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I had a table field with datatype as 'smallint' (primary key) and it was auto_increment. It was working fine.
After a long time, I got the error duplicate entry '32676' for key 1. So I updated that field from smallint(6) to int(11). Now I got the error duplicate entry '0' for key 1.
I am using InnoDB engine.
What specifically can I do to resolve this?
That’s because probably table counter was reset to zero, so next item is added with 0, an existing key!!
You could try to use