1
by brian
clean slate |
1 |
/* Copyright (C) 2000 MySQL AB
|
2 |
||
3 |
This program is free software; you can redistribute it and/or modify
|
|
4 |
it under the terms of the GNU General Public License as published by
|
|
5 |
the Free Software Foundation; version 2 of the License.
|
|
6 |
||
7 |
This program is distributed in the hope that it will be useful,
|
|
8 |
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
9 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
10 |
GNU General Public License for more details.
|
|
11 |
||
12 |
You should have received a copy of the GNU General Public License
|
|
13 |
along with this program; if not, write to the Free Software
|
|
1802.10.2
by Monty Taylor
Update all of the copyright headers to include the correct address. |
14 |
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
|
1
by brian
clean slate |
15 |
|
16 |
/*
|
|
17 |
Delete of records and truncate of tables.
|
|
18 |
||
19 |
Multi-table deletes were introduced by Monty and Sinisa
|
|
20 |
*/
|
|
2173.2.1
by Monty Taylor
Fixes incorrect usage of include |
21 |
#include <config.h> |
22 |
#include <drizzled/sql_select.h> |
|
23 |
#include <drizzled/error.h> |
|
24 |
#include <drizzled/probes.h> |
|
25 |
#include <drizzled/sql_parse.h> |
|
26 |
#include <drizzled/sql_base.h> |
|
27 |
#include <drizzled/lock.h> |
|
28 |
#include <drizzled/probes.h> |
|
29 |
#include <drizzled/optimizer/range.h> |
|
30 |
#include <drizzled/records.h> |
|
31 |
#include <drizzled/internal/iocache.h> |
|
32 |
#include <drizzled/transaction_services.h> |
|
33 |
#include <drizzled/filesort.h> |
|
2234.1.4
by Olaf van der Spek
Refactor includes |
34 |
#include <drizzled/sql_lex.h> |
2239.1.5
by Olaf van der Spek
Refactor includes |
35 |
#include <drizzled/diagnostics_area.h> |
2241.3.1
by Olaf van der Spek
Refactor Session::status_var |
36 |
#include <drizzled/statistics_variables.h> |
2241.3.4
by Olaf van der Spek
Refactor Session::transaction |
37 |
#include <drizzled/session/transactions.h> |
1
by brian
clean slate |
38 |
|
2239.1.5
by Olaf van der Spek
Refactor includes |
39 |
namespace drizzled { |
1130.1.4
by Monty Taylor
Moved StorageEngine into plugin namespace. |
40 |
|
1
by brian
clean slate |
41 |
/**
|
42 |
Implement DELETE SQL word.
|
|
43 |
||
44 |
@note Like implementations of other DDL/DML in MySQL, this function
|
|
45 |
relies on the caller to close the thread tables. This is done in the
|
|
46 |
end of dispatch_command().
|
|
47 |
*/
|
|
48 |
||
2026.2.1
by Monty Taylor
Renamed things prefixed mysql_ or mysqld_ |
49 |
bool delete_query(Session *session, TableList *table_list, COND *conds, |
1237.6.1
by Brian Aker
Remove dead bits in parser/whitespace/etc. |
50 |
SQL_LIST *order, ha_rows limit, uint64_t, |
1
by brian
clean slate |
51 |
bool reset_auto_increment) |
52 |
{
|
|
1237.6.1
by Brian Aker
Remove dead bits in parser/whitespace/etc. |
53 |
int error; |
327.1.5
by Brian Aker
Refactor around classes. TABLE_LIST has been factored out of table.h |
54 |
Table *table; |
1237.13.3
by Padraig O'Sullivan
Performed numerous style cleanups in range.[cc,h]. |
55 |
optimizer::SqlSelect *select= NULL; |
1538
by Brian Aker
Code shuffle on ReadRecord |
56 |
ReadRecord info; |
1
by brian
clean slate |
57 |
bool using_limit=limit != HA_POS_ERROR; |
1237.6.1
by Brian Aker
Remove dead bits in parser/whitespace/etc. |
58 |
bool transactional_table, const_cond; |
1
by brian
clean slate |
59 |
bool const_cond_result; |
60 |
ha_rows deleted= 0; |
|
482
by Brian Aker
Remove uint. |
61 |
uint32_t usable_index= MAX_KEY; |
2227.4.8
by Olaf van der Spek
Session::lex() |
62 |
Select_Lex *select_lex= &session->lex().select_lex; |
1910.2.8
by Brian Aker
Enapsulate Kill. |
63 |
Session::killed_state_t killed_status= Session::NOT_KILLED; |
660.1.3
by Eric Herman
removed trailing whitespace with simple script: |
64 |
|
1109.1.3
by Brian Aker
Move names around a bit (to align similar methods) |
65 |
if (session->openTablesLock(table_list)) |
1126.10.7
by Padraig O'Sullivan
Added calls to the dtrace delete begin/end probes. |
66 |
{
|
67 |
DRIZZLE_DELETE_DONE(1, 0); |
|
1109.1.2
by Brian Aker
More from the table patch |
68 |
return true; |
1126.10.7
by Padraig O'Sullivan
Added calls to the dtrace delete begin/end probes. |
69 |
}
|
737
by Brian Aker
Updates for dead code removal (and forced assert() in delete). |
70 |
|
71 |
table= table_list->table; |
|
72 |
assert(table); |
|
73 |
||
520.1.22
by Brian Aker
Second pass of thd cleanup |
74 |
session->set_proc_info("init"); |
1
by brian
clean slate |
75 |
table->map=1; |
76 |
||
2026.2.1
by Monty Taylor
Renamed things prefixed mysql_ or mysqld_ |
77 |
if (prepare_delete(session, table_list, &conds)) |
1864.3.21
by Brian Aker
sql_delete removal of goto |
78 |
{
|
79 |
DRIZZLE_DELETE_DONE(1, 0); |
|
80 |
return true; |
|
81 |
}
|
|
1
by brian
clean slate |
82 |
|
83 |
/* check ORDER BY even if it can be ignored */
|
|
84 |
if (order && order->elements) |
|
85 |
{
|
|
327.2.4
by Brian Aker
Refactoring table.h |
86 |
TableList tables; |
1
by brian
clean slate |
87 |
List<Item> fields; |
88 |
List<Item> all_fields; |
|
89 |
||
90 |
tables.table = table; |
|
91 |
tables.alias = table_list->alias; |
|
92 |
||
520.1.22
by Brian Aker
Second pass of thd cleanup |
93 |
if (select_lex->setup_ref_array(session, order->elements) || |
94 |
setup_order(session, select_lex->ref_pointer_array, &tables, |
|
1892.3.3
by tdavies
struct order_st changed and renamed to c++ class named:Order |
95 |
fields, all_fields, (Order*) order->first)) |
1864.3.21
by Brian Aker
sql_delete removal of goto |
96 |
{
|
97 |
delete select; |
|
2227.4.8
by Olaf van der Spek
Session::lex() |
98 |
free_underlaid_joins(session, &session->lex().select_lex); |
1864.3.21
by Brian Aker
sql_delete removal of goto |
99 |
DRIZZLE_DELETE_DONE(1, 0); |
100 |
||
101 |
return true; |
|
102 |
}
|
|
1
by brian
clean slate |
103 |
}
|
104 |
||
105 |
const_cond= (!conds || conds->const_item()); |
|
106 |
||
2227.4.8
by Olaf van der Spek
Session::lex() |
107 |
select_lex->no_error= session->lex().ignore; |
1
by brian
clean slate |
108 |
|
109 |
const_cond_result= const_cond && (!conds || conds->val_int()); |
|
520.1.22
by Brian Aker
Second pass of thd cleanup |
110 |
if (session->is_error()) |
1
by brian
clean slate |
111 |
{
|
112 |
/* Error evaluating val_int(). */
|
|
163
by Brian Aker
Merge Monty's code. |
113 |
return(true); |
1
by brian
clean slate |
114 |
}
|
115 |
||
116 |
/*
|
|
117 |
Test if the user wants to delete all rows and deletion doesn't have
|
|
118 |
any side-effects (because of triggers), so we can use optimized
|
|
119 |
handler::delete_all_rows() method.
|
|
120 |
||
121 |
We implement fast TRUNCATE for InnoDB even if triggers are
|
|
122 |
present. TRUNCATE ignores triggers.
|
|
123 |
||
124 |
We can use delete_all_rows() if and only if:
|
|
125 |
- We allow new functions (not using option --skip-new), and are
|
|
126 |
not in safe mode (not using option --safe-mode)
|
|
127 |
- There is no limit clause
|
|
128 |
- The condition is constant
|
|
129 |
- If there is a condition, then it it produces a non-zero value
|
|
130 |
- If the current command is DELETE FROM with no where clause
|
|
131 |
(i.e., not TRUNCATE) then:
|
|
132 |
- We should not be binlogging this statement row-based, and
|
|
133 |
- there should be no delete triggers associated with the table.
|
|
134 |
*/
|
|
581
by Brian Aker
Second pass through on replication row patch |
135 |
if (!using_limit && const_cond_result) |
1
by brian
clean slate |
136 |
{
|
1208.3.2
by brian
Update for Cursor renaming. |
137 |
/* Update the table->cursor->stats.records number */
|
138 |
table->cursor->info(HA_STATUS_VARIABLE | HA_STATUS_NO_LOCK); |
|
139 |
ha_rows const maybe_deleted= table->cursor->stats.records; |
|
140 |
if (!(error=table->cursor->ha_delete_all_rows())) |
|
1
by brian
clean slate |
141 |
{
|
142 |
error= -1; // ok |
|
143 |
deleted= maybe_deleted; |
|
144 |
goto cleanup; |
|
145 |
}
|
|
146 |
if (error != HA_ERR_WRONG_COMMAND) |
|
147 |
{
|
|
1216.1.1
by Brian Aker
Move print_error up to Engine. |
148 |
table->print_error(error,MYF(0)); |
1
by brian
clean slate |
149 |
error=0; |
150 |
goto cleanup; |
|
151 |
}
|
|
152 |
/* Handler didn't support fast delete; Delete rows one by one */
|
|
153 |
}
|
|
154 |
if (conds) |
|
155 |
{
|
|
156 |
Item::cond_result result; |
|
520.1.22
by Brian Aker
Second pass of thd cleanup |
157 |
conds= remove_eq_conds(session, conds, &result); |
1
by brian
clean slate |
158 |
if (result == Item::COND_FALSE) // Impossible where |
159 |
limit= 0; |
|
160 |
}
|
|
161 |
||
1208.3.2
by brian
Update for Cursor renaming. |
162 |
/* Update the table->cursor->stats.records number */
|
163 |
table->cursor->info(HA_STATUS_VARIABLE | HA_STATUS_NO_LOCK); |
|
1
by brian
clean slate |
164 |
|
1005.2.6
by Monty Taylor
Re-added bitset<> as a replacement for Bitmap<> |
165 |
table->covering_keys.reset(); |
166 |
table->quick_keys.reset(); // Can't use 'only index' |
|
1237.9.2
by Padraig O'Sullivan
Moved opt_range.[cc,h] into the optimizer directory and namespace and renamed the files to |
167 |
select= optimizer::make_select(table, 0, 0, conds, 0, &error); |
1
by brian
clean slate |
168 |
if (error) |
1864.3.21
by Brian Aker
sql_delete removal of goto |
169 |
{
|
170 |
DRIZZLE_DELETE_DONE(1, 0); |
|
171 |
return true; |
|
172 |
}
|
|
173 |
||
1237.6.1
by Brian Aker
Remove dead bits in parser/whitespace/etc. |
174 |
if ((select && select->check_quick(session, false, limit)) || !limit) |
1
by brian
clean slate |
175 |
{
|
176 |
delete select; |
|
520.1.22
by Brian Aker
Second pass of thd cleanup |
177 |
free_underlaid_joins(session, select_lex); |
178 |
session->row_count_func= 0; |
|
2062.4.1
by Andrew Hutchings
Backport http://bugs.mysql.com/bug.php?id=40113 |
179 |
if (session->is_error()) |
180 |
return true; |
|
1126.10.18
