Update query-over.md

[emirmx]

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[emirmx]

I tried to make it understandable but the terminology and the wording could be a bit off.

[emirmx]

One more thing. The only real issue here is that originally instead of Specializations cannot be retrieved.. it should be Generalizations cannot be retrieved.... But I wanted to make it more clearer.

But if you think the original wording is fine then you can also only replace Specialization with Generalizations.

[MarkvanMents]

Thanks - I'm having a look now, but trying to read the whole document so I have some context.
This is definitely difficult to get your head around if you are not an experienced DB developer/admin so any improvement is good!

[MarkvanMents]

@emirmx

Thanks for the PR and the explanation of why it is needed.

I think I understand the issue and have made a couple of comments below. Let me know if you think they make sense.

[MarkvanMents]

Thanks for the PR.
Approving and merging.