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How to solve Duplicate entry 16777215 for key PRIMARY'

An error was reported directly when the customer forum posted the message: Duplicate entry 16777215 for key PRIMARY. After investigation, it was found that the database field had reached the maximum value of the set type. Friends in need can refer to the following:

Be careful to back up the database first to avoid unnecessary losses.

1. Error prompt:

(1062) Duplicate entry '16777215' for key 'PRIMARY' INSERT INTO common_member_action_log SET `uid`='1243282' , `action`='0' , `dateline`='1586228418'

2. Reason for the error:

The tid field is of type MEDIUMINT, and the maximum number is 17777215.

3. Solution:

Change the corresponding MEDIUMINT to int(11).

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