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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
I agree. Wording in this kata is an issue
also "vouches"
The wording of the challenge is confusing for me - maybe because I'm not a native English speaker. I understood we're looking for members having spent more than $1000 in total in departments with a turnover of $10.000 or more.
But you're looking for such members having spent more than $1000 in at least ONE department with a turnover of at least $10.000.
Futhermore, there is a typo, "vourches".
The scientfic notation seems to be generated by Sequel and not by PostgreSql. Imho this should not be tested.