1.. 只读账号授权

# 超级用户登录数据库
create user ro_user password 'readonly';

# 设置Postgres数据库为只读的transaction
alter user ro_user set default_transaction_read_only=on;

# 赋予用户权限，查看public模式下所有表：(新建表也会有只读权限)
grant usage on schema public to ro_user;
alter default privileges in schema public grant select on tables to ro_user;

# 赋予用户连接数据库权限
grant connect on database zhong to ro_user;
# 切换到指定数据库
\c zhong
# 赋予用户表、序列查看权限
grant usage on schema public to ro_user;
grant select on all sequences in schema public to ro_user;
grant select on all tables in schema public to ro_user;
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https://blog.csdn.net/weixin_38623994/article/details/106651022