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数据库的server是 15.6 版本的(下图一),最近使用 pg_upgrade 从 9.4 升级到了 15.6,现在是一个表有唯一索引,但是还是存在了相同的记录(下图二),这个记录的 update_time 字段来看是在升级之后插入的,请问有些什么排查和解决方法呢?谢谢
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可能9.4版本就已经存在这个问题, 只不过是在升级后触发了. 可能是比较难触发的bug, 我在8.4的版本也遇到过. 不太好排查, 你担心的话可以使用SQL, 关闭索引扫描, 看一看count distinct PK有没有异常记录, 先人为处理一下数据, 重建唯一索引
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可以参巧一下这个https://www.v2ex.com/t/921641#reply5
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数据库的server是 15.6 版本的(下图一),最近使用 pg_upgrade 从 9.4 升级到了 15.6,现在是一个表有唯一索引,但是还是存在了相同的记录(下图二),这个记录的 update_time 字段来看是在升级之后插入的,请问有些什么排查和解决方法呢?谢谢
The text was updated successfully, but these errors were encountered: