>>Developers will never have access to a complete list of bugs, as this
>>information is considered proprietary.
>
>Besides, there are bugs which showed up long enough to report them and then never again, doc bugs, things that we think are bugs but are really by design (for example, is it actually documented anywhere that a left/right join fills in nulls?), etc.

Good point. I'll wager there are other things that looked like bugs, but in fact turned out not to be.