Question

在Magento的销售订单管理页面中，我有时（但并非总是）在页面上收到错误，并在var/report中看到：

SQLSTATE [HY000]：常规错误：1111无效使用组功能

SELECT COUNT(DISTINCT main_table.entity_id) FROM `m_sales_flat_order_grid` AS `main_table`

INNER JOIN `m_sales_flat_order_item` 
ON `m_sales_flat_order_item`.order_id=`main_table`.entity_id

INNER JOIN `m_catalog_product_entity_varchar` 
ON (m_catalog_product_entity_varchar.entity_id = `m_sales_flat_order_item`.`product_id`) 
AND `m_catalog_product_entity_varchar`.attribute_id=163 
WHERE (`m_sales_flat_order_item`.parent_item_id IS NULL) 
AND ((group_concat(`m_catalog_product_entity_varchar`.value SEPARATOR ', ') like '%tenzen%'))

任何人都可以阐明为什么会发生这种情况以及如何解决这个问题？

Answer 1

查询的问题是group_concat()子句中的where。但是，对于此逻辑，您根本不需要group_concat()。

但是，您需要聚合以将给定实体的所有行组合在一起。这需要一个子查询，所以我建议将其重写为：

SELECT COUNT(*)
FROM (SELECT main_table.entity_id
      FROM `m_sales_flat_order_grid` AS `main_table` INNER JOIN 
           `m_sales_flat_order_item` 
           ON `m_sales_flat_order_item`.order_id = `main_table`.entity_id INNER JOIN 
           `m_catalog_product_entity_varchar` 
           ON m_catalog_product_entity_varchar.entity_id = `m_sales_flat_order_item`.`product_id` AND 
             `m_catalog_product_entity_varchar`.attribute_id = 163 
      WHERE `m_sales_flat_order_item`.parent_item_id IS NULL
      GROUP BY main_table.entity_id
      HAVING SUM(`m_catalog_product_entity_varchar`.value like '%tenzen%') > 0
     ) t

group_concat和SQLSTATE [HY000]：常规错误：1111无效使用组功能

1 个答案: