Hi Nicolas,

Which version of OrientDB are you using?

Thanks

Luigi


2017-06-14 16:08 GMT+02:00 nicolas treiber <[email protected]>:

> Hi,
> I have a weird problem with Match queries with a WHILE.
> I have two classes: Gallery and Folder. Galleries and Folders can have
> multiples 'has_folder' edges to other folders (it's a folder tree), and I
> wanted to fetch the folder tree of a Gallery. I tried the following:
>
> MATCH {class: Gallery, as: g}.(outE('has_folder').inV()){class: Folder,
> as: f, while: ($depth < 6)} RETURN g, f
>
> But it returns no result. After some tries, I found out that it comes from
> the "class: Folder" field. If I try:
>
> MATCH {class: Gallery, as: g}.(outE('has_folder').inV()){while: ($depth <
> 6)} RETURN g, f
> And I get the expected results... with a weird tuple where g and f are
> both the gallery (I checked, the gallery does not have an edge to itself),
> looks like a bug to me, and I think it might cause the problem with the
> first query (because OrientDB would find the relationship gallery-->gallery
> first, but since the Gallery does not have the class Folder it stops
> there...)
>
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