diff options
| author | Daniel Black <daniel@mariadb.org> | 2020-08-30 10:53:20 +1000 |
|---|---|---|
| committer | Daniel Black <daniel@mariadb.org> | 2020-11-01 08:04:36 +1100 |
| commit | d6ea03fa94dc008b30932bf1e8ea40c3346f51c8 (patch) | |
| tree | fdc510e900d7b83f86a76ec1c9ac79437b18ee7d | |
| parent | c7902186129cae888c45a87150d33059528a7033 (diff) | |
| download | mariadb-git-d6ea03fa94dc008b30932bf1e8ea40c3346f51c8.tar.gz | |
MDEV-23630: mysqldump logically dump system table information
Add --system={all, users, plugins, udfs, servers, stats, timezones}
This will dump system information from the server in
a logical form like:
* CREATE USER
* GRANT
* SET DEFAULT ROLE
* CREATE ROLE
* CREATE SERVER
* INSTALL PLUGIN
* CREATE FUNCTION
"stats" is the innodb statistics tables or EITS and
these are dumped as INSERT/REPLACE INTO statements
without recreating the table.
"timezones" is the collection of timezone tables
which are important to transfer to generate identical
results on restoration.
Two other options have an effect on the SQL generated by
--system=all. These are mutually exclusive of each other.
* --replace
* --insert-ignore
--replace will include "OR REPLACE" into the logical form
like:
* CREATE OR REPLACE USER ...
* DROP ROLE IF EXISTS (MySQL-8.0+)
* CREATE OR REPLACE ROLE ...
* UNINSTALL PLUGIN IF EXISTS (10.4+) ... (before INSTALL PLUGIN)
* DROP FUNCTION IF EXISTS (MySQL-5.7+)
* CREATE OR REPLACE [AGGREGATE] FUNCTION
* CREATE OR REPLACE SERVER
--insert-ignore uses the construct " IF NOT EXISTS" where
supported in the logical syntax.
'CREATE OR REPLACE USER' includes protection against
being run as the same user that is importing the mysqldump.
Includes experimental support for dumping mysql-5.7/8.0
system tables and exporting logical SQL compatible with MySQL.
Updates mysqldump man page, including this information and
(removing obsolute bug reference)
Reviewed-by: anel@mariadb.org
| -rw-r--r-- | client/mysqldump.c | 569 | ||||
| -rw-r--r-- | man/mysqldump.1 | 117 | ||||
| -rw-r--r-- | mysql-test/r/mysqldump-system,win.rdiff | 120 | ||||
| -rw-r--r-- | mysql-test/r/mysqldump-system.result | 467 | ||||
| -rw-r--r-- | mysql-test/t/mysqldump-system.test | 152 |
5 files changed, 1406 insertions, 19 deletions
diff --git a/client/mysqldump.c b/client/mysqldump.c index b33c5ecc010..96bfd754d42 100644 --- a/client/mysqldump.c +++ b/client/mysqldump.c @@ -39,7 +39,8 @@ ** 10 Jun 2003: SET NAMES and --no-set-names by Alexander Barkov */ -#define DUMP_VERSION "10.16" +/* on merge conflict, bump to a higher version again */ +#define DUMP_VERSION "10.19" #include <my_global.h> #include <my_sys.h> @@ -116,6 +117,21 @@ static my_bool verbose= 0, opt_no_create_info= 0, opt_no_data= 0, opt_no_data_m opt_events= 0, opt_comments_used= 0, opt_alltspcs=0, opt_notspcs= 0, opt_logging, opt_drop_trigger= 0 ; +#define OPT_SYSTEM_ALL 1 +#define OPT_SYSTEM_USERS 2 +#define OPT_SYSTEM_PLUGINS 4 +#define OPT_SYSTEM_UDFS 8 +#define OPT_SYSTEM_SERVERS 16 +#define OPT_SYSTEM_STATS 32 +#define OPT_SYSTEM_TIMEZONES 64 +static const char *opt_system_type_values[]= + {"all", "users", "plugins", "udfs", "servers", "stats", "timezones"}; +static TYPELIB opt_system_types= +{ + array_elements(opt_system_type_values), "system dump options", + opt_system_type_values, NULL +}; +static ulonglong opt_system= 0ULL; static my_bool insert_pat_inited= 0, debug_info_flag= 0, debug_check_flag= 0; static ulong opt_max_allowed_packet, opt_net_buffer_length; static MYSQL mysql_connection,*mysql=0; @@ -525,6 +541,8 @@ static struct my_option my_long_options[] = &opt_mysql_unix_port, &opt_mysql_unix_port, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, #include <sslopt-longopts.h> + {"system", 256, "Dump system tables as portable SQL", + &opt_system, &opt_system, &opt_system_types, GET_SET, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"tab",'T', "Create tab-separated textfile for each table to given path. (Create .sql " "and .txt files.) NOTE: This only works if mysqldump is run on the same " @@ -567,7 +585,7 @@ static const char *load_default_groups[]= static void maybe_exit(int error); static void die(int error, const char* reason, ...); static void maybe_die(int error, const char* reason, ...); -static void write_header(FILE *sql_file, char *db_name); +static void write_header(FILE *sql_file, const char *db_name); static void print_value(FILE *file, MYSQL_RES *result, MYSQL_ROW row, const char *prefix,const char *name, int string_value); @@ -578,6 +596,12 @@ static int init_dumping_tables(char *); static int init_dumping(char *, int init_func(char*)); static int dump_databases(char **); static int dump_all_databases(); +static int dump_all_users_roles_and_grants(); +static int dump_all_plugins(); +static int dump_all_udfs(); +static int dump_all_servers(); +static int dump_all_stats(); +static int dump_all_timezones(); static char *quote_name(const char *name, char *buff, my_bool force); char check_if_ignore_table(const char *table_name, char *table_type); static char *primary_key_fields(const char *table_name); @@ -639,9 +663,10 @@ static void print_version(void) static void short_usage_sub(FILE *f) { fprintf(f, "Usage: %s [OPTIONS] database [tables]\n", my_progname_short); - fprintf(f, "OR %s [OPTIONS] --databases [OPTIONS] DB1 [DB2 DB3...]\n", + fprintf(f, "OR %s [OPTIONS] --databases DB1 [DB2 DB3...]\n", my_progname_short); - fprintf(f, "OR %s [OPTIONS] --all-databases [OPTIONS]\n", my_progname_short); + fprintf(f, "OR %s [OPTIONS] --all-databases\n", my_progname_short); + fprintf(f, "OR %s [OPTIONS] --system=[SYSTEMOPTIONS]]\n", my_progname_short); } @@ -689,7 +714,7 @@ static const char *fix_for_comment(const char *ident) } -static void write_header(FILE *sql_file, char *db_name) +static void write_header(FILE *sql_file, const char *db_name) { if (opt_xml) { @@ -1027,6 +1052,76 @@ static int get_options(int *argc, char ***argv) if ((ho_error= handle_options(argc, argv, my_long_options, get_one_option))) return(ho_error); + if (opt_system & OPT_SYSTEM_ALL) + opt_system|= ~0; + + if (opt_system & OPT_SYSTEM_USERS && + (my_hash_insert(&ignore_table, + (uchar*) my_strdup("mysql.db", MYF(MY_WME))) || + my_hash_insert(&ignore_table, + (uchar*) my_strdup("mysql.global_priv", MYF(MY_WME))) || + my_hash_insert(&ignore_table, + (uchar*) my_strdup("mysql.tables_priv", MYF(MY_WME))) || + my_hash_insert(&ignore_table, + (uchar*) my_strdup("mysql.columns_priv", MYF(MY_WME))) || + my_hash_insert(&ignore_table, + (uchar*) my_strdup("mysql.procs_priv", MYF(MY_WME))) || + my_hash_insert(&ignore_table, + (uchar*) my_strdup("mysql.user", MYF(MY_WME))) || + my_hash_insert(&ignore_table, + (uchar*) my_strdup("mysql.host", MYF(MY_WME))) || + my_hash_insert(&ignore_table, + (uchar*) my_strdup("mysql.proxies_priv", MYF(MY_WME))) || + my_hash_insert(&ignore_table, + (uchar*) my_strdup("mysql.roles_mapping", MYF(MY_WME))) || + /* and MySQL-8.0 role tables (role_edges and default_roles) as well */ + my_hash_insert(&ignore_table, + (uchar*) my_strdup("mysql.role_edges", MYF(MY_WME))) || + my_hash_insert(&ignore_table, + (uchar*) my_strdup("mysql.default_roles", MYF(MY_WME))))) + return(EX_EOM); + + if (opt_system & OPT_SYSTEM_PLUGINS && + my_hash_insert(&ignore_table, + (uchar*) my_strdup("mysql.plugin", MYF(MY_WME)))) + return(EX_EOM); + + if (opt_system & OPT_SYSTEM_UDFS && + my_hash_insert(&ignore_table, + (uchar*) my_strdup("mysql.func", MYF(MY_WME)))) + return(EX_EOM); + + if (opt_system & OPT_SYSTEM_SERVERS && + my_hash_insert(&ignore_table, + (uchar*) my_strdup("mysql.servers", MYF(MY_WME)))) + return(EX_EOM); + + if (opt_system & OPT_SYSTEM_STATS && + (my_hash_insert(&ignore_table, + (uchar*) my_strdup("mysql.column_stats", MYF(MY_WME))) || + my_hash_insert(&ignore_table, + (uchar*) my_strdup("mysql.index_stats", MYF(MY_WME))) || + my_hash_insert(&ignore_table, + (uchar*) my_strdup("mysql.table_stats", MYF(MY_WME))) || + my_hash_insert(&ignore_table, + (uchar*) my_strdup("mysql.innodb_table_stats", MYF(MY_WME))) || + my_hash_insert(&ignore_table, + (uchar*) my_strdup("mysql.innodb_index_stats", MYF(MY_WME))))) + return(EX_EOM); + + if (opt_system & OPT_SYSTEM_TIMEZONES && + (my_hash_insert(&ignore_table, + (uchar*) my_strdup("mysql.time_zone", MYF(MY_WME))) || + my_hash_insert(&ignore_table, + (uchar*) my_strdup("mysql.time_zone_leap_second", MYF(MY_WME))) || + my_hash_insert(&ignore_table, + (uchar*) my_strdup("mysql.time_zone_name", MYF(MY_WME))) || + my_hash_insert(&ignore_table, + (uchar*) my_strdup("mysql.time_zone_transition", MYF(MY_WME))) || + my_hash_insert(&ignore_table, + (uchar*) my_strdup("mysql.time_zone_transition_type", MYF(MY_WME))))) + return(EX_EOM); + *mysql_params->p_max_allowed_packet= opt_max_allowed_packet; *mysql_params->p_net_buffer_length= opt_net_buffer_length; if (debug_info_flag) @@ -1084,7 +1179,7 @@ static int get_options(int *argc, char ***argv) !(charset_info= get_charset_by_csname(default_charset, MY_CS_PRIMARY, MYF(MY_WME)))) exit(1); - if ((*argc < 1 && !opt_alldbs) || (*argc > 0 && opt_alldbs)) + if ((*argc < 1 && (!opt_alldbs && !opt_system)) || (*argc > 0 && opt_alldbs)) { short_usage(stderr); return EX_USAGE; @@ -1208,7 +1303,6 @@ static int fetch_db_collation(const char *db_name, my_bool err_status= FALSE; MYSQL_RES *db_cl_res; MYSQL_ROW db_cl_row; - if (mysql_select_db(mysql, db_name)) { DB_error(mysql, "when selecting the database"); @@ -2721,7 +2815,7 @@ static inline my_bool general_log_or_slow_log_tables(const char *db, number of fields in table, 0 if error */ -static uint get_table_structure(char *table, char *db, char *table_type, +static uint get_table_structure(const char *table, const char *db, char *table_type, char *ignore_flag) { my_bool init=0, delayed, write_data, complete_insert; @@ -3647,7 +3741,7 @@ static char *alloc_query_str(ulong size) */ -static void dump_table(char *table, char *db, const uchar *hash_key, size_t len) +static void dump_table(const char *table, const char *db, const uchar *hash_key, size_t len) { char ignore_flag; char buf[200], table_buff[NAME_LEN+3]; @@ -4166,6 +4260,442 @@ static char *getTableName(int reset) /* + dump user/role grants + ARGS + user_role: is either a user, or a role +*/ + +static int dump_grants(const char *user_role) +{ + DYNAMIC_STRING sqlbuf; + MYSQL_ROW row; + MYSQL_RES *tableres; + + init_dynamic_string_checked(&sqlbuf, "SHOW GRANTS FOR ", 256, 1024); + dynstr_append_checked(&sqlbuf, user_role); + + if (mysql_query_with_error_report(mysql, &tableres, sqlbuf.str)) + { + dynstr_free(&sqlbuf); + return 1; + } + while ((row= mysql_fetch_row(tableres))) + { + if (strncmp(row[0], "SET DEFAULT ROLE", sizeof("SET DEFAULT ROLE") - 1) == 0) + continue; + fprintf(md_result_file, "%s;\n", row[0]); + } + mysql_free_result(tableres); + dynstr_free(&sqlbuf); + return 0; +} + + +/* + dump create user +*/ + +static int dump_create_user(const char *user) +{ + DYNAMIC_STRING sqlbuf; + MYSQL_ROW row; + MYSQL_RES *tableres; + + init_dynamic_string_checked(&sqlbuf, "SHOW CREATE USER ", 256, 1024); + dynstr_append_checked(&sqlbuf, user); + + if (mysql_query_with_error_report(mysql, &tableres, sqlbuf.str)) + { + dynstr_free(&sqlbuf); + return 1; + } + while ((row= mysql_fetch_row(tableres))) + { + fprintf(md_result_file, "CREATE %sUSER %s%s;\n", opt_replace_into ? "/*M!100103 OR REPLACE */ ": "", + opt_ignore ? "IF NOT EXISTS " : "", + row[0] + sizeof("CREATE USER")); + } + mysql_free_result(tableres); + dynstr_free(&sqlbuf); + return 0; +} + + +/* + dump all users, roles and their grants +*/ + +static int dump_all_users_roles_and_grants() +{ + MYSQL_ROW row; + MYSQL_RES *tableres; + int result= 0; + /* Roles added in MariaDB-10.0.5 or MySQL-8.0 */ + my_bool maria_roles_exist= (mysql_get_server_version(mysql) >= 100005); + my_bool mysql_roles_exist= (mysql_get_server_version(mysql) >= 80001) && !maria_roles_exist; + + if (mysql_query_with_error_report(mysql, &tableres, + "SELECT CONCAT(QUOTE(u.user), '@', QUOTE(u.Host)) AS u " + "FROM mysql.user u " + " /*!80001 LEFT JOIN mysql.role_edges e " + " ON u.user=e.from_user " + " AND u.host=e.from_host " + " WHERE e.from_user IS NULL */" + " /*M!100005 WHERE is_role='N' */")) + return 1; + while ((row= mysql_fetch_row(tableres))) + { + if (opt_replace_into) + /* Protection against removing the current import user */ + /* MySQL-8.0 export capability */ + fprintf(md_result_file, + "DELIMITER |\n" + "/*M!100101 IF current_user()=\"%s\" THEN\n" + " SIGNAL SQLSTATE '45000' SET MYSQL_ERRNO=30001," + " MESSAGE_TEXT=\"Don't remove current user %s'\";\n" + "END IF */|\n" + "DELIMITER ;\n" + "/*!50701 DROP USER IF EXISTS %s */;\n", row[0], row[0], row[0]); + if (dump_create_user(row[0])) + result= 1; + /* if roles exist, defer dumping grants until after roles created */ + if (maria_roles_exist || mysql_roles_exist) + continue; + if (dump_grants(row[0])) + result= 1; + } + mysql_free_result(tableres); + + if (!(maria_roles_exist || mysql_roles_exist)) + goto exit; + + /* + Preserve current role active role, in case this dump is imported + in the same connection that assumes the active role at the beginning + is the same as at the end of the connection. This is so: + + #!