PostgreSQL创建数据库、数据库管理员用户、该库的只读用户

1.创建用户：

create user pgdbAdmin with password "Pgdb_15432";
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2.创建数据库：

create database pgdb owner pgdbAdmin;
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3.创建SCHEMA；

create schema pgdbAdmin;
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4.赋予数据库管理员用户权限：

grant all privileges on database pgdb to pgdbAdmin;
grant usage on schema public,pgdbAdmin to pgdbAdmin;
grant all privileges on all tables in schema public,pgdbAdmin to pgdbAdmin;
grant all privileges on all sequences in schema public,pgdbAdmin to pgdbAdmin;
grant select,insert,update,delete on all tables in schema public,pgdbAdmin to pgdbAdmin;
grant all on schema public,pgdbAdmin to pgdbAdmin;
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5.赋予数据库其他用户权限(只读)：

create user pgdbRead with password "Pgdb_15432" 
alter user pgdbRead set default_transaction_read_only = on;
grant CONNECT ON DATABASE pgdb to pgdbRead;
grant USAGE ON SCHEMA public,pgdbAdmin TO pgdbRead;
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6.赋予schema下所有表的只读权限

grant SELECT ON all tables in schema public,pgdbAdmin to pgdbRead;
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7.修改用户属性，继承该schema下的只读权限

alter default privileges in schema public,pgdbAdmin grant select on tables to pgdbRead;
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8.修改默认的SEARCH_PATH：

alter role pgdbRead set search_path = "$user",pgdbAdmin,public;
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