by Padraig O'Sullivan
Various small build fixes for when dtrace is enabled. |
181 |
DRIZZLE_DELETE_DONE(0, 0); |
1124.2.14
by Diego Medina
* On certain UPDATE and DELETE statements, drizzled failed an assert() in |
182 |
/**
|
183 |
* Resetting the Diagnostic area to prevent
|
|
184 |
* lp bug# 439719
|
|
185 |
*/
|
|
2239.1.4
by Olaf van der Spek
Refactor includes |
186 |
session->main_da().reset_diagnostics_area(); |
2148.5.2
by Brian Aker
Additional remove of current_session. |
187 |
session->my_ok((ha_rows) session->rowCount()); |
1
by brian
clean slate |
188 |
/*
|
189 |
We don't need to call reset_auto_increment in this case, because
|
|
190 |
mysql_truncate always gives a NULL conds argument, hence we never
|
|
191 |
get here.
|
|
192 |
*/
|
|
1126.10.7
by Padraig O'Sullivan
Added calls to the dtrace delete begin/end probes. |
193 |
return 0; // Nothing to delete |
1
by brian
clean slate |
194 |
}
|
195 |
||
196 |
/* If running in safe sql mode, don't allow updates without keys */
|
|
1005.2.6
by Monty Taylor
Re-added bitset<> as a replacement for Bitmap<> |
197 |
if (table->quick_keys.none()) |
1
by brian
clean slate |
198 |
{
|
520.1.22
by Brian Aker
Second pass of thd cleanup |
199 |
session->server_status|=SERVER_QUERY_NO_INDEX_USED; |
1
by brian
clean slate |
200 |
}
|
201 |
||
202 |
if (order && order->elements) |
|
203 |
{
|
|
482
by Brian Aker
Remove uint. |
204 |
uint32_t length= 0; |
1711.6.1
by Brian Aker
Style on structure cleanup |
205 |
SortField *sortorder; |
1
by brian
clean slate |
206 |
ha_rows examined_rows; |
660.1.3
by Eric Herman
removed trailing whitespace with simple script: |
207 |
|
1005.2.6
by Monty Taylor
Re-added bitset<> as a replacement for Bitmap<> |
208 |
if ((!select || table->quick_keys.none()) && limit != HA_POS_ERROR) |
1892.3.3
by tdavies
struct order_st changed and renamed to c++ class named:Order |
209 |
usable_index= optimizer::get_index_for_order(table, (Order*)(order->first), limit); |
1
by brian
clean slate |
210 |
|
211 |
if (usable_index == MAX_KEY) |
|
212 |
{
|
|
1905.1.1
by Brian Aker
Adding FileSort class. |
213 |
FileSort filesort(*session); |
1280.1.10
by Monty Taylor
Put everything in drizzled into drizzled namespace. |
214 |
table->sort.io_cache= new internal::IO_CACHE; |
660.1.3
by Eric Herman
removed trailing whitespace with simple script: |
215 |
|
216 |
||
1905.1.1
by Brian Aker
Adding FileSort class. |
217 |
if (not (sortorder= make_unireg_sortorder((Order*) order->first, &length, NULL)) || |
218 |
(table->sort.found_records = filesort.run(table, sortorder, length, |
|
219 |
select, HA_POS_ERROR, 1, |
|
1908.1.1
by Brian Aker
Merge in encapsulations in filesort. |
220 |
examined_rows)) == HA_POS_ERROR) |
1
by brian
clean slate |
221 |
{
|
222 |
delete select; |
|
2227.4.8
by Olaf van der Spek
Session::lex() |
223 |
free_underlaid_joins(session, &session->lex().select_lex); |
1864.3.21
by Brian Aker
sql_delete removal of goto |
224 |
|
225 |
DRIZZLE_DELETE_DONE(1, 0); |
|
226 |
return true; |
|
1
by brian
clean slate |
227 |
}
|
228 |
/*
|
|
229 |
Filesort has already found and selected the rows we want to delete,
|
|
230 |
so we don't need the where clause
|
|
231 |
*/
|
|
232 |
delete select; |
|
520.1.22
by Brian Aker
Second pass of thd cleanup |
233 |
free_underlaid_joins(session, select_lex); |
1
by brian
clean slate |
234 |
select= 0; |
235 |
}
|
|
236 |
}
|
|
237 |
||
238 |
/* If quick select is used, initialize it before retrieving rows. */
|
|
239 |
if (select && select->quick && select->quick->reset()) |
|
240 |
{
|
|
241 |
delete select; |
|
520.1.22
by Brian Aker
Second pass of thd cleanup |
242 |
free_underlaid_joins(session, select_lex); |
1864.3.21
by Brian Aker
sql_delete removal of goto |
243 |
DRIZZLE_DELETE_DONE(1, 0); |
244 |
return true; |
|
1
by brian
clean slate |
245 |
}
|
1237.6.1
by Brian Aker
Remove dead bits in parser/whitespace/etc. |
246 |
|
1
by brian
clean slate |
247 |
if (usable_index==MAX_KEY) |
1538
by Brian Aker
Code shuffle on ReadRecord |
248 |
{
|
2049.2.1
by Stewart Smith
doStartTableScan() result not checked. |
249 |
if ((error= info.init_read_record(session,table,select,1,1))) |
250 |
{
|
|
251 |
table->print_error(error, MYF(0)); |
|
252 |
delete select; |
|
253 |
free_underlaid_joins(session, select_lex); |
|
254 |
return true; |
|
255 |
}
|
|
1538
by Brian Aker
Code shuffle on ReadRecord |
256 |
}
|
1
by brian
clean slate |
257 |
else
|
1538
by Brian Aker
Code shuffle on ReadRecord |
258 |
{
|
2049.2.7
by Stewart Smith
init_read_record_idx return result should be checked now that it checks startIndexScan result. |
259 |
if ((error= info.init_read_record_idx(session, table, 1, usable_index))) |
260 |
{
|
|
261 |
table->print_error(error, MYF(0)); |
|
262 |
delete select; |
|
263 |
free_underlaid_joins(session, select_lex); |
|
264 |
return true; |
|
265 |
}
|
|
1538
by Brian Aker
Code shuffle on ReadRecord |
266 |
}
|
1
by brian
clean slate |
267 |
|
520.1.22
by Brian Aker
Second pass of thd cleanup |
268 |
session->set_proc_info("updating"); |
1
by brian
clean slate |
269 |
|
270 |
table->mark_columns_needed_for_delete(); |
|
271 |
||
1910.2.8
by Brian Aker
Enapsulate Kill. |
272 |
while (!(error=info.read_record(&info)) && !session->getKilled() && |
520.1.22
by Brian Aker
Second pass of thd cleanup |
273 |
! session->is_error()) |
1
by brian
clean slate |
274 |
{
|
520.1.22
by Brian Aker
Second pass of thd cleanup |
275 |
// session->is_error() is tested to disallow delete row on error
|
276 |
if (!(select && select->skip_record())&& ! session->is_error() ) |
|
1
by brian
clean slate |
277 |
{
|
1672.3.6
by Brian Aker
First pass in encapsulating row |
278 |
if (!(error= table->cursor->deleteRecord(table->getInsertRecord()))) |
1
by brian
clean slate |
279 |
{
|
280 |
deleted++; |
|
281 |
if (!--limit && using_limit) |
|
282 |
{
|
|
283 |
error= -1; |
|
284 |
break; |
|
285 |
}
|
|
286 |
}
|
|
287 |
else
|
|
288 |
{
|
|
1216.1.1
by Brian Aker
Move print_error up to Engine. |
289 |
table->print_error(error,MYF(0)); |
1
by brian
clean slate |
290 |
/*
|
291 |
In < 4.0.14 we set the error number to 0 here, but that
|
|
292 |
was not sensible, because then MySQL would not roll back the
|
|
293 |
failed DELETE, and also wrote it to the binlog. For MyISAM
|
|
294 |
tables a DELETE probably never should fail (?), but for
|
|
295 |
InnoDB it can fail in a FOREIGN KEY error or an
|
|
296 |
out-of-tablespace error.
