5 commits

Author	SHA1	Message	Date
Erik Johnston	2732be83d9	Shuffle operations so that locking upsert happens last in the txn. This ensures the lock is held for the least amount of time possible.	2015-04-27 13:22:30 +01:00
Erik Johnston	e4c4664d73	Handle the fact that postgres databases can be restarted from under us	2015-04-27 12:40:49 +01:00
Erik Johnston	b8092fbc82	Go back to storing JSON in TEXT	2015-04-16 11:17:52 +01:00
Erik Johnston	c756dfeb14	Correctly identify deadlocks	2015-04-15 10:23:42 +01:00
Erik Johnston	127fad17dd	Add postgres database engine	2015-04-14 14:50:29 +01:00