |
memcpy(end, dfield_get_data(field), len); |
|
1197 |
end += len; |
|
1198 |
}
|
|
1199 |
}
|
|
1200 |
||
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1201 |
/*********************************************************//**
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1202 |
Builds a new-style physical record out of a data tuple and
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1203 |
stores it beginning from the start of the given buffer.
|
1204 |
@return pointer to the origin of physical record */
|
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1205 |
static
|
1206 |
rec_t* |
|
1207 |
rec_convert_dtuple_to_rec_new( |
|
1208 |
/*==========================*/
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1209 |
byte* buf, /*!< in: start address of |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1210 |
the physical record */
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1211 |
const dict_index_t* index, /*!< in: record descriptor */ |
1212 |
const dtuple_t* dtuple) /*!< in: data tuple */ |
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1213 |
{
|
1214 |
ulint extra_size; |
|
1215 |
ulint status; |
|
1216 |
rec_t* rec; |
|
1217 |
||
1218 |
status = dtuple_get_info_bits(dtuple) & REC_NEW_STATUS_MASK; |
|
1219 |
rec_get_converted_size_comp(index, status, |
|
1220 |
dtuple->fields, dtuple->n_fields, |
|
1221 |
&extra_size); |
|
1222 |
rec = buf + extra_size; |
|
1223 |
||
1224 |
rec_convert_dtuple_to_rec_comp( |
|
1225 |
rec, REC_N_NEW_EXTRA_BYTES, index, status, |
|
1226 |
dtuple->fields, dtuple->n_fields); |
|
1227 |
||
1228 |
/* Set the info bits of the record */
|
|
1229 |
rec_set_info_and_status_bits(rec, dtuple_get_info_bits(dtuple)); |
|
1230 |
||
1231 |
return(rec); |
|
1232 |
}
|
|
1233 |
||
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1234 |
/*********************************************************//**
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1235 |
Builds a physical record out of a data tuple and
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1236 |
stores it beginning from the start of the given buffer.
|
1237 |
@return pointer to the origin of physical record */
|
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1238 |
UNIV_INTERN
|
1239 |
rec_t* |
|
1240 |
rec_convert_dtuple_to_rec( |
|
1241 |
/*======================*/
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1242 |
byte* buf, /*!< in: start address of the |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1243 |
physical record */
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1244 |
const dict_index_t* index, /*!< in: record descriptor */ |
1245 |
const dtuple_t* dtuple, /*!< in: data tuple */ |
|
1246 |
ulint n_ext) /*!< in: number of |
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1247 |
externally stored columns */
|
1248 |
{
|
|
1249 |
rec_t* rec; |
|
1250 |
||
1251 |
ut_ad(buf && index && dtuple); |
|
1252 |
ut_ad(dtuple_validate(dtuple)); |
|
1253 |
ut_ad(dtuple_check_typed(dtuple)); |
|
1254 |
||
1255 |
if (dict_table_is_comp(index->table)) { |
|
1256 |
rec = rec_convert_dtuple_to_rec_new(buf, index, dtuple); |
|
1257 |
} else { |
|
1258 |
rec = rec_convert_dtuple_to_rec_old(buf, dtuple, n_ext); |
|
1259 |
}
|
|
1260 |
||
1261 |
#ifdef UNIV_DEBUG
|
|
1262 |
{
|
|
1263 |
mem_heap_t* heap = NULL; |
|
1264 |
ulint offsets_[REC_OFFS_NORMAL_SIZE]; |
|
1265 |
const ulint* offsets; |
|
|
1819.7.69
by Vasil Dimov, Stewart Smith
Merge Revision revid:vasil.dimov@oracle.com-20100422112442-enb8mpw7jla5uvaz from MySQL InnoDB |
1266 |
ulint i; |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1267 |
rec_offs_init(offsets_); |
1268 |
||
1269 |
offsets = rec_get_offsets(rec, index, |
|
1270 |
offsets_, ULINT_UNDEFINED, &heap); |
|
1271 |
ut_ad(rec_validate(rec, offsets)); |
|
|
1819.7.69
by Vasil Dimov, Stewart Smith
Merge Revision revid:vasil.dimov@oracle.com-20100422112442-enb8mpw7jla5uvaz from MySQL InnoDB |
1272 |
ut_ad(dtuple_get_n_fields(dtuple) |
1273 |
== rec_offs_n_fields(offsets)); |
|
1274 |
||
1275 |
for (i = 0; i < rec_offs_n_fields(offsets); i++) { |
|
1276 |
ut_ad(!dfield_is_ext(dtuple_get_nth_field(dtuple, i)) |
|
1277 |
== !rec_offs_nth_extern(offsets, i)); |
|
1278 |
}
|
|
1279 |
||
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1280 |
if (UNIV_LIKELY_NULL(heap)) { |
1281 |
mem_heap_free(heap); |
|
1282 |
}
|
|
1283 |
}
|
|
1284 |
#endif /* UNIV_DEBUG */ |
|
1285 |
return(rec); |
|
1286 |
}
|
|
1287 |
||
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1288 |
/**************************************************************//**
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1289 |
Copies the first n fields of a physical record to a data tuple. The fields
|
1290 |
are copied to the memory heap. */
|
|
1291 |
UNIV_INTERN
|
|
1292 |
void
|
|
1293 |
rec_copy_prefix_to_dtuple( |
|
1294 |
/*======================*/
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1295 |
dtuple_t* tuple, /*!< out: data tuple */ |
1296 |
const rec_t* rec, /*!< in: physical record */ |
|
1297 |
const dict_index_t* index, /*!< in: record descriptor */ |
|
1298 |
ulint n_fields, /*!< in: number of fields |
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1299 |
to copy */
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1300 |
mem_heap_t* heap) /*!< in: memory heap */ |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1301 |
{
|
1302 |
ulint i; |
|
1303 |
ulint offsets_[REC_OFFS_NORMAL_SIZE]; |
|
1304 |
ulint* offsets = offsets_; |
|
1305 |
rec_offs_init(offsets_); |
|
1306 |
||
1307 |
offsets = rec_get_offsets(rec, index, offsets, n_fields, &heap); |
|
1308 |
||
1309 |
ut_ad(rec_validate(rec, offsets)); |
|
1310 |
ut_ad(dtuple_check_typed(tuple)); |
|
1311 |
||
1312 |
dtuple_set_info_bits(tuple, rec_get_info_bits( |
|
1313 |
rec, dict_table_is_comp(index->table))); |
|
1314 |
||
1315 |
for (i = 0; i < n_fields; i++) { |
|
1316 |
dfield_t* field; |
|
1317 |
const byte* data; |
|
1318 |
ulint len; |
|
1319 |
||
1320 |
field = dtuple_get_nth_field(tuple, i); |
|
1321 |
data = rec_get_nth_field(rec, offsets, i, &len); |
|
1322 |
||
1323 |
if (len != UNIV_SQL_NULL) { |
|
1324 |
dfield_set_data(field, |
|
1325 |
mem_heap_dup(heap, data, len), len); |
|
1326 |
ut_ad(!rec_offs_nth_extern(offsets, i)); |
|
1327 |
} else { |
|
1328 |
dfield_set_null(field); |
|
1329 |
}
|
|
1330 |
}
|
|
1331 |
}
|
|
1332 |
||
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1333 |
/**************************************************************//**
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1334 |
Copies the first n fields of an old-style physical record
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1335 |
to a new physical record in a buffer.
|
1336 |
@return own: copied record */
|
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1337 |
static
|
1338 |
rec_t* |
|
1339 |
rec_copy_prefix_to_buf_old( |
|
1340 |
/*=======================*/
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1341 |
const rec_t* rec, /*!< in: physical record */ |
1342 |
ulint n_fields, /*!< in: number of fields to copy */ |
|
1343 |
ulint area_end, /*!< in: end of the prefix data */ |
|
1344 |
byte** buf, /*!< in/out: memory buffer for |
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1345 |
the copied prefix, or NULL */
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1346 |
ulint* buf_size) /*!< in/out: buffer size */ |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1347 |
{
|
1348 |
rec_t* copy_rec; |
|
1349 |
ulint area_start; |
|
1350 |
ulint prefix_len; |
|
1351 |
||
1352 |
if (rec_get_1byte_offs_flag(rec)) { |
|
1353 |
area_start = REC_N_OLD_EXTRA_BYTES + n_fields; |
|
1354 |
} else { |
|
1355 |
area_start = REC_N_OLD_EXTRA_BYTES + 2 * n_fields; |
|
1356 |
}
|
|
1357 |
||
1358 |
prefix_len = area_start + area_end; |
|
1359 |
||
1360 |
if ((*buf == NULL) || (*buf_size < prefix_len)) { |
|
1361 |
if (*buf != NULL) { |
|
1362 |
mem_free(*buf); |
|
1363 |
}
|
|
1364 |
||
|
2023.3.12
by Monty Taylor
Through rem0rec. |
1365 |
*buf = static_cast<byte *>(mem_alloc2(prefix_len, buf_size)); |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1366 |
}
|
1367 |
||
1368 |
ut_memcpy(*buf, rec - area_start, prefix_len); |
|
1369 |
||
1370 |
copy_rec = *buf + area_start; |
|
1371 |
||
1372 |
rec_set_n_fields_old(copy_rec, n_fields); |
|
1373 |
||
1374 |
return(copy_rec); |
|
1375 |
}
|
|
1376 |
||
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1377 |
/**************************************************************//**
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1378 |
Copies the first n fields of a physical record to a new physical record in
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1379 |
a buffer.
|
1380 |
@return own: copied record */
|
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1381 |
UNIV_INTERN
|
1382 |
rec_t* |
|
1383 |
rec_copy_prefix_to_buf( |
|
1384 |
/*===================*/
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1385 |
const rec_t* rec, /*!< in: physical record */ |
1386 |
const dict_index_t* index, /*!< in: record descriptor */ |
|
1387 |
ulint n_fields, /*!< in: number of fields |
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1388 |
to copy */
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1389 |
byte** buf, /*!< in/out: memory buffer |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1390 |
for the copied prefix,
|
1391 |
or NULL */
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1392 |
ulint* buf_size) /*!< in/out: buffer size */ |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1393 |
{
|
1394 |
const byte* nulls; |
|
1395 |
const byte* lens; |
|
1396 |
ulint i; |
|
1397 |
ulint prefix_len; |
|
1398 |
ulint null_mask; |
|
1399 |
ulint status; |
|
1400 |
||
1401 |
UNIV_PREFETCH_RW(*buf); |
|
1402 |
||
1403 |
if (!dict_table_is_comp(index->table)) { |
|
1404 |
ut_ad(rec_validate_old(rec)); |
|
1405 |
return(rec_copy_prefix_to_buf_old( |
|
1406 |
rec, n_fields, |
|
1407 |
rec_get_field_start_offs(rec, n_fields), |
|
1408 |
buf, buf_size)); |
|
1409 |
}
|
|
1410 |
||
1411 |
status = rec_get_status(rec); |
|
1412 |
||
1413 |
switch (status) { |
|
1414 |
case REC_STATUS_ORDINARY: |
|
1415 |
ut_ad(n_fields <= dict_index_get_n_fields(index)); |
|
1416 |
break; |
|
1417 |
case REC_STATUS_NODE_PTR: |
|
1418 |
/* it doesn't make sense to copy the child page number field */
|
|
1419 |
ut_ad(n_fields <= dict_index_get_n_unique_in_tree(index)); |
|
1420 |
break; |
|
1421 |
case REC_STATUS_INFIMUM: |
|
1422 |
case REC_STATUS_SUPREMUM: |
|
1423 |
/* infimum or supremum record: no sense to copy anything */
|
|
1424 |
default: |
|
1425 |
ut_error; |
|
1426 |
return(NULL); |
|
1427 |
}
|
|
1428 |
||
1429 |
nulls = rec - (REC_N_NEW_EXTRA_BYTES + 1); |
|
1430 |
lens = nulls - UT_BITS_IN_BYTES(index->n_nullable); |
|
1431 |
UNIV_PREFETCH_R(lens); |
|
1432 |
prefix_len = 0; |
|
1433 |
null_mask = 1; |
|
1434 |
||
1435 |
/* read the lengths of fields 0..n */
|
|
1436 |
for (i = 0; i < n_fields; i++) { |
|
1437 |
const dict_field_t* field; |
|
1438 |
const dict_col_t* col; |
|
1439 |
||
1440 |
field = dict_index_get_nth_field(index, i); |
|
1441 |
col = dict_field_get_col(field); |
|
1442 |
||
1443 |
if (!(col->prtype & DATA_NOT_NULL)) { |
|
1444 |
/* nullable field => read the null flag */
|
|
1445 |
if (UNIV_UNLIKELY(!(byte) null_mask)) { |
|
1446 |
nulls--; |
|
1447 |
null_mask = 1; |
|
1448 |
}
|
|
1449 |
||
1450 |
if (*nulls & null_mask) { |
|
1451 |
null_mask <<= 1; |
|
1452 |
continue; |
|
1453 |
}
|
|
1454 |
||
1455 |
null_mask <<= 1; |
|
1456 |
}
|
|
1457 |
||
1458 |
if (field->fixed_len) { |
|
1459 |
prefix_len += field->fixed_len; |
|
1460 |
} else { |
|
1461 |
ulint len = *lens--; |
|
|
1819.7.69
by Vasil Dimov, Stewart Smith
Merge Revision revid:vasil.dimov@oracle.com-20100422112442-enb8mpw7jla5uvaz from MySQL InnoDB |
1462 |
/* If the maximum length of the column is up
|
1463 |
to 255 bytes, the actual length is always
|
|
1464 |
stored in one byte. If the maximum length is
|
|
1465 |
more than 255 bytes, the actual length is
|
|
1466 |
stored in one byte for 0..127. The length
|
|
1467 |
will be encoded in two bytes when it is 128 or
|
|
1468 |
more, or when the column is stored externally. */
|
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1469 |
if (col->len > 255 || col->mtype == DATA_BLOB) { |
1470 |
if (len & 0x80) { |
|
1471 |
/* 1exxxxxx */
|
|
1472 |
len &= 0x3f; |
|
1473 |
len <<= 8; |
|
1474 |
len |= *lens--; |
|
1475 |
UNIV_PREFETCH_R(lens); |
|
1476 |
}
|
|
1477 |
}
|
|
1478 |
prefix_len += len; |
|
1479 |
}
|
|
1480 |
}
|
|
1481 |
||
1482 |
UNIV_PREFETCH_R(rec + prefix_len); |
|
1483 |
||
1484 |
prefix_len += rec - (lens + 1); |
|
1485 |
||
1486 |
if ((*buf == NULL) || (*buf_size < prefix_len)) { |
|
1487 |
if (*buf != NULL) { |
|
1488 |
mem_free(*buf); |
|
1489 |
}
|
|
1490 |
||
|
2023.3.12
by Monty Taylor
Through rem0rec. |
1491 |
*buf = static_cast<byte *>(mem_alloc2(prefix_len, buf_size)); |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1492 |
}
|
1493 |
||
1494 |
memcpy(*buf, lens + 1, prefix_len); |
|
1495 |
||
1496 |
return(*buf + (rec - (lens + 1))); |
|
1497 |
}
|
|
1498 |
||
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1499 |
/***************************************************************//**
|
1500 |
Validates the consistency of an old-style physical record.
|
|
1501 |
@return TRUE if ok */
|
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1502 |
static
|
1503 |
ibool
|
|
1504 |
rec_validate_old( |
|
1505 |
/*=============*/
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1506 |
const rec_t* rec) /*!< in: physical record */ |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1507 |
{
|
1508 |
const byte* data; |
|
1509 |
ulint len; |
|
1510 |
ulint n_fields; |
|
1511 |
ulint len_sum = 0; |
|
1512 |
ulint sum = 0; |
|
1513 |
ulint i; |
|
1514 |
||
1515 |
ut_a(rec); |
|
1516 |
n_fields = rec_get_n_fields_old(rec); |
|
1517 |
||
1518 |
if ((n_fields == 0) || (n_fields > REC_MAX_N_FIELDS)) { |
|
1519 |
fprintf(stderr, "InnoDB: Error: record has %lu fields\n", |
|
1520 |
(ulong) n_fields); |
|
1521 |
return(FALSE); |
|
1522 |
}
|
|
1523 |
||
1524 |
for (i = 0; i < n_fields; i++) { |
|
1525 |
data = rec_get_nth_field_old(rec, i, &len); |
|
1526 |
||
1527 |
if (!((len < UNIV_PAGE_SIZE) || (len == UNIV_SQL_NULL))) { |
|
1528 |
fprintf(stderr, |
|
1529 |
"InnoDB: Error: record field %lu len %lu\n", |
|
1530 |
(ulong) i, |
|
1531 |
(ulong) len); |
|
1532 |
return(FALSE); |
|
1533 |
}
|
|
1534 |
||
1535 |
if (len != UNIV_SQL_NULL) { |
|
1536 |
len_sum += len; |
|
1537 |
sum += *(data + len -1); /* dereference the |
|
1538 |
end of the field to
|
|
1539 |
cause a memory trap
|
|
1540 |
if possible */
|
|
1541 |
} else { |
|
1542 |
len_sum += rec_get_nth_field_size(rec, i); |
|
1543 |
}
|
|
1544 |
}
|
|
1545 |
||
1546 |
if (len_sum != rec_get_data_size_old(rec)) { |
|
1547 |
fprintf(stderr, |
|
1548 |
"InnoDB: Error: record len should be %lu, len %lu\n", |
|
1549 |
(ulong) len_sum, |
|
1550 |
rec_get_data_size_old(rec)); |
|
1551 |
return(FALSE); |
|
1552 |
}
|
|
1553 |
||
1554 |
rec_dummy = sum; /* This is here only to fool the compiler */ |
|
1555 |
||
1556 |
return(TRUE); |
|
1557 |
}
|
|
1558 |
||
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1559 |
/***************************************************************//**
|
1560 |
Validates the consistency of a physical record.
|
|
1561 |
@return TRUE if ok */
|
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1562 |
UNIV_INTERN
|
1563 |
ibool
|
|
1564 |
rec_validate( |
|
1565 |
/*=========*/
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1566 |
const rec_t* rec, /*!< in: physical record */ |
1567 |
const ulint* offsets)/*!< in: array returned by rec_get_offsets() */ |
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1568 |
{
|
1569 |
const byte* data; |
|
1570 |
ulint len; |
|
1571 |
ulint n_fields; |
|
1572 |
ulint len_sum = 0; |
|
1573 |
ulint sum = 0; |
|
1574 |
ulint i; |
|
1575 |
||
1576 |
ut_a(rec); |
|
1577 |
n_fields = rec_offs_n_fields(offsets); |
|
1578 |
||
1579 |
if ((n_fields == 0) || (n_fields > REC_MAX_N_FIELDS)) { |
|
1580 |
fprintf(stderr, "InnoDB: Error: record has %lu fields\n", |
|
1581 |
(ulong) n_fields); |
|
1582 |
return(FALSE); |
|
1583 |
}
|
|
1584 |
||
1585 |
ut_a(rec_offs_comp(offsets) || n_fields <= rec_get_n_fields_old(rec)); |
|
1586 |
||
1587 |
for (i = 0; i < n_fields; i++) { |
|
1588 |
data = rec_get_nth_field(rec, offsets, i, &len); |
|
1589 |
||
1590 |
if (!((len < UNIV_PAGE_SIZE) || (len == UNIV_SQL_NULL))) { |
|
1591 |
fprintf(stderr, |
|
1592 |
"InnoDB: Error: record field %lu len %lu\n", |
|
1593 |
(ulong) i, |
|
1594 |
(ulong) len); |
|
1595 |
return(FALSE); |
|
