Thirunarayanan Balathandayuthapani 223eb5fb9a Bug #20989615 INNODB AUTO_INCREMENT PRODUCES SAME VALUE TWICE ...

Problem:
=======
Autoincrement value gives duplicate values because of the following reasons.

(1) In InnoDB handler function, current autoincrement value is not changed
based on newly set auto_increment_increment or auto_increment_offset variable.

(2) Handler function does the rounding logic and changes the current
autoincrement value and InnoDB doesn't aware of the change in current
autoincrement value.

Solution:
========
Fix the problem(1), InnoDB always respect the auto_increment_increment
and auto_increment_offset value in case of current autoincrement value.
By fixing the problem (2), handler layer won't change any current
autoincrement value.

Reviewed-by: Jimmy Yang <jimmy.yang@oracle.com>
RB: 13748

2017-04-24 17:45:09 +03:00

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