Tor Didriksen 5539f5ccf6 Backport from next-mr-bugfixing of tor.didriksen@sun.com-20100106140051-3j2iuag63eltsr2e ...

Bug #50087 Interval arithmetic for Event_queue_element is not portable.

Subtraction of two unsigned months yielded a (very large) positive value.
Conversion of this to a signed value was not necessarily well defined.
              
Solution: do the subtraction on signed values.



mysql-test/r/events_scheduling.result:
  Add test case.
mysql-test/t/events_scheduling.test:
  Add test case.
sql/event_data_objects.cc:
  Convert month to signed before doing the subtraction.

2010-05-19 11:18:59 +02:00

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