0

我正在尝试将来自 4 个不同表的 4 列的总和插入到单独的表的（命名为bugs）触发器中，如下所示：

SELECT 
    uat_reopened_stats.release_name,
    (uat_reopened_stats.rate_bugs + qa_reopened_stats.rate_bugs + closed_reopened_stats.rate_bugs + done_reopened_stats.rate_bugs)
INTO @releasename, @bugstotalreopenrate  
FROM qa_reopened_stats
JOIN uat_reopened_stats 
    ON qa_reopened_stats.release_name = uat_reopened_stats.release_name
JOIN closed_reopened_stats 
    ON closed_reopened_stats.release_name = uat_reopened_stats.release_name
JOIN done_reopened_stats 
    ON done_reopened_stats.release_name = uat_reopened_stats.release_name;

INSERT INTO release_stats (release_name, bugs_total_reopen_rate)
VALUES (@releasename, @bugstotalreopenrate)
ON DUPLICATE KEY UPDATE 
    release_name=@releasename,
    bugs_total_reopen_rate=@bugstotalreopenrate;
END

但是，当触发器被执行时（并且release_stats事先让表为空，我最终得到了 11（！）行！

MySQL [jira_statistics]> select * from release_stats;
+--------------+------------------------+
| release_name | bugs_total_reopen_rate |
+--------------+------------------------+
| 2.3.0        | 9.090909004211426      |
| 2.3.0        | 9.090909004211426      |
| 2.3.0        | 9.090909004211426      |
| 2.3.0        | 9.090909004211426      |
| 2.3.0        | 9.090909004211426      |
| 2.3.0        | 9.090909004211426      |
| 2.3.0        | 9.090909004211426      |
| 2.3.0        | 9.090909004211426      |
| 2.3.0        | 9.090909004211426      |
| 2.3.0        | 9.090909004211426      |
| 2.3.0        | 9.090909004211426      |
+--------------+------------------------+

为什么会这样？

4

1 回答 1

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由于某种原因，release_name在表上设置为主键后问题就消失了release_stats。

于 2019-02-18T17:59:37.863 回答