|
|
297 |
*/
|
|
298 |
error= 1; |
|
299 |
break; |
|
300 |
}
|
|
301 |
}
|
|
302 |
else
|
|
1208.3.2
by brian
Update for Cursor renaming. |
303 |
table->cursor->unlock_row(); // Row failed selection, release lock on it |
1
by brian
clean slate |
304 |
}
|
1910.2.8
by Brian Aker
Enapsulate Kill. |
305 |
killed_status= session->getKilled(); |
520.1.22
by Brian Aker
Second pass of thd cleanup |
306 |
if (killed_status != Session::NOT_KILLED || session->is_error()) |
1
by brian
clean slate |
307 |
error= 1; // Aborted |
1237.6.1
by Brian Aker
Remove dead bits in parser/whitespace/etc. |
308 |
|
520.1.22
by Brian Aker
Second pass of thd cleanup |
309 |
session->set_proc_info("end"); |
1538
by Brian Aker
Code shuffle on ReadRecord |
310 |
info.end_read_record(); |
1
by brian
clean slate |
311 |
|
1208.2.2
by Brian Aker
Merge Truncate patch. This fixes all of the "half setup" of Truncate. Still |
312 |
cleanup: |
313 |
||
1
by brian
clean slate |
314 |
if (reset_auto_increment && (error < 0)) |
315 |
{
|
|
316 |
/*
|
|
317 |
We're really doing a truncate and need to reset the table's
|
|
318 |
auto-increment counter.
|
|
319 |
*/
|
|
1208.3.2
by brian
Update for Cursor renaming. |
320 |
int error2= table->cursor->ha_reset_auto_increment(0); |
1
by brian
clean slate |
321 |
|
322 |
if (error2 && (error2 != HA_ERR_WRONG_COMMAND)) |
|
323 |
{
|
|
1216.1.1
by Brian Aker
Move print_error up to Engine. |
324 |
table->print_error(error2, MYF(0)); |
1
by brian
clean slate |
325 |
error= 1; |
326 |
}
|
|
327 |
}
|
|
328 |
||
329 |
delete select; |
|
1208.3.2
by brian
Update for Cursor renaming. |
330 |
transactional_table= table->cursor->has_transactions(); |
1
by brian
clean slate |
331 |
|
332 |
if (!transactional_table && deleted > 0) |
|
1273.1.13
by Jay Pipes
Style cleanup around TransactionContext::modified_non_trans_table and dead code removal |
333 |
session->transaction.stmt.markModifiedNonTransData(); |
660.1.3
by Eric Herman
removed trailing whitespace with simple script: |
334 |
|
1
by brian
clean slate |
335 |
/* See similar binlogging code in sql_update.cc, for comments */
|
1273.1.13
by Jay Pipes
Style cleanup around TransactionContext::modified_non_trans_table and dead code removal |
336 |
if ((error < 0) || session->transaction.stmt.hasModifiedNonTransData()) |
1
by brian
clean slate |
337 |
{
|
1273.1.13
by Jay Pipes
Style cleanup around TransactionContext::modified_non_trans_table and dead code removal |
338 |
if (session->transaction.stmt.hasModifiedNonTransData()) |
339 |
session->transaction.all.markModifiedNonTransData(); |
|
1
by brian
clean slate |
340 |
}
|
1273.1.13
by Jay Pipes
Style cleanup around TransactionContext::modified_non_trans_table and dead code removal |
341 |
assert(transactional_table || !deleted || session->transaction.stmt.hasModifiedNonTransData()); |
520.1.22
by Brian Aker
Second pass of thd cleanup |
342 |
free_underlaid_joins(session, select_lex); |
1
by brian
clean slate |
343 |
|
1126.10.25
by Padraig O'Sullivan
Updated calls to some dtrace probes to cast the parameter to const char * |
344 |
DRIZZLE_DELETE_DONE((error >= 0 || session->is_error()), deleted); |
