J. Nick Koston e7d982ee11
Improve db performance of state change events and reduce overall db size (#36883)
* Add old_state_id to states, remove old/new state data from events since it can now be found by a join

* remove state lookup on restart

* Ensure old_state is set for exisitng states
2020-06-17 22:26:41 -05:00
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