Postgresql为什么说“架构不存在”

Question

我该如何得到这个查询的工作？

SELECT weather.id, cities.name, weather.date, weather.degree 
FROM weather JOIN weather.city_id ON cities.id 
WHERE weather.date = '2011-04-30'; 

错误：架构“天气”不存在。

天气不是模式，它是一张桌子！

Answer 1

也许是：

SELECT weather.id, cities.name, weather.date, weather.degree 
FROM weather JOIN cities ON (weather.city_id = cities.id) 
WHERE weather.date = '2011-04-30'; 

Postgres的抱怨联接上weather.city_id这被解释为在模式“天气”

称为“city_id”表/图