This could result in a significant decrease in performance should there be a large number of duplicate key values.
如果有大量重复键值，这可能会导致性能大幅降低。
I've locked myself out. Could I have a duplicate key?
我把自己锁在门外了。可以给我一把备用钥匙吗？
The errors tag shows a list of errors, if any occurred (i. e. duplicate key error, etc. ).
如果发生了错误（例如，重复键错误等等），错误标签会显示出错误列表。
For example, the event is raised if an attempted update set a duplicate key, or if the original and update did not have UID values that align.
例如，如果尝试进行的更新设置了重复的键，或原始和更新没有对齐的uid值，都会引发事件。
For example, the event is raised if an attempted update set a duplicate key, or if the original and update did not have UID values that align.
例如，如果尝试进行的更新设置了重复的键，或原始和更新没有对齐的uid值，都会引发事件。
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