2227.4.8
by Olaf van der Spek
Session::lex() |
345 |
if (error < 0 || (session->lex().ignore && !session->is_fatal_error)) |
1
by brian
clean slate |
346 |
{
|
520.1.22
by Brian Aker
Second pass of thd cleanup |
347 |
session->row_count_func= deleted; |
1124.2.14
by Diego Medina
* On certain UPDATE and DELETE statements, drizzled failed an assert() in |
348 |
/**
|
349 |
* Resetting the Diagnostic area to prevent
|
|
350 |
* lp bug# 439719
|
|
351 |
*/
|
|
2239.1.4
by Olaf van der Spek
Refactor includes |
352 |
session->main_da().reset_diagnostics_area(); |
2148.5.2
by Brian Aker
Additional remove of current_session. |
353 |
session->my_ok((ha_rows) session->rowCount()); |
1
by brian
clean slate |
354 |
}
|
1625.2.2
by Joe Daly
add counter logic for rows sent/received/inserted/updated |
355 |
session->status_var.deleted_row_count+= deleted; |
1864.3.21
by Brian Aker
sql_delete removal of goto |
356 |
|
1126.10.7
by Padraig O'Sullivan
Added calls to the dtrace delete begin/end probes. |
357 |
return (error >= 0 || session->is_error()); |
1
by brian
clean slate |
358 |
}
|
359 |
||
360 |
||
361 |
/*
|
|
362 |
Prepare items in DELETE statement
|
|
363 |
||
364 |
SYNOPSIS
|
|
2026.2.1
by Monty Taylor
Renamed things prefixed mysql_ or mysqld_ |
365 |
prepare_delete()
|
520.1.22
by Brian Aker
Second pass of thd cleanup |
366 |
session - thread handler
|
1
by brian
clean slate |
367 |
table_list - global/local table list
|
368 |
conds - conditions
|
|
369 |
||
370 |
RETURN VALUE
|
|
163
by Brian Aker
Merge Monty's code. |
371 |
false OK
|
372 |
true error
|
|
1
by brian
clean slate |
373 |
*/
|
2026.2.1
by Monty Taylor
Renamed things prefixed mysql_ or mysqld_ |
374 |
int prepare_delete(Session *session, TableList *table_list, Item **conds) |
1
by brian
clean slate |
375 |
{
|
2227.4.8
by Olaf van der Spek
Session::lex() |
376 |
Select_Lex *select_lex= &session->lex().select_lex; |
660.1.3
by Eric Herman
removed trailing whitespace with simple script: |
377 |
|
1
by brian
clean slate |
378 |
List<Item> all_fields; |
379 |
||
2227.4.8
by Olaf van der Spek
Session::lex() |
380 |
session->lex().allow_sum_func= 0; |
381 |
if (setup_tables_and_check_access(session, &session->lex().select_lex.context, |
|
382 |
&session->lex().select_lex.top_join_list, |
|
660.1.3
by Eric Herman
removed trailing whitespace with simple script: |
383 |
table_list, |
1
by brian
clean slate |
384 |
&select_lex->leaf_tables, false) || |
1109.1.5
by Brian Aker
More extraction from sql_base |
385 |
session->setup_conds(table_list, conds)) |
163
by Brian Aker
Merge Monty's code. |
386 |
return(true); |
1
by brian
clean slate |
387 |
{
|
327.2.4
by Brian Aker
Refactoring table.h |
388 |
TableList *duplicate; |
1220.1.13
by Brian Aker
Remove mysql_lock_have_duplicate() (we don't have merge, and our partition |
389 |
if ((duplicate= unique_table(table_list, table_list->next_global))) |
1
by brian
clean slate |
390 |
{
|
1054.1.9
by Brian Aker
This is a large number of refactors against the Session class for its |
391 |
my_error(ER_UPDATE_TABLE_USED, MYF(0), table_list->alias); |
163
by Brian Aker
