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From Aristedes Maniatis <>
Subject Re: outer joins
Date Wed, 13 Jan 2010 11:09:39 GMT
On 13/01/10 8:57 PM, Andrus Adamchik wrote:
>> Also, I'm not sure of the point being made in the last section
>> "Matching Path Expressions".
> Maybe that needs to be more explicit. The point is that if your path on
> the left resolves to an attribute of a certain type, the value on the
> right must be of that type as well (and there's no automatic type
> conversions). I guess we can expand that to explain some variations of
> this rule (e.g. instead of DataObject, you can pass ObjectId, etc.)

I'll move that then to the expression page, since there is no left/right when you are talking
just about paths as we are on this page.


Aristedes Maniatis
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