使用子查询更新postgres中的表行 - updating table rows in postgres using subquery

问题：

Using postgres 8.4, My goal is to update existing table: 使用postgres 8.4，我的目标是更新现有表：

CREATE TABLE public.dummy
(
  address_id SERIAL,
  addr1 character(40),
  addr2 character(40),
  city character(25),
  state character(2),
  zip character(5),
  customer boolean,
  supplier boolean,
  partner boolean

)
WITH (
  OIDS=FALSE
);

Initially i tested my query using insert statement: 最初我使用插入语句测试了我的查询：

insert into address customer,supplier,partner
SELECT  
    case when cust.addr1 is not null then TRUE else FALSE end customer, 
    case when suppl.addr1 is not null then TRUE else FALSE end supplier,
    case when partn.addr1 is not null then TRUE else FALSE end partner
from (
    SELECT *
        from address) pa
    left outer join cust_original cust
        on (pa.addr1=cust.addr1 and pa.addr2=cust.addr2 and pa.city=cust.city 
            and pa.state=cust.state and substring(cust.zip,1,5) = pa.zip  )
    left outer join supp_original suppl 
        on (pa.addr1=suppl.addr1 and pa.addr2=suppl.addr2 and pa.city=suppl.city 
                and pa.state=suppl.state and pa.zip = substring(suppl.zip,1,5))
    left outer join partner_original partn
        on (pa.addr1=partn.addr1 and pa.addr2=partn.addr2 and pa.city=partn.city
                  and pa.state=partn.state and pa.zip = substring(partn.zip,1,5) )
where pa.address_id = address_id

being Newbie I'm failing converting to update statement ie., updating existing rows with values returned by select statement. 作为新手，我无法转换为更新语句，即用select语句返回的值更新现有行。 Any help is highly appreciated. 非常感谢您的帮助。

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解决方案：

参考一： https://stackoom.com/question/QFd4
参考二： updating table rows in postgres using subquery