Merge Monty's code. |
392 |
return(true); |
1
by brian
clean slate |
393 |
}
|
394 |
}
|
|
395 |
||
2183.2.19
by Olaf van der Spek
Use List::size() |
396 |
if (select_lex->inner_refs_list.size() && |
520.1.22
by Brian Aker
Second pass of thd cleanup |
397 |
fix_inner_refs(session, all_fields, select_lex, select_lex->ref_pointer_array)) |
2062.4.1
by Andrew Hutchings
Backport http://bugs.mysql.com/bug.php?id=40113 |
398 |
return(true); |
1
by brian
clean slate |
399 |
|
163
by Brian Aker
Merge Monty's code. |
400 |
return(false); |
1
by brian
clean slate |
401 |
}
|
402 |
||
403 |
||
404 |
/***************************************************************************
|
|
327.1.5
by Brian Aker
Refactor around classes. TABLE_LIST has been factored out of table.h |
405 |
TRUNCATE Table
|
1
by brian
clean slate |
406 |
****************************************************************************/
|
407 |
||
408 |
/*
|
|
409 |
Optimize delete of all rows by doing a full generate of the table
|
|
410 |
This will work even if the .ISM and .ISD tables are destroyed
|
|
411 |
*/
|
|
412 |
||
2026.2.1
by Monty Taylor
Renamed things prefixed mysql_ or mysqld_ |
413 |
bool truncate(Session& session, TableList *table_list) |
1
by brian
clean slate |
414 |
{
|
415 |
bool error; |
|
1273.1.2
by Jay Pipes
This patch does not change any algorithms or code paths, |
416 |
TransactionServices &transaction_services= TransactionServices::singleton(); |
1208.2.2
by Brian Aker
Merge Truncate patch. This fixes all of the "half setup" of Truncate. Still |
417 |
|
1183.1.29
by Brian Aker
Clean up interface so that Truncate sets the propper engine when |
418 |
uint64_t save_options= session.options; |
1
by brian
clean slate |
419 |
table_list->lock_type= TL_WRITE; |
1183.1.29
by Brian Aker
Clean up interface so that Truncate sets the propper engine when |
420 |
session.options&= ~(OPTION_BEGIN | OPTION_NOT_AUTOCOMMIT); |
2227.4.10
by Olaf van der Spek
Session::lex() |
421 |
init_select(&session.lex()); |
2026.2.1
by Monty Taylor
Renamed things prefixed mysql_ or mysqld_ |
422 |
error= delete_query(&session, table_list, (COND*) 0, (SQL_LIST*) 0, |
398.1.8
by Monty Taylor
Enabled -Wlong-long. |
423 |
HA_POS_ERROR, 0L, true); |
1
by brian
clean slate |
424 |
/*
|
163
by Brian Aker
Merge Monty's code. |
425 |
Safety, in case the engine ignored ha_enable_transaction(false)
|
520.1.22
by Brian Aker
Second pass of thd cleanup |
426 |
above. Also clears session->transaction.*.
|
1
by brian
clean slate |
427 |
*/
|
2096.2.1
by David Shrewsbury
Initial change to use references to Session in TransactionServices methods rather than pointers. |
428 |
error= transaction_services.autocommitOrRollback(session, error); |
1183.1.29
by Brian Aker
Clean up interface so that Truncate sets the propper engine when |
429 |
session.options= save_options; |
430 |
||
1208.2.2
by Brian Aker
Merge Truncate patch. This fixes all of the "half setup" of Truncate. Still |
431 |
return error; |
1
by brian
clean slate |
432 |
}
|
1280.1.10
by Monty Taylor
Put everything in drizzled into drizzled namespace. |
433 |
|
434 |
} /* namespace drizzled */ |