1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
|
<?php
declare(strict_types=1);
namespace PhpMyAdmin\Query;
use PhpMyAdmin\DatabaseInterface;
use PhpMyAdmin\Util;
use function in_array;
use function is_string;
use function strlen;
use function strpos;
use function strtoupper;
use function substr;
/**
* Handles data compatibility from SQL query results
*/
class Compatibility
{
public static function getISCompatForGetTablesFull(array $eachTables, string $eachDatabase): array
{
foreach ($eachTables as $table_name => $_) {
if (! isset($eachTables[$table_name]['Type']) && isset($eachTables[$table_name]['Engine'])) {
// pma BC, same parts of PMA still uses 'Type'
$eachTables[$table_name]['Type'] =& $eachTables[$table_name]['Engine'];
} elseif (! isset($eachTables[$table_name]['Engine']) && isset($eachTables[$table_name]['Type'])) {
// old MySQL reports Type, newer MySQL reports Engine
$eachTables[$table_name]['Engine'] =& $eachTables[$table_name]['Type'];
}
// Compatibility with INFORMATION_SCHEMA output
$eachTables[$table_name]['TABLE_SCHEMA'] = $eachDatabase;
$eachTables[$table_name]['TABLE_NAME'] =& $eachTables[$table_name]['Name'];
$eachTables[$table_name]['ENGINE'] =& $eachTables[$table_name]['Engine'];
$eachTables[$table_name]['VERSION'] =& $eachTables[$table_name]['Version'];
$eachTables[$table_name]['ROW_FORMAT'] =& $eachTables[$table_name]['Row_format'];
$eachTables[$table_name]['TABLE_ROWS'] =& $eachTables[$table_name]['Rows'];
$eachTables[$table_name]['AVG_ROW_LENGTH'] =& $eachTables[$table_name]['Avg_row_length'];
$eachTables[$table_name]['DATA_LENGTH'] =& $eachTables[$table_name]['Data_length'];
$eachTables[$table_name]['MAX_DATA_LENGTH'] =& $eachTables[$table_name]['Max_data_length'];
$eachTables[$table_name]['INDEX_LENGTH'] =& $eachTables[$table_name]['Index_length'];
$eachTables[$table_name]['DATA_FREE'] =& $eachTables[$table_name]['Data_free'];
$eachTables[$table_name]['AUTO_INCREMENT'] =& $eachTables[$table_name]['Auto_increment'];
$eachTables[$table_name]['CREATE_TIME'] =& $eachTables[$table_name]['Create_time'];
$eachTables[$table_name]['UPDATE_TIME'] =& $eachTables[$table_name]['Update_time'];
$eachTables[$table_name]['CHECK_TIME'] =& $eachTables[$table_name]['Check_time'];
$eachTables[$table_name]['TABLE_COLLATION'] =& $eachTables[$table_name]['Collation'];
$eachTables[$table_name]['CHECKSUM'] =& $eachTables[$table_name]['Checksum'];
$eachTables[$table_name]['CREATE_OPTIONS'] =& $eachTables[$table_name]['Create_options'];
$eachTables[$table_name]['TABLE_COMMENT'] =& $eachTables[$table_name]['Comment'];
if (
strtoupper($eachTables[$table_name]['Comment'] ?? '') === 'VIEW'
&& $eachTables[$table_name]['Engine'] == null
) {
$eachTables[$table_name]['TABLE_TYPE'] = 'VIEW';
} elseif ($eachDatabase === 'information_schema') {
$eachTables[$table_name]['TABLE_TYPE'] = 'SYSTEM VIEW';
} else {
/**
* @todo difference between 'TEMPORARY' and 'BASE TABLE'
* but how to detect?
