Sure, why not. tilly originally mentioned a bitmap so I mentioned something cheaper in memory. You can build multi dimensional Judy arrays. In particular, JudyHS is implemented as a nested set of JudyL arrays. I've posted a snippet at Dump JudyHS which demos dumping a JudyHS structure.

It's explicitly required for this to work that Judy is nestable.

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In reply to Re^4: Netflix (or on handling large amounts of data efficiently in perl) by diotalevi
in thread Netflix (or on handling large amounts of data efficiently in perl) by Garp

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