Collect and present all errors at once

[sebastian]

We have the evil habit of presenting a single error at a time.
Given the complexity and share number of our restrictions it's not uncommon that you run into multiple restrictions at a time.
Our system fails early and fast and only show you the first problem it has encountered. Once the problem has been fixed we then show whatever else ails the query.

I think it would be more compassionate to the analyst to list all the problems we know exist at once. That way they have a better sense of what needs fixing, and save themselves some superfluous debug cycles (which undoubtedly erodes they joy and Christmas spirit a little bit each time).

[cristianberneanu]

I am not a fan of this idea. The root of the problem is that we have too many restrictions, making it hard to generate valid queries. We should work on that, even though that is the far harder problem.

Showing multiple errors at the same time could be more confusing, as the first error might be the cause of the others.
Continuing to validate the query will lead to more crashes, as the current validations assume previous validations passed.