我有以下PostgreSQL查询...
WITH update_parts (id,id_finish)
AS (VALUES (1,42), (2,42), (3,30), (4,30))
UPDATE parts SET id = up.id, id_metal = up.id_metal
FROM update_parts up WHERE up.id = parts.id;
......我收到了错误......
列up.id_metal不存在LINE 1
我已经验证我已连接到正确的数据库，正确的表并且该列存在。我只是部分肯定我通过以下方式设置的权限...
GRANT ALL(id_metal) ON parts TO public;
...和...
GRANT ALL(id_metal) ON parts TO postgres;
我计划在找出问题后将权限限制为SELECT，UPDATE，DELETE和INSERT。为了澄清，它是“parts”表和“id_metal”列。
如何解决此错误并UPDATE行？
更新权限后，我不确定还需要考虑什么？
我使用以下查询来获取有关列的信息...
SELECT * FROM information_schema.columns
WHERE table_schema NOT IN ('pg_catalog', 'information_schema')
AND column_name='id_finish';
...返回......
数组（
[table_catalog] => [database name] [table_schema] => public [table_name] => parts [column_name] => id_metal [ordinal_position] => 7 [column_default] => [is_nullable] => YES [data_type] => bigint [character_maximum_length] => [character_octet_length] => [numeric_precision] => 64 [numeric_precision_radix] => 2 [numeric_scale] => 0 [datetime_precision] => [interval_type] => [interval_precision] => [character_set_catalog] => [character_set_schema] => [character_set_name] => [collation_catalog] => [collation_schema] => [collation_name] => [domain_catalog] => [domain_schema] => [domain_name] => [udt_catalog] => [database name] [udt_schema] => pg_catalog [udt_name] => int8 [scope_catalog] => [scope_schema] => [scope_name] => [maximum_cardinality] => [dtd_identifier] => 7 [is_self_referencing] => NO [is_identity] => NO [identity_generation] => [identity_start] => [identity_increment] => [identity_maximum] => [identity_minimum] => [identity_cycle] => [is_generated] => NEVER [generation_expression] => [is_updatable] => YES）
答案 0 :(得分：0)
你正在经历许多具有权限的箍，但问题是简单的语法：
WITH update_parts (id, id_finish) AS (
VALUES (1,42), (2,42), (3,30), (4,30)
)
UPDATE parts SET id_metal = up.id_finish
FROM update_parts up WHERE up.id = parts.id;
在您的CTE中，您可以定义列ID和 id_finish ，因此您的主查询应引用相同的 up.id_finish ，而不是零件表中的id_metal。
此外，使用parts.id的值更新update_parts.id是没有用的，因为根据定义它们是相同的：WHERE up.id = parts.id。