openGauss=# SELECT current_user; current_user--- omm(1 row)备注:current_user是用于权限检查的用户标识。通常,他表示会话用户,但是可以通过SET ROLE改变他。在函数执行的过程中随着属性SECURITY DEFINER的改变,其值也会改变。---2、definer_current_user描述:当前执行环境下的用户名。返回值类型:name示例:openGau...
current_user --- jack (1 row)jack_test=> select user; current_user --- jack (1 row)jack_test=>5. 为用户jack创建一个模式jack1 create schema 模式名 authorization 用户名; create schema jack1 authorization jack;jack_test=> create schema jack1 authorization...
source)To_char(source)USERCURRENT_USERGetdate()Now()ISNULL(expr, replace)COALESCE(expr, replace)NVL(expr, expr)COALESCE(expr, expr)SYSDATE()CURRENT_TIMESTAMP()SYSTIMESTAMPCURRENT_TIMESTAMP
1 pghost2 192.168.56.20 1 /app/ogdata/data/cm/cm_server Primary 2 pghost3 192.168.56.30 2 /app/ogdata/data/cm/cm_server Standby [ Cluster State ]cluster_state : Normal redistributing : No balanced : Yes current_az : AZ_ALL [ Datanode State ...
openGauss=# CREATE ROW LEVEL SECURITY POLICY rls_select ON pat_info FOR select USING(doctor=current_user); CREATE ROW LEVEL SECURITY POLICY 步骤3:打开信息表pat_info上的行级访问控制开关 openGauss=# ALTER TABLE pat_info ENABLE ROW LEVEL SECURITY; ALTER TABLE 步骤4:将信息表pat_info的查看权限赋予...
ereport(ERROR, (errcode(ERRCODE_OBJECT_IN_USE), errmsg("current user cannot be dropped"))); if (roleid == GetOuterUserId()) ereport(ERROR, (errcode(ERRCODE_OBJECT_IN_USE), errmsg("current user cannot be dropped"))); if (roleid == GetSessionUserId()) ...
\c 或 select current_user;退出：\q 查看数据库、所有者、字符集（相当于mysql的show databases）：\l 切换数据库（相当于mysql的use dbname）：\c database_openGauss 列举表（相当于mysql的show tables）：\dt 查看表结构（相当于mysql的desc tblname）：\d users 查看索引：\di 查看当前数据存储目录：show ...
| login db(postgres) success,the current user is:henley1, SSL=on | dn\_6001 | 140489724458752@742471317817769 | 5432 | 35400 2023-07-12 06:01:57-04 | dml\_action\_select | ok | 16387 | henley1 | postgres | gsql@192.168.178.130 | pg\_settings ...
openGauss=# CREATE ROW LEVEL SECURITY POLICY rls_select ON pat_info FOR select USING(doctor=current_user); CREATE ROW LEVEL SECURITY POLICY 步骤3:打开信息表pat_info上的行级访问控制开关openGauss=# ALTER TABLE pat_info ENABLE ROW LEVEL SECURITY;ALTER TABLE ...
#步骤2:创建行级访问控制策略,使得医生只能查看属于自己的病人信息:[omm@home ~]$ gsql -d testdb -c"CREATE ROW LEVEL SECURITY POLICY rls_select ON test.pat_info FOR select USING(doctor=current_user)"CREATEROWLEVELSECURITYPOLICY #步骤3:打开信息表pat_info上的行级访问控制开关[omm@home ~]$ gsql...