1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
1 |
/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
|
2 |
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
|
|
3 |
*
|
|
1999.6.1
by kalebral at gmail
update Copyright strings to a more common format to help with creating the master debian copyright file |
4 |
* Copyright (C) 2008-2009 Sun Microsystems, Inc.
|
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
5 |
*
|
6 |
* This program is free software; you can redistribute it and/or modify
|
|
7 |
* it under the terms of the GNU General Public License as published by
|
|
8 |
* the Free Software Foundation; version 2 of the License.
|
|
9 |
*
|
|
10 |
* This program is distributed in the hope that it will be useful,
|
|
11 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
12 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
13 |
* GNU General Public License for more details.
|
|
14 |
*
|
|
15 |
* You should have received a copy of the GNU General Public License
|
|
16 |
* along with this program; if not, write to the Free Software
|
|
17 |
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
18 |
*/
|
|
19 |
||
2173.2.1
by Monty Taylor
Fixes incorrect usage of include |
20 |
#include <config.h> |
21 |
#include <drizzled/session.h> |
|
22 |
#include <drizzled/util/functors.h> |
|
23 |
#include <drizzled/optimizer/range.h> |
|
24 |
#include <drizzled/optimizer/quick_range_select.h> |
|
25 |
#include <drizzled/optimizer/quick_ror_union_select.h> |
|
2234.1.3
by Olaf van der Spek
Refactor includes |
26 |
#include <drizzled/table.h> |
2241.3.2
by Olaf van der Spek
Refactor Session::variables |
27 |
#include <drizzled/system_variables.h> |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
28 |
|
1237.13.15
by Padraig O'Sullivan
Used std::vector instead of List in the QuickRorUnionSelect class. |
29 |
#include <vector> |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
30 |
#include <algorithm> |
31 |
||
32 |
using namespace std; |
|
33 |
||
2241.3.2
by Olaf van der Spek
Refactor Session::variables |
34 |
namespace drizzled { |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
35 |
|
1237.13.14
by Padraig O'Sullivan
Corrected some style issues in quick_ror_union_select.[cc,h] and range.cc |
36 |
optimizer::QuickRorUnionSelect::QuickRorUnionSelect(Session *session_param, |
37 |
Table *table) |
|
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
38 |
:
|
39 |
session(session_param), |
|
40 |
scans_inited(false) |
|
41 |
{
|
|
42 |
index= MAX_KEY; |
|
43 |
head= table; |
|
44 |
rowid_length= table->cursor->ref_length; |
|
45 |
record= head->record[0]; |
|
2318.6.23
by Olaf van der Spek
Refactor |
46 |
alloc.init(session->variables.range_alloc_block_size); |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
47 |
session_param->mem_root= &alloc; |
48 |
}
|
|
49 |
||
50 |
/*
|
|
51 |
* Function object that is used as the comparison function
|
|
1237.13.14
by Padraig O'Sullivan
Corrected some style issues in quick_ror_union_select.[cc,h] and range.cc |
52 |
* for the priority queue in the QuickRorUnionSelect
|
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
53 |
* class.
|
54 |
*/
|
|
55 |
class optimizer::compare_functor |
|
56 |
{
|
|
1237.13.14
by Padraig O'Sullivan
Corrected some style issues in quick_ror_union_select.[cc,h] and range.cc |
57 |
optimizer::QuickRorUnionSelect *self; |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
58 |
public: |
1237.13.14
by Padraig O'Sullivan
Corrected some style issues in quick_ror_union_select.[cc,h] and range.cc |
59 |
compare_functor(optimizer::QuickRorUnionSelect *in_arg) |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
60 |
: self(in_arg) { } |
61 |
inline bool operator()(const optimizer::QuickSelectInterface *i, const optimizer::QuickSelectInterface *j) const |
|
62 |
{
|
|
63 |
int val= self->head->cursor->cmp_ref(i->last_rowid, |
|
64 |
j->last_rowid); |
|
65 |
return (val >= 0); |
|
66 |
}
|
|
67 |
};
|
|
68 |
||
69 |
||
1237.13.14
by Padraig O'Sullivan
Corrected some style issues in quick_ror_union_select.[cc,h] and range.cc |
70 |
int optimizer::QuickRorUnionSelect::init() |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
71 |
{
|
2318.6.44
by Olaf van der Spek
Refactor |
72 |
queue= new priority_queue<QuickSelectInterface*, vector<QuickSelectInterface*>, compare_functor>(compare_functor(this)); |
73 |
cur_rowid= alloc.alloc(2 * head->cursor->ref_length); |
|
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
74 |
prev_rowid= cur_rowid + head->cursor->ref_length; |
2318.6.46
by Olaf van der Spek
Refactor |
75 |
return 0; |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
76 |
}
|
77 |
||
78 |
||
1237.13.14
by Padraig O'Sullivan
Corrected some style issues in quick_ror_union_select.[cc,h] and range.cc |
79 |
int optimizer::QuickRorUnionSelect::reset() |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
80 |
{
|
81 |
have_prev_rowid= false; |
|
2385.3.7
by Olaf van der Spek
Refactor DYNAMIC_ARRAY |
82 |
if (not scans_inited) |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
83 |
{
|
2318.6.64
by Olaf van der Spek
Refactor |
84 |
BOOST_FOREACH(QuickSelectInterface* it, quick_selects) |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
85 |
{
|
2318.6.64
by Olaf van der Spek
Refactor |
86 |
if (it->init_ror_merged_scan(false)) |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
87 |
{
|
88 |
return 0; |
|
89 |
}
|
|
90 |
}
|
|
91 |
scans_inited= true; |
|
92 |
}
|
|
2385.3.7
by Olaf van der Spek
Refactor DYNAMIC_ARRAY |
93 |
while (not queue->empty()) |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
94 |
{
|
95 |
queue->pop(); |
|
96 |
}
|
|
97 |
/*
|
|
98 |
Initialize scans for merged quick selects and put all merged quick
|
|
99 |
selects into the queue.
