Hi Kenny,
Yes, it's designed to support that, and the basic query functions are tested on 
SQLGraph for both mysql and sqlite in our standard test suite.

Without basic information like the stack dump showing what line the error 
occurred at, it's hard to give specific advice.  Here is my best guess:

- it looks like the AttributeError is coming not from GraphQuery but from 
SQLGraph.  Are you sure your SQLGraph is properly set up to work completely?  
It looks like there is some confusion regarding the source or destination 
database objects: a database object is expected (e.g. as a key for a SQLGraph 
query) and as such is expected to have an 'id' attribute.  According to the 
error message, instead of an object, a plain 'long' is getting passed.

I hope that helps get you started.  If you want to post a more detailed stack 
dump and basic info about your SQLGraph (the code that created it and populated 
it with data; the schemas of the source, dest and edge tables that it 
connects), we can try to help you figure this out.

-- Chris

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