1596 |
}
|
|
1597 |
||
1598 |
if (len != UNIV_SQL_NULL) { |
|
1599 |
len_sum += len; |
|
1600 |
sum += *(data + len -1); /* dereference the |
|
1601 |
end of the field to
|
|
1602 |
cause a memory trap
|
|
1603 |
if possible */
|
|
1604 |
} else if (!rec_offs_comp(offsets)) { |
|
1605 |
len_sum += rec_get_nth_field_size(rec, i); |
|
1606 |
}
|
|
1607 |
}
|
|
1608 |
||
1609 |
if (len_sum != rec_offs_data_size(offsets)) { |
|
1610 |
fprintf(stderr, |
|
1611 |
"InnoDB: Error: record len should be %lu, len %lu\n", |
|
1612 |
(ulong) len_sum, |
|
1613 |
(ulong) rec_offs_data_size(offsets)); |
|
1614 |
return(FALSE); |
|
1615 |
}
|
|
1616 |
||
1617 |
rec_dummy = sum; /* This is here only to fool the compiler */ |
|
1618 |
||
1619 |
if (!rec_offs_comp(offsets)) { |
|
1620 |
ut_a(rec_validate_old(rec)); |
|
1621 |
}
|
|
1622 |
||
1623 |
return(TRUE); |
|
1624 |
}
|
|
1625 |
||
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1626 |
/***************************************************************//**
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1627 |
Prints an old-style physical record. */
|
1628 |
UNIV_INTERN
|
|
1629 |
void
|
|
1630 |
rec_print_old( |
|
1631 |
/*==========*/
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1632 |
FILE* file, /*!< in: file where to print */ |
1633 |
const rec_t* rec) /*!< in: physical record */ |
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1634 |
{
|
1635 |
const byte* data; |
|
1636 |
ulint len; |
|
1637 |
ulint n; |
|
1638 |
ulint i; |
|
1639 |
||
1640 |
ut_ad(rec); |
|
1641 |
||
1642 |
n = rec_get_n_fields_old(rec); |
|
1643 |
||
1644 |
fprintf(file, "PHYSICAL RECORD: n_fields %lu;" |
|
1645 |
" %u-byte offsets; info bits %lu\n", |
|
1646 |
(ulong) n, |
|
1647 |
rec_get_1byte_offs_flag(rec) ? 1 : 2, |
|
1648 |
(ulong) rec_get_info_bits(rec, FALSE)); |
|
1649 |
||
1650 |
for (i = 0; i < n; i++) { |
|
1651 |
||
1652 |
data = rec_get_nth_field_old(rec, i, &len); |
|
1653 |
||
1654 |
fprintf(file, " %lu:", (ulong) i); |
|
1655 |
||
1656 |
if (len != UNIV_SQL_NULL) { |
|
1657 |
if (len <= 30) { |
|
1658 |
||
1659 |
ut_print_buf(file, data, len); |
|
1660 |
} else { |
|
1661 |
ut_print_buf(file, data, 30); |
|
1662 |
||
1663 |
fprintf(file, " (total %lu bytes)", |
|
1664 |
(ulong) len); |
|
1665 |
}
|
|
1666 |
} else { |
|
1667 |
fprintf(file, " SQL NULL, size %lu ", |
|
1668 |
rec_get_nth_field_size(rec, i)); |
|
1669 |
}
|
|
|
641.2.2
by Monty Taylor
InnoDB Plugin 1.0.3 |
1670 |
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1671 |
putc(';', file); |
|
641.2.2
by Monty Taylor
InnoDB Plugin 1.0.3 |
1672 |
putc('\n', file); |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1673 |
}
|
1674 |
||
1675 |
rec_validate_old(rec); |
|
1676 |
}
|
|
1677 |
||
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1678 |
#ifndef UNIV_HOTBACKUP
|
1679 |
/***************************************************************//**
|
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1680 |
Prints a physical record in ROW_FORMAT=COMPACT. Ignores the
|
1681 |
record header. */
|
|
1682 |
UNIV_INTERN
|
|
1683 |
void
|
|
1684 |
rec_print_comp( |
|
1685 |
/*===========*/
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1686 |
FILE* file, /*!< in: file where to print */ |
1687 |
const rec_t* rec, /*!< in: physical record */ |
|
1688 |
const ulint* offsets)/*!< in: array returned by rec_get_offsets() */ |
