! operator(not) issue

[Osypchuk]

I discovered interesting issue with ! and bool variables. Following code returns emtry result:

DocumentCollection.AsQueryable().Where(p=> !p.IsObsolete && p.IsPublished);

Such code works fine: DocumentCollection.AsQueryable().Where(p=> (p.IsObsolete == false) && p.IsPublished);

Is it bug or feature? :)

[craiggwilson]

It's a feature :). Yeah, this is a known issue and is actually more difficult to solve than you'd think. Your solution to use == false is the correct way around this. A couple of people have actually taken a shot at fixing this and we always get it halfway there and then something about it doesn't work in all cases or breaks something else.