I think what Corion is implying is that since you're squashing the second level keys to sequential indexen you could just keep them in an arrayref instead of a hash, and the element index would be the ID naturally (which makes sense; you'd just build a new parallel copy by walking over each sub-hash's values sorted by the key and push them into the new array).

The cake is a lie.
The cake is a lie.
The cake is a lie.

In reply to Re^2: Changing key values, i.e. renumbering keys? by Fletch
in thread Changing key values, i.e. renumbering keys? by PerlKitten

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