I wish I’d found this a few months ago … an open source object database. Absolutely perfect for PowerTime.
I’ve managed to wring a lot better performance out of the SQL persister. The office unit test runtime is now down to ~11 seconds from over 40 seconds.
Things will get harder from now on… all of the easy optimisations have been done. There is one big optimisation I still have to do, but that requires quite a big code change and I’m not 100% sure it will make a big difference. INSERT’ing into SQLite doesn’t seem to be hugely slower than UPDATE’ing.
Once I’ve done a workable flat file persister I will combine it with the SQL persister so that you can choose which one is right for you. The flat file persister will work fine for most people.
As this is the third time I’ve implemented the persister layer I should be able to do it fairly quickly. 
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