*/
$eachTables[$table_name]['TABLE_TYPE'] = 'BASE TABLE';
}
}
return $eachTables;
}
public static function getISCompatForGetColumnsFull(array $columns, string $database, string $table): array
{
$ordinal_position = 1;
foreach ($columns as $column_name => $_) {
// Compatibility with INFORMATION_SCHEMA output
$columns[$column_name]['COLUMN_NAME'] =& $columns[$column_name]['Field'];
$columns[$column_name]['COLUMN_TYPE'] =& $columns[$column_name]['Type'];
$columns[$column_name]['COLLATION_NAME'] =& $columns[$column_name]['Collation'];
$columns[$column_name]['IS_NULLABLE'] =& $columns[$column_name]['Null'];
$columns[$column_name]['COLUMN_KEY'] =& $columns[$column_name]['Key'];
$columns[$column_name]['COLUMN_DEFAULT'] =& $columns[$column_name]['Default'];
$columns[$column_name]['EXTRA'] =& $columns[$column_name]['Extra'];
$columns[$column_name]['PRIVILEGES'] =& $columns[$column_name]['Privileges'];
$columns[$column_name]['COLUMN_COMMENT'] =& $columns[$column_name]['Comment'];
$columns[$column_name]['TABLE_CATALOG'] = null;
$columns[$column_name]['TABLE_SCHEMA'] = $database;
$columns[$column_name]['TABLE_NAME'] = $table;
$columns[$column_name]['ORDINAL_POSITION'] = $ordinal_position;
$colType = $columns[$column_name]['COLUMN_TYPE'];
$colType = is_string($colType) ? $colType : '';
$colTypePosComa = strpos($colType, '(');
$colTypePosComa = $colTypePosComa !== false ? $colTypePosComa : strlen($colType);
$columns[$column_name]['DATA_TYPE'] = substr($colType, 0, $colTypePosComa);
/**
* @todo guess CHARACTER_MAXIMUM_LENGTH from COLUMN_TYPE
*/
$columns[$column_name]['CHARACTER_MAXIMUM_LENGTH'] = null;
/**
* @todo guess CHARACTER_OCTET_LENGTH from CHARACTER_MAXIMUM_LENGTH
*/
$columns[$column_name]['CHARACTER_OCTET_LENGTH'] = null;
$columns[$column_name]['NUMERIC_PRECISION'] = null;
$columns[$column_name]['NUMERIC_SCALE'] = null;
$colCollation = $columns[$column_name]['COLLATION_NAME'];
$colCollation = is_string($colCollation) ? $colCollation : '';
$colCollationPosUnderscore = strpos($colCollation, '_');
$colCollationPosUnderscore = $colCollationPosUnderscore !== false
? $colCollationPosUnderscore
: strlen($colCollation);
$columns[$column_name]['CHARACTER_SET_NAME'] = substr($colCollation, 0, $colCollationPosUnderscore);
$ordinal_position++;
}
return $columns;
}
public static function isMySqlOrPerconaDb(): bool
{
$serverType = Util::getServerType();
return $serverType === 'MySQL' || $serverType === 'Percona Server';
}
public static function isMariaDb(): bool
{
$serverType = Util::getServerType();
return $serverType === 'MariaDB';
}
public static function isCompatibleRenameIndex(int $serverVersion): bool
{
if (self::isMySqlOrPerconaDb()) {
return $serverVersion >= 50700;
}
// @see https://mariadb.com/kb/en/alter-table/#rename-indexkey
if (self::isMariaDb()) {
return $serverVersion >= 100502;
}
return false;
}
public static function isIntegersLengthRestricted(DatabaseInterface $dbi): bool
{
// MySQL made restrictions on the integer types' length from versions >= 8.0.18
// See: https://dev.mysql.com/doc/relnotes/mysql/8.0/en/news-8-0-19.html
$serverType = Util::getServerType();
$serverVersion = $dbi->getVersion();
return $serverType === 'MySQL' && $serverVersion >= 80018;
}
public static function supportsReferencesPrivilege(DatabaseInterface $dbi): bool
{
// See: https://mariadb.com/kb/en/grant/#table-privileges
// Unused
if ($dbi->isMariaDB()) {
return false;
}
// https://dev.mysql.com/doc/refman/5.6/en/privileges-provided.html#priv_references
// This privilege is unused before MySQL 5.6.22.
// As of 5.6.22, creation of a foreign key constraint
// requires at least one of the SELECT, INSERT, UPDATE, DELETE,
// or REFERENCES privileges for the parent table.
return $dbi->getVersion() >= 50622;
}
public static function isIntegersSupportLength(string $type, string $length, DatabaseInterface $dbi): bool
{
// MySQL Removed the Integer types' length from versions >= 8.0.18
// except TINYINT(1).
// See: https://dev.mysql.com/doc/relnotes/mysql/8.0/en/news-8-0-19.html
$integerTypes = ['SMALLINT', 'MEDIUMINT', 'INT', 'BIGINT'];
$typeLengthNotAllowed = in_array($type, $integerTypes) || $type === 'TINYINT' && $length !== '1';
return ! (self::isIntegersLengthRestricted($dbi) && $typeLengthNotAllowed);
}
/**
* Returns whether the database server supports virtual columns
*/
public static function isVirtualColumnsSupported(int $serverVersion): bool
{
if (self::isMySqlOrPerconaDb()) {
return $serverVersion >= 50705;
}
// @see https://daniel-bartholomew.com/2010/09/30/road-to-mariadb-5-2-virtual-columns/
if (self::isMariaDb()) {
return $serverVersion >= 50200;
}
return false;
}
/**
* Returns whether the database server supports virtual columns
*/
public static function supportsStoredKeywordForVirtualColumns(int $serverVersion): bool
{
// @see https://mariadb.com/kb/en/generated-columns/#mysql-compatibility-support
if (self::isMariaDb()) {
return $serverVersion >= 100201;
}
return false;
}
/**
* @see https://dev.mysql.com/doc/relnotes/mysql/5.7/en/news-5-7-6.html#mysqld-5-7-6-account-management
* @see https://mariadb.com/kb/en/mariadb-1042-release-notes/#notable-changes
*
* @psalm-pure
*/
public static function hasAccountLocking(bool $isMariaDb, int $version): bool
{
return $isMariaDb && $version >= 100402 || ! $isMariaDb && $version >= 50706;
}
}
|