/bin/sh + ( + echo "set role special_role; "; + cat mysqldump.sql; + echo "$dosomethingspecial" + ) | mysql -h $host + + doesn't end up with a suprise that the $dosomethingspecial cannot + be done because `special_role` isn't active. + + We create a new role for importing that becomes the default admin for new + roles. This is because without being a admin on new roles we don't + have the necessary privileges to grant users to a created role or to + create new admins for the created role. + + At the end of the import the mariadb_dump_import_role is be dropped, + which implictly drops all its admin aspects of the dropped role. + This is significiantly easlier than revoking the ADMIN of each role + from the current user. + */ + fputs("SELECT COALESCE(CURRENT_ROLE(),'NONE') into @current_role;\n" + "CREATE ROLE IF NOT EXISTS mariadb_dump_import_role;\n" + "GRANT mariadb_dump_import_role TO CURRENT_USER();\n" + "SET ROLE mariadb_dump_import_role;\n" + , md_result_file); + /* No show create role yet, MDEV-22311 */ + /* Roles, with user admins first, then roles they administer, and recurse on that */ + if (maria_roles_exist && mysql_query_with_error_report(mysql, &tableres, + "WITH RECURSIVE create_role_order AS" + " (SELECT 1 as n, roles_mapping.*" + " FROM mysql.roles_mapping" + " JOIN mysql.user USING (user,host)" + " WHERE is_role='N'" + " AND Admin_option='Y'" + " UNION SELECT c.n+1, r.*" + " FROM create_role_order c" + " JOIN mysql.roles_mapping r ON c.role=r.user" + " AND r.host=''" + " AND r.Admin_option='Y') " + "SELECT QUOTE(ROLE) AS r," + " CONCAT(QUOTE(user)," + " IF(HOST='', '', CONCAT('@', QUOTE(HOST)))) AS c," + " Admin_option " + "FROM create_role_order ORDER BY n, r, user")) + return 1; + /* + TODO Mysql - misses roles that have no admin or role members. + MySQL roles don't require an admin. + */ + if (mysql_roles_exist && mysql_query_with_error_report(mysql, &tableres, + "WITH RECURSIVE create_role_order AS" + " (SELECT 1 AS n," + " re.*" + " FROM mysql.role_edges re" + " JOIN mysql.user u ON re.TO_HOST=u.HOST" + " AND re.TO_USER = u.USER" + " LEFT JOIN mysql.role_edges re2 ON re.TO_USER=re2.FROM_USER" + " AND re2.TO_HOST=re2.FROM_HOST" + " WHERE re2.FROM_USER IS NULL" + " UNION SELECT c.n+1," + " re.*" + " FROM create_role_order c" + " JOIN mysql.role_edges re ON c.FROM_USER=re.TO_USER" + " AND c.FROM_HOST=re.TO_HOST) " + "SELECT CONCAT(QUOTE(FROM_USER), '/*!80001 @', QUOTE(FROM_HOST), '*/') AS r," + " CONCAT(QUOTE(TO_USER), IF(n=1, CONCAT('@', QUOTE(TO_HOST))," + " CONCAT('/*!80001 @', QUOTE(TO_HOST), ' */'))) AS u," + " WITH_ADMIN_OPTION " + "FROM create_role_order " + "ORDER BY n," + " FROM_USER," + " FROM_HOST," + " TO_USER," + " TO_HOST," + " WITH_ADMIN_OPTION")) + return 1; + while ((row= mysql_fetch_row(tableres))) + { + /* MySQL-8.0 export capability */ + if (opt_replace_into) + fprintf(md_result_file, + "/*!80001 DROP ROLE IF EXISTS %s */;\n", row[0]); + fprintf(md_result_file, + "/*!80001 CREATE ROLE %s%s */;\n", opt_ignore ? "IF NOT EXISTS " : "", row[0]); + /* By default created with current role */ + fprintf(md_result_file, + "%sROLE %s%s WITH ADMIN mariadb_dump_import_role */;\n", + opt_replace_into ? "/*M!100103 CREATE OR REPLACE ": "/*M!100005 CREATE ", + opt_ignore ? "IF NOT EXISTS " : "", row[0]); + fprintf(md_result_file, "/*M!100005 GRANT %s TO %s%s*/;\n", + row[0], row[1], (row[2][0] == 'Y') ? " WITH ADMIN OPTION " : ""); + } + mysql_free_result(tableres); + + /* users and their default role */ + if (maria_roles_exist && mysql_query_with_error_report(mysql, &tableres, + "select IF(default_role='', 'NONE', QUOTE(default_role)) as r," + "concat(QUOTE(User), '@', QUOTE(Host)) as u FROM mysql.user " + "/*M!100005 WHERE is_role='N' */")) + return 1; + if (mysql_roles_exist && mysql_query_with_error_report(mysql, &tableres, + "SELECT IF(DEFAULT_ROLE_HOST IS NULL, 'NONE', CONCAT(QUOTE(DEFAULT_ROLE_USER)," + " '@', QUOTE(DEFAULT_ROLE_HOST))) as r," + " CONCAT(QUOTE(mu.USER),'@',QUOTE(mu.HOST)) as u " + "FROM mysql.user mu LEFT JOIN mysql.default_roles using (USER, HOST)")) + return 1; + while ((row= mysql_fetch_row(tableres))) + { + if (dump_grants(row[1])) + result= 1; + fprintf(md_result_file, "/*M!100005 SET DEFAULT ROLE %s FOR %s */;\n", row[0], row[1]); + fprintf(md_result_file, "/*!80001 ALTER USER %s DEFAULT ROLE %s */;\n", row[1], row[0]); + } + mysql_free_result(tableres); + + if (maria_roles_exist && mysql_query_with_error_report(mysql, &tableres, + "SELECT DISTINCT QUOTE(m.role) AS r " + " FROM mysql.roles_mapping m" + " JOIN mysql.user u ON u.user = m.role" + " WHERE is_role='Y'" + " AND Admin_option='Y'" + " ORDER BY m.role")) + return 1; + if (mysql_roles_exist && mysql_query_with_error_report(mysql, &tableres, + "SELECT DISTINCT CONCAT(QUOTE(FROM_USER),'@', QUOTE(FROM_HOST)) AS r " + "FROM mysql.role_edges")) + return 1; + while ((row= mysql_fetch_row(tableres))) + { + if (dump_grants(row[0])) + result= 1; + } + mysql_free_result(tableres); + /* switch back */ + fputs("SET ROLE NONE;\n" + "DROP ROLE mariadb_dump_import_role;\n" + "/*M!100203 EXECUTE IMMEDIATE CONCAT('SET ROLE ', @current_role) */;\n", + md_result_file); +exit: + + return result; +} + + +/* + dump all plugins +*/ + +static int dump_all_plugins() +{ + MYSQL_ROW row; + MYSQL_RES *tableres; + + if (mysql_query_with_error_report(mysql, &tableres, "SHOW PLUGINS")) + return 1; + /* Name, Status, Type, Library, License */ + while ((row= mysql_fetch_row(tableres))) + { + if (strcmp("ACTIVE", row[1]) != 0) + continue; + /* Should we be skipping builtins? */ + if (row[3] == NULL) + continue; + if (opt_replace_into) + { + fprintf(md_result_file, "/*M!100401 UNINSTALL PLUGIN IF EXIST %s */;\n", + row[0]); + } + fprintf(md_result_file, + "INSTALL PLUGIN %s %s SONAME '%s';\n", row[0], + opt_ignore ? "/*M!100401 IF NOT EXISTS */" : "", row[3]); + } + mysql_free_result(tableres); + + return 0; +} + + +/* + dump all udfs +*/ + +static int dump_all_udfs() +{ + /* we don't support all these types yet, but get prepared if we do */ + static const char *udf_types[] = {"STRING", "REAL", "INT", "ROW", "DECIMAL", "TIME" }; + MYSQL_ROW row; + MYSQL_RES *tableres; + int retresult, result= 0; + + if (mysql_query_with_error_report(mysql, &tableres, "SELECT * FROM mysql.func")) + return 1; + /* Name, ret, dl, type*/ + while ((row= mysql_fetch_row(tableres))) + { + retresult= atoi(row[1]); + if (retresult < 0 || array_elements(udf_types) <= (size_t) retresult) + { + fprintf(stderr, "%s: Error: invalid