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MDEV-23102 10.4 create mariadb.sys user on each update even is the user is not needed

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Check if we really need the mariadb.sys user
This commit is contained in:
Oleksandr Byelkin
2020-07-08 13:10:07 +02:00
parent b99fa1e767
commit 0d6d801e58
6 changed files with 862 additions and 4 deletions
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10
scripts/mysql_system_tables.sql
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@ -37,9 +37,15 @@ CREATE TABLE IF NOT EXISTS global_priv (Host char(60) binary DEFAULT '', User ch
set @had_sys_user= 0 <> (select count(*) from mysql.global_priv where Host="localhost" and User="mariadb.sys");
set @exists_user_view= EXISTS (SELECT * FROM information_schema.VIEWS WHERE TABLE_CATALOG = 'def' and TABLE_SCHEMA = 'mysql' and TABLE_NAME='user');
set @exists_user_view_by_root= EXISTS (SELECT * FROM information_schema.VIEWS WHERE TABLE_CATALOG = 'def' and TABLE_SCHEMA = 'mysql' and TABLE_NAME='user' and DEFINER = 'mariadb.sys@localhost');
set @need_sys_user_creation= (NOT @had_sys_user) AND (( NOT @exists_user_view) OR @exists_user_view_by_root);
CREATE TEMPORARY TABLE tmp_user_sys LIKE global_priv;
INSERT INTO tmp_user_sys (Host,User,Priv) VALUES ('localhost','mariadb.sys','{"access":0,"plugin":"mysql_native_password","authentication_string":"","account_locked":true,"password_last_changed":0}');
INSERT INTO global_priv SELECT * FROM tmp_user_sys WHERE NOT @had_sys_user;
INSERT INTO global_priv SELECT * FROM tmp_user_sys WHERE 0 <> @need_sys_user_creation;
DROP TABLE tmp_user_sys;
@ -111,7 +117,7 @@ CREATE TABLE IF NOT EXISTS tables_priv ( Host char(60) binary DEFAULT '' NOT NUL
CREATE TEMPORARY TABLE tmp_user_sys LIKE tables_priv;
INSERT INTO tmp_user_sys (Host,Db,User,Table_name,Grantor,Timestamp,Table_priv) VALUES ('localhost','mysql','mariadb.sys','global_priv','root@localhost','0','Select,Update,Delete');
INSERT INTO tables_priv SELECT * FROM tmp_user_sys WHERE NOT @had_sys_user;
INSERT INTO tables_priv SELECT * FROM tmp_user_sys WHERE 0 <> @need_sys_user_creation;
DROP TABLE tmp_user_sys;
CREATE TABLE IF NOT EXISTS columns_priv ( Host char(60) binary DEFAULT '' NOT NULL, Db char(64) binary DEFAULT '' NOT NULL, User char(80) binary DEFAULT '' NOT NULL, Table_name char(64) binary DEFAULT '' NOT NULL, Column_name char(64) binary DEFAULT '' NOT NULL, Timestamp timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, Column_priv set('Select','Insert','Update','References') COLLATE utf8_general_ci DEFAULT '' NOT NULL, PRIMARY KEY (Host,Db,User,Table_name,Column_name) ) engine=Aria transactional=1 CHARACTER SET utf8 COLLATE utf8_bin comment='Column privileges';