MySQL 8.0.29
Source Code Documentation
sql_admin.h
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22
23#ifndef SQL_TABLE_MAINTENANCE_H
24#define SQL_TABLE_MAINTENANCE_H
25
26#include <assert.h>
27#include <stddef.h>
28#include <set>
29
30#include "lex_string.h"
31
32#include "my_sqlcommand.h"
35#include "sql/sql_cmd.h" // Sql_cmd
36#include "sql/sql_cmd_ddl_table.h" // Sql_cmd_ddl_table
37#include "sql/sql_plugin_ref.h"
38
39class Clone_handler;
40class String;
41class THD;
42
43struct TABLE_LIST;
44template <class T>
45class List;
46
47struct KEY_CACHE;
48struct LEX_USER;
49
51 bool operator()(const String *lhs, const String *rhs) const;
52};
53
54/* Must be able to hold ALTER TABLE t PARTITION BY ... KEY ALGORITHM = 1 ... */
55#define SQL_ADMIN_MSG_TEXT_SIZE 128 * 1024
56
57/**
58 Sql_cmd_analyze_table represents the ANALYZE TABLE statement.
59
60 Also this class is a base class for Sql_cmd_alter_table_analyze_partition
61 which represents the ALTER TABLE ... ANALYZE PARTITION statement.
62*/
64 public:
65 /**
66 Specifies which (if any) of the commands UPDATE HISTOGRAM or DROP HISTOGRAM
67 that is specified after ANALYZE TABLE tbl.
68 */
69 enum class Histogram_command {
70 NONE, ///< Neither UPDATE or DROP histogram is specified
71 UPDATE_HISTOGRAM, ///< UPDATE HISTOGRAM ... is specified after ANALYZE
72 ///< TABLE
73 DROP_HISTOGRAM ///< DROP HISTOGRAM ... is specified after ANALYZE TABLE
74 };
75
76 /**
77 Constructor, used to represent a ANALYZE TABLE statement.
78 */
79 Sql_cmd_analyze_table(THD *thd, Alter_info *alter_info,
80 Histogram_command histogram_command,
81 int histogram_buckets);
82
83 bool execute(THD *thd) override;
84
86
87 /**
88 Set which fields to (try and) create/update or delete histogram statistics
89 for.
90 */
92
93 private:
95 std::set<String *, Column_name_comparator, Mem_root_allocator<String *>>;
96
97 /// Which histogram command (if any) is specified
99
100 /// The fields specified by the user in UPDATE/DROP HISTOGRAM
102
103 /// The number of buckets specified by the user in UPDATE HISTOGRAM
105
106 /// @return The histogram command specified, if any.
108 return m_histogram_command;
109 }
110
111 /// @return The number of buckets specified in UPDATE HISTOGRAM.
113
114 /// @return The fields specified in UPDATE/DROP HISTOGRAM
116
117 /**
118 Send the result of histogram operations back to the client as a result set.
119
120 @param thd Thread handle.
121 @param results The messages to send back to the client.
122 @param table The table the operations was performed on.
123
124 @return false on success, true otherwise.
125 */
126 bool send_histogram_results(THD *thd, const histograms::results_map &results,
127 const TABLE_LIST *table);
128
129 /**
130 Update one or more histograms
131
132 This is invoked by running the command "ANALYZE TABLE tbl UPDATE HISTOGRAM
133 ON col1, col2 WITH n BUCKETS". Note that the function expects exactly one
134 table to be specified, but multiple columns can be specified.
135
136 @param thd Thread handler.
137 @param table The table specified in ANALYZE TABLE
138 @param results A map where the results of the operations will be stored.
139
140 @return false on success, true on error.
141 */
142 bool update_histogram(THD *thd, TABLE_LIST *table,
143 histograms::results_map &results);
144
145 /**
146 Drops one or more histograms
147
148 This is invoked by running the command "ANALYZE TABLE tbl DROP HISTOGRAM ON
149 col1, col2;". Note that the function expects exactly one table to be
150 specified, but multiple columns can be specified.
151
152 @param thd Thread handler.
153 @param table The table specified in ANALYZE TABLE
154 @param results A map where the results of the operations will be stored.
155
156 @return false on success, true on error.
