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Continue to ChatOn generating unique IDs using LAST_INSERT_ID() and other tools https://code.openark.org/blog/mysql/on-generating-unique-ids-using-last_insert_id-and-other-tools
On generating unique IDs using LAST_INSERT_ID() and other tools https://code.openark.org/blog/mysql/on-generating-unique-ids-using-last_insert_id-and-other-tools