return type on udf function '%s'\n", + my_progname_short, row[0]); + result= 1; + continue; + } + if (opt_replace_into) + { + fprintf(md_result_file, "/*!50701 DROP FUNCTION IF EXISTS %s */;\n", + row[0]); + } + fprintf(md_result_file, + "CREATE %s%sFUNCTION %s%s RETURNS %s SONAME '%s';\n", + opt_replace_into ? "/*M!100103 OR REPLACE */ ": "", + (strcmp("AGGREGATE", row[2])==0 ? "AGGREGATE " : ""), + opt_ignore ? "IF NOT EXISTS " : "", row[0], udf_types[retresult], row[2]); + } + mysql_free_result(tableres); + + return result; +} + + +/* + dump all servers +*/ + +static int dump_all_servers() +{ + /* No create server yet - MDEV-15696 */ + MYSQL_ROW row; + MYSQL_RES *tableres; + MYSQL_FIELD *f; + unsigned int num_fields, i; + my_bool comma_prepend= 0; + const char *qstring; + + if (mysql_query_with_error_report(mysql, &tableres, "SELECT * FROM mysql.servers")) + return 1; + num_fields= mysql_num_fields(tableres); + while ((row= mysql_fetch_row(tableres))) + { + fprintf(md_result_file,"CREATE %sSERVER %s%s FOREIGN DATA WRAPPER %s OPTIONS (", + opt_replace_into ? "/*M!100103 OR REPLACE */ ": "", + opt_ignore ? "/*M!100103 IF NOT EXISTS */ " : "", row[0], row[7]); + for (i= 1; i < num_fields; i++) + { + if (i == 7 || row[i][0] == '\0') /* Wrapper or empty string */ + continue; + f= &tableres->fields[i]; + qstring= (f->type == MYSQL_TYPE_STRING || f->type == MYSQL_TYPE_VAR_STRING) ? "'" : ""; + fprintf(md_result_file, "%s%s %s%s%s", + (comma_prepend ? ", " : ""), f->name, qstring, row[i], qstring); + comma_prepend= 1; + } + fputs(");\n", md_result_file); + } + mysql_free_result(tableres); + + return 0; +} + + +/* + dump all system statistical tables +*/ + +static int dump_all_stats() +{ + my_bool prev_no_create_info; + + if (mysql_select_db(mysql, "mysql")) + { + DB_error(mysql, "when selecting the database"); + return 1; /* If --force */ + } + fprintf(md_result_file,"\nUSE mysql;\n"); + prev_no_create_info= opt_no_create_info; + opt_no_create_info= 1; /* don't overwrite recreate tables */ + /* EITS added in 10.0.1 */ + if (mysql_get_server_version(mysql) >= 100001) + { + dump_table("column_stats", "mysql", NULL, 0); + dump_table("index_stats", "mysql", NULL, 0); + dump_table("table_stats", "mysql", NULL, 0); + } + /* Innodb may be disabled */ + if (!mysql_query(mysql, "show fields from innodb_index_stats")) + { + MYSQL_RES *tableres= mysql_store_result(mysql); + mysql_free_result(tableres); + dump_table("innodb_index_stats", "mysql", NULL, 0); + dump_table("innodb_table_stats", "mysql", NULL, 0); + } + opt_no_create_info= prev_no_create_info; + return 0; +} + + +/* + dump all system timezones +*/ + +static int dump_all_timezones() +{ + my_bool opt_prev_no_create_info; + if (mysql_select_db(mysql, "mysql")) + { + DB_error(mysql, "when selecting the database"); + return 1; /* If --force */ + } + opt_prev_no_create_info= opt_no_create_info; + opt_no_create_info= 1; + fprintf(md_result_file,"\nUSE mysql;\n"); + dump_table("time_zone", "mysql", NULL, 0); + dump_table("time_zone_name", "mysql", NULL, 0); + dump_table("time_zone_leap_second", "mysql", NULL, 0); + dump_table("time_zone_transition", "mysql", NULL, 0); + dump_table("time_zone_transition_type", "mysql", NULL, 0); + opt_no_create_info= opt_prev_no_create_info; + return 0; +} + + +/* dump all logfile groups and tablespaces */ @@ -6175,7 +6705,7 @@ int main(int argc, char **argv) dump_tablespaces_for_tables(*argv, (argv + 1), (argc - 1)); dump_selected_tables(*argv, (argv + 1), (argc - 1)); } - else + else if (argc > 0) { /* One or more databases, all tables */ if (!opt_alltspcs && !opt_notspcs) @@ -6184,6 +6714,25 @@ int main(int argc, char **argv) } } + if (opt_system & OPT_SYSTEM_PLUGINS) + dump_all_plugins(); + + if (opt_system & OPT_SYSTEM_USERS) + dump_all_users_roles_and_grants(); + + if (opt_system & OPT_SYSTEM_UDFS) + dump_all_udfs(); + + if (opt_system & OPT_SYSTEM_SERVERS) + dump_all_servers(); + + /* These must be last as they explictly change the current database to mysql */ + if (opt_system & OPT_SYSTEM_STATS) + dump_all_stats(); + + if (opt_system & OPT_SYSTEM_TIMEZONES) + dump_all_timezones(); + /* add 'START SLAVE' to end of dump */ if (opt_slave_apply && add_slave_statements()) goto err; diff --git a/man/mysqldump.1 b/man/mysqldump.1 index 7594703d20a..ee2048d0008 100644 --- a/man/mysqldump.1 +++ b/man/mysqldump.1 @@ -1,6 +1,6 @@ '\" t .\" -.TH "\FBMYSQLDUMP\FR" "1" "3 April 2017" "MariaDB 10\&.2" "MariaDB Database System" +.TH "\FBMYSQLDUMP\FR" "1" "24 October 2020" "MariaDB 10\&.2" "MariaDB Database System" .\" ----------------------------------------------------------------- .\" * set default formatting .\" ----------------------------------------------------------------- @@ -36,7 +36,7 @@ tables, consider using the instead because it can accomplish faster backups and faster restores\&. See \fBmysqlhotcopy\fR(1)\&. .PP -There are three general ways to invoke +There are four general ways to invoke \fBmysqldump\fR: .sp .if n \{\ @@ -46,6 +46,7 @@ There are three general ways to invoke shell> \fBmysqldump [\fR\fB\fIoptions\fR\fR\fB] \fR\fB\fIdb_name\fR\fR\fB [\fR\fB\fItbl_name\fR\fR\fB \&.\&.\&.]\fR shell> \fBmysqldump [\fR\fB\fIoptions\fR\fR\fB] \-\-databases \fR\fB\fIdb_name\fR\fR\fB \&.\&.\&.\fR shell> \fBmysqldump [\fR\fB\fIoptions\fR\fR\fB] \-\-all\-databases\fR +shell> \fBmysqldump [\fR\fB\fIoptions\fR\fR\fB] \-\-system={options}\fR .fi .if n \{\ .RE @@ -2192,6 +2193,110 @@ Verify server's "Common Name" in its cert against hostname used when connecting. .sp -1 .IP \(bu 2.3 .\} +.\" mysqladmin: Dump system tables option +.\" Dump system tables option: mysqladmin +\fB\-\-system=\fR\fB\fI{all, users, plugins, udfs, servers, stats, timezones}\fR\fR +.sp +Dump the system tables in the mysql database in a logical form\&. This option is an empty set by default\&. +.sp +One or more options can be listed in comma separated list\&. +.sp +The options here are: +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +all \- an alias to enabling all of the below options\&. +.RE +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +users \- the users, roles and their grants outputed as \fBCREATE USER\fB, \fBCREATE ROLE\fR, \fBGRANT\fR, and \fBSET DEFAULT ROLE\fR (\fBALTER USER\fR for MySQL-8.0+)\&. +.RE +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +plugins \- active plugins of the server outputed as \fBINSTALL PLUGIN\fR\&. +.RE +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +udfs \- user define functions outputed as \fBCREATE FUNCTION\fR\&. +.RE +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +servers \- remote (federated) servers as \fBCREATE SERVER\fR\&. +.RE +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +stats \- statistics tables, InnoDB and Engine Independent Table Statistics (EITS), are dumped as \fBINSERT\fR/\fBREPLACE INFO\fR statements without (re)creating tables\&. +.RE +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +timezones \- timezone related system tables dumped as \fBINSERT\fR/\fBREPLACE INTO\fR statements without (re)creating tables\&. +.RE +.sp +The format of the output is affected by \fB\-\-replace\fR and \fB\-\-insert\-into\fR\&. The \fB\-\-replace\fR option will output \fBCREATE OR REPLACE\fR +forms of SQL, and also \fBDROP IF EXISTS\fR prior to \fBCREATE\fR, if a \fBCREATE OR REPLACE\fR option isn't available. +.sp +With \fB\-\-system=user\fR (or \fBall\fR), and \fB\-\-replace\fR, SQL is generated to generate an error if attempting to import the dump with a connection user that is being replaced within the dump\&. +.sp +The \fB\-\-insert\-into\fR option will cause \fBCREATE IF NOT EXIST\fR forms of SQL to generated if available. +.sp +For stats, and timezones, \fB\-\-replace\fR and \fB\-\-insert\-info\fR have the usual effects. +.sp +Enabling specific options here will cause the relevant tables in the mysql database to be ignored when dumping the mysql database or \fB\-\-all\-databases\fR\&. +.sp +Experimentally this option is designed to be able to dump system information from MySQL-5\&.7 and 8\&.0 servers\&. SQL generated is also +experimentally compatible with MySQL-5\&.7/8\&.0\&. Mappings of implemenation specific grants/plugins isn't always one-to-one however\&. +.sp +.RE +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} .\" mysqldump: tab option .\" tab option: mysqldump \fB\-\-tab=\fR\fB\fIpath\fR\fR, @@ -2673,7 +2778,7 @@ If you encounter problems backing up views, please read the section that covers .SH "COPYRIGHT" .br .PP -Copyright 2007-2008 MySQL AB, 2008-2010 Sun Microsystems, Inc., 2010-2015 MariaDB Foundation +Copyright 2007-2008 MySQL AB, 2008-2010 Sun Microsystems, Inc., 2010-2020 MariaDB Foundation .PP This documentation is free software; you can redistribute it and/or modify it only under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License. .PP @@ -2681,12 +2786,6 @@ This documentation is distributed in the hope that it will be useful, but WITHOU .PP You should have received a copy of the GNU General Public License along with the program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA or see http://www.gnu.org/licenses/. .sp -.SH "NOTES" -.IP " 1." 4 -Bug#30123 -.RS 4 -\%http://bugs.mysql.com/bug.php?id=30123 -.RE .SH "SEE ALSO" For more information, please refer to the MariaDB Knowledge Base, available online at https://mariadb.com/kb/ .SH AUTHOR diff --git a/mysql-test/r/mysqldump-system,win.rdiff b/mysql-test/r/mysqldump-system,win.rdiff new file mode 100644 index 00000000000..5a80c71ae57 --- /dev/null +++ b/mysql-test/r/mysqldump-system,win.rdiff @@ -0,0 +1,120 @@ +diff --git a/mysql-test/r/mysqldump-system.result b/mysql-test/r/mysqldump-system.result +index 88cf950c621..5f8b579fa67 100644 +--- a/mysql-test/r/mysqldump-system.result ++++ b/mysql-test/r/mysqldump-system.result +@@ -7,8 +7,6 @@ + delete from mysql.user where host not in ('localhost'); + flush privileges; + create user USER; +-install plugin /*M!100401 IF NOT EXISTS */ unix_socket soname 'auth_socket.so';; +-alter user USER identified via unix_socket; + CREATE ROLE role_1; + CREATE ROLE role_2 WITH ADMIN role_1; + GRANT SHOW DATABASES ON *.* TO role_1; +@@ -48,9 +46,8 @@ + /*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */; + /*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */; + /*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */; +-INSTALL PLUGIN unix_socket SONAME 'auth_socket.so'; + CREATE USER 'root'@'localhost'; +-CREATE USER 'USER'@'%' IDENTIFIED VIA unix_socket; ++CREATE USER 'USER'@'%'; + SELECT COALESCE(CURRENT_ROLE(),'NONE') into @current_role; + CREATE ROLE IF NOT EXISTS mariadb_dump_import_role; + GRANT mariadb_dump_import_role TO CURRENT_USER(); +@@ -68,7 +65,7 @@ + /*!80001 ALTER USER 'root'@'localhost' DEFAULT ROLE NONE */; + GRANT role_1 TO 'USER'@'%'; + GRANT role_2 TO 'USER'@'%'; +-GRANT USAGE ON *.* TO 'USER'@'%' IDENTIFIED VIA unix_socket; ++GRANT USAGE ON *.* TO 'USER'@'%'; + /*M!100005 SET DEFAULT ROLE 'role_2' FOR 'USER'@'%' */; + /*!80001 ALTER USER 'USER'@'%' DEFAULT ROLE 'role_2' */; + GRANT role_2 TO 'role_1' WITH ADMIN OPTION; +@@ -168,8 +165,6 @@ + /*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */; + /*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */; + /*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */; +-/*M!100401 UNINSTALL PLUGIN IF EXIST unix_socket */; +-INSTALL PLUGIN unix_socket SONAME 'auth_socket.so'; + DELIMITER | + /*M!100101 IF current_user()="'root'@'localhost'" THEN + SIGNAL SQLSTATE '45000' SET MYSQL_ERRNO=30001, MESSAGE_TEXT="Don't remove current user 'root'@'localhost''"; +@@ -183,7 +178,7 @@ + END IF */| + DELIMITER ; + /*!50701 DROP USER IF EXISTS 'USER'@'%' */; +-CREATE /*M!100103 OR REPLACE */ USER 'USER'@'%' IDENTIFIED VIA unix_socket; ++CREATE /*M!100103 OR REPLACE */ USER 'USER'@'%'; + SELECT COALESCE(CURRENT_ROLE(),'NONE') into @current_role; + CREATE ROLE IF NOT EXISTS mariadb_dump_import_role; + GRANT mariadb_dump_import_role TO CURRENT_USER(); +@@ -203,7 +198,7 @@ + /*!80001 ALTER USER 'root'@'localhost' DEFAULT ROLE NONE */; + GRANT role_1 TO 'USER'@'%'; + GRANT role_2 TO 'USER'@'%'; +-GRANT USAGE ON *.* TO 'USER'@'%' IDENTIFIED VIA unix_socket; ++GRANT USAGE ON *.* TO 'USER'@'%'; + /*M!100005 SET DEFAULT ROLE 'role_2' FOR 'USER'@'%' */; + /*!80001 ALTER USER 'USER'@'%' DEFAULT ROLE 'role_2' */; + GRANT role_2 TO 'role_1' WITH ADMIN OPTION; +@@ -304,9 +299,8 @@ + /*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */; + /*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */; + /*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */; +-INSTALL PLUGIN unix_socket /*M!100401 IF NOT EXISTS */ SONAME 'auth_socket.so'; + CREATE USER IF NOT EXISTS 'root'@'localhost'; +-CREATE USER IF NOT EXISTS 'USER'@'%' IDENTIFIED VIA unix_socket; ++CREATE USER IF NOT EXISTS 'USER'@'%'; + SELECT COALESCE(CURRENT_ROLE(),'NONE') into @current_role; + CREATE ROLE IF NOT EXISTS mariadb_dump_import_role; + GRANT mariadb_dump_import_role TO CURRENT_USER(); +@@ -324,7 +318,7 @@ + /*!80001 ALTER USER 'root'@'localhost' DEFAULT ROLE NONE */; + GRANT role_1 TO 'USER'@'%'; + GRANT role_2 TO 'USER'@'%'; +-GRANT USAGE ON *.