Question

SELECT * FROM
(SELECT post.* FROM post ORDER BY post.timestamp DESC) as post
GROUP BY post.topic_id
ORDER BY post.timestamp DESC, post.position
LIMIT 15

Phalcon在尝试执行上述查询时抛出以下错误。查询本身在默认sql上运行正常。

Syntax error, unexpected token (, near to ' SELECT post.* FROM post ORDER BY post.timestamp DESC ) as post GROUP BY post.topic_id ORDER BY post.timestamp DESC, post.position LIMIT 15', when parsing: SELECT * FROM ( SELECT post.* FROM post ORDER BY post.timestamp DESC ) as post GROUP BY post.topic_id ORDER BY post.timestamp DESC, post.position LIMIT 15 (162)

使用以下PHP代码（用于测试）：

$sql = <<< QUERY
    *query*
QUERY;

$query = $this->modelsManager->createQuery($sql);
$result = $query->execute();

感谢您的帮助。

Answer 1

创建视图，保留已经反向排序的虚拟表：

创建视图v_latest_posts AS SELECT * FROM post ORDER BY timestamp DESC
使用select中的视图：

SELECT * FROM v_latest_posts GROUP BY topic_id ORDER BY时间戳DESC，位置ASC 限制15

PhalconPHP无法解析我的查询

1 个答案: