很简单，试试看…

 select 'ALTER TABLE ' || table_name || ' OWNER TO myuser;' from information_schema.tables where table_schema = 'public';

http://archives.postgresql.org/pgsql-bugs/2007-10/msg00234.php也是一个很好的快速解决方案，适用于一个数据库中的多个模式:

表

SELECT 'ALTER TABLE '|| schemaname || '."' || tablename ||'" OWNER TO my_new_owner;'
FROM pg_tables WHERE NOT schemaname IN ('pg_catalog', 'information_schema')
ORDER BY schemaname, tablename;

序列

SELECT 'ALTER SEQUENCE '|| sequence_schema || '."' || sequence_name ||'" OWNER TO my_new_owner;'
FROM information_schema.sequences WHERE NOT sequence_schema IN ('pg_catalog', 'information_schema')
ORDER BY sequence_schema, sequence_name;

的观点

SELECT 'ALTER VIEW '|| table_schema || '."' || table_name ||'" OWNER TO my_new_owner;'
FROM information_schema.views WHERE NOT table_schema IN ('pg_catalog', 'information_schema')
ORDER BY table_schema, table_name;

物化视图

基于这个答案

SELECT 'ALTER TABLE '|| oid::regclass::text ||' OWNER TO my_new_owner;'
FROM pg_class WHERE relkind = 'm'
ORDER BY oid;

这将生成所有必需的ALTER TABLE / ALTER SEQUENCE / ALTER VIEW语句，复制这些语句并将它们粘贴回plsql以运行它们。

检查你在psql中的工作，执行以下操作:

\dt *.*
\ds *.*
\dv *.*

@Alex Soto的答案是正确的，@Yoav Aner上传的要点也有效，前提是在表/视图名称中没有特殊字符(在postgres中是合法的)。

你需要转义它们来工作，我已经上传了一个要点:https://gist.github.com/2911117

ansible非常简单。你也可以跳过obj_type来修改任何对象类型的所有权。

- name: Reassigner owner of all objects
  postgresql_owner:
    login_user: "{{ postgres_admin_username }}"
    login_unix_socket: "{{postgres_socket}}"
    db: "db-name"
    new_owner: "new-owner"
    reassign_owned_by: "old-owner"
    obj_type: "table"

以下是带有进一步信息的文档:https://docs.ansible.com/ansible/latest/collections/community/general/postgresql_owner_module.html

希望这能有所帮助。

如果当前所有者不是postgres，你可以使用这个:

REASSIGN OWNED BY old_role [, ...] TO new_role

但如果当前的所有者是postgres，你肯定会得到错误，所以你必须使用@dvanrensburg回答，但如果你想在相同的sql中执行命令，可以根据需要使用这些命令:

数据库

ALTER DATABASE target_database OWNER TO new_onwer;

表

DO
LANGUAGE plpgsql
$$
DECLARE
  stmt text;
BEGIN
  FOR stmt IN
    WITH temp as (
    SELECT 'ALTER TABLE '|| schemaname || '."' || tablename ||'" OWNER TO newuser' as command
    FROM pg_tables WHERE NOT schemaname IN ('pg_catalog', 'information_schema')
    ORDER BY schemaname, tablename )
    SELECT command from temp
  LOOP
    EXECUTE stmt;
  END LOOP;
END;
$$;

序列

DO
LANGUAGE plpgsql
$$
DECLARE
  stmt text;
BEGIN
  FOR stmt IN
    WITH temp as (
    SELECT 'ALTER SEQUENCE '|| sequence_schema || '."' || sequence_name ||'" OWNER TO newuser;' as command
    FROM information_schema.sequences WHERE NOT sequence_schema IN ('pg_catalog', 'information_schema')
    ORDER BY sequence_schema, sequence_name)
    select command from temp
  LOOP
    EXECUTE stmt;
  END LOOP;
END;
$$;

的观点

DO
LANGUAGE plpgsql
$$
DECLARE
  stmt text;
BEGIN
  FOR stmt IN
    WITH temp as (
    SELECT 'ALTER VIEW '|| table_schema || '."' || table_name ||'" OWNER TO newuser;' as command
    FROM information_schema.views WHERE NOT table_schema IN ('pg_catalog', 'information_schema')
    ORDER BY table_schema, table_name)
    select command from temp
  LOOP
    EXECUTE stmt;
  END LOOP;
END;
$$;

模式

DO
LANGUAGE plpgsql
$$
DECLARE
  stmt text;
BEGIN
  FOR stmt IN
    WITH schema_names as(
    SELECT distinct(schemaname) FROM pg_tables WHERE NOT schemaname IN ('pg_catalog', 'information_schema')
    ORDER BY schemaname)
    SELECT 'ALTER SCHEMA '|| schemaname ||' OWNER TO newuser;' as command
    FROM schema_names
  LOOP
    EXECUTE stmt;
  END LOOP;
END;
$$;

还要注意数据库中可能需要更改成员关系的函数和其他组件

函数和触发函数

    DO
    LANGUAGE plpgsql
    $$
    DECLARE
      stmt text;
    BEGIN
      FOR stmt IN
        WITH temp as(
        SELECT 'alter function '||nsp.nspname||'.'||p.proname||'('||pg_get_function_identity_arguments(p.oid)||') owner to newuser;' as command
        FROM pg_proc p
        JOIN pg_namespace nsp ON p.pronamespace = nsp.oid
        WHERE NOT  nsp.nspname IN ('pg_catalog', 'information_schema'))
        SELECT command FROM temp
      LOOP
        EXECUTE stmt;
      END LOOP;
    END;
    $$;

与@AlexSoto的函数方法相同:

IFS=$'\n'  
for fnc in `psql -qAt -c "SELECT  '\"' || p.proname||'\"' || '(' || pg_catalog.pg_get_function_identity_arguments(p.oid) || ')' FROM pg_catalog.pg_namespace n JOIN pg_catalog.pg_proc p ON p.pronamespace = n.oid WHERE n.nspname = 'public';" YOUR_DB` ; do  psql -c "alter function $fnc owner to NEW_OWNER" YOUR_DB; done