157 */
158 bool drop_histogram(THD *thd, TABLE_LIST *table,
159 histograms::results_map &results);
160
161 bool handle_histogram_command(THD *thd, TABLE_LIST *table);
162};
163
164/**
165 Sql_cmd_check_table represents the CHECK TABLE statement.
166
167 Also this is a base class of Sql_cmd_alter_table_check_partition which
168 represents the ALTER TABLE ... CHECK PARTITION statement.
169*/
171 public:
173
174 bool execute(THD *thd) override;
175
176 enum_sql_command sql_command_code() const override { return SQLCOM_CHECK; }
177};
178
179/**
180 Sql_cmd_optimize_table represents the OPTIMIZE TABLE statement.
181
182 Also this is a base class of Sql_cmd_alter_table_optimize_partition.
183 represents the ALTER TABLE ... CHECK PARTITION statement.
184*/
186 public:
188
189 bool execute(THD *thd) override;
190
192};
193
194/**
195 Sql_cmd_repair_table represents the REPAIR TABLE statement.
196
197 Also this is a base class of Sql_cmd_alter_table_repair_partition which
198 represents the ALTER TABLE ... REPAIR PARTITION statement.
199*/
201 public:
203
204 bool execute(THD *thd) override;
205
207};
208
209/**
210 Sql_cmd_shutdown represents the SHUTDOWN statement.
211*/
212class Sql_cmd_shutdown : public Sql_cmd {
213 public:
214 bool execute(THD *thd) override;
216};
217
219
220/**
221 Sql_cmd_set_role represetns the SET ROLE ... statement.
222*/
223class Sql_cmd_set_role : public Sql_cmd {
224 friend class PT_set_role;
225
229
230 public:
232 const List<LEX_USER> *except_roles_arg)
233 : role_type(role_type_arg),
235 except_roles(except_roles_arg) {
239 assert(role_type == role_enum::ROLE_ALL || except_roles == nullptr);
240 }
241 explicit Sql_cmd_set_role(const List<LEX_USER> *role_arg)
242 : role_type(role_enum::ROLE_NAME), role_list(role_arg) {}
243
244 bool execute(THD *thd) override;
246};
247
248/**
249 Sql_cmd_create_role represetns the CREATE ROLE ... statement.
250*/
252 friend class PT_create_role;
253
254 const bool if_not_exists;
256
257 public:
258 explicit Sql_cmd_create_role(bool if_not_exists_arg,
259 const List<LEX_USER> *roles_arg)
260 : if_not_exists(if_not_exists_arg), roles(roles_arg) {}
261
262 bool execute(THD *thd) override;
264 return SQLCOM_CREATE_ROLE;
265 }
266};
267
268/**
269 Sql_cmd_drop_role represetns the DROP ROLE ... statement.
270*/
272 friend class PT_drop_role;
273
276
277 public:
278 explicit Sql_cmd_drop_role(bool ignore_errors_arg,
279 const List<LEX_USER> *roles_arg)
280 : ignore_errors(ignore_errors_arg), roles(roles_arg) {}
281
282 bool execute(THD *thd) override;
284 return SQLCOM_DROP_ROLE;
285 }
286};
287
288/**
289 Sql_cmd_grant_roles represents the GRANT role-list TO ... statement.
290*/
295
296 public:
297 explicit Sql_cmd_grant_roles(const List<LEX_USER> *roles_arg,
298 const List<LEX_USER> *users_arg,
299 bool with_admin_option_arg)
300 : roles(roles_arg),
301 users(users_arg),
302 with_admin_option(with_admin_option_arg) {}
303
304 bool execute(THD *thd) override;
306 return SQLCOM_GRANT_ROLE;
307 }
308};
309
310/**
311 Sql_cmd_revoke_roles represents the REVOKE [role list] TO ... statement.
312*/
316
317 public:
318 explicit Sql_cmd_revoke_roles(const List<LEX_USER> *roles_arg,
319 const List<LEX_USER> *users_arg)
320 : roles(roles_arg), users(users_arg) {}
321
322 bool execute(THD *thd) override;
324 return SQLCOM_REVOKE_ROLE;
325 }
326};
327
328/**
329 Sql_cmd_alter_user_default_role ALTER USER ... DEFAULT ROLE ... statement.
330*/
333
334 const bool if_exists;
338
339 public:
340 explicit Sql_cmd_alter_user_default_role(bool if_exists_arg,
341 const List<LEX_USER> *users_arg,
342 const List<LEX_USER> *roles_arg,
343 const role_enum role_type_arg)
344 : if_exists(if_exists_arg),
345 users(users_arg),
346 roles(roles_arg),
347 role_type(role_type_arg) {}
348
349 bool execute(THD *thd) override;
352 }
353};
354
363 LAST_ACTION /* Add new master key type before this */
365
366/**
367 Sql_cmd_alter_instance represents the ROTATE alter_instance_action MASTER KEY
368 statement.
369*/
370class Alter_instance;
371
373 friend class PT_alter_instance;
377
378 public:
380 enum alter_instance_action_enum alter_instance_action_arg,
381 const LEX_CSTRING &channel_name)
382 : alter_instance_action(alter_instance_action_arg),
383 channel_name_(channel_name),
385
386 bool execute(THD *thd) override;
389 }
390};
391
392/**
393 Sql_cmd_clone implements CLONE ... statement.
394*/
395
396class Sql_cmd_clone : public Sql_cmd {
397 public:
398 /** Construct clone command for clone server */
399 explicit Sql_cmd_clone()
400 : m_host(),
401 m_port(),
402 m_user(),
403 m_passwd(),
404 m_data_dir(),
405 m_clone(),
406 m_is_local(false) {}
407
408 /** Construct clone command for clone client
409 @param[in] user_info user, password and remote host information
410 @param[in] port port for remote server
411 @param[in] data_dir data directory to clone */
412 explicit Sql_cmd_clone(LEX_USER *user_info, ulong port, LEX_CSTRING data_dir);
413
414 /** Construct clone command for local clone
415 @param[in] data_dir data directory to clone */
416 explicit Sql_cmd_clone(LEX_CSTRING data_dir)
417 : m_host(),
418 m_port(),
419 m_user(),
420 m_passwd(),
421 m_data_dir(data_dir),
422 m_clone(),
423 m_is_local(true) {}
424
425 enum_sql_command sql_command_code() const override { return SQLCOM_CLONE; }
426
427 bool execute(THD *thd) override;
428
429 /** Execute clone server.
430 @param[in] thd server session
431 @return true, if error */
432 bool execute_server(THD *thd);
433
434 /** Load clone plugin for clone server.
435 @param[in] thd server session
436 @return true, if error */
437 bool load(THD *thd);
438
439 /** Re-write clone statement to hide password.
440 @param[in,out] thd server session
441 @param[in,out] rlb the buffer to return the rewritten query in. empty if none.
442 @return true iff query is re-written */
443 bool rewrite(THD *thd, String &rlb);
444
445 /** @return true, if it is local clone command */
446 bool is_local() const { return (m_is_local); }
447
448 private:
449 /** Remote server IP */
451
452 /** Remote server port */
453 const ulong m_port;
454
455 /** User name for remote connection */
457
458 /** Password for remote connection */
460
461 /** Data directory for cloned data */
463
464 /** Clone handle in server */
466
467 /** Loaded clone plugin reference */
469
470 /** If it is local clone operation */
472};
473#endif
Data describing the table being created by CREATE TABLE or altered by ALTER TABLE.
Definition: sql_alter.h:204
Definition: sql_alter_instance.h:32
Clone plugin handler to convenient way to.
Definition: clone_handler.h:53
Definition: sql_list.h:433
Top-level node for the ALTER INSTANCE statement.
Definition: parse_tree_nodes.h:1995
Definition: parse_tree_nodes.h:2986
Definition: parse_tree_nodes.h:2842
Definition: parse_tree_nodes.h:2852
Definition: parse_tree_nodes.h:2862
Definition: sql_admin.h:372
enum alter_instance_action_enum alter_instance_action
Definition: sql_admin.h:374
bool execute(THD *thd) override
Execute this SQL statement.
Definition: sql_admin.cc:1759
LEX_CSTRING channel_name_
Definition: sql_admin.h:375
Sql_cmd_alter_instance(enum alter_instance_action_enum alter_instance_action_arg, const LEX_CSTRING &channel_name)
Definition: sql_admin.h:379
Alter_instance * alter_instance
Definition: sql_admin.h:376
enum_sql_command sql_command_code() const override
Return the command code for this statement.
