SqlExceptionHelper - 在此 ResultSet 中找不到列名 ...答案

【问题标题】：SqlExceptionHelper - The column name ... was not found in this ResultSetSqlExceptionHelper - 在此 ResultSet 中找不到列名 ...
【发布时间】：2021-03-02 16:19:10
【问题描述】：

这是查询：

UPDATE einvoice_message AS e1 
  SET message = null 
FROM (
  SELECT * 
  FROM einvoice_message 
  where created < :created 
  ORDER BY :created LIMIT :limit 
  FOR UPDATE SKIP LOCKED
) AS e2 
WHERE e1.einvoice_message_id = e2.einvoice_message_id 
RETURNING e1.einvoice_message_id

我收到SqlExceptionHelper - The column name created was not found in this ResultSet. 不明白为什么以及在哪里？需要帮助。

Java 代码：

@Query(value = "UPDATE einvoice_message AS e1 SET message = null FROM (SELECT * FROM einvoice_message 
where created < :created ORDER BY :created LIMIT :limit FOR UPDATE SKIP LOCKED) AS e2 WHERE 
e1.einvoice_message_id = e2.einvoice_message_id RETURNING e1.einvoice_message_id", nativeQuery = true)
List<EinvoiceMessage> deleteEinvoiceMessageContent(@Param("created") OffsetDateTime created, 
@Param("limit") int limit);

这是我的表 ddl：

create table einvoice_message
(
    einvoice_message_id bigserial not null
        constraint einvoice_message_pk
            primary key,
    message bytea not null,
    created timestamp default now() not null
);

将:created 变量更改为created 列并未解决问题。

【问题讨论】：

我猜你应该添加你正在使用的Java代码。
更新了我的帖子。

标签： java postgresql spring-data-jpa sqlexception

【解决方案1】：

问题在于 this 的返回值。 RETURNING e1.einvoice_message_id 将返回一个数字，而不是我提到的列表。正确答案是：

@Query(value = "UPDATE einvoice_message AS e1 SET message = null FROM (SELECT * FROM einvoice_message 
where created < :created ORDER BY :created LIMIT :limit FOR UPDATE SKIP LOCKED) AS e2 WHERE 
e1.einvoice_message_id = e2.einvoice_message_id RETURNING e1.einvoice_message_id", nativeQuery = true)
int deleteEinvoiceMessageContent(@Param("created") OffsetDateTime created, 
@Param("limit") int limit);

【讨论】：