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1689 |
{
|
1690 |
ulint i; |
|
1691 |
||
1692 |
for (i = 0; i < rec_offs_n_fields(offsets); i++) { |
|
1693 |
const byte* data; |
|
1694 |
ulint len; |
|
1695 |
||
1696 |
data = rec_get_nth_field(rec, offsets, i, &len); |
|
1697 |
||
1698 |
fprintf(file, " %lu:", (ulong) i); |
|
1699 |
||
1700 |
if (len != UNIV_SQL_NULL) { |
|
1701 |
if (len <= 30) { |
|
1702 |
||
1703 |
ut_print_buf(file, data, len); |
|
1704 |
} else { |
|
1705 |
ut_print_buf(file, data, 30); |
|
1706 |
||
1707 |
fprintf(file, " (total %lu bytes)", |
|
1708 |
(ulong) len); |
|
1709 |
}
|
|
1710 |
} else { |
|
1711 |
fputs(" SQL NULL", file); |
|
1712 |
}
|
|
1713 |
putc(';', file); |
|
|
641.2.2
by Monty Taylor
InnoDB Plugin 1.0.3 |
1714 |
putc('\n', file); |
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1715 |
}
|
1716 |
}
|
|
1717 |
||
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1718 |
/***************************************************************//**
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1719 |
Prints a physical record. */
|
1720 |
UNIV_INTERN
|
|
1721 |
void
|
|
1722 |
rec_print_new( |
|
1723 |
/*==========*/
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1724 |
FILE* file, /*!< in: file where to print */ |
1725 |
const rec_t* rec, /*!< in: physical record */ |
|
1726 |
const ulint* offsets)/*!< in: array returned by rec_get_offsets() */ |
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1727 |
{
|
1728 |
ut_ad(rec); |
|
1729 |
ut_ad(offsets); |
|
1730 |
ut_ad(rec_offs_validate(rec, NULL, offsets)); |
|
1731 |
||
1732 |
if (!rec_offs_comp(offsets)) { |
|
1733 |
rec_print_old(file, rec); |
|
1734 |
return; |
|
1735 |
}
|
|
1736 |
||
1737 |
fprintf(file, "PHYSICAL RECORD: n_fields %lu;" |
|
1738 |
" compact format; info bits %lu\n", |
|
1739 |
(ulong) rec_offs_n_fields(offsets), |
|
1740 |
(ulong) rec_get_info_bits(rec, TRUE)); |
|
1741 |
||
1742 |
rec_print_comp(file, rec, offsets); |
|
1743 |
rec_validate(rec, offsets); |
|
1744 |
}
|
|
1745 |
||
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1746 |
/***************************************************************//**
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1747 |
Prints a physical record. */
|
1748 |
UNIV_INTERN
|
|
1749 |
void
|
|
1750 |
rec_print( |
|
1751 |
/*======*/
|
|
|
1819.9.169
by Marko Mäkelä, Stewart Smith
Merge Revision revid:marko.makela@oracle.com-20101019060415-bj3u6ewk022mk4nr from MySQL InnoDB |
1752 |
FILE* file, /*!< in: file where to print */ |
1753 |
const rec_t* rec, /*!< in: physical record */ |
|
1754 |
const dict_index_t* index) /*!< in: record descriptor */ |
|
|
641.1.2
by Monty Taylor
Imported 1.0.1 with clean - with no changes. |
1755 |
{
|
1756 |
ut_ad(index); |
|
1757 |
||
1758 |
if (!dict_table_is_comp(index->table)) { |
|
1759 |
rec_print_old(file, rec); |
|
1760 |
return; |
|
1761 |
} else { |
|
1762 |
mem_heap_t* heap = NULL; |
|
1763 |
ulint offsets_[REC_OFFS_NORMAL_SIZE]; |
|
1764 |
rec_offs_init(offsets_); |
|
1765 |
||
1766 |
rec_print_new(file, rec, |
|
1767 |
rec_get_offsets(rec, index, offsets_, |
|
1768 |
ULINT_UNDEFINED, &heap)); |
|
1769 |
if (UNIV_LIKELY_NULL(heap)) { |
|
1770 |
mem_heap_free(heap); |
|
1771 |
}
|
|
1772 |
}
|
|
1773 |
}
|
|
|
641.2.3
by Monty Taylor
InnoDB Plugin 1.0.4 |
1774 |
#endif /* !UNIV_HOTBACKUP */ |