pgsql 9.4修改数据库只读

先进入psql

切换到目标数据库

\c mydb

对于老表

grant usage on schema public to $read_only_user;
grant select on all tables in schema public to $read_only_user;

设置默认，对于未创建的表直接默认赋予只读权限

alter default privileges for user $db_owner in schema public grant select on tables to $read_only_user;

pubic这个schema是默认的schema

测试建表语句

create table t2 ( id serial, name varchar(64) );