[英]Postgres “missing FROM-clause entry” error on query with WITH clause
I am trying to use this query in Postgres 9.1.3: 我试图在Postgres 9.1.3中使用此查询:
WITH stops AS (
SELECT citation_id,
rank() OVER (ORDER BY offense_timestamp,
defendant_dl,
offense_street_number,
offense_street_name) AS stop
FROM consistent.master
WHERE citing_jurisdiction=1
)
UPDATE consistent.master
SET arrest_id = stops.stop
WHERE citing_jurisdiction=1
AND stops.citation_id = consistent.master.citation_id;
I get this error: 我收到此错误:
ERROR: missing FROM-clause entry for table "stops"
LINE 12: SET arrest_id = stops.stop
^
********** Error **********
ERROR: missing FROM-clause entry for table "stops"
SQL state: 42P01
Character: 280
I'm really confused. 我真的很困惑。 The WITH clause appears correct per Postgres documentation.
根据Postgres文档,WITH子句显示正确。 If I separately run the query in the WITH clause, I get correct results.
如果我在WITH子句中单独运行查询,我会得到正确的结果。
From the fine manual : 从精细手册 :
There are two ways to modify a table using information contained in other tables in the database: using sub-selects, or specifying additional tables in the
FROM
clause.有两种方法可以使用数据库中其他表中包含的信息来修改表:使用子选择,或在
FROM
子句中指定其他表。
So you just need a FROM clause: 所以你只需要一个FROM子句:
WITH stops AS (
-- ...
)
UPDATE consistent.master
SET arrest_id = stops.stop
FROM stops -- <----------------------------- You missed this
WHERE citing_jurisdiction=1
AND stops.citation_id = consistent.master.citation_id;
The error message even says as much: 错误信息甚至说得多:
ERROR: missing FROM-clause entry for table "stops"
错误:缺少FROM-clause条目表“停止”
This can also happen if you mistype a table name. 如果您错误输入表名,也会发生这种情况。 For example:
例如:
UPDATE profiles SET name = ( profile.first_name ) WHERE id = 1
Instead of profiles
i incorrectly used profile
!! 而不是
profiles
我错误地使用了profile
This would work: 这可行:
UPDATE profiles SET name = ( profiles.first_name ) WHERE id = 1
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