InnoDB AUTO_INCREMENT_ID Values are Lost or Reset to Highest Un-used Value after Server Restart
Last updated on NOVEMBER 15, 2017
Applies to:MySQL Server - Version 5.1 and later
Information in this document applies to any platform.
After a server restart (or in some cases, after the table was un-used and closed) the AUTO_INCREMENT_ID may be reset to the maximum value currently stored in the table, forgetting about previously used values that have since been removed.
This is likely to occur and become a problem in situations where data is archive into another table or data source and removed from the table.
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