PostgreSQL，使用select插入在冲突do更新时失败

我试图解决在pg12中插入pk失败时进行更新的问题。我认为，这很容易，只是在查询中出现冲突。。。但是没有。 运行查询时，出现以下错误：

ERROR:  column excluded.fec does not exist
LINE 25: ...ON CONFLICT (address) DO UPDATE SET saldo.fecha = EXCLUDED.f...
                                                              ^
SQL state: 42703
Character: 1052

下表：

CREATE UNLOGGED TABLE wallet.saldo
(
    address character varying(42) COLLATE pg_catalog."default" NOT NULL,
    fecha timestamp without time zone NOT NULL,
    saldo numeric(60,20) NOT NULL,
    CONSTRAINT wallet_saldo_address_pk PRIMARY KEY (address)
)

查询：

INSERT INTO wallet.saldo(address, fecha, saldo)

select  '0xaa515035c04aab' as token_address,  max(block_timestamp)::date as fec, sum(importe) as imp 
from (

    SELECT 
        tt.block_timestamp, tt.value::numeric(60,20) / ('1' || left('0000000000000000000000000', t.decimals))::numeric * -1 as importe
    FROM raw.token_transfers tt inner join raw.tokens t on t.address = tt.token_address
    where to_address = '0xaa515035c04aab'
    and tt.block_timestamp between '20201009 00:00:00' and '20201009 23:59:59.99999'

    union

    SELECT 
        tt.block_timestamp, (tt.value::numeric(60,20) / ('1' || left('0000000000000000000000000', t.decimals))::numeric) as importe
    FROM raw.token_transfers tt inner join raw.tokens t on t.address = tt.token_address
    where from_address = '0xaa515035c04aab'
    and tt.block_timestamp between '20201009 00:00:00' and '20201009 23:59:59.99999'

) as det

ON CONFLICT (address) DO UPDATE SET saldo.fecha = EXCLUDED.fec,  saldo.saldo = EXCLUDED.imp

;

select DET工作正常，返回正确的值，如果尝试用DET（别名）替换EXCLUDED，则错误相同

---

请问，我做错了什么？

排除总是指目标表的列名，而不是源。您也不能使用分配左侧的目标表名称

所以你需要

SET fecha = EXCLUDED.fecha,  
    saldo = EXCLUDED.saldo

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错误消息非常清楚：“列fec不存在”，也不存在imp列是的，谢谢，你说得对，我复制了一个版本的查询和previos的结果。我编辑了这个问题，非常感谢！对我刚刚删除了表名集。