Definition: sql_admin.h:387
Sql_cmd_alter_user_default_role ALTER USER ... DEFAULT ROLE ... statement.
Definition: sql_admin.h:331
Sql_cmd_alter_user_default_role(bool if_exists_arg, const List< LEX_USER > *users_arg, const List< LEX_USER > *roles_arg, const role_enum role_type_arg)
Definition: sql_admin.h:340
enum_sql_command sql_command_code() const override
Return the command code for this statement.
Definition: sql_admin.h:350
const bool if_exists
Definition: sql_admin.h:334
bool execute(THD *thd) override
Execute this SQL statement.
Definition: sql_admin.cc:2164
const List< LEX_USER > * roles
Definition: sql_admin.h:336
const role_enum role_type
Definition: sql_admin.h:337
const List< LEX_USER > * users
Definition: sql_admin.h:335
Sql_cmd_analyze_table represents the ANALYZE TABLE statement.
Definition: sql_admin.h:63
bool drop_histogram(THD *thd, TABLE_LIST *table, histograms::results_map &results)
Drops one or more histograms.
Definition: sql_admin.cc:301
enum_sql_command sql_command_code() const override
Return the command code for this statement.
Definition: sql_admin.h:85
bool send_histogram_results(THD *thd, const histograms::results_map &results, const TABLE_LIST *table)
Send the result of histogram operations back to the client as a result set.
Definition: sql_admin.cc:347
Histogram_command
Specifies which (if any) of the commands UPDATE HISTOGRAM or DROP HISTOGRAM that is specified after A...
Definition: sql_admin.h:69
@ DROP_HISTOGRAM
DROP HISTOGRAM ... is specified after ANALYZE TABLE.
@ NONE
Neither UPDATE or DROP histogram is specified.
@ UPDATE_HISTOGRAM
UPDATE HISTOGRAM ... is specified after ANALYZE TABLE.
Histogram_command m_histogram_command
Which histogram command (if any) is specified.
Definition: sql_admin.h:98
Histogram_command get_histogram_command() const
Definition: sql_admin.h:107
int get_histogram_buckets() const
Definition: sql_admin.h:112
columns_set m_histogram_fields
The fields specified by the user in UPDATE/DROP HISTOGRAM.
Definition: sql_admin.h:101
const columns_set & get_histogram_fields() const
Definition: sql_admin.h:115
bool handle_histogram_command(THD *thd, TABLE_LIST *table)
Definition: sql_admin.cc:1465
std::set< String *, Column_name_comparator, Mem_root_allocator< String * > > columns_set
Definition: sql_admin.h:95
Sql_cmd_analyze_table(THD *thd, Alter_info *alter_info, Histogram_command histogram_command, int histogram_buckets)
Constructor, used to represent a ANALYZE TABLE statement.
Definition: sql_admin.cc:292
int m_histogram_buckets
The number of buckets specified by the user in UPDATE HISTOGRAM.
Definition: sql_admin.h:104
bool execute(THD *thd) override
Execute this SQL statement.
Definition: sql_admin.cc:1556
bool set_histogram_fields(List< String > *fields)
Set which fields to (try and) create/update or delete histogram statistics for.
Definition: sql_admin.cc:1450
bool update_histogram(THD *thd, TABLE_LIST *table, histograms::results_map &results)
Update one or more histograms.
Definition: sql_admin.cc:462
Sql_cmd_check_table represents the CHECK TABLE statement.
Definition: sql_admin.h:170
enum_sql_command sql_command_code() const override
Return the command code for this statement.
Definition: sql_admin.h:176
bool execute(THD *thd) override
Execute this SQL statement.
Definition: sql_admin.cc:1595
Sql_cmd_clone implements CLONE ... statement.
Definition: sql_admin.h:396
bool execute_server(THD *thd)
Execute clone server.
Definition: sql_admin.cc:1956
bool is_local() const
Definition: sql_admin.h:446
Sql_cmd_clone(LEX_CSTRING data_dir)
Construct clone command for local clone.
Definition: sql_admin.h:416
LEX_CSTRING m_data_dir
Data directory for cloned data.
Definition: sql_admin.h:462
Sql_cmd_clone()
Construct clone command for clone server.
Definition: sql_admin.h:399
bool load(THD *thd)
Load clone plugin for clone server.