|
|
100 |
*/
|
|
2318.6.64
by Olaf van der Spek
Refactor |
101 |
BOOST_FOREACH(QuickSelectInterface* it, quick_selects) |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
102 |
{
|
2318.6.64
by Olaf van der Spek
Refactor |
103 |
if (it->reset()) |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
104 |
return 0; |
2318.6.64
by Olaf van der Spek
Refactor |
105 |
if (it->get_next() == HA_ERR_END_OF_FILE) |
106 |
continue; |
|
107 |
it->save_last_pos(); |
|
108 |
queue->push(it); |
|
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
109 |
}
|
1491.1.10
by Jay Pipes
ha_rnd_init -> startTableScan, rnd_init -> doStartTableScan, ha_rnd_end -> endTableScan, rnd_end -> doEndTableScan |
110 |
if (head->cursor->startTableScan(1)) |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
111 |
return 0; |
112 |
return 0; |
|
113 |
}
|
|
114 |
||
115 |
||
2318.6.52
by Olaf van der Spek
Refactor |
116 |
void optimizer::QuickRorUnionSelect::push_quick_back(QuickSelectInterface *quick_sel_range) |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
117 |
{
|
1237.13.15
by Padraig O'Sullivan
Used std::vector instead of List in the QuickRorUnionSelect class. |
118 |
quick_selects.push_back(quick_sel_range); |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
119 |
}
|
120 |
||
121 |
||
1237.13.14
by Padraig O'Sullivan
Corrected some style issues in quick_ror_union_select.[cc,h] and range.cc |
122 |
optimizer::QuickRorUnionSelect::~QuickRorUnionSelect() |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
123 |
{
|
124 |
while (! queue->empty()) |
|
125 |
{
|
|
126 |
queue->pop(); |
|
127 |
}
|
|
128 |
delete queue; |
|
1237.13.15
by Padraig O'Sullivan
Used std::vector instead of List in the QuickRorUnionSelect class. |
129 |
for_each(quick_selects.begin(), |
130 |
quick_selects.end(), |
|
131 |
DeletePtr()); |
|
132 |
quick_selects.clear(); |
|
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
133 |
if (head->cursor->inited != Cursor::NONE) |
134 |
{
|
|
1491.1.10
by Jay Pipes
ha_rnd_init -> startTableScan, rnd_init -> doStartTableScan, ha_rnd_end -> endTableScan, rnd_end -> doEndTableScan |
135 |
head->cursor->endTableScan(); |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
136 |
}
|
1487
by Brian Aker
More updates for memory::Root |
137 |
alloc.free_root(MYF(0)); |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
138 |
}
|
139 |
||
140 |
||
1802.16.6
by Padraig O'Sullivan
Added temporary conversion of a bitmap to dynamic_bitset in order to remove references to MyBitmap within optimizer code. |
141 |
bool optimizer::QuickRorUnionSelect::is_keys_used(const boost::dynamic_bitset<>& fields) |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
142 |
{
|
2318.6.64
by Olaf van der Spek
Refactor |
143 |
BOOST_FOREACH(QuickSelectInterface* it, quick_selects) |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
144 |
{
|
2318.6.64
by Olaf van der Spek
Refactor |
145 |
if (it->is_keys_used(fields)) |
1237.13.15
by Padraig O'Sullivan
Used std::vector instead of List in the QuickRorUnionSelect class. |
146 |
return true; |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
147 |
}
|
1237.13.15
by Padraig O'Sullivan
Used std::vector instead of List in the QuickRorUnionSelect class. |
148 |
return false; |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
149 |
}
|
150 |
||
151 |
||
1237.13.14
by Padraig O'Sullivan
Corrected some style issues in quick_ror_union_select.[cc,h] and range.cc |
152 |
int optimizer::QuickRorUnionSelect::get_next() |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
153 |
{
|
1237.13.14
by Padraig O'Sullivan
Corrected some style issues in quick_ror_union_select.[cc,h] and range.cc |
154 |
int error; |
155 |
int dup_row; |
|
156 |
optimizer::QuickSelectInterface *quick= NULL; |
|
157 |
unsigned char *tmp= NULL; |
|
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
158 |
|
159 |
do
|
|
160 |
{
|
|
161 |
do
|
|
162 |
{
|
|
163 |
if (queue->empty()) |
|
1237.13.14
by Padraig O'Sullivan
Corrected some style issues in quick_ror_union_select.[cc,h] and range.cc |
164 |