* TO 'USER'@'%' IDENTIFIED VIA unix_socket; ++GRANT USAGE ON *.* TO 'USER'@'%'; + /*M!100005 SET DEFAULT ROLE 'role_2' FOR 'USER'@'%' */; + /*!80001 ALTER USER 'USER'@'%' DEFAULT ROLE 'role_2' */; + GRANT role_2 TO 'role_1' WITH ADMIN OPTION; +@@ -413,12 +407,12 @@ + CHECKSUM TABLE mysql.user, mysql.roles_mapping, mysql.time_zone_transition, mysql.plugin, + mysql.servers, mysql.func, mysql.innodb_table_stats, mysql.table_stats; + Table Checksum +-mysql.user 205632094 ++mysql.user 926820922 + mysql.roles_mapping 3150178430 + mysql.time_zone_transition 3895294076 +-mysql.plugin 1520695737 ++mysql.plugin 0 + mysql.servers 2783974349 +-mysql.func 3241572444 ++mysql.func 310494789 + mysql.innodb_table_stats 347867921 + mysql.table_stats 664320059 + # Opps.... +@@ -442,12 +436,12 @@ + CHECKSUM TABLE mysql.user, mysql.roles_mapping, mysql.time_zone_transition, mysql.plugin, + mysql.servers, mysql.func, mysql.innodb_table_stats, mysql.table_stats; + Table Checksum +-mysql.user 205632094 ++mysql.user 926820922 + mysql.roles_mapping 3150178430 + mysql.time_zone_transition 3895294076 +-mysql.plugin 1520695737 ++mysql.plugin 0 + mysql.servers 2783974349 +-mysql.func 3241572444 ++mysql.func 310494789 + mysql.innodb_table_stats 347867921 + mysql.table_stats 664320059 + DROP FUNCTION IF EXISTS metaphon; +@@ -461,7 +455,6 @@ + DROP ROLE role_2; + DROP ROLE role_1; + drop user USER; +-uninstall plugin unix_socket; + insert into mysql.user select * from backup_users; + flush privileges; + drop table backup_users; diff --git a/mysql-test/r/mysqldump-system.result b/mysql-test/r/mysqldump-system.result new file mode 100644 index 00000000000..88cf950c621 --- /dev/null +++ b/mysql-test/r/mysqldump-system.result @@ -0,0 +1,467 @@ +# +# MDEV-23630: mysqldump to logically dump system tables +# +# +create table backup_users like mysql.user; +insert into backup_users select * from mysql.user where host not in ('localhost'); +delete from mysql.user where host not in ('localhost'); +flush privileges; +create user USER; +install plugin /*M!100401 IF NOT EXISTS */ unix_socket soname 'auth_socket.so';; +alter user USER identified via unix_socket; +CREATE ROLE role_1; +CREATE ROLE role_2 WITH ADMIN role_1; +GRANT SHOW DATABASES ON *.* TO role_1; +GRANT role_1 TO USER; +GRANT role_2 TO USER; +SET DEFAULT ROLE role_2 FOR USER; +ALTER TABLE mysql.roles_mapping ORDER BY Host, User, Role; +set @save_innodb_stats_persistent= @@innodb_stats_persistent; +create table mysql.tz like mysql.time_zone_transition; +alter table mysql.tz engine=innodb; +insert into mysql.tz select * from mysql.time_zone_transition; +set global innodb_stats_persistent=1; +ANALYZE TABLE mysql.tz PERSISTENT FOR ALL; +Table Op Msg_type Msg_text +mysql.tz analyze status Engine-independent statistics collected +mysql.tz analyze status OK +delete from mysql.index_stats where prefix_arity!=1; +delete from mysql.column_stats where column_name!='Time_zone_id'; +set time_zone="+03:00"; +update mysql.innodb_index_stats set last_update="2020-01-01" where database_name="mysql" and table_name="tz"; +update mysql.innodb_table_stats set last_update="2020-01-01" where database_name="mysql" and table_name="tz"; +set global innodb_stats_persistent= @save_innodb_stats_persistent; +alter table mysql.time_zone_name ORDER BY Name; +CREATE SERVER s1 FOREIGN DATA WRAPPER mysql OPTIONS(Host 'localhost'); +CREATE FUNCTION metaphon RETURNS STRING SONAME "UDF_EXAMPLE_LIB"; +# +# mysqldump of system tables with --system=all +# + +/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */; +/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */; +/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */; +/*!40101 SET NAMES utf8 */; +/*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */; +/*!40103 SET TIME_ZONE='+00:00' */; +/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */; +/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */; +/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */; +/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */; +INSTALL PLUGIN unix_socket SONAME 'auth_socket.so'; +CREATE USER 'root'@'localhost'; +CREATE USER 'USER'@'%' IDENTIFIED VIA unix_socket; +SELECT COALESCE(CURRENT_ROLE(),'NONE') into @current_role; +CREATE ROLE IF NOT EXISTS mariadb_dump_import_role; +GRANT mariadb_dump_import_role TO CURRENT_USER(); +SET ROLE mariadb_dump_import_role; +/*!80001 CREATE ROLE 'role_1' */; +/*M!100005 CREATE ROLE 'role_1' WITH ADMIN mariadb_dump_import_role */; +/*M!100005 GRANT 'role_1' TO 'root'@'localhost' WITH ADMIN OPTION */; +/*!80001 CREATE ROLE 'role_2' */; +/*M!100005 CREATE ROLE 'role_2' WITH ADMIN mariadb_dump_import_role */; +/*M!100005 GRANT 'role_2' TO 'role_1' WITH ADMIN OPTION */; +GRANT role_1 TO 'root'@'localhost' WITH ADMIN OPTION; +GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' WITH GRANT OPTION; +GRANT PROXY ON ''@'%' TO 'root'@'localhost' WITH GRANT OPTION; +/*M!100005 SET DEFAULT ROLE NONE FOR 'root'@'localhost' */; +/*!80001 ALTER USER 'root'@'localhost' DEFAULT ROLE NONE */; +GRANT role_1 TO 'USER'@'%'; +GRANT role_2 TO 'USER'@'%'; +GRANT USAGE ON *.* TO 'USER'@'%' IDENTIFIED VIA unix_socket; +/*M!100005 SET DEFAULT ROLE 'role_2' FOR 'USER'@'%' */; +/*!80001 ALTER USER 'USER'@'%' DEFAULT ROLE 'role_2' */; +GRANT role_2 TO 'role_1' WITH ADMIN OPTION; +GRANT SHOW DATABASES ON *.* TO 'role_1'; +GRANT USAGE ON *.* TO 'role_2'; +GRANT USAGE ON *.* TO 'role_2'; +SET ROLE NONE; +DROP ROLE mariadb_dump_import_role; +/*M!100203 EXECUTE IMMEDIATE CONCAT('SET ROLE ', @current_role) */; +CREATE FUNCTION metaphon RETURNS STRING SONAME 'UDF_EXAMPLE_LIB'; +CREATE SERVER s1 FOREIGN DATA WRAPPER mysql OPTIONS (Host 'localhost', Port 3306); + +USE mysql; + +LOCK TABLES `column_stats` WRITE; +/*!40000 ALTER TABLE `column_stats` DISABLE KEYS */; +INSERT INTO `column_stats` VALUES ('mysql','tz','Time_zone_id','1','5',0.0000,4.0000,98.2500,0,NULL,NULL); +/*!40000 ALTER TABLE `column_stats` ENABLE KEYS */; +UNLOCK TABLES; + +LOCK TABLES `index_stats` WRITE; +/*!40000 ALTER TABLE `index_stats` DISABLE KEYS */; +INSERT INTO `index_stats` VALUES ('mysql','tz','PRIMARY',1,98.2500); +/*!40000 ALTER TABLE `index_stats` ENABLE KEYS */; +UNLOCK TABLES; + +LOCK TABLES `table_stats` WRITE; +/*!40000 ALTER TABLE `table_stats` DISABLE KEYS */; +INSERT INTO `table_stats` VALUES ('mysql','tz',393); +/*!40000 ALTER TABLE `table_stats` ENABLE KEYS */; +UNLOCK TABLES; + +LOCK TABLES `innodb_index_stats` WRITE; +/*!40000 ALTER TABLE `innodb_index_stats` DISABLE KEYS */; +INSERT