Definition: sql_admin.cc:1933
bool execute(THD *thd) override
Execute this SQL statement.
Definition: sql_admin.cc:1815
bool rewrite(THD *thd, String &rlb)
Re-write clone statement to hide password.
Definition: sql_admin.cc:1994
Clone_handler * m_clone
Clone handle in server.
Definition: sql_admin.h:465
LEX_CSTRING m_passwd
Password for remote connection.
Definition: sql_admin.h:459
enum_sql_command sql_command_code() const override
Return the command code for this statement.
Definition: sql_admin.h:425
LEX_CSTRING m_host
Remote server IP.
Definition: sql_admin.h:450
plugin_ref m_plugin
Loaded clone plugin reference.
Definition: sql_admin.h:468
bool m_is_local
If it is local clone operation.
Definition: sql_admin.h:471
LEX_CSTRING m_user
User name for remote connection.
Definition: sql_admin.h:456
const ulong m_port
Remote server port.
Definition: sql_admin.h:453
Sql_cmd_create_role represetns the CREATE ROLE ... statement.
Definition: sql_admin.h:251
const List< LEX_USER > * roles
Definition: sql_admin.h:255
const bool if_not_exists
Definition: sql_admin.h:254
enum_sql_command sql_command_code() const override
Return the command code for this statement.
Definition: sql_admin.h:263
bool execute(THD *thd) override
Execute this SQL statement.
Definition: sql_admin.cc:2037
Sql_cmd_create_role(bool if_not_exists_arg, const List< LEX_USER > *roles_arg)
Definition: sql_admin.h:258
A base class for CREATE/ALTER TABLE commands and friends.
Definition: sql_cmd_ddl_table.h:49
Sql_cmd_ddl_table(Alter_info *alter_info)
Definition: sql_cmd_ddl_table.cc:67
Sql_cmd_drop_role represetns the DROP ROLE ... statement.
Definition: sql_admin.h:271
const List< LEX_USER > * roles
Definition: sql_admin.h:275
bool execute(THD *thd) override
Execute this SQL statement.
Definition: sql_admin.cc:2087
enum_sql_command sql_command_code() const override
Return the command code for this statement.
Definition: sql_admin.h:283
bool ignore_errors
Definition: sql_admin.h:274
Sql_cmd_drop_role(bool ignore_errors_arg, const List< LEX_USER > *roles_arg)
Definition: sql_admin.h:278
Sql_cmd_grant_roles represents the GRANT role-list TO ... statement.
Definition: sql_admin.h:291
Sql_cmd_grant_roles(const List< LEX_USER > *roles_arg, const List< LEX_USER > *users_arg, bool with_admin_option_arg)
Definition: sql_admin.h:297
const List< LEX_USER > * users
Definition: sql_admin.h:293
const List< LEX_USER > * roles
Definition: sql_admin.h:292
enum_sql_command sql_command_code() const override
Return the command code for this statement.
Definition: sql_admin.h:305
bool execute(THD *thd) override
Execute this SQL statement.
Definition: sql_admin.cc:2144
const bool with_admin_option
Definition: sql_admin.h:294
Sql_cmd_optimize_table represents the OPTIMIZE TABLE statement.
Definition: sql_admin.h:185
enum_sql_command sql_command_code() const override
Return the command code for this statement.
Definition: sql_admin.h:191
bool execute(THD *thd) override
Execute this SQL statement.
Definition: sql_admin.cc:1616
Sql_cmd_repair_table represents the REPAIR TABLE statement.
Definition: sql_admin.h:200
bool execute(THD *thd) override
Execute this SQL statement.
Definition: sql_admin.cc:1644
enum_sql_command sql_command_code() const override
Return the command code for this statement.
Definition: sql_admin.h:206
Sql_cmd_revoke_roles represents the REVOKE [role list] TO ... statement.
Definition: sql_admin.h:313
Sql_cmd_revoke_roles(const List< LEX_USER > *roles_arg, const List< LEX_USER > *users_arg)
Definition: sql_admin.h:318
const List< LEX_USER > * users
Definition: sql_admin.h:315
const List< LEX_USER > * roles
Definition: sql_admin.h:314
enum_sql_command sql_command_code() const override
Return the command code for this statement.
Definition: sql_admin.h:323
bool execute(THD *thd) override
Execute this SQL statement.
Definition: sql_admin.cc:2154
Sql_cmd_set_role represetns the SET ROLE ... statement.
Definition: sql_admin.h:223
Sql_cmd_set_role(role_enum role_type_arg, const List< LEX_USER > *except_roles_arg)
Definition: sql_admin.h:231
const role_enum role_type
Definition: sql_admin.h:226
bool execute(THD *thd) override
Execute this SQL statement.
Definition: sql_admin.cc:2109
Sql_cmd_set_role(const List< LEX_USER > *role_arg)
Definition: sql_admin.h:241
const List< LEX_USER > * except_roles
Definition: sql_admin.h:228
enum_sql_command sql_command_code() const override
Return the command code for this statement.
Definition: sql_admin.h:245
const List< LEX_USER > * role_list
Definition: sql_admin.h:227
Sql_cmd_shutdown represents the SHUTDOWN statement.
Definition: sql_admin.h:212
enum_sql_command sql_command_code() const override
Return the command code for this statement.
Definition: sql_admin.h:215
bool execute(THD *thd) override
Execute this SQL statement.
Definition: sql_admin.cc:1672
Representation of an SQL command.
Definition: sql_cmd.h:64
Using this class is fraught with peril, and you need to be very careful when doing so.
Definition: sql_string.h:166
For each client connection we create a separate thread with THD serving as a thread/connection descri...
Definition: sql_class.h:945
Fido Client Authentication nullptr
Definition: fido_client_plugin.cc:221
Histogram base class.
enum_sql_command
Definition: my_sqlcommand.h:45
@ SQLCOM_CHECK
Definition: my_sqlcommand.h:92
@ SQLCOM_OPTIMIZE
Definition: my_sqlcommand.h:91
@ SQLCOM_ALTER_INSTANCE
Definition: my_sqlcommand.h:185
@ SQLCOM_REVOKE_ROLE
Definition: my_sqlcommand.h:192
@ SQLCOM_REPAIR
Definition: my_sqlcommand.h:85
@ SQLCOM_CREATE_ROLE
Definition: my_sqlcommand.h:188
@ SQLCOM_SHUTDOWN
Definition: my_sqlcommand.h:183
@ SQLCOM_ALTER_USER_DEFAULT_ROLE
Definition: my_sqlcommand.h:193
@ SQLCOM_CLONE
Definition: my_sqlcommand.h:199
@ SQLCOM_SET_ROLE
Definition: my_sqlcommand.h:190
@ SQLCOM_DROP_ROLE
Definition: my_sqlcommand.h:189
@ SQLCOM_GRANT_ROLE
Definition: my_sqlcommand.h:191
@ SQLCOM_ANALYZE
Definition: my_sqlcommand.h:97
struct passwd * user_info
Definition: mysql_ssl_rsa_setup.cc:118
std::map< std::string, Message, std::less< std::string >, Histogram_key_allocator< std::pair< const std::string, Message > > > results_map
Definition: histogram.h:112
required uint64 port
Definition: replication_asynchronous_connection_failover.proto:32
alter_instance_action_enum
Definition: sql_admin.h:355
@ RELOAD_KEYRING
Definition: sql_admin.h:362
@ ALTER_INSTANCE_RELOAD_TLS_ROLLBACK_ON_ERROR
Definition: sql_admin.h:358
@ ROTATE_BINLOG_MASTER_KEY
Definition: sql_admin.h:359
@ ALTER_INSTANCE_DISABLE_INNODB_REDO
Definition: sql_admin.h:361
@ ALTER_INSTANCE_ENABLE_INNODB_REDO
Definition: sql_admin.h:360
@ LAST_ACTION
Definition: sql_admin.h:363
@ ROTATE_INNODB_MASTER_KEY
Definition: sql_admin.h:356
@ ALTER_INSTANCE_RELOAD_TLS
Definition: sql_admin.h:357
role_enum
Definition: sql_admin.h:218
Representation of an SQL command.
Definition: sql_admin.h:50
bool operator()(const String *lhs, const String *rhs) const
Definition: sql_admin.cc:103
Definition: keycache.h:72
Definition: table.h:2551
Definition: mysql_lex_string.h:39
Definition: table.h:2684
Definition: sql_plugin_ref.h:44