but I am ashamed to admit I am not even sure what it is called

In this case it's a hash of hashes, or just "nested hashes".

But when data structures grow more complicated it doesn't make sense to invent ever more complicated names for them. Usually a Data::Dumper output of an example data structure explains its structure.

In reply to Re: Mystery (to me) Data Structure by moritz
in thread Mystery (to me) Data Structure by Dru

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