我必须是关系的所有者才能访问信息模式中与约束相关的数据吗?我已经测试了以下内容,看来我必须是所有者。
create schema rights_test;
create table rights_test.t1 (id int primary key);
create table rights_test.t2 (id int references rights_test.t1(id));
select
tc.constraint_name,
tc.constraint_schema || '.' || tc.table_name || '.' || kcu.column_name as physical_full_name,
tc.constraint_schema,
tc.table_name,
kcu.column_name,
ccu.table_name as foreign_table_name,
ccu.column_name as foreign_column_name,
tc.constraint_type
from
information_schema.table_constraints as tc
join information_schema.key_column_usage as kcu on (tc.constraint_name = kcu.constraint_name and tc.table_name = kcu.table_name)
join information_schema.constraint_column_usage as ccu on ccu.constraint_name = tc.constraint_name
where
constraint_type in ('PRIMARY KEY','FOREIGN KEY')
and tc.constraint_schema = 'rights_test'
/*
This will produce desired output:
t1_pkey;rights_test.t1.id;rights_test;t1;id;t1;id;PRIMARY KEY
t2_id_fkey;rights_test.t2.id;rights_test;t2;id;t1;id;FOREIGN KEY
*/
create user rights_test_role with password 'password';
grant all on rights_test.t1 to rights_test_role;
grant all on rights_test.t2 to rights_test_role;
/* Now login as rights_test_role and try the same constraint select.
For rights_test_role it returns nothing although I've added ALL privileges
*/
如果我不是关系的所有者,是否有其他方法如何获取相同的信息?
最佳答案
尝试使用这个.. 给出所有的约束名称和约束描述。
- 外键
- 检查
- 主键
- 独一无二
喜欢:
select conrelid::regclass AS table_from, conname, pg_get_constraintdef(c.oid)
from pg_constraint c
join pg_namespace n ON n.oid = c.connamespace
where contype in ('f', 'p','c','u') order by contype
关于postgresql - 列出 PostgreSQL 中具有不同所有者的所有表的约束,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/16830740/