return HA_ERR_END_OF_FILE; |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
165 |
/* Ok, we have a queue with >= 1 scans */
|
166 |
||
167 |
quick= queue->top(); |
|
168 |
memcpy(cur_rowid, quick->last_rowid, rowid_length); |
|
169 |
||
170 |
/* put into queue rowid from the same stream as top element */
|
|
171 |
if ((error= quick->get_next())) |
|
172 |
{
|
|
173 |
if (error != HA_ERR_END_OF_FILE) |
|
174 |
return(error); |
|
175 |
queue->pop(); |
|
176 |
}
|
|
177 |
else
|
|
178 |
{
|
|
179 |
quick->save_last_pos(); |
|
180 |
queue->pop(); |
|
181 |
queue->push(quick); |
|
182 |
}
|
|
183 |
||
184 |
if (!have_prev_rowid) |
|
185 |
{
|
|
186 |
/* No rows have been returned yet */
|
|
187 |
dup_row= false; |
|
188 |
have_prev_rowid= true; |
|
189 |
}
|
|
190 |
else
|
|
1237.13.14
by Padraig O'Sullivan
Corrected some style issues in quick_ror_union_select.[cc,h] and range.cc |
191 |
dup_row= ! head->cursor->cmp_ref(cur_rowid, prev_rowid); |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
192 |
} while (dup_row); |
193 |
||
194 |
tmp= cur_rowid; |
|
195 |
cur_rowid= prev_rowid; |
|
196 |
prev_rowid= tmp; |
|
197 |
||
198 |
error= head->cursor->rnd_pos(quick->record, prev_rowid); |
|
199 |
} while (error == HA_ERR_RECORD_DELETED); |
|
1237.13.14
by Padraig O'Sullivan
Corrected some style issues in quick_ror_union_select.[cc,h] and range.cc |
200 |
return error; |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
201 |
}
|
202 |
||
203 |
||
2170.4.5
by Stewart Smith
convert explain_plan extra String to std::string. This means that add_info_string() also gets converted to std::string |
204 |
void optimizer::QuickRorUnionSelect::add_info_string(string *str) |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
205 |
{
|
206 |
bool first= true; |
|
2170.4.5
by Stewart Smith
convert explain_plan extra String to std::string. This means that add_info_string() also gets converted to std::string |
207 |
str->append("union("); |
2318.6.64
by Olaf van der Spek
Refactor |
208 |
BOOST_FOREACH(QuickSelectInterface* it, quick_selects) |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
209 |
{
|
2318.6.64
by Olaf van der Spek
Refactor |
210 |
if (first) |
211 |
first= false; |
|
212 |
else
|
|
2170.4.5
by Stewart Smith
convert explain_plan extra String to std::string. This means that add_info_string() also gets converted to std::string |
213 |
str->append(","); |
2318.6.64
by Olaf van der Spek
Refactor |
214 |
it->add_info_string(str); |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
215 |
}
|
2170.4.5
by Stewart Smith
convert explain_plan extra String to std::string. This means that add_info_string() also gets converted to std::string |
216 |
str->append(")"); |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
217 |
}
|
218 |
||
219 |
||
2318.6.64
by Olaf van der Spek
Refactor |
220 |
void optimizer::QuickRorUnionSelect::add_keys_and_lengths(string *key_names, string *used_lengths) |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
221 |
{
|
222 |
bool first= true; |
|
2318.6.64
by Olaf van der Spek
Refactor |
223 |
BOOST_FOREACH(QuickSelectInterface* it, quick_selects) |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
224 |
{
|
225 |
if (first) |
|
226 |
first= false; |
|
227 |
else
|
|
228 |
{
|
|
2170.4.4
by Stewart Smith
tmp3 String to std::string in explain_plan (and used_lengths parameter to add_keys_and_lengths |
229 |
used_lengths->append(","); |
2170.4.3
by Stewart Smith
convert tmp2 in explain_plan to std::string instead of char[] buf and String, consequently also convert add_keys_and_length to deal with std::string for key_names parameter |
230 |
key_names->append(","); |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
231 |
}
|
2318.6.64
by Olaf van der Spek
Refactor |
232 |
it->add_keys_and_lengths(key_names, used_lengths); |
1237.13.13
by Padraig O'Sullivan
Moved the QUICK_ROR_UNION_SELECT class into its own header and implementation files. |
233 |
}
|
234 |
}
|
|
235 |
||
1280.1.10
by Monty Taylor
Put everything in drizzled into drizzled namespace. |
236 |
} /* namespace drizzled */ |