INTO `innodb_index_stats` VALUES ('mysql','tz','PRIMARY','2019-12-31 21:00:00','n_diff_pfx01',4,1,'Time_zone_id'),('mysql','tz','PRIMARY','2019-12-31 21:00:00','n_diff_pfx02',393,1,'Time_zone_id,Transition_time'),('mysql','tz','PRIMARY','2019-12-31 21:00:00','n_leaf_pages',1,NULL,'Number of leaf pages in the index'),('mysql','tz','PRIMARY','2019-12-31 21:00:00','size',1,NULL,'Number of pages in the index'); +/*!40000 ALTER TABLE `innodb_index_stats` ENABLE KEYS */; +UNLOCK TABLES; + +LOCK TABLES `innodb_table_stats` WRITE; +/*!40000 ALTER TABLE `innodb_table_stats` DISABLE KEYS */; +INSERT INTO `innodb_table_stats` VALUES ('mysql','tz','2019-12-31 21:00:00',393,1,0); +/*!40000 ALTER TABLE `innodb_table_stats` ENABLE KEYS */; +UNLOCK TABLES; + +USE mysql; + +LOCK TABLES `time_zone` WRITE; +/*!40000 ALTER TABLE `time_zone` DISABLE KEYS */; +INSERT INTO `time_zone` VALUES (1,'N'),(2,'N'),(3,'N'),(4,'Y'),(5,'N'); +/*!40000 ALTER TABLE `time_zone` ENABLE KEYS */; +UNLOCK TABLES; + +LOCK TABLES `time_zone_name` WRITE; +/*!40000 ALTER TABLE `time_zone_name` DISABLE KEYS */; +INSERT INTO `time_zone_name` VALUES ('Europe/Moscow',3),('Japan',5),('leap/Europe/Moscow',4),('MET',1),('Universal',2),('UTC',2); +/*!40000 ALTER TABLE `time_zone_name` ENABLE KEYS */; +UNLOCK TABLES; + +LOCK TABLES `time_zone_leap_second` WRITE; +/*!40000 ALTER TABLE `time_zone_leap_second` DISABLE KEYS */; +INSERT INTO `time_zone_leap_second` VALUES (78796800,1),(94694401,2),(126230402,3),(157766403,4),(189302404,5),(220924805,6),(252460806,7),(283996807,8),(315532808,9),(362793609,10),(394329610,11),(425865611,12),(489024012,13),(567993613,14),(631152014,15),(662688015,16),(709948816,17),(741484817,18),(773020818,19),(820454419,20),(867715220,21),(915148821,22); +/*!40000 ALTER TABLE `time_zone_leap_second` ENABLE KEYS */; +UNLOCK TABLES; + +LOCK TABLES `time_zone_transition` WRITE; +/*!40000 ALTER TABLE `time_zone_transition` DISABLE KEYS */; +INSERT INTO `time_zone_transition` VALUES 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*/; +GRANT role_2 TO 'role_1' WITH ADMIN OPTION; +GRANT SHOW DATABASES ON *.* TO 'role_1'; +GRANT USAGE ON *.* TO 'role_2'; +GRANT USAGE ON *.* TO 'role_2'; +SET ROLE NONE; +DROP ROLE mariadb_dump_import_role; +/*M!100203 EXECUTE IMMEDIATE CONCAT('SET ROLE ', @current_role) */; +/*!50701 DROP FUNCTION IF EXISTS metaphon */; +CREATE /*M!100103 OR REPLACE */ FUNCTION metaphon RETURNS STRING SONAME 'UDF_EXAMPLE_LIB'; +CREATE /*M!100103 OR REPLACE */ SERVER s1 FOREIGN DATA WRAPPER mysql OPTIONS (Host 'localhost', Port 3306); + +USE mysql; + +LOCK TABLES `column_stats` WRITE; +/*!40000 ALTER TABLE `column_stats` DISABLE KEYS */; +REPLACE INTO `column_stats` VALUES ('mysql','tz','Time_zone_id','1','5',0.0000,4.0000,98.2500,0,NULL,NULL); +/*!40000 ALTER TABLE `column_stats` ENABLE KEYS */; +UNLOCK TABLES; + +LOCK TABLES `index_stats` WRITE; +/*!40000 ALTER TABLE `index_stats` DISABLE KEYS */; +REPLACE INTO `index_stats` VALUES ('mysql','tz','PRIMARY',1,98.2500); +/*!40000 ALTER TABLE 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21:00:00','n_leaf_pages',1,NULL,'Number of leaf pages in the index'),('mysql','tz','PRIMARY','2019-12-31 21:00:00','size',1,NULL,'Number of pages in the index'); +/*!40000 ALTER TABLE `innodb_index_stats` ENABLE KEYS */; +UNLOCK TABLES; + +LOCK TABLES `innodb_table_stats` WRITE; +/*!40000 ALTER TABLE `innodb_table_stats` DISABLE KEYS */; +INSERT IGNORE INTO `innodb_table_stats` VALUES ('mysql','tz','2019-12-31 21:00:00',393,1,0); +/*!40000 ALTER TABLE `innodb_table_stats` ENABLE KEYS */; +UNLOCK TABLES; + +USE mysql; + +LOCK TABLES `time_zone` WRITE; +/*!40000 ALTER TABLE `time_zone` DISABLE KEYS */; +INSERT IGNORE INTO `time_zone` VALUES (1,'N'),(2,'N'),(3,'N'),(4,'Y'),(5,'N'); +/*!40000 ALTER TABLE `time_zone` ENABLE KEYS */; +UNLOCK TABLES; + +LOCK TABLES `time_zone_name` WRITE; +/*!40000 ALTER TABLE `time_zone_name` DISABLE KEYS */; +INSERT IGNORE INTO `time_zone_name` VALUES ('Europe/Moscow',3),('Japan',5),('leap/Europe/Moscow',4),('MET',1),('Universal',2),('UTC',2); +/*!40000 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+/*!40000 ALTER TABLE `time_zone_transition` ENABLE KEYS */; +UNLOCK TABLES; + +LOCK TABLES `time_zone_transition_type` WRITE; +/*!40000 ALTER TABLE `time_zone_transition_type` DISABLE KEYS */; +INSERT IGNORE INTO `time_zone_transition_type` VALUES (1,0,7200,1,'MEST'),(1,1,3600,0,'MET'),(1,2,7200,1,'MEST'),(1,3,3600,0,'MET'),(2,0,0,0,'UTC'),(3,0,9000,0,'MMT'),(3,1,12648,1,'MST'),(3,2,9048,0,'MMT'),(3,3,16248,1,'MDST'),(3,4,10800,0,'MSK'),(3,5,14400,1,'MSD'),(3,6,18000,1,'MSD'),(3,7,7200,0,'EET'),(3,8,10800,0,'MSK'),(3,9,14400,1,'MSD'),(3,10,10800,1,'EEST'),(3,11,7200,0,'EET'),(4,0,9000,0,'MMT'),(4,1,12648,1,'MST'),(4,2,9048,0,'MMT'),(4,3,16248,1,'MDST'),(4,4,10800,0,'MSK'),(4,5,14400,1,'MSD'),(4,6,18000,1,'MSD'),(4,7,7200,0,'EET'),(4,8,10800,0,'MSK'),(4,9,14400,1,'MSD'),(4,10,10800,1,'EEST'),(4,11,7200,0,'EET'),(5,0,32400,0,'CJT'),(5,1,32400,0,'JST'); +/*!40000 ALTER TABLE `time_zone_transition_type` ENABLE KEYS */; +UNLOCK TABLES; +/*!40103 SET TIME_ZONE=@OLD_TIME_ZONE */; + +/*!40101 SET SQL_MODE=@OLD_SQL_MODE */; +/*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */; +/*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */; +/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */; +/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */; +/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */; +/*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */; + +CHECKSUM TABLE mysql.user, mysql.roles_mapping, mysql.time_zone_transition, mysql.plugin, +mysql.servers, mysql.func, mysql.innodb_table_stats, mysql.table_stats; +Table Checksum +mysql.user 205632094 +mysql.roles_mapping 3150178430 +mysql.time_zone_transition 3895294076 +mysql.plugin 1520695737 +mysql.servers 2783974349 +mysql.func 3241572444 +mysql.innodb_table_stats 347867921 +mysql.table_stats 664320059 +# Opps.... +CREATE USER mariadb_test_restore IDENTIFIED BY 'getitback'; +GRANT ALL ON *.* TO mariadb_test_restore WITH GRANT OPTION; +GRANT PROXY ON ''@'%' TO mariadb_test_restore WITH GRANT OPTION; +GRANT SUPER, CREATE USER /*M!100502 ,FEDERATED ADMIN */ ON *.