postgresSQL bytea 轉text，select 、update方法

//篩選
select *,replace(encode(lanedata::bytea,‘escape’),‘inf’,‘1’)
from mtclanedata
where flag=3 AND laneindex =22936

//修改
update mtclanedata SET lanedata = cast(replace(encode(lanedata::bytea,‘escape’),‘inf’,‘1’) as bytea) where flag=3 AND laneindex =22936

說明：
cast (‘aaa’ as bytea) 將text轉爲bytea
encode(lanedata::bytea,‘escape’) 將bytea 轉爲text