mysql - 查询中的 Pentaho 报表设计器错误

Question

我正在尝试在 Pentaho Report Designer 中创建我的第一个报告。我创建了一个 JDBC 数据源并添加了一个查询：

SELECT a.* 
FROM   (SELECT Sum(loan_receivable_detail.interest) AS interest, 
               loan_account_opening_id 
        FROM   loan_receivable_detail 
        GROUP  BY loan_account_opening_id) AS a 

但是，当我保存查询时，它会更改为：

SELECT
     a.*,
     sum(loan_receivable_detail.interest) AS interest,
     loan_account_opening_id AS interest
FROM
     `loan_receivable_detail`
GROUP BY
     loan_account_opening_id,
     as,
     a

我的查询中是否有任何问题导致它像这样改变？该语法在其他查询分析器中运行良好......

Answer 1

您的查询应该是有效的，但 Pentaho 似乎在解析它时遇到了问题。

你可以尝试使用

SELECT SUM(loan_receivable_detail.interest) AS interest, 
               loan_account_opening_id 
        FROM   loan_receivable_detail 
        GROUP  BY loan_account_opening_id

它给出了与您的查询相同的结果，但没有子查询（希望它会让 Pentaho 高兴）