* TO mariadb_test_restore WITH GRANT OPTION; +drop user USER; +delete from mysql.table_stats; +delete from mysql.innodb_table_stats; +delete from mysql.time_zone_transition; +delete from mysql.time_zone_transition_type; +delete from mysql.time_zone; +delete from mysql.time_zone_name; +delete from mysql.time_zone_leap_second; +DROP FUNCTION IF EXISTS metaphon; +DROP SERVER s1; +set time_zone= @@global.time_zone; +# Restore from mysqldump +DROP USER mariadb_test_restore; +CHECKSUM TABLE mysql.user, mysql.roles_mapping, mysql.time_zone_transition, mysql.plugin, +mysql.servers, mysql.func, mysql.innodb_table_stats, mysql.table_stats; +Table Checksum +mysql.user 205632094 +mysql.roles_mapping 3150178430 +mysql.time_zone_transition 3895294076 +mysql.plugin 1520695737 +mysql.servers 2783974349 +mysql.func 3241572444 +mysql.innodb_table_stats 347867921 +mysql.table_stats 664320059 +DROP FUNCTION IF EXISTS metaphon; +DROP SERVER s1; +DELETE FROM mysql.column_stats WHERE db_name='mysql' and table_name in ('tz', 'gtid_slave_pos'); +DELETE FROM mysql.index_stats WHERE db_name='mysql' and table_name in ('tz', 'gtid_slave_pos'); +DELETE FROM mysql.table_stats WHERE db_name='mysql' and table_name in ('tz', 'gtid_slave_pos'); +DELETE FROM mysql.innodb_index_stats WHERE database_name='mysql' and table_name in ('tz','gtid_slave_pos'); +DELETE FROM mysql.innodb_table_stats WHERE database_name='mysql' and table_name in ('tz','gtid_slave_pos'); +drop table mysql.tz; +DROP ROLE role_2; +DROP ROLE role_1; +drop user USER; +uninstall plugin unix_socket; +insert into mysql.user select * from backup_users; +flush privileges; +drop table backup_users; diff --git a/mysql-test/t/mysqldump-system.test b/mysql-test/t/mysqldump-system.test new file mode 100644 index 00000000000..1fc0a45b3dc --- /dev/null +++ b/mysql-test/t/mysqldump-system.test @@ -0,0 +1,152 @@ +--source include/not_embedded.inc +--source include/have_innodb.inc +--source include/have_udf.inc +--source include/platform.inc + +--echo # +--echo # MDEV-23630: mysqldump to logically dump system tables +--echo # +--echo # + +# might need fixing in 10.4 to different mechanism +create table backup_users like mysql.user; +insert into backup_users select * from mysql.user where host not in ('localhost'); +delete from mysql.user where host not in ('localhost'); +flush privileges; + +create user USER; + +if (`SELECT CONVERT(@@VERSION_COMPILE_OS USING latin1) NOT IN ('Win32', 'Win64', 'Windows')`) +{ +--eval install plugin /*M!100401 IF NOT EXISTS */ unix_socket soname '$AUTH_SOCKET_SO'; +alter user USER identified via unix_socket; +} + +# time zone data already loaded + +CREATE ROLE role_1; +CREATE ROLE role_2 WITH ADMIN role_1; + +GRANT SHOW DATABASES ON *.* TO role_1; +GRANT role_1 TO USER; +GRANT role_2 TO USER; +SET DEFAULT ROLE role_2 FOR USER; + +ALTER TABLE mysql.roles_mapping ORDER BY Host, User, Role; + +# innodb and EITS tables statistics +# +set @save_innodb_stats_persistent= @@innodb_stats_persistent; +create table mysql.tz like mysql.time_zone_transition; +alter table mysql.tz engine=innodb; +insert into mysql.tz select * from mysql.time_zone_transition; +set global innodb_stats_persistent=1; +ANALYZE TABLE mysql.tz PERSISTENT FOR ALL; +# for predictable output in tests +delete from mysql.index_stats where prefix_arity!=1; +delete from mysql.column_stats where column_name!='Time_zone_id'; +set time_zone="+03:00"; +update mysql.innodb_index_stats set last_update="2020-01-01" where database_name="mysql" and table_name="tz"; +update mysql.innodb_table_stats set last_update="2020-01-01" where database_name="mysql" and table_name="tz"; +set global innodb_stats_persistent= @save_innodb_stats_persistent; +alter table mysql.time_zone_name ORDER BY Name; + +CREATE SERVER s1 FOREIGN DATA WRAPPER mysql OPTIONS(Host 'localhost'); + +--replace_result $UDF_EXAMPLE_SO UDF_EXAMPLE_LIB +eval CREATE FUNCTION metaphon RETURNS STRING SONAME "$UDF_EXAMPLE_SO"; + + +# +# Lets actually do some tests. +# + +--echo # +--echo # mysqldump of system tables with --system=all +--echo # + +--replace_result $UDF_EXAMPLE_SO UDF_EXAMPLE_LIB +--exec $MYSQL_DUMP --skip-comments --system=all + + +--echo # +--echo # mysqldump of system tables with --system=all --replace +--echo # + +--replace_result $UDF_EXAMPLE_SO UDF_EXAMPLE_LIB +--exec $MYSQL_DUMP --skip-comments --system=all --replace + + +# save this for restore +--exec $MYSQL_DUMP --system=users,servers,stats,timezones,udfs --replace > $MYSQLTEST_VARDIR/tmp/dump1.sql + +--echo # +--echo # mysqldump of system tables with --system=all --insert-ignore +--echo # + +--replace_result $UDF_EXAMPLE_SO UDF_EXAMPLE_LIB +--exec $MYSQL_DUMP --skip-comments --system=all --insert-ignore + + +CHECKSUM TABLE mysql.user, mysql.roles_mapping, mysql.time_zone_transition, mysql.plugin, + mysql.servers, mysql.func, mysql.innodb_table_stats, mysql.table_stats; + +--echo # Opps.... + +CREATE USER mariadb_test_restore IDENTIFIED BY 'getitback'; +GRANT ALL ON *.* TO mariadb_test_restore WITH GRANT OPTION; +GRANT PROXY ON ''@'%' TO mariadb_test_restore WITH GRANT OPTION; +GRANT SUPER, CREATE USER /*M!100502 ,FEDERATED ADMIN */ ON *.* TO mariadb_test_restore WITH GRANT OPTION; + +drop user USER; +delete from mysql.table_stats; +delete from mysql.innodb_table_stats; +delete from mysql.time_zone_transition; +delete from mysql.time_zone_transition_type; +delete from mysql.time_zone; +delete from mysql.time_zone_name; +delete from mysql.time_zone_leap_second; +DROP FUNCTION IF EXISTS metaphon; +DROP SERVER s1; +set time_zone= @@global.time_zone; + +--echo # Restore from mysqldump +--exec $MYSQL --user mariadb_test_restore --password=getitback --show-warnings < $MYSQLTEST_VARDIR/tmp/dump1.sql +#--remove_file $MYSQLTEST_VARDIR/tmp/dump1.sql; + +DROP USER mariadb_test_restore; + +# successful restore? + +CHECKSUM TABLE mysql.user, mysql.roles_mapping, mysql.time_zone_transition, mysql.plugin, + mysql.servers, mysql.func, mysql.innodb_table_stats, mysql.table_stats; + +# +# Cleanup +# + +DROP FUNCTION IF EXISTS metaphon; + +DROP SERVER s1; + +# EITS && innodb stats +DELETE FROM mysql.column_stats WHERE db_name='mysql' and table_name in ('tz', 'gtid_slave_pos'); +DELETE FROM mysql.index_stats WHERE db_name='mysql' and table_name in ('tz', 'gtid_slave_pos'); +DELETE FROM mysql.table_stats WHERE db_name='mysql' and table_name in ('tz', 'gtid_slave_pos'); +DELETE FROM mysql.innodb_index_stats WHERE database_name='mysql' and table_name in ('tz','gtid_slave_pos'); +DELETE FROM mysql.innodb_table_stats WHERE database_name='mysql' and table_name in ('tz','gtid_slave_pos'); +drop table mysql.tz; + +DROP ROLE role_2; +DROP ROLE role_1; + +drop user USER; + +if (`SELECT CONVERT(@@VERSION_COMPILE_OS USING latin1) NOT IN ('Win32', 'Win64', 'Windows')`) +{ +uninstall plugin unix_socket; +} + +insert into mysql.user select * from backup_users; +flush privileges; +drop table backup_users; |